1 /**************************************************************************
3 * Copyright 2009 Younes Manton.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #ifndef vl_compositor_h
29 #define vl_compositor_h
31 #include "pipe/p_state.h"
32 #include "pipe/p_video_decoder.h"
33 #include "pipe/p_video_state.h"
35 #include "util/u_rect.h"
42 * composing and displaying of image data
45 #define VL_COMPOSITOR_MAX_LAYERS 16
47 struct vl_compositor_layer
55 struct pipe_sampler_view
*sampler_views
[3];
57 struct vertex2f tl
, br
;
63 struct pipe_context
*pipe
;
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
;
72 void *sampler_nearest
;
73 void *blend_clear
, *blend_add
;
76 void *vertex_elems_state
;
79 void *fs_video_buffer
;
87 union pipe_color_union clear_color
;
89 unsigned used_layers
:VL_COMPOSITOR_MAX_LAYERS
;
90 struct vl_compositor_layer layers
[VL_COMPOSITOR_MAX_LAYERS
];
94 * initialize this compositor
97 vl_compositor_init(struct vl_compositor
*compositor
, struct pipe_context
*pipe
);
100 * set yuv -> rgba conversion matrix
103 vl_compositor_set_csc_matrix(struct vl_compositor
*compositor
, const float mat
[16]);
106 * reset dirty area, so it's cleared with the clear colour
109 vl_compositor_reset_dirty_area(struct u_rect
*dirty
);
112 * set the clear color
115 vl_compositor_set_clear_color(struct vl_compositor
*compositor
, union pipe_color_union
*color
);
118 * get the clear color
121 vl_compositor_get_clear_color(struct vl_compositor
*compositor
, union pipe_color_union
*color
);
124 * set overlay samplers
129 * reset all currently set layers
132 vl_compositor_clear_layers(struct vl_compositor
*compositor
);
135 * set the blender used to render a layer
138 vl_compositor_set_layer_blend(struct vl_compositor
*compositor
,
139 unsigned layer
, void *blend
, bool is_clearing
);
142 * set a video buffer as a layer to render
145 vl_compositor_set_buffer_layer(struct vl_compositor
*compositor
,
147 struct pipe_video_buffer
*buffer
,
148 struct pipe_video_rect
*src_rect
,
149 struct pipe_video_rect
*dst_rect
);
152 * set a paletted sampler as a layer to render
155 vl_compositor_set_palette_layer(struct vl_compositor
*compositor
,
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
);
164 * set a rgba sampler as a layer to render
167 vl_compositor_set_rgba_layer(struct vl_compositor
*compositor
,
169 struct pipe_sampler_view
*rgba
,
170 struct pipe_video_rect
*src_rect
,
171 struct pipe_video_rect
*dst_rect
);
176 * render the layers to the frontbuffer
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
);
186 * destroy this compositor
189 vl_compositor_cleanup(struct vl_compositor
*compositor
);
191 #endif /* vl_compositor_h */