Sweden-Number/dlls/wined3d/directx.c

/*
 * IWineD3D implementation
 *
 * Copyright 2002-2004 Jason Edmeades
 * Copyright 2003-2004 Raphael Junqueira
 * Copyright 2004 Christian Costa
 * Copyright 2005 Oliver Stieber
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

/* Compile time diagnostics: */

#ifndef DEBUG_SINGLE_MODE
/* Set to 1 to force only a single display mode to be exposed: */
#define DEBUG_SINGLE_MODE 0
#endif


#include "config.h"
#include <assert.h>
#include "wined3d_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(d3d);
WINE_DECLARE_DEBUG_CHANNEL(d3d_caps);

/* The d3d device ID */
static const GUID IID_D3DDEVICE_D3DUID = { 0xaeb2cdd4, 0x6e41, 0x43ea, { 0x94,0x1c,0x83,0x61,0xcc,0x76,0x07,0x81 } };

/* Extension detection */
static const struct {
    const char *extension_string;
    GL_SupportedExt extension;
    DWORD version;
} EXTENSION_MAP[] = {
    /* APPLE */
    {"GL_APPLE_client_storage",             APPLE_CLIENT_STORAGE,           0                           },
    {"GL_APPLE_fence",                      APPLE_FENCE,                    0                           },
    {"GL_APPLE_flush_render",               APPLE_FLUSH_RENDER,             0                           },
    {"GL_APPLE_ycbcr_422",                  APPLE_YCBCR_422,                0                           },
    {"GL_APPLE_float_pixels",               APPLE_FLOAT_PIXELS,             0                           },

    /* ATI */
    {"GL_ATI_separate_stencil",             ATI_SEPARATE_STENCIL,           0                           },
    {"GL_ATI_texture_env_combine3",         ATI_TEXTURE_ENV_COMBINE3,       0                           },
    {"GL_ATI_texture_mirror_once",          ATI_TEXTURE_MIRROR_ONCE,        0                           },
    {"GL_ATI_envmap_bumpmap",               ATI_ENVMAP_BUMPMAP,             0                           },

    /* ARB */
    {"GL_ARB_draw_buffers",                 ARB_DRAW_BUFFERS,               0                           },
    {"GL_ARB_fragment_program",             ARB_FRAGMENT_PROGRAM,           0                           },
    {"GL_ARB_fragment_shader",              ARB_FRAGMENT_SHADER,            0                           },
    {"GL_ARB_half_float_pixel",             ARB_HALF_FLOAT_PIXEL,           0                           },
    {"GL_ARB_imaging",                      ARB_IMAGING,                    0                           },
    {"GL_ARB_multisample",                  ARB_MULTISAMPLE,                0                           }, /* needs GLX_ARB_MULTISAMPLE as well */
    {"GL_ARB_multitexture",                 ARB_MULTITEXTURE,               0                           },
    {"GL_ARB_occlusion_query",              ARB_OCCLUSION_QUERY,            0                           },
    {"GL_ARB_pixel_buffer_object",          ARB_PIXEL_BUFFER_OBJECT,        0                           },
    {"GL_ARB_point_parameters",             ARB_POINT_PARAMETERS,           0                           },
    {"GL_ARB_point_sprite",                 ARB_POINT_SPRITE,               0                           },
    {"GL_ARB_texture_border_clamp",         ARB_TEXTURE_BORDER_CLAMP,       0                           },
    {"GL_ARB_texture_compression",          ARB_TEXTURE_COMPRESSION,        0                           },
    {"GL_ARB_texture_cube_map",             ARB_TEXTURE_CUBE_MAP,           0                           },
    {"GL_ARB_texture_env_add",              ARB_TEXTURE_ENV_ADD,            0                           },
    {"GL_ARB_texture_env_combine",          ARB_TEXTURE_ENV_COMBINE,        0                           },
    {"GL_ARB_texture_env_dot3",             ARB_TEXTURE_ENV_DOT3,           0                           },
    {"GL_ARB_texture_float",                ARB_TEXTURE_FLOAT,              0                           },
    {"GL_ARB_texture_mirrored_repeat",      ARB_TEXTURE_MIRRORED_REPEAT,    0                           },
    {"GL_ARB_texture_non_power_of_two",     ARB_TEXTURE_NON_POWER_OF_TWO,   0                           },
    {"GL_ARB_texture_rectangle",            ARB_TEXTURE_RECTANGLE,          0                           },
    {"GL_ARB_vertex_blend",                 ARB_VERTEX_BLEND,               0                           },
    {"GL_ARB_vertex_buffer_object",         ARB_VERTEX_BUFFER_OBJECT,       0                           },
    {"GL_ARB_vertex_program",               ARB_VERTEX_PROGRAM,             0                           },
    {"GL_ARB_vertex_shader",                ARB_VERTEX_SHADER,              0                           },
    {"GL_ARB_shader_objects",               ARB_SHADER_OBJECTS,             0                           },

    /* EXT */
    {"GL_EXT_blend_color",                  EXT_BLEND_COLOR,                0                           },
    {"GL_EXT_blend_minmax",                 EXT_BLEND_MINMAX,               0                           },
    {"GL_EXT_blend_equation_separate",      EXT_BLEND_EQUATION_SEPARATE,    0                           },
    {"GL_EXT_blend_func_separate",          EXT_BLEND_FUNC_SEPARATE,        0                           },
    {"GL_EXT_fog_coord",                    EXT_FOG_COORD,                  0                           },
    {"GL_EXT_framebuffer_blit",             EXT_FRAMEBUFFER_BLIT,           0                           },
    {"GL_EXT_framebuffer_object",           EXT_FRAMEBUFFER_OBJECT,         0                           },
    {"GL_EXT_paletted_texture",             EXT_PALETTED_TEXTURE,           0                           },
    {"GL_EXT_point_parameters",             EXT_POINT_PARAMETERS,           0                           },
    {"GL_EXT_secondary_color",              EXT_SECONDARY_COLOR,            0                           },
    {"GL_EXT_stencil_two_side",             EXT_STENCIL_TWO_SIDE,           0                           },
    {"GL_EXT_stencil_wrap",                 EXT_STENCIL_WRAP,               0                           },
    {"GL_EXT_texture3D",                    EXT_TEXTURE3D,                  MAKEDWORD_VERSION(1, 2)     },
    {"GL_EXT_texture_compression_s3tc",     EXT_TEXTURE_COMPRESSION_S3TC,   0                           },
    {"GL_EXT_texture_env_add",              EXT_TEXTURE_ENV_ADD,            0                           },
    {"GL_EXT_texture_env_combine",          EXT_TEXTURE_ENV_COMBINE,        0                           },
    {"GL_EXT_texture_env_dot3",             EXT_TEXTURE_ENV_DOT3,           0                           },
    {"GL_EXT_texture_sRGB",                 EXT_TEXTURE_SRGB,               0                           },
    {"GL_EXT_texture_filter_anisotropic",   EXT_TEXTURE_FILTER_ANISOTROPIC, 0                           },
    {"GL_EXT_texture_lod",                  EXT_TEXTURE_LOD,                0                           },
    {"GL_EXT_texture_lod_bias",             EXT_TEXTURE_LOD_BIAS,           0                           },
    {"GL_EXT_vertex_shader",                EXT_VERTEX_SHADER,              0                           },
    {"GL_EXT_vertex_weighting",             EXT_VERTEX_WEIGHTING,           0                           },
    {"GL_EXT_gpu_program_parameters",       EXT_GPU_PROGRAM_PARAMETERS,     0                           },

    /* NV */
    {"GL_NV_half_float",                    NV_HALF_FLOAT,                  0                           },
    {"GL_NV_fence",                         NV_FENCE,                       0                           },
    {"GL_NV_fog_distance",                  NV_FOG_DISTANCE,                0                           },
    {"GL_NV_fragment_program",              NV_FRAGMENT_PROGRAM,            0                           },
    {"GL_NV_fragment_program2",             NV_FRAGMENT_PROGRAM2,           0                           },
    {"GL_NV_register_combiners",            NV_REGISTER_COMBINERS,          0                           },
    {"GL_NV_register_combiners2",           NV_REGISTER_COMBINERS2,         0                           },
    {"GL_NV_texgen_reflection",             NV_TEXGEN_REFLECTION,           0                           },
    {"GL_NV_texture_env_combine4",          NV_TEXTURE_ENV_COMBINE4,        0                           },
    {"GL_NV_texture_shader",                NV_TEXTURE_SHADER,              0                           },
    {"GL_NV_texture_shader2",               NV_TEXTURE_SHADER2,             0                           },
    {"GL_NV_texture_shader3",               NV_TEXTURE_SHADER3,             0                           },
    {"GL_NV_occlusion_query",               NV_OCCLUSION_QUERY,             0                           },
    {"GL_NV_vertex_program",                NV_VERTEX_PROGRAM,              0                           },
    {"GL_NV_vertex_program1_1",             NV_VERTEX_PROGRAM1_1,           0                           },
    {"GL_NV_vertex_program2",               NV_VERTEX_PROGRAM2,             0                           },
    {"GL_NV_vertex_program3",               NV_VERTEX_PROGRAM3,             0                           },
    {"GL_NV_depth_clamp",                   NV_DEPTH_CLAMP,                 0                           },
    {"GL_NV_light_max_exponent",            NV_LIGHT_MAX_EXPONENT,          0                           },

    /* SGI */
    {"GL_SGIS_generate_mipmap",             SGIS_GENERATE_MIPMAP,           0                           },
};

/**********************************************************
 * Utility functions follow
 **********************************************************/

/* Adapters */
static int numAdapters = 0;
static struct WineD3DAdapter Adapters[1];

static HRESULT WINAPI IWineD3DImpl_CheckDeviceFormat(IWineD3D *iface, UINT Adapter, WINED3DDEVTYPE DeviceType, WINED3DFORMAT AdapterFormat, DWORD Usage, WINED3DRESOURCETYPE RType, WINED3DFORMAT CheckFormat);

/* lookup tables */
int minLookup[MAX_LOOKUPS];
int maxLookup[MAX_LOOKUPS];
DWORD *stateLookup[MAX_LOOKUPS];

DWORD minMipLookup[WINED3DTEXF_ANISOTROPIC + 1][WINED3DTEXF_LINEAR + 1];

/* drawStridedSlow attributes */
glAttribFunc position_funcs[WINED3DDECLTYPE_UNUSED];
glAttribFunc diffuse_funcs[WINED3DDECLTYPE_UNUSED];
glAttribFunc specular_funcs[WINED3DDECLTYPE_UNUSED];
glAttribFunc normal_funcs[WINED3DDECLTYPE_UNUSED];
glTexAttribFunc texcoord_funcs[WINED3DDECLTYPE_UNUSED];

/**
 * Note: GL seems to trap if GetDeviceCaps is called before any HWND's created
 * ie there is no GL Context - Get a default rendering context to enable the
 * function query some info from GL
 */

static int             wined3d_fake_gl_context_ref = 0;
static BOOL            wined3d_fake_gl_context_foreign;
static BOOL            wined3d_fake_gl_context_available = FALSE;
static HDC             wined3d_fake_gl_context_hdc = NULL;
static HWND            wined3d_fake_gl_context_hwnd = NULL;

static CRITICAL_SECTION wined3d_fake_gl_context_cs;
static CRITICAL_SECTION_DEBUG wined3d_fake_gl_context_cs_debug =
{
    0, 0, &wined3d_fake_gl_context_cs,
    { &wined3d_fake_gl_context_cs_debug.ProcessLocksList,
      &wined3d_fake_gl_context_cs_debug.ProcessLocksList },
    0, 0, { (DWORD_PTR)(__FILE__ ": wined3d_fake_gl_context_cs") }
};
static CRITICAL_SECTION wined3d_fake_gl_context_cs = { &wined3d_fake_gl_context_cs_debug, -1, 0, 0, 0, 0 };

static void WineD3D_ReleaseFakeGLContext(void) {
    HGLRC glCtx;

    EnterCriticalSection(&wined3d_fake_gl_context_cs);

    if(!wined3d_fake_gl_context_available) {
        TRACE_(d3d_caps)("context not available\n");
        LeaveCriticalSection(&wined3d_fake_gl_context_cs);
        return;
    }

    glCtx = pwglGetCurrentContext();

    TRACE_(d3d_caps)("decrementing ref from %i\n", wined3d_fake_gl_context_ref);
    if (0 == (--wined3d_fake_gl_context_ref) ) {
        if(!wined3d_fake_gl_context_foreign && glCtx) {
            TRACE_(d3d_caps)("destroying fake GL context\n");
            pwglMakeCurrent(NULL, NULL);
            pwglDeleteContext(glCtx);
        }
        if(wined3d_fake_gl_context_hdc)
            ReleaseDC(wined3d_fake_gl_context_hwnd, wined3d_fake_gl_context_hdc);
        wined3d_fake_gl_context_hdc = NULL; /* Make sure we don't think that it is still around */
        if(wined3d_fake_gl_context_hwnd)
            DestroyWindow(wined3d_fake_gl_context_hwnd);
        wined3d_fake_gl_context_hwnd = NULL;
        wined3d_fake_gl_context_available = FALSE;
    }
    assert(wined3d_fake_gl_context_ref >= 0);

    LeaveCriticalSection(&wined3d_fake_gl_context_cs);
}

static BOOL WineD3D_CreateFakeGLContext(void) {
    HGLRC glCtx = NULL;

    EnterCriticalSection(&wined3d_fake_gl_context_cs);

    TRACE("getting context...\n");
    if(wined3d_fake_gl_context_ref > 0) goto ret;
    assert(0 == wined3d_fake_gl_context_ref);

    wined3d_fake_gl_context_foreign = TRUE;

    glCtx = pwglGetCurrentContext();
    if (!glCtx) {
        PIXELFORMATDESCRIPTOR pfd;
        int iPixelFormat;

        wined3d_fake_gl_context_foreign = FALSE;

        /* We need a fake window as a hdc retrieved using GetDC(0) can't be used for much GL purposes */
        wined3d_fake_gl_context_hwnd = CreateWindowA("WineD3D_OpenGL", "WineD3D fake window", WS_OVERLAPPEDWINDOW,        10, 10, 10, 10, NULL, NULL, NULL, NULL);
        if(!wined3d_fake_gl_context_hwnd) {
            ERR("HWND creation failed!\n");
            goto fail;
        }
        wined3d_fake_gl_context_hdc = GetDC(wined3d_fake_gl_context_hwnd);
        if(!wined3d_fake_gl_context_hdc) {
            ERR("GetDC failed!\n");
            goto fail;
        }

        /* PixelFormat selection */
        ZeroMemory(&pfd, sizeof(pfd));
        pfd.nSize      = sizeof(pfd);
        pfd.nVersion   = 1;
        pfd.dwFlags    = PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER | PFD_DRAW_TO_WINDOW;/*PFD_GENERIC_ACCELERATED*/
        pfd.iPixelType = PFD_TYPE_RGBA;
        pfd.cColorBits = 32;
        pfd.iLayerType = PFD_MAIN_PLANE;

        iPixelFormat = ChoosePixelFormat(wined3d_fake_gl_context_hdc, &pfd);
        if(!iPixelFormat) {
            /* If this happens something is very wrong as ChoosePixelFormat barely fails */
            ERR("Can't find a suitable iPixelFormat\n");
            goto fail;
        }
        DescribePixelFormat(wined3d_fake_gl_context_hdc, iPixelFormat, sizeof(pfd), &pfd);
        SetPixelFormat(wined3d_fake_gl_context_hdc, iPixelFormat, &pfd);

        /* Create a GL context */
        glCtx = pwglCreateContext(wined3d_fake_gl_context_hdc);
        if (!glCtx) {
            WARN_(d3d_caps)("Error creating default context for capabilities initialization\n");
            goto fail;
        }

        /* Make it the current GL context */
        if (!pwglMakeCurrent(wined3d_fake_gl_context_hdc, glCtx)) {
            WARN_(d3d_caps)("Error setting default context as current for capabilities initialization\n");
            goto fail;
        }
    }

  ret:
    TRACE("incrementing ref from %i\n", wined3d_fake_gl_context_ref);
    wined3d_fake_gl_context_ref++;
    wined3d_fake_gl_context_available = TRUE;
    LeaveCriticalSection(&wined3d_fake_gl_context_cs);
    return TRUE;
  fail:
    if(wined3d_fake_gl_context_hdc)
        ReleaseDC(wined3d_fake_gl_context_hwnd, wined3d_fake_gl_context_hdc);
    wined3d_fake_gl_context_hdc = NULL;
    if(wined3d_fake_gl_context_hwnd)
        DestroyWindow(wined3d_fake_gl_context_hwnd);
    wined3d_fake_gl_context_hwnd = NULL;
    if(glCtx) pwglDeleteContext(glCtx);
    LeaveCriticalSection(&wined3d_fake_gl_context_cs);
    return FALSE;
}

/* Adjust the amount of used texture memory */
long WineD3DAdapterChangeGLRam(IWineD3DDeviceImpl *D3DDevice, long glram){
    UINT Adapter = D3DDevice->adapterNo;

    Adapters[Adapter].UsedTextureRam += glram;
    TRACE("Adjusted gl ram by %ld to %d\n", glram, Adapters[Adapter].UsedTextureRam);
    return Adapters[Adapter].UsedTextureRam;
}

/**********************************************************
 * IUnknown parts follows
 **********************************************************/

static HRESULT WINAPI IWineD3DImpl_QueryInterface(IWineD3D *iface,REFIID riid,LPVOID *ppobj)
{
    IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;

    TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppobj);
    if (IsEqualGUID(riid, &IID_IUnknown)
        || IsEqualGUID(riid, &IID_IWineD3DBase)
        || IsEqualGUID(riid, &IID_IWineD3DDevice)) {
        IUnknown_AddRef(iface);
        *ppobj = This;
        return S_OK;
    }
    *ppobj = NULL;
    return E_NOINTERFACE;
}

static ULONG WINAPI IWineD3DImpl_AddRef(IWineD3D *iface) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    ULONG refCount = InterlockedIncrement(&This->ref);

    TRACE("(%p) : AddRef increasing from %d\n", This, refCount - 1);
    return refCount;
}

static ULONG WINAPI IWineD3DImpl_Release(IWineD3D *iface) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    ULONG ref;
    TRACE("(%p) : Releasing from %d\n", This, This->ref);
    ref = InterlockedDecrement(&This->ref);
    if (ref == 0) {
        HeapFree(GetProcessHeap(), 0, This);
    }

    return ref;
}

/* Set the shader type for this device, depending on the given capabilities,
 * the device type, and the user preferences in wined3d_settings */

void select_shader_mode(
    WineD3D_GL_Info *gl_info,
    WINED3DDEVTYPE DeviceType,
    int* ps_selected,
    int* vs_selected) {

    if (wined3d_settings.vs_mode == VS_NONE) {
        *vs_selected = SHADER_NONE;
    } else if (gl_info->supported[ARB_VERTEX_SHADER] && wined3d_settings.glslRequested) {
        /* Geforce4 cards support GLSL but for vertex shaders only. Further its reported GLSL caps are
         * wrong. This combined with the fact that glsl won't offer more features or performance, use ARB
         * shaders only on this card. */
        if(gl_info->vs_nv_version && gl_info->vs_nv_version < VS_VERSION_20)
            *vs_selected = SHADER_ARB;
        else
            *vs_selected = SHADER_GLSL;
    } else if (gl_info->supported[ARB_VERTEX_PROGRAM]) {
        *vs_selected = SHADER_ARB;
    } else {
        *vs_selected = SHADER_NONE;
    }

    if (wined3d_settings.ps_mode == PS_NONE) {
        *ps_selected = SHADER_NONE;
    } else if (gl_info->supported[ARB_FRAGMENT_SHADER] && wined3d_settings.glslRequested) {
        *ps_selected = SHADER_GLSL;
    } else if (gl_info->supported[ARB_FRAGMENT_PROGRAM]) {
        *ps_selected = SHADER_ARB;
    } else {
        *ps_selected = SHADER_NONE;
    }
}

/** Select the number of report maximum shader constants based on the selected shader modes */
static void select_shader_max_constants(
    int ps_selected_mode,
    int vs_selected_mode,
    WineD3D_GL_Info *gl_info) {

    switch (vs_selected_mode) {
        case SHADER_GLSL:
            /* Subtract the other potential uniforms from the max available (bools, ints, and 1 row of projection matrix) */
            gl_info->max_vshader_constantsF = gl_info->vs_glsl_constantsF - (MAX_CONST_B / 4) - MAX_CONST_I - 1;
            break;
        case SHADER_ARB:
            /* We have to subtract any other PARAMs that we might use in our shader programs.
             * ATI seems to count 2 implicit PARAMs when we use fog and NVIDIA counts 1,
             * and we reference one row of the PROJECTION matrix which counts as 1 PARAM. */
            gl_info->max_vshader_constantsF = gl_info->vs_arb_constantsF - 3;
            break;
        default:
            gl_info->max_vshader_constantsF = 0;
            break;
    }

    switch (ps_selected_mode) {
        case SHADER_GLSL:
            /* Subtract the other potential uniforms from the max available (bools & ints), and 2 states for fog.
             * In theory the texbem instruction may need one more shader constant too. But lets assume
             * that a sm <= 1.3 shader does not need all the uniforms provided by a glsl-capable card,
             * and lets not take away a uniform needlessly from all other shaders.
             */
            gl_info->max_pshader_constantsF = gl_info->ps_glsl_constantsF - (MAX_CONST_B / 4) - MAX_CONST_I - 2;
            break;
        case SHADER_ARB:
            /* The arb shader only loads the bump mapping environment matrix into the shader if it finds
             * a free constant to do that, so only reduce the number of available constants by 2 for the fog states.
             */
            gl_info->max_pshader_constantsF = gl_info->ps_arb_constantsF - 2;
            break;
        default:
            gl_info->max_pshader_constantsF = 0;
            break;
    }
}

/**********************************************************
 * IWineD3D parts follows
 **********************************************************/

#define GLINFO_LOCATION (*gl_info)
static inline BOOL test_arb_vs_offset_limit(WineD3D_GL_Info *gl_info) {
    GLuint prog;
    BOOL ret = FALSE;
    const char *testcode =
        "!!ARBvp1.0\n"
        "PARAM C[66] = { program.env[0..65] };\n"
        "ADDRESS A0;"
        "PARAM zero = {0.0, 0.0, 0.0, 0.0};\n"
        "ARL A0.x, zero.x;\n"
        "MOV result.position, C[A0.x + 65];\n"
        "END\n";

    while(glGetError());
    GL_EXTCALL(glGenProgramsARB(1, &prog));
    if(!prog) {
        ERR("Failed to create an ARB offset limit test program\n");
    }
    GL_EXTCALL(glBindProgramARB(GL_VERTEX_PROGRAM_ARB, prog));
    GL_EXTCALL(glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
                                  strlen(testcode), testcode));
    if(glGetError() != 0) {
        TRACE("OpenGL implementation does not allow indirect addressing offsets > 63\n");
        TRACE("error: %s\n", debugstr_a((const char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB)));
        ret = TRUE;
    } else TRACE("OpenGL implementation allows offsets > 63\n");

    GL_EXTCALL(glBindProgramARB(GL_VERTEX_PROGRAM_ARB, 0));
    GL_EXTCALL(glDeleteProgramsARB(1, &prog));
    checkGLcall("ARB vp offset limit test cleanup\n");

    return ret;
}

static DWORD ver_for_ext(GL_SupportedExt ext)
{
    unsigned int i;
    for (i = 0; i < (sizeof(EXTENSION_MAP) / sizeof(*EXTENSION_MAP)); ++i) {
        if(EXTENSION_MAP[i].extension == ext) {
            return EXTENSION_MAP[i].version;
        }
    }
    return 0;
}

BOOL IWineD3DImpl_FillGLCaps(WineD3D_GL_Info *gl_info) {
    const char *GL_Extensions    = NULL;
    const char *WGL_Extensions   = NULL;
    const char *gl_string        = NULL;
    const char *gl_string_cursor = NULL;
    GLint       gl_max;
    GLfloat     gl_floatv[2];
    int         major = 1, minor = 0;
    BOOL        return_value = TRUE;
    unsigned    i;
    HDC         hdc;
    unsigned int vidmem=0;

