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 VMWARE 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_codec.h"
  33 #include "pipe/p_video_state.h"
  34
  35 #include "util/u_rect.h"
  36
  37 #include "vl_types.h"
  38 #include "vl_csc.h"
  39
  40 struct pipe_context;
  41
  42 /**
  43  * composing and displaying of image data
  44  */
  45
  46 #define VL_COMPOSITOR_MAX_LAYERS 16
  47 #define VL_COMPOSITOR_MIN_DIRTY (0)
  48 #define VL_COMPOSITOR_MAX_DIRTY (1 << 15)
  49
  50 /* deinterlace allgorithem */
  51 enum vl_compositor_deinterlace
  52 {
  53    VL_COMPOSITOR_WEAVE,
  54    VL_COMPOSITOR_BOB_TOP,
  55    VL_COMPOSITOR_BOB_BOTTOM
  56 };
  57
  58 /* clockwise degree */
  59 enum vl_compositor_rotation
  60 {
  61    VL_COMPOSITOR_ROTATE_0,
  62    VL_COMPOSITOR_ROTATE_90,
  63    VL_COMPOSITOR_ROTATE_180,
  64    VL_COMPOSITOR_ROTATE_270
  65 };
  66
  67 struct vl_compositor_layer
  68 {
  69    bool clearing;
  70
  71    bool viewport_valid;
  72    struct pipe_viewport_state viewport;
  73
  74    void *fs;
  75    void *cs;
  76    void *samplers[3];
  77    void *blend;
  78
  79    struct pipe_sampler_view *sampler_views[3];
  80    struct {
  81       struct vertex2f tl, br;
  82    } src, dst;
  83    struct vertex2f zw;
  84    struct vertex4f colors[4];
  85    enum vl_compositor_rotation rotate;
  86 };
  87
  88 struct vl_compositor_state
  89 {
  90    struct pipe_context *pipe;
  91
  92    bool scissor_valid;
  93    struct pipe_scissor_state scissor;
  94    struct pipe_resource *shader_params;
  95
  96    union pipe_color_union clear_color;
  97
  98    unsigned used_layers:VL_COMPOSITOR_MAX_LAYERS;
  99    struct vl_compositor_layer layers[VL_COMPOSITOR_MAX_LAYERS];
 100 };
 101
 102 struct vl_compositor
 103 {
 104    struct pipe_context *pipe;
 105
 106    struct pipe_framebuffer_state fb_state;
 107    struct pipe_vertex_buffer vertex_buf;
 108
 109    void *sampler_linear;
 110    void *sampler_nearest;
 111    void *blend_clear, *blend_add;
 112    void *rast;
 113    void *dsa;
 114    void *vertex_elems_state;
 115
 116    void *vs;
 117    void *fs_video_buffer;
 118    void *fs_weave_rgb;
 119    void *fs_rgba;
 120    void *cs_video_buffer;
 121    void *cs_weave_rgb;
 122    void *cs_rgba;
 123
 124    bool pipe_compute_supported;
 125
 126    struct {
 127       struct {
 128          void *y;
 129          void *uv;
 130       } weave;
 131       struct {
 132          void *y;
 133          void *uv;
 134       } bob;
 135    } fs_yuv;
 136
 137    struct {
 138       void *rgb;
 139       void *yuv;
 140    } fs_palette;
 141
 142    struct {
 143       void *y;
 144       void *uv;
 145    } fs_rgb_yuv;
 146 };
 147
 148 /**
 149  * initialize this compositor
 150  */
 151 bool
 152 vl_compositor_init(struct vl_compositor *compositor, struct pipe_context *pipe);
 153
 154 /**
 155  * init state bag
 156  */
 157 bool
 158 vl_compositor_init_state(struct vl_compositor_state *state, struct pipe_context *pipe);
 159
 160 /**
 161  * set yuv -> rgba conversion matrix
 162  */
 163 bool
 164 vl_compositor_set_csc_matrix(struct vl_compositor_state *settings,
 165                              const vl_csc_matrix *matrix,
 166                              float luma_min, float luma_max);
 167
 168 /**
 169  * reset dirty area, so it's cleared with the clear colour
 170  */
 171 void
 172 vl_compositor_reset_dirty_area(struct u_rect *dirty);
 173
 174 /**
 175  * set the clear color
 176  */
 177 void
 178 vl_compositor_set_clear_color(struct vl_compositor_state *settings, union pipe_color_union *color);
 179
 180 /**
 181  * get the clear color
 182  */
 183 void
 184 vl_compositor_get_clear_color(struct vl_compositor_state *settings, union pipe_color_union *color);
 185
 186 /**
 187  * set the destination clipping
 188  */
 189 void
 190 vl_compositor_set_dst_clip(struct vl_compositor_state *settings, struct u_rect *dst_clip);
 191
 192 /**
 193  * set overlay samplers
 194  */
 195 /*@{*/
 196
 197 /**
 198  * reset all currently set layers
 199  */
 200 void
 201 vl_compositor_clear_layers(struct vl_compositor_state *state);
 202
 203 /**
