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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4358 | Serge | 1 | /* Test sRGB texturing. |
| 2 | */ |
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| 3 | |||
| 4 | #include "graw_util.h" |
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| 5 | |||
| 6 | |||
| 7 | static const int WIDTH = 600; |
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| 8 | static const int HEIGHT = 300; |
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| 9 | |||
| 10 | static struct graw_info info; |
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| 11 | |||
| 12 | static struct pipe_resource *texture; |
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| 13 | static struct pipe_sampler_view *linear_sv, *srgb_sv; |
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| 14 | |||
| 15 | |||
| 16 | struct vertex { |
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| 17 | float position[4]; |
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| 18 | float color[4]; |
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| 19 | }; |
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| 20 | |||
| 21 | static struct vertex vertices1[] = |
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| 22 | { |
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| 23 | { { -0.1, -0.9, 0.0, 1.0 }, |
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| 24 | { 1, 1, 0, 1 } }, |
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| 25 | |||
| 26 | { { -0.1, 0.9, 0.0, 1.0 }, |
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| 27 | { 1, 0, 0, 1 } }, |
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| 28 | |||
| 29 | { {-0.9, 0.9, 0.0, 1.0 }, |
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| 30 | { 0, 0, 0, 1 } }, |
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| 31 | |||
| 32 | { {-0.9, -0.9, 0.0, 1.0 }, |
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| 33 | { 0, 1, 0, 1 } }, |
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| 34 | }; |
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| 35 | |||
| 36 | |||
| 37 | static struct vertex vertices2[] = |
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| 38 | { |
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| 39 | { { 0.9, -0.9, 0.0, 1.0 }, |
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| 40 | { 1, 1, 0, 1 } }, |
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| 41 | |||
| 42 | { { 0.9, 0.9, 0.0, 1.0 }, |
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| 43 | { 1, 0, 0, 1 } }, |
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| 44 | |||
| 45 | { { 0.1, 0.9, 0.0, 1.0 }, |
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| 46 | { 0, 0, 0, 1 } }, |
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| 47 | |||
| 48 | { { 0.1, -0.9, 0.0, 1.0 }, |
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| 49 | { 0, 1, 0, 1 } }, |
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| 50 | }; |
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| 51 | |||
| 52 | |||
| 53 | |||
| 54 | |||
| 55 | static void |
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| 56 | set_vertices(struct vertex *verts, unsigned num_verts) |
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| 57 | { |
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| 58 | struct pipe_vertex_element ve[2]; |
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| 59 | struct pipe_vertex_buffer vbuf; |
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| 60 | void *handle; |
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| 61 | |||
| 62 | memset(ve, 0, sizeof ve); |
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| 63 | |||
| 64 | ve[0].src_offset = Offset(struct vertex, position); |
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| 65 | ve[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; |
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| 66 | ve[1].src_offset = Offset(struct vertex, color); |
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| 67 | ve[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; |
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| 68 | |||
| 69 | handle = info.ctx->create_vertex_elements_state(info.ctx, 2, ve); |
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| 70 | info.ctx->bind_vertex_elements_state(info.ctx, handle); |
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| 71 | |||
| 72 | memset(&vbuf, 0, sizeof vbuf); |
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| 73 | |||
| 74 | vbuf.stride = sizeof(struct vertex); |
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| 75 | vbuf.buffer_offset = 0; |
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| 76 | vbuf.buffer = pipe_buffer_create_with_data(info.ctx, |
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| 77 | PIPE_BIND_VERTEX_BUFFER, |
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| 78 | PIPE_USAGE_STATIC, |
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| 79 | num_verts * sizeof(struct vertex), |
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| 80 | verts); |
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| 81 | |||
| 82 | info.ctx->set_vertex_buffers(info.ctx, 0, 1, &vbuf); |
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| 83 | } |
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| 84 | |||
| 85 | static void set_vertex_shader( void ) |
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| 86 | { |
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| 87 | void *handle; |
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| 88 | const char *text = |
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| 89 | "VERT\n" |
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| 90 | "DCL IN[0]\n" |
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| 91 | "DCL IN[1]\n" |
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| 92 | "DCL OUT[0], POSITION\n" |
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| 93 | "DCL OUT[1], GENERIC[0]\n" |
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| 94 | " 0: MOV OUT[1], IN[1]\n" |
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| 95 | " 1: MOV OUT[0], IN[0]\n" |
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| 96 | " 2: END\n"; |
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| 97 | |||
| 98 | handle = graw_parse_vertex_shader(info.ctx, text); |
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| 99 | info.ctx->bind_vs_state(info.ctx, handle); |
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| 100 | } |
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| 101 | |||
| 102 | static void set_fragment_shader( void ) |
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| 103 | { |
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| 104 | void *handle; |
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| 105 | const char *text = |
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| 106 | "FRAG\n" |
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| 107 | "DCL IN[0], GENERIC[0], PERSPECTIVE\n" |
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| 108 | "DCL OUT[0], COLOR\n" |
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| 109 | "DCL TEMP[0]\n" |
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| 110 | "DCL SAMP[0]\n" |
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| 111 | " 0: TXP TEMP[0], IN[0], SAMP[0], 2D\n" |
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| 112 | " 1: MOV OUT[0], TEMP[0]\n" |
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| 113 | " 2: END\n"; |
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| 114 | |||
| 115 | handle = graw_parse_fragment_shader(info.ctx, text); |
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| 116 | info.ctx->bind_fs_state(info.ctx, handle); |
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| 117 | } |
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| 118 | |||