    TRACE_(d3d_caps)("(%p)\n", gl_info);

    ENTER_GL();

    gl_string = (const char *) glGetString(GL_RENDERER);
    if (NULL == gl_string)
	gl_string = "None";
    strcpy(gl_info->gl_renderer, gl_string);

    gl_string = (const char *) glGetString(GL_VENDOR);
    TRACE_(d3d_caps)("Filling vendor string %s\n", gl_string);
    if (gl_string != NULL) {
        /* Fill in the GL vendor */
        if (strstr(gl_string, "NVIDIA")) {
            gl_info->gl_vendor = VENDOR_NVIDIA;
        } else if (strstr(gl_string, "ATI")) {
            gl_info->gl_vendor = VENDOR_ATI;
        } else if (strstr(gl_string, "Intel(R)") ||
                   strstr(gl_info->gl_renderer, "Intel(R)") ||
                   strstr(gl_string, "Intel Inc.")) {
            gl_info->gl_vendor = VENDOR_INTEL;
        } else if (strstr(gl_string, "Mesa")) {
            gl_info->gl_vendor = VENDOR_MESA;
        } else {
            gl_info->gl_vendor = VENDOR_WINE;
        }
    } else {
        gl_info->gl_vendor = VENDOR_WINE;
    }


    TRACE_(d3d_caps)("found GL_VENDOR (%s)->(0x%04x)\n", debugstr_a(gl_string), gl_info->gl_vendor);

    /* Parse the GL_VERSION field into major and minor information */
    gl_string = (const char *) glGetString(GL_VERSION);
    if (gl_string != NULL) {

        /* First, parse the generic opengl version. This is supposed not to be convoluted with
         * driver specific information
         */
        gl_string_cursor = gl_string;
        major = atoi(gl_string_cursor);
        if(major <= 0) {
            ERR("Invalid opengl major version: %d\n", major);
        }
        while (*gl_string_cursor <= '9' && *gl_string_cursor >= '0') {
            ++gl_string_cursor;
        }
        if (*gl_string_cursor++ != '.') {
            ERR_(d3d_caps)("Invalid opengl version string: %s\n", debugstr_a(gl_string));
        }
        minor = atoi(gl_string_cursor);
        TRACE_(d3d_caps)("Found OpenGL version: %d.%d\n", major, minor);
        gl_info->gl_version = MAKEDWORD_VERSION(major, minor);

        /* Now parse the driver specific string which we'll report to the app */
        switch (gl_info->gl_vendor) {
        case VENDOR_NVIDIA:
            gl_string_cursor = strstr(gl_string, "NVIDIA");
            if (!gl_string_cursor) {
                ERR_(d3d_caps)("Invalid nVidia version string: %s\n", debugstr_a(gl_string));
                break;
            }

            gl_string_cursor = strstr(gl_string_cursor, " ");
            if (!gl_string_cursor) {
                ERR_(d3d_caps)("Invalid nVidia version string: %s\n", debugstr_a(gl_string));
                break;
            }

            while (*gl_string_cursor == ' ') {
                ++gl_string_cursor;
            }

            if (!*gl_string_cursor) {
                ERR_(d3d_caps)("Invalid nVidia version string: %s\n", debugstr_a(gl_string));
                break;
            }

            major = atoi(gl_string_cursor);
            while (*gl_string_cursor <= '9' && *gl_string_cursor >= '0') {
                ++gl_string_cursor;
            }

            if (*gl_string_cursor++ != '.') {
                ERR_(d3d_caps)("Invalid nVidia version string: %s\n", debugstr_a(gl_string));
                break;
            }

            minor = atoi(gl_string_cursor);
            minor = major*100+minor;
            major = 10;

            break;

        case VENDOR_ATI:
            major = minor = 0;
            gl_string_cursor = strchr(gl_string, '-');
            if (gl_string_cursor) {
                int error = 0;
                gl_string_cursor++;

                /* Check if version number is of the form x.y.z */
                if (*gl_string_cursor > '9' && *gl_string_cursor < '0')
                    error = 1;
                if (!error && *(gl_string_cursor+2) > '9' && *(gl_string_cursor+2) < '0')
                    error = 1;
                if (!error && *(gl_string_cursor+4) > '9' && *(gl_string_cursor+4) < '0')
                    error = 1;
                if (!error && *(gl_string_cursor+1) != '.' && *(gl_string_cursor+3) != '.')
                    error = 1;

                /* Mark version number as malformed */
                if (error)
                    gl_string_cursor = 0;
            }

            if (!gl_string_cursor)
                WARN_(d3d_caps)("malformed GL_VERSION (%s)\n", debugstr_a(gl_string));
            else {
                major = *gl_string_cursor - '0';
                minor = (*(gl_string_cursor+2) - '0') * 256 + (*(gl_string_cursor+4) - '0');
            }
            break;

        case VENDOR_INTEL:
            /* Apple and Mesa version strings look differently, but both provide intel drivers */
            if(strstr(gl_string, "APPLE")) {
                /* [0-9]+.[0-9]+ APPLE-[0-9]+.[0.9]+.[0.9]+
                 * We only need the first part, and use the APPLE as identification
                 * "1.2 APPLE-1.4.56"
                 */
                gl_string_cursor = gl_string;
                major = atoi(gl_string_cursor);
                while (*gl_string_cursor <= '9' && *gl_string_cursor >= '0') {
                    ++gl_string_cursor;
                }

                if (*gl_string_cursor++ != '.') {
                    ERR_(d3d_caps)("Invalid MacOS-Intel version string: %s\n", debugstr_a(gl_string));
                    break;
                }

                minor = atoi(gl_string_cursor);
                break;
            }

        case VENDOR_MESA:
            gl_string_cursor = strstr(gl_string, "Mesa");
            gl_string_cursor = strstr(gl_string_cursor, " ");
            while (*gl_string_cursor && ' ' == *gl_string_cursor) ++gl_string_cursor;
            if (*gl_string_cursor) {
                char tmp[16];
                int cursor = 0;

                while (*gl_string_cursor <= '9' && *gl_string_cursor >= '0') {
                    tmp[cursor++] = *gl_string_cursor;
                    ++gl_string_cursor;
                }
                tmp[cursor] = 0;
                major = atoi(tmp);

                if (*gl_string_cursor != '.') WARN_(d3d_caps)("malformed GL_VERSION (%s)\n", debugstr_a(gl_string));
                ++gl_string_cursor;

                cursor = 0;
                while (*gl_string_cursor <= '9' && *gl_string_cursor >= '0') {
                    tmp[cursor++] = *gl_string_cursor;
                    ++gl_string_cursor;
                }
                tmp[cursor] = 0;
                minor = atoi(tmp);
            }
            break;

        default:
            major = 0;
            minor = 9;
        }
        gl_info->driver_version = MAKEDWORD_VERSION(major, minor);
        TRACE_(d3d_caps)("found driver version (%s)->%i.%i->(0x%08x)\n", debugstr_a(gl_string), major, minor, gl_info->driver_version);
        /* Current Windows drivers have versions like 6.14.... (some older have an earlier version) */
        gl_info->driver_version_hipart = MAKEDWORD_VERSION(6, 14);
    } else {
        FIXME("OpenGL driver did not return version information\n");
        gl_info->driver_version = MAKEDWORD_VERSION(0, 0);
        gl_info->driver_version_hipart = MAKEDWORD_VERSION(6, 14);
    }

    TRACE_(d3d_caps)("found GL_RENDERER (%s)->(0x%04x)\n", debugstr_a(gl_info->gl_renderer), gl_info->gl_card);

    /*
     * Initialize openGL extension related variables
     *  with Default values
     */
    memset(&gl_info->supported, 0, sizeof(gl_info->supported));
    gl_info->max_buffers        = 1;
    gl_info->max_textures       = 1;
    gl_info->max_texture_stages = 1;
    gl_info->max_fragment_samplers = 1;
    gl_info->max_vertex_samplers = 0;
    gl_info->max_combined_samplers = 0;
    gl_info->max_sampler_stages = 1;
    gl_info->ps_arb_version = PS_VERSION_NOT_SUPPORTED;
    gl_info->ps_arb_max_temps = 0;
    gl_info->ps_arb_max_instructions = 0;
    gl_info->vs_arb_version = VS_VERSION_NOT_SUPPORTED;
    gl_info->vs_arb_max_temps = 0;
    gl_info->vs_arb_max_instructions = 0;
    gl_info->vs_nv_version  = VS_VERSION_NOT_SUPPORTED;
    gl_info->vs_ati_version = VS_VERSION_NOT_SUPPORTED;
    gl_info->vs_glsl_constantsF = 0;
    gl_info->ps_glsl_constantsF = 0;
    gl_info->vs_arb_constantsF = 0;
    gl_info->ps_arb_constantsF = 0;

    /* Retrieve opengl defaults */
    glGetIntegerv(GL_MAX_CLIP_PLANES, &gl_max);
    gl_info->max_clipplanes = min(WINED3DMAXUSERCLIPPLANES, gl_max);
    TRACE_(d3d_caps)("ClipPlanes support - num Planes=%d\n", gl_max);

    glGetIntegerv(GL_MAX_LIGHTS, &gl_max);
    gl_info->max_lights = gl_max;
    TRACE_(d3d_caps)("Lights support - max lights=%d\n", gl_max);

    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &gl_max);
    gl_info->max_texture_size = gl_max;
    TRACE_(d3d_caps)("Maximum texture size support - max texture size=%d\n", gl_max);

    glGetFloatv(GL_POINT_SIZE_RANGE, gl_floatv);
    gl_info->max_pointsizemin = gl_floatv[0];
    gl_info->max_pointsize = gl_floatv[1];
    TRACE_(d3d_caps)("Maximum point size support - max point size=%f\n", gl_floatv[1]);

    glGetIntegerv(GL_AUX_BUFFERS, &gl_max);
    gl_info->max_aux_buffers = gl_max;
    TRACE_(d3d_caps)("Offscreen rendering support - number of aux buffers=%d\n", gl_max);

    /* Parse the gl supported features, in theory enabling parts of our code appropriately */
    GL_Extensions = (const char *) glGetString(GL_EXTENSIONS);
    TRACE_(d3d_caps)("GL_Extensions reported:\n");

    if (NULL == GL_Extensions) {
        ERR("   GL_Extensions returns NULL\n");
    } else {
        while (*GL_Extensions != 0x00) {
            const char *Start;
            char        ThisExtn[256];
            size_t      len;

            while (isspace(*GL_Extensions)) GL_Extensions++;
            Start = GL_Extensions;
            while (!isspace(*GL_Extensions) && *GL_Extensions != 0x00) {
                GL_Extensions++;
            }

            len = GL_Extensions - Start;
            if (len == 0 || len >= sizeof(ThisExtn))
                continue;

            memcpy(ThisExtn, Start, len);
            ThisExtn[len] = '\0';
            TRACE_(d3d_caps)("- %s\n", ThisExtn);

            for (i = 0; i < (sizeof(EXTENSION_MAP) / sizeof(*EXTENSION_MAP)); ++i) {
                if (!strcmp(ThisExtn, EXTENSION_MAP[i].extension_string)) {
                    TRACE_(d3d_caps)(" FOUND: %s support\n", EXTENSION_MAP[i].extension_string);
                    gl_info->supported[EXTENSION_MAP[i].extension] = TRUE;
                    break;
                }
            }
        }
        /* Now work out what GL support this card really has */
#define USE_GL_FUNC(type, pfn, ext, replace) { \
            DWORD ver = ver_for_ext(ext); \
            if(gl_info->supported[ext]) gl_info->pfn = (type) pwglGetProcAddress(#pfn); \
            else if(ver && ver <= gl_info->gl_version) gl_info->pfn = (type) pwglGetProcAddress(#replace); \
            else gl_info->pfn = NULL; \
        }
        GL_EXT_FUNCS_GEN;
#undef USE_GL_FUNC

#define USE_GL_FUNC(type, pfn, ext, replace) gl_info->pfn = (type) pwglGetProcAddress(#pfn);
        WGL_EXT_FUNCS_GEN;
#undef USE_GL_FUNC

        /* Now mark all the extensions supported which are included in the opengl core version. Do this *after*
         * loading the functions, otherwise the code above will load the extension entry points instead of the
         * core functions, which may not work
         */
        for (i = 0; i < (sizeof(EXTENSION_MAP) / sizeof(*EXTENSION_MAP)); ++i) {
            if (gl_info->supported[EXTENSION_MAP[i].extension] == FALSE &&
                EXTENSION_MAP[i].version <= gl_info->gl_version && EXTENSION_MAP[i].version) {
                TRACE_(d3d_caps)(" GL CORE: %s support\n", EXTENSION_MAP[i].extension_string);
                gl_info->supported[EXTENSION_MAP[i].extension] = TRUE;
            }
        }

        if (gl_info->supported[APPLE_FENCE]) {
            /* GL_NV_fence and GL_APPLE_fence provide the same functionality basically.
             * The apple extension interacts with some other apple exts. Disable the NV
             * extension if the apple one is support to prevent confusion in other parts
             * of the code
             */
            gl_info->supported[NV_FENCE] = FALSE;
        }
        if (gl_info->supported[APPLE_FLOAT_PIXELS]) {
            /* GL_APPLE_float_pixels == GL_ARB_texture_float + GL_ARB_half_float_pixel
             *
             * The enums are the same:
             * GL_RGBA16F_ARB     = GL_RGBA_FLOAT16_APPLE = 0x881A
             * GL_RGB16F_ARB      = GL_RGB_FLOAT16_APPLE  = 0x881B
             * GL_RGBA32F_ARB     = GL_RGBA_FLOAT32_APPLE = 0x8814
             * GL_RGB32F_ARB      = GL_RGB_FLOAT32_APPLE  = 0x8815
             * GL_HALF_FLOAT_ARB  = GL_HALF_APPLE         =  0x140B
             */
            if(!gl_info->supported[ARB_TEXTURE_FLOAT]) {
                TRACE_(d3d_caps)(" IMPLIED: GL_ARB_texture_float support(from GL_APPLE_float_pixels\n");
                gl_info->supported[ARB_TEXTURE_FLOAT] = TRUE;
            }
            if(!gl_info->supported[ARB_HALF_FLOAT_PIXEL]) {
                TRACE_(d3d_caps)(" IMPLIED: GL_ARB_half_float_pixel support(from GL_APPLE_float_pixels\n");
                gl_info->supported[ARB_HALF_FLOAT_PIXEL] = TRUE;
            }
        }
        if (gl_info->supported[ARB_TEXTURE_CUBE_MAP]) {
            TRACE_(d3d_caps)(" IMPLIED: NVIDIA (NV) Texture Gen Reflection support\n");
            gl_info->supported[NV_TEXGEN_REFLECTION] = TRUE;
        }
        if (gl_info->supported[NV_TEXTURE_SHADER2]) {
            /* GL_ATI_envmap_bumpmap won't play nice with texture shaders, so disable it
             * Won't occur in any real world situation though
             */
            gl_info->supported[ATI_ENVMAP_BUMPMAP] = FALSE;
        }
        if (gl_info->supported[ARB_DRAW_BUFFERS]) {
            glGetIntegerv(GL_MAX_DRAW_BUFFERS_ARB, &gl_max);
            gl_info->max_buffers = gl_max;
            TRACE_(d3d_caps)("Max draw buffers: %u\n", gl_max);
        }
        if (gl_info->supported[ARB_MULTITEXTURE]) {
            glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_max);
            gl_info->max_textures = min(MAX_TEXTURES, gl_max);
            TRACE_(d3d_caps)("Max textures: %d\n", gl_info->max_textures);

            if (gl_info->supported[NV_REGISTER_COMBINERS]) {
                GLint tmp;
                glGetIntegerv(GL_MAX_GENERAL_COMBINERS_NV, &tmp);
                gl_info->max_texture_stages = min(MAX_TEXTURES, tmp);
            } else {
                gl_info->max_texture_stages = min(MAX_TEXTURES, gl_max);
            }
            TRACE_(d3d_caps)("Max texture stages: %d\n", gl_info->max_texture_stages);

            if (gl_info->supported[ARB_FRAGMENT_PROGRAM]) {
                GLint tmp;
                glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS_ARB, &tmp);
                gl_info->max_fragment_samplers = min(MAX_FRAGMENT_SAMPLERS, tmp);
            } else {
                gl_info->max_fragment_samplers = max(gl_info->max_fragment_samplers, gl_max);
            }
            TRACE_(d3d_caps)("Max fragment samplers: %d\n", gl_info->max_fragment_samplers);

            if (gl_info->supported[ARB_VERTEX_SHADER]) {
                GLint tmp;
                glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, &tmp);
                gl_info->max_vertex_samplers = tmp;
                glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB, &tmp);
                gl_info->max_combined_samplers = tmp;

                /* Loading GLSL sampler uniforms is much simpler if we can assume that the sampler setup
                 * is known at shader link time. In a vertex shader + pixel shader combination this isn't
                 * an issue because then the sampler setup only depends on the two shaders. If a pixel
                 * shader is used with fixed function vertex processing we're fine too because fixed function
                 * vertex processing doesn't use any samplers. If fixed function fragment processing is
                 * used we have to make sure that all vertex sampler setups are valid together with all
                 * possible fixed function fragment processing setups. This is true if vsamplers + MAX_TEXTURES
                 * <= max_samplers. This is true on all d3d9 cards that support vtf(gf 6 and gf7 cards).
                 * dx9 radeon cards do not support vertex texture fetch. DX10 cards have 128 samplers, and
                 * dx9 is limited to 8 fixed function texture stages and 4 vertex samplers. DX10 does not have
                 * a fixed function pipeline anymore.
                 *
                 * So this is just a check to check that our assumption holds true. If not, write a warning
                 * and reduce the number of vertex samplers or probably disable vertex texture fetch.
                 */
                if(gl_info->max_vertex_samplers &&
                   MAX_TEXTURES + gl_info->max_vertex_samplers > gl_info->max_combined_samplers) {
                    FIXME("OpenGL implementation supports %u vertex samplers and %u total samplers\n",
                          gl_info->max_vertex_samplers, gl_info->max_combined_samplers);
                    FIXME("Expected vertex samplers + MAX_TEXTURES(=8) > combined_samplers\n");
                    if( gl_info->max_combined_samplers > MAX_TEXTURES )
                        gl_info->max_vertex_samplers =
                            gl_info->max_combined_samplers - MAX_TEXTURES;
                    else
                        gl_info->max_vertex_samplers = 0;
                }
            } else {
                gl_info->max_combined_samplers = gl_info->max_fragment_samplers;
            }
            TRACE_(d3d_caps)("Max vertex samplers: %u\n", gl_info->max_vertex_samplers);
            TRACE_(d3d_caps)("Max combined samplers: %u\n", gl_info->max_combined_samplers);
        }
        if (gl_info->supported[ARB_VERTEX_BLEND]) {
            glGetIntegerv(GL_MAX_VERTEX_UNITS_ARB, &gl_max);
            gl_info->max_blends = gl_max;
            TRACE_(d3d_caps)("Max blends: %u\n", gl_info->max_blends);
        }
        if (gl_info->supported[EXT_TEXTURE3D]) {
            glGetIntegerv(GL_MAX_3D_TEXTURE_SIZE_EXT, &gl_max);
            gl_info->max_texture3d_size = gl_max;
            TRACE_(d3d_caps)("Max texture3D size: %d\n", gl_info->max_texture3d_size);
        }
        if (gl_info->supported[EXT_TEXTURE_FILTER_ANISOTROPIC]) {
            glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &gl_max);
            gl_info->max_anisotropy = gl_max;
            TRACE_(d3d_caps)("Max anisotropy: %d\n", gl_info->max_anisotropy);
        }
        if (gl_info->supported[ARB_FRAGMENT_PROGRAM]) {
            gl_info->ps_arb_version = PS_VERSION_11;
            GL_EXTCALL(glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_ENV_PARAMETERS_ARB, &gl_max));
            gl_info->ps_arb_constantsF = gl_max;
            TRACE_(d3d_caps)("Max ARB_FRAGMENT_PROGRAM float constants: %d\n", gl_info->ps_arb_constantsF);
            GL_EXTCALL(glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB, &gl_max));
            gl_info->ps_arb_max_temps = gl_max;
            TRACE_(d3d_caps)("Max ARB_FRAGMENT_PROGRAM native temporaries: %d\n", gl_info->ps_arb_max_temps);
            GL_EXTCALL(glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB, &gl_max));
            gl_info->ps_arb_max_instructions = gl_max;
            TRACE_(d3d_caps)("Max ARB_FRAGMENT_PROGRAM native instructions: %d\n", gl_info->ps_arb_max_instructions);
        }
        if (gl_info->supported[ARB_VERTEX_PROGRAM]) {
            gl_info->vs_arb_version = VS_VERSION_11;
            GL_EXTCALL(glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_ENV_PARAMETERS_ARB, &gl_max));
            gl_info->vs_arb_constantsF = gl_max;
            TRACE_(d3d_caps)("Max ARB_VERTEX_PROGRAM float constants: %d\n", gl_info->vs_arb_constantsF);
            GL_EXTCALL(glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB, &gl_max));
            gl_info->vs_arb_max_temps = gl_max;
            TRACE_(d3d_caps)("Max ARB_VERTEX_PROGRAM native temporaries: %d\n", gl_info->vs_arb_max_temps);
            GL_EXTCALL(glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB, &gl_max));
            gl_info->vs_arb_max_instructions = gl_max;
            TRACE_(d3d_caps)("Max ARB_VERTEX_PROGRAM native instructions: %d\n", gl_info->vs_arb_max_instructions);

            gl_info->arb_vs_offset_limit = test_arb_vs_offset_limit(gl_info);
        }
        if (gl_info->supported[ARB_VERTEX_SHADER]) {
            glGetIntegerv(GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB, &gl_max);
            gl_info->vs_glsl_constantsF = gl_max / 4;
            TRACE_(d3d_caps)("Max ARB_VERTEX_SHADER float constants: %u\n", gl_info->vs_glsl_constantsF);
        }
        if (gl_info->supported[ARB_FRAGMENT_SHADER]) {
            glGetIntegerv(GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB, &gl_max);
            gl_info->ps_glsl_constantsF = gl_max / 4;
            TRACE_(d3d_caps)("Max ARB_FRAGMENT_SHADER float constants: %u\n", gl_info->ps_glsl_constantsF);
            glGetIntegerv(GL_MAX_VARYING_FLOATS_ARB, &gl_max);
            gl_info->max_glsl_varyings = gl_max;
            TRACE_(d3d_caps)("Max GLSL varyings: %u (%u 4 component varyings)\n", gl_max, gl_max / 4);
        }
        if (gl_info->supported[EXT_VERTEX_SHADER]) {
            gl_info->vs_ati_version = VS_VERSION_11;
        }
        if (gl_info->supported[NV_VERTEX_PROGRAM3]) {
            gl_info->vs_nv_version = VS_VERSION_30;
        } else if (gl_info->supported[NV_VERTEX_PROGRAM2]) {
            gl_info->vs_nv_version = VS_VERSION_20;
        } else if (gl_info->supported[NV_VERTEX_PROGRAM1_1]) {
            gl_info->vs_nv_version = VS_VERSION_11;
        } else if (gl_info->supported[NV_VERTEX_PROGRAM]) {
            gl_info->vs_nv_version = VS_VERSION_10;
        }
        if (gl_info->supported[NV_FRAGMENT_PROGRAM2]) {
            gl_info->ps_nv_version = PS_VERSION_30;
        } else if (gl_info->supported[NV_FRAGMENT_PROGRAM]) {
            gl_info->ps_nv_version = PS_VERSION_20;
        }
        if (gl_info->supported[NV_LIGHT_MAX_EXPONENT]) {
            glGetFloatv(GL_MAX_SHININESS_NV, &gl_info->max_shininess);
        } else {
            gl_info->max_shininess = 128.0;
        }
        if (gl_info->supported[ARB_TEXTURE_NON_POWER_OF_TWO]) {
            /* If we have full NP2 texture support, disable GL_ARB_texture_rectangle because we will never use it.
             * This saves a few redundant glDisable calls
             */
            gl_info->supported[ARB_TEXTURE_RECTANGLE] = FALSE;
        }

