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/**************************************************************************
*
* Copyright 2013 Advanced Micro Devices, Inc.
* 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 THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 <unistd.h>
#include "util/u_memory.h"
#include "util/u_video.h"
#include "vl/vl_defines.h"
#include "vl/vl_video_buffer.h"
#include "r600_pipe_common.h"
#include "radeon_video.h"
#include "radeon_vce.h"
/* generate an stream handle */
unsigned si_vid_alloc_stream_handle()
{
static unsigned counter = 0;
unsigned stream_handle = 0;
unsigned pid = getpid();
int i;
for (i = 0; i < 32; ++i)
stream_handle |= ((pid >> i) & 1) << (31 - i);
stream_handle ^= ++counter;
return stream_handle;
}
/* create a buffer in the winsys */
bool si_vid_create_buffer(struct pipe_screen *screen, struct rvid_buffer *buffer,
unsigned size, unsigned usage)
{
memset(buffer, 0, sizeof(*buffer));
buffer->usage = usage;
/* Hardware buffer placement restrictions require the kernel to be
* able to move buffers around individually, so request a
* non-sub-allocated buffer.
*/
buffer->res = (struct r600_resource *)
pipe_buffer_create(screen, PIPE_BIND_SHARED,
usage, size);
return buffer->res != NULL;
}
/* destroy a buffer */
void si_vid_destroy_buffer(struct rvid_buffer *buffer)
{
r600_resource_reference(&buffer->res, NULL);
}
/* reallocate a buffer, preserving its content */
bool si_vid_resize_buffer(struct pipe_screen *screen, struct radeon_winsys_cs *cs,
struct rvid_buffer *new_buf, unsigned new_size)
{
struct r600_common_screen *rscreen = (struct r600_common_screen *)screen;
struct radeon_winsys* ws = rscreen->ws;
unsigned bytes = MIN2(new_buf->res->buf->size, new_size);
struct rvid_buffer old_buf = *new_buf;
void *src = NULL, *dst = NULL;
if (!si_vid_create_buffer(screen, new_buf, new_size, new_buf->usage))
goto error;
src = ws->buffer_map(old_buf.res->buf, cs, PIPE_TRANSFER_READ);
if (!src)
goto error;
dst = ws->buffer_map(new_buf->res->buf, cs, PIPE_TRANSFER_WRITE);
if (!dst)
goto error;
memcpy(dst, src, bytes);
if (new_size > bytes) {
new_size -= bytes;
dst += bytes;
memset(dst, 0, new_size);
}
ws->buffer_unmap(new_buf->res->buf);
ws->buffer_unmap(old_buf.res->buf);
si_vid_destroy_buffer(&old_buf);
return true;
error:
if (src)
ws->buffer_unmap(old_buf.res->buf);
si_vid_destroy_buffer(new_buf);
*new_buf = old_buf;
return false;
}
/* clear the buffer with zeros */
void si_vid_clear_buffer(struct pipe_context *context, struct rvid_buffer* buffer)
{
struct r600_common_context *rctx = (struct r600_common_context*)context;
rctx->dma_clear_buffer(context, &buffer->res->b.b, 0,
buffer->res->buf->size, 0);
context->flush(context, NULL, 0);
}
/**
* join surfaces into the same buffer with identical tiling params
* sumup their sizes and replace the backend buffers with a single bo
*/
void si_vid_join_surfaces(struct r600_common_context *rctx,
struct pb_buffer** buffers[VL_NUM_COMPONENTS],
struct radeon_surf *surfaces[VL_NUM_COMPONENTS])
{
struct radeon_winsys* ws;
unsigned best_tiling, best_wh, off;
unsigned size, alignment;
struct pb_buffer *pb;
unsigned i, j;
ws = rctx->ws;
for (i = 0, best_tiling = 0, best_wh = ~0; i < VL_NUM_COMPONENTS; ++i) {
unsigned wh;
if (!surfaces[i])
continue;
if (rctx->chip_class < GFX9) {
/* choose the smallest bank w/h for now */
wh = surfaces[i]->u.legacy.bankw * surfaces[i]->u.legacy.bankh;
if (wh < best_wh) {
best_wh = wh;
best_tiling = i;
}
}
}
for (i = 0, off = 0; i < VL_NUM_COMPONENTS; ++i) {
if (!surfaces[i])
continue;
/* adjust the texture layer offsets */
off = align(off, surfaces[i]->surf_alignment);
if (rctx->chip_class < GFX9) {
/* copy the tiling parameters */
surfaces[i]->u.legacy.bankw = surfaces[best_tiling]->u.legacy.bankw;
surfaces[i]->u.legacy.bankh = surfaces[best_tiling]->u.legacy.bankh;
surfaces[i]->u.legacy.mtilea = surfaces[best_tiling]->u.legacy.mtilea;
surfaces[i]->u.legacy.tile_split = surfaces[best_tiling]->u.legacy.tile_split;
for (j = 0; j < ARRAY_SIZE(surfaces[i]->u.legacy.level); ++j)
surfaces[i]->u.legacy.level[j].offset += off;
} else {
surfaces[i]->u.gfx9.surf_offset += off;
for (j = 0; j < ARRAY_SIZE(surfaces[i]->u.gfx9.offset); ++j)
surfaces[i]->u.gfx9.offset[j] += off;
}
off += surfaces[i]->surf_size;
}
for (i = 0, size = 0, alignment = 0; i < VL_NUM_COMPONENTS; ++i) {
if (!buffers[i] || !*buffers[i])
continue;
size = align(size, (*buffers[i])->alignment);
size += (*buffers[i])->size;
alignment = MAX2(alignment, (*buffers[i])->alignment * 1);
}
if (!size)
return;
/* TODO: 2D tiling workaround */
alignment *= 2;
pb = ws->buffer_create(ws, size, alignment, RADEON_DOMAIN_VRAM,
RADEON_FLAG_GTT_WC);
if (!pb)
return;
for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
if (!buffers[i] || !*buffers[i])
continue;
pb_reference(buffers[i], pb);
}
pb_reference(&pb, NULL);
}
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