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Rev | Author | Line No. | Line |
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5563 | 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 | |||
12 | #include "util/u_debug.h" /* debug_dump_surface_bmp() */ |
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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 | #include |
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19 | |||
20 | enum pipe_format formats[] = { |
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21 | PIPE_FORMAT_RGBA8888_UNORM, |
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22 | PIPE_FORMAT_BGRA8888_UNORM, |
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23 | PIPE_FORMAT_NONE |
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24 | }; |
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25 | |||
26 | static const int WIDTH = 300; |
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27 | static const int HEIGHT = 300; |
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28 | |||
29 | static struct pipe_screen *screen = NULL; |
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30 | static struct pipe_context *ctx = NULL; |
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31 | static struct pipe_resource *rttex = NULL; |
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32 | static struct pipe_resource *samptex = NULL; |
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33 | static struct pipe_surface *surf = NULL; |
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34 | static struct pipe_sampler_view *sv = NULL; |
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35 | static void *sampler = NULL; |
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36 | static void *window = NULL; |
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37 | |||
38 | struct vertex { |
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39 | float position[4]; |
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40 | float color[4]; |
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41 | }; |
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42 | |||
43 | static struct vertex vertices[] = |
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44 | { |
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45 | { { 0.9, -0.9, 0.0, 1.0 }, |
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46 | { 1, 0, 0, 1 } }, |
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47 | |||
48 | { { 0.9, 0.9, 0.0, 1.0 }, |
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49 | { 1, 1, 0, 1 } }, |
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50 | |||
51 | { {-0.9, 0.9, 0.0, 1.0 }, |
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52 | { 0, 1, 0, 1 } }, |
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53 | |||
54 | { {-0.9, -0.9, 0.0, 1.0 }, |
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55 | { 0, 0, 0, 1 } }, |
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56 | }; |
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57 | |||
58 | |||
59 | |||
60 | |||
61 | static void set_viewport( float x, float y, |
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62 | float width, float height, |
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63 | float near, float far) |
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64 | { |
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65 | float z = far; |
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66 | float half_width = (float)width / 2.0f; |
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67 | float half_height = (float)height / 2.0f; |
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68 | float half_depth = ((float)far - (float)near) / 2.0f; |
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69 | struct pipe_viewport_state vp; |
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70 | |||
71 | vp.scale[0] = half_width; |
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72 | vp.scale[1] = half_height; |
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73 | vp.scale[2] = half_depth; |
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74 | vp.scale[3] = 1.0f; |
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75 | |||
76 | vp.translate[0] = half_width + x; |
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77 | vp.translate[1] = half_height + y; |
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78 | vp.translate[2] = half_depth + z; |
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79 | vp.translate[3] = 0.0f; |
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80 | |||
81 | ctx->set_viewport_states( ctx, 0, 1, &vp ); |
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82 | } |
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83 | |||
84 | static void set_vertices( void ) |
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85 | { |
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86 | struct pipe_vertex_element ve[2]; |
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87 | struct pipe_vertex_buffer vbuf; |
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88 | void *handle; |
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89 | |||
90 | memset(ve, 0, sizeof ve); |
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91 | |||
92 | ve[0].src_offset = Offset(struct vertex, position); |
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93 | ve[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; |
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94 | ve[1].src_offset = Offset(struct vertex, color); |
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95 | ve[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; |
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96 | |||
97 | handle = ctx->create_vertex_elements_state(ctx, 2, ve); |
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98 | ctx->bind_vertex_elements_state(ctx, handle); |
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99 | |||
100 | memset(&vbuf, 0, sizeof vbuf); |
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101 | |||
102 | vbuf.stride = sizeof( struct vertex ); |
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103 | vbuf.buffer_offset = 0; |
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104 | vbuf.buffer = pipe_buffer_create_with_data(ctx, |
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105 | PIPE_BIND_VERTEX_BUFFER, |
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106 | PIPE_USAGE_STATIC, |
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107 | sizeof(vertices), |
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108 | vertices); |
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109 | |||
110 | ctx->set_vertex_buffers(ctx, 0, 1, &vbuf); |
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111 | } |
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112 | |||
113 | static void set_vertex_shader( void ) |
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114 | { |
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115 | void *handle; |
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116 | const char *text = |
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117 | "VERT\n" |
