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Rev | Author | Line No. | Line |
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4358 | Serge | 1 | /* Display a cleared blue window. This demo has no dependencies on |
2 | * any utility code, just the graw interface and gallium. |
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3 | */ |
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4 | |||
5 | #include "state_tracker/graw.h" |
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6 | #include "pipe/p_screen.h" |
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7 | #include "pipe/p_context.h" |
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8 | #include "pipe/p_shader_tokens.h" |
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9 | #include "pipe/p_state.h" |
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10 | #include "pipe/p_defines.h" |
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11 | #include |
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12 | |||
13 | #include "util/u_inlines.h" |
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14 | #include "util/u_memory.h" /* Offset() */ |
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15 | #include "util/u_draw_quad.h" |
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16 | #include "util/u_box.h" |
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17 | |||
18 | static const char *filename = NULL; |
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19 | unsigned show_fps = 0; |
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20 | |||
21 | |||
22 | static void usage(char *name) |
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23 | { |
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24 | fprintf(stderr, "usage: %s [ options ] shader_filename\n", name); |
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25 | #ifndef _WIN32 |
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26 | fprintf(stderr, "\n" ); |
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27 | fprintf(stderr, "options:\n"); |
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28 | fprintf(stderr, " -fps show frames per second\n"); |
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29 | #endif |
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30 | } |
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31 | |||
32 | |||
33 | enum pipe_format formats[] = { |
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34 | PIPE_FORMAT_RGBA8888_UNORM, |
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35 | PIPE_FORMAT_BGRA8888_UNORM, |
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36 | PIPE_FORMAT_NONE |
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37 | }; |
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38 | |||
39 | static const int WIDTH = 250; |
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40 | static const int HEIGHT = 250; |
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41 | |||
42 | static struct pipe_screen *screen = NULL; |
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43 | static struct pipe_context *ctx = NULL; |
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44 | static struct pipe_resource *rttex = NULL; |
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45 | static struct pipe_surface *surf = NULL; |
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46 | static struct pipe_sampler_view *sv = NULL; |
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47 | static void *sampler = NULL; |
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48 | static void *window = NULL; |
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49 | static struct pipe_resource *samptex = NULL; |
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50 | |||
51 | struct vertex { |
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52 | float position[4]; |
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53 | float color[4]; |
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54 | float texcoord[4]; |
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55 | }; |
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56 | |||
57 | /* Vertex data matches progs/fp/fp-tri.c, but flipped in Y dimension |
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58 | * so that the final images are the same. |
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59 | */ |
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60 | static struct vertex vertices[] = |
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61 | { |
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62 | { { 0.9, 0.9, 0.0, 1.0 }, |
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63 | { 0, 0, 1, 1 }, |
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64 | { 1, 1, 0, 1 } }, |
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65 | |||
66 | { { 0.9, -0.9, 0.0, 1.0 }, |
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67 | { 1, 0, 0, 1 }, |
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68 | { 1, -1, 0, 1 } }, |
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69 | |||
70 | { {-0.9, 0.0, 0.0, 1.0 }, |
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71 | { 0, 1, 0, 1 }, |
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72 | { -1, 0, 0, 1 } }, |
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73 | }; |
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74 | |||
75 | static float constants1[] = |
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76 | { 0.4, 0, 0, 1, |
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77 | 1, 1, 1, 1, |
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78 | 2, 2, 2, 2, |
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79 | 4, 8, 16, 32, |
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80 | |||
81 | 3, 0, 0, 0, |
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82 | 0, .5, 0, 0, |
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83 | 1, 0, 0, 1, |
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84 | 0, 0, 0, 1, |
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85 | |||
86 | 1, 0, 0, 0.5, |
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87 | 0, 1, 0, 0.5, |
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88 | 0, 0, 1, 0, |
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89 | 0, 0, 0, 1, |
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90 | }; |
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91 | |||
92 | |||
93 | static float constants2[] = |
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94 | { 1, 0, 0, 1, |
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95 | 0, 1, 0, 1, |
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96 | 0, 0, 1, 1, |
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97 | 0, 0, 0, 0, |
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98 | |||
99 | 1, 1, 0, 1, |
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100 | 1, .5, 0, 1, |
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101 | 1, 0, 0, 1, |
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102 | 0, 0, 0, 1, |
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103 | |||
104 | 1, 0, 0, 0.5, |
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105 | 0, 1, 0, 0.5, |
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106 | 0, 0, 1, 0, |
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107 | 0, 0, 0, 1, |
