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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 "state_tracker/drm_api.h"
#include "r600_screen.h"
#include "r600_context.h"
extern struct u_resource_vtbl r600_buffer_vtbl;
static u32 r600_domain_from_usage(unsigned usage)
{
u32 domain = RADEON_GEM_DOMAIN_GTT;
if (usage & PIPE_BIND_RENDER_TARGET) {
domain |= RADEON_GEM_DOMAIN_VRAM;
}
if (usage & PIPE_BIND_DEPTH_STENCIL) {
domain |= RADEON_GEM_DOMAIN_VRAM;
}
if (usage & PIPE_BIND_SAMPLER_VIEW) {
domain |= RADEON_GEM_DOMAIN_VRAM;
}
/* also need BIND_BLIT_SOURCE/DESTINATION ? */
if (usage & PIPE_BIND_VERTEX_BUFFER) {
domain |= RADEON_GEM_DOMAIN_GTT;
}
if (usage & PIPE_BIND_INDEX_BUFFER) {
domain |= RADEON_GEM_DOMAIN_GTT;
}
return domain;
}
struct pipe_resource *r600_buffer_create(struct pipe_screen *screen,
const struct pipe_resource *templ)
{
struct r600_screen *rscreen = r600_screen(screen);
struct r600_buffer *rbuffer;
struct radeon_bo *bo;
struct pb_desc desc;
/* XXX We probably want a different alignment for buffers and textures. */
unsigned alignment = 4096;
rbuffer = CALLOC_STRUCT(r600_buffer);
if (rbuffer == NULL)
return NULL;
rbuffer->b.b = *templ;
pipe_reference_init(&rbuffer->b.b.reference, 1);
rbuffer->b.b.screen = screen;
rbuffer->b.vtbl = &r600_buffer_vtbl;
if (rbuffer->b.b.bind & PIPE_BIND_CONSTANT_BUFFER) {
desc.alignment = alignment;
desc.usage = rbuffer->b.b.bind;
rbuffer->pb = pb_malloc_buffer_create(rbuffer->b.b.width0,
&desc);
if (rbuffer->pb == NULL) {
free(rbuffer);
return NULL;
}
return &rbuffer->b.b;
}
rbuffer->domain = r600_domain_from_usage(rbuffer->b.b.bind);
bo = radeon_bo(rscreen->rw, 0, rbuffer->b.b.width0, alignment, NULL);
if (bo == NULL) {
FREE(rbuffer);
return NULL;
}
rbuffer->bo = bo;
return &rbuffer->b.b;
}
struct pipe_resource *r600_user_buffer_create(struct pipe_screen *screen,
void *ptr, unsigned bytes,
unsigned bind)
{
struct r600_buffer *rbuffer;
struct r600_screen *rscreen = r600_screen(screen);
struct pipe_resource templ;
memset(&templ, 0, sizeof(struct pipe_resource));
templ.target = PIPE_BUFFER;
templ.format = PIPE_FORMAT_R8_UNORM;
templ.usage = PIPE_USAGE_IMMUTABLE;
templ.bind = bind;
templ.width0 = bytes;
templ.height0 = 1;
templ.depth0 = 1;
rbuffer = (struct r600_buffer*)r600_buffer_create(screen, &templ);
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->b.b;
}
static void r600_buffer_destroy(struct pipe_screen *screen,
struct pipe_resource *buf)
{
struct r600_buffer *rbuffer = (struct r600_buffer*)buf;
struct r600_screen *rscreen = r600_screen(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_transfer_map(struct pipe_context *pipe,
struct pipe_transfer *transfer)
{
struct r600_buffer *rbuffer = (struct r600_buffer*)transfer->resource;
struct r600_screen *rscreen = r600_screen(pipe->screen);
int write = 0;
if (rbuffer->pb) {
return (uint8_t*)pb_map(rbuffer->pb, transfer->usage) + transfer->box.x;
}
if (transfer->usage & PIPE_TRANSFER_DONTBLOCK) {
/* FIXME */
}
if (transfer->usage & PIPE_TRANSFER_WRITE) {
write = 1;
}
if (radeon_bo_map(rscreen->rw, rbuffer->bo)) {
return NULL;
}
return (uint8_t*)rbuffer->bo->data + transfer->box.x;
}
static void r600_buffer_transfer_unmap(struct pipe_context *pipe,
struct pipe_transfer *transfer)
{
struct r600_buffer *rbuffer = (struct r600_buffer*)transfer->resource;
struct r600_screen *rscreen = r600_screen(pipe->screen);
if (rbuffer->pb) {
pb_unmap(rbuffer->pb);
} else {
radeon_bo_unmap(rscreen->rw, rbuffer->bo);
}
}
static void r600_buffer_transfer_flush_region(struct pipe_context *pipe,
struct pipe_transfer *transfer,
const struct pipe_box *box)
{
}
unsigned r600_buffer_is_referenced_by_cs(struct pipe_context *context,
struct pipe_resource *buf,
unsigned face, unsigned level)
{
/* XXX */
return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
}
struct pipe_resource *r600_buffer_from_handle(struct pipe_screen *screen,
struct winsys_handle *whandle)
{
struct radeon *rw = (struct radeon*)screen->winsys;
struct r600_buffer *rbuffer;
struct radeon_bo *bo = NULL;
bo = radeon_bo(rw, whandle->handle, 0, 0, NULL);
if (bo == NULL) {
return NULL;
}
rbuffer = CALLOC_STRUCT(r600_buffer);
if (rbuffer == NULL) {
radeon_bo_decref(rw, bo);
return NULL;
}
pipe_reference_init(&rbuffer->b.b.reference, 1);
rbuffer->b.b.target = PIPE_BUFFER;
rbuffer->b.b.screen = screen;
rbuffer->b.vtbl = &r600_buffer_vtbl;
rbuffer->bo = bo;
return &rbuffer->b.b;
}
struct u_resource_vtbl r600_buffer_vtbl =
{
u_default_resource_get_handle, /* get_handle */
r600_buffer_destroy, /* resource_destroy */
r600_buffer_is_referenced_by_cs, /* is_buffer_referenced */
u_default_get_transfer, /* get_transfer */
u_default_transfer_destroy, /* transfer_destroy */
r600_buffer_transfer_map, /* transfer_map */
r600_buffer_transfer_flush_region, /* transfer_flush_region */
r600_buffer_transfer_unmap, /* transfer_unmap */
u_default_transfer_inline_write /* transfer_inline_write */
};
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