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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.
*
**************************************************************************/
#ifndef vl_compositor_h
#define vl_compositor_h
#include "pipe/p_state.h"
#include "pipe/p_video_decoder.h"
#include "pipe/p_video_state.h"
#include "util/u_rect.h"
#include "vl_types.h"
struct pipe_context;
/**
* composing and displaying of image data
*/
#define VL_COMPOSITOR_MAX_LAYERS 16
struct vl_compositor_layer
{
bool clearing;
void *fs;
void *samplers[3];
void *blend;
struct pipe_sampler_view *sampler_views[3];
struct {
struct vertex2f tl, br;
} src, dst;
};
struct vl_compositor
{
struct pipe_context *pipe;
struct pipe_framebuffer_state fb_state;
struct pipe_viewport_state viewport;
struct pipe_scissor_state scissor;
struct pipe_vertex_buffer vertex_buf;
struct pipe_resource *csc_matrix;
void *sampler_linear;
void *sampler_nearest;
void *blend_clear, *blend_add;
void *rast;
void *dsa;
void *vertex_elems_state;
void *vs;
void *fs_video_buffer;
void *fs_rgba;
struct {
void *rgb;
void *yuv;
} fs_palette;
union pipe_color_union clear_color;
unsigned used_layers:VL_COMPOSITOR_MAX_LAYERS;
struct vl_compositor_layer layers[VL_COMPOSITOR_MAX_LAYERS];
};
/**
* initialize this compositor
*/
bool
vl_compositor_init(struct vl_compositor *compositor, struct pipe_context *pipe);
/**
* set yuv -> rgba conversion matrix
*/
void
vl_compositor_set_csc_matrix(struct vl_compositor *compositor, const float mat[16]);
/**
* reset dirty area, so it's cleared with the clear colour
*/
void
vl_compositor_reset_dirty_area(struct u_rect *dirty);
/**
* set the clear color
*/
void
vl_compositor_set_clear_color(struct vl_compositor *compositor, union pipe_color_union *color);
/**
* get the clear color
*/
void
vl_compositor_get_clear_color(struct vl_compositor *compositor, union pipe_color_union *color);
/**
* set overlay samplers
*/
/*@{*/
/**
* reset all currently set layers
*/
void
vl_compositor_clear_layers(struct vl_compositor *compositor);
/**
* set the blender used to render a layer
*/
void
vl_compositor_set_layer_blend(struct vl_compositor *compositor,
unsigned layer, void *blend, bool is_clearing);
/**
* set a video buffer as a layer to render
*/
void
vl_compositor_set_buffer_layer(struct vl_compositor *compositor,
unsigned layer,
struct pipe_video_buffer *buffer,
struct pipe_video_rect *src_rect,
struct pipe_video_rect *dst_rect);
/**
* set a paletted sampler as a layer to render
*/
void
vl_compositor_set_palette_layer(struct vl_compositor *compositor,
unsigned layer,
struct pipe_sampler_view *indexes,
struct pipe_sampler_view *palette,
struct pipe_video_rect *src_rect,
struct pipe_video_rect *dst_rect,
bool include_color_conversion);
/**
* set a rgba sampler as a layer to render
*/
void
vl_compositor_set_rgba_layer(struct vl_compositor *compositor,
unsigned layer,
struct pipe_sampler_view *rgba,
struct pipe_video_rect *src_rect,
struct pipe_video_rect *dst_rect);
/*@}*/
/**
* render the layers to the frontbuffer
*/
void
vl_compositor_render(struct vl_compositor *compositor,
struct pipe_surface *dst_surface,
struct pipe_video_rect *dst_area,
struct pipe_video_rect *dst_clip,
struct u_rect *dirty_area);
/**
* destroy this compositor
*/
void
vl_compositor_cleanup(struct vl_compositor *compositor);
#endif /* vl_compositor_h */
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