0,0 → 1,173 |
#include <stdio.h> |
#include <stdlib.h> |
#include <config.h> |
#include "pixman-private.h" |
#include "pixman.h" |
|
#define FALSE 0 |
#define TRUE 1 |
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/* Randomly decide between 32 and 16 bit |
* |
* Allocate bits with random width, stride and height |
* |
* Then make up some random offset (dx, dy) |
* |
* Then make an image with those values. |
* |
* Do this for both source and destination |
* |
* Composite them together using OVER. |
* |
* The bits in the source and the destination should have |
* recognizable colors so that the result can be verified. |
* |
* Ie., walk the bits and verify that they have been composited. |
*/ |
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static int |
get_rand (int bound) |
{ |
return rand () % bound; |
} |
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static pixman_image_t * |
make_image (int width, int height, pixman_bool_t src, int *rx, int *ry) |
{ |
pixman_format_code_t format; |
pixman_image_t *image; |
pixman_region32_t region; |
uint8_t *bits; |
int stride; |
int bpp; |
int dx, dy; |
int i, j; |
|
if (src) |
format = PIXMAN_a8r8g8b8; |
else |
format = PIXMAN_r5g6b5; |
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bpp = PIXMAN_FORMAT_BPP (format) / 8; |
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stride = width + get_rand (width); |
stride += (stride & 1); /* Make it an even number */ |
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bits = malloc (height * stride * bpp); |
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for (j = 0; j < height; ++j) |
{ |
for (i = 0; i < width; ++i) |
{ |
uint8_t *pixel = bits + (stride * j + i) * bpp; |
|
if (src) |
*(uint32_t *)pixel = 0x7f00007f; |
else |
*(uint16_t *)pixel = 0xf100; |
} |
} |
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dx = dy = 0; |
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dx = get_rand (500); |
dy = get_rand (500); |
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if (!src) |
{ |
/* Now simulate the bogus X server translations */ |
bits -= (dy * stride + dx) * bpp; |
} |
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image = pixman_image_create_bits ( |
format, width, height, (uint32_t *)bits, stride * bpp); |
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if (!src) |
{ |
/* And add the bogus clip region */ |
pixman_region32_init_rect (®ion, dx, dy, dx + width, dy + height); |
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pixman_image_set_clip_region32 (image, ®ion); |
} |
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pixman_image_set_source_clipping (image, TRUE); |
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if (src) |
{ |
pixman_transform_t trans; |
|
pixman_transform_init_identity (&trans); |
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pixman_transform_translate (&trans, |
NULL, |
- pixman_int_to_fixed (width / 2), |
- pixman_int_to_fixed (height / 2)); |
|
pixman_transform_scale (&trans, |
NULL, |
pixman_double_to_fixed (0.5), |
pixman_double_to_fixed (0.5)); |
|
pixman_transform_translate (&trans, |
NULL, |
pixman_int_to_fixed (width / 2), |
pixman_int_to_fixed (height / 2)); |
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pixman_image_set_transform (image, &trans); |
pixman_image_set_filter (image, PIXMAN_FILTER_BILINEAR, NULL, 0); |
pixman_image_set_repeat (image, PIXMAN_REPEAT_PAD); |
} |
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if (!src) |
{ |
*rx = dx; |
*ry = dy; |
} |
else |
{ |
*rx = *ry = 0; |
} |
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return image; |
} |
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int |
main () |
{ |
pixman_image_t *src, *dest; |
int src_x, src_y, dest_x, dest_y; |
int i, j; |
int width = get_rand (499) + 1; |
int height = get_rand (499) + 1; |
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src = make_image (width, height, TRUE, &src_x, &src_y); |
dest = make_image (width, height, FALSE, &dest_x, &dest_y); |
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pixman_image_composite ( |
PIXMAN_OP_OVER, src, NULL, dest, |
src_x, src_y, |
-1, -1, |
dest_x, dest_y, |
width, height); |
|
for (i = 0; i < height; ++i) |
{ |
for (j = 0; j < width; ++j) |
{ |
uint8_t *bits = (uint8_t *)dest->bits.bits; |
int bpp = PIXMAN_FORMAT_BPP (dest->bits.format) / 8; |
int stride = dest->bits.rowstride * 4; |
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uint8_t *pixel = |
bits + (i + dest_y) * stride + (j + dest_x) * bpp; |
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if (*(uint16_t *)pixel != 0x788f) |
{ |
printf ("bad pixel %x\n", *(uint16_t *)pixel); |
assert (*(uint16_t *)pixel == 0x788f); |
} |
} |
} |
|
return 0; |
} |