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_mc_h
29 #define vl_mc_h
30 
31 #include "pipe/p_state.h"
32 #include "pipe/p_video_state.h"
33 
34 #include "tgsi/tgsi_ureg.h"
35 
36 #include "vl_defines.h"
37 #include "vl_types.h"
38 
39 #define VL_MC_NUM_BLENDERS (1 << VL_NUM_COMPONENTS)
40 
41 struct pipe_context;
42 
43 struct vl_mc
44 {
45    struct pipe_context *pipe;
46    unsigned buffer_width;
47    unsigned buffer_height;
48    unsigned macroblock_size;
49 
50    void *rs_state;
51 
52    void *blend_clear[VL_MC_NUM_BLENDERS];
53    void *blend_add[VL_MC_NUM_BLENDERS];
54    void *blend_sub[VL_MC_NUM_BLENDERS];
55    void *vs_ref, *vs_ycbcr;
56    void *fs_ref, *fs_ycbcr, *fs_ycbcr_sub;
57    void *sampler_ref;
58 };
59 
60 struct vl_mc_buffer
61 {
62    bool surface_cleared;
63 
64    struct pipe_viewport_state viewport;
65    struct pipe_framebuffer_state fb_state;
66 };
67 
68 typedef void (*vl_mc_ycbcr_vert_shader)(void *priv, struct vl_mc *mc,
69                                         struct ureg_program *shader,
70                                         unsigned first_output,
71                                         struct ureg_dst tex);
72 
73 typedef void (*vl_mc_ycbcr_frag_shader)(void *priv, struct vl_mc *mc,
74                                         struct ureg_program *shader,
75                                         unsigned first_input,
76                                         struct ureg_dst dst);
77 
78 bool vl_mc_init(struct vl_mc *renderer, struct pipe_context *pipe,
79                 unsigned picture_width, unsigned picture_height,
80                 unsigned macroblock_size, float scale,
81                 vl_mc_ycbcr_vert_shader vs_callback,
82                 vl_mc_ycbcr_frag_shader fs_callback,
83                 void *callback_priv);
84 
85 void vl_mc_cleanup(struct vl_mc *renderer);
86 
87 bool vl_mc_init_buffer(struct vl_mc *renderer, struct vl_mc_buffer *buffer);
88 
89 void vl_mc_cleanup_buffer(struct vl_mc_buffer *buffer);
90 
91 void vl_mc_set_surface(struct vl_mc_buffer *buffer, struct pipe_surface *surface);
92 
93 void vl_mc_render_ref(struct vl_mc *renderer, struct vl_mc_buffer *buffer, struct pipe_sampler_view *ref);
94 
95 void vl_mc_render_ycbcr(struct vl_mc *renderer, struct vl_mc_buffer *buffer, unsigned component, unsigned num_instances);
96 
97 #endif /* vl_mc_h */
98