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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | #include |
| 2 | #include |
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| 3 | #include |
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| 4 | #include "pixman-private.h" |
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| 5 | #include "pixman.h" |
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| 6 | |||
| 7 | #define FALSE 0 |
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| 8 | #define TRUE 1 |
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| 9 | |||
| 10 | /* Randomly decide between 32 and 16 bit |
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| 11 | * |
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| 12 | * Allocate bits with random width, stride and height |
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| 13 | * |
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| 14 | * Then make up some random offset (dx, dy) |
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| 15 | * |
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| 16 | * Then make an image with those values. |
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| 17 | * |
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| 18 | * Do this for both source and destination |
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| 19 | * |
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| 20 | * Composite them together using OVER. |
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| 21 | * |
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| 22 | * The bits in the source and the destination should have |
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| 23 | * recognizable colors so that the result can be verified. |
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| 24 | * |
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| 25 | * Ie., walk the bits and verify that they have been composited. |
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| 26 | */ |
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| 27 | |||
| 28 | static int |
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| 29 | get_rand (int bound) |
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| 30 | { |
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| 31 | return rand () % bound; |
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| 32 | } |
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| 33 | |||
| 34 | static pixman_image_t * |
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| 35 | make_image (int width, int height, pixman_bool_t src, int *rx, int *ry) |
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| 36 | { |
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| 37 | pixman_format_code_t format; |
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| 38 | pixman_image_t *image; |
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| 39 | pixman_region32_t region; |
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| 40 | uint8_t *bits; |
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| 41 | int stride; |
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| 42 | int bpp; |
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| 43 | int dx, dy; |
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| 44 | int i, j; |
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| 45 | |||
| 46 | if (src) |
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| 47 | format = PIXMAN_a8r8g8b8; |
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| 48 | else |
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| 49 | format = PIXMAN_r5g6b5; |
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| 50 | |||
| 51 | bpp = PIXMAN_FORMAT_BPP (format) / 8; |
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| 52 | |||
| 53 | stride = width + get_rand (width); |
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| 54 | stride += (stride & 1); /* Make it an even number */ |
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| 55 | |||
| 56 | bits = malloc (height * stride * bpp); |
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| 57 | |||
| 58 | for (j = 0; j < height; ++j) |
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| 59 | { |
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| 60 | for (i = 0; i < width; ++i) |
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| 61 | { |
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| 62 | uint8_t *pixel = bits + (stride * j + i) * bpp; |
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| 63 | |||
| 64 | if (src) |
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| 65 | *(uint32_t *)pixel = 0x7f00007f; |
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| 66 | else |
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| 67 | *(uint16_t *)pixel = 0xf100; |
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| 68 | } |
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| 69 | } |
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| 70 | |||
| 71 | dx = dy = 0; |
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| 72 | |||
| 73 | dx = get_rand (500); |
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| 74 | dy = get_rand (500); |
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| 75 | |||
| 76 | if (!src) |
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| 77 | { |
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| 78 | /* Now simulate the bogus X server translations */ |
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| 79 | bits -= (dy * stride + dx) * bpp; |
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| 80 | } |
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| 81 | |||
| 82 | image = pixman_image_create_bits ( |
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| 83 | format, width, height, (uint32_t *)bits, stride * bpp); |
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| 84 | |||
| 85 | if (!src) |
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| 86 | { |
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| 87 | /* And add the bogus clip region */ |
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| 88 | pixman_region32_init_rect (®ion, dx, dy, dx + width, dy + height); |
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| 89 | |||
| 90 | pixman_image_set_clip_region32 (image, ®ion); |
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| 91 | } |
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| 92 | |||
| 93 | pixman_image_set_source_clipping (image, TRUE); |
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| 94 | |||
| 95 | if (src) |
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| 96 | { |
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| 97 | pixman_transform_t trans; |
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| 98 | |||
| 99 | pixman_transform_init_identity (&trans); |
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| 100 | |||
| 101 | pixman_transform_translate (&trans, |
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| 102 | NULL, |
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| 103 | - pixman_int_to_fixed (width / 2), |
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| 104 | - pixman_int_to_fixed (height / 2)); |
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| 105 | |||
| 106 | pixman_transform_scale (&trans, |
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| 107 | NULL, |
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| 108 | pixman_double_to_fixed (0.5), |
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| 109 | pixman_double_to_fixed (0.5)); |
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| 110 | |||
| 111 | pixman_transform_translate (&trans, |
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| 112 | NULL, |
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| 113 | pixman_int_to_fixed (width / 2), |
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| 114 | pixman_int_to_fixed (height / 2)); |
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| 115 | |||
| 116 | pixman_image_set_transform (image, &trans); |
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| 117 | pixman_image_set_filter (image, PIXMAN_FILTER_BILINEAR, NULL, 0); |
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| 118 | pixman_image_set_repeat (image, PIXMAN_REPEAT_PAD); |
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| 119 | } |
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| 120 | |||
| 121 | if (!src) |
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| 122 | { |
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| 123 | *rx = dx; |
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| 124 | *ry = dy; |
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| 125 | } |
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| 126 | else |
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| 127 | { |
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| 128 | *rx = *ry = 0; |
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| 129 | } |
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| 130 | |||
| 131 | return image; |
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| 132 | } |
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| 133 | |||
| 134 | int |
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| 135 | main () |
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| 136 | { |
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| 137 | pixman_image_t *src, *dest; |
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| 138 | int src_x, src_y, dest_x, dest_y; |
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| 139 | int i, j; |
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| 140 | int width = get_rand (499) + 1; |
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| 141 | int height = get_rand (499) + 1; |
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| 142 | |||
| 143 | src = make_image (width, height, TRUE, &src_x, &src_y); |
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| 144 | dest = make_image (width, height, FALSE, &dest_x, &dest_y); |
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| 145 | |||
| 146 | pixman_image_composite ( |
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| 147 | PIXMAN_OP_OVER, src, NULL, dest, |
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| 148 | src_x, src_y, |
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| 149 | -1, -1, |
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| 150 | dest_x, dest_y, |
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| 151 | width, height); |
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| 152 | |||
| 153 | for (i = 0; i < height; ++i) |
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| 154 | { |
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| 155 | for (j = 0; j < width; ++j) |
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| 156 | { |
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| 157 | uint8_t *bits = (uint8_t *)dest->bits.bits; |
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| 158 | int bpp = PIXMAN_FORMAT_BPP (dest->bits.format) / 8; |
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| 159 | int stride = dest->bits.rowstride * 4; |
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| 160 | |||
| 161 | uint8_t *pixel = |
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| 162 | bits + (i + dest_y) * stride + (j + dest_x) * bpp; |
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| 163 | |||
| 164 | if (*(uint16_t *)pixel != 0x788f) |
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| 165 | { |
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| 166 | printf ("bad pixel %x\n", *(uint16_t *)pixel); |
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| 167 | assert (*(uint16_t *)pixel == 0x788f); |
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| 168 | } |
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| 169 | } |
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| 170 | } |
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| 171 | |||
| 172 | return 0; |
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| 173 | } |