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wined3d: Emulate R16G16F and R32G32F if GL_ARB_texture_rg is not supported. 

Nvidia doesn't offer it on geforce 7 and earlier cards, but some games need
it. This is surprising because the extension was made specifically for
compatibility purposes for older cards.
This commit is contained in:
Stefan Dösinger 2009-04-06 15:05:27 +02:00 committed by Alexandre Julliard
parent 1fbc6e560d
commit 8513f64a01
3 changed files with 44 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
dlls/wined3d/directx.c
View File

@ -2391,6 +2391,7 @@ static BOOL CheckTextureCapability(struct WineD3DAdapter *adapter,
/* Floating point formats */
case WINED3DFMT_R16_FLOAT:
case WINED3DFMT_R16G16_FLOAT:
case WINED3DFMT_R16G16B16A16_FLOAT:
if(GL_SUPPORT(ARB_TEXTURE_FLOAT) && GL_SUPPORT(ARB_HALF_FLOAT_PIXEL)) {
TRACE_(d3d_caps)("[OK]\n");
@ -2400,6 +2401,7 @@ static BOOL CheckTextureCapability(struct WineD3DAdapter *adapter,
return FALSE;
case WINED3DFMT_R32_FLOAT:
case WINED3DFMT_R32G32_FLOAT:
case WINED3DFMT_R32G32B32A32_FLOAT:
if (GL_SUPPORT(ARB_TEXTURE_FLOAT)) {
TRACE_(d3d_caps)("[OK]\n");
@ -2408,15 +2410,6 @@ static BOOL CheckTextureCapability(struct WineD3DAdapter *adapter,
TRACE_(d3d_caps)("[FAILED]\n");
return FALSE;
case WINED3DFMT_R16G16_FLOAT:
case WINED3DFMT_R32G32_FLOAT:
if(GL_SUPPORT(ARB_TEXTURE_RG)) {
TRACE_(d3d_caps)("[OK]\n");
return TRUE;
}
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.

40
dlls/wined3d/surface.c
View File

@ -1795,6 +1795,22 @@ HRESULT d3dfmt_get_conv(IWineD3DSurfaceImpl *This, BOOL need_alpha_ck, BOOL use_
*target_bpp = 6;
break;
case WINED3DFMT_R16G16_FLOAT:
*convert = CONVERT_R16G16F;
*format = GL_RGB;
*internal = GL_RGB16F_ARB;
*type = GL_HALF_FLOAT_ARB;
*target_bpp = 6;
break;
case WINED3DFMT_R32G32_FLOAT:
*convert = CONVERT_R32G32F;
*format = GL_RGB;
*internal = GL_RGB32F_ARB;
*type = GL_FLOAT;
*target_bpp = 12;
break;
default:
break;
}
@ -2123,6 +2139,7 @@ static HRESULT d3dfmt_convert_surface(const BYTE *src, BYTE *dst, UINT pitch, UI
}
case CONVERT_G16R16:
case CONVERT_R16G16F:
{
unsigned int x, y;
const WORD *Source;
@ -2136,6 +2153,9 @@ static HRESULT d3dfmt_convert_surface(const BYTE *src, BYTE *dst, UINT pitch, UI
WORD red = (*Source++);
Dest[0] = green;
Dest[1] = red;
/* Strictly speaking not correct for R16G16F, but it doesn't matter because the
* shader overwrites it anyway
*/
Dest[2] = 0xffff;
Dest += 3;
}
@ -2143,6 +2163,26 @@ static HRESULT d3dfmt_convert_surface(const BYTE *src, BYTE *dst, UINT pitch, UI
break;
}
case CONVERT_R32G32F:
{
unsigned int x, y;
const float *Source;
float *Dest;
for(y = 0; y < height; y++) {
Source = (const float *)(src + y * pitch);
Dest = (float *) (dst + y * outpitch);
for (x = 0; x < width; x++ ) {
float green = (*Source++);
float red = (*Source++);
Dest[0] = green;
Dest[1] = red;
Dest[2] = 1.0;
Dest += 3;
}
}
break;
}
default:
ERR("Unsupported conversation type %d\n", convert);
}

2
dlls/wined3d/wined3d_private.h
View File

@ -1824,6 +1824,8 @@ typedef enum {
CONVERT_V16U16,
CONVERT_A4L4,
CONVERT_G16R16,
CONVERT_R16G16F,
CONVERT_R32G32F,
} CONVERT_TYPES;
HRESULT d3dfmt_get_conv(IWineD3DSurfaceImpl *This, BOOL need_alpha_ck, BOOL use_texturing, GLenum *format, GLenum *internal, GLenum *type, CONVERT_TYPES *convert, int *target_bpp, BOOL srgb_mode);