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108 | }; |
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109 | |||
110 | static void init_fs_constbuf( void ) |
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111 | { |
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112 | struct pipe_constant_buffer cb1; |
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113 | struct pipe_constant_buffer cb2; |
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114 | |||
115 | memset(&cb1, 0, sizeof cb1); |
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116 | cb1.buffer_size = sizeof constants1; |
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117 | cb1.user_buffer = constants1; |
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118 | |||
119 | ctx->set_constant_buffer(ctx, |
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120 | PIPE_SHADER_FRAGMENT, 0, |
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121 | &cb1); |
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122 | |||
123 | memset(&cb2, 0, sizeof cb2); |
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124 | cb2.buffer_size = sizeof constants2; |
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125 | cb2.user_buffer = constants2; |
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126 | |||
127 | ctx->set_constant_buffer(ctx, |
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128 | PIPE_SHADER_FRAGMENT, 1, |
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129 | &cb2); |
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130 | } |
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131 | |||
132 | |||
133 | static void set_viewport( float x, float y, |
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134 | float width, float height, |
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135 | float near, float far) |
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136 | { |
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137 | float z = far; |
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138 | float half_width = (float)width / 2.0f; |
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139 | float half_height = (float)height / 2.0f; |
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140 | float half_depth = ((float)far - (float)near) / 2.0f; |
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141 | struct pipe_viewport_state vp; |
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142 | |||
143 | vp.scale[0] = half_width; |
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144 | vp.scale[1] = half_height; |
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145 | vp.scale[2] = half_depth; |
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146 | vp.scale[3] = 1.0f; |
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147 | |||
148 | vp.translate[0] = half_width + x; |
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149 | vp.translate[1] = half_height + y; |
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150 | vp.translate[2] = half_depth + z; |
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151 | vp.translate[3] = 0.0f; |
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152 | |||
153 | ctx->set_viewport_states( ctx, 0, 1, &vp ); |
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154 | } |
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155 | |||
156 | static void set_vertices( void ) |
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157 | { |
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158 | struct pipe_vertex_element ve[3]; |
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159 | struct pipe_vertex_buffer vbuf; |
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160 | void *handle; |
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161 | |||
162 | memset(ve, 0, sizeof ve); |
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163 | |||
164 | ve[0].src_offset = Offset(struct vertex, position); |
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165 | ve[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; |
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166 | ve[1].src_offset = Offset(struct vertex, color); |
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167 | ve[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; |
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168 | ve[2].src_offset = Offset(struct vertex, texcoord); |
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169 | ve[2].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; |
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170 | |||
171 | handle = ctx->create_vertex_elements_state(ctx, 3, ve); |
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172 | ctx->bind_vertex_elements_state(ctx, handle); |
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173 | |||
174 | memset(&vbuf, 0, sizeof vbuf); |
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175 | |||
176 | vbuf.stride = sizeof( struct vertex ); |
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177 | vbuf.buffer_offset = 0; |
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178 | vbuf.buffer = pipe_buffer_create_with_data(ctx, |
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179 | PIPE_BIND_VERTEX_BUFFER, |
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180 | PIPE_USAGE_STATIC, |
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181 | sizeof(vertices), |
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182 | vertices); |
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183 | |||
184 | ctx->set_vertex_buffers(ctx, 0, 1, &vbuf); |
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185 | } |
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186 | |||
187 | static void set_vertex_shader( void ) |
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188 | { |
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189 | void *handle; |
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190 | const char *text = |
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191 | "VERT\n" |
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192 | "DCL IN[0]\n" |
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193 | "DCL IN[1]\n" |
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194 | "DCL IN[2]\n" |
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195 | "DCL OUT[0], POSITION\n" |
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196 | "DCL OUT[1], COLOR[0]\n" |
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197 | "DCL OUT[2], GENERIC[0]\n" |
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198 | " MOV OUT[0], IN[0]\n" |
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199 | " MOV OUT[1], IN[1]\n" |
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200 | " MOV OUT[2], IN[2]\n" |
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201 | " END\n"; |
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202 | |||
203 | handle = graw_parse_vertex_shader(ctx, text); |
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204 | ctx->bind_vs_state(ctx, handle); |
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205 | } |
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206 | |||
207 | static void set_fragment_shader( const char *filename ) |
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208 | { |
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209 | FILE *f; |
