mutter/tests/conform/test-read-texture-formats.c
Robert Bragg af7398788a remove internal_format and redundant error arguments
Texture allocation is now consistently handled lazily such that the
internal format can now be controlled using
cogl_texture_set_components() and cogl_texture_set_premultiplied()
before allocating the texture with cogl_texture_allocate(). This means
that the internal_format arguments to texture constructors are now
redundant and since most of the texture constructors now can't ever fail
the error arguments are also redundant. This now means we no longer
use CoglPixelFormat in the public api for describing the internal format
of textures which had been bad solution originally due to how specific
CoglPixelFormat is which is missleading when we don't support such
explicit control over the internal format.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 99a53c82e9ab0a1e5ee35941bf83dc334b1fbe87)

Note: there are numerous API changes for functions currently marked
as 'unstable' which we don't think are in use by anyone depending on
a stable 1.x api. Compared to the original patch though this avoids
changing the cogl_texture_rectangle_new_with_size() api which we know
is used by Mutter.
2014-01-09 15:49:47 +00:00

201 lines
5.7 KiB
C

#include <cogl/cogl2-experimental.h>
#include <stdarg.h>
#include "test-utils.h"
/*
* This tests reading back an RGBA texture in all of the available
* pixel formats
*/
static const uint8_t tex_data[4] = { 0x12, 0x34, 0x56, 0x78 };
static void
test_read_byte (CoglTexture2D *tex_2d,
CoglPixelFormat format,
uint8_t expected_byte)
{
uint8_t received_byte;
cogl_texture_get_data (tex_2d,
format,
1, /* rowstride */
&received_byte);
g_assert_cmpint (expected_byte, ==, received_byte);
}
static void
test_read_short (CoglTexture2D *tex_2d,
CoglPixelFormat format,
...)
{
va_list ap;
int bits;
uint16_t received_value;
uint16_t expected_value = 0;
char *received_value_str;
char *expected_value_str;
int bits_sum = 0;
cogl_texture_get_data (tex_2d,
format,
2, /* rowstride */
(uint8_t *) &received_value);
va_start (ap, format);
/* Convert the va args into a single 16-bit expected value */
while ((bits = va_arg (ap, int)) != -1)
{
int value = (va_arg (ap, int) * ((1 << bits) - 1) + 128) / 255;
bits_sum += bits;
expected_value |= value << (16 - bits_sum);
}
va_end (ap);
received_value_str = g_strdup_printf ("0x%04x", received_value);
expected_value_str = g_strdup_printf ("0x%04x", expected_value);
g_assert_cmpstr (received_value_str, ==, expected_value_str);
g_free (received_value_str);
g_free (expected_value_str);
}
static void
test_read_888 (CoglTexture2D *tex_2d,
CoglPixelFormat format,
uint32_t expected_pixel)
{
uint8_t pixel[4];
cogl_texture_get_data (tex_2d,
format,
4, /* rowstride */
pixel);
test_utils_compare_pixel (pixel, expected_pixel);
}
static void
test_read_8888 (CoglTexture2D *tex_2d,
CoglPixelFormat format,
uint32_t expected_pixel)
{
uint32_t received_pixel;
char *received_value_str;
char *expected_value_str;
cogl_texture_get_data (tex_2d,
format,
4, /* rowstride */
(uint8_t *) &received_pixel);
received_pixel = GUINT32_FROM_BE (received_pixel);
received_value_str = g_strdup_printf ("0x%08x", received_pixel);
expected_value_str = g_strdup_printf ("0x%08x", expected_pixel);
g_assert_cmpstr (received_value_str, ==, expected_value_str);
g_free (received_value_str);
g_free (expected_value_str);
}
static void
test_read_int (CoglTexture2D *tex_2d,
CoglPixelFormat format,
...)
{
va_list ap;
int bits;
uint32_t received_value;
uint32_t expected_value = 0;
char *received_value_str;
char *expected_value_str;
int bits_sum = 0;
cogl_texture_get_data (tex_2d,
format,
4, /* rowstride */
(uint8_t *) &received_value);
va_start (ap, format);
/* Convert the va args into a single 32-bit expected value */
while ((bits = va_arg (ap, int)) != -1)
{
uint32_t value = (va_arg (ap, int) * ((1 << bits) - 1) + 128) / 255;
bits_sum += bits;
expected_value |= value << (32 - bits_sum);
}
va_end (ap);
received_value_str = g_strdup_printf ("0x%08x", received_value);
expected_value_str = g_strdup_printf ("0x%08x", expected_value);
g_assert_cmpstr (received_value_str, ==, expected_value_str);
g_free (received_value_str);
g_free (expected_value_str);
}
void
test_read_texture_formats (void)
{
CoglTexture2D *tex_2d;
tex_2d = cogl_texture_2d_new_from_data (test_ctx,
1, 1, /* width / height */
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
4, /* rowstride */
tex_data,
NULL);
test_read_byte (tex_2d, COGL_PIXEL_FORMAT_A_8, 0x78);
#if 0
/* I'm not sure what's the right value to put here because Nvidia
and Mesa seem to behave differently so one of them must be
wrong. */
test_read_byte (tex_2d, COGL_PIXEL_FORMAT_G_8, 0x9c);
#endif
test_read_short (tex_2d, COGL_PIXEL_FORMAT_RGB_565,
5, 0x12, 6, 0x34, 5, 0x56,
-1);
test_read_short (tex_2d, COGL_PIXEL_FORMAT_RGBA_4444_PRE,
4, 0x12, 4, 0x34, 4, 0x56, 4, 0x78,
-1);
test_read_short (tex_2d, COGL_PIXEL_FORMAT_RGBA_5551_PRE,
5, 0x12, 5, 0x34, 5, 0x56, 1, 0x78,
-1);
test_read_888 (tex_2d, COGL_PIXEL_FORMAT_RGB_888, 0x123456ff);
test_read_888 (tex_2d, COGL_PIXEL_FORMAT_BGR_888, 0x563412ff);
test_read_8888 (tex_2d, COGL_PIXEL_FORMAT_RGBA_8888_PRE, 0x12345678);
test_read_8888 (tex_2d, COGL_PIXEL_FORMAT_BGRA_8888_PRE, 0x56341278);
test_read_8888 (tex_2d, COGL_PIXEL_FORMAT_ARGB_8888_PRE, 0x78123456);
test_read_8888 (tex_2d, COGL_PIXEL_FORMAT_ABGR_8888_PRE, 0x78563412);
test_read_int (tex_2d, COGL_PIXEL_FORMAT_RGBA_1010102_PRE,
10, 0x12, 10, 0x34, 10, 0x56, 2, 0x78,
-1);
test_read_int (tex_2d, COGL_PIXEL_FORMAT_BGRA_1010102_PRE,
10, 0x56, 10, 0x34, 10, 0x12, 2, 0x78,
-1);
test_read_int (tex_2d, COGL_PIXEL_FORMAT_ARGB_2101010_PRE,
2, 0x78, 10, 0x12, 10, 0x34, 10, 0x56,
-1);
test_read_int (tex_2d, COGL_PIXEL_FORMAT_ABGR_2101010_PRE,
2, 0x78, 10, 0x56, 10, 0x34, 10, 0x12,
-1);
cogl_object_unref (tex_2d);
if (cogl_test_verbose ())
g_print ("OK\n");
}