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118 | "DCL IN[0]\n" |
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119 | "DCL IN[1]\n" |
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120 | "DCL OUT[0], POSITION\n" |
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121 | "DCL OUT[1], GENERIC[0]\n" |
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122 | " 0: MOV OUT[1], IN[1]\n" |
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123 | " 1: MOV OUT[0], IN[0]\n" |
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124 | " 2: END\n"; |
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125 | |||
126 | handle = graw_parse_vertex_shader(ctx, text); |
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127 | ctx->bind_vs_state(ctx, handle); |
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128 | } |
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129 | |||
130 | static void set_fragment_shader( void ) |
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131 | { |
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132 | void *handle; |
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133 | const char *text = |
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134 | "FRAG\n" |
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135 | "DCL IN[0], GENERIC[0], PERSPECTIVE\n" |
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136 | "DCL OUT[0], COLOR\n" |
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137 | "DCL TEMP[0]\n" |
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138 | "DCL SAMP[0]\n" |
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139 | "DCL RES[0], 2D, FLOAT\n" |
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140 | " 0: SAMPLE TEMP[0], IN[0], RES[0], SAMP[0]\n" |
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141 | " 1: MOV OUT[0], TEMP[0]\n" |
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142 | " 2: END\n"; |
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143 | |||
144 | handle = graw_parse_fragment_shader(ctx, text); |
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145 | ctx->bind_fs_state(ctx, handle); |
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146 | } |
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147 | |||
148 | |||
149 | static void draw( void ) |
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150 | { |
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151 | union pipe_color_union clear_color = { {.5,.5,.5,1} }; |
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152 | |||
153 | ctx->clear(ctx, PIPE_CLEAR_COLOR, &clear_color, 0, 0); |
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154 | util_draw_arrays(ctx, PIPE_PRIM_QUADS, 0, 4); |
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155 | ctx->flush(ctx, NULL, 0); |
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156 | |||
157 | graw_save_surface_to_file(ctx, surf, NULL); |
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158 | |||
159 | screen->flush_frontbuffer(screen, rttex, 0, 0, window); |
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160 | } |
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161 | |||
162 | #define SIZE 16 |
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163 | |||
164 | static void init_tex( void ) |
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165 | { |
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166 | struct pipe_sampler_view sv_template; |
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167 | struct pipe_sampler_state sampler_desc; |
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168 | struct pipe_resource templat; |
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169 | struct pipe_box box; |
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170 | ubyte tex2d[SIZE][SIZE][4]; |
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171 | int s, t; |
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172 | |||
173 | #if (SIZE != 2) |
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174 | for (s = 0; s < SIZE; s++) { |
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175 | for (t = 0; t < SIZE; t++) { |
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176 | if (0) { |
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177 | int x = (s ^ t) & 1; |
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178 | tex2d[t][s][0] = (x) ? 0 : 63; |
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179 | tex2d[t][s][1] = (x) ? 0 : 128; |
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180 | tex2d[t][s][2] = 0; |
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181 | tex2d[t][s][3] = 0xff; |
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182 | } |
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183 | else { |
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184 | int x = ((s ^ t) >> 2) & 1; |
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185 | tex2d[t][s][0] = s*255/(SIZE-1); |
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186 | tex2d[t][s][1] = t*255/(SIZE-1); |
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187 | tex2d[t][s][2] = (x) ? 0 : 128; |
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188 | tex2d[t][s][3] = 0xff; |
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189 | } |
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190 | } |
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191 | } |
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192 | #else |
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193 | tex2d[0][0][0] = 0; |
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194 | tex2d[0][0][1] = 255; |
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195 | tex2d[0][0][2] = 255; |
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196 | tex2d[0][0][3] = 0; |
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197 | |||
198 | tex2d[0][1][0] = 0; |
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199 | tex2d[0][1][1] = 0; |
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200 | tex2d[0][1][2] = 255; |
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201 | tex2d[0][1][3] = 255; |
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202 | |||
203 | tex2d[1][0][0] = 255; |
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204 | tex2d[1][0][1] = 255; |
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205 | tex2d[1][0][2] = 0; |
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206 | tex2d[1][0][3] = 255; |
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207 | |||
208 | tex2d[1][1][0] = 255; |
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209 | tex2d[1][1][1] = 0; |
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210 | tex2d[1][1][2] = 0; |
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211 | tex2d[1][1][3] = 255; |
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212 | #endif |
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213 | |||
214 | templat.target = PIPE_TEXTURE_2D; |
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215 | templat.format = PIPE_FORMAT_B8G8R8A8_UNORM; |
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216 | templat.width0 = SIZE; |