    }
    checkGLcall("extension detection\n");

    /* In some cases the number of texture stages can be larger than the number
     * of samplers. The GF4 for example can use only 2 samplers (no fragment
     * shaders), but 8 texture stages (register combiners). */
    gl_info->max_sampler_stages = max(gl_info->max_fragment_samplers, gl_info->max_texture_stages);

    /* We can only use ORM_FBO when the hardware supports it. */
    if (wined3d_settings.offscreen_rendering_mode == ORM_FBO && !gl_info->supported[EXT_FRAMEBUFFER_OBJECT]) {
        WARN_(d3d_caps)("GL_EXT_framebuffer_object not supported, falling back to PBuffer offscreen rendering mode.\n");
        wined3d_settings.offscreen_rendering_mode = ORM_PBUFFER;
    }

    /* MRTs are currently only supported when FBOs are used. */
    if (wined3d_settings.offscreen_rendering_mode != ORM_FBO) {
        gl_info->max_buffers = 1;
    }

    /* Below is a list of Nvidia and ATI GPUs. Both vendors have dozens of different GPUs with roughly the same
     * features. In most cases GPUs from a certain family differ in clockspeeds, the amount of video memory and
     * in case of the latest videocards in the number of pixel/vertex pipelines.
     *
     * A Direct3D device object contains the PCI id (vendor + device) of the videocard which is used for
     * rendering. Various games use this information to get a rough estimation of the features of the card
     * and some might use it for enabling 3d effects only on certain types of videocards. In some cases
     * games might even use it to work around bugs which happen on certain videocards/driver combinations.
     * The problem is that OpenGL only exposes a rendering string containing the name of the videocard and
     * not the PCI id.
     *
     * Various games depend on the PCI id, so somehow we need to provide one. A simple option is to parse
     * the renderer string and translate this to the right PCI id. This is a lot of work because there are more
     * than 200 GPUs just for Nvidia. Various cards share the same renderer string, so the amount of code might
     * be 'small' but there are quite a number of exceptions which would make this a pain to maintain.
     * Another way would be to query the PCI id from the operating system (assuming this is the videocard which
     * is used for rendering which is not always the case). This would work but it is not very portable. Second
     * it would not work well in, let's say, a remote X situation in which the amount of 3d features which can be used
     * is limited.
     *
     * As said most games only use the PCI id to get an indication of the capabilities of the card.
     * It doesn't really matter if the given id is the correct one if we return the id of a card with
     * similar 3d features.
     *
     * The code below checks the OpenGL capabilities of a videocard and matches that to a certain level of
     * Direct3D functionality. Once a card passes the Direct3D9 check, we know that the card (in case of Nvidia)
     * is at least a GeforceFX. To give a better estimate we do a basic check on the renderer string but if that
     * won't pass we return a default card. This way is better than maintaining a full card database as even
     * without a full database we can return a card with similar features. Second the size of the database
     * can be made quite small because when you know what type of 3d functionality a card has, you know to which
     * GPU family the GPU must belong. Because of this you only have to check a small part of the renderer string
     * to distinguishes between different models from that family.
     *
     * The code also selects a default amount of video memory which we will use for an estimation of the amount
     * of free texture memory. In case of real D3D the amount of texture memory includes video memory and system
     * memory (to be specific AGP memory or in case of PCIE TurboCache/HyperMemory). We don't know how much
     * system memory can be addressed by the system but we can make a reasonable estimation about the amount of
     * video memory. If the value is slightly wrong it doesn't matter as we didn't include AGP-like memory which
     * makes the amount of addressable memory higher and second OpenGL isn't that critical it moves to system
     * memory behind our backs if really needed.
     * Note that the amount of video memory can be overruled using a registry setting.
     */
    switch (gl_info->gl_vendor) {
        case VENDOR_NVIDIA:
            /* Both the GeforceFX, 6xxx and 7xxx series support D3D9. The last two types have more
             * shader capabilities, so we use the shader capabilities to distinguish between FX and 6xxx/7xxx.
             */
            if(WINE_D3D9_CAPABLE(gl_info) && (gl_info->vs_nv_version == VS_VERSION_30)) {
                /* Geforce8 - highend */
                if (strstr(gl_info->gl_renderer, "8800")) {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_8800GTS;
                    vidmem = 320; /* The 8800GTS uses 320MB, a 8800GTX can have 768MB */
                }
                /* Geforce8 - midend mobile */
                else if(strstr(gl_info->gl_renderer, "8600 M")) {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_8600MGT;
                    vidmem = 512;
                }
                /* Geforce8 - midend */
                else if(strstr(gl_info->gl_renderer, "8600") ||
                        strstr(gl_info->gl_renderer, "8700"))
                {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_8600GT;
                    vidmem = 256;
                }
                /* Geforce8 - lowend */
                else if(strstr(gl_info->gl_renderer, "8300") ||
                        strstr(gl_info->gl_renderer, "8400") ||
                        strstr(gl_info->gl_renderer, "8500"))
                {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_8300GS;
                    vidmem = 128; /* 128-256MB for a 8300, 256-512MB for a 8400 */
                }
                /* Geforce7 - highend */
                else if(strstr(gl_info->gl_renderer, "7800") ||
                        strstr(gl_info->gl_renderer, "7900") ||
                        strstr(gl_info->gl_renderer, "7950") ||
                        strstr(gl_info->gl_renderer, "Quadro FX 4") ||
                        strstr(gl_info->gl_renderer, "Quadro FX 5"))
                {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_7800GT;
                    vidmem = 256; /* A 7800GT uses 256MB while highend 7900 cards can use 512MB */
                }
                /* Geforce7 midend */
                else if(strstr(gl_info->gl_renderer, "7600") ||
                        strstr(gl_info->gl_renderer, "7700")) {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_7600;
                    vidmem = 256; /* The 7600 uses 256-512MB */
                /* Geforce7 lower medium */
                } else if(strstr(gl_info->gl_renderer, "7400")) {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_7400;
                    vidmem = 256; /* The 7400 uses 256-512MB */
                }
                /* Geforce7 lowend */
                else if(strstr(gl_info->gl_renderer, "7300")) {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_7300;
                    vidmem = 256; /* Mac Pros with this card have 256 MB */
                }
                /* Geforce6 highend */
                else if(strstr(gl_info->gl_renderer, "6800"))
                {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_6800;
                    vidmem = 128; /* The 6800 uses 128-256MB, the 7600 uses 256-512MB */
                }
                /* Geforce6 - midend */
                else if(strstr(gl_info->gl_renderer, "6600") ||
                        strstr(gl_info->gl_renderer, "6610") ||
                        strstr(gl_info->gl_renderer, "6700"))
                {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_6600GT;
                    vidmem = 128; /* A 6600GT has 128-256MB */
                }
                /* Geforce6/7 lowend */
                else {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_6200; /* Geforce 6100/6150/6200/7300/7400/7500 */
                    vidmem = 64; /* */
                }
            } else if(WINE_D3D9_CAPABLE(gl_info)) {
                /* GeforceFX - highend */
                if (strstr(gl_info->gl_renderer, "5800") ||
                    strstr(gl_info->gl_renderer, "5900") ||
                    strstr(gl_info->gl_renderer, "5950") ||
                    strstr(gl_info->gl_renderer, "Quadro FX"))
                {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCEFX_5800;
                    vidmem = 256; /* 5800-5900 cards use 256MB */
                }
                /* GeforceFX - midend */
                else if(strstr(gl_info->gl_renderer, "5600") ||
                        strstr(gl_info->gl_renderer, "5650") ||
                        strstr(gl_info->gl_renderer, "5700") ||
                        strstr(gl_info->gl_renderer, "5750"))
                {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCEFX_5600;
                    vidmem = 128; /* A 5600 uses 128-256MB */
                }
                /* GeforceFX - lowend */
                else {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCEFX_5200; /* GeforceFX 5100/5200/5250/5300/5500 */
                    vidmem = 64; /* Normal FX5200 cards use 64-256MB; laptop (non-standard) can have less */
                }
            } else if(WINE_D3D8_CAPABLE(gl_info)) {
                if (strstr(gl_info->gl_renderer, "GeForce4 Ti") || strstr(gl_info->gl_renderer, "Quadro4")) {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE4_TI4200; /* Geforce4 Ti4200/Ti4400/Ti4600/Ti4800, Quadro4 */
                    vidmem = 64; /* Geforce4 Ti cards have 64-128MB */
                }
                else {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE3; /* Geforce3 standard/Ti200/Ti500, Quadro DCC */
                    vidmem = 64; /* Geforce3 cards have 64-128MB */
                }
            } else if(WINE_D3D7_CAPABLE(gl_info)) {
                if (strstr(gl_info->gl_renderer, "GeForce4 MX")) {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE4_MX; /* MX420/MX440/MX460/MX4000 */
                    vidmem = 64; /* Most Geforce4MX GPUs have at least 64MB of memory, some early models had 32MB but most have 64MB or even 128MB */
                }
                else if(strstr(gl_info->gl_renderer, "GeForce2 MX") || strstr(gl_info->gl_renderer, "Quadro2 MXR")) {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE2_MX; /* Geforce2 standard/MX100/MX200/MX400, Quadro2 MXR */
                    vidmem = 32; /* Geforce2MX GPUs have 32-64MB of video memory */
                }
                else if(strstr(gl_info->gl_renderer, "GeForce2") || strstr(gl_info->gl_renderer, "Quadro2")) {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE2; /* Geforce2 GTS/Pro/Ti/Ultra, Quadro2 */
                    vidmem = 32; /* Geforce2 GPUs have 32-64MB of video memory */
                }
                else {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE; /* Geforce 256/DDR, Quadro */
                    vidmem = 32; /* Most Geforce1 cards have 32MB, there are also some rare 16 and 64MB (Dell) models */
                }
            } else {
                if (strstr(gl_info->gl_renderer, "TNT2")) {
                    gl_info->gl_card = CARD_NVIDIA_RIVA_TNT2; /* Riva TNT2 standard/M64/Pro/Ultra */
                    vidmem = 32; /* Most TNT2 boards have 32MB, though there are 16MB boards too */
                }
                else {
                    gl_info->gl_card = CARD_NVIDIA_RIVA_TNT; /* Riva TNT, Vanta */
                    vidmem = 16; /* Most TNT boards have 16MB, some rare models have 8MB */
                }
            }
            break;
        case VENDOR_ATI:
            if(WINE_D3D9_CAPABLE(gl_info)) {
                /* Radeon R6xx HD2900 - highend */
                if (strstr(gl_info->gl_renderer, "HD 2900")) {
                    gl_info->gl_card = CARD_ATI_RADEON_HD2900;
                    vidmem = 512; /* HD2900 uses 512-1024MB */
                }
                /* Radeon R6xx HD2600- midend */
                else if (strstr(gl_info->gl_renderer, "HD 2600")) {
                    gl_info->gl_card = CARD_ATI_RADEON_HD2600;
                    vidmem = 256; /* HD2600 uses 256-512MB */
                }
                /* Radeon R6xx HD2300/HD2400 - lowend */
                else if (strstr(gl_info->gl_renderer, "HD 2300") ||
                         strstr(gl_info->gl_renderer, "HD 2400"))
                {
                    gl_info->gl_card = CARD_ATI_RADEON_HD2300;
                    vidmem = 128; /* HD2300 uses at least 128MB, HD2400 uses 256MB */
                }
                /* Radeon R5xx */
                else if (strstr(gl_info->gl_renderer, "X1600") ||
                         strstr(gl_info->gl_renderer, "X1650") ||
                         strstr(gl_info->gl_renderer, "X1800") ||
                         strstr(gl_info->gl_renderer, "X1900") ||
                         strstr(gl_info->gl_renderer, "X1950"))
                {
                    gl_info->gl_card = CARD_ATI_RADEON_X1600;
                    vidmem = 128; /* X1600 uses 128-256MB, >=X1800 uses 256MB */
                }
                /* Radeon R4xx + X1300/X1400/X1450/X1550/X2300 (lowend R5xx) */
                else if(strstr(gl_info->gl_renderer, "X700") ||
                        strstr(gl_info->gl_renderer, "X800") ||
                        strstr(gl_info->gl_renderer, "X850") ||
                        strstr(gl_info->gl_renderer, "X1300") ||
                        strstr(gl_info->gl_renderer, "X1400") ||
                        strstr(gl_info->gl_renderer, "X1450") ||
                        strstr(gl_info->gl_renderer, "X1550"))
                {
                    gl_info->gl_card = CARD_ATI_RADEON_X700;
                    vidmem = 128; /* x700/x8*0 use 128-256MB, >=x1300 128-512MB */
                }
                /* Radeon R3xx */ 
                else {
                    gl_info->gl_card = CARD_ATI_RADEON_9500; /* Radeon 9500/9550/9600/9700/9800/X300/X550/X600 */
                    vidmem = 64; /* Radeon 9500 uses 64MB, higher models use up to 256MB */
                }
            } else if(WINE_D3D8_CAPABLE(gl_info)) {
                gl_info->gl_card = CARD_ATI_RADEON_8500; /* Radeon 8500/9000/9100/9200/9300 */
                vidmem = 64; /* 8500/9000 cards use mostly 64MB, though there are 32MB and 128MB models */
            } else if(WINE_D3D7_CAPABLE(gl_info)) {
                gl_info->gl_card = CARD_ATI_RADEON_7200; /* Radeon 7000/7100/7200/7500 */
                vidmem = 32; /* There are models with up to 64MB */
            } else {
                gl_info->gl_card = CARD_ATI_RAGE_128PRO;
                vidmem = 16; /* There are 16-32MB models */
            }
            break;
        case VENDOR_INTEL:
            if (strstr(gl_info->gl_renderer, "GMA 950")) {
                /* MacOS calls the card GMA 950, but everywhere else the PCI ID is named 945GM */
                gl_info->gl_card = CARD_INTEL_I945GM;
                vidmem = 64;
            } else if (strstr(gl_info->gl_renderer, "915GM")) {
                gl_info->gl_card = CARD_INTEL_I915GM;
            } else if (strstr(gl_info->gl_renderer, "915G")) {
                gl_info->gl_card = CARD_INTEL_I915G;
            } else if (strstr(gl_info->gl_renderer, "865G")) {
                gl_info->gl_card = CARD_INTEL_I865G;
            } else if (strstr(gl_info->gl_renderer, "855G")) {
                gl_info->gl_card = CARD_INTEL_I855G;
            } else if (strstr(gl_info->gl_renderer, "830G")) {
                gl_info->gl_card = CARD_INTEL_I830G;
            } else {
                gl_info->gl_card = CARD_INTEL_I915G;
            }
            break;
        case VENDOR_MESA:
        case VENDOR_WINE:
        default:
            /* Default to generic Nvidia hardware based on the supported OpenGL extensions. The choice 
             * for Nvidia was because the hardware and drivers they make are of good quality. This makes
             * them a good generic choice.
             */
            gl_info->gl_vendor = VENDOR_NVIDIA;
            if(WINE_D3D9_CAPABLE(gl_info))
                gl_info->gl_card = CARD_NVIDIA_GEFORCEFX_5600;
            else if(WINE_D3D8_CAPABLE(gl_info))
                gl_info->gl_card = CARD_NVIDIA_GEFORCE3;
            else if(WINE_D3D7_CAPABLE(gl_info))
                gl_info->gl_card = CARD_NVIDIA_GEFORCE;
            else if(WINE_D3D6_CAPABLE(gl_info))
                gl_info->gl_card = CARD_NVIDIA_RIVA_TNT;
            else
                gl_info->gl_card = CARD_NVIDIA_RIVA_128;
    }
    TRACE_(d3d_caps)("FOUND (fake) card: 0x%x (vendor id), 0x%x (device id)\n", gl_info->gl_vendor, gl_info->gl_card);

    /* If we have an estimate use it, else default to 64MB;  */
    if(vidmem)
        gl_info->vidmem = vidmem*1024*1024; /* convert from MBs to bytes */
    else
        gl_info->vidmem = WINE_DEFAULT_VIDMEM;

    /* Load all the lookup tables
    TODO: It may be a good idea to make minLookup and maxLookup const and populate them in wined3d_private.h where they are declared */
    minLookup[WINELOOKUP_WARPPARAM] = WINED3DTADDRESS_WRAP;
    maxLookup[WINELOOKUP_WARPPARAM] = WINED3DTADDRESS_MIRRORONCE;

    minLookup[WINELOOKUP_MAGFILTER] = WINED3DTEXF_NONE;
    maxLookup[WINELOOKUP_MAGFILTER] = WINED3DTEXF_ANISOTROPIC;


    for (i = 0; i < MAX_LOOKUPS; i++) {
        stateLookup[i] = HeapAlloc(GetProcessHeap(), 0, sizeof(*stateLookup[i]) * (1 + maxLookup[i] - minLookup[i]) );
    }

    stateLookup[WINELOOKUP_WARPPARAM][WINED3DTADDRESS_WRAP   - minLookup[WINELOOKUP_WARPPARAM]] = GL_REPEAT;
    stateLookup[WINELOOKUP_WARPPARAM][WINED3DTADDRESS_CLAMP  - minLookup[WINELOOKUP_WARPPARAM]] = GL_CLAMP_TO_EDGE;
    stateLookup[WINELOOKUP_WARPPARAM][WINED3DTADDRESS_BORDER - minLookup[WINELOOKUP_WARPPARAM]] =
             gl_info->supported[ARB_TEXTURE_BORDER_CLAMP] ? GL_CLAMP_TO_BORDER_ARB : GL_REPEAT;
    stateLookup[WINELOOKUP_WARPPARAM][WINED3DTADDRESS_BORDER - minLookup[WINELOOKUP_WARPPARAM]] =
             gl_info->supported[ARB_TEXTURE_BORDER_CLAMP] ? GL_CLAMP_TO_BORDER_ARB : GL_REPEAT;
    stateLookup[WINELOOKUP_WARPPARAM][WINED3DTADDRESS_MIRROR - minLookup[WINELOOKUP_WARPPARAM]] =
             gl_info->supported[ARB_TEXTURE_MIRRORED_REPEAT] ? GL_MIRRORED_REPEAT_ARB : GL_REPEAT;
    stateLookup[WINELOOKUP_WARPPARAM][WINED3DTADDRESS_MIRRORONCE - minLookup[WINELOOKUP_WARPPARAM]] =
             gl_info->supported[ATI_TEXTURE_MIRROR_ONCE] ? GL_MIRROR_CLAMP_TO_EDGE_ATI : GL_REPEAT;

    stateLookup[WINELOOKUP_MAGFILTER][WINED3DTEXF_NONE        - minLookup[WINELOOKUP_MAGFILTER]]  = GL_NEAREST;
    stateLookup[WINELOOKUP_MAGFILTER][WINED3DTEXF_POINT       - minLookup[WINELOOKUP_MAGFILTER]] = GL_NEAREST;
    stateLookup[WINELOOKUP_MAGFILTER][WINED3DTEXF_LINEAR      - minLookup[WINELOOKUP_MAGFILTER]] = GL_LINEAR;
    stateLookup[WINELOOKUP_MAGFILTER][WINED3DTEXF_ANISOTROPIC - minLookup[WINELOOKUP_MAGFILTER]] =
             gl_info->supported[EXT_TEXTURE_FILTER_ANISOTROPIC] ? GL_LINEAR : GL_NEAREST;


    minMipLookup[WINED3DTEXF_NONE][WINED3DTEXF_NONE]     = GL_LINEAR;
    minMipLookup[WINED3DTEXF_NONE][WINED3DTEXF_POINT]    = GL_LINEAR;
    minMipLookup[WINED3DTEXF_NONE][WINED3DTEXF_LINEAR]   = GL_LINEAR;
    minMipLookup[WINED3DTEXF_POINT][WINED3DTEXF_NONE]    = GL_NEAREST;
    minMipLookup[WINED3DTEXF_POINT][WINED3DTEXF_POINT]   = GL_NEAREST_MIPMAP_NEAREST;
    minMipLookup[WINED3DTEXF_POINT][WINED3DTEXF_LINEAR]  = GL_NEAREST_MIPMAP_LINEAR;
    minMipLookup[WINED3DTEXF_LINEAR][WINED3DTEXF_NONE]   = GL_LINEAR;
    minMipLookup[WINED3DTEXF_LINEAR][WINED3DTEXF_POINT]  = GL_LINEAR_MIPMAP_NEAREST;
    minMipLookup[WINED3DTEXF_LINEAR][WINED3DTEXF_LINEAR] = GL_LINEAR_MIPMAP_LINEAR;
    minMipLookup[WINED3DTEXF_ANISOTROPIC][WINED3DTEXF_NONE]   = gl_info->supported[EXT_TEXTURE_FILTER_ANISOTROPIC] ?
    GL_LINEAR_MIPMAP_LINEAR : GL_LINEAR;
    minMipLookup[WINED3DTEXF_ANISOTROPIC][WINED3DTEXF_POINT]  = gl_info->supported[EXT_TEXTURE_FILTER_ANISOTROPIC] ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR;
    minMipLookup[WINED3DTEXF_ANISOTROPIC][WINED3DTEXF_LINEAR] = gl_info->supported[EXT_TEXTURE_FILTER_ANISOTROPIC] ? GL_LINEAR_MIPMAP_LINEAR : GL_LINEAR;

/* TODO: config lookups */

    /* Make sure there's an active HDC else the WGL extensions will fail */
    hdc = pwglGetCurrentDC();
    if (hdc) {
        WGL_Extensions = GL_EXTCALL(wglGetExtensionsStringARB(hdc));
        TRACE_(d3d_caps)("WGL_Extensions reported:\n");

        if (NULL == WGL_Extensions) {
            ERR("   WGL_Extensions returns NULL\n");
        } else {
            while (*WGL_Extensions != 0x00) {
                const char *Start;
                char ThisExtn[256];
                size_t len;

                while (isspace(*WGL_Extensions)) WGL_Extensions++;
                Start = WGL_Extensions;
                while (!isspace(*WGL_Extensions) && *WGL_Extensions != 0x00) {
                    WGL_Extensions++;
                }

                len = WGL_Extensions - Start;
                if (len == 0 || len >= sizeof(ThisExtn))
                    continue;

                memcpy(ThisExtn, Start, len);
                ThisExtn[len] = '\0';
                TRACE_(d3d_caps)("- %s\n", ThisExtn);

                if (!strcmp(ThisExtn, "WGL_ARB_pbuffer")) {
                    gl_info->supported[WGL_ARB_PBUFFER] = TRUE;
                    TRACE_(d3d_caps)("FOUND: WGL_ARB_pbuffer support\n");
                }
            }
        }
    }
    LEAVE_GL();

    return return_value;
}
#undef GLINFO_LOCATION

/**********************************************************
 * IWineD3D implementation follows
 **********************************************************/

static UINT     WINAPI IWineD3DImpl_GetAdapterCount (IWineD3D *iface) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;

    TRACE_(d3d_caps)("(%p): Reporting %d adapters\n", This, numAdapters);
    return numAdapters;
}

static HRESULT  WINAPI IWineD3DImpl_RegisterSoftwareDevice(IWineD3D *iface, void* pInitializeFunction) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    FIXME("(%p)->(%p): stub\n", This, pInitializeFunction);
    return WINED3D_OK;
}

static HMONITOR WINAPI IWineD3DImpl_GetAdapterMonitor(IWineD3D *iface, UINT Adapter) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;

    if (Adapter >= IWineD3DImpl_GetAdapterCount(iface)) {
        return NULL;
    }

    TRACE_(d3d_caps)("(%p)->(%d)\n", This, Adapter);
    return MonitorFromPoint(Adapters[Adapter].monitorPoint, MONITOR_DEFAULTTOPRIMARY);
}

