805 lines
25 KiB
C
805 lines
25 KiB
C
/**************************************************************************
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*
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* Copyright 2003 VMware, Inc.
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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 a
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* 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, sub license, 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 portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* 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/macros.h"
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#include "main/bufferobj.h"
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#include "util/u_memory.h"
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#include "intel_blit.h"
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#include "intel_buffer_objects.h"
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#include "intel_batchbuffer.h"
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#include "intel_context.h"
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#include "intel_fbo.h"
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#include "intel_mipmap_tree.h"
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#include "intel_regions.h"
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static GLboolean
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intel_bufferobj_unmap(struct gl_context * ctx, struct gl_buffer_object *obj,
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gl_map_buffer_index index);
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/** Allocates a new drm_intel_bo to store the data for the buffer object. */
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static void
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intel_bufferobj_alloc_buffer(struct intel_context *intel,
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struct intel_buffer_object *intel_obj)
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{
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intel_obj->buffer = drm_intel_bo_alloc(intel->bufmgr, "bufferobj",
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intel_obj->Base.Size, 64);
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}
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static void
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release_buffer(struct intel_buffer_object *intel_obj)
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{
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drm_intel_bo_unreference(intel_obj->buffer);
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intel_obj->buffer = NULL;
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intel_obj->offset = 0;
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intel_obj->source = 0;
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}
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/**
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* There is some duplication between mesa's bufferobjects and our
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* bufmgr buffers. Both have an integer handle and a hashtable to
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* lookup an opaque structure. It would be nice if the handles and
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* internal structure where somehow shared.
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*/
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static struct gl_buffer_object *
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intel_bufferobj_alloc(struct gl_context * ctx, GLuint name)
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{
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struct intel_buffer_object *obj = CALLOC_STRUCT(intel_buffer_object);
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_mesa_initialize_buffer_object(ctx, &obj->Base, name);
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obj->buffer = NULL;
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return &obj->Base;
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}
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/**
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* Deallocate/free a vertex/pixel buffer object.
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* Called via glDeleteBuffersARB().
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*/
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static void
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intel_bufferobj_free(struct gl_context * ctx, struct gl_buffer_object *obj)
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{
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struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
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assert(intel_obj);
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/* Buffer objects are automatically unmapped when deleting according
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* to the spec, but Mesa doesn't do UnmapBuffer for us at context destroy
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* (though it does if you call glDeleteBuffers)
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*/
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_mesa_buffer_unmap_all_mappings(ctx, obj);
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align_free(intel_obj->sys_buffer);
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drm_intel_bo_unreference(intel_obj->buffer);
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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 true for success, false if out of memory
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*/
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static GLboolean
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intel_bufferobj_data(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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struct intel_context *intel = intel_context(ctx);
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struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
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intel_obj->Base.Size = size;
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intel_obj->Base.Usage = usage;
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intel_obj->Base.StorageFlags = storageFlags;
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assert(!obj->Mappings[MAP_USER].Pointer); /* Mesa should have unmapped it */
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assert(!obj->Mappings[MAP_INTERNAL].Pointer);
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if (intel_obj->buffer != NULL)
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release_buffer(intel_obj);
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align_free(intel_obj->sys_buffer);
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intel_obj->sys_buffer = NULL;
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if (size != 0) {
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/* Stick VBOs in system memory, as we're always doing swtnl with their
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* contents anyway.
