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Sweden-Number/dlls/wined3d/buffer.c
Stefan Dösinger 68b15bc5ff wined3d: Give GL_ARB_map_buffer_range another try. 
Nvidia's 270.xx.yy driver series fix the glMapBuffer alignment issues that caused major
performance problems. If the user is using an older driver we now drop the VBO instead of using
doublebuffered loading, which means that we fall back to the current behavior(no dynamic VBO) as
needed. Dynamic VBOs are needed on Nvidia drivers for GL_ARB_instanced_arrays.
2011-06-17 15:37:45 +02:00

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/*
* Copyright 2002-2005 Jason Edmeades
* Copyright 2002-2005 Raphael Junqueira
* Copyright 2004 Christian Costa
* Copyright 2005 Oliver Stieber
* Copyright 2007-2010 Stefan Dösinger for CodeWeavers
* Copyright 2009-2010 Henri Verbeet for CodeWeavers
*
* 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
*
*/
#include "config.h"
#include "wine/port.h"
#include "wined3d_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(d3d);
#define VB_MAXDECLCHANGES 100 /* After that number of decl changes we stop converting */
#define VB_RESETDECLCHANGE 1000 /* Reset the decl changecount after that number of draws */
#define VB_MAXFULLCONVERSIONS 5 /* Number of full conversions before we stop converting */
#define VB_RESETFULLCONVS 20 /* Reset full conversion counts after that number of draws */
static inline BOOL buffer_add_dirty_area(struct wined3d_buffer *This, UINT offset, UINT size)
{
if (!This->buffer_object) return TRUE;
if (This->maps_size <= This->modified_areas)
{
void *new = HeapReAlloc(GetProcessHeap(), 0, This->maps,
This->maps_size * 2 * sizeof(*This->maps));
if (!new)
{
ERR("Out of memory\n");
return FALSE;
}
else
{
This->maps = new;
This->maps_size *= 2;
}
}
if(offset > This->resource.size || offset + size > This->resource.size)
{
WARN("Invalid range dirtified, marking entire buffer dirty\n");
offset = 0;
size = This->resource.size;
}
else if(!offset && !size)
{
size = This->resource.size;
}
This->maps[This->modified_areas].offset = offset;
This->maps[This->modified_areas].size = size;
This->modified_areas++;
return TRUE;
}
static inline void buffer_clear_dirty_areas(struct wined3d_buffer *This)
{
This->modified_areas = 0;
}
static inline BOOL buffer_is_dirty(struct wined3d_buffer *This)
{
return !!This->modified_areas;
}
static inline BOOL buffer_is_fully_dirty(struct wined3d_buffer *This)
{
unsigned int i;
for(i = 0; i < This->modified_areas; i++)
{
if (!This->maps[i].offset && This->maps[i].size == This->resource.size)
{
return TRUE;
}
}
return FALSE;
}
/* Context activation is done by the caller */
static void delete_gl_buffer(struct wined3d_buffer *This, const struct wined3d_gl_info *gl_info)
{
if(!This->buffer_object) return;
ENTER_GL();
GL_EXTCALL(glDeleteBuffersARB(1, &This->buffer_object));
checkGLcall("glDeleteBuffersARB");
LEAVE_GL();
This->buffer_object = 0;
if(This->query)
{
wined3d_event_query_destroy(This->query);
This->query = NULL;
}
This->flags &= ~WINED3D_BUFFER_APPLESYNC;
}
/* Context activation is done by the caller. */
static void buffer_create_buffer_object(struct wined3d_buffer *This, const struct wined3d_gl_info *gl_info)
{
GLenum error, gl_usage;
TRACE("Creating an OpenGL vertex buffer object for IWineD3DVertexBuffer %p Usage(%s)\n",
This, debug_d3dusage(This->resource.usage));
ENTER_GL();
/* Make sure that the gl error is cleared. Do not use checkGLcall
* here because checkGLcall just prints a fixme and continues. However,
* if an error during VBO creation occurs we can fall back to non-vbo operation
* with full functionality(but performance loss)
*/
while (glGetError() != GL_NO_ERROR);
/* Basically the FVF parameter passed to CreateVertexBuffer is no good
* It is the FVF set with IWineD3DDevice::SetFVF or the Vertex Declaration set with
* IWineD3DDevice::SetVertexDeclaration that decides how the vertices in the buffer
* look like. This means that on each DrawPrimitive call the vertex buffer has to be verified
* to check if the rhw and color values are in the correct format.
*/
GL_EXTCALL(glGenBuffersARB(1, &This->buffer_object));
error = glGetError();
if (!This->buffer_object || error != GL_NO_ERROR)
{
ERR("Failed to create a VBO with error %s (%#x)\n", debug_glerror(error), error);
LEAVE_GL();
goto fail;
}
if (This->buffer_type_hint == GL_ELEMENT_ARRAY_BUFFER_ARB)
device_invalidate_state(This->resource.device, STATE_INDEXBUFFER);
GL_EXTCALL(glBindBufferARB(This->buffer_type_hint, This->buffer_object));
error = glGetError();
if (error != GL_NO_ERROR)
{
ERR("Failed to bind the VBO with error %s (%#x)\n", debug_glerror(error), error);
LEAVE_GL();
goto fail;
}
/* Don't use static, because dx apps tend to update the buffer
* quite often even if they specify 0 usage.