/* FIXME: GetAdapterModeCount and EnumAdapterModes currently only returns modes
     of the same bpp but different resolutions                                  */

/* Note: dx9 supplies a format. Calls from d3d8 supply WINED3DFMT_UNKNOWN */
static UINT     WINAPI IWineD3DImpl_GetAdapterModeCount(IWineD3D *iface, UINT Adapter, WINED3DFORMAT Format) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    TRACE_(d3d_caps)("(%p}->(Adapter: %d, Format: %s)\n", This, Adapter, debug_d3dformat(Format));

    if (Adapter >= IWineD3D_GetAdapterCount(iface)) {
        return 0;
    }

    /* TODO: Store modes per adapter and read it from the adapter structure */
    if (Adapter == 0) { /* Display */
        int i = 0;
        int j = 0;

        if (!DEBUG_SINGLE_MODE) {
            DEVMODEW DevModeW;

            ZeroMemory(&DevModeW, sizeof(DevModeW));
            DevModeW.dmSize = sizeof(DevModeW);
            while (EnumDisplaySettingsExW(NULL, j, &DevModeW, 0)) {
                j++;
                switch (Format)
                {
                    case WINED3DFMT_UNKNOWN:
                        /* This is for D3D8, do not enumerate P8 here */
                        if (DevModeW.dmBitsPerPel == 32 ||
                            DevModeW.dmBitsPerPel == 16) i++;
                        break;
                    case WINED3DFMT_X8R8G8B8:
                        if (DevModeW.dmBitsPerPel == 32) i++;
                        break;
                    case WINED3DFMT_R5G6B5:
                        if (DevModeW.dmBitsPerPel == 16) i++;
                        break;
                    case WINED3DFMT_P8:
                        if (DevModeW.dmBitsPerPel == 8) i++;
                        break;
                    default:
                        /* Skip other modes as they do not match the requested format */
                        break;
                }
            }
        } else {
            i = 1;
            j = 1;
        }

        TRACE_(d3d_caps)("(%p}->(Adapter: %d) => %d (out of %d)\n", This, Adapter, i, j);
        return i;
    } else {
        FIXME_(d3d_caps)("Adapter not primary display\n");
    }
    return 0;
}

/* Note: dx9 supplies a format. Calls from d3d8 supply WINED3DFMT_UNKNOWN */
static HRESULT WINAPI IWineD3DImpl_EnumAdapterModes(IWineD3D *iface, UINT Adapter, WINED3DFORMAT Format, UINT Mode, WINED3DDISPLAYMODE* pMode) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    TRACE_(d3d_caps)("(%p}->(Adapter:%d, mode:%d, pMode:%p, format:%s)\n", This, Adapter, Mode, pMode, debug_d3dformat(Format));

    /* Validate the parameters as much as possible */
    if (NULL == pMode ||
        Adapter >= IWineD3DImpl_GetAdapterCount(iface) ||
        Mode    >= IWineD3DImpl_GetAdapterModeCount(iface, Adapter, Format)) {
        return WINED3DERR_INVALIDCALL;
    }

    /* TODO: Store modes per adapter and read it from the adapter structure */
    if (Adapter == 0 && !DEBUG_SINGLE_MODE) { /* Display */
        DEVMODEW DevModeW;
        int ModeIdx = 0;
        int i = 0;
        int j = 0;

        ZeroMemory(&DevModeW, sizeof(DevModeW));
        DevModeW.dmSize = sizeof(DevModeW);

        /* If we are filtering to a specific format (D3D9), then need to skip
           all unrelated modes, but if mode is irrelevant (D3D8), then we can
           just count through the ones with valid bit depths */
        while ((i<=Mode) && EnumDisplaySettingsExW(NULL, j++, &DevModeW, 0)) {
            switch (Format)
            {
                case WINED3DFMT_UNKNOWN:
                    /* This is D3D8. Do not enumerate P8 here */
                    if (DevModeW.dmBitsPerPel == 32 ||
                        DevModeW.dmBitsPerPel == 16) i++;
                    break;
                case WINED3DFMT_X8R8G8B8:
                    if (DevModeW.dmBitsPerPel == 32) i++;
                    break;
                case WINED3DFMT_R5G6B5:
                    if (DevModeW.dmBitsPerPel == 16) i++;
                    break;
                case WINED3DFMT_P8:
                    if (DevModeW.dmBitsPerPel == 8) i++;
                    break;
                default:
                    /* Modes that don't match what we support can get an early-out */
                    TRACE_(d3d_caps)("Searching for %s, returning D3DERR_INVALIDCALL\n", debug_d3dformat(Format));
                    return WINED3DERR_INVALIDCALL;
            }
        }

        if (i == 0) {
            TRACE_(d3d_caps)("No modes found for format (%x - %s)\n", Format, debug_d3dformat(Format));
            return WINED3DERR_INVALIDCALL;
        }
        ModeIdx = j - 1;

        /* Now get the display mode via the calculated index */
        if (EnumDisplaySettingsExW(NULL, ModeIdx, &DevModeW, 0)) {
            pMode->Width        = DevModeW.dmPelsWidth;
            pMode->Height       = DevModeW.dmPelsHeight;
            pMode->RefreshRate  = WINED3DADAPTER_DEFAULT;
            if (DevModeW.dmFields & DM_DISPLAYFREQUENCY)
                pMode->RefreshRate = DevModeW.dmDisplayFrequency;

            if (Format == WINED3DFMT_UNKNOWN) {
                pMode->Format = pixelformat_for_depth(DevModeW.dmBitsPerPel);
            } else {
                pMode->Format = Format;
            }
        } else {
            TRACE_(d3d_caps)("Requested mode out of range %d\n", Mode);
            return WINED3DERR_INVALIDCALL;
        }

        TRACE_(d3d_caps)("W %d H %d rr %d fmt (%x - %s) bpp %u\n", pMode->Width, pMode->Height,
                pMode->RefreshRate, pMode->Format, debug_d3dformat(pMode->Format),
                DevModeW.dmBitsPerPel);

    } else if (DEBUG_SINGLE_MODE) {
        /* Return one setting of the format requested */
        if (Mode > 0) return WINED3DERR_INVALIDCALL;
        pMode->Width        = 800;
        pMode->Height       = 600;
        pMode->RefreshRate  = 60;
        pMode->Format       = (Format == WINED3DFMT_UNKNOWN) ? WINED3DFMT_X8R8G8B8 : Format;
    } else {
        FIXME_(d3d_caps)("Adapter not primary display\n");
    }

    return WINED3D_OK;
}

static HRESULT WINAPI IWineD3DImpl_GetAdapterDisplayMode(IWineD3D *iface, UINT Adapter, WINED3DDISPLAYMODE* pMode) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    TRACE_(d3d_caps)("(%p}->(Adapter: %d, pMode: %p)\n", This, Adapter, pMode);

    if (NULL == pMode ||
        Adapter >= IWineD3D_GetAdapterCount(iface)) {
        return WINED3DERR_INVALIDCALL;
    }

    if (Adapter == 0) { /* Display */
        int bpp = 0;
        DEVMODEW DevModeW;

        ZeroMemory(&DevModeW, sizeof(DevModeW));
        DevModeW.dmSize = sizeof(DevModeW);

        EnumDisplaySettingsExW(NULL, ENUM_CURRENT_SETTINGS, &DevModeW, 0);
        pMode->Width        = DevModeW.dmPelsWidth;
        pMode->Height       = DevModeW.dmPelsHeight;
        bpp                 = DevModeW.dmBitsPerPel;
        pMode->RefreshRate  = WINED3DADAPTER_DEFAULT;
        if (DevModeW.dmFields&DM_DISPLAYFREQUENCY)
        {
            pMode->RefreshRate = DevModeW.dmDisplayFrequency;
        }

        pMode->Format = pixelformat_for_depth(bpp);
    } else {
        FIXME_(d3d_caps)("Adapter not primary display\n");
    }

    TRACE_(d3d_caps)("returning w:%d, h:%d, ref:%d, fmt:%s\n", pMode->Width,
          pMode->Height, pMode->RefreshRate, debug_d3dformat(pMode->Format));
    return WINED3D_OK;
}

/* NOTE: due to structure differences between dx8 and dx9 D3DADAPTER_IDENTIFIER,
   and fields being inserted in the middle, a new structure is used in place    */
static HRESULT WINAPI IWineD3DImpl_GetAdapterIdentifier(IWineD3D *iface, UINT Adapter, DWORD Flags,
                                                   WINED3DADAPTER_IDENTIFIER* pIdentifier) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;

    TRACE_(d3d_caps)("(%p}->(Adapter: %d, Flags: %x, pId=%p)\n", This, Adapter, Flags, pIdentifier);

    if (Adapter >= IWineD3D_GetAdapterCount(iface)) {
        return WINED3DERR_INVALIDCALL;
    }

    /* Return the information requested */
    TRACE_(d3d_caps)("device/Vendor Name and Version detection using FillGLCaps\n");
    strcpy(pIdentifier->Driver, Adapters[Adapter].driver);
    strcpy(pIdentifier->Description, Adapters[Adapter].description);

    /* Note dx8 doesn't supply a DeviceName */
    if (NULL != pIdentifier->DeviceName) strcpy(pIdentifier->DeviceName, "\\\\.\\DISPLAY"); /* FIXME: May depend on desktop? */
    pIdentifier->DriverVersion->u.HighPart = Adapters[Adapter].gl_info.driver_version_hipart;
    pIdentifier->DriverVersion->u.LowPart = Adapters[Adapter].gl_info.driver_version;
    *(pIdentifier->VendorId) = Adapters[Adapter].gl_info.gl_vendor;
    *(pIdentifier->DeviceId) = Adapters[Adapter].gl_info.gl_card;
    *(pIdentifier->SubSysId) = 0;
    *(pIdentifier->Revision) = 0;
    *pIdentifier->DeviceIdentifier = IID_D3DDEVICE_D3DUID;

    if (Flags & WINED3DENUM_NO_WHQL_LEVEL) {
        *(pIdentifier->WHQLLevel) = 0;
    } else {
        *(pIdentifier->WHQLLevel) = 1;
    }

    return WINED3D_OK;
}

static BOOL IWineD3DImpl_IsPixelFormatCompatibleWithRenderFmt(const WineD3D_PixelFormat *cfg, WINED3DFORMAT Format) {
    short redSize, greenSize, blueSize, alphaSize, colorBits;

    if(!cfg)
        return FALSE;

    if(cfg->iPixelType == WGL_TYPE_RGBA_ARB) { /* Integer RGBA formats */
        if(!getColorBits(Format, &redSize, &greenSize, &blueSize, &alphaSize, &colorBits)) {
            ERR("Unable to check compatibility for Format=%s\n", debug_d3dformat(Format));
            return FALSE;
        }

        if(cfg->redSize < redSize)
            return FALSE;

        if(cfg->greenSize < greenSize)
            return FALSE;

        if(cfg->blueSize < blueSize)
            return FALSE;

        if(cfg->alphaSize < alphaSize)
            return FALSE;

        return TRUE;
    } else if(cfg->iPixelType == WGL_TYPE_RGBA_FLOAT_ARB) { /* Float RGBA formats; TODO: WGL_NV_float_buffer */
        if(Format == WINED3DFMT_R16F)
            return (cfg->redSize == 16 && cfg->greenSize == 0 && cfg->blueSize == 0 && cfg->alphaSize == 0);
        if(Format == WINED3DFMT_G16R16F)
            return (cfg->redSize == 16 && cfg->greenSize == 16 && cfg->blueSize == 0 && cfg->alphaSize == 0);
        if(Format == WINED3DFMT_A16B16G16R16F)
            return (cfg->redSize == 16 && cfg->greenSize == 16 && cfg->blueSize == 16 && cfg->alphaSize == 16);
        if(Format == WINED3DFMT_R32F)
            return (cfg->redSize == 32 && cfg->greenSize == 0 && cfg->blueSize == 0 && cfg->alphaSize == 0);
        if(Format == WINED3DFMT_G32R32F)
            return (cfg->redSize == 32 && cfg->greenSize == 32 && cfg->blueSize == 0 && cfg->alphaSize == 0);
        if(Format == WINED3DFMT_A32B32G32R32F)
            return (cfg->redSize == 32 && cfg->greenSize == 32 && cfg->blueSize == 32 && cfg->alphaSize == 32);
    } else {
        /* Probably a color index mode */
        return FALSE;
    }

    return FALSE;
}

static BOOL IWineD3DImpl_IsPixelFormatCompatibleWithDepthFmt(const WineD3D_PixelFormat *cfg, WINED3DFORMAT Format) {
    short depthSize, stencilSize;
    BOOL lockable = FALSE;

    if(!cfg)
        return FALSE;

    if(!getDepthStencilBits(Format, &depthSize, &stencilSize)) {
        ERR("Unable to check compatibility for Format=%s\n", debug_d3dformat(Format));
        return FALSE;
    }

    if((Format == WINED3DFMT_D16_LOCKABLE) || (Format == WINED3DFMT_D32F_LOCKABLE))
        lockable = TRUE;

    /* On some modern cards like the Geforce8/9 GLX doesn't offer some dephthstencil formats which D3D9 reports.
     * We can safely report 'compatible' formats (e.g. D24 can be used for D16) as long as we aren't dealing with
     * a lockable format. This also helps D3D <= 7 as they expect D16 which isn't offered without this on Geforce8 cards. */
    if(!(cfg->depthSize == depthSize || (!lockable && cfg->depthSize > depthSize)))
        return FALSE;

    if(cfg->stencilSize != stencilSize)
        return FALSE;

    return TRUE;
}

static HRESULT WINAPI IWineD3DImpl_CheckDepthStencilMatch(IWineD3D *iface, UINT Adapter, WINED3DDEVTYPE DeviceType,
                                                   WINED3DFORMAT AdapterFormat,
                                                   WINED3DFORMAT RenderTargetFormat,
                                                   WINED3DFORMAT DepthStencilFormat) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    int nCfgs;
    WineD3D_PixelFormat *cfgs;
    int it;

    WARN_(d3d_caps)("(%p)-> (STUB) (Adptr:%d, DevType:(%x,%s), AdptFmt:(%x,%s), RendrTgtFmt:(%x,%s), DepthStencilFmt:(%x,%s))\n",
           This, Adapter,
           DeviceType, debug_d3ddevicetype(DeviceType),
           AdapterFormat, debug_d3dformat(AdapterFormat),
           RenderTargetFormat, debug_d3dformat(RenderTargetFormat),
           DepthStencilFormat, debug_d3dformat(DepthStencilFormat));

    if (Adapter >= IWineD3D_GetAdapterCount(iface)) {
        TRACE("(%p) Failed: Atapter (%u) higher than supported adapters (%u) returning WINED3DERR_INVALIDCALL\n", This, Adapter, IWineD3D_GetAdapterCount(iface));
        return WINED3DERR_INVALIDCALL;
    }

    cfgs = Adapters[Adapter].cfgs;
    nCfgs = Adapters[Adapter].nCfgs;
    for (it = 0; it < nCfgs; ++it) {
        if (IWineD3DImpl_IsPixelFormatCompatibleWithRenderFmt(&cfgs[it], RenderTargetFormat)) {
            if (IWineD3DImpl_IsPixelFormatCompatibleWithDepthFmt(&cfgs[it], DepthStencilFormat)) {
                TRACE_(d3d_caps)("(%p) : Formats matched\n", This);
                return WINED3D_OK;
            }
        }
    }
    WARN_(d3d_caps)("unsupported format pair: %s and %s\n", debug_d3dformat(RenderTargetFormat), debug_d3dformat(DepthStencilFormat));

    return WINED3DERR_NOTAVAILABLE;
}

static HRESULT WINAPI IWineD3DImpl_CheckDeviceMultiSampleType(IWineD3D *iface, UINT Adapter, WINED3DDEVTYPE DeviceType, 
                                                       WINED3DFORMAT SurfaceFormat,
                                                       BOOL Windowed, WINED3DMULTISAMPLE_TYPE MultiSampleType, DWORD*   pQualityLevels) {

    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    TRACE_(d3d_caps)("(%p)-> (STUB) (Adptr:%d, DevType:(%x,%s), SurfFmt:(%x,%s), Win?%d, MultiSamp:%x, pQual:%p)\n",
          This,
          Adapter,
          DeviceType, debug_d3ddevicetype(DeviceType),
          SurfaceFormat, debug_d3dformat(SurfaceFormat),
          Windowed,
          MultiSampleType,
          pQualityLevels);

    if (Adapter >= IWineD3D_GetAdapterCount(iface)) {
        return WINED3DERR_INVALIDCALL;
    }

    /* TODO: Store in Adapter structure */
    if (pQualityLevels != NULL) {
        static int s_single_shot = 0;
        if (!s_single_shot) {
            FIXME("Quality levels unsupported at present\n");
            s_single_shot = 1;
        }
        *pQualityLevels = 1; /* Guess at a value! */
    }

    if (WINED3DMULTISAMPLE_NONE == MultiSampleType) return WINED3D_OK;
    return WINED3DERR_NOTAVAILABLE;
}

static HRESULT WINAPI IWineD3DImpl_CheckDeviceType(IWineD3D *iface, UINT Adapter, WINED3DDEVTYPE DeviceType,
                                            WINED3DFORMAT DisplayFormat, WINED3DFORMAT BackBufferFormat, BOOL Windowed) {

    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    HRESULT hr = WINED3DERR_NOTAVAILABLE;
    UINT nmodes;

    TRACE_(d3d_caps)("(%p)-> (STUB) (Adptr:%d, CheckType:(%x,%s), DispFmt:(%x,%s), BackBuf:(%x,%s), Win?%d): stub\n",
          This,
          Adapter,
          DeviceType, debug_d3ddevicetype(DeviceType),
          DisplayFormat, debug_d3dformat(DisplayFormat),
          BackBufferFormat, debug_d3dformat(BackBufferFormat),
          Windowed);

    if (Adapter >= IWineD3D_GetAdapterCount(iface)) {
        WARN_(d3d_caps)("Adapter >= IWineD3D_GetAdapterCount(iface), returning WINED3DERR_INVALIDCALL\n");
        return WINED3DERR_INVALIDCALL;
    }

    /* The task of this function is to check whether a certain display / backbuffer format
     * combination is available on the given adapter. In fullscreen mode microsoft specified
     * that the display format shouldn't provide alpha and that ignoring alpha the backbuffer
     * and display format should match exactly.
     * In windowed mode format conversion can occur and this depends on the driver. When format
     * conversion is done, this function should nevertheless fail and applications need to use
     * CheckDeviceFormatConversion.
     * At the moment we assume that fullscreen and windowed have the same capabilities */

    /* There are only 4 display formats */
    if(!((DisplayFormat == WINED3DFMT_R5G6B5) ||
         (DisplayFormat == WINED3DFMT_X1R5G5B5) ||
         (DisplayFormat == WINED3DFMT_X8R8G8B8) ||
         (DisplayFormat == WINED3DFMT_A2R10G10B10)))
    {
        TRACE_(d3d_caps)("Format %s unsupported as display format\n", debug_d3dformat(DisplayFormat));
        return WINED3DERR_NOTAVAILABLE;
    }

    /* If the requested DisplayFormat is not available, don't continue */
    nmodes = IWineD3DImpl_GetAdapterModeCount(iface, Adapter, DisplayFormat);
    if(!nmodes) {
        TRACE_(d3d_caps)("No available modes for display format %s\n", debug_d3dformat(DisplayFormat));
        return WINED3DERR_NOTAVAILABLE;
    }

    /* Windowed mode allows you to specify WINED3DFMT_UNKNOWN for the backbufferformat, it means 'reuse' the display format for the backbuffer */
    if(!Windowed && BackBufferFormat == WINED3DFMT_UNKNOWN) {
        TRACE_(d3d_caps)("BackBufferFormat WINED3FMT_UNKNOWN not available in Windowed mode\n");
        return WINED3DERR_NOTAVAILABLE;
    }

    /* In FULLSCREEN mode R5G6B5 can only be mixed with backbuffer format R5G6B5 */
    if( (DisplayFormat == WINED3DFMT_R5G6B5) && (BackBufferFormat != WINED3DFMT_R5G6B5) ) {
        TRACE_(d3d_caps)("Unsupported display/backbuffer format combination %s/%s\n", debug_d3dformat(DisplayFormat), debug_d3dformat(BackBufferFormat));
        return WINED3DERR_NOTAVAILABLE;
    }

    /* In FULLSCREEN mode X1R5G5B5 can only be mixed with backbuffer format *1R5G5B5 */
    if( (DisplayFormat == WINED3DFMT_X1R5G5B5) && !((BackBufferFormat == WINED3DFMT_X1R5G5B5) || (BackBufferFormat == WINED3DFMT_A1R5G5B5)) ) {
        TRACE_(d3d_caps)("Unsupported display/backbuffer format combination %s/%s\n", debug_d3dformat(DisplayFormat), debug_d3dformat(BackBufferFormat));
        return WINED3DERR_NOTAVAILABLE;
    }

    /* In FULLSCREEN mode X8R8G8B8 can only be mixed with backbuffer format *8R8G8B8 */
    if( (DisplayFormat == WINED3DFMT_X8R8G8B8) && !((BackBufferFormat == WINED3DFMT_X8R8G8B8) || (BackBufferFormat == WINED3DFMT_A8R8G8B8)) ) {
        TRACE_(d3d_caps)("Unsupported display/backbuffer format combination %s/%s\n", debug_d3dformat(DisplayFormat), debug_d3dformat(BackBufferFormat));
        return WINED3DERR_NOTAVAILABLE;
    }

    /* A2R10G10B10 is only allowed in fullscreen mode and it can only be mixed with backbuffer format A2R10G10B10 */
    if( (DisplayFormat == WINED3DFMT_A2R10G10B10) && ((BackBufferFormat != WINED3DFMT_A2R10G10B10) || Windowed)) {
        TRACE_(d3d_caps)("Unsupported display/backbuffer format combination %s/%s\n", debug_d3dformat(DisplayFormat), debug_d3dformat(BackBufferFormat));
        return WINED3DERR_NOTAVAILABLE;
    }

    /* Use CheckDeviceFormat to see if the BackBufferFormat is usable with the given DisplayFormat */
    hr = IWineD3DImpl_CheckDeviceFormat(iface, Adapter, DeviceType, DisplayFormat, WINED3DUSAGE_RENDERTARGET, WINED3DRTYPE_SURFACE, BackBufferFormat);
    if(FAILED(hr))
        TRACE_(d3d_caps)("Unsupported display/backbuffer format combination %s/%s\n", debug_d3dformat(DisplayFormat), debug_d3dformat(BackBufferFormat));

    return hr;
}


#define GLINFO_LOCATION Adapters[Adapter].gl_info
/* Check if we support bumpmapping for a format */
static BOOL CheckBumpMapCapability(UINT Adapter, WINED3DFORMAT CheckFormat)
{
    if(GL_SUPPORT(NV_REGISTER_COMBINERS) && GL_SUPPORT(NV_TEXTURE_SHADER2)) {
        switch (CheckFormat) {
            case WINED3DFMT_V8U8:
                TRACE_(d3d_caps)("[OK]\n");
                return TRUE;
            /* TODO: Other bump map formats */
            default:
                TRACE_(d3d_caps)("[FAILED]\n");
                return FALSE;
        }
    }
    if(GL_SUPPORT(ATI_ENVMAP_BUMPMAP)) {
        switch (CheckFormat) {
            case WINED3DFMT_V8U8:
                TRACE_(d3d_caps)("[OK]\n");
                return TRUE;
            default:
                TRACE_(d3d_caps)("[FAILED]\n");
                return FALSE;
        }
    }
    TRACE_(d3d_caps)("[FAILED]\n");
    return FALSE;
}

/* Check if the given DisplayFormat + DepthStencilFormat combination is valid for the Adapter */
static BOOL CheckDepthStencilCapability(UINT Adapter, WINED3DFORMAT DisplayFormat,
WINED3DFORMAT DepthStencilFormat)
{
    int it=0;
    WineD3D_PixelFormat *cfgs = Adapters[Adapter].cfgs;

