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 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 "cso_cache/cso_context.h" 31 #include "pipe/p_screen.h" 32 #include "pipe/p_context.h" 33 #include "pipe/p_state.h" 34 #include "pipe/p_shader_tokens.h" 35 #include "util/u_inlines.h" 36 #include "util/u_simple_shaders.h" 37 #include "util/u_memory.h" 38 39 /** Initialize the internal details */ 40 struct program * 41 pp_init_prog(struct pp_queue_t *ppq, struct pipe_screen *pscreen) 42 { 43 44 struct program *p; 45 46 pp_debug("Initializing program\n"); 47 if (!pscreen) 48 return NULL; 49 50 p = CALLOC(1, sizeof(struct program)); 51 if (!p) 52 return NULL; 53 54 p->screen = pscreen; 55 p->pipe = pscreen->context_create(pscreen, NULL); 56 57 /* XXX this doesn't use the cso_context of the state tracker, but creates 58 * its own. Having 2 existing cso_contexts use 1 pipe_context may cause 59 * undefined behavior! */ 60 p->cso = cso_create_context(p->pipe); 61 62 { 63 static const float verts[4][2][4] = { 64 { 65 {1.0f, 1.0f, 0.0f, 1.0f}, 66 {1.0f, 1.0f, 0.0f, 1.0f} 67 }, 68 { 69 {-1.0f, 1.0f, 0.0f, 1.0f}, 70 {0.0f, 1.0f, 0.0f, 1.0f} 71 }, 72 { 73 {-1.0f, -1.0f, 0.0f, 1.0f}, 74 {0.0f, 0.0f, 0.0f, 1.0f} 75 }, 76 { 77 {1.0f, -1.0f, 0.0f, 1.0f}, 78 {1.0f, 0.0f, 0.0f, 1.0f} 79 } 80 }; 81 82 p->vbuf = pipe_buffer_create(pscreen, PIPE_BIND_VERTEX_BUFFER, 83 PIPE_USAGE_STATIC, sizeof(verts)); 84 pipe_buffer_write(p->pipe, p->vbuf, 0, sizeof(verts), verts); 85 } 86 87 p->blend.rt[0].colormask = PIPE_MASK_RGBA; 88 p->blend.rt[0].rgb_src_factor = p->blend.rt[0].alpha_src_factor = 89 PIPE_BLENDFACTOR_SRC_ALPHA; 90 p->blend.rt[0].rgb_dst_factor = p->blend.rt[0].alpha_dst_factor = 91 PIPE_BLENDFACTOR_INV_SRC_ALPHA; 92 93 p->rasterizer.cull_face = PIPE_FACE_NONE; 94 p->rasterizer.gl_rasterization_rules = 1; 95 p->rasterizer.depth_clip = 1; 96 97 p->sampler.wrap_s = p->sampler.wrap_t = p->sampler.wrap_r = 98 PIPE_TEX_WRAP_CLAMP_TO_EDGE; 99 100 p->sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 101 p->sampler.min_img_filter = p->sampler.mag_img_filter = 102 PIPE_TEX_FILTER_LINEAR; 103 p->sampler.normalized_coords = 1; 104 105 p->sampler_point.wrap_s = p->sampler_point.wrap_t = 106 p->sampler_point.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 107 p->sampler_point.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 108 p->sampler_point.min_img_filter = p->sampler_point.mag_img_filter = 109 PIPE_TEX_FILTER_NEAREST; 110 p->sampler_point.normalized_coords = 1; 111 112 p->velem[0].src_offset = 0; 113 p->velem[0].instance_divisor = 0; 114 p->velem[0].vertex_buffer_index = 0; 115 p->velem[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; 116 p->velem[1].src_offset = 1 * 4 * sizeof(float); 117 p->velem[1].instance_divisor = 0; 118 p->velem[1].vertex_buffer_index = 0; 119 p->velem[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; 120 121 if (!p->screen->is_format_supported(p->screen, 122 PIPE_FORMAT_R32G32B32A32_FLOAT, 123 PIPE_BUFFER, 1, 124 PIPE_BIND_VERTEX_BUFFER)) 125 pp_debug("Vertex buf format fail\n"); 126 127 128 { 129 const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, 130 TGSI_SEMANTIC_GENERIC 131 }; 132 const uint semantic_indexes[] = { 0, 0 }; 133 p->passvs = util_make_vertex_passthrough_shader(p->pipe, 2, 134 semantic_names, 135 semantic_indexes); 136 } 137 138 p->framebuffer.nr_cbufs = 1; 139 140 p->surf.usage = PIPE_BIND_RENDER_TARGET; 141 p->surf.format = PIPE_FORMAT_B8G8R8A8_UNORM; 142 143 p->pipe->set_sample_mask(p->pipe, ~0); 144 145 return p; 146 } 147