*/
if(This->resource.usage & WINED3DUSAGE_DYNAMIC)
{
TRACE("Gl usage = GL_STREAM_DRAW_ARB\n");
gl_usage = GL_STREAM_DRAW_ARB;
if(gl_info->supported[APPLE_FLUSH_BUFFER_RANGE])
{
GL_EXTCALL(glBufferParameteriAPPLE(This->buffer_type_hint, GL_BUFFER_FLUSHING_UNMAP_APPLE, GL_FALSE));
checkGLcall("glBufferParameteriAPPLE(This->buffer_type_hint, GL_BUFFER_FLUSHING_UNMAP_APPLE, GL_FALSE)");
This->flags |= WINED3D_BUFFER_FLUSH;
GL_EXTCALL(glBufferParameteriAPPLE(This->buffer_type_hint, GL_BUFFER_SERIALIZED_MODIFY_APPLE, GL_FALSE));
checkGLcall("glBufferParameteriAPPLE(This->buffer_type_hint, GL_BUFFER_SERIALIZED_MODIFY_APPLE, GL_FALSE)");
This->flags |= WINED3D_BUFFER_APPLESYNC;
}
/* No setup is needed here for GL_ARB_map_buffer_range */
}
else
{
TRACE("Gl usage = GL_DYNAMIC_DRAW_ARB\n");
gl_usage = GL_DYNAMIC_DRAW_ARB;
}
/* Reserve memory for the buffer. The amount of data won't change
* so we are safe with calling glBufferData once and
* calling glBufferSubData on updates. Upload the actual data in case
* we're not double buffering, so we can release the heap mem afterwards
*/
GL_EXTCALL(glBufferDataARB(This->buffer_type_hint, This->resource.size, This->resource.allocatedMemory, gl_usage));
error = glGetError();
LEAVE_GL();
if (error != GL_NO_ERROR)
{
ERR("glBufferDataARB failed with error %s (%#x)\n", debug_glerror(error), error);
goto fail;
}
This->buffer_object_size = This->resource.size;
This->buffer_object_usage = gl_usage;
if(This->flags & WINED3D_BUFFER_DOUBLEBUFFER)
{
if(!buffer_add_dirty_area(This, 0, 0))
{
ERR("buffer_add_dirty_area failed, this is not expected\n");
goto fail;
}
}
else
{
HeapFree(GetProcessHeap(), 0, This->resource.heapMemory);
This->resource.allocatedMemory = NULL;
This->resource.heapMemory = NULL;
}
return;
fail:
/* Clean up all vbo init, but continue because we can work without a vbo :-) */
ERR("Failed to create a vertex buffer object. Continuing, but performance issues may occur\n");
delete_gl_buffer(This, gl_info);
buffer_clear_dirty_areas(This);
}
static BOOL buffer_process_converted_attribute(struct wined3d_buffer *This,
const enum wined3d_buffer_conversion_type conversion_type,
const struct wined3d_stream_info_element *attrib, DWORD *stride_this_run)
{
DWORD offset = This->resource.device->stateBlock->state.streams[attrib->stream_idx].offset;
DWORD attrib_size;
BOOL ret = FALSE;
unsigned int i;
DWORD_PTR data;
/* Check for some valid situations which cause us pain. One is if the buffer is used for
* constant attributes(stride = 0), the other one is if the buffer is used on two streams
* with different strides. In the 2nd case we might have to drop conversion entirely,
* it is possible that the same bytes are once read as FLOAT2 and once as UBYTE4N.
*/
if (!attrib->stride)
{
FIXME("%s used with stride 0, let's hope we get the vertex stride from somewhere else\n",
debug_d3dformat(attrib->format->id));
}
else if(attrib->stride != *stride_this_run && *stride_this_run)
{
FIXME("Got two concurrent strides, %d and %d\n", attrib->stride, *stride_this_run);
}
else
{
*stride_this_run = attrib->stride;
if (This->stride != *stride_this_run)
{
/* We rely that this happens only on the first converted attribute that is found,
* if at all. See above check
*/
TRACE("Reconverting because converted attributes occur, and the stride changed\n");
This->stride = *stride_this_run;
HeapFree(GetProcessHeap(), HEAP_ZERO_MEMORY, This->conversion_map);
This->conversion_map = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(*This->conversion_map) * This->stride);
ret = TRUE;
}
}
data = (((DWORD_PTR)attrib->data) + offset) % This->stride;
attrib_size = attrib->format->component_count * attrib->format->component_size;
for (i = 0; i < attrib_size; ++i)
{
DWORD_PTR idx = (data + i) % This->stride;
if (This->conversion_map[idx] != conversion_type)
{
TRACE("Byte %ld in vertex changed\n", idx);
TRACE("It was type %d, is %d now\n", This->conversion_map[idx], conversion_type);
ret = TRUE;
This->conversion_map[idx] = conversion_type;
}
}
return ret;
}
static BOOL buffer_check_attribute(struct wined3d_buffer *This, const struct wined3d_stream_info *si,
UINT attrib_idx, const BOOL check_d3dcolor, const BOOL is_ffp_position, const BOOL is_ffp_color,
DWORD *stride_this_run)
{
const struct wined3d_stream_info_element *attrib = &si->elements[attrib_idx];
enum wined3d_format_id format;
BOOL ret = FALSE;
/* Ignore attributes that do not have our vbo. After that check we can be sure that the attribute is
* there, on nonexistent attribs the vbo is 0.
*/
if (!(si->use_map & (1 << attrib_idx))
|| attrib->buffer_object != This->buffer_object)
return FALSE;
format = attrib->format->id;
/* Look for newly appeared conversion */
if (check_d3dcolor && format == WINED3DFMT_B8G8R8A8_UNORM)
{
ret = buffer_process_converted_attribute(This, CONV_D3DCOLOR, attrib, stride_this_run);
if (!is_ffp_color) FIXME("Test for non-color fixed function WINED3DFMT_B8G8R8A8_UNORM format\n");
}
else if (is_ffp_position && format == WINED3DFMT_R32G32B32A32_FLOAT)
{
ret = buffer_process_converted_attribute(This, CONV_POSITIONT, attrib, stride_this_run);
}
else if (This->conversion_map)
{
ret = buffer_process_converted_attribute(This, CONV_NONE, attrib, stride_this_run);
}
return ret;
}
static BOOL buffer_find_decl(struct wined3d_buffer *This)
{
struct wined3d_device *device = This->resource.device;
const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
const struct wined3d_stream_info *si = &device->strided_streams;
const struct wined3d_state *state = &device->stateBlock->state;
UINT stride_this_run = 0;
BOOL ret = FALSE;
BOOL support_d3dcolor = gl_info->supported[ARB_VERTEX_ARRAY_BGRA];
/* In d3d7 the vertex buffer declaration NEVER changes because it is stored in the d3d7 vertex buffer.
