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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