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*/
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if (target == GL_ARRAY_BUFFER || target == GL_ELEMENT_ARRAY_BUFFER) {
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intel_obj->sys_buffer =
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align_malloc(size, ctx->Const.MinMapBufferAlignment);
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if (intel_obj->sys_buffer != NULL) {
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if (data != NULL)
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memcpy(intel_obj->sys_buffer, data, size);
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return true;
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}
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}
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intel_bufferobj_alloc_buffer(intel, intel_obj);
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if (!intel_obj->buffer)
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return false;
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if (data != NULL)
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drm_intel_bo_subdata(intel_obj->buffer, 0, size, data);
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}
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return 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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intel_bufferobj_subdata(struct gl_context * ctx,
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GLintptrARB offset,
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GLsizeiptrARB size,
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const GLvoid * data, struct gl_buffer_object *obj)
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{
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struct intel_context *intel = intel_context(ctx);
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struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
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bool busy;
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if (size == 0)
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return;
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assert(intel_obj);
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/* If we have a single copy in system memory, update that */
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if (intel_obj->sys_buffer) {
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if (intel_obj->source)
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release_buffer(intel_obj);
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if (intel_obj->buffer == NULL) {
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memcpy((char *)intel_obj->sys_buffer + offset, data, size);
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return;
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}
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align_free(intel_obj->sys_buffer);
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intel_obj->sys_buffer = NULL;
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}
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/* Otherwise we need to update the copy in video memory. */
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busy =
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drm_intel_bo_busy(intel_obj->buffer) ||
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drm_intel_bo_references(intel->batch.bo, intel_obj->buffer);
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if (busy) {
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if (size == intel_obj->Base.Size) {
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/* Replace the current busy bo with fresh data. */
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drm_intel_bo_unreference(intel_obj->buffer);
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intel_bufferobj_alloc_buffer(intel, intel_obj);
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drm_intel_bo_subdata(intel_obj->buffer, 0, size, data);
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} else {
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perf_debug("Using a blit copy to avoid stalling on %ldb "
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"glBufferSubData() to a busy buffer object.\n",
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(long)size);
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drm_intel_bo *temp_bo =
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drm_intel_bo_alloc(intel->bufmgr, "subdata temp", size, 64);
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drm_intel_bo_subdata(temp_bo, 0, size, data);
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intel_emit_linear_blit(intel,
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intel_obj->buffer, offset,
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temp_bo, 0,
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size);
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drm_intel_bo_unreference(temp_bo);
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}
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} else {
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drm_intel_bo_subdata(intel_obj->buffer, offset, size, data);
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}
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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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intel_bufferobj_get_subdata(struct gl_context * ctx,
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GLintptrARB offset,
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GLsizeiptrARB size,
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GLvoid * data, struct gl_buffer_object *obj)
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{
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struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
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struct intel_context *intel = intel_context(ctx);
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assert(intel_obj);
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if (intel_obj->sys_buffer)
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memcpy(data, (char *)intel_obj->sys_buffer + offset, size);
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else {
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if (drm_intel_bo_references(intel->batch.bo, intel_obj->buffer)) {
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intel_batchbuffer_flush(intel);
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}
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drm_intel_bo_get_subdata(intel_obj->buffer, offset, size, data);
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}
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}
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/**
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* Called via glMapBufferRange and glMapBuffer
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*
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* The goal of this extension is to allow apps to accumulate their rendering
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* at the same time as they accumulate their buffer object. Without it,
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* you'd end up blocking on execution of rendering every time you mapped
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* the buffer to put new data in.
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*
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* We support it in 3 ways: If unsynchronized, then don't bother
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* flushing the batchbuffer before mapping the buffer, which can save blocking
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* in many cases. If we would still block, and they allow the whole buffer
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* to be invalidated, then just allocate a new buffer to replace the old one.
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* If not, and we'd block, and they allow the subrange of the buffer to be
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* invalidated, then we can make a new little BO, let them write into that,
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* and blit it into the real BO at unmap time.
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*/
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static void *
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intel_bufferobj_map_range(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 intel_context *intel = intel_context(ctx);
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struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
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assert(intel_obj);
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/* _mesa_MapBufferRange (GL entrypoint) sets these, but the vbo module also
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* internally uses our functions directly.
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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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if (intel_obj->sys_buffer) {
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const bool read_only =
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(access & (GL_MAP_READ_BIT | GL_MAP_WRITE_BIT)) == GL_MAP_READ_BIT;
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if (!read_only && intel_obj->source)
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release_buffer(intel_obj);
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if (!intel_obj->buffer || intel_obj->source) {
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obj->Mappings[index].Pointer = intel_obj->sys_buffer + offset;
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return obj->Mappings[index].Pointer;
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}
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align_free(intel_obj->sys_buffer);
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intel_obj->sys_buffer = NULL;
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}
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if (intel_obj->buffer == NULL) {
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obj->Mappings[index].Pointer = NULL;
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return NULL;
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}
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/* If the access is synchronized (like a normal buffer mapping), then get
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* things flushed out so the later mapping syncs appropriately through GEM.
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* If the user doesn't care about existing buffer contents and mapping would
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* cause us to block, then throw out the old buffer.
