mirror of
https://github.com/brl/mutter.git
synced 2024-11-24 00:50:42 -05:00
145 lines
4.2 KiB
C
145 lines
4.2 KiB
C
#include <cogl/cogl.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include "test-utils.h"
|
|
|
|
static void
|
|
check_texture (int width, int height, TestUtilsTextureFlags flags)
|
|
{
|
|
CoglTexture *tex;
|
|
uint8_t *data, *p;
|
|
int y, x;
|
|
int rowstride;
|
|
CoglBitmap *bmp;
|
|
|
|
p = data = g_malloc (width * height * 4);
|
|
for (y = 0; y < height; y++)
|
|
for (x = 0; x < width; x++)
|
|
{
|
|
*(p++) = x;
|
|
*(p++) = y;
|
|
*(p++) = 128;
|
|
*(p++) = (x ^ y);
|
|
}
|
|
|
|
bmp = cogl_bitmap_new_for_data (test_ctx,
|
|
width, height,
|
|
COGL_PIXEL_FORMAT_RGBA_8888,
|
|
width * 4,
|
|
data);
|
|
|
|
tex = test_utils_texture_new_from_bitmap (bmp, flags,
|
|
FALSE);
|
|
|
|
/* Replace the bottom right quarter of the data with negated data to
|
|
test set_region */
|
|
rowstride = width * 4;
|
|
p = data + (height / 2) * rowstride + rowstride / 2;
|
|
for (y = 0; y < height / 2; y++)
|
|
{
|
|
for (x = 0; x < width / 2; x++)
|
|
{
|
|
p[0] = ~p[0];
|
|
p[1] = ~p[1];
|
|
p[2] = ~p[2];
|
|
p[3] = ~p[3];
|
|
p += 4;
|
|
}
|
|
p += width * 2;
|
|
}
|
|
cogl_texture_set_region (tex,
|
|
width / 2,
|
|
height / 2,
|
|
width / 2, /* dest x */
|
|
height / 2, /* dest y */
|
|
width / 2, /* region width */
|
|
height / 2, /* region height */
|
|
width, /* src width */
|
|
height, /* src height */
|
|
COGL_PIXEL_FORMAT_RGBA_8888,
|
|
rowstride,
|
|
data);
|
|
|
|
/* Check passing a NULL pointer and a zero rowstride. The texture
|
|
should calculate the needed data size and return it */
|
|
g_assert_cmpint (cogl_texture_get_data (tex, COGL_PIXEL_FORMAT_ANY, 0, NULL),
|
|
==,
|
|
width * height * 4);
|
|
|
|
/* Try first receiving the data as RGB. This should cause a
|
|
* conversion */
|
|
memset (data, 0, width * height * 4);
|
|
|
|
cogl_texture_get_data (tex, COGL_PIXEL_FORMAT_RGB_888,
|
|
width * 3, data);
|
|
|
|
p = data;
|
|
|
|
for (y = 0; y < height; y++)
|
|
for (x = 0; x < width; x++)
|
|
{
|
|
if (x >= width / 2 && y >= height / 2)
|
|
{
|
|
g_assert_cmpint (p[0], ==, ~x & 0xff);
|
|
g_assert_cmpint (p[1], ==, ~y & 0xff);
|
|
g_assert_cmpint (p[2], ==, ~128 & 0xff);
|
|
}
|
|
else
|
|
{
|
|
g_assert_cmpint (p[0], ==, x & 0xff);
|
|
g_assert_cmpint (p[1], ==, y & 0xff);
|
|
g_assert_cmpint (p[2], ==, 128);
|
|
}
|
|
p += 3;
|
|
}
|
|
|
|
/* Now try receiving the data as RGBA. This should not cause a
|
|
* conversion and no unpremultiplication because we explicitly set
|
|
* the internal format when we created the texture */
|
|
memset (data, 0, width * height * 4);
|
|
|
|
cogl_texture_get_data (tex, COGL_PIXEL_FORMAT_RGBA_8888,
|
|
width * 4, data);
|
|
|
|
p = data;
|
|
|
|
for (y = 0; y < height; y++)
|
|
for (x = 0; x < width; x++)
|
|
{
|
|
if (x >= width / 2 && y >= height / 2)
|
|
{
|
|
g_assert_cmpint (p[0], ==, ~x & 0xff);
|
|
g_assert_cmpint (p[1], ==, ~y & 0xff);
|
|
g_assert_cmpint (p[2], ==, ~128 & 0xff);
|
|
g_assert_cmpint (p[3], ==, ~(x ^ y) & 0xff);
|
|
}
|
|
else
|
|
{
|
|
g_assert_cmpint (p[0], ==, x & 0xff);
|
|
g_assert_cmpint (p[1], ==, y & 0xff);
|
|
g_assert_cmpint (p[2], ==, 128);
|
|
g_assert_cmpint (p[3], ==, (x ^ y) & 0xff);
|
|
}
|
|
p += 4;
|
|
}
|
|
|
|
cogl_object_unref (tex);
|
|
g_free (data);
|
|
}
|
|
|
|
void
|
|
test_texture_get_set_data (void)
|
|
{
|
|
/* First try without atlasing */
|
|
check_texture (256, 256, TEST_UTILS_TEXTURE_NO_ATLAS);
|
|
/* Try again with atlasing. This should end up testing the atlas
|
|
backend and the sub texture backend */
|
|
check_texture (256, 256, 0);
|
|
/* Try with a really big texture in the hope that it will end up
|
|
sliced. */
|
|
check_texture (4, 5128, TEST_UTILS_TEXTURE_NO_ATLAS);
|
|
/* And in the other direction. */
|
|
check_texture (5128, 4, TEST_UTILS_TEXTURE_NO_ATLAS);
|
|
}
|