| 119 | |||
| 120 | static void draw( void ) |
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| 121 | { |
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| 122 | union pipe_color_union clear_color; |
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| 123 | |||
| 124 | clear_color.f[0] = 0.5; |
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| 125 | clear_color.f[1] = 0.5; |
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| 126 | clear_color.f[2] = 0.5; |
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| 127 | clear_color.f[3] = 1.0; |
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| 128 | |||
| 129 | info.ctx->clear(info.ctx, PIPE_CLEAR_COLOR, &clear_color, 0, 0); |
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| 130 | |||
| 131 | info.ctx->set_fragment_sampler_views(info.ctx, 1, &linear_sv); |
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| 132 | set_vertices(vertices1, 4); |
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| 133 | util_draw_arrays(info.ctx, PIPE_PRIM_QUADS, 0, 4); |
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| 134 | |||
| 135 | info.ctx->set_fragment_sampler_views(info.ctx, 1, &srgb_sv); |
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| 136 | set_vertices(vertices2, 4); |
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| 137 | util_draw_arrays(info.ctx, PIPE_PRIM_QUADS, 0, 4); |
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| 138 | |||
| 139 | info.ctx->flush(info.ctx, NULL, 0); |
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| 140 | |||
| 141 | graw_util_flush_front(&info); |
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| 142 | } |
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| 143 | |||
| 144 | |||
| 145 | static void init_tex( void ) |
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| 146 | { |
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| 147 | #define SIZE 64 |
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| 148 | ubyte tex2d[SIZE][SIZE][4]; |
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| 149 | int s, t; |
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| 150 | |||
| 151 | for (s = 0; s < SIZE; s++) { |
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| 152 | for (t = 0; t < SIZE; t++) { |
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| 153 | tex2d[t][s][0] = 0; |
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| 154 | tex2d[t][s][1] = s * 255 / SIZE; |
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| 155 | tex2d[t][s][2] = t * 255 / SIZE; |
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| 156 | tex2d[t][s][3] = 255; |
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| 157 | } |
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| 158 | } |
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| 159 | |||
| 160 | texture = graw_util_create_tex2d(&info, SIZE, SIZE, |
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| 161 | PIPE_FORMAT_B8G8R8A8_UNORM, tex2d); |
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| 162 | |||
| 163 | { |
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| 164 | void *sampler; |
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| 165 | sampler = graw_util_create_simple_sampler(&info, |
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| 166 | PIPE_TEX_WRAP_REPEAT, |
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| 167 | PIPE_TEX_FILTER_NEAREST); |
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| 168 | info.ctx->bind_fragment_sampler_states(info.ctx, 1, &sampler); |
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| 169 | } |
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| 170 | |||
| 171 | /* linear sampler view */ |
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| 172 | { |
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| 173 | struct pipe_sampler_view sv_temp; |
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| 174 | memset(&sv_temp, 0, sizeof sv_temp); |
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| 175 | sv_temp.format = PIPE_FORMAT_B8G8R8A8_UNORM; |
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| 176 | sv_temp.texture = texture; |
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| 177 | sv_temp.swizzle_r = PIPE_SWIZZLE_RED; |
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| 178 | sv_temp.swizzle_g = PIPE_SWIZZLE_GREEN; |
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| 179 | sv_temp.swizzle_b = PIPE_SWIZZLE_BLUE; |
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| 180 | sv_temp.swizzle_a = PIPE_SWIZZLE_ALPHA; |
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| 181 | linear_sv = info.ctx->create_sampler_view(info.ctx, texture, &sv_temp); |
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| 182 | if (linear_sv == NULL) |
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| 183 | exit(0); |
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| 184 | } |
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| 185 | |||
| 186 | /* srgb sampler view */ |
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| 187 | { |
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| 188 | struct pipe_sampler_view sv_temp; |
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| 189 | memset(&sv_temp, 0, sizeof sv_temp); |
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| 190 | sv_temp.format = PIPE_FORMAT_B8G8R8A8_SRGB; |
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| 191 | sv_temp.texture = texture; |
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| 192 | sv_temp.swizzle_r = PIPE_SWIZZLE_RED; |
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| 193 | sv_temp.swizzle_g = PIPE_SWIZZLE_GREEN; |
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| 194 | sv_temp.swizzle_b = PIPE_SWIZZLE_BLUE; |
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| 195 | sv_temp.swizzle_a = PIPE_SWIZZLE_ALPHA; |
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| 196 | srgb_sv = info.ctx->create_sampler_view(info.ctx, texture, &sv_temp); |
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| 197 | if (srgb_sv == NULL) |
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| 198 | exit(0); |
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| 199 | } |
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| 200 | #undef SIZE |
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| 201 | } |
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| 202 | |||
| 203 | static void init( void ) |
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| 204 | { |
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| 205 | if (!graw_util_create_window(&info, WIDTH, HEIGHT, 1, FALSE)) |
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| 206 | exit(1); |
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| 207 | |||
| 208 | graw_util_default_state(&info, FALSE); |
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| 209 | |||
| 210 | graw_util_viewport(&info, 0, 0, WIDTH, HEIGHT, 30, 10000); |
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| 211 | |||
| 212 | init_tex(); |
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| 213 | |||
| 214 | set_vertex_shader(); |
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| 215 | set_fragment_shader(); |
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| 216 | } |
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| 217 | |||
| 218 | |||
| 219 | int main( int argc, char *argv[] ) |
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| 220 | { |
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| 221 | init(); |
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| 222 | |||
| 223 | graw_set_display_func( draw ); |
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| 224 | graw_main_loop(); |
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| 225 | return 0; |
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| 226 | } |