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217 | templat.height0 = SIZE; |
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218 | templat.depth0 = 1; |
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219 | templat.last_level = 0; |
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220 | templat.nr_samples = 1; |
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221 | templat.bind = PIPE_BIND_SAMPLER_VIEW; |
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222 | |||
223 | |||
224 | samptex = screen->resource_create(screen, |
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225 | &templat); |
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226 | if (samptex == NULL) |
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227 | exit(4); |
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228 | |||
229 | u_box_2d(0,0,SIZE,SIZE, &box); |
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230 | |||
231 | ctx->transfer_inline_write(ctx, |
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232 | samptex, |
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233 | 0, |
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234 | PIPE_TRANSFER_WRITE, |
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235 | &box, |
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236 | tex2d, |
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237 | sizeof tex2d[0], |
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238 | sizeof tex2d); |
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239 | |||
240 | /* Possibly read back & compare against original data: |
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241 | */ |
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242 | if (0) |
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243 | { |
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244 | struct pipe_transfer *t; |
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245 | uint32_t *ptr; |
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246 | ptr = pipe_transfer_map(ctx, samptex, |
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247 | 0, 0, /* level, layer */ |
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248 | PIPE_TRANSFER_READ, |
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249 | 0, 0, SIZE, SIZE, &t); /* x, y, width, height */ |
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250 | |||
251 | if (memcmp(ptr, tex2d, sizeof tex2d) != 0) { |
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252 | assert(0); |
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253 | exit(9); |
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254 | } |
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255 | |||
256 | ctx->transfer_unmap(ctx, t); |
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257 | } |
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258 | |||
259 | memset(&sv_template, 0, sizeof sv_template); |
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260 | sv_template.format = samptex->format; |
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261 | sv_template.texture = samptex; |
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262 | sv_template.swizzle_r = 0; |
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263 | sv_template.swizzle_g = 1; |
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264 | sv_template.swizzle_b = 2; |
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265 | sv_template.swizzle_a = 3; |
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266 | sv = ctx->create_sampler_view(ctx, samptex, &sv_template); |
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267 | if (sv == NULL) |
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268 | exit(5); |
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269 | |||
270 | ctx->set_fragment_sampler_views(ctx, 1, &sv); |
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271 | |||
272 | |||
273 | memset(&sampler_desc, 0, sizeof sampler_desc); |
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274 | sampler_desc.wrap_s = PIPE_TEX_WRAP_REPEAT; |
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275 | sampler_desc.wrap_t = PIPE_TEX_WRAP_REPEAT; |
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276 | sampler_desc.wrap_r = PIPE_TEX_WRAP_REPEAT; |
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277 | sampler_desc.min_img_filter = PIPE_TEX_FILTER_NEAREST; |
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278 | sampler_desc.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; |
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279 | sampler_desc.mag_img_filter = PIPE_TEX_FILTER_NEAREST; |
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280 | sampler_desc.compare_mode = PIPE_TEX_COMPARE_NONE; |
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281 | sampler_desc.compare_func = 0; |
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282 | sampler_desc.normalized_coords = 1; |
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283 | sampler_desc.max_anisotropy = 0; |
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284 | |||
285 | sampler = ctx->create_sampler_state(ctx, &sampler_desc); |
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286 | if (sampler == NULL) |
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287 | exit(6); |
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288 | |||
289 | ctx->bind_fragment_sampler_states(ctx, 1, &sampler); |
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290 | |||
291 | } |
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292 | |||
293 | static void init( void ) |
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294 | { |
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295 | struct pipe_framebuffer_state fb; |
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296 | struct pipe_resource templat; |
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297 | struct pipe_surface surf_tmpl; |
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298 | int i; |
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299 | |||
300 | /* It's hard to say whether window or screen should be created |
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301 | * first. Different environments would prefer one or the other. |
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302 | * |
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303 | * Also, no easy way of querying supported formats if the screen |
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304 | * cannot be created first. |
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305 | */ |
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306 | for (i = 0; formats[i] != PIPE_FORMAT_NONE; i++) { |
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307 | screen = graw_create_window_and_screen(0, 0, 300, 300, |
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308 | formats[i], |
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309 | &window); |
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310 | if (window && screen) |
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311 | break; |
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312 | } |
