diff options
Diffstat (limited to 'src/mesa/drivers/dri/radeon/radeon_buffer_objects.c')
| -rw-r--r-- | src/mesa/drivers/dri/radeon/radeon_buffer_objects.c | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/radeon/radeon_buffer_objects.c b/src/mesa/drivers/dri/radeon/radeon_buffer_objects.c new file mode 100644 index 0000000000..a24b6dac26 --- /dev/null +++ b/src/mesa/drivers/dri/radeon/radeon_buffer_objects.c @@ -0,0 +1,222 @@ +/* + * Copyright 2009 Maciej Cencora <m.cencora@gmail.com> + * + * 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, sublicense, 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 NONINFRINGEMENT. + * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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 "radeon_buffer_objects.h" + +#include "main/imports.h" +#include "main/mtypes.h" +#include "main/bufferobj.h" + +#include "radeon_common.h" + +struct radeon_buffer_object * +get_radeon_buffer_object(struct gl_buffer_object *obj) +{ + return (struct radeon_buffer_object *) obj; +} + +static struct gl_buffer_object * +radeonNewBufferObject(GLcontext * ctx, + GLuint name, + GLenum target) +{ + struct radeon_buffer_object *obj = CALLOC_STRUCT(radeon_buffer_object); + + _mesa_initialize_buffer_object(&obj->Base, name, target); + + obj->bo = NULL; + + return &obj->Base; +} + +/** + * Called via glDeleteBuffersARB(). + */ +static void +radeonDeleteBufferObject(GLcontext * ctx, + struct gl_buffer_object *obj) +{ + struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj); + + if (obj->Pointer) { + radeon_bo_unmap(radeon_obj->bo); + } + + if (radeon_obj->bo) { + radeon_bo_unref(radeon_obj->bo); + } + + _mesa_free(radeon_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 ctx->Driver.BufferData(). + * \return GL_TRUE for success, GL_FALSE if out of memory + */ +static GLboolean +radeonBufferData(GLcontext * ctx, + GLenum target, + GLsizeiptrARB size, + const GLvoid * data, + GLenum usage, + struct gl_buffer_object *obj) +{ + radeonContextPtr radeon = RADEON_CONTEXT(ctx); + struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj); + + radeon_obj->Base.Size = size; + radeon_obj->Base.Usage = usage; + + if (radeon_obj->bo != NULL) { + radeon_bo_unref(radeon_obj->bo); + radeon_obj->bo = NULL; + } + + if (size != 0) { + radeon_obj->bo = radeon_bo_open(radeon->radeonScreen->bom, + 0, + size, + 32, + RADEON_GEM_DOMAIN_GTT, + 0); + + if (!radeon_obj->bo) + return GL_FALSE; + + if (data != NULL) { + radeon_bo_map(radeon_obj->bo, GL_TRUE); + + _mesa_memcpy(radeon_obj->bo->ptr, data, size); + + radeon_bo_unmap(radeon_obj->bo); + } + } + return GL_TRUE; +} + +/** + * 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 +radeonBufferSubData(GLcontext * ctx, + GLenum target, + GLintptrARB offset, + GLsizeiptrARB size, + const GLvoid * data, + struct gl_buffer_object *obj) +{ + struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj); + + radeon_bo_map(radeon_obj->bo, GL_TRUE); + + _mesa_memcpy(radeon_obj->bo->ptr + offset, data, size); + + radeon_bo_unmap(radeon_obj->bo); +} + +/** + * Called via glGetBufferSubDataARB() + */ +static void +radeonGetBufferSubData(GLcontext * ctx, + GLenum target, + GLintptrARB offset, + GLsizeiptrARB size, + GLvoid * data, + struct gl_buffer_object *obj) +{ + struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj); + + radeon_bo_map(radeon_obj->bo, GL_FALSE); + + _mesa_memcpy(data, radeon_obj->bo->ptr + offset, size); + + radeon_bo_unmap(radeon_obj->bo); +} + +/** + * Called via glMapBufferARB() + */ +static void * +radeonMapBuffer(GLcontext * ctx, + GLenum target, + GLenum access, + struct gl_buffer_object *obj) +{ + struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj); + + if (access == GL_WRITE_ONLY_ARB) { + ctx->Driver.Flush(ctx); + } + + if (radeon_obj->bo == NULL) { + obj->Pointer = NULL; + return NULL; + } + + radeon_bo_map(radeon_obj->bo, access == GL_WRITE_ONLY_ARB); + + return obj->Pointer = radeon_obj->bo->ptr; +} + + +/** + * Called via glUnmapBufferARB() + */ +static GLboolean +radeonUnmapBuffer(GLcontext * ctx, + GLenum target, + struct gl_buffer_object *obj) +{ + struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj); + + if (radeon_obj->bo != NULL) { + radeon_bo_unmap(radeon_obj->bo); + obj->Pointer = NULL; + } + + return GL_TRUE; +} + +void +radeonInitBufferObjectFuncs(struct dd_function_table *functions) +{ + functions->NewBufferObject = radeonNewBufferObject; + functions->DeleteBuffer = radeonDeleteBufferObject; + functions->BufferData = radeonBufferData; + functions->BufferSubData = radeonBufferSubData; + functions->GetBufferSubData = radeonGetBufferSubData; + functions->MapBuffer = radeonMapBuffer; + functions->UnmapBuffer = radeonUnmapBuffer; +} |