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/**************************************************************************
*
* Copyright 2009 Younes Manton.
* 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 TUNGSTEN GRAPHICS 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 <pipe/p_video_context.h>
#include <util/u_memory.h>
#include <util/u_rect.h>
#include <util/u_video.h>
#include "vl_context.h"
#include "vl_compositor.h"
#include "vl_mpeg12_decoder.h"
static void
vl_context_destroy(struct pipe_video_context *context)
{
struct vl_context *ctx = (struct vl_context*)context;
assert(context);
FREE(ctx);
}
static struct pipe_video_decoder *
vl_context_create_decoder(struct pipe_video_context *context,
enum pipe_video_profile profile,
enum pipe_video_entrypoint entrypoint,
enum pipe_video_chroma_format chroma_format,
unsigned width, unsigned height)
{
struct vl_context *ctx = (struct vl_context*)context;
unsigned buffer_width, buffer_height;
bool pot_buffers;
assert(context);
assert(width > 0 && height > 0);
pot_buffers = !ctx->base.screen->get_video_param(ctx->base.screen, profile, PIPE_VIDEO_CAP_NPOT_TEXTURES);
buffer_width = pot_buffers ? util_next_power_of_two(width) : align(width, MACROBLOCK_WIDTH);
buffer_height = pot_buffers ? util_next_power_of_two(height) : align(height, MACROBLOCK_HEIGHT);
switch (u_reduce_video_profile(profile)) {
case PIPE_VIDEO_CODEC_MPEG12:
return vl_create_mpeg12_decoder(context, ctx->pipe, profile, entrypoint,
chroma_format, buffer_width, buffer_height);
default:
return NULL;
}
return NULL;
}
static struct pipe_video_buffer *
vl_context_create_buffer(struct pipe_video_context *context,
enum pipe_format buffer_format,
enum pipe_video_chroma_format chroma_format,
unsigned width, unsigned height)
{
struct vl_context *ctx = (struct vl_context*)context;
const enum pipe_format *resource_formats;
struct pipe_video_buffer *result;
unsigned buffer_width, buffer_height;
bool pot_buffers;
assert(context);
assert(width > 0 && height > 0);
pot_buffers = !ctx->base.screen->get_video_param
(
ctx->base.screen,
PIPE_VIDEO_PROFILE_UNKNOWN,
PIPE_VIDEO_CAP_NPOT_TEXTURES
);
resource_formats = vl_video_buffer_formats(ctx->pipe->screen, buffer_format);
if (!resource_formats)
return NULL;
buffer_width = pot_buffers ? util_next_power_of_two(width) : align(width, MACROBLOCK_WIDTH);
buffer_height = pot_buffers ? util_next_power_of_two(height) : align(height, MACROBLOCK_HEIGHT);
result = vl_video_buffer_init(context, ctx->pipe,
buffer_width, buffer_height, 1,
chroma_format,
resource_formats,
PIPE_USAGE_STATIC);
if (result) // TODO move format handling into vl_video_buffer
result->buffer_format = buffer_format;
return result;
}
struct pipe_video_context *
vl_create_context(struct pipe_context *pipe)
{
struct vl_context *ctx;
ctx = CALLOC_STRUCT(vl_context);
if (!ctx)
return NULL;
ctx->base.screen = pipe->screen;
ctx->base.destroy = vl_context_destroy;
ctx->base.create_decoder = vl_context_create_decoder;
ctx->base.create_buffer = vl_context_create_buffer;
ctx->pipe = pipe;
return &ctx->base;
}
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