* Once we have our declaration there is no need to look it up again. Index buffers also never need
* conversion, so once the (empty) conversion structure is created don't bother checking again
*/
if (This->flags & WINED3D_BUFFER_HASDESC)
{
if(This->resource.usage & WINED3DUSAGE_STATICDECL) return FALSE;
}
if (use_vs(state))
{
TRACE("Vertex shaders used, no VBO conversion is needed\n");
if(This->conversion_map)
{
HeapFree(GetProcessHeap(), 0, This->conversion_map);
This->conversion_map = NULL;
This->stride = 0;
return TRUE;
}
return FALSE;
}
TRACE("Finding vertex buffer conversion information\n");
/* Certain declaration types need some fixups before we can pass them to
* opengl. This means D3DCOLOR attributes with fixed function vertex
* processing, FLOAT4 POSITIONT with fixed function, and FLOAT16 if
* GL_ARB_half_float_vertex is not supported.
*
* Note for d3d8 and d3d9:
* The vertex buffer FVF doesn't help with finding them, we have to use
* the decoded vertex declaration and pick the things that concern the
* current buffer. A problem with this is that this can change between
* draws, so we have to validate the information and reprocess the buffer
* if it changes, and avoid false positives for performance reasons.
* WineD3D doesn't even know the vertex buffer any more, it is managed
* by the client libraries and passed to SetStreamSource and ProcessVertices
* as needed.
*
* We have to distinguish between vertex shaders and fixed function to
* pick the way we access the strided vertex information.
*
* This code sets up a per-byte array with the size of the detected
* stride of the arrays in the buffer. For each byte we have a field
* that marks the conversion needed on this byte. For example, the
* following declaration with fixed function vertex processing:
*
* POSITIONT, FLOAT4
* NORMAL, FLOAT3
* DIFFUSE, FLOAT16_4
* SPECULAR, D3DCOLOR
*
* Will result in
* { POSITIONT }{ NORMAL }{ DIFFUSE }{SPECULAR }
* [P][P][P][P][P][P][P][P][P][P][P][P][P][P][P][P][0][0][0][0][0][0][0][0][0][0][0][0][F][F][F][F][F][F][F][F][C][C][C][C]
*
* Where in this example map P means 4 component position conversion, 0
* means no conversion, F means FLOAT16_2 conversion and C means D3DCOLOR
* conversion (red / blue swizzle).
*
* If we're doing conversion and the stride changes we have to reconvert
* the whole buffer. Note that we do not mind if the semantic changes,
* we only care for the conversion type. So if the NORMAL is replaced
* with a TEXCOORD, nothing has to be done, or if the DIFFUSE is replaced
* with a D3DCOLOR BLENDWEIGHT we can happily dismiss the change. Some
* conversion types depend on the semantic as well, for example a FLOAT4
* texcoord needs no conversion while a FLOAT4 positiont needs one
*/
ret = buffer_check_attribute(This, si, WINED3D_FFP_POSITION,
TRUE, TRUE, FALSE, &stride_this_run) || ret;
ret = buffer_check_attribute(This, si, WINED3D_FFP_NORMAL,
TRUE, FALSE, FALSE, &stride_this_run) || ret;
ret = buffer_check_attribute(This, si, WINED3D_FFP_DIFFUSE,
!support_d3dcolor, FALSE, TRUE, &stride_this_run) || ret;
ret = buffer_check_attribute(This, si, WINED3D_FFP_SPECULAR,
!support_d3dcolor, FALSE, TRUE, &stride_this_run) || ret;
ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD0,
TRUE, FALSE, FALSE, &stride_this_run) || ret;
ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD1,
TRUE, FALSE, FALSE, &stride_this_run) || ret;
ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD2,
TRUE, FALSE, FALSE, &stride_this_run) || ret;
ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD3,
TRUE, FALSE, FALSE, &stride_this_run) || ret;
ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD4,
TRUE, FALSE, FALSE, &stride_this_run) || ret;
ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD5,
TRUE, FALSE, FALSE, &stride_this_run) || ret;
ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD6,
TRUE, FALSE, FALSE, &stride_this_run) || ret;
ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD7,
TRUE, FALSE, FALSE, &stride_this_run) || ret;
if (!stride_this_run && This->conversion_map)
{
/* Sanity test */
if (!ret) ERR("no converted attributes found, old conversion map exists, and no declaration change?\n");
HeapFree(GetProcessHeap(), 0, This->conversion_map);
This->conversion_map = NULL;
This->stride = 0;
}
if (ret) TRACE("Conversion information changed\n");
return ret;
}
static inline void fixup_d3dcolor(DWORD *dst_color)
{
DWORD src_color = *dst_color;
/* Color conversion like in drawStridedSlow. watch out for little endianity
* If we want that stuff to work on big endian machines too we have to consider more things
*
* 0xff000000: Alpha mask
* 0x00ff0000: Blue mask
* 0x0000ff00: Green mask
* 0x000000ff: Red mask
*/
*dst_color = 0;
*dst_color |= (src_color & 0xff00ff00); /* Alpha Green */
*dst_color |= (src_color & 0x00ff0000) >> 16; /* Red */
*dst_color |= (src_color & 0x000000ff) << 16; /* Blue */
}
static inline void fixup_transformed_pos(float *p)
{
/* rhw conversion like in position_float4(). */
if (p[3] != 1.0f && p[3] != 0.0f)
{
float w = 1.0f / p[3];
p[0] *= w;
p[1] *= w;
p[2] *= w;
p[3] = w;
}
}
/* Context activation is done by the caller. */
const BYTE *buffer_get_memory(struct wined3d_buffer *buffer,