 204  * set the blender used to render a layer
 205  */
 206 void
 207 vl_compositor_set_layer_blend(struct vl_compositor_state *state,
 208                               unsigned layer, void *blend, bool is_clearing);
 209
 210 /**
 211  * set the layer destination area
 212  */
 213 void
 214 vl_compositor_set_layer_dst_area(struct vl_compositor_state *settings,
 215                                  unsigned layer, struct u_rect *dst_area);
 216
 217 /**
 218  * set a video buffer as a layer to render
 219  */
 220 void
 221 vl_compositor_set_buffer_layer(struct vl_compositor_state *state,
 222                                struct vl_compositor *compositor,
 223                                unsigned layer,
 224                                struct pipe_video_buffer *buffer,
 225                                struct u_rect *src_rect,
 226                                struct u_rect *dst_rect,
 227                                enum vl_compositor_deinterlace deinterlace);
 228
 229 /**
 230  * set a paletted sampler as a layer to render
 231  */
 232 void
 233 vl_compositor_set_palette_layer(struct vl_compositor_state *state,
 234                                 struct vl_compositor *compositor,
 235                                 unsigned layer,
 236                                 struct pipe_sampler_view *indexes,
 237                                 struct pipe_sampler_view *palette,
 238                                 struct u_rect *src_rect,
 239                                 struct u_rect *dst_rect,
 240                                 bool include_color_conversion);
 241
 242 /**
 243  * set a rgba sampler as a layer to render
 244  */
 245 void
 246 vl_compositor_set_rgba_layer(struct vl_compositor_state *state,
 247                              struct vl_compositor *compositor,
 248                              unsigned layer,
 249                              struct pipe_sampler_view *rgba,
 250                              struct u_rect *src_rect,
 251                              struct u_rect *dst_rect,
 252                              struct vertex4f *colors);
 253
 254 /**
 255  * set the layer rotation
 256  */
 257 void
 258 vl_compositor_set_layer_rotation(struct vl_compositor_state *state,
 259                                  unsigned layer,
 260                                  enum vl_compositor_rotation rotate);
 261
 262 /**
 263  * deinterlace yuv buffer with full abilities
 264  */
 265 void
 266 vl_compositor_yuv_deint_full(struct vl_compositor_state *state,
 267                              struct vl_compositor *compositor,
 268                              struct pipe_video_buffer *src,
 269                              struct pipe_video_buffer *dst,
 270                              struct u_rect *src_rect,
 271                              struct u_rect *dst_rect,
 272                              enum vl_compositor_deinterlace deinterlace);
 273
 274 /**
 275 + * convert rgb to yuv
 276 + */
 277 void
 278 vl_compositor_convert_rgb_to_yuv(struct vl_compositor_state *state,
 279                                  struct vl_compositor *compositor,
 280                                  unsigned layer,
 281                                  struct pipe_resource *src_res,
 282                                  struct pipe_video_buffer *dst,
 283                                  struct u_rect *src_rect,
 284                                  struct u_rect *dst_rect);
 285
 286 /*@}*/
 287
 288 /**
 289  * render the layers to the frontbuffer
 290  */
 291 void
 292 vl_compositor_render(struct vl_compositor_state *state,
 293                      struct vl_compositor       *compositor,
 294                      struct pipe_surface        *dst_surface,
 295                      struct u_rect              *dirty_area,
 296                      bool                        clear_dirty);
 297
 298 /**
 299  * destroy this compositor
 300  */
 301 void
 302 vl_compositor_cleanup(struct vl_compositor *compositor);
 303
 304 /**
 305  * destroy this state bag
 306  */
 307 void
 308 vl_compositor_cleanup_state(struct vl_compositor_state *state);
 309
 310 #endif /* vl_compositor_h */