testsuite: Overhaul memorytexture test

Instead of hardcoding pixel values, allow construction of textures by
filling them with GdkRGBA values.
This commit is contained in:
Benjamin Otte 2021-09-11 21:19:48 +02:00
parent 719eafa60c
commit c9d748fc51

View File

@ -1,9 +1,6 @@
#include <locale.h>
#include <gdk/gdk.h>
/* maximum bytes per pixel */
#define MAX_BPP 4
typedef enum {
BLUE,
GREEN,
@ -13,7 +10,7 @@ typedef enum {
N_COLORS
} Color;
const char * color_names[N_COLORS] = {
static const char * color_names[N_COLORS] = {
"blue",
"green",
"red",
@ -21,37 +18,310 @@ const char * color_names[N_COLORS] = {
"almost_opaque_rebeccapurple"
};
typedef struct _MemoryData {
gsize bytes_per_pixel;
guint opaque : 1;
guchar data[N_COLORS][MAX_BPP];
} MemoryData;
static const GdkRGBA colors[N_COLORS] = {
{ 0.0, 0.0, 1.0, 1.0 },
{ 0.0, 1.0, 0.0, 1.0 },
{ 1.0, 0.0, 0.0, 1.0 },
{ 0.0, 0.0, 0.0, 0.0 },
{ 0.4, 0.2, 0.6, 2.f/3.f },
};
typedef struct _TestData {
typedef struct _TextureBuilder TextureBuilder;
typedef struct _TestData TestData;
struct _TextureBuilder
{
GdkMemoryFormat format;
int width;
int height;
guchar *pixels;
gsize stride;
gsize offset;
};
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 gsize
gdk_memory_format_bytes_per_pixel (GdkMemoryFormat format)
{
switch (format)
{
case GDK_MEMORY_R8G8B8:
case GDK_MEMORY_B8G8R8:
return 3;
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
return 4;
case GDK_MEMORY_R16G16B16:
case GDK_MEMORY_R16G16B16_FLOAT:
return 6;
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
return 8;
case GDK_MEMORY_R32G32B32_FLOAT:
return 12;
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
return 16;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return 4;
}
}
static gboolean
gdk_memory_format_has_alpha (GdkMemoryFormat format)
{
switch (format)
{
case GDK_MEMORY_R8G8B8:
case GDK_MEMORY_B8G8R8:
case GDK_MEMORY_R16G16B16:
case GDK_MEMORY_R16G16B16_FLOAT:
case GDK_MEMORY_R32G32B32_FLOAT:
return FALSE;
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
return TRUE;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return TRUE;
}
}
static void
texture_builder_init (TextureBuilder *builder,
GdkMemoryFormat format,
int width,
int height)
{
gsize extra_stride;
builder->format = format;
builder->width = width;
builder->height = height;
extra_stride = g_test_rand_bit() ? g_test_rand_int_range (0, 16) : 0;
builder->offset = g_test_rand_bit() ? g_test_rand_int_range (0, 128) : 0;
builder->stride = width * gdk_memory_format_bytes_per_pixel (format) + extra_stride;
builder->pixels = g_malloc0 (builder->offset + builder->stride * height);
}
static GdkTexture *
texture_builder_finish (TextureBuilder *builder)
{
GBytes *bytes;
GdkTexture *texture;
bytes = g_bytes_new_with_free_func (builder->pixels + builder->offset,
builder->height * builder->stride,
g_free,
builder->pixels);
texture = gdk_memory_texture_new (builder->width,
builder->height,
builder->format,
bytes,
builder->stride);
g_bytes_unref (bytes);
return texture;
}
static inline void
set_pixel_u8 (guchar *data,
int r,
int g,
int b,
int a,
gboolean premultiply,
const GdkRGBA *color)
{
if (a >= 0)
data[a] = CLAMP (color->alpha * 256.f, 0.f, 255.f);
if (premultiply)
{
data[r] = CLAMP (color->red * color->alpha * 256.f, 0.f, 255.f);
data[g] = CLAMP (color->green * color->alpha * 256.f, 0.f, 255.f);
data[b] = CLAMP (color->blue * color->alpha * 256.f, 0.f, 255.f);
}
else
{
data[r] = CLAMP (color->red * 256.f, 0.f, 255.f);
data[g] = CLAMP (color->green * 256.f, 0.f, 255.f);
data[b] = CLAMP (color->blue * 256.f, 0.f, 255.f);
}
}
static inline guint16
float_to_half (const float x)
{
const guint b = *(guint*)&x+0x00001000; // round-to-nearest-even
const guint e = (b&0x7F800000)>>23; // exponent
const guint m = b&0x007FFFFF; // mantissa
return (b&0x80000000)>>16 | (e>112)*((((e-112)<<10)&0x7C00)|m>>13) | ((e<113)&(e>101))*((((0x007FF000+m)>>(125-e))+1)>>1) | (e>143)*0x7FFF; // sign : normalized : denormalized : saturate
}
static void
texture_builder_set_pixel (TextureBuilder *builder,
int x,
int y,
const GdkRGBA *color)
{
guchar *data;
g_assert_cmpint (x, >=, 0);
g_assert_cmpint (x, <, builder->width);
g_assert_cmpint (y, >=, 0);
g_assert_cmpint (y, <, builder->height);
data = builder->pixels
+ builder->offset
+ y * builder->stride
+ x * gdk_memory_format_bytes_per_pixel (builder->format);
switch (builder->format)
{
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
set_pixel_u8 (data, 2, 1, 0, 3, TRUE, color);
break;
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
set_pixel_u8 (data, 1, 2, 3, 0, TRUE, color);
break;
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
set_pixel_u8 (data, 0, 1, 2, 3, TRUE, color);
break;
case GDK_MEMORY_B8G8R8A8:
set_pixel_u8 (data, 2, 1, 0, 3, FALSE, color);
break;
case GDK_MEMORY_A8R8G8B8:
set_pixel_u8 (data, 1, 2, 3, 0, FALSE, color);
break;
case GDK_MEMORY_R8G8B8A8:
set_pixel_u8 (data, 0, 1, 2, 3, FALSE, color);
break;
case GDK_MEMORY_A8B8G8R8:
set_pixel_u8 (data, 3, 2, 1, 0, FALSE, color);
break;
case GDK_MEMORY_R8G8B8:
set_pixel_u8 (data, 0, 1, 2, -1, TRUE, color);
break;
case GDK_MEMORY_B8G8R8:
set_pixel_u8 (data, 2, 1, 0, -1, TRUE, color);
break;
case GDK_MEMORY_R16G16B16:
{
guint16 pixels[3] = {
CLAMP (color->red * color->alpha * 65536.f, 0, 65535.f),
CLAMP (color->green * color->alpha * 65536.f, 0, 65535.f),
CLAMP (color->blue * color->alpha * 65536.f, 0, 65535.f),
};
memcpy (data, pixels, 3 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
{
guint16 pixels[4] = {
CLAMP (color->red * color->alpha * 65536.f, 0, 65535.f),
CLAMP (color->green * color->alpha * 65536.f, 0, 65535.f),
CLAMP (color->blue * color->alpha * 65536.f, 0, 65535.f),
CLAMP (color->alpha * 65536.f, 0, 65535.f),
};
memcpy (data, pixels, 4 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16_FLOAT:
{
guint16 pixels[3] = {
float_to_half (color->red * color->alpha),
float_to_half (color->green * color->alpha),
float_to_half (color->blue * color->alpha)
};
memcpy (data, pixels, 3 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
{
guint16 pixels[4] = {
float_to_half (color->red * color->alpha),
float_to_half (color->green * color->alpha),
float_to_half (color->blue * color->alpha),
float_to_half (color->alpha)
};
memcpy (data, pixels, 4 * sizeof (guint16));
}
break;
case GDK_MEMORY_R32G32B32_FLOAT:
{
float pixels[3] = {
color->red * color->alpha,
color->green * color->alpha,
color->blue * color->alpha
};
memcpy (data, pixels, 3 * sizeof (float));
}
break;
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
{
float pixels[4] = {
color->red * color->alpha,
color->green * color->alpha,
color->blue * color->alpha,
color->alpha
};
memcpy (data, pixels, 4 * sizeof (float));
}
break;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
break;
}
}
static void
texture_builder_fill (TextureBuilder *builder,
const GdkRGBA *color)
{
int x, y;
for (y = 0; y < builder->height; y++)
for (x = 0; x < builder->width; x++)
texture_builder_set_pixel (builder, x, y, color);
}
static void
compare_textures (GdkTexture *expected,
GdkTexture *test,
gboolean ignore_alpha)
gboolean has_alpha)
{
guchar *expected_data, *test_data;
guint32 *expected_data, *test_data;
int width, height;
int x, y;
@ -61,20 +331,20 @@ compare_textures (GdkTexture *expected,
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);
expected_data = g_new (guint32, width * height);
gdk_texture_download (expected, (guchar *) expected_data, width * 4);
test_data = g_malloc (width * height * 4);
gdk_texture_download (test, test_data, width * 4);
test_data = g_new (guint32, width * height);
gdk_texture_download (test, (guchar *) 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);
if (has_alpha)
g_assert_cmphex (expected_data[y * width + x], ==, test_data[y * width + x]);
else
g_assert_cmphex (*(guint32 *) &expected_data[y * width + x * 4], ==, *(guint32 *) &test_data[y * width + x * 4]);
g_assert_cmphex (expected_data[y * width + x] | 0xFF000000, ==, test_data[y * width + x]);
}
}
@ -84,33 +354,16 @@ compare_textures (GdkTexture *expected,
static GdkTexture *
create_texture (GdkMemoryFormat format,
Color color,
int width,
int height,
gsize stride)
const GdkRGBA *color)
{
GdkTexture *texture;
GBytes *bytes;
guchar *data;
int x, y;
TextureBuilder builder;
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);
}
texture_builder_init (&builder, format, width, height);
texture_builder_fill (&builder, color);
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;
return texture_builder_finish (&builder);
}
static void
@ -119,25 +372,10 @@ 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);
expected = create_texture (GDK_MEMORY_DEFAULT, 1, 1, &colors[test_data->color]);
test = create_texture (test_data->format, 1, 1, &colors[test_data->color]);
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);
compare_textures (expected, test, gdk_memory_format_has_alpha (test_data->format));
g_object_unref (expected);
g_object_unref (test);
@ -149,39 +387,23 @@ 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);
expected = create_texture (GDK_MEMORY_DEFAULT, 4, 4, &colors[test_data->color]);
test = create_texture (test_data->format, 4, 4, &colors[test_data->color]);
compare_textures (expected, test, tests[test_data->format].opaque);
compare_textures (expected, test, gdk_memory_format_has_alpha (test_data->format));
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[])
add_test (const char *name,
GTestDataFunc func)
{
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++)
@ -189,42 +411,25 @@ main (int argc, char *argv[])
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",
char *test_name = g_strdup_printf ("%s/%s/%s",
name,
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);
}
}
}
int
main (int argc, char *argv[])
{
(g_test_init) (&argc, &argv, NULL);
add_test ("/memorytexture/download_1x1", test_download_1x1);
add_test ("/memorytexture/download_4x4", test_download_4x4);
return g_test_run ();
}