const struct wined3d_gl_info *gl_info, GLuint *buffer_object)
{
*buffer_object = buffer->buffer_object;
if (!buffer->buffer_object)
{
if (buffer->flags & WINED3D_BUFFER_CREATEBO)
{
buffer_create_buffer_object(buffer, gl_info);
buffer->flags &= ~WINED3D_BUFFER_CREATEBO;
if (buffer->buffer_object)
{
*buffer_object = buffer->buffer_object;
return NULL;
}
}
return buffer->resource.allocatedMemory;
}
else
{
return NULL;
}
}
ULONG CDECL wined3d_buffer_incref(struct wined3d_buffer *buffer)
{
ULONG refcount = InterlockedIncrement(&buffer->resource.ref);
TRACE("%p increasing refcount to %u.\n", buffer, refcount);
return refcount;
}
/* Context activation is done by the caller. */
BYTE *buffer_get_sysmem(struct wined3d_buffer *This, const struct wined3d_gl_info *gl_info)
{
/* AllocatedMemory exists if the buffer is double buffered or has no buffer object at all */
if(This->resource.allocatedMemory) return This->resource.allocatedMemory;
This->resource.heapMemory = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, This->resource.size + RESOURCE_ALIGNMENT);
This->resource.allocatedMemory = (BYTE *)(((ULONG_PTR)This->resource.heapMemory + (RESOURCE_ALIGNMENT - 1)) & ~(RESOURCE_ALIGNMENT - 1));
if (This->buffer_type_hint == GL_ELEMENT_ARRAY_BUFFER_ARB)
device_invalidate_state(This->resource.device, STATE_INDEXBUFFER);
ENTER_GL();
GL_EXTCALL(glBindBufferARB(This->buffer_type_hint, This->buffer_object));
GL_EXTCALL(glGetBufferSubDataARB(This->buffer_type_hint, 0, This->resource.size, This->resource.allocatedMemory));
LEAVE_GL();
This->flags |= WINED3D_BUFFER_DOUBLEBUFFER;
return This->resource.allocatedMemory;
}
/* Do not call while under the GL lock. */
static void buffer_unload(struct wined3d_resource *resource)
{
struct wined3d_buffer *buffer = buffer_from_resource(resource);
TRACE("buffer %p.\n", buffer);
if (buffer->buffer_object)
{
struct wined3d_device *device = resource->device;
struct wined3d_context *context;
context = context_acquire(device, NULL);
/* Download the buffer, but don't permanently enable double buffering */
if (!(buffer->flags & WINED3D_BUFFER_DOUBLEBUFFER))
{
buffer_get_sysmem(buffer, context->gl_info);
buffer->flags &= ~WINED3D_BUFFER_DOUBLEBUFFER;
}
delete_gl_buffer(buffer, context->gl_info);
buffer->flags |= WINED3D_BUFFER_CREATEBO; /* Recreate the buffer object next load */
buffer_clear_dirty_areas(buffer);
context_release(context);
HeapFree(GetProcessHeap(), 0, buffer->conversion_map);
buffer->conversion_map = NULL;
buffer->stride = 0;
buffer->conversion_stride = 0;
buffer->flags &= ~WINED3D_BUFFER_HASDESC;
}
resource_unload(resource);
}
/* Do not call while under the GL lock. */
ULONG CDECL wined3d_buffer_decref(struct wined3d_buffer *buffer)
{
ULONG refcount = InterlockedDecrement(&buffer->resource.ref);
TRACE("%p decreasing refcount to %u.\n", buffer, refcount);
if (!refcount)
{
buffer_unload(&buffer->resource);
resource_cleanup(&buffer->resource);
buffer->resource.parent_ops->wined3d_object_destroyed(buffer->resource.parent);
HeapFree(GetProcessHeap(), 0, buffer->maps);
HeapFree(GetProcessHeap(), 0, buffer);
}
return refcount;
}
void * CDECL wined3d_buffer_get_parent(const struct wined3d_buffer *buffer)
{
TRACE("buffer %p.\n", buffer);
return buffer->resource.parent;
}
DWORD CDECL wined3d_buffer_set_priority(struct wined3d_buffer *buffer, DWORD priority)
{
return resource_set_priority(&buffer->resource, priority);
}
DWORD CDECL wined3d_buffer_get_priority(const struct wined3d_buffer *buffer)
{
return resource_get_priority(&buffer->resource);
}
/* The caller provides a context and binds the buffer */
static void buffer_sync_apple(struct wined3d_buffer *This, DWORD flags, const struct wined3d_gl_info *gl_info)
{
enum wined3d_event_query_result ret;
/* No fencing needs to be done if the app promises not to overwrite
* existing data */
if(flags & WINED3DLOCK_NOOVERWRITE) return;
if(flags & WINED3DLOCK_DISCARD)
{
ENTER_GL();
GL_EXTCALL(glBufferDataARB(This->buffer_type_hint, This->resource.size, NULL, This->buffer_object_usage));
checkGLcall("glBufferDataARB\n");
LEAVE_GL();
return;
}
if(!This->query)
{
TRACE("Creating event query for buffer %p\n", This);
if (!wined3d_event_query_supported(gl_info))
{
FIXME("Event queries not supported, dropping async buffer locks.\n");
goto drop_query;
}
This->query = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*This->query));
if (!This->query)
{
ERR("Failed to allocate event query memory, dropping async buffer locks.\n");
goto drop_query;
}
/* Since we don't know about old draws a glFinish is needed once */
wglFinish();
return;
}
TRACE("Synchronizing buffer %p\n", This);
ret = wined3d_event_query_finish(This->query, This->resource.device);
switch(ret)
{
case WINED3D_EVENT_QUERY_NOT_STARTED:
case WINED3D_EVENT_QUERY_OK:
/* All done */
return;
case WINED3D_EVENT_QUERY_WRONG_THREAD:
WARN("Cannot synchronize buffer lock due to a thread conflict\n");
goto drop_query;
default:
ERR("wined3d_event_query_finish returned %u, dropping async buffer locks\n", ret);
goto drop_query;
}
drop_query:
if(This->query)
{
wined3d_event_query_destroy(This->query);
This->query = NULL;
}
wglFinish();
ENTER_GL();