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*
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* If they set INVALIDATE_BUFFER, we can pitch the current contents to
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* achieve the required synchronization.
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*/
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if (!(access & GL_MAP_UNSYNCHRONIZED_BIT)) {
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if (drm_intel_bo_references(intel->batch.bo, intel_obj->buffer)) {
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if (access & GL_MAP_INVALIDATE_BUFFER_BIT) {
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drm_intel_bo_unreference(intel_obj->buffer);
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intel_bufferobj_alloc_buffer(intel, intel_obj);
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} else {
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perf_debug("Stalling on the GPU for mapping a busy buffer "
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"object\n");
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intel_flush(ctx);
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}
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} else if (drm_intel_bo_busy(intel_obj->buffer) &&
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(access & GL_MAP_INVALIDATE_BUFFER_BIT)) {
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drm_intel_bo_unreference(intel_obj->buffer);
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intel_bufferobj_alloc_buffer(intel, intel_obj);
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}
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}
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/* If the user is mapping a range of an active buffer object but
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* doesn't require the current contents of that range, make a new
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* BO, and we'll copy what they put in there out at unmap or
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* FlushRange time.
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*/
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if ((access & GL_MAP_INVALIDATE_RANGE_BIT) &&
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drm_intel_bo_busy(intel_obj->buffer)) {
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/* Ensure that the base alignment of the allocation meets the alignment
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* guarantees the driver has advertised to the application.
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*/
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const unsigned alignment = ctx->Const.MinMapBufferAlignment;
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const unsigned extra = (uintptr_t) offset % alignment;
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if (access & GL_MAP_FLUSH_EXPLICIT_BIT) {
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intel_obj->range_map_buffer[index] =
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align_malloc(length + extra, alignment);
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obj->Mappings[index].Pointer =
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intel_obj->range_map_buffer[index] + extra;
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} else {
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intel_obj->range_map_bo[index] = drm_intel_bo_alloc(intel->bufmgr,
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"range map",
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length + extra,
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alignment);
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if (!(access & GL_MAP_READ_BIT)) {
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drm_intel_gem_bo_map_gtt(intel_obj->range_map_bo[index]);
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} else {
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drm_intel_bo_map(intel_obj->range_map_bo[index],
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(access & GL_MAP_WRITE_BIT) != 0);
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}
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obj->Mappings[index].Pointer =
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intel_obj->range_map_bo[index]->virtual + extra;
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}
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return obj->Mappings[index].Pointer;
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}
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if (access & GL_MAP_UNSYNCHRONIZED_BIT)
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drm_intel_gem_bo_map_unsynchronized(intel_obj->buffer);
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else if (!(access & GL_MAP_READ_BIT)) {
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drm_intel_gem_bo_map_gtt(intel_obj->buffer);
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} else {
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drm_intel_bo_map(intel_obj->buffer, (access & GL_MAP_WRITE_BIT) != 0);
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}
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obj->Mappings[index].Pointer = intel_obj->buffer->virtual + offset;
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return obj->Mappings[index].Pointer;
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}
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/* Ideally we'd use a BO to avoid taking up cache space for the temporary
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* data, but FlushMappedBufferRange may be followed by further writes to
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* the pointer, so we would have to re-map after emitting our blit, which
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* would defeat the point.
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*/
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static void
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intel_bufferobj_flush_mapped_range(struct gl_context *ctx,
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GLintptr offset, GLsizeiptr length,
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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 intel_context *intel = intel_context(ctx);
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struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
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drm_intel_bo *temp_bo;
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/* Unless we're in the range map using a temporary system buffer,
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* there's no work to do.
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*/
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if (intel_obj->range_map_buffer[index] == NULL)
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return;
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if (length == 0)
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return;
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temp_bo = drm_intel_bo_alloc(intel->bufmgr, "range map flush", length, 64);
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/* Use obj->Pointer instead of intel_obj->range_map_buffer because the
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* former points to the actual mapping while the latter may be offset to
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* meet alignment guarantees.
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*/
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drm_intel_bo_subdata(temp_bo, 0, length, obj->Mappings[index].Pointer);
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intel_emit_linear_blit(intel,
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intel_obj->buffer,
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obj->Mappings[index].Offset + offset,
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temp_bo, 0,
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length);
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drm_intel_bo_unreference(temp_bo);
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}
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/**
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* Called via glUnmapBuffer().
