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/*
* Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
*
* 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
* on 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
* THE AUTHOR(S) AND/OR THEIR 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.
*
* Authors:
* Jerome Glisse
* Corbin Simpson <MostAwesomeDude@gmail.com>
*/
#include <pipe/p_screen.h>
#include <util/u_format.h>
#include <util/u_math.h>
#include <util/u_inlines.h>
#include <util/u_memory.h>
#include "r600_screen.h"
#include "r600_texture.h"
#include "r600_context.h"
static u32 r600_domain_from_usage(unsigned usage)
{
u32 domain = RADEON_GEM_DOMAIN_GTT;
if (usage & PIPE_BUFFER_USAGE_GPU_WRITE) {
domain |= RADEON_GEM_DOMAIN_VRAM;
}
if (usage & PIPE_BUFFER_USAGE_PIXEL) {
domain |= RADEON_GEM_DOMAIN_VRAM;
}
if (usage & PIPE_BUFFER_USAGE_VERTEX) {
domain |= RADEON_GEM_DOMAIN_GTT;
}
if (usage & PIPE_BUFFER_USAGE_INDEX) {
domain |= RADEON_GEM_DOMAIN_GTT;
}
return domain;
}
static struct pipe_buffer *r600_buffer_create(struct pipe_screen *screen,
unsigned alignment,
unsigned usage,
unsigned size)
{
struct r600_screen *rscreen = r600_screen(screen);
struct r600_pipe_buffer *rbuffer;
struct radeon_bo *bo;
struct pb_desc desc;
rbuffer = CALLOC_STRUCT(r600_pipe_buffer);
if (rbuffer == NULL)
return NULL;
pipe_reference_init(&rbuffer->base.reference, 1);
rbuffer->base.screen = screen;
rbuffer->base.alignment = alignment;
rbuffer->base.usage = usage;
rbuffer->base.size = size;
if (usage & PIPE_BUFFER_USAGE_CONSTANT) {
desc.alignment = alignment;
desc.usage = usage;
rbuffer->pb = pb_malloc_buffer_create(size, &desc);
if (rbuffer->pb == NULL) {
free(rbuffer);
return NULL;
}
return &rbuffer->base;
}
rbuffer->domain = r600_domain_from_usage(usage);
bo = radeon_bo(rscreen->rw, 0, size, alignment, NULL);
if (bo == NULL) {
FREE(rbuffer);
return NULL;
}
rbuffer->bo = bo;
return &rbuffer->base;
}
static struct pipe_buffer *r600_user_buffer_create(struct pipe_screen *screen,
void *ptr, unsigned bytes)
{
struct r600_pipe_buffer *rbuffer;
struct r600_screen *rscreen = r600_screen(screen);
rbuffer = (struct r600_pipe_buffer*)r600_buffer_create(screen, 0, 0, bytes);
if (rbuffer == NULL) {
return NULL;
}
radeon_bo_map(rscreen->rw, rbuffer->bo);
memcpy(rbuffer->bo->data, ptr, bytes);
radeon_bo_unmap(rscreen->rw, rbuffer->bo);
return &rbuffer->base;
}
static void r600_buffer_destroy(struct pipe_buffer *buffer)
{
struct r600_pipe_buffer *rbuffer = (struct r600_pipe_buffer*)buffer;
struct r600_screen *rscreen = r600_screen(buffer->screen);
if (rbuffer->pb) {
pipe_reference_init(&rbuffer->pb->base.reference, 0);
pb_destroy(rbuffer->pb);
rbuffer->pb = NULL;
}
if (rbuffer->bo) {
radeon_bo_decref(rscreen->rw, rbuffer->bo);
}
FREE(rbuffer);
}
static void *r600_buffer_map_range(struct pipe_screen *screen,
struct pipe_buffer *buffer,
unsigned offset, unsigned length,
unsigned usage)
{
struct r600_pipe_buffer *rbuffer = (struct r600_pipe_buffer*)buffer;
struct r600_screen *rscreen = r600_screen(buffer->screen);
int write = 0;
if (rbuffer->pb) {
return pb_map(rbuffer->pb, usage);
}
if (usage & PIPE_BUFFER_USAGE_DONTBLOCK) {
/* FIXME */
}
if (usage & PIPE_BUFFER_USAGE_CPU_WRITE) {
write = 1;
}
if (radeon_bo_map(rscreen->rw, rbuffer->bo)) {
return NULL;
}
return rbuffer->bo->data;
}
static void r600_buffer_unmap( struct pipe_screen *screen, struct pipe_buffer *buffer)
{
struct r600_pipe_buffer *rbuffer = (struct r600_pipe_buffer*)buffer;
struct r600_screen *rscreen = r600_screen(buffer->screen);
if (rbuffer->pb) {
pb_unmap(rbuffer->pb);
} else {
radeon_bo_unmap(rscreen->rw, rbuffer->bo);
}
}
static void r600_buffer_flush_mapped_range(struct pipe_screen *screen,
struct pipe_buffer *buf,
unsigned offset, unsigned length)
{
}
void r600_screen_init_buffer_functions(struct pipe_screen *screen)
{
screen->buffer_create = r600_buffer_create;
screen->user_buffer_create = r600_user_buffer_create;
screen->buffer_map_range = r600_buffer_map_range;
screen->buffer_flush_mapped_range = r600_buffer_flush_mapped_range;
screen->buffer_unmap = r600_buffer_unmap;
screen->buffer_destroy = r600_buffer_destroy;
}
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