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tests: Add a test which writes all pixel formats

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This adds a test similar to the test-read-texture-formats test but
that updates data on a 1x1 pixel RGBA texture instead. On GLES2 this
should end up testing all of the convesion code because in that case
GL only supports reading back RGBA data.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
This commit is contained in:
Neil Roberts 2012-03-01 00:40:34 +00:00
parent 70dfbdd5e3
commit b85f2e907a
3 changed files with 193 additions and 0 deletions
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1
tests/conform/Makefile.am
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@ -49,6 +49,7 @@ test_sources = \
test-texture-3d.c \
test-sparse-pipeline.c \
test-read-texture-formats.c \
test-write-texture-formats.c \
$(NULL)
test_conformance_SOURCES = $(common_sources) $(test_sources)

1
tests/conform/test-conform-main.c
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@ -82,6 +82,7 @@ main (int argc, char **argv)
UNPORTED_TEST (test_cogl_texture_get_set_data);
UNPORTED_TEST (test_cogl_atlas_migration);
ADD_TEST (test_cogl_read_texture_formats, 0);
ADD_TEST (test_cogl_write_texture_formats, 0);
UNPORTED_TEST (test_cogl_vertex_buffer_contiguous);
UNPORTED_TEST (test_cogl_vertex_buffer_interleved);

191
tests/conform/test-write-texture-formats.c Normal file
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@ -0,0 +1,191 @@
#include <cogl/cogl2-experimental.h>
#include <stdarg.h>
#include "test-utils.h"
/*
* This tests writing data to an RGBA texture in all of the available
* pixel formats
*/
static void
test_color (CoglTexture *texture,
guint32 expected_pixel)
{
guint32 received_pixel;
char *received_value_str;
char *expected_value_str;
cogl_texture_get_data (texture,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
4, /* rowstride */
(guint8 *) &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_write_byte (CoglContext *context,
CoglPixelFormat format,
guint8 byte,
guint32 expected_pixel)
{
CoglTexture *texture = test_utils_create_color_texture (context, 0);
cogl_texture_set_region (texture,
0, 0, /* src_x / src_y */
0, 0, /* dst_x / dst_y */
1, 1, /* dst_w / dst_h */
1, 1, /* width / height */
format,
1, /* rowstride */
&byte);
test_color (texture, expected_pixel);
cogl_object_unref (texture);
}
static void
test_write_short (CoglContext *context,
CoglPixelFormat format,
guint16 value,
guint32 expected_pixel)
{
CoglTexture *texture = test_utils_create_color_texture (context, 0);
cogl_texture_set_region (texture,
0, 0, /* src_x / src_y */
0, 0, /* dst_x / dst_y */
1, 1, /* dst_w / dst_h */
1, 1, /* width / height */
format,
2, /* rowstride */
(guint8 *) &value);
test_color (texture, expected_pixel);
cogl_object_unref (texture);
}
static void
test_write_bytes (CoglContext *context,
CoglPixelFormat format,
guint32 value,
guint32 expected_pixel)
{
CoglTexture *texture = test_utils_create_color_texture (context, 0);
value = GUINT32_TO_BE (value);
cogl_texture_set_region (texture,
0, 0, /* src_x / src_y */
0, 0, /* dst_x / dst_y */
1, 1, /* dst_w / dst_h */
1, 1, /* width / height */
format,
4, /* rowstride */
(guint8 *) &value);
test_color (texture, expected_pixel);
cogl_object_unref (texture);
}
static void
test_write_int (CoglContext *context,
CoglPixelFormat format,
guint32 expected_pixel,
...)
{
va_list ap;
int bits;
guint32 tex_data = 0;
int bits_sum = 0;
CoglTexture *texture = test_utils_create_color_texture (context, 0);
va_start (ap, expected_pixel);
/* Convert the va args into a single 32-bit value */
while ((bits = va_arg (ap, int)) != -1)
{
guint32 value = (va_arg (ap, int) * ((1 << bits) - 1) + 127) / 255;
bits_sum += bits;
tex_data |= value << (32 - bits_sum);
}
va_end (ap);
cogl_texture_set_region (texture,
0, 0, /* src_x / src_y */
0, 0, /* dst_x / dst_y */
1, 1, /* dst_w / dst_h */
1, 1, /* width / height */
format,
4, /* rowstride */
(guint8 *) &tex_data);
test_color (texture, expected_pixel);
cogl_object_unref (texture);
}
void
test_cogl_write_texture_formats (TestUtilsGTestFixture *fixture,
void *data)
{
TestUtilsSharedState *shared_state = data;
CoglContext *ctx = shared_state->ctx;
test_write_byte (ctx, COGL_PIXEL_FORMAT_A_8, 0x34, 0x00000034);
#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_write_byte (ctx, COGL_PIXEL_FORMAT_G_8, 0x34, 0x340000ff);
#endif
test_write_short (ctx, COGL_PIXEL_FORMAT_RGB_565, 0x0843, 0x080819ff);
test_write_short (ctx, COGL_PIXEL_FORMAT_RGBA_4444_PRE, 0x1234, 0x11223344);
test_write_short (ctx, COGL_PIXEL_FORMAT_RGBA_5551_PRE, 0x0887, 0x081019ff);
test_write_bytes (ctx, COGL_PIXEL_FORMAT_RGB_888, 0x123456ff, 0x123456ff);
test_write_bytes (ctx, COGL_PIXEL_FORMAT_BGR_888, 0x563412ff, 0x123456ff);
test_write_bytes (ctx, COGL_PIXEL_FORMAT_RGBA_8888_PRE,
0x12345678, 0x12345678);
test_write_bytes (ctx, COGL_PIXEL_FORMAT_BGRA_8888_PRE,
0x56341278, 0x12345678);
test_write_bytes (ctx, COGL_PIXEL_FORMAT_ARGB_8888_PRE,
0x78123456, 0x12345678);
test_write_bytes (ctx, COGL_PIXEL_FORMAT_ABGR_8888_PRE,
0x78563412, 0x12345678);
test_write_int (ctx, COGL_PIXEL_FORMAT_RGBA_1010102_PRE,
0x123456ff,
10, 0x12, 10, 0x34, 10, 0x56, 2, 0xff,
-1);
test_write_int (ctx, COGL_PIXEL_FORMAT_BGRA_1010102_PRE,
0x123456ff,
10, 0x56, 10, 0x34, 10, 0x12, 2, 0xff,
-1);
test_write_int (ctx, COGL_PIXEL_FORMAT_ARGB_2101010_PRE,
0x123456ff,
2, 0xff, 10, 0x12, 10, 0x34, 10, 0x56,
-1);
test_write_int (ctx, COGL_PIXEL_FORMAT_ABGR_2101010_PRE,
0x123456ff,
2, 0xff, 10, 0x56, 10, 0x34, 10, 0x12,
-1);
if (g_test_verbose ())
g_print ("OK\n");
}