GL_EXTCALL(glBufferParameteriAPPLE(This->buffer_type_hint, GL_BUFFER_SERIALIZED_MODIFY_APPLE, GL_TRUE));
checkGLcall("glBufferParameteriAPPLE(This->buffer_type_hint, GL_BUFFER_SERIALIZED_MODIFY_APPLE, GL_TRUE)");
LEAVE_GL();
This->flags &= ~WINED3D_BUFFER_APPLESYNC;
}
/* The caller provides a GL context */
static void buffer_direct_upload(struct wined3d_buffer *This, const struct wined3d_gl_info *gl_info, DWORD flags)
{
BYTE *map;
UINT start = 0, len = 0;
ENTER_GL();
/* This potentially invalidates the element array buffer binding, but the
* caller always takes care of this. */
GL_EXTCALL(glBindBufferARB(This->buffer_type_hint, This->buffer_object));
checkGLcall("glBindBufferARB");
if (gl_info->supported[ARB_MAP_BUFFER_RANGE])
{
GLbitfield mapflags;
mapflags = GL_MAP_WRITE_BIT | GL_MAP_FLUSH_EXPLICIT_BIT;
if (flags & WINED3D_BUFFER_DISCARD)
{
mapflags |= GL_MAP_UNSYNCHRONIZED_BIT | GL_MAP_INVALIDATE_BUFFER_BIT;
}
else if (flags & WINED3D_BUFFER_NOSYNC)
{
mapflags |= GL_MAP_UNSYNCHRONIZED_BIT;
}
map = GL_EXTCALL(glMapBufferRange(This->buffer_type_hint, 0,
This->resource.size, mapflags));
checkGLcall("glMapBufferRange");
}
else
{
if (This->flags & WINED3D_BUFFER_APPLESYNC)
{
DWORD syncflags = 0;
if (flags & WINED3D_BUFFER_DISCARD) syncflags |= WINED3DLOCK_DISCARD;
if (flags & WINED3D_BUFFER_NOSYNC) syncflags |= WINED3DLOCK_NOOVERWRITE;
LEAVE_GL();
buffer_sync_apple(This, syncflags, gl_info);
ENTER_GL();
}
map = GL_EXTCALL(glMapBufferARB(This->buffer_type_hint, GL_WRITE_ONLY_ARB));
checkGLcall("glMapBufferARB");
}
if (!map)
{
LEAVE_GL();
ERR("Failed to map opengl buffer\n");
return;
}
while (This->modified_areas)
{
This->modified_areas--;
start = This->maps[This->modified_areas].offset;
len = This->maps[This->modified_areas].size;
memcpy(map + start, This->resource.allocatedMemory + start, len);
if (gl_info->supported[ARB_MAP_BUFFER_RANGE])
{
GL_EXTCALL(glFlushMappedBufferRange(This->buffer_type_hint, start, len));
checkGLcall("glFlushMappedBufferRange");
}
else if (This->flags & WINED3D_BUFFER_FLUSH)
{
GL_EXTCALL(glFlushMappedBufferRangeAPPLE(This->buffer_type_hint, start, len));
checkGLcall("glFlushMappedBufferRangeAPPLE");
}
}
GL_EXTCALL(glUnmapBufferARB(This->buffer_type_hint));
checkGLcall("glUnmapBufferARB");
LEAVE_GL();
}
/* Do not call while under the GL lock. */
void CDECL wined3d_buffer_preload(struct wined3d_buffer *buffer)
{
DWORD flags = buffer->flags & (WINED3D_BUFFER_NOSYNC | WINED3D_BUFFER_DISCARD);
struct wined3d_device *device = buffer->resource.device;
UINT start = 0, end = 0, len = 0, vertices;
const struct wined3d_gl_info *gl_info;
struct wined3d_context *context;
BOOL decl_changed = FALSE;
unsigned int i, j;
BYTE *data;
TRACE("buffer %p.\n", buffer);
buffer->flags &= ~(WINED3D_BUFFER_NOSYNC | WINED3D_BUFFER_DISCARD);
if (!buffer->buffer_object)
{
/* TODO: Make converting independent from VBOs */
if (buffer->flags & WINED3D_BUFFER_CREATEBO)
{
context = context_acquire(device, NULL);
buffer_create_buffer_object(buffer, context->gl_info);
context_release(context);
buffer->flags &= ~WINED3D_BUFFER_CREATEBO;
}
else
{
/* Not doing any conversion */
return;
}
}
/* Reading the declaration makes only sense if the stateblock is finalized and the buffer bound to a stream */
if (device->isInDraw && buffer->bind_count > 0)
{
decl_changed = buffer_find_decl(buffer);
buffer->flags |= WINED3D_BUFFER_HASDESC;
}
if (!decl_changed && !(buffer->flags & WINED3D_BUFFER_HASDESC && buffer_is_dirty(buffer)))
{
++buffer->draw_count;
if (buffer->draw_count > VB_RESETDECLCHANGE)
buffer->decl_change_count = 0;
if (buffer->draw_count > VB_RESETFULLCONVS)
buffer->full_conversion_count = 0;
return;
}
/* If applications change the declaration over and over, reconverting all the time is a huge
* performance hit. So count the declaration changes and release the VBO if there are too many
* of them (and thus stop converting)
*/
if (decl_changed)
{
++buffer->decl_change_count;
buffer->draw_count = 0;
if (buffer->decl_change_count > VB_MAXDECLCHANGES
|| (buffer->conversion_map && (buffer->resource.usage & WINED3DUSAGE_DYNAMIC)))
{
FIXME("Too many declaration changes or converting dynamic buffer, stopping converting\n");
buffer_unload(&buffer->resource);
buffer->flags &= ~WINED3D_BUFFER_CREATEBO;
/* The stream source state handler might have read the memory of
* the vertex buffer already and got the memory in the vbo which
* is not valid any longer. Dirtify the stream source to force a
* reload. This happens only once per changed vertexbuffer and
* should occur rather rarely. */
device_invalidate_state(device, STATE_STREAMSRC);
return;
}
/* The declaration changed, reload the whole buffer */
WARN("Reloading buffer because of decl change\n");
buffer_clear_dirty_areas(buffer);
if (!buffer_add_dirty_area(buffer, 0, 0))
{
ERR("buffer_add_dirty_area failed, this is not expected\n");
return;
}
/* Avoid unfenced updates, we might overwrite more areas of the buffer than the application
* cleared for unsynchronized updates
*/
flags = 0;
}
else
{
/* However, it is perfectly fine to change the declaration every now and then. We don't want a game that
* changes it every minute drop the VBO after VB_MAX_DECL_CHANGES minutes. So count draws without