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210 | char buf[50000]; |
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211 | void *handle; |
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212 | int sz; |
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213 | |||
214 | if ((f = fopen(filename, "r")) == NULL) { |
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215 | fprintf(stderr, "Couldn't open %s\n", filename); |
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216 | exit(1); |
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217 | } |
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218 | |||
219 | sz = fread(buf, 1, sizeof(buf), f); |
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220 | if (!feof(f)) { |
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221 | printf("file too long\n"); |
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222 | exit(1); |
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223 | } |
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224 | printf("%.*s\n", sz, buf); |
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225 | buf[sz] = 0; |
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226 | |||
227 | handle = graw_parse_fragment_shader(ctx, buf); |
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228 | ctx->bind_fs_state(ctx, handle); |
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229 | fclose(f); |
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230 | } |
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231 | |||
232 | |||
233 | static void draw( void ) |
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234 | { |
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235 | union pipe_color_union clear_color = { {.1,.3,.5,0} }; |
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236 | |||
237 | ctx->clear(ctx, PIPE_CLEAR_COLOR, &clear_color, 0, 0); |
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238 | util_draw_arrays(ctx, PIPE_PRIM_TRIANGLES, 0, 3); |
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239 | ctx->flush(ctx, NULL, 0); |
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240 | |||
241 | graw_save_surface_to_file(ctx, surf, NULL); |
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242 | |||
243 | screen->flush_frontbuffer(screen, rttex, 0, 0, window); |
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244 | } |
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245 | |||
246 | #define SIZE 16 |
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247 | |||
248 | static void init_tex( void ) |
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249 | { |
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250 | struct pipe_sampler_view sv_template; |
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251 | struct pipe_sampler_state sampler_desc; |
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252 | struct pipe_resource templat; |
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253 | struct pipe_box box; |
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254 | ubyte tex2d[SIZE][SIZE][4]; |
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255 | int s, t; |
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256 | |||
257 | #if (SIZE != 2) |
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258 | for (s = 0; s < SIZE; s++) { |
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259 | for (t = 0; t < SIZE; t++) { |
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260 | if (0) { |
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261 | int x = (s ^ t) & 1; |
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262 | tex2d[t][s][0] = (x) ? 0 : 63; |
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263 | tex2d[t][s][1] = (x) ? 0 : 128; |
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264 | tex2d[t][s][2] = 0; |
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265 | tex2d[t][s][3] = 0xff; |
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266 | } |
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267 | else { |
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268 | int x = ((s ^ t) >> 2) & 1; |
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269 | tex2d[t][s][0] = s*255/(SIZE-1); |
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270 | tex2d[t][s][1] = t*255/(SIZE-1); |
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271 | tex2d[t][s][2] = (x) ? 0 : 128; |
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272 | tex2d[t][s][3] = 0xff; |
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273 | } |
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274 | } |
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275 | } |
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276 | #else |
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277 | tex2d[0][0][0] = 0; |
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278 | tex2d[0][0][1] = 255; |
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279 | tex2d[0][0][2] = 255; |
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280 | tex2d[0][0][3] = 0; |
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281 | |||
282 | tex2d[0][1][0] = 0; |
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283 | tex2d[0][1][1] = 0; |
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284 | tex2d[0][1][2] = 255; |
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285 | tex2d[0][1][3] = 255; |
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286 | |||
287 | tex2d[1][0][0] = 255; |
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288 | tex2d[1][0][1] = 255; |
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289 | tex2d[1][0][2] = 0; |
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290 | tex2d[1][0][3] = 255; |
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291 | |||
292 | tex2d[1][1][0] = 255; |
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293 | tex2d[1][1][1] = 0; |
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294 | tex2d[1][1][2] = 0; |
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295 | tex2d[1][1][3] = 255; |
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296 | #endif |
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297 | |||
298 | templat.target = PIPE_TEXTURE_2D; |
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299 | templat.format = PIPE_FORMAT_B8G8R8A8_UNORM; |
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300 | templat.width0 = SIZE; |
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301 | templat.height0 = SIZE; |
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302 | templat.depth0 = 1; |
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303 | templat.array_size = 1; |
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304 | templat.last_level = 0; |
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305 | templat.nr_samples = 1; |
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306 | templat.bind = PIPE_BIND_SAMPLER_VIEW; |
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307 | |||
308 | |||
309 | samptex = screen->resource_create(screen, |
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310 | &templat); |
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311 | if (samptex == NULL) |
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312 | exit(4); |
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313 | |||
