vl_compositor.h revision 835ea8480f656ba4076e30813eb8c85965017266
1/************************************************************************** 2 * 3 * Copyright 2009 Younes Manton. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28#ifndef vl_compositor_h 29#define vl_compositor_h 30 31#include <pipe/p_state.h> 32#include <pipe/p_video_decoder.h> 33#include <pipe/p_video_state.h> 34 35#include "vl_types.h" 36 37struct pipe_context; 38 39/** 40 * composing and displaying of image data 41 */ 42 43#define VL_COMPOSITOR_MAX_LAYERS 16 44 45struct vl_compositor_layer 46{ 47 bool clearing; 48 49 void *fs; 50 void *samplers[3]; 51 52 struct pipe_sampler_view *sampler_views[3]; 53 struct { 54 struct vertex2f tl, br; 55 } src, dst; 56}; 57 58struct vl_compositor 59{ 60 struct pipe_context *pipe; 61 62 struct pipe_framebuffer_state fb_state; 63 struct pipe_viewport_state viewport; 64 struct pipe_vertex_buffer vertex_buf; 65 struct pipe_resource *csc_matrix; 66 67 void *sampler_linear; 68 void *sampler_nearest; 69 void *blend; 70 void *rast; 71 void *dsa; 72 void *vertex_elems_state; 73 74 void *vs; 75 void *fs_video_buffer; 76 void *fs_palette; 77 void *fs_rgba; 78 79 float clear_color[4]; 80 struct vertex2f dirty_tl, dirty_br; 81 82 unsigned used_layers:VL_COMPOSITOR_MAX_LAYERS; 83 struct vl_compositor_layer layers[VL_COMPOSITOR_MAX_LAYERS]; 84}; 85 86/** 87 * initialize this compositor 88 */ 89bool 90vl_compositor_init(struct vl_compositor *compositor, struct pipe_context *pipe); 91 92/** 93 * set yuv -> rgba conversion matrix 94 */ 95void 96vl_compositor_set_csc_matrix(struct vl_compositor *compositor, const float mat[16]); 97 98/** 99 * reset dirty area, so it's cleared with the clear colour 100 */ 101void 102vl_compositor_reset_dirty_area(struct vl_compositor *compositor); 103 104/** 105 * set the clear color 106 */ 107void 108vl_compositor_set_clear_color(struct vl_compositor *compositor, float color[4]); 109 110/** 111 * set overlay samplers 112 */ 113/*@{*/ 114 115/** 116 * reset all currently set layers 117 */ 118void 119vl_compositor_clear_layers(struct vl_compositor *compositor); 120 121/** 122 * set a video buffer as a layer to render 123 */ 124void 125vl_compositor_set_buffer_layer(struct vl_compositor *compositor, 126 unsigned layer, 127 struct pipe_video_buffer *buffer, 128 struct pipe_video_rect *src_rect, 129 struct pipe_video_rect *dst_rect); 130 131/** 132 * set a paletted sampler as a layer to render 133 */ 134void 135vl_compositor_set_palette_layer(struct vl_compositor *compositor, 136 unsigned layer, 137 struct pipe_sampler_view *indexes, 138 struct pipe_sampler_view *palette, 139 struct pipe_video_rect *src_rect, 140 struct pipe_video_rect *dst_rect); 141 142/** 143 * set a rgba sampler as a layer to render 144 */ 145void 146vl_compositor_set_rgba_layer(struct vl_compositor *compositor, 147 unsigned layer, 148 struct pipe_sampler_view *rgba, 149 struct pipe_video_rect *src_rect, 150 struct pipe_video_rect *dst_rect); 151 152/*@}*/ 153 154/** 155 * render the layers to the frontbuffer 156 */ 157void 158vl_compositor_render(struct vl_compositor *compositor, 159 struct pipe_surface *dst_surface, 160 struct pipe_video_rect *dst_area, 161 struct pipe_video_rect *dst_clip); 162 163/** 164* destroy this compositor 165*/ 166void 167vl_compositor_cleanup(struct vl_compositor *compositor); 168 169#endif /* vl_compositor_h */ 170