* decl changes and reset the decl change count after a specific number of them
*/
if (buffer->conversion_map && buffer_is_fully_dirty(buffer))
{
++buffer->full_conversion_count;
if (buffer->full_conversion_count > VB_MAXFULLCONVERSIONS)
{
FIXME("Too many full buffer conversions, stopping converting.\n");
buffer_unload(&buffer->resource);
buffer->flags &= ~WINED3D_BUFFER_CREATEBO;
device_invalidate_state(device, STATE_STREAMSRC);
return;
}
}
else
{
++buffer->draw_count;
if (buffer->draw_count > VB_RESETDECLCHANGE)
buffer->decl_change_count = 0;
if (buffer->draw_count > VB_RESETFULLCONVS)
buffer->full_conversion_count = 0;
}
}
if (buffer->buffer_type_hint == GL_ELEMENT_ARRAY_BUFFER_ARB)
device_invalidate_state(device, STATE_INDEXBUFFER);
if (!buffer->conversion_map)
{
/* That means that there is nothing to fixup. Just upload from
* buffer->resource.allocatedMemory directly into the vbo. Do not
* free the system memory copy because drawPrimitive may need it if
* the stride is 0, for instancing emulation, vertex blending
* emulation or shader emulation. */
TRACE("No conversion needed.\n");
/* Nothing to do because we locked directly into the vbo */
if (!(buffer->flags & WINED3D_BUFFER_DOUBLEBUFFER))
{
return;
}
context = context_acquire(device, NULL);
buffer_direct_upload(buffer, context->gl_info, flags);
context_release(context);
return;
}
context = context_acquire(device, NULL);
gl_info = context->gl_info;
if(!(buffer->flags & WINED3D_BUFFER_DOUBLEBUFFER))
{
buffer_get_sysmem(buffer, gl_info);
}
/* Now for each vertex in the buffer that needs conversion */
vertices = buffer->resource.size / buffer->stride;
data = HeapAlloc(GetProcessHeap(), 0, buffer->resource.size);
while(buffer->modified_areas)
{
buffer->modified_areas--;
start = buffer->maps[buffer->modified_areas].offset;
len = buffer->maps[buffer->modified_areas].size;
end = start + len;
memcpy(data + start, buffer->resource.allocatedMemory + start, end - start);
for (i = start / buffer->stride; i < min((end / buffer->stride) + 1, vertices); ++i)
{
for (j = 0; j < buffer->stride; ++j)
{
switch (buffer->conversion_map[j])
{
case CONV_NONE:
/* Done already */
j += 3;
break;
case CONV_D3DCOLOR:
fixup_d3dcolor((DWORD *) (data + i * buffer->stride + j));
j += 3;
break;
case CONV_POSITIONT:
fixup_transformed_pos((float *) (data + i * buffer->stride + j));
j += 15;
break;
default:
FIXME("Unimplemented conversion %d in shifted conversion\n", buffer->conversion_map[j]);
}
}
}
ENTER_GL();
GL_EXTCALL(glBindBufferARB(buffer->buffer_type_hint, buffer->buffer_object));
checkGLcall("glBindBufferARB");
GL_EXTCALL(glBufferSubDataARB(buffer->buffer_type_hint, start, len, data + start));
checkGLcall("glBufferSubDataARB");
LEAVE_GL();
}
HeapFree(GetProcessHeap(), 0, data);
context_release(context);
}
static DWORD buffer_sanitize_flags(struct wined3d_buffer *buffer, DWORD flags)
{
/* Not all flags make sense together, but Windows never returns an error. Catch the
* cases that could cause issues */
if(flags & WINED3DLOCK_READONLY)
{
if(flags & WINED3DLOCK_DISCARD)
{
WARN("WINED3DLOCK_READONLY combined with WINED3DLOCK_DISCARD, ignoring flags\n");
return 0;
}
if(flags & WINED3DLOCK_NOOVERWRITE)
{
WARN("WINED3DLOCK_READONLY combined with WINED3DLOCK_NOOVERWRITE, ignoring flags\n");
return 0;
}
}
else if((flags & (WINED3DLOCK_DISCARD | WINED3DLOCK_NOOVERWRITE)) == (WINED3DLOCK_DISCARD | WINED3DLOCK_NOOVERWRITE))
{
WARN("WINED3DLOCK_DISCARD and WINED3DLOCK_NOOVERWRITE used together, ignoring\n");
return 0;
}
else if (flags & (WINED3DLOCK_DISCARD | WINED3DLOCK_NOOVERWRITE) && !(buffer->resource.usage & WINED3DUSAGE_DYNAMIC))
{
WARN("DISCARD or NOOVERWRITE lock on non-dynamic buffer, ignoring\n");
return 0;
}
return flags;
}
static GLbitfield buffer_gl_map_flags(DWORD d3d_flags)
{
GLbitfield ret = 0;
if (!(d3d_flags & WINED3DLOCK_READONLY)) ret = GL_MAP_WRITE_BIT | GL_MAP_FLUSH_EXPLICIT_BIT;
if (d3d_flags & (WINED3DLOCK_DISCARD | WINED3DLOCK_NOOVERWRITE))
{
if(d3d_flags & WINED3DLOCK_DISCARD) ret |= GL_MAP_INVALIDATE_BUFFER_BIT;
ret |= GL_MAP_UNSYNCHRONIZED_BIT;
}
else
{
ret |= GL_MAP_READ_BIT;
}
return ret;
}
struct wined3d_resource * CDECL wined3d_buffer_get_resource(struct wined3d_buffer *buffer)
{
TRACE("buffer %p.\n", buffer);
return &buffer->resource;
}
HRESULT CDECL wined3d_buffer_map(struct wined3d_buffer *buffer, UINT offset, UINT size, BYTE **data, DWORD flags)
{
BOOL dirty = buffer_is_dirty(buffer);
LONG count;
TRACE("buffer %p, offset %u, size %u, data %p, flags %#x\n", buffer, offset, size, data, flags);
flags = buffer_sanitize_flags(buffer, flags);
if (!(flags & WINED3DLOCK_READONLY))
{
if (!buffer_add_dirty_area(buffer, offset, size)) return E_OUTOFMEMORY;
}
count = InterlockedIncrement(&buffer->lock_count);
if (buffer->buffer_object)
{
if (!(buffer->flags & WINED3D_BUFFER_DOUBLEBUFFER))
{
if (count == 1)
{
struct wined3d_device *device = buffer->resource.device;
struct wined3d_context *context;
const struct wined3d_gl_info *gl_info;
if (buffer->buffer_type_hint == GL_ELEMENT_ARRAY_BUFFER_ARB)
device_invalidate_state(device, STATE_INDEXBUFFER);
context = context_acquire(device, NULL);
gl_info = context->gl_info;
ENTER_GL();
GL_EXTCALL(glBindBufferARB(buffer->buffer_type_hint, buffer->buffer_object));