    /* Only allow depth/stencil formats */
    switch (DepthStencilFormat) {
        case WINED3DFMT_D16_LOCKABLE:
        case WINED3DFMT_D16:
        case WINED3DFMT_D15S1:
        case WINED3DFMT_D24X8:
        case WINED3DFMT_D24X4S4:
        case WINED3DFMT_D24S8:
        case WINED3DFMT_D24FS8:
        case WINED3DFMT_D32:
        case WINED3DFMT_D32F_LOCKABLE:
            break;

        default:
            return FALSE;
    }

    /* Walk through all WGL pixel formats to find a match */
    cfgs = Adapters[Adapter].cfgs;
    for (it = 0; it < Adapters[Adapter].nCfgs; ++it) {
        if (IWineD3DImpl_IsPixelFormatCompatibleWithRenderFmt(&cfgs[it], DisplayFormat)) {
            if (IWineD3DImpl_IsPixelFormatCompatibleWithDepthFmt(&cfgs[it], DepthStencilFormat)) {
                return TRUE;
            }
        }
    }

    return FALSE;
}

static BOOL CheckFilterCapability(WINED3DFORMAT CheckFormat)
{
    switch (CheckFormat) {
        /* Filtering not supported */
        case WINED3DFMT_R32F:
        case WINED3DFMT_A32B32G32R32F:
            TRACE_(d3d_caps)("[FAILED]\n");
            return FALSE;
        default:
            break;
    }

    return TRUE;
}

/* Check the render target capabilities of a format */
static BOOL CheckRenderTargetCapability(WINED3DFORMAT AdapterFormat, WINED3DFORMAT CheckFormat)
{
    UINT Adapter = 0;

    /* Filter out non-RT formats */
    switch(CheckFormat)
    {
        /* Don't offer 8bit, windows doesn't either although we could emulate it */
        case WINED3DFMT_A8P8:
        case WINED3DFMT_P8:

        /* No DXTC render targets */
        case WINED3DFMT_DXT1:
        case WINED3DFMT_DXT2:
        case WINED3DFMT_DXT3:
        case WINED3DFMT_DXT4:
        case WINED3DFMT_DXT5:
            return FALSE;
        default:
            break;
    }

    if(wined3d_settings.offscreen_rendering_mode == ORM_BACKBUFFER) {
        WineD3D_PixelFormat *cfgs = Adapters[Adapter].cfgs;
        int it;
        short AdapterRed, AdapterGreen, AdapterBlue, AdapterAlpha, AdapterTotalSize;
        short CheckRed, CheckGreen, CheckBlue, CheckAlpha, CheckTotalSize;

        getColorBits(AdapterFormat, &AdapterRed, &AdapterGreen, &AdapterBlue, &AdapterAlpha, &AdapterTotalSize);
        getColorBits(CheckFormat, &CheckRed, &CheckGreen, &CheckBlue, &CheckAlpha, &CheckTotalSize);

        /* In backbuffer mode the front and backbuffer share the same WGL pixelformat.
         * The format must match in RGB, alpha is allowed to be different. (Only the backbuffer can have alpha) */
        if(!((AdapterRed == CheckRed) && (AdapterGreen == CheckGreen) && (AdapterBlue == CheckBlue))) {
            TRACE_(d3d_caps)("[FAILED]\n");
            return FALSE;
        }

        /* Check if there is a WGL pixel format matching the requirements, the format should also be window
         * drawable (not offscreen; e.g. Nvidia offers R5G6B5 for pbuffers even when X is running at 24bit) */
        for (it = 0; it < Adapters[Adapter].nCfgs; ++it) {
            if (cfgs[it].windowDrawable && IWineD3DImpl_IsPixelFormatCompatibleWithRenderFmt(&cfgs[it], CheckFormat)) {
                TRACE_(d3d_caps)("iPixelFormat=%d is compatible with CheckFormat=%s\n", cfgs[it].iPixelFormat, debug_d3dformat(CheckFormat));
                return TRUE;
            }
        }
    } else if(wined3d_settings.offscreen_rendering_mode == ORM_PBUFFER) {
        /* We can propably use this function in FBO mode too on some drivers to get some basic indication of the capabilities. */
        WineD3D_PixelFormat *cfgs = Adapters[Adapter].cfgs;
        int it;

        /* Check if there is a WGL pixel format matching the requirements, the pixel format should also be usable with pbuffers */
        for (it = 0; it < Adapters[Adapter].nCfgs; ++it) {
            if (cfgs[it].pbufferDrawable && IWineD3DImpl_IsPixelFormatCompatibleWithRenderFmt(&cfgs[it], CheckFormat)) {
                TRACE_(d3d_caps)("iPixelFormat=%d is compatible with CheckFormat=%s\n", cfgs[it].iPixelFormat, debug_d3dformat(CheckFormat));
                return TRUE;
            }
        }
    } else if(wined3d_settings.offscreen_rendering_mode == ORM_FBO){
        /* For now return TRUE for FBOs until we have some proper checks.
         * Note that this function will only be called when the format is around for texturing. */
        return TRUE;
    }
    return FALSE;
}

static BOOL CheckSrgbReadCapability(UINT Adapter, WINED3DFORMAT CheckFormat)
{
    /* Check for supported sRGB formats (Texture loading and framebuffer) */
    if(!GL_SUPPORT(EXT_TEXTURE_SRGB)) {
        TRACE_(d3d_caps)("[FAILED] GL_EXT_texture_sRGB not supported\n");
        return FALSE;
    }

    switch (CheckFormat) {
        case WINED3DFMT_A8R8G8B8:
        case WINED3DFMT_X8R8G8B8:
        case WINED3DFMT_A4R4G4B4:
        case WINED3DFMT_L8:
        case WINED3DFMT_A8L8:
        case WINED3DFMT_DXT1:
        case WINED3DFMT_DXT2:
        case WINED3DFMT_DXT3:
        case WINED3DFMT_DXT4:
        case WINED3DFMT_DXT5:
            TRACE_(d3d_caps)("[OK]\n");
            return TRUE;

        default:
            TRACE_(d3d_caps)("[FAILED] Gamma texture format %s not supported.\n", debug_d3dformat(CheckFormat));
            return FALSE;
    }
    return FALSE;
}

static BOOL CheckSrgbWriteCapability(UINT Adapter, WINED3DDEVTYPE DeviceType, WINED3DFORMAT CheckFormat)
{
    /* Only offer SRGB writing on X8R8G8B8/A8R8G8B8 when we use ARB or GLSL shaders as we are
     * doing the color fixup in shaders.
     * Note Windows drivers (at least on the Geforce 8800) also offer this on R5G6B5. */
    if((CheckFormat == WINED3DFMT_X8R8G8B8) || (CheckFormat == WINED3DFMT_A8R8G8B8)) {
        int vs_selected_mode;
        int ps_selected_mode;
        select_shader_mode(&GLINFO_LOCATION, DeviceType, &ps_selected_mode, &vs_selected_mode);

        if((ps_selected_mode == SHADER_ARB) || (ps_selected_mode == SHADER_GLSL)) {
            TRACE_(d3d_caps)("[OK]\n");
            return TRUE;
        }
    }

    TRACE_(d3d_caps)("[FAILED] - no SRGB writing support on format=%s\n", debug_d3dformat(CheckFormat));
    return FALSE;
}

/* Check if a texture format is supported on the given adapter */
static BOOL CheckTextureCapability(UINT Adapter, WINED3DFORMAT CheckFormat)
{
    switch (CheckFormat) {

        /*****
         *  supported: RGB(A) formats
         */
        case WINED3DFMT_R8G8B8: /* Enable for dx7, blacklisted for 8 and 9 above */
        case WINED3DFMT_A8R8G8B8:
        case WINED3DFMT_X8R8G8B8:
        case WINED3DFMT_R5G6B5:
        case WINED3DFMT_X1R5G5B5:
        case WINED3DFMT_A1R5G5B5:
        case WINED3DFMT_A4R4G4B4:
        case WINED3DFMT_R3G3B2:
        case WINED3DFMT_A8:
        case WINED3DFMT_X4R4G4B4:
        case WINED3DFMT_A8B8G8R8:
        case WINED3DFMT_X8B8G8R8:
        case WINED3DFMT_A2R10G10B10:
        case WINED3DFMT_A2B10G10R10:
        case WINED3DFMT_G16R16:
            TRACE_(d3d_caps)("[OK]\n");
            return TRUE;

        /*****
         *  supported: Palettized
         */
        case WINED3DFMT_P8:
            TRACE_(d3d_caps)("[OK]\n");
            return TRUE;
        /* No Windows driver offers A8P8, so don't offer it either */
        case WINED3DFMT_A8P8:
            return FALSE;

        /*****
         *  Supported: (Alpha)-Luminance
         */
        case WINED3DFMT_L8:
        case WINED3DFMT_A8L8:
        case WINED3DFMT_A4L4:
        case WINED3DFMT_L16:
            TRACE_(d3d_caps)("[OK]\n");
            return TRUE;

        /* Depth/stencil is handled using checkDepthStencilCapability, return FALSE here */
        case WINED3DFMT_D16_LOCKABLE:
        case WINED3DFMT_D16:
        case WINED3DFMT_D15S1:
        case WINED3DFMT_D24X8:
        case WINED3DFMT_D24X4S4:
        case WINED3DFMT_D24S8:
        case WINED3DFMT_D24FS8:
        case WINED3DFMT_D32:
        case WINED3DFMT_D32F_LOCKABLE:
            return FALSE;

        /*****
         *  Not supported everywhere(depends on GL_ATI_envmap_bumpmap or
         *  GL_NV_texture_shader), but advertized to make apps happy.
         *  Enable some because games often fail when they are not available
         *  and are still playable even without bump mapping
         */
        case WINED3DFMT_V8U8:
            if(GL_SUPPORT(NV_TEXTURE_SHADER) || GL_SUPPORT(ATI_ENVMAP_BUMPMAP)) {
                return TRUE;
            }
            TRACE_(d3d_caps)("[FAILED] - No converted formats on volumes\n");
            return FALSE;

        case WINED3DFMT_X8L8V8U8:
        case WINED3DFMT_L6V5U5:
            WARN_(d3d_caps)("[FAILED]\n");
            return FALSE;

        case WINED3DFMT_Q8W8V8U8:
        case WINED3DFMT_V16U16:
            if(GL_SUPPORT(NV_TEXTURE_SHADER)) {
                WARN_(d3d_caps)("[Not supported, but pretended to do]\n");
                return TRUE;
            }
            TRACE_(d3d_caps)("[FAILED] - No converted formats on volumes\n");
            return FALSE;

        /* Those are not advertized by the nvidia windows driver, and not
         * supported natively by GL_NV_texture_shader or GL_ATI_envmap_bumpmap.
         * WINED3DFMT_A2W10V10U10 could be loaded into shaders using the unsigned
         * ARGB format if needed
         */
        case WINED3DFMT_W11V11U10:
        case WINED3DFMT_A2W10V10U10:
            WARN_(d3d_caps)("[FAILED]\n");
            return FALSE;

        case WINED3DFMT_DXT1:
        case WINED3DFMT_DXT2:
        case WINED3DFMT_DXT3:
        case WINED3DFMT_DXT4:
        case WINED3DFMT_DXT5:
            if (GL_SUPPORT(EXT_TEXTURE_COMPRESSION_S3TC)) {
                TRACE_(d3d_caps)("[OK]\n");
                return TRUE;
            }
            TRACE_(d3d_caps)("[FAILED]\n");
            return FALSE;


        /*****
         *  Odd formats - not supported
         */
        case WINED3DFMT_VERTEXDATA:
        case WINED3DFMT_INDEX16:
        case WINED3DFMT_INDEX32:
        case WINED3DFMT_Q16W16V16U16:
            TRACE_(d3d_caps)("[FAILED]\n"); /* Enable when implemented */
            return FALSE;

        /*****
         *  WINED3DFMT_CxV8U8: Not supported right now
         */
        case WINED3DFMT_CxV8U8:
            TRACE_(d3d_caps)("[FAILED]\n"); /* Enable when implemented */
            return FALSE;

        /* YUV formats, not supported for now */
        case WINED3DFMT_UYVY:
        case WINED3DFMT_YUY2:
            TRACE_(d3d_caps)("[FAILED]\n"); /* Enable when implemented */
            return FALSE;

            /* Not supported */
        case WINED3DFMT_A16B16G16R16:
        case WINED3DFMT_A8R3G3B2:
            TRACE_(d3d_caps)("[FAILED]\n"); /* Enable when implemented */
            return FALSE;

            /* Floating point formats */
        case WINED3DFMT_R16F:
        case WINED3DFMT_A16B16G16R16F:
            if(GL_SUPPORT(ARB_HALF_FLOAT_PIXEL)) {
                TRACE_(d3d_caps)("[OK]\n");
                return TRUE;
            }
            TRACE_(d3d_caps)("[FAILED]\n");
            return FALSE;

        case WINED3DFMT_R32F:
        case WINED3DFMT_A32B32G32R32F:
            if (GL_SUPPORT(ARB_TEXTURE_FLOAT)) {
                TRACE_(d3d_caps)("[OK]\n");
                return TRUE;
            }
            TRACE_(d3d_caps)("[FAILED]\n");
            return FALSE;

        case WINED3DFMT_G16R16F:
        case WINED3DFMT_G32R32F:
            TRACE_(d3d_caps)("[FAILED]\n");
            return FALSE;

        /* ATI instancing hack: Although ATI cards do not support Shader Model 3.0, they support
         * instancing. To query if the card supports instancing CheckDeviceFormat with the special format
         * MAKEFOURCC('I','N','S','T') is used. Should a (broken) app check for this provide a proper return value.
         * We can do instancing with all shader versions, but we need vertex shaders.
         *
         * Additionally applications have to set the D3DRS_POINTSIZE render state to MAKEFOURCC('I','N','S','T') once
         * to enable instancing. WineD3D doesn't need that and just ignores it.
         *
         * With Shader Model 3.0 capable cards Instancing 'just works' in Windows.
         */
        case WINEMAKEFOURCC('I','N','S','T'):
            TRACE("ATI Instancing check hack\n");
            if(GL_SUPPORT(ARB_VERTEX_PROGRAM) || GL_SUPPORT(ARB_VERTEX_SHADER)) {
                TRACE_(d3d_caps)("[OK]\n");
                return TRUE;
            }
            TRACE_(d3d_caps)("[FAILED]\n");
            return FALSE;

        /* Some weird FOURCC formats */
        case WINED3DFMT_R8G8_B8G8:
        case WINED3DFMT_G8R8_G8B8:
        case WINED3DFMT_MULTI2_ARGB8:
            TRACE_(d3d_caps)("[FAILED]\n");
            return FALSE;

        case WINED3DFMT_UNKNOWN:
            return FALSE;

        default:
            ERR("Unhandled format=%s\n", debug_d3dformat(CheckFormat));
            break;
    }
    return FALSE;
}

static BOOL CheckVertexTextureCapability(UINT Adapter, WINED3DFORMAT CheckFormat)
{
    if (!GL_LIMITS(vertex_samplers)) {
        TRACE_(d3d_caps)("[FAILED]\n");
        return FALSE;
    }

    switch (CheckFormat) {
        case WINED3DFMT_A32B32G32R32F:
            if (!GL_SUPPORT(ARB_TEXTURE_FLOAT)) {
                TRACE_(d3d_caps)("[FAILED]\n");
                return FALSE;
            }
            TRACE_(d3d_caps)("[OK]\n");
            return TRUE;

        default:
            TRACE_(d3d_caps)("[FAILED]\n");
            return FALSE;
    }
    return FALSE;
}

static HRESULT WINAPI IWineD3DImpl_CheckDeviceFormat(IWineD3D *iface, UINT Adapter, WINED3DDEVTYPE DeviceType, 
                                              WINED3DFORMAT AdapterFormat, DWORD Usage, WINED3DRESOURCETYPE RType, WINED3DFORMAT CheckFormat) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    DWORD UsageCaps = 0;

    TRACE_(d3d_caps)("(%p)-> (STUB) (Adptr:%d, DevType:(%u,%s), AdptFmt:(%u,%s), Use:(%u,%s,%s), ResTyp:(%x,%s), CheckFmt:(%u,%s))\n",
          This,
          Adapter,
          DeviceType, debug_d3ddevicetype(DeviceType),
          AdapterFormat, debug_d3dformat(AdapterFormat),
          Usage, debug_d3dusage(Usage), debug_d3dusagequery(Usage),
          RType, debug_d3dresourcetype(RType),
          CheckFormat, debug_d3dformat(CheckFormat));

    if (Adapter >= IWineD3D_GetAdapterCount(iface)) {
        return WINED3DERR_INVALIDCALL;
    }

    if(RType == WINED3DRTYPE_CUBETEXTURE) {
        /* Cubetexture allows:
         *                    - D3DUSAGE_AUTOGENMIPMAP
         *                    - D3DUSAGE_DEPTHSTENCIL
         *                    - D3DUSAGE_DYNAMIC
         *                    - D3DUSAGE_NONSECURE (d3d9ex)
         *                    - D3DUSAGE_RENDERTARGET
         *                    - D3DUSAGE_SOFTWAREPROCESSING
         */
        if(GL_SUPPORT(ARB_TEXTURE_CUBE_MAP)) {
            /* Check if the texture format is around */
            if(CheckTextureCapability(Adapter, CheckFormat)) {
                if(Usage & WINED3DUSAGE_AUTOGENMIPMAP) {
                    /* Check for automatic mipmap generation support */
                    if(GL_SUPPORT(SGIS_GENERATE_MIPMAP)) {
                        UsageCaps |= WINED3DUSAGE_AUTOGENMIPMAP;
                    } else {
                        /* When autogenmipmap isn't around continue and return WINED3DOK_NOAUOTGEN instead of D3D_OK */
                        TRACE_(d3d_caps)("[FAILED] - No autogenmipmap support, but continuing\n");
                    }
                }

                /* Always report dynamic locking */
                if(Usage & WINED3DUSAGE_DYNAMIC)
                    UsageCaps |= WINED3DUSAGE_DYNAMIC;

                if(Usage & WINED3DUSAGE_RENDERTARGET) {
                    if(CheckRenderTargetCapability(AdapterFormat, CheckFormat)) {
                        UsageCaps |= WINED3DUSAGE_RENDERTARGET;
                    } else {
                        TRACE_(d3d_caps)("[FAILED] - No rendertarget support\n");
                        return WINED3DERR_NOTAVAILABLE;
                    }
                }

                /* Always report software processing */
                if(Usage & WINED3DUSAGE_SOFTWAREPROCESSING)
                    UsageCaps |= WINED3DUSAGE_SOFTWAREPROCESSING;

                /* Check QUERY_FILTER support */
                if(Usage & WINED3DUSAGE_QUERY_FILTER) {
                    if(CheckFilterCapability(CheckFormat)) {
                        UsageCaps |= WINED3DUSAGE_QUERY_FILTER;
                    } else {
                        TRACE_(d3d_caps)("[FAILED] - No query filter support\n");
                        return WINED3DERR_NOTAVAILABLE;
                    }
                }

                /* Check QUERY_SRGBREAD support */
                if(Usage & WINED3DUSAGE_QUERY_SRGBREAD) {
                    if(CheckSrgbReadCapability(Adapter, CheckFormat)) {
                        UsageCaps |= WINED3DUSAGE_QUERY_SRGBREAD;
                    } else {
                        TRACE_(d3d_caps)("[FAILED] - No query srgbread support\n");
                        return WINED3DERR_NOTAVAILABLE;
                    }
                }

                /* Check QUERY_SRGBWRITE support */
                if(Usage & WINED3DUSAGE_QUERY_SRGBWRITE) {
                    if(CheckSrgbWriteCapability(Adapter, DeviceType, CheckFormat)) {
                        UsageCaps |= WINED3DUSAGE_QUERY_SRGBWRITE;
                    } else {
                        TRACE_(d3d_caps)("[FAILED] - No query srgbwrite support\n");
                        return WINED3DERR_NOTAVAILABLE;
                    }
                }

                /* Check QUERY_VERTEXTEXTURE support */
                if(Usage & WINED3DUSAGE_QUERY_VERTEXTEXTURE) {
                    if(CheckVertexTextureCapability(Adapter, CheckFormat)) {
                        UsageCaps |= WINED3DUSAGE_QUERY_VERTEXTEXTURE;
                    } else {
                        TRACE_(d3d_caps)("[FAILED] - No query vertextexture support\n");
                        return WINED3DERR_NOTAVAILABLE;
                    }
                }
            } else {
                TRACE_(d3d_caps)("[FAILED] - Cube texture format not supported\n");
                return WINED3DERR_NOTAVAILABLE;
            }
        } else {
            TRACE_(d3d_caps)("[FAILED] - No cube texture support\n");
            return WINED3DERR_NOTAVAILABLE;
        }
    } else if(RType == WINED3DRTYPE_SURFACE) {
        /* Surface allows:
         *                - D3DUSAGE_DEPTHSTENCIL
         *                - D3DUSAGE_NONSECURE (d3d9ex)
         *                - D3DUSAGE_RENDERTARGET
         */

        if(Usage & WINED3DUSAGE_DEPTHSTENCIL) {
            if(CheckDepthStencilCapability(Adapter, AdapterFormat, CheckFormat)) {
                UsageCaps |= WINED3DUSAGE_DEPTHSTENCIL;
            } else {
                TRACE_(d3d_caps)("[FAILED] - No depthstencil support\n");
                return WINED3DERR_NOTAVAILABLE;
            }
        }

        if(Usage & WINED3DUSAGE_RENDERTARGET) {
            if(CheckRenderTargetCapability(AdapterFormat, CheckFormat)) {
                UsageCaps |= WINED3DUSAGE_RENDERTARGET;
            } else {
                TRACE_(d3d_caps)("[FAILED] - No rendertarget support\n");
                 return WINED3DERR_NOTAVAILABLE;
            }
        }
    } else if(RType == WINED3DRTYPE_TEXTURE) {
        /* Texture allows:
         *                - D3DUSAGE_AUTOGENMIPMAP
         *                - D3DUSAGE_DEPTHSTENCIL
         *                - D3DUSAGE_DMAP
         *                - D3DUSAGE_DYNAMIC
         *                - D3DUSAGE_NONSECURE (d3d9ex)
         *                - D3DUSAGE_RENDERTARGET
         *                - D3DUSAGE_SOFTWAREPROCESSING
         *                - D3DUSAGE_TEXTAPI (d3d9ex)
         */

        /* Check if the texture format is around */
        if(CheckTextureCapability(Adapter, CheckFormat)) {
            if(Usage & WINED3DUSAGE_AUTOGENMIPMAP) {
                /* Check for automatic mipmap generation support */
                if(GL_SUPPORT(SGIS_GENERATE_MIPMAP)) {
                    UsageCaps |= WINED3DUSAGE_AUTOGENMIPMAP;
                } else {
                    /* When autogenmipmap isn't around continue and return WINED3DOK_NOAUOTGEN instead of D3D_OK */
                    TRACE_(d3d_caps)("[FAILED] - No autogenmipmap support, but continuing\n");
                }
            }

            /* Always report dynamic locking */
            if(Usage & WINED3DUSAGE_DYNAMIC)
                UsageCaps |= WINED3DUSAGE_DYNAMIC;

            if(Usage & WINED3DUSAGE_RENDERTARGET) {
                if(CheckRenderTargetCapability(AdapterFormat, CheckFormat)) {
                    UsageCaps |= WINED3DUSAGE_RENDERTARGET;
                } else {
                    TRACE_(d3d_caps)("[FAILED] - No rendertarget support\n");
                     return WINED3DERR_NOTAVAILABLE;
                 }
            }

            /* Always report software processing */
            if(Usage & WINED3DUSAGE_SOFTWAREPROCESSING)
                UsageCaps |= WINED3DUSAGE_SOFTWAREPROCESSING;

