1 /**********************************************************
2 * Copyright 2009-2011 VMware, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 *********************************************************
25 * Authors:
26 * Zack Rusin <zackr-at-vmware-dot-com>
27 * Thomas Hellstrom <thellstrom-at-vmware-dot-com>
28 */
29
30 #include "xa_context.h"
31 #include "xa_priv.h"
32 #include "util/u_inlines.h"
33 #include "util/u_sampler.h"
34 #include "util/u_surface.h"
35 #include "cso_cache/cso_context.h"
36
37 static void
xa_yuv_bind_blend_state(struct xa_context * r)38 xa_yuv_bind_blend_state(struct xa_context *r)
39 {
40 struct pipe_blend_state blend;
41
42 memset(&blend, 0, sizeof(struct pipe_blend_state));
43 blend.rt[0].blend_enable = 0;
44 blend.rt[0].colormask = PIPE_MASK_RGBA;
45
46 /* porter&duff src */
47 blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
48 blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
49 blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
50 blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
51
52 cso_set_blend(r->cso, &blend);
53 }
54
55 static void
xa_yuv_bind_shaders(struct xa_context * r)56 xa_yuv_bind_shaders(struct xa_context *r)
57 {
58 unsigned vs_traits = 0, fs_traits = 0;
59 struct xa_shader shader;
60
61 vs_traits |= VS_YUV;
62 fs_traits |= FS_YUV;
63
64 shader = xa_shaders_get(r->shaders, vs_traits, fs_traits);
65 cso_set_vertex_shader_handle(r->cso, shader.vs);
66 cso_set_fragment_shader_handle(r->cso, shader.fs);
67 }
68
69 static void
xa_yuv_bind_samplers(struct xa_context * r,struct xa_surface * yuv[])70 xa_yuv_bind_samplers(struct xa_context *r, struct xa_surface *yuv[])
71 {
72 struct pipe_sampler_state *samplers[3];
73 struct pipe_sampler_state sampler;
74 struct pipe_sampler_view view_templ;
75 unsigned int i;
76
77 memset(&sampler, 0, sizeof(struct pipe_sampler_state));
78
79 sampler.wrap_s = PIPE_TEX_WRAP_CLAMP;
80 sampler.wrap_t = PIPE_TEX_WRAP_CLAMP;
81 sampler.min_img_filter = PIPE_TEX_FILTER_LINEAR;
82 sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
83 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
84 sampler.normalized_coords = 1;
85
86 for (i = 0; i < 3; ++i) {
87 samplers[i] = &sampler;
88 u_sampler_view_default_template(&view_templ, yuv[i]->tex,
89 yuv[i]->tex->format);
90
91 r->bound_sampler_views[i] =
92 r->pipe->create_sampler_view(r->pipe, yuv[i]->tex, &view_templ);
93 }
94 r->num_bound_samplers = 3;
95 cso_set_samplers(r->cso, PIPE_SHADER_FRAGMENT, 3, (const struct pipe_sampler_state **)samplers);
96 r->pipe->set_sampler_views(r->pipe, PIPE_SHADER_FRAGMENT, 0, 3, 0, false, r->bound_sampler_views);
97 }
98
99 static void
xa_yuv_fs_constants(struct xa_context * r,const float conversion_matrix[])100 xa_yuv_fs_constants(struct xa_context *r, const float conversion_matrix[])
101 {
102 const int param_bytes = 16 * sizeof(float);
103
104 renderer_set_constants(r, PIPE_SHADER_FRAGMENT,
105 conversion_matrix, param_bytes);
106 }
107
108 XA_EXPORT int
xa_yuv_planar_blit(struct xa_context * r,int src_x,int src_y,int src_w,int src_h,int dst_x,int dst_y,int dst_w,int dst_h,struct xa_box * box,unsigned int num_boxes,const float conversion_matrix[],struct xa_surface * dst,struct xa_surface * yuv[])109 xa_yuv_planar_blit(struct xa_context *r,
110 int src_x,
111 int src_y,
112 int src_w,
113 int src_h,
114 int dst_x,
115 int dst_y,
116 int dst_w,
117 int dst_h,
118 struct xa_box *box,
119 unsigned int num_boxes,
120 const float conversion_matrix[],
121 struct xa_surface *dst, struct xa_surface *yuv[])
122 {
123 float scale_x;
124 float scale_y;
125 int ret;
126
127 if (dst_w == 0 || dst_h == 0)
128 return XA_ERR_NONE;
129
130 ret = xa_ctx_srf_create(r, dst);
131 if (ret != XA_ERR_NONE)
132 return -XA_ERR_NORES;
133
134 renderer_bind_destination(r, r->srf);
135 xa_yuv_bind_blend_state(r);
136 xa_yuv_bind_shaders(r);
137 xa_yuv_bind_samplers(r, yuv);
138 xa_yuv_fs_constants(r, conversion_matrix);
139
140 scale_x = (float)src_w / (float)dst_w;
141 scale_y = (float)src_h / (float)dst_h;
142
143 while (num_boxes--) {
144 int x = box->x1;
145 int y = box->y1;
146 int w = box->x2 - box->x1;
147 int h = box->y2 - box->y1;
148
149 xa_scissor_update(r, x, y, box->x2, box->y2);
150 renderer_draw_yuv(r,
151 (float)src_x + scale_x * (x - dst_x),
152 (float)src_y + scale_y * (y - dst_y),
153 scale_x * w, scale_y * h, x, y, w, h, yuv);
154 box++;
155 }
156
157 xa_context_flush(r);
158
159 xa_ctx_sampler_views_destroy(r);
160 xa_ctx_srf_destroy(r);
161
162 return XA_ERR_NONE;
163 }
164