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*/
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static GLboolean
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intel_bufferobj_unmap(struct gl_context * ctx, struct gl_buffer_object *obj,
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gl_map_buffer_index index)
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{
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struct intel_context *intel = intel_context(ctx);
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struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
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assert(intel_obj);
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assert(obj->Mappings[index].Pointer);
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if (intel_obj->sys_buffer != NULL) {
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/* always keep the mapping around. */
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} else if (intel_obj->range_map_buffer[index] != NULL) {
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/* Since we've emitted some blits to buffers that will (likely) be used
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* in rendering operations in other cache domains in this batch, emit a
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* flush. Once again, we wish for a domain tracker in libdrm to cover
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* usage inside of a batchbuffer.
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*/
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intel_batchbuffer_emit_mi_flush(intel);
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align_free(intel_obj->range_map_buffer[index]);
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intel_obj->range_map_buffer[index] = NULL;
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} else if (intel_obj->range_map_bo[index] != NULL) {
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const unsigned extra = obj->Mappings[index].Pointer -
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intel_obj->range_map_bo[index]->virtual;
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drm_intel_bo_unmap(intel_obj->range_map_bo[index]);
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intel_emit_linear_blit(intel,
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intel_obj->buffer, obj->Mappings[index].Offset,
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intel_obj->range_map_bo[index], extra,
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obj->Mappings[index].Length);
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/* Since we've emitted some blits to buffers that will (likely) be used
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* in rendering operations in other cache domains in this batch, emit a
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* flush. Once again, we wish for a domain tracker in libdrm to cover
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* usage inside of a batchbuffer.
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*/
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intel_batchbuffer_emit_mi_flush(intel);
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drm_intel_bo_unreference(intel_obj->range_map_bo[index]);
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intel_obj->range_map_bo[index] = NULL;
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} else if (intel_obj->buffer != NULL) {
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drm_intel_bo_unmap(intel_obj->buffer);
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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 true;
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}
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drm_intel_bo *
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intel_bufferobj_buffer(struct intel_context *intel,
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struct intel_buffer_object *intel_obj)
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{
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if (intel_obj->source)
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release_buffer(intel_obj);
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if (intel_obj->buffer == NULL) {
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intel_bufferobj_alloc_buffer(intel, intel_obj);
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drm_intel_bo_subdata(intel_obj->buffer,
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0, intel_obj->Base.Size,
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intel_obj->sys_buffer);
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align_free(intel_obj->sys_buffer);
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intel_obj->sys_buffer = NULL;
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intel_obj->offset = 0;
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}
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return intel_obj->buffer;
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}
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#define INTEL_UPLOAD_SIZE (64*1024)
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void
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intel_upload_finish(struct intel_context *intel)
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{
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if (!intel->upload.bo)
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return;
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if (intel->upload.buffer_len) {
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drm_intel_bo_subdata(intel->upload.bo,
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intel->upload.buffer_offset,
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intel->upload.buffer_len,
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intel->upload.buffer);
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intel->upload.buffer_len = 0;
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}
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drm_intel_bo_unreference(intel->upload.bo);
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intel->upload.bo = NULL;
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}
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static void wrap_buffers(struct intel_context *intel, GLuint size)
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{
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intel_upload_finish(intel);
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if (size < INTEL_UPLOAD_SIZE)
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size = INTEL_UPLOAD_SIZE;
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intel->upload.bo = drm_intel_bo_alloc(intel->bufmgr, "upload", size, 0);
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intel->upload.offset = 0;
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}
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void intel_upload_data(struct intel_context *intel,
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const void *ptr, GLuint size, GLuint align,
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drm_intel_bo **return_bo,
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GLuint *return_offset)
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{
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GLuint base, delta;
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base = (intel->upload.offset + align - 1) / align * align;
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if (intel->upload.bo == NULL || base + size > intel->upload.bo->size) {
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wrap_buffers(intel, size);
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base = 0;