            /* Check QUERY_FILTER support */
            if(Usage & WINED3DUSAGE_QUERY_FILTER) {
                if(CheckFilterCapability(CheckFormat)) {
                    UsageCaps |= WINED3DUSAGE_QUERY_FILTER;
                } else {
                    TRACE_(d3d_caps)("[FAILED] - No query filter support\n");
                    return WINED3DERR_NOTAVAILABLE;
                }
            }

            /* Check QUERY_LEGACYBUMPMAP support */
            if(Usage & WINED3DUSAGE_QUERY_LEGACYBUMPMAP) {
                if(CheckBumpMapCapability(Adapter, CheckFormat)) {
                    UsageCaps |= WINED3DUSAGE_QUERY_LEGACYBUMPMAP;
                } else {
                    TRACE_(d3d_caps)("[FAILED] - No legacy bumpmap support\n");
                    return WINED3DERR_NOTAVAILABLE;
                }
            }

            /* Check QUERY_SRGBREAD support */
            if(Usage & WINED3DUSAGE_QUERY_SRGBREAD) {
                if(CheckSrgbReadCapability(Adapter, CheckFormat)) {
                    UsageCaps |= WINED3DUSAGE_QUERY_SRGBREAD;
                } else {
                    TRACE_(d3d_caps)("[FAILED] - No query srgbread support\n");
                    return WINED3DERR_NOTAVAILABLE;
                }
            }

            /* Check QUERY_SRGBWRITE support */
            if(Usage & WINED3DUSAGE_QUERY_SRGBWRITE) {
                if(CheckSrgbWriteCapability(Adapter, DeviceType, CheckFormat)) {
                    UsageCaps |= WINED3DUSAGE_QUERY_SRGBWRITE;
                } else {
                    TRACE_(d3d_caps)("[FAILED] - No query srgbwrite support\n");
                    return WINED3DERR_NOTAVAILABLE;
                }
            }

            /* Check QUERY_VERTEXTEXTURE support */
            if(Usage & WINED3DUSAGE_QUERY_VERTEXTEXTURE) {
                if(CheckVertexTextureCapability(Adapter, CheckFormat)) {
                    UsageCaps |= WINED3DUSAGE_QUERY_VERTEXTEXTURE;
                } else {
                    TRACE_(d3d_caps)("[FAILED] - No query vertextexture support\n");
                    return WINED3DERR_NOTAVAILABLE;
                }
            }
        } else if(CheckDepthStencilCapability(Adapter, AdapterFormat, CheckFormat)) {
            if(Usage & WINED3DUSAGE_DEPTHSTENCIL)
                UsageCaps |= WINED3DUSAGE_DEPTHSTENCIL;
        } else {
            TRACE_(d3d_caps)("[FAILED] - Texture format not supported\n");
            return WINED3DERR_NOTAVAILABLE;
        }
    } else if((RType == WINED3DRTYPE_VOLUME) || (RType == WINED3DRTYPE_VOLUMETEXTURE)) {
        /* Volume is to VolumeTexture what Surface is to Texture but its usage caps are not documented.
         * Most driver seem to offer (nearly) the same on Volume and VolumeTexture, so do that too.
         *
         * Volumetexture allows:
         *                      - D3DUSAGE_DYNAMIC
         *                      - D3DUSAGE_NONSECURE (d3d9ex)
         *                      - D3DUSAGE_SOFTWAREPROCESSING
         */

        /* Check volume texture and volume usage caps */
        if(GL_SUPPORT(EXT_TEXTURE3D)) {
            if(CheckTextureCapability(Adapter, CheckFormat) == FALSE) {
                TRACE_(d3d_caps)("[FAILED] - Format not supported\n");
                return WINED3DERR_NOTAVAILABLE;
            }

            /* Always report dynamic locking */
            if(Usage & WINED3DUSAGE_DYNAMIC)
                UsageCaps |= WINED3DUSAGE_DYNAMIC;

            /* Always report software processing */
            if(Usage & WINED3DUSAGE_SOFTWAREPROCESSING)
                UsageCaps |= WINED3DUSAGE_SOFTWAREPROCESSING;

            /* Check QUERY_FILTER support */
            if(Usage & WINED3DUSAGE_QUERY_FILTER) {
                if(CheckFilterCapability(CheckFormat)) {
                    UsageCaps |= WINED3DUSAGE_QUERY_FILTER;
                } else {
                    TRACE_(d3d_caps)("[FAILED] - No query filter support\n");
                    return WINED3DERR_NOTAVAILABLE;
                }
            }

            /* Check QUERY_SRGBREAD support */
            if(Usage & WINED3DUSAGE_QUERY_SRGBREAD) {
                if(CheckSrgbReadCapability(Adapter, CheckFormat)) {
                    UsageCaps |= WINED3DUSAGE_QUERY_SRGBREAD;
                } else {
                    TRACE_(d3d_caps)("[FAILED] - No query srgbread support\n");
                    return WINED3DERR_NOTAVAILABLE;
                }
            }

            /* Check QUERY_SRGBWRITE support */
            if(Usage & WINED3DUSAGE_QUERY_SRGBWRITE) {
                if(CheckSrgbWriteCapability(Adapter, DeviceType, CheckFormat)) {
                    UsageCaps |= WINED3DUSAGE_QUERY_SRGBWRITE;
                } else {
                    TRACE_(d3d_caps)("[FAILED] - No query srgbwrite support\n");
                    return WINED3DERR_NOTAVAILABLE;
                }
            }

            /* Check QUERY_VERTEXTEXTURE support */
            if(Usage & WINED3DUSAGE_QUERY_VERTEXTEXTURE) {
                if(CheckVertexTextureCapability(Adapter, CheckFormat)) {
                    UsageCaps |= WINED3DUSAGE_QUERY_VERTEXTEXTURE;
                } else {
                    TRACE_(d3d_caps)("[FAILED] - No query vertextexture support\n");
                    return WINED3DERR_NOTAVAILABLE;
                }
            }
        } else {
            TRACE_(d3d_caps)("[FAILED] - No volume texture support\n");
            return WINED3DERR_NOTAVAILABLE;
        }

        /* Filter formats that need conversion; For one part, this conversion is unimplemented,
         * and volume textures are huge, so it would be a big performance hit. Unless we hit an
         * app needing one of those formats, don't advertize them to avoid leading apps into
         * temptation. The windows drivers don't support most of those formats on volumes anyway,
         * except of R32F.
         */
        switch(CheckFormat) {
            case WINED3DFMT_P8:
            case WINED3DFMT_A4L4:
            case WINED3DFMT_R32F:
            case WINED3DFMT_R16F:
            case WINED3DFMT_X8L8V8U8:
            case WINED3DFMT_L6V5U5:
            case WINED3DFMT_G16R16:
                TRACE_(d3d_caps)("[FAILED] - No converted formats on volumes\n");
                return WINED3DERR_NOTAVAILABLE;

            case WINED3DFMT_Q8W8V8U8:
            case WINED3DFMT_V16U16:
            if(!GL_SUPPORT(NV_TEXTURE_SHADER)) {
                TRACE_(d3d_caps)("[FAILED] - No converted formats on volumes\n");
                return WINED3DERR_NOTAVAILABLE;
            }
            break;

            case WINED3DFMT_V8U8:
            if(!GL_SUPPORT(NV_TEXTURE_SHADER) || !GL_SUPPORT(ATI_ENVMAP_BUMPMAP)) {
                TRACE_(d3d_caps)("[FAILED] - No converted formats on volumes\n");
                return WINED3DERR_NOTAVAILABLE;
            }
            break;

            case WINED3DFMT_DXT1:
            case WINED3DFMT_DXT2:
            case WINED3DFMT_DXT3:
            case WINED3DFMT_DXT4:
            case WINED3DFMT_DXT5:
                /* The GL_EXT_texture_compression_s3tc spec requires that loading an s3tc
                 * compressed texture results in an error. While the D3D refrast does
                 * support s3tc volumes, at least the nvidia windows driver does not, so
                 * we're free not to support this format.
                 */
                TRACE_(d3d_caps)("[FAILED] - DXTn does not support 3D textures\n");
                return WINED3DERR_NOTAVAILABLE;

            default:
                /* Do nothing, continue with checking the format below */
                break;
        }
    } else if((RType == WINED3DRTYPE_INDEXBUFFER) || (RType == WINED3DRTYPE_VERTEXBUFFER)){
        /* For instance vertexbuffer/indexbuffer aren't supported yet because no Windows drivers seem to offer it */
        TRACE_(d3d_caps)("Unhandled resource type D3DRTYPE_INDEXBUFFER / D3DRTYPE_VERTEXBUFFER\n");
        return WINED3DERR_NOTAVAILABLE;
     }

    /* This format is nothing special and it is supported perfectly.
     * However, ati and nvidia driver on windows do not mark this format as
     * supported (tested with the dxCapsViewer) and pretending to
     * support this format uncovers a bug in Battlefield 1942 (fonts are missing)
     * So do the same as Windows drivers and pretend not to support it on dx8 and 9
     * Enable it on dx7. It will need additional checking on dx10 when we support it.
     */
    if(This->dxVersion > 7 && CheckFormat == WINED3DFMT_R8G8B8) {
        TRACE_(d3d_caps)("[FAILED]\n");
        return WINED3DERR_NOTAVAILABLE;
    }

    /* When the UsageCaps exactly matches Usage return WINED3D_OK except for the situation in which
     * WINED3DUSAGE_AUTOGENMIPMAP isn't around, then WINED3DOK_NOAUTOGEN is returned if all the other
     * usage flags match. */
    if(UsageCaps == Usage) {
        return WINED3D_OK;
    } else if((UsageCaps == (Usage & ~WINED3DUSAGE_AUTOGENMIPMAP)) && (Usage & WINED3DUSAGE_AUTOGENMIPMAP)){
        return WINED3DOK_NOAUTOGEN;
    } else {
        TRACE_(d3d_caps)("[FAILED] - Usage=%#08x requested for CheckFormat=%s and RType=%d but only %#08x is available\n", Usage, debug_d3dformat(CheckFormat), RType, UsageCaps);
        return WINED3DERR_NOTAVAILABLE;
    }
}

static HRESULT  WINAPI IWineD3DImpl_CheckDeviceFormatConversion(IWineD3D *iface, UINT Adapter, WINED3DDEVTYPE DeviceType,
                                                          WINED3DFORMAT SourceFormat, WINED3DFORMAT TargetFormat) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;

    FIXME_(d3d_caps)("(%p)-> (STUB) (Adptr:%d, DevType:(%u,%s), SrcFmt:(%u,%s), TgtFmt:(%u,%s))\n",
          This,
          Adapter,
          DeviceType, debug_d3ddevicetype(DeviceType),
          SourceFormat, debug_d3dformat(SourceFormat),
          TargetFormat, debug_d3dformat(TargetFormat));
    return WINED3D_OK;
}

static const shader_backend_t *select_shader_backend(UINT Adapter, WINED3DDEVTYPE DeviceType) {
    const shader_backend_t *ret;
    int vs_selected_mode;
    int ps_selected_mode;

    select_shader_mode(&GLINFO_LOCATION, DeviceType, &ps_selected_mode, &vs_selected_mode);
    if (vs_selected_mode == SHADER_GLSL || ps_selected_mode == SHADER_GLSL) {
        ret = &glsl_shader_backend;
    } else if (vs_selected_mode == SHADER_ARB || ps_selected_mode == SHADER_ARB) {
        ret = &arb_program_shader_backend;
    } else {
        ret = &none_shader_backend;
    }
    return ret;
}

/* Note: d3d8 passes in a pointer to a D3DCAPS8 structure, which is a true
      subset of a D3DCAPS9 structure. However, it has to come via a void *
      as the d3d8 interface cannot import the d3d9 header                  */
static HRESULT WINAPI IWineD3DImpl_GetDeviceCaps(IWineD3D *iface, UINT Adapter, WINED3DDEVTYPE DeviceType, WINED3DCAPS* pCaps) {

    IWineD3DImpl    *This = (IWineD3DImpl *)iface;
    int vs_selected_mode;
    int ps_selected_mode;
    struct shader_caps shader_caps;
    const shader_backend_t *shader_backend;

    TRACE_(d3d_caps)("(%p)->(Adptr:%d, DevType: %x, pCaps: %p)\n", This, Adapter, DeviceType, pCaps);

    if (Adapter >= IWineD3D_GetAdapterCount(iface)) {
        return WINED3DERR_INVALIDCALL;
    }

    select_shader_mode(&Adapters[Adapter].gl_info, DeviceType, &ps_selected_mode, &vs_selected_mode);

    /* This function should *not* be modifying GL caps
     * TODO: move the functionality where it belongs */
    select_shader_max_constants(ps_selected_mode, vs_selected_mode, &Adapters[Adapter].gl_info);

    /* ------------------------------------------------
       The following fields apply to both d3d8 and d3d9
       ------------------------------------------------ */
    pCaps->DeviceType              = (DeviceType == WINED3DDEVTYPE_HAL) ? WINED3DDEVTYPE_HAL : WINED3DDEVTYPE_REF;  /* Not quite true, but use h/w supported by opengl I suppose */
    pCaps->AdapterOrdinal          = Adapter;

    pCaps->Caps                    = 0;
    pCaps->Caps2                   = WINED3DCAPS2_CANRENDERWINDOWED |
                                     WINED3DCAPS2_FULLSCREENGAMMA |
                                     WINED3DCAPS2_DYNAMICTEXTURES;
    if(GL_SUPPORT(SGIS_GENERATE_MIPMAP)) {
        pCaps->Caps2 |= WINED3DCAPS2_CANAUTOGENMIPMAP;
    }
    pCaps->Caps3                   = WINED3DCAPS3_ALPHA_FULLSCREEN_FLIP_OR_DISCARD;
    pCaps->PresentationIntervals   = WINED3DPRESENT_INTERVAL_IMMEDIATE  |
                                     WINED3DPRESENT_INTERVAL_ONE;

    pCaps->CursorCaps              = WINED3DCURSORCAPS_COLOR            |
                                     WINED3DCURSORCAPS_LOWRES;

    pCaps->DevCaps                 = WINED3DDEVCAPS_FLOATTLVERTEX       |
                                     WINED3DDEVCAPS_EXECUTESYSTEMMEMORY |
                                     WINED3DDEVCAPS_TLVERTEXSYSTEMMEMORY|
                                     WINED3DDEVCAPS_TLVERTEXVIDEOMEMORY |
                                     WINED3DDEVCAPS_DRAWPRIMTLVERTEX    |
                                     WINED3DDEVCAPS_HWTRANSFORMANDLIGHT |
                                     WINED3DDEVCAPS_EXECUTEVIDEOMEMORY  |
                                     WINED3DDEVCAPS_PUREDEVICE          |
                                     WINED3DDEVCAPS_HWRASTERIZATION     |
                                     WINED3DDEVCAPS_TEXTUREVIDEOMEMORY  |
                                     WINED3DDEVCAPS_TEXTURESYSTEMMEMORY |
                                     WINED3DDEVCAPS_CANRENDERAFTERFLIP  |
                                     WINED3DDEVCAPS_DRAWPRIMITIVES2     |
                                     WINED3DDEVCAPS_DRAWPRIMITIVES2EX   |
                                     WINED3DDEVCAPS_RTPATCHES;

    pCaps->PrimitiveMiscCaps       = WINED3DPMISCCAPS_CULLNONE              |
                                     WINED3DPMISCCAPS_CULLCCW               |
                                     WINED3DPMISCCAPS_CULLCW                |
                                     WINED3DPMISCCAPS_COLORWRITEENABLE      |
                                     WINED3DPMISCCAPS_CLIPTLVERTS           |
                                     WINED3DPMISCCAPS_CLIPPLANESCALEDPOINTS |
                                     WINED3DPMISCCAPS_MASKZ                 |
                                     WINED3DPMISCCAPS_BLENDOP;
                                    /* TODO:
                                        WINED3DPMISCCAPS_NULLREFERENCE
                                        WINED3DPMISCCAPS_INDEPENDENTWRITEMASKS
                                        WINED3DPMISCCAPS_FOGANDSPECULARALPHA
                                        WINED3DPMISCCAPS_MRTINDEPENDENTBITDEPTHS
                                        WINED3DPMISCCAPS_MRTPOSTPIXELSHADERBLENDING
                                        WINED3DPMISCCAPS_FOGVERTEXCLAMPED */

    if(GL_SUPPORT(EXT_BLEND_EQUATION_SEPARATE) && GL_SUPPORT(EXT_BLEND_FUNC_SEPARATE))
        pCaps->PrimitiveMiscCaps |= WINED3DPMISCCAPS_SEPARATEALPHABLEND;

/* The caps below can be supported but aren't handled yet in utils.c 'd3dta_to_combiner_input', disable them until support is fixed */
#if 0
    if (GL_SUPPORT(NV_REGISTER_COMBINERS))
        pCaps->PrimitiveMiscCaps |=  WINED3DPMISCCAPS_TSSARGTEMP;
    if (GL_SUPPORT(NV_REGISTER_COMBINERS2))
        pCaps->PrimitiveMiscCaps |=  WINED3DPMISCCAPS_PERSTAGECONSTANT;
#endif

    pCaps->RasterCaps              = WINED3DPRASTERCAPS_DITHER    |
                                     WINED3DPRASTERCAPS_PAT       |
                                     WINED3DPRASTERCAPS_WFOG      |
                                     WINED3DPRASTERCAPS_ZFOG      |
                                     WINED3DPRASTERCAPS_FOGVERTEX |
                                     WINED3DPRASTERCAPS_FOGTABLE  |
                                     WINED3DPRASTERCAPS_STIPPLE   |
                                     WINED3DPRASTERCAPS_SUBPIXEL  |
                                     WINED3DPRASTERCAPS_ZTEST     |
                                     WINED3DPRASTERCAPS_SCISSORTEST   |
                                     WINED3DPRASTERCAPS_SLOPESCALEDEPTHBIAS |
                                     WINED3DPRASTERCAPS_DEPTHBIAS;

    if (GL_SUPPORT(EXT_TEXTURE_FILTER_ANISOTROPIC)) {
        pCaps->RasterCaps |= WINED3DPRASTERCAPS_ANISOTROPY    |
                             WINED3DPRASTERCAPS_ZBIAS         |
                             WINED3DPRASTERCAPS_MIPMAPLODBIAS;
    }
    if(GL_SUPPORT(NV_FOG_DISTANCE)) {
        pCaps->RasterCaps         |= WINED3DPRASTERCAPS_FOGRANGE;
    }
                        /* FIXME Add:
			   WINED3DPRASTERCAPS_COLORPERSPECTIVE
			   WINED3DPRASTERCAPS_STRETCHBLTMULTISAMPLE
			   WINED3DPRASTERCAPS_ANTIALIASEDGES
			   WINED3DPRASTERCAPS_ZBUFFERLESSHSR
			   WINED3DPRASTERCAPS_WBUFFER */

    pCaps->ZCmpCaps = WINED3DPCMPCAPS_ALWAYS       |
                      WINED3DPCMPCAPS_EQUAL        |
                      WINED3DPCMPCAPS_GREATER      |
                      WINED3DPCMPCAPS_GREATEREQUAL |
                      WINED3DPCMPCAPS_LESS         |
                      WINED3DPCMPCAPS_LESSEQUAL    |
                      WINED3DPCMPCAPS_NEVER        |
                      WINED3DPCMPCAPS_NOTEQUAL;

    pCaps->SrcBlendCaps  = WINED3DPBLENDCAPS_BOTHINVSRCALPHA |
                           WINED3DPBLENDCAPS_BOTHSRCALPHA    |
                           WINED3DPBLENDCAPS_DESTALPHA       |
                           WINED3DPBLENDCAPS_DESTCOLOR       |
                           WINED3DPBLENDCAPS_INVDESTALPHA    |
                           WINED3DPBLENDCAPS_INVDESTCOLOR    |
                           WINED3DPBLENDCAPS_INVSRCALPHA     |
                           WINED3DPBLENDCAPS_INVSRCCOLOR     |
                           WINED3DPBLENDCAPS_ONE             |
                           WINED3DPBLENDCAPS_SRCALPHA        |
                           WINED3DPBLENDCAPS_SRCALPHASAT     |
                           WINED3DPBLENDCAPS_SRCCOLOR        |
                           WINED3DPBLENDCAPS_ZERO;

    pCaps->DestBlendCaps = WINED3DPBLENDCAPS_DESTALPHA       |
                           WINED3DPBLENDCAPS_DESTCOLOR       |
                           WINED3DPBLENDCAPS_INVDESTALPHA    |
                           WINED3DPBLENDCAPS_INVDESTCOLOR    |
                           WINED3DPBLENDCAPS_INVSRCALPHA     |
                           WINED3DPBLENDCAPS_INVSRCCOLOR     |
                           WINED3DPBLENDCAPS_ONE             |
                           WINED3DPBLENDCAPS_SRCALPHA        |
                           WINED3DPBLENDCAPS_SRCCOLOR        |
                           WINED3DPBLENDCAPS_ZERO;
    /* NOTE: WINED3DPBLENDCAPS_SRCALPHASAT is not supported as dest blend factor,
     * according to the glBlendFunc manpage
     *
     * WINED3DPBLENDCAPS_BOTHINVSRCALPHA and WINED3DPBLENDCAPS_BOTHSRCALPHA are
     * legacy settings for srcblend only
     */

    if( GL_SUPPORT(EXT_BLEND_COLOR)) {
        pCaps->SrcBlendCaps |= WINED3DPBLENDCAPS_BLENDFACTOR;
        pCaps->DestBlendCaps |= WINED3DPBLENDCAPS_BLENDFACTOR;
    }


    pCaps->AlphaCmpCaps = WINED3DPCMPCAPS_ALWAYS       |
                          WINED3DPCMPCAPS_EQUAL        |
                          WINED3DPCMPCAPS_GREATER      |
                          WINED3DPCMPCAPS_GREATEREQUAL |
                          WINED3DPCMPCAPS_LESS         |
                          WINED3DPCMPCAPS_LESSEQUAL    |
                          WINED3DPCMPCAPS_NEVER        |
                          WINED3DPCMPCAPS_NOTEQUAL;

    pCaps->ShadeCaps     = WINED3DPSHADECAPS_SPECULARGOURAUDRGB |
                           WINED3DPSHADECAPS_COLORGOURAUDRGB    |
                           WINED3DPSHADECAPS_ALPHAFLATBLEND     |
                           WINED3DPSHADECAPS_ALPHAGOURAUDBLEND  |
                           WINED3DPSHADECAPS_COLORFLATRGB       |
                           WINED3DPSHADECAPS_FOGFLAT            |
                           WINED3DPSHADECAPS_FOGGOURAUD         |
                           WINED3DPSHADECAPS_SPECULARFLATRGB;

    pCaps->TextureCaps =  WINED3DPTEXTURECAPS_ALPHA              |
                          WINED3DPTEXTURECAPS_ALPHAPALETTE       |
                          WINED3DPTEXTURECAPS_BORDER             |
                          WINED3DPTEXTURECAPS_MIPMAP             |
                          WINED3DPTEXTURECAPS_PROJECTED          |
                          WINED3DPTEXTURECAPS_PERSPECTIVE;

    if( !GL_SUPPORT(ARB_TEXTURE_NON_POWER_OF_TWO)) {
        pCaps->TextureCaps |= WINED3DPTEXTURECAPS_POW2 |
                              WINED3DPTEXTURECAPS_NONPOW2CONDITIONAL;
    }

    if( GL_SUPPORT(EXT_TEXTURE3D)) {
        pCaps->TextureCaps |=  WINED3DPTEXTURECAPS_VOLUMEMAP      |
                               WINED3DPTEXTURECAPS_MIPVOLUMEMAP   |
                               WINED3DPTEXTURECAPS_VOLUMEMAP_POW2;
    }

    if (GL_SUPPORT(ARB_TEXTURE_CUBE_MAP)) {
        pCaps->TextureCaps |= WINED3DPTEXTURECAPS_CUBEMAP     |
                              WINED3DPTEXTURECAPS_MIPCUBEMAP    |
                              WINED3DPTEXTURECAPS_CUBEMAP_POW2;