if (gl_info->supported[ARB_MAP_BUFFER_RANGE])
{
GLbitfield mapflags = buffer_gl_map_flags(flags);
buffer->resource.allocatedMemory = GL_EXTCALL(glMapBufferRange(buffer->buffer_type_hint,
0, buffer->resource.size, mapflags));
checkGLcall("glMapBufferRange");
}
else
{
if (buffer->flags & WINED3D_BUFFER_APPLESYNC)
{
LEAVE_GL();
buffer_sync_apple(buffer, flags, gl_info);
ENTER_GL();
}
buffer->resource.allocatedMemory = GL_EXTCALL(glMapBufferARB(buffer->buffer_type_hint,
GL_READ_WRITE_ARB));
checkGLcall("glMapBufferARB");
}
LEAVE_GL();
if (((DWORD_PTR)buffer->resource.allocatedMemory) & (RESOURCE_ALIGNMENT - 1))
{
WARN("Pointer %p is not %u byte aligned.\n", buffer->resource.allocatedMemory, RESOURCE_ALIGNMENT);
ENTER_GL();
GL_EXTCALL(glUnmapBufferARB(buffer->buffer_type_hint));
checkGLcall("glUnmapBufferARB");
LEAVE_GL();
buffer->resource.allocatedMemory = NULL;
if (buffer->resource.usage & WINED3DUSAGE_DYNAMIC)
{
/* The extra copy is more expensive than not using VBOs at
* all on the Nvidia Linux driver, which is the only driver
* that returns unaligned pointers
*/
TRACE("Dynamic buffer, dropping VBO\n");
buffer_unload(&buffer->resource);
buffer->flags &= ~WINED3D_BUFFER_CREATEBO;
}
else
{
TRACE("Falling back to doublebuffered operation\n");
buffer_get_sysmem(buffer, gl_info);
}
TRACE("New pointer is %p.\n", buffer->resource.allocatedMemory);
}
context_release(context);
}
}
else
{
if (dirty)
{
if (buffer->flags & WINED3D_BUFFER_NOSYNC && !(flags & WINED3DLOCK_NOOVERWRITE))
{
buffer->flags &= ~WINED3D_BUFFER_NOSYNC;
}
}
else if(flags & WINED3DLOCK_NOOVERWRITE)
{
buffer->flags |= WINED3D_BUFFER_NOSYNC;
}
if (flags & WINED3DLOCK_DISCARD)
{
buffer->flags |= WINED3D_BUFFER_DISCARD;
}
}
}
*data = buffer->resource.allocatedMemory + offset;
TRACE("Returning memory at %p (base %p, offset %u).\n", *data, buffer->resource.allocatedMemory, offset);
/* TODO: check Flags compatibility with buffer->currentDesc.Usage (see MSDN) */
return WINED3D_OK;
}
void CDECL wined3d_buffer_unmap(struct wined3d_buffer *buffer)
{
ULONG i;
TRACE("buffer %p.\n", buffer);
/* In the case that the number of Unmap calls > the
* number of Map calls, d3d returns always D3D_OK.
* This is also needed to prevent Map from returning garbage on
* the next call (this will happen if the lock_count is < 0). */
if (!buffer->lock_count)
{
WARN("Unmap called without a previous map call.\n");
return;
}
if (InterlockedDecrement(&buffer->lock_count))
{
/* Delay loading the buffer until everything is unlocked */
TRACE("Ignoring unmap.\n");
return;
}
if (!(buffer->flags & WINED3D_BUFFER_DOUBLEBUFFER) && buffer->buffer_object)
{
struct wined3d_device *device = buffer->resource.device;
const struct wined3d_gl_info *gl_info;
struct wined3d_context *context;
if (buffer->buffer_type_hint == GL_ELEMENT_ARRAY_BUFFER_ARB)
device_invalidate_state(device, STATE_INDEXBUFFER);
context = context_acquire(device, NULL);
gl_info = context->gl_info;
ENTER_GL();
GL_EXTCALL(glBindBufferARB(buffer->buffer_type_hint, buffer->buffer_object));
if (gl_info->supported[ARB_MAP_BUFFER_RANGE])
{
for (i = 0; i < buffer->modified_areas; ++i)
{
GL_EXTCALL(glFlushMappedBufferRange(buffer->buffer_type_hint,
buffer->maps[i].offset, buffer->maps[i].size));
checkGLcall("glFlushMappedBufferRange");
}
}
else if (buffer->flags & WINED3D_BUFFER_FLUSH)
{
for (i = 0; i < buffer->modified_areas; ++i)
{
GL_EXTCALL(glFlushMappedBufferRangeAPPLE(buffer->buffer_type_hint,
buffer->maps[i].offset, buffer->maps[i].size));
checkGLcall("glFlushMappedBufferRangeAPPLE");
}
}
GL_EXTCALL(glUnmapBufferARB(buffer->buffer_type_hint));
LEAVE_GL();
context_release(context);
buffer->resource.allocatedMemory = NULL;
buffer_clear_dirty_areas(buffer);
}
else if (buffer->flags & WINED3D_BUFFER_HASDESC)
{
wined3d_buffer_preload(buffer);
}
}
static const struct wined3d_resource_ops buffer_resource_ops =
{
buffer_unload,
};
static HRESULT buffer_init(struct wined3d_buffer *buffer, struct wined3d_device *device,
UINT size, DWORD usage, enum wined3d_format_id format_id, WINED3DPOOL pool, GLenum bind_hint,
const char *data, void *parent, const struct wined3d_parent_ops *parent_ops)
{
const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
const struct wined3d_format *format = wined3d_get_format(gl_info, format_id);
HRESULT hr;
BOOL dynamic_buffer_ok;
if (!size)
{
WARN("Size 0 requested, returning WINED3DERR_INVALIDCALL\n");
return WINED3DERR_INVALIDCALL;
}
hr = resource_init(&buffer->resource, device, WINED3DRTYPE_BUFFER, format,
WINED3DMULTISAMPLE_NONE, 0, usage, pool, size, 1, 1, size,
parent, parent_ops, &buffer_resource_ops);
if (FAILED(hr))
{
WARN("Failed to initialize resource, hr %#x\n", hr);
return hr;
}
buffer->buffer_type_hint = bind_hint;
TRACE("size %#x, usage %#x, format %s, memory @ %p, iface @ %p.\n", buffer->resource.size, buffer->resource.usage,
debug_d3dformat(buffer->resource.format->id), buffer->resource.allocatedMemory, buffer);
dynamic_buffer_ok = gl_info->supported[APPLE_FLUSH_BUFFER_RANGE] || gl_info->supported[ARB_MAP_BUFFER_RANGE];
/* Observations show that drawStridedSlow is faster on dynamic VBs than converting +
* drawStridedFast (half-life 2 and others).
