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