1 /**************************************************************************
2 *
3 * Copyright 2010 Jakob Bornecrantz
4 * Copyright 2011 Lauri Kasanen
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28
29 #include "postprocess/postprocess.h"
30 #include "postprocess/pp_private.h"
31
32 #include "cso_cache/cso_context.h"
33 #include "pipe/p_screen.h"
34 #include "pipe/p_context.h"
35 #include "pipe/p_state.h"
36 #include "pipe/p_shader_tokens.h"
37 #include "util/u_inlines.h"
38 #include "util/u_simple_shaders.h"
39 #include "util/u_memory.h"
40
41 /** Initialize the internal details */
42 struct pp_program *
pp_init_prog(struct pp_queue_t * ppq,struct pipe_context * pipe,struct cso_context * cso,struct st_context * st,pp_st_invalidate_state_func st_invalidate_state)43 pp_init_prog(struct pp_queue_t *ppq, struct pipe_context *pipe,
44 struct cso_context *cso, struct st_context *st,
45 pp_st_invalidate_state_func st_invalidate_state)
46 {
47 struct pp_program *p;
48
49 pp_debug("Initializing program\n");
50 if (!pipe)
51 return NULL;
52
53 p = CALLOC(1, sizeof(struct pp_program));
54 if (!p)
55 return NULL;
56
57 p->screen = pipe->screen;
58 p->pipe = pipe;
59 p->cso = cso;
60 p->st = st;
61 p->st_invalidate_state = st_invalidate_state;
62
63 {
64 static const float verts[4][2][4] = {
65 {
66 {1.0f, 1.0f, 0.0f, 1.0f},
67 {1.0f, 1.0f, 0.0f, 1.0f}
68 },
69 {
70 {-1.0f, 1.0f, 0.0f, 1.0f},
71 {0.0f, 1.0f, 0.0f, 1.0f}
72 },
73 {
74 {-1.0f, -1.0f, 0.0f, 1.0f},
75 {0.0f, 0.0f, 0.0f, 1.0f}
76 },
77 {
78 {1.0f, -1.0f, 0.0f, 1.0f},
79 {1.0f, 0.0f, 0.0f, 1.0f}
80 }
81 };
82
83 p->vbuf = pipe_buffer_create(pipe->screen, PIPE_BIND_VERTEX_BUFFER,
84 PIPE_USAGE_DEFAULT, sizeof(verts));
85 pipe_buffer_write(p->pipe, p->vbuf, 0, sizeof(verts), verts);
86 }
87
88 p->blend.rt[0].colormask = PIPE_MASK_RGBA;
89 p->blend.rt[0].rgb_src_factor = p->blend.rt[0].alpha_src_factor =
90 PIPE_BLENDFACTOR_SRC_ALPHA;
91 p->blend.rt[0].rgb_dst_factor = p->blend.rt[0].alpha_dst_factor =
92 PIPE_BLENDFACTOR_INV_SRC_ALPHA;
93
94 p->rasterizer.cull_face = PIPE_FACE_NONE;
95 p->rasterizer.half_pixel_center = 1;
96 p->rasterizer.bottom_edge_rule = 1;
97 p->rasterizer.depth_clip_near = 1;
98 p->rasterizer.depth_clip_far = 1;
99
100 p->sampler.wrap_s = p->sampler.wrap_t = p->sampler.wrap_r =
101 PIPE_TEX_WRAP_CLAMP_TO_EDGE;
102
103 p->sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
104 p->sampler.min_img_filter = p->sampler.mag_img_filter =
105 PIPE_TEX_FILTER_LINEAR;
106
107 p->sampler_point.wrap_s = p->sampler_point.wrap_t =
108 p->sampler_point.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
109 p->sampler_point.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
110 p->sampler_point.min_img_filter = p->sampler_point.mag_img_filter =
111 PIPE_TEX_FILTER_NEAREST;
112
113 p->velem.count = 2;
114 p->velem.velems[0].src_offset = 0;
115 p->velem.velems[0].instance_divisor = 0;
116 p->velem.velems[0].vertex_buffer_index = 0;
117 p->velem.velems[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
118 p->velem.velems[0].src_stride = 2 * 4 * sizeof(float);
119 p->velem.velems[1].src_offset = 1 * 4 * sizeof(float);
120 p->velem.velems[1].instance_divisor = 0;
121 p->velem.velems[1].vertex_buffer_index = 0;
122 p->velem.velems[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
123 p->velem.velems[1].src_stride = 2 * 4 * sizeof(float);
124
125 if (!p->screen->is_format_supported(p->screen,
126 PIPE_FORMAT_R32G32B32A32_FLOAT,
127 PIPE_BUFFER, 1, 1,
128 PIPE_BIND_VERTEX_BUFFER))
129 pp_debug("Vertex buf format fail\n");
130
131
132 {
133 const enum tgsi_semantic semantic_names[] = { TGSI_SEMANTIC_POSITION,
134 TGSI_SEMANTIC_GENERIC
135 };
136 const unsigned semantic_indexes[] = { 0, 0 };
137 p->passvs = util_make_vertex_passthrough_shader(p->pipe, 2,
138 semantic_names,
139 semantic_indexes, false);
140 }
141
142 p->framebuffer.nr_cbufs = 1;
143
144 p->surf.format = PIPE_FORMAT_B8G8R8A8_UNORM;
145
146 return p;
147 }
148