314 | u_box_2d(0,0,SIZE,SIZE, &box); |
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315 | |||
316 | ctx->transfer_inline_write(ctx, |
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317 | samptex, |
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318 | 0, |
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319 | PIPE_TRANSFER_WRITE, |
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320 | &box, |
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321 | tex2d, |
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322 | sizeof tex2d[0], |
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323 | sizeof tex2d); |
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324 | |||
325 | /* Possibly read back & compare against original data: |
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326 | */ |
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327 | if (0) |
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328 | { |
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329 | struct pipe_transfer *t; |
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330 | uint32_t *ptr; |
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331 | ptr = pipe_transfer_map(ctx, samptex, |
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332 | 0, 0, /* level, layer */ |
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333 | PIPE_TRANSFER_READ, |
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334 | 0, 0, SIZE, SIZE, &t); /* x, y, width, height */ |
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335 | |||
336 | if (memcmp(ptr, tex2d, sizeof tex2d) != 0) { |
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337 | assert(0); |
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338 | exit(9); |
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339 | } |
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340 | |||
341 | ctx->transfer_unmap(ctx, t); |
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342 | } |
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343 | |||
344 | memset(&sv_template, 0, sizeof sv_template); |
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345 | sv_template.format = samptex->format; |
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346 | sv_template.texture = samptex; |
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347 | sv_template.swizzle_r = 0; |
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348 | sv_template.swizzle_g = 1; |
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349 | sv_template.swizzle_b = 2; |
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350 | sv_template.swizzle_a = 3; |
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351 | sv = ctx->create_sampler_view(ctx, samptex, &sv_template); |
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352 | if (sv == NULL) |
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353 | exit(5); |
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354 | |||
355 | ctx->set_fragment_sampler_views(ctx, 1, &sv); |
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356 | |||
357 | |||
358 | memset(&sampler_desc, 0, sizeof sampler_desc); |
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359 | sampler_desc.wrap_s = PIPE_TEX_WRAP_REPEAT; |
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360 | sampler_desc.wrap_t = PIPE_TEX_WRAP_REPEAT; |
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361 | sampler_desc.wrap_r = PIPE_TEX_WRAP_REPEAT; |
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362 | sampler_desc.min_img_filter = PIPE_TEX_FILTER_NEAREST; |
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363 | sampler_desc.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; |
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364 | sampler_desc.mag_img_filter = PIPE_TEX_FILTER_NEAREST; |
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365 | sampler_desc.compare_mode = PIPE_TEX_COMPARE_NONE; |
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366 | sampler_desc.compare_func = 0; |
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367 | sampler_desc.normalized_coords = 1; |
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368 | sampler_desc.max_anisotropy = 0; |
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369 | |||
370 | sampler = ctx->create_sampler_state(ctx, &sampler_desc); |
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371 | if (sampler == NULL) |
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372 | exit(6); |
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373 | |||
374 | ctx->bind_fragment_sampler_states(ctx, 1, &sampler); |
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375 | |||
376 | } |
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377 | |||
378 | static void init( void ) |
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379 | { |
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380 | struct pipe_framebuffer_state fb; |
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381 | struct pipe_resource templat; |
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382 | struct pipe_surface surf_tmpl; |
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383 | int i; |
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384 | |||
385 | /* It's hard to say whether window or screen should be created |
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386 | * first. Different environments would prefer one or the other. |
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387 | * |
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388 | * Also, no easy way of querying supported formats if the screen |
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389 | * cannot be created first. |
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390 | */ |
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391 | for (i = 0; formats[i] != PIPE_FORMAT_NONE; i++) { |
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392 | screen = graw_create_window_and_screen(0, 0, 300, 300, |
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393 | formats[i], |
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394 | &window); |
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395 | if (window && screen) |
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396 | break; |
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397 | } |
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398 | if (!screen || !window) { |
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399 | fprintf(stderr, "Unable to create window\n"); |
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400 | exit(1); |
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401 | } |
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402 | |||
403 | ctx = screen->context_create(screen, NULL); |
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404 | if (ctx == NULL) |
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405 | exit(3); |
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406 | |||
407 | templat.target = PIPE_TEXTURE_2D; |
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408 | templat.format = formats[i]; |
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409 | templat.width0 = WIDTH; |
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410 | templat.height0 = HEIGHT; |
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411 | templat.depth0 = 1; |