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}
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drm_intel_bo_reference(intel->upload.bo);
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*return_bo = intel->upload.bo;
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*return_offset = base;
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delta = base - intel->upload.offset;
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if (intel->upload.buffer_len &&
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intel->upload.buffer_len + delta + size > sizeof(intel->upload.buffer))
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{
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drm_intel_bo_subdata(intel->upload.bo,
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intel->upload.buffer_offset,
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intel->upload.buffer_len,
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intel->upload.buffer);
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intel->upload.buffer_len = 0;
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}
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if (size < sizeof(intel->upload.buffer))
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{
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if (intel->upload.buffer_len == 0)
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intel->upload.buffer_offset = base;
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else
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intel->upload.buffer_len += delta;
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memcpy(intel->upload.buffer + intel->upload.buffer_len, ptr, size);
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intel->upload.buffer_len += size;
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}
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else
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{
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drm_intel_bo_subdata(intel->upload.bo, base, size, ptr);
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}
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intel->upload.offset = base + size;
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}
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drm_intel_bo *
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intel_bufferobj_source(struct intel_context *intel,
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struct intel_buffer_object *intel_obj,
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GLuint align, GLuint *offset)
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{
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if (intel_obj->buffer == NULL) {
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intel_upload_data(intel,
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intel_obj->sys_buffer, intel_obj->Base.Size, align,
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&intel_obj->buffer, &intel_obj->offset);
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intel_obj->source = 1;
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}
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*offset = intel_obj->offset;
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return intel_obj->buffer;
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}
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static void
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intel_bufferobj_copy_subdata(struct gl_context *ctx,
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struct gl_buffer_object *src,
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struct gl_buffer_object *dst,
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GLintptr read_offset, GLintptr write_offset,
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GLsizeiptr size)
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{
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struct intel_context *intel = intel_context(ctx);
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struct intel_buffer_object *intel_src = intel_buffer_object(src);
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struct intel_buffer_object *intel_dst = intel_buffer_object(dst);
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drm_intel_bo *src_bo, *dst_bo;
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GLuint src_offset;
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if (size == 0)
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return;
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/* If we're in system memory, just map and memcpy. */
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if (intel_src->sys_buffer || intel_dst->sys_buffer) {
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/* The same buffer may be used, but note that regions copied may
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* not overlap.
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*/
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if (src == dst) {
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char *ptr = intel_bufferobj_map_range(ctx, 0, dst->Size,
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GL_MAP_READ_BIT |
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GL_MAP_WRITE_BIT,
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dst, MAP_INTERNAL);
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memmove(ptr + write_offset, ptr + read_offset, size);
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intel_bufferobj_unmap(ctx, dst, MAP_INTERNAL);
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} else {
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const char *src_ptr;
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char *dst_ptr;
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src_ptr = intel_bufferobj_map_range(ctx, 0, src->Size,
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GL_MAP_READ_BIT, src,
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MAP_INTERNAL);
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dst_ptr = intel_bufferobj_map_range(ctx, 0, dst->Size,
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GL_MAP_WRITE_BIT, dst,
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MAP_INTERNAL);
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memcpy(dst_ptr + write_offset, src_ptr + read_offset, size);
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intel_bufferobj_unmap(ctx, src, MAP_INTERNAL);
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intel_bufferobj_unmap(ctx, dst, MAP_INTERNAL);
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}
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return;
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}
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/* Otherwise, we have real BOs, so blit them. */
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dst_bo = intel_bufferobj_buffer(intel, intel_dst);
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src_bo = intel_bufferobj_source(intel, intel_src, 64, &src_offset);
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intel_emit_linear_blit(intel,
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dst_bo, write_offset,
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src_bo, read_offset + src_offset, size);
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/* Since we've emitted some blits to buffers that will (likely) be used
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* in rendering operations in other cache domains in this batch, emit a
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* flush. Once again, we wish for a domain tracker in libdrm to cover
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* usage inside of a batchbuffer.
