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testsuite: Add tests for gdk_texture_download_float()

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This commit is contained in:
Benjamin Otte 2021-09-12 04:34:42 +02:00
parent 9179ebb28e
commit 416763bf2d
1 changed files with 99 additions and 0 deletions
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99
testsuite/gdk/memorytexture.c
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@ -353,6 +353,50 @@ compare_textures (GdkTexture *expected,
g_free (test_data);
}
static void
compare_textures_float (GdkTexture *expected,
GdkTexture *test,
float eps,
gboolean has_alpha)
{
static int R = 0;
static int G = 1;
static int B = 2;
static int A = 3;
float *expected_data, *test_data;
int width, height;
int x, y;
g_assert_cmpint (gdk_texture_get_width (expected), ==, gdk_texture_get_width (test));
g_assert_cmpint (gdk_texture_get_height (expected), ==, gdk_texture_get_height (test));
width = gdk_texture_get_width (expected);
height = gdk_texture_get_height (expected);
expected_data = g_new (float, width * height * 4);
gdk_texture_download_float (expected, expected_data, width * 4);
test_data = g_new (float, width * height * 4);
gdk_texture_download_float (test, test_data, width * 4);
for (y = 0; y < height; y++)
{
for (x = 0; x < width; x++)
{
g_assert_cmpfloat_with_epsilon (expected_data[y * width + 4 * x + R], test_data[y * width + 4 * x + R], eps);
g_assert_cmpfloat_with_epsilon (expected_data[y * width + 4 * x + G], test_data[y * width + 4 * x + G], eps);
g_assert_cmpfloat_with_epsilon (expected_data[y * width + 4 * x + B], test_data[y * width + 4 * x + B], eps);
if (has_alpha)
g_assert_cmpfloat_with_epsilon (expected_data[y * width + 4 * x + A], test_data[y * width + 4 * x + A], eps);
else
g_assert_cmpfloat (1.0, ==, test_data[y * width + 4 * x + A]);
}
}
g_free (expected_data);
g_free (test_data);
}
static GdkTexture *
upload_to_gl (GdkTexture *texture)
{
@ -473,6 +517,59 @@ test_download_4x4 (gconstpointer data)
}
}
static void
test_download_float_1x1 (gconstpointer data)
{
GdkMemoryFormat format;
TextureMethod method;
GdkTexture *expected, *test;
gsize i;
decode (data, &format, &method);
for (i = 0; i < N; i++)
{
GdkRGBA color;
create_random_color (&color);
expected = create_texture (GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED, TEXTURE_METHOD_LOCAL, 1, 1, &color);
test = create_texture (format, method, 1, 1, &color);
compare_textures_float (expected, test,
G_MINFLOAT,
gdk_memory_format_has_alpha (format));
g_object_unref (expected);
g_object_unref (test);
}
}
static void
test_download_float_4x4 (gconstpointer data)
{
GdkMemoryFormat format;
TextureMethod method;
GdkTexture *expected, *test;
gsize i;
decode (data, &format, &method);
for (i = 0; i < N; i++)
{
GdkRGBA color;
create_random_color (&color);
expected = create_texture (GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED, TEXTURE_METHOD_LOCAL, 4, 4, &color);
test = create_texture (format, method, 4, 4, &color);
compare_textures_float (expected, test, G_MINFLOAT, gdk_memory_format_has_alpha (format));
g_object_unref (expected);
g_object_unref (test);
}
}
static void
add_test (const char *name,
GTestDataFunc func)
@ -508,6 +605,8 @@ main (int argc, char *argv[])
add_test ("/memorytexture/download_1x1", test_download_1x1);
add_test ("/memorytexture/download_4x4", test_download_4x4);
add_test ("/memorytexture/download_float_1x1", test_download_float_1x1);
add_test ("/memorytexture/download_float_4x4", test_download_float_4x4);
surface = gdk_surface_new_toplevel (gdk_display_get_default());
gl_renderer = gsk_ngl_renderer_new ();