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412 | templat.array_size = 1; |
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413 | templat.last_level = 0; |
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414 | templat.nr_samples = 1; |
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415 | templat.bind = (PIPE_BIND_RENDER_TARGET | |
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416 | PIPE_BIND_DISPLAY_TARGET); |
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417 | |||
418 | rttex = screen->resource_create(screen, |
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419 | &templat); |
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420 | if (rttex == NULL) |
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421 | exit(4); |
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422 | |||
423 | surf_tmpl.format = templat.format; |
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424 | surf_tmpl.u.tex.level = 0; |
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425 | surf_tmpl.u.tex.first_layer = 0; |
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426 | surf_tmpl.u.tex.last_layer = 0; |
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427 | surf = ctx->create_surface(ctx, rttex, &surf_tmpl); |
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428 | if (surf == NULL) |
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429 | exit(5); |
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430 | |||
431 | memset(&fb, 0, sizeof fb); |
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432 | fb.nr_cbufs = 1; |
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433 | fb.width = WIDTH; |
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434 | fb.height = HEIGHT; |
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435 | fb.cbufs[0] = surf; |
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436 | |||
437 | ctx->set_framebuffer_state(ctx, &fb); |
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438 | |||
439 | { |
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440 | struct pipe_blend_state blend; |
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441 | void *handle; |
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442 | memset(&blend, 0, sizeof blend); |
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443 | blend.rt[0].colormask = PIPE_MASK_RGBA; |
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444 | handle = ctx->create_blend_state(ctx, &blend); |
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445 | ctx->bind_blend_state(ctx, handle); |
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446 | } |
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447 | |||
448 | { |
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449 | struct pipe_depth_stencil_alpha_state depthstencil; |
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450 | void *handle; |
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451 | memset(&depthstencil, 0, sizeof depthstencil); |
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452 | handle = ctx->create_depth_stencil_alpha_state(ctx, &depthstencil); |
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453 | ctx->bind_depth_stencil_alpha_state(ctx, handle); |
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454 | } |
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455 | |||
456 | { |
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457 | struct pipe_rasterizer_state rasterizer; |
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458 | void *handle; |
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459 | memset(&rasterizer, 0, sizeof rasterizer); |
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460 | rasterizer.cull_face = PIPE_FACE_NONE; |
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461 | rasterizer.half_pixel_center = 1; |
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462 | rasterizer.bottom_edge_rule = 1; |
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463 | rasterizer.depth_clip = 1; |
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464 | handle = ctx->create_rasterizer_state(ctx, &rasterizer); |
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465 | ctx->bind_rasterizer_state(ctx, handle); |
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466 | } |
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467 | |||
468 | set_viewport(0, 0, WIDTH, HEIGHT, 30, 1000); |
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469 | |||
470 | init_tex(); |
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471 | init_fs_constbuf(); |
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472 | |||
473 | set_vertices(); |
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474 | set_vertex_shader(); |
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475 | set_fragment_shader(filename); |
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476 | } |
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477 | |||
478 | static void args(int argc, char *argv[]) |
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479 | { |
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480 | int i; |
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481 | |||
482 | for (i = 1; i < argc;) { |
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483 | if (graw_parse_args(&i, argc, argv)) { |
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484 | continue; |
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485 | } |
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486 | if (strcmp(argv[i], "-fps") == 0) { |
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487 | show_fps = 1; |
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488 | i++; |
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489 | } |
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490 | else if (i == argc - 1) { |
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491 | filename = argv[i]; |
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492 | i++; |
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493 | } |
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494 | else { |
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495 | usage(argv[0]); |
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496 | exit(1); |
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497 | } |
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498 | } |
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499 | |||
500 | if (!filename) { |
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501 | usage(argv[0]); |
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502 | exit(1); |
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503 | } |
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504 | } |
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505 | |||
506 | int main( int argc, char *argv[] ) |
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507 | { |
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508 | args(argc,argv); |
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509 | init(); |
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510 | |||
511 | graw_set_display_func( draw ); |
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512 | graw_main_loop(); |
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513 | return 0; |
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514 | }>>> |