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*/
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intel_batchbuffer_emit_mi_flush(intel);
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}
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static GLenum
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intel_buffer_purgeable(drm_intel_bo *buffer)
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{
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int retained = 0;
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if (buffer != NULL)
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retained = drm_intel_bo_madvise (buffer, I915_MADV_DONTNEED);
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return retained ? GL_VOLATILE_APPLE : GL_RELEASED_APPLE;
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}
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static GLenum
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intel_buffer_object_purgeable(struct gl_context * ctx,
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struct gl_buffer_object *obj,
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GLenum option)
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{
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struct intel_buffer_object *intel_obj = intel_buffer_object (obj);
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if (intel_obj->buffer != NULL)
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return intel_buffer_purgeable(intel_obj->buffer);
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if (option == GL_RELEASED_APPLE) {
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align_free(intel_obj->sys_buffer);
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intel_obj->sys_buffer = NULL;
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return GL_RELEASED_APPLE;
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} else {
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/* XXX Create the buffer and madvise(MADV_DONTNEED)? */
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struct intel_context *intel = intel_context(ctx);
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drm_intel_bo *bo = intel_bufferobj_buffer(intel, intel_obj);
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return intel_buffer_purgeable(bo);
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}
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}
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static GLenum
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intel_texture_object_purgeable(struct gl_context * ctx,
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struct gl_texture_object *obj,
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GLenum option)
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{
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struct intel_texture_object *intel;
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(void) ctx;
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(void) option;
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intel = intel_texture_object(obj);
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if (intel->mt == NULL || intel->mt->region == NULL)
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return GL_RELEASED_APPLE;
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return intel_buffer_purgeable(intel->mt->region->bo);
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}
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static GLenum
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intel_render_object_purgeable(struct gl_context * ctx,
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struct gl_renderbuffer *obj,
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GLenum option)
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{
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struct intel_renderbuffer *intel;
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(void) ctx;
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(void) option;
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intel = intel_renderbuffer(obj);
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if (intel->mt == NULL)
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return GL_RELEASED_APPLE;
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return intel_buffer_purgeable(intel->mt->region->bo);
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}
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static GLenum
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intel_buffer_unpurgeable(drm_intel_bo *buffer)
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{
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int retained;
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retained = 0;
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if (buffer != NULL)
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retained = drm_intel_bo_madvise (buffer, I915_MADV_WILLNEED);
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return retained ? GL_RETAINED_APPLE : GL_UNDEFINED_APPLE;
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}
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static GLenum
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intel_buffer_object_unpurgeable(struct gl_context * ctx,
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struct gl_buffer_object *obj,
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GLenum option)
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{
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(void) ctx;
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(void) option;
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return intel_buffer_unpurgeable(intel_buffer_object (obj)->buffer);
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}
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static GLenum
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intel_texture_object_unpurgeable(struct gl_context * ctx,
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struct gl_texture_object *obj,
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GLenum option)
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{
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struct intel_texture_object *intel;
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(void) ctx;
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(void) option;
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intel = intel_texture_object(obj);
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if (intel->mt == NULL || intel->mt->region == NULL)
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return GL_UNDEFINED_APPLE;
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return intel_buffer_unpurgeable(intel->mt->region->bo);
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}
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static GLenum
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intel_render_object_unpurgeable(struct gl_context * ctx,
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struct gl_renderbuffer *obj,
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GLenum option)
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{
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struct intel_renderbuffer *intel;
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(void) ctx;
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(void) option;
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intel = intel_renderbuffer(obj);
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if (intel->mt == NULL)
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return GL_UNDEFINED_APPLE;
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return intel_buffer_unpurgeable(intel->mt->region->bo);
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}
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void
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intelInitBufferObjectFuncs(struct dd_function_table *functions)
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{
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functions->NewBufferObject = intel_bufferobj_alloc;
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functions->DeleteBuffer = intel_bufferobj_free;
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functions->BufferData = intel_bufferobj_data;
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functions->BufferSubData = intel_bufferobj_subdata;
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functions->GetBufferSubData = intel_bufferobj_get_subdata;
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functions->MapBufferRange = intel_bufferobj_map_range;
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functions->FlushMappedBufferRange = intel_bufferobj_flush_mapped_range;
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functions->UnmapBuffer = intel_bufferobj_unmap;
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functions->CopyBufferSubData = intel_bufferobj_copy_subdata;
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functions->BufferObjectPurgeable = intel_buffer_object_purgeable;
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functions->TextureObjectPurgeable = intel_texture_object_purgeable;
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functions->RenderObjectPurgeable = intel_render_object_purgeable;
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functions->BufferObjectUnpurgeable = intel_buffer_object_unpurgeable;
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functions->TextureObjectUnpurgeable = intel_texture_object_unpurgeable;
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functions->RenderObjectUnpurgeable = intel_render_object_unpurgeable;
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}
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