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313 | if (!screen || !window) { |
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314 | fprintf(stderr, "Unable to create window\n"); |
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315 | exit(1); |
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316 | } |
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317 | |||
318 | ctx = screen->context_create(screen, NULL); |
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319 | if (ctx == NULL) |
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320 | exit(3); |
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321 | |||
322 | templat.target = PIPE_TEXTURE_2D; |
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323 | templat.format = formats[i]; |
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324 | templat.width0 = WIDTH; |
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325 | templat.height0 = HEIGHT; |
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326 | templat.depth0 = 1; |
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327 | templat.array_size = 1; |
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328 | templat.last_level = 0; |
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329 | templat.nr_samples = 1; |
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330 | templat.bind = (PIPE_BIND_RENDER_TARGET | |
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331 | PIPE_BIND_DISPLAY_TARGET); |
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332 | |||
333 | rttex = screen->resource_create(screen, |
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334 | &templat); |
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335 | if (rttex == NULL) |
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336 | exit(4); |
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337 | |||
338 | surf_tmpl.format = templat.format; |
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339 | surf_tmpl.u.tex.level = 0; |
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340 | surf_tmpl.u.tex.first_layer = 0; |
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341 | surf_tmpl.u.tex.last_layer = 0; |
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342 | surf = ctx->create_surface(ctx, rttex, &surf_tmpl); |
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343 | if (surf == NULL) |
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344 | exit(5); |
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345 | |||
346 | memset(&fb, 0, sizeof fb); |
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347 | fb.nr_cbufs = 1; |
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348 | fb.width = WIDTH; |
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349 | fb.height = HEIGHT; |
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350 | fb.cbufs[0] = surf; |
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351 | |||
352 | ctx->set_framebuffer_state(ctx, &fb); |
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353 | |||
354 | { |
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355 | struct pipe_blend_state blend; |
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356 | void *handle; |
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357 | memset(&blend, 0, sizeof blend); |
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358 | blend.rt[0].colormask = PIPE_MASK_RGBA; |
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359 | handle = ctx->create_blend_state(ctx, &blend); |
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360 | ctx->bind_blend_state(ctx, handle); |
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361 | } |
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362 | |||
363 | { |
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364 | struct pipe_depth_stencil_alpha_state depthstencil; |
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365 | void *handle; |
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366 | memset(&depthstencil, 0, sizeof depthstencil); |
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367 | handle = ctx->create_depth_stencil_alpha_state(ctx, &depthstencil); |
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368 | ctx->bind_depth_stencil_alpha_state(ctx, handle); |
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369 | } |
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370 | |||
371 | { |
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372 | struct pipe_rasterizer_state rasterizer; |
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373 | void *handle; |
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374 | memset(&rasterizer, 0, sizeof rasterizer); |
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375 | rasterizer.cull_face = PIPE_FACE_NONE; |
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376 | rasterizer.half_pixel_center = 1; |
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377 | rasterizer.bottom_edge_rule = 1; |
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378 | rasterizer.depth_clip = 1; |
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379 | handle = ctx->create_rasterizer_state(ctx, &rasterizer); |
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380 | ctx->bind_rasterizer_state(ctx, handle); |
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381 | } |
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382 | |||
383 | set_viewport(0, 0, WIDTH, HEIGHT, 30, 1000); |
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384 | |||
385 | init_tex(); |
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386 | |||
387 | set_vertices(); |
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388 | set_vertex_shader(); |
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389 | set_fragment_shader(); |
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390 | } |
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391 | |||
392 | static void args(int argc, char *argv[]) |
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393 | { |
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394 | int i; |
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395 | |||
396 | for (i = 1; i < argc;) { |
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397 | if (graw_parse_args(&i, argc, argv)) { |
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398 | continue; |
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399 | } |
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400 | exit(1); |
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401 | } |
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402 | } |
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403 | |||
404 | |||
405 | int main( int argc, char *argv[] ) |
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406 | { |
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407 | args(argc, argv); |
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408 | init(); |
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409 | |||
410 | graw_set_display_func( draw ); |
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411 | graw_main_loop(); |
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412 | return 0; |
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413 | }>>> |