*
* Basically converting the vertices in the buffer is quite expensive, and observations
* show that drawStridedSlow is faster than converting + uploading + drawStridedFast.
* Therefore do not create a VBO for WINED3DUSAGE_DYNAMIC buffers.
*/
if (!gl_info->supported[ARB_VERTEX_BUFFER_OBJECT])
{
TRACE("Not creating a vbo because GL_ARB_vertex_buffer is not supported\n");
}
else if(buffer->resource.pool == WINED3DPOOL_SYSTEMMEM)
{
TRACE("Not creating a vbo because the vertex buffer is in system memory\n");
}
else if(!dynamic_buffer_ok && (buffer->resource.usage & WINED3DUSAGE_DYNAMIC))
{
TRACE("Not creating a vbo because the buffer has dynamic usage and no GL support\n");
}
else
{
buffer->flags |= WINED3D_BUFFER_CREATEBO;
}
if (data)
{
BYTE *ptr;
hr = wined3d_buffer_map(buffer, 0, size, &ptr, 0);
if (FAILED(hr))
{
ERR("Failed to map buffer, hr %#x\n", hr);
buffer_unload(&buffer->resource);
resource_cleanup(&buffer->resource);
return hr;
}
memcpy(ptr, data, size);
wined3d_buffer_unmap(buffer);
}
buffer->maps = HeapAlloc(GetProcessHeap(), 0, sizeof(*buffer->maps));
if (!buffer->maps)
{
ERR("Out of memory\n");
buffer_unload(&buffer->resource);
resource_cleanup(&buffer->resource);
return E_OUTOFMEMORY;
}
buffer->maps_size = 1;
return WINED3D_OK;
}
HRESULT CDECL wined3d_buffer_create(struct wined3d_device *device, struct wined3d_buffer_desc *desc, const void *data,
void *parent, const struct wined3d_parent_ops *parent_ops, struct wined3d_buffer **buffer)
{
struct wined3d_buffer *object;
HRESULT hr;
TRACE("device %p, desc %p, data %p, parent %p, buffer %p\n", device, desc, data, parent, buffer);
object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
if (!object)
{
ERR("Failed to allocate memory\n");
return E_OUTOFMEMORY;
}
FIXME("Ignoring access flags (pool)\n");
hr = buffer_init(object, device, desc->byte_width, desc->usage, WINED3DFMT_UNKNOWN,
WINED3DPOOL_MANAGED, GL_ARRAY_BUFFER_ARB, data, parent, parent_ops);
if (FAILED(hr))
{
WARN("Failed to initialize buffer, hr %#x.\n", hr);
HeapFree(GetProcessHeap(), 0, object);
return hr;
}
object->desc = *desc;
TRACE("Created buffer %p.\n", object);
*buffer = object;
return WINED3D_OK;
}
HRESULT CDECL wined3d_buffer_create_vb(struct wined3d_device *device, UINT size, DWORD usage, WINED3DPOOL pool,
void *parent, const struct wined3d_parent_ops *parent_ops, struct wined3d_buffer **buffer)
{
struct wined3d_buffer *object;
HRESULT hr;
TRACE("device %p, size %u, usage %#x, pool %#x, parent %p, parent_ops %p, buffer %p.\n",
device, size, usage, pool, parent, parent_ops, buffer);
if (pool == WINED3DPOOL_SCRATCH)
{
/* The d3d9 tests shows that this is not allowed. It doesn't make much
* sense anyway, SCRATCH buffers wouldn't be usable anywhere. */
WARN("Vertex buffer in WINED3DPOOL_SCRATCH requested, returning WINED3DERR_INVALIDCALL.\n");
*buffer = NULL;
return WINED3DERR_INVALIDCALL;
}
object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
if (!object)
{
ERR("Out of memory\n");
*buffer = NULL;
return WINED3DERR_OUTOFVIDEOMEMORY;
}
hr = buffer_init(object, device, size, usage, WINED3DFMT_VERTEXDATA,
pool, GL_ARRAY_BUFFER_ARB, NULL, parent, parent_ops);
if (FAILED(hr))
{
WARN("Failed to initialize buffer, hr %#x.\n", hr);
HeapFree(GetProcessHeap(), 0, object);
return hr;
}
TRACE("Created buffer %p.\n", object);
*buffer = object;
return WINED3D_OK;
}
HRESULT CDECL wined3d_buffer_create_ib(struct wined3d_device *device, UINT size, DWORD usage, WINED3DPOOL pool,
void *parent, const struct wined3d_parent_ops *parent_ops, struct wined3d_buffer **buffer)
{
struct wined3d_buffer *object;
HRESULT hr;
TRACE("device %p, size %u, usage %#x, pool %#x, parent %p, parent_ops %p, buffer %p.\n",
device, size, usage, pool, parent, parent_ops, buffer);
object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
if (!object)
{
ERR("Out of memory\n");
*buffer = NULL;
return WINED3DERR_OUTOFVIDEOMEMORY;
}
hr = buffer_init(object, device, size, usage | WINED3DUSAGE_STATICDECL,
WINED3DFMT_UNKNOWN, pool, GL_ELEMENT_ARRAY_BUFFER_ARB, NULL,
parent, parent_ops);
if (FAILED(hr))
{
WARN("Failed to initialize buffer, hr %#x\n", hr);
HeapFree(GetProcessHeap(), 0, object);
return hr;
}
TRACE("Created buffer %p.\n", object);
*buffer = object;
return WINED3D_OK;
}
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