    }

    pCaps->TextureFilterCaps = WINED3DPTFILTERCAPS_MAGFLINEAR       |
                               WINED3DPTFILTERCAPS_MAGFPOINT        |
                               WINED3DPTFILTERCAPS_MINFLINEAR       |
                               WINED3DPTFILTERCAPS_MINFPOINT        |
                               WINED3DPTFILTERCAPS_MIPFLINEAR       |
                               WINED3DPTFILTERCAPS_MIPFPOINT        |
                               WINED3DPTFILTERCAPS_LINEAR           |
                               WINED3DPTFILTERCAPS_LINEARMIPLINEAR  |
                               WINED3DPTFILTERCAPS_LINEARMIPNEAREST |
                               WINED3DPTFILTERCAPS_MIPLINEAR        |
                               WINED3DPTFILTERCAPS_MIPNEAREST       |
                               WINED3DPTFILTERCAPS_NEAREST;

    if (GL_SUPPORT(EXT_TEXTURE_FILTER_ANISOTROPIC)) {
        pCaps->TextureFilterCaps |= WINED3DPTFILTERCAPS_MAGFANISOTROPIC |
                                    WINED3DPTFILTERCAPS_MINFANISOTROPIC;
    }

    if (GL_SUPPORT(ARB_TEXTURE_CUBE_MAP)) {
        pCaps->CubeTextureFilterCaps = WINED3DPTFILTERCAPS_MAGFLINEAR       |
                                       WINED3DPTFILTERCAPS_MAGFPOINT        |
                                       WINED3DPTFILTERCAPS_MINFLINEAR       |
                                       WINED3DPTFILTERCAPS_MINFPOINT        |
                                       WINED3DPTFILTERCAPS_MIPFLINEAR       |
                                       WINED3DPTFILTERCAPS_MIPFPOINT        |
                                       WINED3DPTFILTERCAPS_LINEAR           |
                                       WINED3DPTFILTERCAPS_LINEARMIPLINEAR  |
                                       WINED3DPTFILTERCAPS_LINEARMIPNEAREST |
                                       WINED3DPTFILTERCAPS_MIPLINEAR        |
                                       WINED3DPTFILTERCAPS_MIPNEAREST       |
                                       WINED3DPTFILTERCAPS_NEAREST;

        if (GL_SUPPORT(EXT_TEXTURE_FILTER_ANISOTROPIC)) {
            pCaps->CubeTextureFilterCaps |= WINED3DPTFILTERCAPS_MAGFANISOTROPIC |
                                            WINED3DPTFILTERCAPS_MINFANISOTROPIC;
        }
    } else
        pCaps->CubeTextureFilterCaps = 0;

    if (GL_SUPPORT(EXT_TEXTURE3D)) {
        pCaps->VolumeTextureFilterCaps = WINED3DPTFILTERCAPS_MAGFLINEAR       |
                                         WINED3DPTFILTERCAPS_MAGFPOINT        |
                                         WINED3DPTFILTERCAPS_MINFLINEAR       |
                                         WINED3DPTFILTERCAPS_MINFPOINT        |
                                         WINED3DPTFILTERCAPS_MIPFLINEAR       |
                                         WINED3DPTFILTERCAPS_MIPFPOINT        |
                                         WINED3DPTFILTERCAPS_LINEAR           |
                                         WINED3DPTFILTERCAPS_LINEARMIPLINEAR  |
                                         WINED3DPTFILTERCAPS_LINEARMIPNEAREST |
                                         WINED3DPTFILTERCAPS_MIPLINEAR        |
                                         WINED3DPTFILTERCAPS_MIPNEAREST       |
                                         WINED3DPTFILTERCAPS_NEAREST;
    } else
        pCaps->VolumeTextureFilterCaps = 0;

    pCaps->TextureAddressCaps =  WINED3DPTADDRESSCAPS_INDEPENDENTUV |
                                 WINED3DPTADDRESSCAPS_CLAMP  |
                                 WINED3DPTADDRESSCAPS_WRAP;

    if (GL_SUPPORT(ARB_TEXTURE_BORDER_CLAMP)) {
        pCaps->TextureAddressCaps |= WINED3DPTADDRESSCAPS_BORDER;
    }
    if (GL_SUPPORT(ARB_TEXTURE_MIRRORED_REPEAT)) {
        pCaps->TextureAddressCaps |= WINED3DPTADDRESSCAPS_MIRROR;
    }
    if (GL_SUPPORT(ATI_TEXTURE_MIRROR_ONCE)) {
        pCaps->TextureAddressCaps |= WINED3DPTADDRESSCAPS_MIRRORONCE;
    }

    if (GL_SUPPORT(EXT_TEXTURE3D)) {
        pCaps->VolumeTextureAddressCaps =  WINED3DPTADDRESSCAPS_INDEPENDENTUV |
                                           WINED3DPTADDRESSCAPS_CLAMP  |
                                           WINED3DPTADDRESSCAPS_WRAP;
        if (GL_SUPPORT(ARB_TEXTURE_BORDER_CLAMP)) {
            pCaps->VolumeTextureAddressCaps |= WINED3DPTADDRESSCAPS_BORDER;
        }
        if (GL_SUPPORT(ARB_TEXTURE_MIRRORED_REPEAT)) {
            pCaps->VolumeTextureAddressCaps |= WINED3DPTADDRESSCAPS_MIRROR;
        }
        if (GL_SUPPORT(ATI_TEXTURE_MIRROR_ONCE)) {
            pCaps->VolumeTextureAddressCaps |= WINED3DPTADDRESSCAPS_MIRRORONCE;
        }
    } else
        pCaps->VolumeTextureAddressCaps = 0;

    pCaps->LineCaps = WINED3DLINECAPS_TEXTURE |
                      WINED3DLINECAPS_ZTEST;
                      /* FIXME: Add
                        WINED3DLINECAPS_BLEND
                        WINED3DLINECAPS_ALPHACMP
                        WINED3DLINECAPS_FOG */

    pCaps->MaxTextureWidth  = GL_LIMITS(texture_size);
    pCaps->MaxTextureHeight = GL_LIMITS(texture_size);

    if(GL_SUPPORT(EXT_TEXTURE3D))
        pCaps->MaxVolumeExtent = GL_LIMITS(texture3d_size);
    else
        pCaps->MaxVolumeExtent = 0;

    pCaps->MaxTextureRepeat = 32768;
    pCaps->MaxTextureAspectRatio = GL_LIMITS(texture_size);
    pCaps->MaxVertexW = 1.0;

    pCaps->GuardBandLeft = 0;
    pCaps->GuardBandTop = 0;
    pCaps->GuardBandRight = 0;
    pCaps->GuardBandBottom = 0;

    pCaps->ExtentsAdjust = 0;

    pCaps->StencilCaps =  WINED3DSTENCILCAPS_DECRSAT |
                          WINED3DSTENCILCAPS_INCRSAT |
                          WINED3DSTENCILCAPS_INVERT  |
                          WINED3DSTENCILCAPS_KEEP    |
                          WINED3DSTENCILCAPS_REPLACE |
                          WINED3DSTENCILCAPS_ZERO;
    if (GL_SUPPORT(EXT_STENCIL_WRAP)) {
        pCaps->StencilCaps |= WINED3DSTENCILCAPS_DECR  |
                              WINED3DSTENCILCAPS_INCR;
    }
    if ( This->dxVersion > 8 &&
        ( GL_SUPPORT(EXT_STENCIL_TWO_SIDE) ||
            GL_SUPPORT(ATI_SEPARATE_STENCIL) ) ) {
        pCaps->StencilCaps |= WINED3DSTENCILCAPS_TWOSIDED;
    }

    pCaps->FVFCaps = WINED3DFVFCAPS_PSIZE | 0x0008; /* 8 texture coords */

    pCaps->MaxUserClipPlanes       = GL_LIMITS(clipplanes);
    pCaps->MaxActiveLights         = GL_LIMITS(lights);

    pCaps->MaxVertexBlendMatrices      = GL_LIMITS(blends);
    pCaps->MaxVertexBlendMatrixIndex   = 0;

    pCaps->MaxAnisotropy   = GL_LIMITS(anisotropy);
    pCaps->MaxPointSize    = GL_LIMITS(pointsize);


    pCaps->VertexProcessingCaps = WINED3DVTXPCAPS_DIRECTIONALLIGHTS |
                                  WINED3DVTXPCAPS_MATERIALSOURCE7   |
                                  WINED3DVTXPCAPS_POSITIONALLIGHTS  |
                                  WINED3DVTXPCAPS_LOCALVIEWER       |
                                  WINED3DVTXPCAPS_VERTEXFOG         |
                                  WINED3DVTXPCAPS_TEXGEN;
                                  /* FIXME: Add 
                                     D3DVTXPCAPS_TWEENING, D3DVTXPCAPS_TEXGEN_SPHEREMAP */

    pCaps->MaxPrimitiveCount   = 0xFFFFF; /* For now set 2^20-1 which is used by most >=Geforce3/Radeon8500 cards */
    pCaps->MaxVertexIndex      = 0xFFFFF;
    pCaps->MaxStreams          = MAX_STREAMS;
    pCaps->MaxStreamStride     = 1024;

    /* d3d9.dll sets D3DDEVCAPS2_CAN_STRETCHRECT_FROM_TEXTURES here because StretchRects is implemented in d3d9 */
    pCaps->DevCaps2                          = WINED3DDEVCAPS2_STREAMOFFSET;
    /* TODO: VS3.0 needs at least D3DDEVCAPS2_VERTEXELEMENTSCANSHARESTREAMOFFSET */
    pCaps->MaxNpatchTessellationLevel        = 0;
    pCaps->MasterAdapterOrdinal              = 0;
    pCaps->AdapterOrdinalInGroup             = 0;
    pCaps->NumberOfAdaptersInGroup           = 1;

    pCaps->NumSimultaneousRTs = GL_LIMITS(buffers);

    pCaps->StretchRectFilterCaps             = WINED3DPTFILTERCAPS_MINFPOINT  |
                                                WINED3DPTFILTERCAPS_MAGFPOINT  |
                                                WINED3DPTFILTERCAPS_MINFLINEAR |
                                                WINED3DPTFILTERCAPS_MAGFLINEAR;
    pCaps->VertexTextureFilterCaps           = 0;

    memset(&shader_caps, 0, sizeof(shader_caps));
    shader_backend = select_shader_backend(Adapter, DeviceType);
    shader_backend->shader_get_caps(DeviceType, &GLINFO_LOCATION, &shader_caps);

    pCaps->TextureOpCaps                    = shader_caps.TextureOpCaps;
    pCaps->MaxTextureBlendStages            = shader_caps.MaxTextureBlendStages;
    pCaps->MaxSimultaneousTextures          = shader_caps.MaxSimultaneousTextures;
    pCaps->VertexShaderVersion              = shader_caps.VertexShaderVersion;
    pCaps->MaxVertexShaderConst             = shader_caps.MaxVertexShaderConst;
    pCaps->PixelShaderVersion               = shader_caps.PixelShaderVersion;
    pCaps->PixelShader1xMaxValue            = shader_caps.PixelShader1xMaxValue;
    pCaps->VS20Caps                         = shader_caps.VS20Caps;
    pCaps->MaxVShaderInstructionsExecuted   = shader_caps.MaxVShaderInstructionsExecuted;
    pCaps->MaxVertexShader30InstructionSlots= shader_caps.MaxVertexShader30InstructionSlots;
    pCaps->PS20Caps                         = shader_caps.PS20Caps;
    pCaps->MaxPShaderInstructionsExecuted   = shader_caps.MaxPShaderInstructionsExecuted;
    pCaps->MaxPixelShader30InstructionSlots = shader_caps.MaxPixelShader30InstructionSlots;

    if(pCaps->VertexShaderVersion >= WINED3DVS_VERSION(2,0)) {
        /* OpenGL supports all the formats below, perhaps not always
         * without conversion, but it supports them.
         * Further GLSL doesn't seem to have an official unsigned type so
         * don't advertise it yet as I'm not sure how we handle it.
         * We might need to add some clamping in the shader engine to
         * support it.
         * TODO: WINED3DDTCAPS_USHORT2N, WINED3DDTCAPS_USHORT4N, WINED3DDTCAPS_UDEC3, WINED3DDTCAPS_DEC3N */
        pCaps->DeclTypes = WINED3DDTCAPS_UBYTE4    |
                           WINED3DDTCAPS_UBYTE4N   |
                           WINED3DDTCAPS_SHORT2N   |
                           WINED3DDTCAPS_SHORT4N;
        if (GL_SUPPORT(NV_HALF_FLOAT)) {
            pCaps->DeclTypes |= WINED3DDTCAPS_FLOAT16_2 |
                                WINED3DDTCAPS_FLOAT16_4;
        }
    } else
        pCaps->DeclTypes                         = 0;

    return WINED3D_OK;
}

/* Note due to structure differences between dx8 and dx9 D3DPRESENT_PARAMETERS,
   and fields being inserted in the middle, a new structure is used in place    */
static HRESULT  WINAPI IWineD3DImpl_CreateDevice(IWineD3D *iface, UINT Adapter, WINED3DDEVTYPE DeviceType, HWND hFocusWindow,
                                           DWORD BehaviourFlags, IWineD3DDevice** ppReturnedDeviceInterface,
                                           IUnknown *parent) {

    IWineD3DDeviceImpl *object  = NULL;
    IWineD3DImpl       *This    = (IWineD3DImpl *)iface;
    WINED3DDISPLAYMODE  mode;
    int i;

    /* Validate the adapter number. If no adapters are available(no GL), ignore the adapter
     * number and create a device without a 3D adapter for 2D only operation.
     */
    if (IWineD3D_GetAdapterCount(iface) && Adapter >= IWineD3D_GetAdapterCount(iface)) {
        return WINED3DERR_INVALIDCALL;
    }

    /* Create a WineD3DDevice object */
    object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IWineD3DDeviceImpl));
    *ppReturnedDeviceInterface = (IWineD3DDevice *)object;
    TRACE("Created WineD3DDevice object @ %p\n", object);
    if (NULL == object) {
      return WINED3DERR_OUTOFVIDEOMEMORY;
    }

    /* Set up initial COM information */
    object->lpVtbl  = &IWineD3DDevice_Vtbl;
    object->ref     = 1;
    object->wineD3D = iface;
    object->adapter = numAdapters ? &Adapters[Adapter] : NULL;
    IWineD3D_AddRef(object->wineD3D);
    object->parent  = parent;
    list_init(&object->resources);
    list_init(&object->shaders);

    if(This->dxVersion == 7) {
        object->surface_alignment = 8;
    } else {
        object->surface_alignment = 4;
    }
    object->posFixup[0] = 1.0; /* This is needed to get the x coord unmodified through a MAD */

    /* Set the state up as invalid until the device is fully created */
    object->state   = WINED3DERR_DRIVERINTERNALERROR;

    TRACE("(%p)->(Adptr:%d, DevType: %x, FocusHwnd: %p, BehFlags: %x, RetDevInt: %p)\n", This, Adapter, DeviceType,
          hFocusWindow, BehaviourFlags, ppReturnedDeviceInterface);

    /* Save the creation parameters */
    object->createParms.AdapterOrdinal = Adapter;
    object->createParms.DeviceType     = DeviceType;
    object->createParms.hFocusWindow   = hFocusWindow;
    object->createParms.BehaviorFlags  = BehaviourFlags;

    /* Initialize other useful values */
    object->adapterNo                    = Adapter;
    object->devType                      = DeviceType;

    select_shader_mode(&GLINFO_LOCATION, DeviceType, &object->ps_selected_mode, &object->vs_selected_mode);
    object->shader_backend = select_shader_backend(Adapter, DeviceType);    if(FAILED(object->shader_backend->shader_alloc_private((IWineD3DDevice *) object))) {
        IWineD3D_Release(object->wineD3D);
        HeapFree(GetProcessHeap(), 0, object);
        *ppReturnedDeviceInterface = NULL;
        return E_OUTOFMEMORY;
    }

    /* Prefer the vtable with functions optimized for single dirtifyable objects if the shader
     * model can deal with that. It is essentially the same, just with adjusted
     * Set*ShaderConstantF implementations
     */
    if(object->shader_backend->shader_dirtifyable_constants((IWineD3DDevice *) object)) {
        object->lpVtbl  = &IWineD3DDevice_DirtyConst_Vtbl;
    }

    /* set the state of the device to valid */
    object->state = WINED3D_OK;

    /* Get the initial screen setup for ddraw */
    IWineD3DImpl_GetAdapterDisplayMode(iface, Adapter, &mode);

    object->ddraw_width = mode.Width;
    object->ddraw_height = mode.Height;
    object->ddraw_format = mode.Format;

    for(i = 0; i < PATCHMAP_SIZE; i++) {
        list_init(&object->patches[i]);
    }
    return WINED3D_OK;
}
#undef GLINFO_LOCATION

static HRESULT WINAPI IWineD3DImpl_GetParent(IWineD3D *iface, IUnknown **pParent) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    IUnknown_AddRef(This->parent);
    *pParent = This->parent;
    return WINED3D_OK;
}

ULONG WINAPI D3DCB_DefaultDestroySurface(IWineD3DSurface *pSurface) {
    IUnknown* surfaceParent;
    TRACE("(%p) call back\n", pSurface);

    /* Now, release the parent, which will take care of cleaning up the surface for us */
    IWineD3DSurface_GetParent(pSurface, &surfaceParent);
    IUnknown_Release(surfaceParent);
    return IUnknown_Release(surfaceParent);
}

ULONG WINAPI D3DCB_DefaultDestroyVolume(IWineD3DVolume *pVolume) {
    IUnknown* volumeParent;
    TRACE("(%p) call back\n", pVolume);

    /* Now, release the parent, which will take care of cleaning up the volume for us */
    IWineD3DVolume_GetParent(pVolume, &volumeParent);
    IUnknown_Release(volumeParent);
    return IUnknown_Release(volumeParent);
}

static BOOL implementation_is_apple(WineD3D_GL_Info *gl_info) {
    /* MacOS has various specialities in the extensions it advertises. Some have to be loaded from
     * the opengl 1.2+ core, while other extensions are advertised, but software emulated. So try to
     * detect the Apple OpenGL implementation to apply some extension fixups afterwards.
     *
     * Detecting this isn't really easy. The vendor string doesn't mention Apple. Compile-time checks
     * aren't sufficient either because a Linux binary may display on a macos X server via remote X11.
     * So try to detect the GL implementation by looking at certain Apple extensions. Some extensions
     * like client storage might be supported on other implementations too, but GL_APPLE_flush_render
     * is specific to the Mac OS X window management, and GL_APPLE_ycbcr_422 is QuickTime specific. So
     * the chance that other implementations support them is rather small since Win32 QuickTime uses
     * DirectDraw, not OpenGL.
     */
    if(gl_info->supported[APPLE_FENCE] &&
       gl_info->supported[APPLE_CLIENT_STORAGE] &&
       gl_info->supported[APPLE_FLUSH_RENDER] &&
       gl_info->supported[APPLE_YCBCR_422]) {
        TRACE_(d3d_caps)("GL_APPLE_fence, GL_APPLE_client_storage, GL_APPLE_flush_render and GL_ycbcr_422 are supported\n");
        TRACE_(d3d_caps)("Activating MacOS fixups\n");
        return TRUE;
    } else {
        TRACE_(d3d_caps)("Apple extensions are not supported\n");
        TRACE_(d3d_caps)("Not activating MacOS fixups\n");
        return FALSE;
    }
}

#define GLINFO_LOCATION (*gl_info)
static void test_pbo_functionality(WineD3D_GL_Info *gl_info) {
    /* Some OpenGL implementations, namely Apple's Geforce 8 driver, advertises PBOs,
     * but glTexSubImage from a PBO fails miserably, with the first line repeated over
     * all the texture. This function detects this bug by its symptom and disables PBOs
     * if the test fails.
     *
     * The test uplaods a 4x4 texture via the PBO in the "native" format GL_BGRA,
     * GL_UNSIGNED_INT_8_8_8_8_REV. This format triggers the bug, and it is what we use
     * for D3DFMT_A8R8G8B8. Then the texture is read back without any PBO and the data
     * read back is compared to the original. If they are equal PBOs are assumed to work,
     * otherwise the PBO extension is disabled.
     */
    GLuint texture, pbo;
    static const unsigned int pattern[] = {
        0x00000000, 0x000000ff, 0x0000ff00, 0x40ff0000,
        0x80ffffff, 0x40ffff00, 0x00ff00ff, 0x0000ffff,
        0x00ffff00, 0x00ff00ff, 0x0000ffff, 0x000000ff,
        0x80ff00ff, 0x0000ffff, 0x00ff00ff, 0x40ff00ff
    };
    unsigned int check[sizeof(pattern) / sizeof(pattern[0])];

    if(!gl_info->supported[ARB_PIXEL_BUFFER_OBJECT]) {
        /* No PBO -> No point in testing them */
        return;
    }

    while(glGetError());
    glGenTextures(1, &texture);
    glBindTexture(GL_TEXTURE_2D, texture);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 4, 4, 0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, 0);
    checkGLcall("Specifying the PBO test texture\n");

    GL_EXTCALL(glGenBuffersARB(1, &pbo));
    GL_EXTCALL(glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbo));
    GL_EXTCALL(glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, sizeof(pattern), pattern, GL_STREAM_DRAW_ARB));
    checkGLcall("Specifying the PBO test pbo\n");

    glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 4, 4, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, NULL);
    checkGLcall("Loading the PBO test texture\n");

    GL_EXTCALL(glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0));
    glFinish(); /* just to be sure */

    memset(check, 0, sizeof(check));
    glGetTexImage(GL_TEXTURE_2D, 0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, check);
    checkGLcall("Reading back the PBO test texture\n");

    glDeleteTextures(1, &texture);
    GL_EXTCALL(glDeleteBuffersARB(1, &pbo));
    checkGLcall("PBO test cleanup\n");

    if(memcmp(check, pattern, sizeof(check)) != 0) {
        WARN_(d3d_caps)("PBO test failed, read back data doesn't match original\n");
        WARN_(d3d_caps)("Disabling PBOs. This may result in slower performance\n");
        gl_info->supported[ARB_PIXEL_BUFFER_OBJECT] = FALSE;
    } else {
        TRACE_(d3d_caps)("PBO test successful\n");
    }
}
#undef GLINFO_LOCATION

/* Certain applications(Steam) complain if we report an outdated driver version. In general,
 * reporting a driver version is moot because we are not the Windows driver, and we have different
 * bugs, features, etc.
 *
 * If a card is not found in this table, the gl driver version is reported
 */
struct driver_version_information {
    WORD vendor;                        /* reported PCI card vendor ID  */
    WORD card;                          /* reported PCI card device ID  */
    WORD hipart_hi, hipart_lo;          /* driver hiword to report      */
    WORD lopart_hi, lopart_lo;          /* driver loword to report      */
};

static const struct driver_version_information driver_version_table[] = {
    /* Nvidia drivers. Geforce FX and newer cards are supported by the current driver */
    {VENDOR_NVIDIA,     CARD_NVIDIA_GEFORCEFX_5200,     7,  15, 10, 16921   },
    {VENDOR_NVIDIA,     CARD_NVIDIA_GEFORCEFX_5600,     7,  15, 10, 16921   },
    {VENDOR_NVIDIA,     CARD_NVIDIA_GEFORCEFX_5800,     7,  15, 10, 16921   },
    {VENDOR_NVIDIA,     CARD_NVIDIA_GEFORCE_6200,       7,  15, 10, 16921   },
    {VENDOR_NVIDIA,     CARD_NVIDIA_GEFORCE_6600GT,     7,  15, 10, 16921   },
    {VENDOR_NVIDIA,     CARD_NVIDIA_GEFORCE_6800,       7,  15, 10, 16921   },
    {VENDOR_NVIDIA,     CARD_NVIDIA_GEFORCE_7400,       7,  15, 10, 16921   },
    {VENDOR_NVIDIA,     CARD_NVIDIA_GEFORCE_7300,       7,  15, 10, 16921   },
    {VENDOR_NVIDIA,     CARD_NVIDIA_GEFORCE_7600,       7,  15, 10, 16921   },
    {VENDOR_NVIDIA,     CARD_NVIDIA_GEFORCE_7800GT,     7,  15, 10, 16921   },
    {VENDOR_NVIDIA,     CARD_NVIDIA_GEFORCE_8300GS,     7,  15, 10, 16921   },
    {VENDOR_NVIDIA,     CARD_NVIDIA_GEFORCE_8600GT,     7,  15, 10, 16921   },
    {VENDOR_NVIDIA,     CARD_NVIDIA_GEFORCE_8600MGT,    7,  15, 10, 16921   },
    {VENDOR_NVIDIA,     CARD_NVIDIA_GEFORCE_8800GTS,    7,  15, 10, 16921   },

