tests/cogl: Migrate write texture formats test
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2555>
This commit is contained in:
Jonas Ådahl
@ -19,6 +19,7 @@ cogl_tests = [
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[ 'test-primitive', [] ],
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[ 'test-sparse-pipeline', [] ],
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[ 'test-read-texture-formats', ['gl', 'gl3'] ],
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[ 'test-write-texture-formats', [] ],
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]
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cogl_test_conformance_includes = [
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188
src/tests/cogl/conform/test-write-texture-formats.c
Normal file
188
src/tests/cogl/conform/test-write-texture-formats.c
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@ -0,0 +1,188 @@
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#include <cogl/cogl.h>
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#include <stdarg.h>
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#include "tests/cogl-test-utils.h"
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/*
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* This tests writing data to an RGBA texture in all of the available
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* pixel formats
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*/
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static void
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test_color (CoglTexture *texture,
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uint32_t expected_pixel)
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{
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uint8_t received_pixel[4];
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cogl_texture_get_data (texture,
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COGL_PIXEL_FORMAT_RGBA_8888_PRE,
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4, /* rowstride */
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received_pixel);
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test_utils_compare_pixel_and_alpha (received_pixel, expected_pixel);
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}
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static void
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test_write_byte (CoglContext *context,
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CoglPixelFormat format,
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uint8_t byte,
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uint32_t expected_pixel)
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{
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CoglTexture *texture = test_utils_create_color_texture (context, 0);
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cogl_texture_set_region (texture,
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0, 0, /* src_x / src_y */
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0, 0, /* dst_x / dst_y */
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1, 1, /* dst_w / dst_h */
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1, 1, /* width / height */
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format,
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1, /* rowstride */
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&byte);
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test_color (texture, expected_pixel);
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cogl_object_unref (texture);
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}
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static void
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test_write_short (CoglContext *context,
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CoglPixelFormat format,
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uint16_t value,
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uint32_t expected_pixel)
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{
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CoglTexture *texture = test_utils_create_color_texture (context, 0);
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cogl_texture_set_region (texture,
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0, 0, /* src_x / src_y */
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0, 0, /* dst_x / dst_y */
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1, 1, /* dst_w / dst_h */
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1, 1, /* width / height */
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format,
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2, /* rowstride */
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(uint8_t *) &value);
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test_color (texture, expected_pixel);
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cogl_object_unref (texture);
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}
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static void
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test_write_bytes (CoglContext *context,
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CoglPixelFormat format,
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uint32_t value,
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uint32_t expected_pixel)
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{
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CoglTexture *texture = test_utils_create_color_texture (context, 0);
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value = GUINT32_TO_BE (value);
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cogl_texture_set_region (texture,
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0, 0, /* src_x / src_y */
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0, 0, /* dst_x / dst_y */
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1, 1, /* dst_w / dst_h */
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1, 1, /* width / height */
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format,
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4, /* rowstride */
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(uint8_t *) &value);
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test_color (texture, expected_pixel);
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cogl_object_unref (texture);
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}
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static void
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test_write_int (CoglContext *context,
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CoglPixelFormat format,
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uint32_t expected_pixel,
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...)
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{
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va_list ap;
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int bits;
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uint32_t tex_data = 0;
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int bits_sum = 0;
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CoglTexture *texture = test_utils_create_color_texture (context, 0);
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va_start (ap, expected_pixel);
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/* Convert the va args into a single 32-bit value */
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while ((bits = va_arg (ap, int)) != -1)
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{
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uint32_t value = (va_arg (ap, int) * ((1 << bits) - 1) + 127) / 255;
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bits_sum += bits;
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tex_data |= value << (32 - bits_sum);
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}
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va_end (ap);
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cogl_texture_set_region (texture,
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0, 0, /* src_x / src_y */
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0, 0, /* dst_x / dst_y */
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1, 1, /* dst_w / dst_h */
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1, 1, /* width / height */
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format,
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4, /* rowstride */
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(uint8_t *) &tex_data);
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test_color (texture, expected_pixel);
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cogl_object_unref (texture);
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}
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static void
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test_write_texture_formats (void)
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{
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test_write_byte (test_ctx, COGL_PIXEL_FORMAT_A_8, 0x34, 0x00000034);
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#if 0
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/* I'm not sure what's the right value to put here because Nvidia
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and Mesa seem to behave differently so one of them must be
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wrong. */
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test_write_byte (test_ctx, COGL_PIXEL_FORMAT_G_8, 0x34, 0x340000ff);
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#endif
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/* We should always be able to read from an RG buffer regardless of
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* whether RG textures are supported because Cogl will do the
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* conversion for us */
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test_write_bytes (test_ctx, COGL_PIXEL_FORMAT_RG_88, 0x123456ff, 0x123400ff);
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test_write_short (test_ctx, COGL_PIXEL_FORMAT_RGB_565, 0x0843, 0x080819ff);
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test_write_short (test_ctx, COGL_PIXEL_FORMAT_RGBA_4444_PRE, 0x1234, 0x11223344);
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test_write_short (test_ctx, COGL_PIXEL_FORMAT_RGBA_5551_PRE, 0x0887, 0x081019ff);
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test_write_bytes (test_ctx, COGL_PIXEL_FORMAT_RGB_888, 0x123456ff, 0x123456ff);
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test_write_bytes (test_ctx, COGL_PIXEL_FORMAT_BGR_888, 0x563412ff, 0x123456ff);
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test_write_bytes (test_ctx, COGL_PIXEL_FORMAT_RGBA_8888_PRE,
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0x12345678, 0x12345678);
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test_write_bytes (test_ctx, COGL_PIXEL_FORMAT_BGRA_8888_PRE,
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0x56341278, 0x12345678);
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test_write_bytes (test_ctx, COGL_PIXEL_FORMAT_ARGB_8888_PRE,
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0x78123456, 0x12345678);
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test_write_bytes (test_ctx, COGL_PIXEL_FORMAT_ABGR_8888_PRE,
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0x78563412, 0x12345678);
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test_write_int (test_ctx, COGL_PIXEL_FORMAT_RGBA_1010102_PRE,
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0x123456ff,
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10, 0x12, 10, 0x34, 10, 0x56, 2, 0xff,
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-1);
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test_write_int (test_ctx, COGL_PIXEL_FORMAT_BGRA_1010102_PRE,
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0x123456ff,
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10, 0x56, 10, 0x34, 10, 0x12, 2, 0xff,
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-1);
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test_write_int (test_ctx, COGL_PIXEL_FORMAT_ARGB_2101010_PRE,
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0x123456ff,
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2, 0xff, 10, 0x12, 10, 0x34, 10, 0x56,
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-1);
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test_write_int (test_ctx, COGL_PIXEL_FORMAT_ABGR_2101010_PRE,
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0x123456ff,
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2, 0xff, 10, 0x56, 10, 0x34, 10, 0x12,
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-1);
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if (cogl_test_verbose ())
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g_print ("OK\n");
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}
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COGL_TEST_SUITE (
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g_test_add_func ("/write-texture-formats ", test_write_texture_formats);
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)
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