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/**************************************************************************
*
* Copyright 2011 Christian König.
* 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 VMWARE 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.
*
**************************************************************************/
#ifndef vl_video_buffer_h
#define vl_video_buffer_h
#include "pipe/p_context.h"
#include "pipe/p_video_codec.h"
#include "vl_defines.h"
/**
* implementation of a planar ycbcr buffer
*/
/* planar buffer for vl data upload and manipulation */
struct vl_video_buffer
{
struct pipe_video_buffer base;
unsigned num_planes;
struct pipe_resource *resources[VL_NUM_COMPONENTS];
struct pipe_sampler_view *sampler_view_planes[VL_NUM_COMPONENTS];
struct pipe_sampler_view *sampler_view_components[VL_NUM_COMPONENTS];
struct pipe_surface *surfaces[VL_MAX_SURFACES];
};
static inline void
vl_video_buffer_adjust_size(unsigned *width, unsigned *height, unsigned plane,
enum pipe_video_chroma_format chroma_format,
bool interlaced)
{
if (interlaced) {
*height /= 2;
}
if (plane > 0) {
if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) {
*width /= 2;
*height /= 2;
} else if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) {
*width /= 2;
}
}
}
/**
* get subformats for each plane
*/
void
vl_get_video_buffer_formats(struct pipe_screen *screen, enum pipe_format format,
enum pipe_format out_format[VL_NUM_COMPONENTS]);
/**
* get YUV plane order
*/
const unsigned *
vl_video_buffer_plane_order(enum pipe_format format);
/**
* get maximum size of video buffers
*/
unsigned
vl_video_buffer_max_size(struct pipe_screen *screen);
/**
* check if video buffer format is supported for a codec/profile
* can be used as default implementation of screen->is_video_format_supported
*/
bool
vl_video_buffer_is_format_supported(struct pipe_screen *screen,
enum pipe_format format,
enum pipe_video_profile profile,
enum pipe_video_entrypoint entrypoint);
/*
* set the associated data for the given video buffer
*/
void
vl_video_buffer_set_associated_data(struct pipe_video_buffer *vbuf,
struct pipe_video_codec *vcodec,
void *associated_data,
void (*destroy_associated_data)(void *));
/*
* get the associated data for the given video buffer
*/
void *
vl_video_buffer_get_associated_data(struct pipe_video_buffer *vbuf,
struct pipe_video_codec *vcodec);
/**
* fill a resource template for the given plane
*/
void
vl_video_buffer_template(struct pipe_resource *templ,
const struct pipe_video_buffer *templat,
enum pipe_format resource_format,
unsigned depth, unsigned array_size,
unsigned usage, unsigned plane);
/**
* creates a video buffer, can be used as a standard implementation for pipe->create_video_buffer
*/
struct pipe_video_buffer *
vl_video_buffer_create(struct pipe_context *pipe,
const struct pipe_video_buffer *templat);
/**
* extended create function, gets depth, array_size, usage and formats for each plane seperately
*/
struct pipe_video_buffer *
vl_video_buffer_create_ex(struct pipe_context *pipe,
const struct pipe_video_buffer *templat,
const enum pipe_format resource_formats[VL_NUM_COMPONENTS],
unsigned depth, unsigned array_size, unsigned usage);
/**
* even more extended create function, provide the pipe_resource for each plane
*/
struct pipe_video_buffer *
vl_video_buffer_create_ex2(struct pipe_context *pipe,
const struct pipe_video_buffer *templat,
struct pipe_resource *resources[VL_NUM_COMPONENTS]);
#endif /* vl_video_buffer_h */
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