    /* ATI cards. The driver versions are somewhat similar, but not quite the same. Let's hardcode */
    {VENDOR_ATI,        CARD_ATI_RADEON_9500,           6,  14, 10, 6764    },
    {VENDOR_ATI,        CARD_ATI_RADEON_X700,           6,  14, 10, 6764    },
    {VENDOR_ATI,        CARD_ATI_RADEON_X1600,          6,  14, 10, 6764    },
    {VENDOR_ATI,        CARD_ATI_RADEON_HD2300,         6,  14, 10, 6764    },
    {VENDOR_ATI,        CARD_ATI_RADEON_HD2600,         6,  14, 10, 6764    },
    {VENDOR_ATI,        CARD_ATI_RADEON_HD2900,         6,  14, 10, 6764    },

    /* TODO: Add information about legacy nvidia and ATI hardware, Intel and other cards */
};

static void fixup_extensions(WineD3D_GL_Info *gl_info) {
    unsigned int i;
    BOOL apple = implementation_is_apple(gl_info);

    if(apple) {
        /* MacOS advertises more GLSL vertex shader uniforms than supported by the hardware, and if more are
         * used it falls back to software. While the compiler can detect if the shader uses all declared
         * uniforms, the optimization fails if the shader uses relative addressing. So any GLSL shader
         * using relative addressing falls back to software.
         *
         * ARB vp gives the correct amount of uniforms, so use it instead of GLSL
         */
        if(gl_info->vs_glsl_constantsF <= gl_info->vs_arb_constantsF) {
            FIXME("GLSL doesn't advertise more vertex shader uniforms than ARB. Driver fixup outdated?\n");
        } else {
            TRACE("Driver claims %u GLSL vs uniforms, replacing with %u ARB vp uniforms\n",
                  gl_info->vs_glsl_constantsF, gl_info->vs_arb_constantsF);
            gl_info->vs_glsl_constantsF = gl_info->vs_arb_constantsF;
        }

        /* MacOS advertises GL_ARB_texture_non_power_of_two on ATI r500 and earlier cards, although
         * these cards only support GL_ARB_texture_rectangle(D3DPTEXTURECAPS_NONPOW2CONDITIONAL).
         * If real NP2 textures are used, the driver falls back to software. So remove the supported
         * flag for this extension
         */
        if(gl_info->supported[ARB_TEXTURE_NON_POWER_OF_TWO] && gl_info->gl_vendor == VENDOR_ATI) {
            if(gl_info->gl_card == CARD_ATI_RADEON_X700 || gl_info->gl_card == CARD_ATI_RADEON_X1600 ||
               gl_info->gl_card == CARD_ATI_RADEON_9500 || gl_info->gl_card == CARD_ATI_RADEON_8500  ||
               gl_info->gl_card == CARD_ATI_RADEON_7200 || gl_info->gl_card == CARD_ATI_RAGE_128PRO) {
                TRACE("GL_ARB_texture_non_power_of_two advertised on R500 or earlier card, removing\n");
                gl_info->supported[ARB_TEXTURE_NON_POWER_OF_TWO] = FALSE;
                gl_info->supported[ARB_TEXTURE_RECTANGLE] = TRUE;
            }
        }

        /* The Intel GPUs on MacOS set the .w register of texcoords to 0.0 by default, which causes problems
         * with fixed function fragment processing. Ideally this flag should be detected with a test shader
         * and OpenGL feedback mode, but some GL implementations (MacOS ATI at least, probably all MacOS ones)
         * do not like vertex shaders in feedback mode and return an error, even though it should be valid
         * according to the spec.
         *
         * We don't want to enable this on all cards, as it adds an extra instruction per texcoord used. This
         * makes the shader slower and eats instruction slots which should be available to the d3d app.
         *
         * ATI Radeon HD 2xxx cards on MacOS have the issue. Instead of checking for the buggy cards, blacklist
         * all radeon cards on Macs and whitelist the good ones. That way we're prepared for the future. If
         * this workaround is activated on cards that do not need it, it won't break things, just affect
         * performance negatively.
         */
        if(gl_info->gl_vendor == VENDOR_INTEL ||
           (gl_info->gl_vendor == VENDOR_ATI && gl_info->gl_card != CARD_ATI_RADEON_X1600)) {
            TRACE("Enabling vertex texture coord fixes in vertex shaders\n");
            gl_info->set_texcoord_w = TRUE;
        }
    }

    /* Find out if PBOs work as they are supposed to */
    test_pbo_functionality(gl_info);

    /* Fixup the driver version */
    for(i = 0; i < (sizeof(driver_version_table) / sizeof(driver_version_table[0])); i++) {
        if(gl_info->gl_vendor == driver_version_table[i].vendor &&
           gl_info->gl_card   == driver_version_table[i].card) {
            TRACE_(d3d_caps)("Found card 0x%04x, 0x%04x in driver version DB\n", gl_info->gl_vendor, gl_info->gl_card);

            gl_info->driver_version        = MAKEDWORD_VERSION(driver_version_table[i].lopart_hi,
                                                               driver_version_table[i].lopart_lo);
            gl_info->driver_version_hipart = MAKEDWORD_VERSION(driver_version_table[i].hipart_hi,
                                                               driver_version_table[i].hipart_lo);
            break;
        }
    }
}

void invalid_func(void *data) {
    ERR("Invalid vertex attribute function called\n");
    DebugBreak();
}

#define GLINFO_LOCATION (Adapters[0].gl_info)

/* Helper functions for providing vertex data to opengl. The arrays are initialized based on
 * the extension detection and are used in drawStridedSlow
 */
static void position_d3dcolor(void *data) {
    DWORD pos = *((DWORD *) data);

    FIXME("Add a test for fixed function position from d3dcolor type\n");
    glVertex4s(D3DCOLOR_B_R(pos),
               D3DCOLOR_B_G(pos),
               D3DCOLOR_B_B(pos),
               D3DCOLOR_B_A(pos));
}
static void position_float4(void *data) {
    GLfloat *pos = (float *) data;

    if (pos[3] < eps && pos[3] > -eps)
        glVertex3fv(pos);
    else {
        float w = 1.0 / pos[3];

        glVertex4f(pos[0] * w, pos[1] * w, pos[2] * w, w);
    }
}

static void diffuse_d3dcolor(void *data) {
    DWORD diffuseColor = *((DWORD *) data);

    glColor4ub(D3DCOLOR_B_R(diffuseColor),
               D3DCOLOR_B_G(diffuseColor),
               D3DCOLOR_B_B(diffuseColor),
               D3DCOLOR_B_A(diffuseColor));
}

static void specular_d3dcolor(void *data) {
    DWORD specularColor = *((DWORD *) data);

    GL_EXTCALL(glSecondaryColor3ubEXT)(D3DCOLOR_B_R(specularColor),
                                       D3DCOLOR_B_G(specularColor),
                                       D3DCOLOR_B_B(specularColor));
}
static void warn_no_specular_func(void *data) {
    WARN("GL_EXT_secondary_color not supported\n");
}

void fillGLAttribFuncs(WineD3D_GL_Info *gl_info) {
    position_funcs[WINED3DDECLTYPE_FLOAT1]      = (void *) invalid_func;
    position_funcs[WINED3DDECLTYPE_FLOAT2]      = (void *) invalid_func;
    position_funcs[WINED3DDECLTYPE_FLOAT3]      = (void *) glVertex3fv;
    position_funcs[WINED3DDECLTYPE_FLOAT4]      = (void *) position_float4;
    position_funcs[WINED3DDECLTYPE_D3DCOLOR]    = (void *) position_d3dcolor;
    position_funcs[WINED3DDECLTYPE_UBYTE4]      = (void *) invalid_func;
    position_funcs[WINED3DDECLTYPE_SHORT2]      = (void *) invalid_func;
    position_funcs[WINED3DDECLTYPE_SHORT4]      = (void *) glVertex2sv;
    position_funcs[WINED3DDECLTYPE_UBYTE4N]     = (void *) invalid_func;
    position_funcs[WINED3DDECLTYPE_SHORT2N]     = (void *) invalid_func;
    position_funcs[WINED3DDECLTYPE_SHORT4N]     = (void *) invalid_func;
    position_funcs[WINED3DDECLTYPE_USHORT2N]    = (void *) invalid_func;
    position_funcs[WINED3DDECLTYPE_USHORT4N]    = (void *) invalid_func;
    position_funcs[WINED3DDECLTYPE_UDEC3]       = (void *) invalid_func;
    position_funcs[WINED3DDECLTYPE_DEC3N]       = (void *) invalid_func;
    position_funcs[WINED3DDECLTYPE_FLOAT16_2]   = (void *) invalid_func;
    position_funcs[WINED3DDECLTYPE_FLOAT16_4]   = (void *) invalid_func;

    diffuse_funcs[WINED3DDECLTYPE_FLOAT1]       = (void *) invalid_func;
    diffuse_funcs[WINED3DDECLTYPE_FLOAT2]       = (void *) invalid_func;
    diffuse_funcs[WINED3DDECLTYPE_FLOAT3]       = (void *) glColor3fv;
    diffuse_funcs[WINED3DDECLTYPE_FLOAT4]       = (void *) glColor4fv;
    diffuse_funcs[WINED3DDECLTYPE_D3DCOLOR]     = (void *) diffuse_d3dcolor;
    diffuse_funcs[WINED3DDECLTYPE_UBYTE4]       = (void *) invalid_func;
    diffuse_funcs[WINED3DDECLTYPE_SHORT2]       = (void *) invalid_func;
    diffuse_funcs[WINED3DDECLTYPE_SHORT4]       = (void *) invalid_func;
    diffuse_funcs[WINED3DDECLTYPE_UBYTE4N]      = (void *) glColor4ubv;
    diffuse_funcs[WINED3DDECLTYPE_SHORT2N]      = (void *) invalid_func;
    diffuse_funcs[WINED3DDECLTYPE_SHORT4N]      = (void *) glColor4sv;
    diffuse_funcs[WINED3DDECLTYPE_USHORT2N]     = (void *) invalid_func;
    diffuse_funcs[WINED3DDECLTYPE_USHORT4N]     = (void *) glColor4usv;
    diffuse_funcs[WINED3DDECLTYPE_UDEC3]        = (void *) invalid_func;
    diffuse_funcs[WINED3DDECLTYPE_DEC3N]        = (void *) invalid_func;
    diffuse_funcs[WINED3DDECLTYPE_FLOAT16_2]    = (void *) invalid_func;
    diffuse_funcs[WINED3DDECLTYPE_FLOAT16_4]    = (void *) invalid_func;

    /* No 4 component entry points here */
    specular_funcs[WINED3DDECLTYPE_FLOAT1]      = (void *) invalid_func;
    specular_funcs[WINED3DDECLTYPE_FLOAT2]      = (void *) invalid_func;
    if(GL_SUPPORT(EXT_SECONDARY_COLOR)) {
        specular_funcs[WINED3DDECLTYPE_FLOAT3]      = (void *) GL_EXTCALL(glSecondaryColor3fvEXT);
    } else {
        specular_funcs[WINED3DDECLTYPE_FLOAT3]      = (void *) warn_no_specular_func;
    }
    specular_funcs[WINED3DDECLTYPE_FLOAT4]      = (void *) invalid_func;
    if(GL_SUPPORT(EXT_SECONDARY_COLOR)) {
        specular_funcs[WINED3DDECLTYPE_D3DCOLOR]    = (void *) specular_d3dcolor;
    } else {
        specular_funcs[WINED3DDECLTYPE_D3DCOLOR]      = (void *) warn_no_specular_func;
    }
    specular_funcs[WINED3DDECLTYPE_UBYTE4]      = (void *) invalid_func;
    specular_funcs[WINED3DDECLTYPE_SHORT2]      = (void *) invalid_func;
    specular_funcs[WINED3DDECLTYPE_SHORT4]      = (void *) invalid_func;
    specular_funcs[WINED3DDECLTYPE_UBYTE4N]     = (void *) invalid_func;
    specular_funcs[WINED3DDECLTYPE_SHORT2N]     = (void *) invalid_func;
    specular_funcs[WINED3DDECLTYPE_SHORT4N]     = (void *) invalid_func;
    specular_funcs[WINED3DDECLTYPE_USHORT2N]    = (void *) invalid_func;
    specular_funcs[WINED3DDECLTYPE_USHORT4N]    = (void *) invalid_func;
    specular_funcs[WINED3DDECLTYPE_UDEC3]       = (void *) invalid_func;
    specular_funcs[WINED3DDECLTYPE_DEC3N]       = (void *) invalid_func;
    specular_funcs[WINED3DDECLTYPE_FLOAT16_2]   = (void *) invalid_func;
    specular_funcs[WINED3DDECLTYPE_FLOAT16_4]   = (void *) invalid_func;

    /* Only 3 component entry points here. Test how others behave. Float4 normals are used
     * by one of our tests, trying to pass it to the pixel shader, which fails on Windows.
     */
    normal_funcs[WINED3DDECLTYPE_FLOAT1]         = (void *) invalid_func;
    normal_funcs[WINED3DDECLTYPE_FLOAT2]         = (void *) invalid_func;
    normal_funcs[WINED3DDECLTYPE_FLOAT3]         = (void *) glNormal3fv;
    normal_funcs[WINED3DDECLTYPE_FLOAT4]         = (void *) glNormal3fv; /* Just ignore the 4th value */
    normal_funcs[WINED3DDECLTYPE_D3DCOLOR]       = (void *) invalid_func;
    normal_funcs[WINED3DDECLTYPE_UBYTE4]         = (void *) invalid_func;
    normal_funcs[WINED3DDECLTYPE_SHORT2]         = (void *) invalid_func;
    normal_funcs[WINED3DDECLTYPE_SHORT4]         = (void *) invalid_func;
    normal_funcs[WINED3DDECLTYPE_UBYTE4N]        = (void *) invalid_func;
    normal_funcs[WINED3DDECLTYPE_SHORT2N]        = (void *) invalid_func;
    normal_funcs[WINED3DDECLTYPE_SHORT4N]        = (void *) invalid_func;
    normal_funcs[WINED3DDECLTYPE_USHORT2N]       = (void *) invalid_func;
    normal_funcs[WINED3DDECLTYPE_USHORT4N]       = (void *) invalid_func;
    normal_funcs[WINED3DDECLTYPE_UDEC3]          = (void *) invalid_func;
    normal_funcs[WINED3DDECLTYPE_DEC3N]          = (void *) invalid_func;
    normal_funcs[WINED3DDECLTYPE_FLOAT16_2]      = (void *) invalid_func;
    normal_funcs[WINED3DDECLTYPE_FLOAT16_4]      = (void *) invalid_func;
}

#define PUSH1(att)        attribs[nAttribs++] = (att);
BOOL InitAdapters(void) {
    static HMODULE mod_gl;
    BOOL ret;
    int ps_selected_mode, vs_selected_mode;

    /* No need to hold any lock. The calling library makes sure only one thread calls
     * wined3d simultaneously
     */
    if(numAdapters > 0) return TRUE;

    TRACE("Initializing adapters\n");

    if(!mod_gl) {
#ifdef USE_WIN32_OPENGL
#define USE_GL_FUNC(pfn) pfn = (void*)GetProcAddress(mod_gl, #pfn);
        mod_gl = LoadLibraryA("opengl32.dll");
        if(!mod_gl) {
            ERR("Can't load opengl32.dll!\n");
            return FALSE;
        }
#else
#define USE_GL_FUNC(pfn) pfn = (void*)pwglGetProcAddress(#pfn);
        /* To bypass the opengl32 thunks load wglGetProcAddress from gdi32 (glXGetProcAddress wrapper) instead of opengl32's */
        mod_gl = GetModuleHandleA("gdi32.dll");
#endif
    }

/* Load WGL core functions from opengl32.dll */
#define USE_WGL_FUNC(pfn) p##pfn = (void*)GetProcAddress(mod_gl, #pfn);
    WGL_FUNCS_GEN;
#undef USE_WGL_FUNC

    if(!pwglGetProcAddress) {
        ERR("Unable to load wglGetProcAddress!\n");
        return FALSE;
    }

/* Dynamically load all GL core functions */
    GL_FUNCS_GEN;
#undef USE_GL_FUNC

    /* For now only one default adapter */
    {
        int iPixelFormat;
        int attribs[8];
        int values[8];
        int nAttribs = 0;
        int res;
        WineD3D_PixelFormat *cfgs;
        int attribute;
        DISPLAY_DEVICEW DisplayDevice;
        HDC hdc;

        TRACE("Initializing default adapter\n");
        Adapters[0].num = 0;
        Adapters[0].monitorPoint.x = -1;
        Adapters[0].monitorPoint.y = -1;

        if (!WineD3D_CreateFakeGLContext()) {
            ERR("Failed to get a gl context for default adapter\n");
            HeapFree(GetProcessHeap(), 0, Adapters);
            WineD3D_ReleaseFakeGLContext();
            return FALSE;
        }

        ret = IWineD3DImpl_FillGLCaps(&Adapters[0].gl_info);
        if(!ret) {
            ERR("Failed to initialize gl caps for default adapter\n");
            HeapFree(GetProcessHeap(), 0, Adapters);
            WineD3D_ReleaseFakeGLContext();
            return FALSE;
        }
        ret = initPixelFormats(&Adapters[0].gl_info);
        if(!ret) {
            ERR("Failed to init gl formats\n");
            HeapFree(GetProcessHeap(), 0, Adapters);
            WineD3D_ReleaseFakeGLContext();
            return FALSE;
        }

        hdc = pwglGetCurrentDC();
        if(!hdc) {
            ERR("Failed to get gl HDC\n");
            HeapFree(GetProcessHeap(), 0, Adapters);
            WineD3D_ReleaseFakeGLContext();
            return FALSE;
        }

        Adapters[0].driver = "Display";
        Adapters[0].description = "Direct3D HAL";

        /* Use the VideoRamSize registry setting when set */
        if(wined3d_settings.emulated_textureram)
            Adapters[0].TextureRam = wined3d_settings.emulated_textureram;
        else
            Adapters[0].TextureRam = Adapters[0].gl_info.vidmem;
        Adapters[0].UsedTextureRam = 0;
        TRACE("Emulating %dMB of texture ram\n", Adapters[0].TextureRam/(1024*1024));

        /* Initialize the Adapter's DeviceName which is required for ChangeDisplaySettings and friends */
        DisplayDevice.cb = sizeof(DisplayDevice);
        EnumDisplayDevicesW(NULL, 0 /* Adapter 0 = iDevNum 0 */, &DisplayDevice, 0);
        TRACE("DeviceName: %s\n", debugstr_w(DisplayDevice.DeviceName));
        strcpyW(Adapters[0].DeviceName, DisplayDevice.DeviceName);

        attribute = WGL_NUMBER_PIXEL_FORMATS_ARB;
        GL_EXTCALL(wglGetPixelFormatAttribivARB(hdc, 0, 0, 1, &attribute, &Adapters[0].nCfgs));

        Adapters[0].cfgs = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, Adapters[0].nCfgs *sizeof(WineD3D_PixelFormat));
        cfgs = Adapters[0].cfgs;
        PUSH1(WGL_RED_BITS_ARB)
        PUSH1(WGL_GREEN_BITS_ARB)
        PUSH1(WGL_BLUE_BITS_ARB)
        PUSH1(WGL_ALPHA_BITS_ARB)
        PUSH1(WGL_DEPTH_BITS_ARB)
        PUSH1(WGL_STENCIL_BITS_ARB)
        PUSH1(WGL_DRAW_TO_WINDOW_ARB)
        PUSH1(WGL_PIXEL_TYPE_ARB)

        for(iPixelFormat=1; iPixelFormat<=Adapters[0].nCfgs; iPixelFormat++) {
            res = GL_EXTCALL(wglGetPixelFormatAttribivARB(hdc, iPixelFormat, 0, nAttribs, attribs, values));

            if(!res)
                continue;

            /* Cache the pixel format */
            cfgs->iPixelFormat = iPixelFormat;
            cfgs->redSize = values[0];
            cfgs->greenSize = values[1];
            cfgs->blueSize = values[2];
            cfgs->alphaSize = values[3];
            cfgs->depthSize = values[4];
            cfgs->stencilSize = values[5];
            cfgs->windowDrawable = values[6];
            cfgs->iPixelType = values[7];

            cfgs->pbufferDrawable = FALSE;
            /* Check for pbuffer support when it is around as wglGetPixelFormatAttribiv fails for unknown
attributes. */
            if(GL_SUPPORT(WGL_ARB_PBUFFER)) {
                int attrib = WGL_DRAW_TO_PBUFFER_ARB;
                int value;
                if(GL_EXTCALL(wglGetPixelFormatAttribivARB(hdc, iPixelFormat, 0, 1, &attrib, &value)))
                    cfgs->pbufferDrawable = value;
            }

            TRACE("iPixelFormat=%d, iPixelType=%#x, RGBA=%d/%d/%d/%d, depth=%d, stencil=%d, windowDrawable=%d, pbufferDrawable=%d\n", cfgs->iPixelFormat, cfgs->iPixelType, cfgs->redSize, cfgs->greenSize, cfgs->blueSize, cfgs->alphaSize, cfgs->depthSize, cfgs->stencilSize, cfgs->windowDrawable, cfgs->pbufferDrawable);
            cfgs++;
        }

        fixup_extensions(&Adapters[0].gl_info);

        WineD3D_ReleaseFakeGLContext();

        select_shader_mode(&Adapters[0].gl_info, WINED3DDEVTYPE_HAL, &ps_selected_mode, &vs_selected_mode);
        select_shader_max_constants(ps_selected_mode, vs_selected_mode, &Adapters[0].gl_info);
        fillGLAttribFuncs(&Adapters[0].gl_info);
        init_type_lookup(&Adapters[0].gl_info);
    }
    numAdapters = 1;
    TRACE("%d adapters successfully initialized\n", numAdapters);

    return TRUE;
}
#undef PUSH1
#undef GLINFO_LOCATION

/**********************************************************
 * IWineD3D VTbl follows
 **********************************************************/

const IWineD3DVtbl IWineD3D_Vtbl =
{
    /* IUnknown */
    IWineD3DImpl_QueryInterface,
    IWineD3DImpl_AddRef,
    IWineD3DImpl_Release,
    /* IWineD3D */
    IWineD3DImpl_GetParent,
    IWineD3DImpl_GetAdapterCount,
    IWineD3DImpl_RegisterSoftwareDevice,
    IWineD3DImpl_GetAdapterMonitor,
    IWineD3DImpl_GetAdapterModeCount,
    IWineD3DImpl_EnumAdapterModes,
    IWineD3DImpl_GetAdapterDisplayMode,
    IWineD3DImpl_GetAdapterIdentifier,
    IWineD3DImpl_CheckDeviceMultiSampleType,
    IWineD3DImpl_CheckDepthStencilMatch,
    IWineD3DImpl_CheckDeviceType,
    IWineD3DImpl_CheckDeviceFormat,
    IWineD3DImpl_CheckDeviceFormatConversion,
    IWineD3DImpl_GetDeviceCaps,
    IWineD3DImpl_CreateDevice
};