+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-
-#include "imports.h"
-#include "mtypes.h"
-#include "bufferobj.h"
-
-#include "intel_context.h"
-#include "intel_buffer_objects.h"
-#include "dri_bufmgr.h"
-
-/** Allocates a new dri_bo to store the data for the buffer object. */
-static void
-intel_bufferobj_alloc_buffer(struct intel_context *intel,
- struct intel_buffer_object *intel_obj)
-{
- intel_obj->buffer = dri_bo_alloc(intel->bufmgr, "bufferobj",
- intel_obj->Base.Size, 64,
- DRM_BO_FLAG_MEM_TT);
-}
-
-/**
- * There is some duplication between mesa's bufferobjects and our
- * bufmgr buffers. Both have an integer handle and a hashtable to
- * lookup an opaque structure. It would be nice if the handles and
- * internal structure where somehow shared.
- */
-static struct gl_buffer_object *intel_bufferobj_alloc( GLcontext *ctx,
- GLuint name,
- GLenum target )
-{
- struct intel_buffer_object *obj = CALLOC_STRUCT(intel_buffer_object);
-
- _mesa_initialize_buffer_object(&obj->Base, name, target);
-
- return &obj->Base;
-}
-
-
-/**
- * Deallocate/free a vertex/pixel buffer object.
- * Called via glDeleteBuffersARB().
- */
-static void intel_bufferobj_free( GLcontext *ctx,
- struct gl_buffer_object *obj )
-{
- struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
-
- assert(intel_obj);
-
- if (intel_obj->buffer)
- dri_bo_unreference(intel_obj->buffer);
-
- _mesa_free(intel_obj);
-}
-
-
-
-/**
- * Allocate space for and store data in a buffer object. Any data that was
- * previously stored in the buffer object is lost. If data is NULL,
- * memory will be allocated, but no copy will occur.
- * Called via glBufferDataARB().
- */
-static void intel_bufferobj_data( GLcontext *ctx,
- GLenum target,
- GLsizeiptrARB size,
- const GLvoid *data,
- GLenum usage,
- struct gl_buffer_object *obj )
-{
- struct intel_context *intel = intel_context(ctx);
- struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
-
- /* XXX: do something useful with 'usage' (eg. populate flags
- * argument below)
- */
- assert(intel_obj);
-
- obj->Size = size;
- obj->Usage = usage;
-
- /* While it would seem to make sense to always reallocate the buffer here,
- * since it should allow us better concurrency between rendering and
- * map-cpu write-unmap, doing so was a minor (~10%) performance loss
- * for both classic and TTM mode with openarena. That may change with
- * improved buffer manager algorithms.
- */
- if (intel_obj->buffer != NULL && intel_obj->buffer->size != size) {
- dri_bo_unreference(intel_obj->buffer);
- intel_obj->buffer = NULL;
- }
- if (size != 0) {
- if (intel_obj->buffer == NULL)
- intel_bufferobj_alloc_buffer(intel, intel_obj);
-
- if (data != NULL)
- dri_bo_subdata(intel_obj->buffer, 0, size, data);
- }
-}
-
-
-/**
- * Replace data in a subrange of buffer object. If the data range
- * specified by size + offset extends beyond the end of the buffer or
- * if data is NULL, no copy is performed.
- * Called via glBufferSubDataARB().
- */
-static void intel_bufferobj_subdata( GLcontext *ctx,
- GLenum target,
- GLintptrARB offset,
- GLsizeiptrARB size,
- const GLvoid * data,
- struct gl_buffer_object * obj )
-{
- struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
-
- assert(intel_obj);
- dri_bo_subdata(intel_obj->buffer, offset, size, data);
-}
-
-
-/**
- * Called via glGetBufferSubDataARB().
- */
-static void intel_bufferobj_get_subdata( GLcontext *ctx,
- GLenum target,
- GLintptrARB offset,
- GLsizeiptrARB size,
- GLvoid * data,
- struct gl_buffer_object * obj )
-{
- struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
-
- assert(intel_obj);
- dri_bo_get_subdata(intel_obj->buffer, offset, size, data);
-}
-
-
-
-/**
- * Called via glMapBufferARB().
- */
-static void *intel_bufferobj_map( GLcontext *ctx,
- GLenum target,
- GLenum access,
- struct gl_buffer_object *obj )
-{
- struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
-
- /* XXX: Translate access to flags arg below:
- */
- assert(intel_obj);
- assert(intel_obj->buffer);
-
- dri_bo_map(intel_obj->buffer, GL_TRUE);
- obj->Pointer = intel_obj->buffer->virtual;
- return obj->Pointer;
-}
-
-
-/**
- * Called via glMapBufferARB().
- */
-static GLboolean intel_bufferobj_unmap( GLcontext *ctx,
- GLenum target,
- struct gl_buffer_object *obj )
-{
- struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
-
- assert(intel_obj);
- assert(intel_obj->buffer);
- assert(obj->Pointer);
- dri_bo_unmap(intel_obj->buffer);
- obj->Pointer = NULL;
- return GL_TRUE;
-}
-
-dri_bo *intel_bufferobj_buffer( const struct intel_buffer_object *intel_obj )
-{
- assert(intel_obj->Base.Name);
- assert(intel_obj->buffer);
- return intel_obj->buffer;
-}
-
-void intel_bufferobj_init( struct intel_context *intel )
-{
- GLcontext *ctx = &intel->ctx;
-
- ctx->Driver.NewBufferObject = intel_bufferobj_alloc;
- ctx->Driver.DeleteBuffer = intel_bufferobj_free;
- ctx->Driver.BufferData = intel_bufferobj_data;
- ctx->Driver.BufferSubData = intel_bufferobj_subdata;
- ctx->Driver.GetBufferSubData = intel_bufferobj_get_subdata;
- ctx->Driver.MapBuffer = intel_bufferobj_map;
- ctx->Driver.UnmapBuffer = intel_bufferobj_unmap;
-}
+++ /dev/null
- /**************************************************************************
- *
- * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#ifndef INTEL_BUFFEROBJ_H
-#define INTEL_BUFFEROBJ_H
-
-#include "mtypes.h"
-
-struct intel_context;
-struct gl_buffer_object;
-
-
-/**
- * Intel vertex/pixel buffer object, derived from Mesa's gl_buffer_object.
- */
-struct intel_buffer_object {
- struct gl_buffer_object Base;
- dri_bo *buffer; /* the low-level buffer manager's buffer handle */
-
- struct intel_region *region; /* Is there a zero-copy texture
- associated with this (pixel)
- buffer object? */
-};
-
-
-/* Get the bm buffer associated with a GL bufferobject:
- */
-dri_bo *intel_bufferobj_buffer( const struct intel_buffer_object *obj );
-
-/* Hook the bufferobject implementation into mesa:
- */
-void intel_bufferobj_init( struct intel_context *intel );
-
-
-
-/* Are the obj->Name tests necessary? Unfortunately yes, mesa
- * allocates a couple of gl_buffer_object structs statically, and
- * the Name == 0 test is the only way to identify them and avoid
- * casting them erroneously to our structs.
- */
-static inline struct intel_buffer_object *
-intel_buffer_object( struct gl_buffer_object *obj )
-{
- if (obj->Name)
- return (struct intel_buffer_object *)obj;
- else
- return NULL;
-}
-
-#endif
projects / mesa.git / commitdiff