2 * Copyright 2009 Maciej Cencora <m.cencora@gmail.com>
6 * Permission is hereby granted, free of charge, to any person obtaining
7 * a copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sublicense, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial
16 * portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 #include "radeon_buffer_objects.h"
30 #include "main/imports.h"
31 #include "main/mtypes.h"
32 #include "main/bufferobj.h"
34 #include "radeon_common.h"
36 struct radeon_buffer_object *
37 get_radeon_buffer_object(struct gl_buffer_object *obj)
39 return (struct radeon_buffer_object *) obj;
42 static struct gl_buffer_object *
43 radeonNewBufferObject(struct gl_context * ctx,
47 struct radeon_buffer_object *obj = CALLOC_STRUCT(radeon_buffer_object);
49 _mesa_initialize_buffer_object(&obj->Base, name, target);
57 * Called via glDeleteBuffersARB().
60 radeonDeleteBufferObject(struct gl_context * ctx,
61 struct gl_buffer_object *obj)
63 struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
66 radeon_bo_unmap(radeon_obj->bo);
70 radeon_bo_unref(radeon_obj->bo);
78 * Allocate space for and store data in a buffer object. Any data that was
79 * previously stored in the buffer object is lost. If data is NULL,
80 * memory will be allocated, but no copy will occur.
81 * Called via ctx->Driver.BufferData().
82 * \return GL_TRUE for success, GL_FALSE if out of memory
85 radeonBufferData(struct gl_context * ctx,
90 struct gl_buffer_object *obj)
92 radeonContextPtr radeon = RADEON_CONTEXT(ctx);
93 struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
95 radeon_obj->Base.Size = size;
96 radeon_obj->Base.Usage = usage;
98 if (radeon_obj->bo != NULL) {
99 radeon_bo_unref(radeon_obj->bo);
100 radeon_obj->bo = NULL;
104 radeon_obj->bo = radeon_bo_open(radeon->radeonScreen->bom,
108 RADEON_GEM_DOMAIN_GTT,
115 radeon_bo_map(radeon_obj->bo, GL_TRUE);
117 memcpy(radeon_obj->bo->ptr, data, size);
119 radeon_bo_unmap(radeon_obj->bo);
126 * Replace data in a subrange of buffer object. If the data range
127 * specified by size + offset extends beyond the end of the buffer or
128 * if data is NULL, no copy is performed.
129 * Called via glBufferSubDataARB().
132 radeonBufferSubData(struct gl_context * ctx,
137 struct gl_buffer_object *obj)
139 radeonContextPtr radeon = RADEON_CONTEXT(ctx);
140 struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
142 if (radeon_bo_is_referenced_by_cs(radeon_obj->bo, radeon->cmdbuf.cs)) {
143 radeon_firevertices(radeon);
146 radeon_bo_map(radeon_obj->bo, GL_TRUE);
148 memcpy(radeon_obj->bo->ptr + offset, data, size);
150 radeon_bo_unmap(radeon_obj->bo);
154 * Called via glGetBufferSubDataARB()
157 radeonGetBufferSubData(struct gl_context * ctx,
162 struct gl_buffer_object *obj)
164 struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
166 radeon_bo_map(radeon_obj->bo, GL_FALSE);
168 memcpy(data, radeon_obj->bo->ptr + offset, size);
170 radeon_bo_unmap(radeon_obj->bo);
174 * Called via glMapBufferARB()
177 radeonMapBuffer(struct gl_context * ctx,
180 struct gl_buffer_object *obj)
182 struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
184 if (access == GL_WRITE_ONLY_ARB) {
185 ctx->Driver.Flush(ctx);
188 if (radeon_obj->bo == NULL) {
193 radeon_bo_map(radeon_obj->bo, access == GL_WRITE_ONLY_ARB);
195 obj->Pointer = radeon_obj->bo->ptr;
196 obj->Length = obj->Size;
204 * Called via glUnmapBufferARB()
207 radeonUnmapBuffer(struct gl_context * ctx,
209 struct gl_buffer_object *obj)
211 struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
213 if (radeon_obj->bo != NULL) {
214 radeon_bo_unmap(radeon_obj->bo);
225 radeonInitBufferObjectFuncs(struct dd_function_table *functions)
227 functions->NewBufferObject = radeonNewBufferObject;
228 functions->DeleteBuffer = radeonDeleteBufferObject;
229 functions->BufferData = radeonBufferData;
230 functions->BufferSubData = radeonBufferSubData;
231 functions->GetBufferSubData = radeonGetBufferSubData;
232 functions->MapBuffer = radeonMapBuffer;
233 functions->UnmapBuffer = radeonUnmapBuffer;