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#include <locale.h>
#include <gdk/gdk.h>
/* maximum bytes per pixel */
#define MAX_BPP 4
typedef enum {
BLUE,
GREEN,
RED,
TRANSPARENT,
ALMOST_OPAQUE_REBECCAPURPLE,
N_COLORS
} Color;
const char * color_names[N_COLORS] = {
"blue",
"green",
"red",
"transparent",
"almost_opaque_rebeccapurple"
};
typedef struct _MemoryData {
gsize bytes_per_pixel;
guint opaque : 1;
guchar data[N_COLORS][MAX_BPP];
} MemoryData;
typedef struct _TestData {
GdkMemoryFormat format;
Color color;
} TestData;
#define RGBA(a, b, c, d) { 0x ## a, 0x ## b, 0x ## c, 0x ## d }
static MemoryData tests[GDK_MEMORY_N_FORMATS] = {
{ 4, FALSE, { RGBA(FF,00,00,FF), RGBA(00,FF,00,FF), RGBA(00,00,FF,FF), RGBA(00,00,00,00), RGBA(66,22,44,AA) } },
{ 4, FALSE, { RGBA(FF,00,00,FF), RGBA(FF,00,FF,00), RGBA(FF,FF,00,00), RGBA(00,00,00,00), RGBA(AA,44,22,66) } },
{ 4, FALSE, { RGBA(00,00,FF,FF), RGBA(00,FF,00,FF), RGBA(FF,00,00,FF), RGBA(00,00,00,00), RGBA(44,22,66,AA) } },
{ 4, FALSE, { RGBA(FF,00,00,FF), RGBA(00,FF,00,FF), RGBA(00,00,FF,FF), RGBA(00,00,00,00), RGBA(99,33,66,AA) } },
{ 4, FALSE, { RGBA(FF,00,00,FF), RGBA(FF,00,FF,00), RGBA(FF,FF,00,00), RGBA(00,00,00,00), RGBA(AA,66,33,99) } },
{ 4, FALSE, { RGBA(00,00,FF,FF), RGBA(00,FF,00,FF), RGBA(FF,00,00,FF), RGBA(00,00,00,00), RGBA(66,33,99,AA) } },
{ 4, FALSE, { RGBA(FF,FF,00,00), RGBA(FF,00,FF,00), RGBA(FF,00,00,FF), RGBA(00,00,00,00), RGBA(AA,99,33,66) } },
{ 3, TRUE, { RGBA(00,00,FF,00), RGBA(00,FF,00,00), RGBA(FF,00,00,00), RGBA(00,00,00,00), RGBA(44,22,66,00) } },
{ 3, TRUE, { RGBA(FF,00,00,00), RGBA(00,FF,00,00), RGBA(00,00,FF,00), RGBA(00,00,00,00), RGBA(66,22,44,00) } },
};
static void
compare_textures (GdkTexture *expected,
GdkTexture *test,
gboolean ignore_alpha)
{
guchar *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_malloc (width * height * 4);
gdk_texture_download (expected, expected_data, width * 4);
test_data = g_malloc (width * height * 4);
gdk_texture_download (test, test_data, width * 4);
for (y = 0; y < height; y++)
{
for (x = 0; x < width; x++)
{
if (ignore_alpha)
g_assert_cmphex (*(guint32 *) &expected_data[y * width + x * 4] & 0xFFFFFF, ==, *(guint32 *) &test_data[y * width + x * 4] & 0xFFFFFF);
else
g_assert_cmphex (*(guint32 *) &expected_data[y * width + x * 4], ==, *(guint32 *) &test_data[y * width + x * 4]);
}
}
g_free (expected_data);
g_free (test_data);
}
static GdkTexture *
create_texture (GdkMemoryFormat format,
Color color,
int width,
int height,
gsize stride)
{
GdkTexture *texture;
GBytes *bytes;
guchar *data;
int x, y;
data = g_malloc (height * MAX (stride, tests[format].bytes_per_pixel));
for (y = 0; y < height; y++)
for (x = 0; x < width; x++)
{
memcpy (&data[y * stride + x * tests[format].bytes_per_pixel],
&tests[format].data[color],
tests[format].bytes_per_pixel);
}
bytes = g_bytes_new_take (data, height * MAX (stride, tests[format].bytes_per_pixel));
texture = gdk_memory_texture_new (width, height,
format,
bytes,
stride);
g_bytes_unref (bytes);
return texture;
}
static void
test_download_1x1 (gconstpointer data)
{
const TestData *test_data = data;
GdkTexture *expected, *test;
expected = create_texture (GDK_MEMORY_DEFAULT, test_data->color, 1, 1, tests[test_data->format].bytes_per_pixel);
