reactos/dll/opengl/mesa/src/gallium/auxiliary/vl/vl_compositor.h

   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 "util/u_rect.h"
  36
  37 #include "vl_types.h"
  38
  39 struct pipe_context;
  40
  41 /**
  42  * composing and displaying of image data
  43  */
  44
  45 #define VL_COMPOSITOR_MAX_LAYERS 16
  46
  47 struct vl_compositor_layer
  48 {
  49    bool clearing;
  50
  51    void *fs;
  52    void *samplers[3];
  53    void *blend;
  54
  55    struct pipe_sampler_view *sampler_views[3];
  56    struct {
  57       struct vertex2f tl, br;
  58    } src, dst;
  59 };
  60
  61 struct vl_compositor
  62 {
  63    struct pipe_context *pipe;
  64
  65    struct pipe_framebuffer_state fb_state;
  66    struct pipe_viewport_state viewport;
  67    struct pipe_scissor_state scissor;
  68    struct pipe_vertex_buffer vertex_buf;
  69    struct pipe_resource *csc_matrix;
  70
  71    void *sampler_linear;
  72    void *sampler_nearest;
  73    void *blend_clear, *blend_add;
  74    void *rast;
  75    void *dsa;
  76    void *vertex_elems_state;
  77
  78    void *vs;
  79    void *fs_video_buffer;
  80    void *fs_rgba;
  81
  82    struct {
  83       void *rgb;
  84       void *yuv;
  85    } fs_palette;
  86
  87    union pipe_color_union clear_color;
  88
  89    unsigned used_layers:VL_COMPOSITOR_MAX_LAYERS;
  90    struct vl_compositor_layer layers[VL_COMPOSITOR_MAX_LAYERS];
  91 };
  92
  93 /**
  94  * initialize this compositor
  95  */
  96 bool
  97 vl_compositor_init(struct vl_compositor *compositor, struct pipe_context *pipe);
  98
  99 /**
 100  * set yuv -> rgba conversion matrix
 101  */
 102 void
 103 vl_compositor_set_csc_matrix(struct vl_compositor *compositor, const float mat[16]);
 104
 105 /**
 106  * reset dirty area, so it's cleared with the clear colour
 107  */
 108 void
 109 vl_compositor_reset_dirty_area(struct u_rect *dirty);
 110
 111 /**
 112  * set the clear color
 113  */
 114 void
 115 vl_compositor_set_clear_color(struct vl_compositor *compositor, union pipe_color_union *color);
 116
 117 /**
 118  * get the clear color
 119  */
 120 void
 121 vl_compositor_get_clear_color(struct vl_compositor *compositor, union pipe_color_union *color);
 122
 123 /**
 124  * set overlay samplers
 125  */
 126 /*@{*/
 127
 128 /**
 129  * reset all currently set layers
 130  */
 131 void
 132 vl_compositor_clear_layers(struct vl_compositor *compositor);
 133
 134 /**
 135  * set the blender used to render a layer
 136  */
 137 void
 138 vl_compositor_set_layer_blend(struct vl_compositor *compositor,
 139                               unsigned layer, void *blend, bool is_clearing);
 140
 141 /**
 142  * set a video buffer as a layer to render
 143  */
 144 void
 145 vl_compositor_set_buffer_layer(struct vl_compositor *compositor,
 146                                unsigned layer,
 147                                struct pipe_video_buffer *buffer,
 148                                struct pipe_video_rect *src_rect,
 149                                struct pipe_video_rect *dst_rect);
 150
 151 /**
 152  * set a paletted sampler as a layer to render
 153  */
 154 void
 155 vl_compositor_set_palette_layer(struct vl_compositor *compositor,
 156                                 unsigned layer,
 157                                 struct pipe_sampler_view *indexes,
 158                                 struct pipe_sampler_view *palette,
 159                                 struct pipe_video_rect *src_rect,
 160                                 struct pipe_video_rect *dst_rect,
 161                                 bool include_color_conversion);
 162
 163 /**
 164  * set a rgba sampler as a layer to render
 165  */
 166 void
 167 vl_compositor_set_rgba_layer(struct vl_compositor *compositor,
 168                              unsigned layer,
 169                              struct pipe_sampler_view *rgba,
 170                              struct pipe_video_rect *src_rect,
 171                              struct pipe_video_rect *dst_rect);
 172
 173 /*@}*/
 174
 175 /**
 176  * render the layers to the frontbuffer
 177  */
 178 void
 179 vl_compositor_render(struct vl_compositor   *compositor,
 180                      struct pipe_surface    *dst_surface,
 181                      struct pipe_video_rect *dst_area,
 182                      struct pipe_video_rect *dst_clip,
 183                      struct u_rect          *dirty_area);
 184
 185 /**
 186  * destroy this compositor
 187  */
 188 void
 189 vl_compositor_cleanup(struct vl_compositor *compositor);
 190
 191 #endif /* vl_compositor_h */