243 lines
6.3 KiB
C
243 lines
6.3 KiB
C
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/**************************************************************************
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*
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* Copyright 2009 Younes Manton.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef vl_compositor_h
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#define vl_compositor_h
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#include "pipe/p_state.h"
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#include "pipe/p_video_decoder.h"
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#include "pipe/p_video_state.h"
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#include "util/u_rect.h"
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#include "vl_types.h"
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#include "vl_csc.h"
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struct pipe_context;
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/**
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* composing and displaying of image data
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*/
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#define VL_COMPOSITOR_MAX_LAYERS 16
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/* deinterlace allgorithem */
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enum vl_compositor_deinterlace
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{
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VL_COMPOSITOR_WEAVE,
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VL_COMPOSITOR_BOB_TOP,
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VL_COMPOSITOR_BOB_BOTTOM
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};
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struct vl_compositor_layer
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{
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bool clearing;
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bool viewport_valid;
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struct pipe_viewport_state viewport;
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void *fs;
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void *samplers[3];
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void *blend;
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struct pipe_sampler_view *sampler_views[3];
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struct {
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struct vertex2f tl, br;
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} src, dst;
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struct vertex2f zw;
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struct vertex4f colors[4];
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};
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struct vl_compositor_state
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{
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struct pipe_context *pipe;
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bool scissor_valid;
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struct pipe_scissor_state scissor;
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struct pipe_resource *csc_matrix;
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union pipe_color_union clear_color;
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unsigned used_layers:VL_COMPOSITOR_MAX_LAYERS;
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struct vl_compositor_layer layers[VL_COMPOSITOR_MAX_LAYERS];
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};
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struct vl_compositor
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{
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struct pipe_context *pipe;
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struct pipe_framebuffer_state fb_state;
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struct pipe_vertex_buffer vertex_buf;
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void *sampler_linear;
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void *sampler_nearest;
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void *blend_clear, *blend_add;
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void *rast;
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void *dsa;
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void *vertex_elems_state;
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void *vs;
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void *fs_video_buffer;
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void *fs_weave;
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void *fs_rgba;
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struct {
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void *rgb;
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void *yuv;
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} fs_palette;
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};
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/**
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* initialize this compositor
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*/
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bool
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vl_compositor_init(struct vl_compositor *compositor, struct pipe_context *pipe);
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/**
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* init state bag
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*/
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bool
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vl_compositor_init_state(struct vl_compositor_state *state, struct pipe_context *pipe);
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/**
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* set yuv -> rgba conversion matrix
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*/
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void
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vl_compositor_set_csc_matrix(struct vl_compositor_state *settings, const vl_csc_matrix *matrix);
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/**
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* reset dirty area, so it's cleared with the clear colour
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*/
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void
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vl_compositor_reset_dirty_area(struct u_rect *dirty);
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/**
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* set the clear color
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*/
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void
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vl_compositor_set_clear_color(struct vl_compositor_state *settings, union pipe_color_union *color);
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/**
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* get the clear color
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*/
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void
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vl_compositor_get_clear_color(struct vl_compositor_state *settings, union pipe_color_union *color);
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/**
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* set the destination clipping
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*/
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void
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vl_compositor_set_dst_clip(struct vl_compositor_state *settings, struct u_rect *dst_clip);
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/**
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* set overlay samplers
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*/
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/*@{*/
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/**
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* reset all currently set layers
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*/
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void
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vl_compositor_clear_layers(struct vl_compositor_state *state);
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/**
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* set the blender used to render a layer
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*/
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void
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vl_compositor_set_layer_blend(struct vl_compositor_state *state,
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unsigned layer, void *blend, bool is_clearing);
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/**
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* set the layer destination area
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*/
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void
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vl_compositor_set_layer_dst_area(struct vl_compositor_state *settings,
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unsigned layer, struct u_rect *dst_area);
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/**
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* set a video buffer as a layer to render
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*/
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void
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vl_compositor_set_buffer_layer(struct vl_compositor_state *state,
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struct vl_compositor *compositor,
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unsigned layer,
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struct pipe_video_buffer *buffer,
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struct u_rect *src_rect,
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struct u_rect *dst_rect,
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enum vl_compositor_deinterlace deinterlace);
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/**
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* set a paletted sampler as a layer to render
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*/
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void
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vl_compositor_set_palette_layer(struct vl_compositor_state *state,
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struct vl_compositor *compositor,
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unsigned layer,
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struct pipe_sampler_view *indexes,
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struct pipe_sampler_view *palette,
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struct u_rect *src_rect,
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struct u_rect *dst_rect,
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bool include_color_conversion);
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/**
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* set a rgba sampler as a layer to render
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*/
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void
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vl_compositor_set_rgba_layer(struct vl_compositor_state *state,
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struct vl_compositor *compositor,
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unsigned layer,
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struct pipe_sampler_view *rgba,
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struct u_rect *src_rect,
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struct u_rect *dst_rect,
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struct vertex4f *colors);
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/*@}*/
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/**
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* render the layers to the frontbuffer
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*/
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void
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vl_compositor_render(struct vl_compositor_state *state,
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struct vl_compositor *compositor,
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struct pipe_surface *dst_surface,
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struct u_rect *dirty_area,
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bool clear_dirty);
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/**
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* destroy this compositor
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*/
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void
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vl_compositor_cleanup(struct vl_compositor *compositor);
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/**
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* destroy this state bag
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*/
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void
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vl_compositor_cleanup_state(struct vl_compositor_state *state);
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#endif /* vl_compositor_h */
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