test = create_texture (test_data->format, test_data->color, 1, 1, tests[test_data->format].bytes_per_pixel);
compare_textures (expected, test, tests[test_data->format].opaque);
g_object_unref (expected);
g_object_unref (test);
}
static void
test_download_1x1_with_stride (gconstpointer data)
{
const TestData *test_data = data;
GdkTexture *expected, *test;
expected = create_texture (GDK_MEMORY_DEFAULT, test_data->color, 1, 1, 4);
test = create_texture (test_data->format, test_data->color, 1, 1, 2 * MAX_BPP);
compare_textures (expected, test, tests[test_data->format].opaque);
g_object_unref (expected);
g_object_unref (test);
}
static void
test_download_4x4 (gconstpointer data)
{
const TestData *test_data = data;
GdkTexture *expected, *test;
expected = create_texture (GDK_MEMORY_DEFAULT, test_data->color, 4, 4, 16);
test = create_texture (test_data->format, test_data->color, 4, 4, 4 * tests[test_data->format].bytes_per_pixel);
compare_textures (expected, test, tests[test_data->format].opaque);
g_object_unref (expected);
g_object_unref (test);
}
static void
test_download_4x4_with_stride (gconstpointer data)
{
const TestData *test_data = data;
GdkTexture *expected, *test;
expected = create_texture (GDK_MEMORY_DEFAULT, test_data->color, 4, 4, 16);
test = create_texture (test_data->format, test_data->color, 4, 4, 4 * MAX_BPP);
compare_textures (expected, test, tests[test_data->format].opaque);
g_object_unref (expected);
g_object_unref (test);
}
int
main (int argc, char *argv[])
{
GdkMemoryFormat format;
Color color;
GEnumClass *enum_class;
g_test_init (&argc, &argv, NULL);
enum_class = g_type_class_ref (GDK_TYPE_MEMORY_FORMAT);
for (format = 0; format < GDK_MEMORY_N_FORMATS; format++)
{
for (color = 0; color < N_COLORS; color++)
{
TestData *test_data = g_new (TestData, 1);
char *test_name = g_strdup_printf ("/memorytexture/download_1x1/%s/%s",
g_enum_get_value (enum_class, format)->value_nick,
color_names[color]);
test_data->format = format;
test_data->color = color;
g_test_add_data_func_full (test_name, test_data, test_download_1x1, g_free);
g_free (test_name);
test_data = g_new (TestData, 1);
test_name = g_strdup_printf ("/memorytexture/download_1x1_with_stride/%s/%s",
g_enum_get_value (enum_class, format)->value_nick,
color_names[color]);
test_data->format = format;
test_data->color = color;
g_test_add_data_func_full (test_name, test_data, test_download_1x1_with_stride, g_free);
g_free (test_name);
test_data = g_new (TestData, 1);
test_name = g_strdup_printf ("/memorytexture/download_4x4/%s/%s",
g_enum_get_value (enum_class, format)->value_nick,
color_names[color]);
test_data->format = format;
test_data->color = color;
g_test_add_data_func_full (test_name, test_data, test_download_4x4, g_free);
g_free (test_name);
test_data = g_new (TestData, 1);
test_name = g_strdup_printf ("/memorytexture/download_4x4_with_stride/%s/%s",
g_enum_get_value (enum_class, format)->value_nick,
color_names[color]);
test_data->format = format;
test_data->color = color;
g_test_add_data_func_full (test_name, test_data, test_download_4x4_with_stride, g_free);
g_free (test_name);
}
}
return g_test_run ();
}
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