239 lines
6.9 KiB
C
239 lines
6.9 KiB
C
/*
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* Copyright 2009 Maciej Cencora <m.cencora@gmail.com>
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*
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "main/mtypes.h"
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#include "main/bufferobj.h"
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#include "util/u_memory.h"
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#include "radeon_common.h"
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#include "radeon_buffer_objects.h"
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struct radeon_buffer_object *
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get_radeon_buffer_object(struct gl_buffer_object *obj)
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{
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return (struct radeon_buffer_object *) obj;
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}
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static struct gl_buffer_object *
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radeonNewBufferObject(struct gl_context * ctx,
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GLuint name)
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{
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struct radeon_buffer_object *obj = CALLOC_STRUCT(radeon_buffer_object);
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_mesa_initialize_buffer_object(ctx, &obj->Base, name);
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obj->bo = NULL;
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return &obj->Base;
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}
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/**
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* Called via glDeleteBuffersARB().
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*/
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static void
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radeonDeleteBufferObject(struct gl_context * ctx,
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struct gl_buffer_object *obj)
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{
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struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
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int i;
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for (i = 0; i < MAP_COUNT; i++) {
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if (obj->Mappings[i].Pointer) {
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radeon_bo_unmap(radeon_obj->bo);
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}
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}
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if (radeon_obj->bo) {
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radeon_bo_unref(radeon_obj->bo);
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}
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_mesa_delete_buffer_object(ctx, obj);
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}
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/**
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* Allocate space for and store data in a buffer object. Any data that was
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* previously stored in the buffer object is lost. If data is NULL,
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* memory will be allocated, but no copy will occur.
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* Called via ctx->Driver.BufferData().
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* \return GL_TRUE for success, GL_FALSE if out of memory
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*/
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static GLboolean
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radeonBufferData(struct gl_context * ctx,
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GLenum target,
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GLsizeiptrARB size,
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const GLvoid * data,
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GLenum usage,
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GLbitfield storageFlags,
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struct gl_buffer_object *obj)
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{
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radeonContextPtr radeon = RADEON_CONTEXT(ctx);
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struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
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radeon_obj->Base.Size = size;
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radeon_obj->Base.Usage = usage;
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radeon_obj->Base.StorageFlags = storageFlags;
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if (radeon_obj->bo != NULL) {
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radeon_bo_unref(radeon_obj->bo);
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radeon_obj->bo = NULL;
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}
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if (size != 0) {
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radeon_obj->bo = radeon_bo_open(radeon->radeonScreen->bom,
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0,
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size,
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ctx->Const.MinMapBufferAlignment,
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RADEON_GEM_DOMAIN_GTT,
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0);
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if (!radeon_obj->bo)
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return GL_FALSE;
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if (data != NULL) {
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radeon_bo_map(radeon_obj->bo, GL_TRUE);
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memcpy(radeon_obj->bo->ptr, data, size);
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radeon_bo_unmap(radeon_obj->bo);
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}
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}
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return GL_TRUE;
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}
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/**
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* Replace data in a subrange of buffer object. If the data range
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* specified by size + offset extends beyond the end of the buffer or
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* if data is NULL, no copy is performed.
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* Called via glBufferSubDataARB().
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*/
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static void
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radeonBufferSubData(struct gl_context * ctx,
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GLintptrARB offset,
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GLsizeiptrARB size,
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const GLvoid * data,
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struct gl_buffer_object *obj)
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{
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radeonContextPtr radeon = RADEON_CONTEXT(ctx);
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struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
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if (radeon_bo_is_referenced_by_cs(radeon_obj->bo, radeon->cmdbuf.cs)) {
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radeon_firevertices(radeon);
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}
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radeon_bo_map(radeon_obj->bo, GL_TRUE);
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memcpy(radeon_obj->bo->ptr + offset, data, size);
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radeon_bo_unmap(radeon_obj->bo);
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}
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/**
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* Called via glGetBufferSubDataARB()
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*/
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static void
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radeonGetBufferSubData(struct gl_context * ctx,
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GLintptrARB offset,
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GLsizeiptrARB size,
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GLvoid * data,
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struct gl_buffer_object *obj)
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{
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struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
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radeon_bo_map(radeon_obj->bo, GL_FALSE);
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memcpy(data, radeon_obj->bo->ptr + offset, size);
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radeon_bo_unmap(radeon_obj->bo);
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}
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/**
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* Called via glMapBuffer() and glMapBufferRange()
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*/
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static void *
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radeonMapBufferRange(struct gl_context * ctx,
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GLintptr offset, GLsizeiptr length,
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GLbitfield access, struct gl_buffer_object *obj,
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gl_map_buffer_index index)
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{
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struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
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const GLboolean write_only =
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(access & (GL_MAP_READ_BIT | GL_MAP_WRITE_BIT)) == GL_MAP_WRITE_BIT;
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if (write_only) {
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ctx->Driver.Flush(ctx, 0);
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}
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if (radeon_obj->bo == NULL) {
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obj->Mappings[index].Pointer = NULL;
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return NULL;
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}
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obj->Mappings[index].Offset = offset;
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obj->Mappings[index].Length = length;
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obj->Mappings[index].AccessFlags = access;
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radeon_bo_map(radeon_obj->bo, write_only);
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obj->Mappings[index].Pointer = radeon_obj->bo->ptr + offset;
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return obj->Mappings[index].Pointer;
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}
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/**
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* Called via glUnmapBufferARB()
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*/
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static GLboolean
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radeonUnmapBuffer(struct gl_context * ctx,
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struct gl_buffer_object *obj,
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gl_map_buffer_index index)
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{
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struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
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if (radeon_obj->bo != NULL) {
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radeon_bo_unmap(radeon_obj->bo);
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}
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obj->Mappings[index].Pointer = NULL;
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obj->Mappings[index].Offset = 0;
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obj->Mappings[index].Length = 0;
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return GL_TRUE;
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}
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void
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radeonInitBufferObjectFuncs(struct dd_function_table *functions)
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{
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functions->NewBufferObject = radeonNewBufferObject;
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functions->DeleteBuffer = radeonDeleteBufferObject;
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functions->BufferData = radeonBufferData;
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functions->BufferSubData = radeonBufferSubData;
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functions->GetBufferSubData = radeonGetBufferSubData;
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functions->MapBufferRange = radeonMapBufferRange;
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functions->UnmapBuffer = radeonUnmapBuffer;
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}
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