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testsuite: Extract common code from gdk/memorytexture and gsk/scaling

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Signed-off-by: Simon McVittie <smcv@debian.org>
This commit is contained in:
Simon McVittie 2024-09-02 23:32:38 +01:00
parent b18c6b5781
commit 8e54460a48
6 changed files with 723 additions and 1317 deletions
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670
testsuite/gdk/gdktestutils.c Normal file
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#include "gdktestutils.h"
#include "gsk/gl/fp16private.h"
gsize
gdk_memory_format_bytes_per_pixel (GdkMemoryFormat format)
{
switch (format)
{
case GDK_MEMORY_G8:
case GDK_MEMORY_A8:
return 1;
case GDK_MEMORY_G8A8_PREMULTIPLIED:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G16:
case GDK_MEMORY_A16:
case GDK_MEMORY_A16_FLOAT:
return 2;
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_A8B8G8R8_PREMULTIPLIED:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_R8G8B8X8:
case GDK_MEMORY_X8B8G8R8:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_G16A16:
case GDK_MEMORY_A32_FLOAT:
return 4;
case GDK_MEMORY_R16G16B16:
case GDK_MEMORY_R16G16B16_FLOAT:
return 6;
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT:
return 8;
case GDK_MEMORY_R32G32B32_FLOAT:
return 12;
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R32G32B32A32_FLOAT:
return 16;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return 4;
}
}
ChannelType
gdk_memory_format_get_channel_type (GdkMemoryFormat format)
{
switch (format)
{
case GDK_MEMORY_R8G8B8:
case GDK_MEMORY_B8G8R8:
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_A8B8G8R8_PREMULTIPLIED:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_R8G8B8X8:
case GDK_MEMORY_X8B8G8R8:
case GDK_MEMORY_G8:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G8A8_PREMULTIPLIED:
case GDK_MEMORY_A8:
return CHANNEL_UINT_8;
case GDK_MEMORY_R16G16B16:
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16:
case GDK_MEMORY_G16:
case GDK_MEMORY_G16A16:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_A16:
return CHANNEL_UINT_16;
case GDK_MEMORY_R16G16B16_FLOAT:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT:
case GDK_MEMORY_A16_FLOAT:
return CHANNEL_FLOAT_16;
case GDK_MEMORY_R32G32B32_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R32G32B32A32_FLOAT:
case GDK_MEMORY_A32_FLOAT:
return CHANNEL_FLOAT_32;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return CHANNEL_UINT_8;
}
}
/* return the number of color channels, ignoring alpha */
guint
gdk_memory_format_n_colors (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:
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_A8B8G8R8_PREMULTIPLIED:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_R8G8B8X8:
case GDK_MEMORY_X8B8G8R8:
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R32G32B32A32_FLOAT:
return 3;
case GDK_MEMORY_G8:
case GDK_MEMORY_G16:
case GDK_MEMORY_G8A8_PREMULTIPLIED:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_G16A16:
return 1;
case GDK_MEMORY_A8:
case GDK_MEMORY_A16:
case GDK_MEMORY_A16_FLOAT:
case GDK_MEMORY_A32_FLOAT:
return 0;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return TRUE;
}
}
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:
case GDK_MEMORY_G8:
case GDK_MEMORY_G16:
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_R8G8B8X8:
case GDK_MEMORY_X8B8G8R8:
return FALSE;
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_A8B8G8R8_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:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R32G32B32A32_FLOAT:
case GDK_MEMORY_G8A8_PREMULTIPLIED:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_G16A16:
case GDK_MEMORY_A8:
case GDK_MEMORY_A16:
case GDK_MEMORY_A16_FLOAT:
case GDK_MEMORY_A32_FLOAT:
return TRUE;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return TRUE;
}
}
gboolean
gdk_memory_format_is_premultiplied (GdkMemoryFormat format)
{
switch (format)
{
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_A8B8G8R8_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_G8A8_PREMULTIPLIED:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_A8:
case GDK_MEMORY_A16:
case GDK_MEMORY_A16_FLOAT:
case GDK_MEMORY_A32_FLOAT:
return TRUE;
case GDK_MEMORY_R8G8B8:
case GDK_MEMORY_B8G8R8:
case GDK_MEMORY_R16G16B16:
case GDK_MEMORY_R16G16B16_FLOAT:
case GDK_MEMORY_R32G32B32_FLOAT:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_R8G8B8X8:
case GDK_MEMORY_X8B8G8R8:
case GDK_MEMORY_R16G16B16A16:
case GDK_MEMORY_R16G16B16A16_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT:
case GDK_MEMORY_G8:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G16:
case GDK_MEMORY_G16A16:
return FALSE;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return FALSE;
}
}
gboolean
gdk_memory_format_is_deep (GdkMemoryFormat format)
{
return gdk_memory_format_get_channel_type (format) != CHANNEL_UINT_8;
}
gboolean
gdk_memory_format_pixel_equal (GdkMemoryFormat format,
gboolean accurate,
const guchar *pixel1,
const guchar *pixel2)
{
switch (format)
{
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_A8B8G8R8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8:
case GDK_MEMORY_B8G8R8:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
case GDK_MEMORY_A8:
case GDK_MEMORY_G8:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G8A8_PREMULTIPLIED:
return memcmp (pixel1, pixel2, gdk_memory_format_bytes_per_pixel (format)) == 0;
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_R8G8B8X8:
return memcmp (pixel1, pixel2, 3) == 0;
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_X8B8G8R8:
return memcmp (pixel1 + 1, pixel2 + 1, 3) == 0;
case GDK_MEMORY_R16G16B16:
case GDK_MEMORY_R16G16B16A16:
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_G16:
case GDK_MEMORY_G16A16:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_A16:
{
const guint16 *u1 = (const guint16 *) pixel1;
const guint16 *u2 = (const guint16 *) pixel2;
guint i;
for (i = 0; i < gdk_memory_format_bytes_per_pixel (format) / sizeof (guint16); i++)
{
if (!G_APPROX_VALUE (u1[i], u2[i], accurate ? 1 : 256))
return FALSE;
}
}
return TRUE;
case GDK_MEMORY_R16G16B16_FLOAT:
case GDK_MEMORY_R16G16B16A16_FLOAT:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_A16_FLOAT:
{
guint i;
for (i = 0; i < gdk_memory_format_bytes_per_pixel (format) / sizeof (guint16); i++)
{
float f1 = half_to_float_one (((guint16 *) pixel1)[i]);
float f2 = half_to_float_one (((guint16 *) pixel2)[i]);
if (!G_APPROX_VALUE (f1, f2, accurate ? 1./65535 : 1./255))
return FALSE;
}
}
return TRUE;
case GDK_MEMORY_R32G32B32_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_A32_FLOAT:
{
const float *f1 = (const float *) pixel1;
const float *f2 = (const float *) pixel2;
guint i;
for (i = 0; i < gdk_memory_format_bytes_per_pixel (format) / sizeof (float); i++)
{
if (!G_APPROX_VALUE (f1[i], f2[i], accurate ? 1./65535 : 1./255))
return FALSE;
}
}
return TRUE;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return FALSE;
}
}
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);
}
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 * 255.f + 0.5f, 0.f, 255.f);
if (premultiply)
{
data[r] = CLAMP (color->red * color->alpha * 255.f + 0.5f, 0.f, 255.f);
data[g] = CLAMP (color->green * color->alpha * 255.f + 0.5f, 0.f, 255.f);
data[b] = CLAMP (color->blue * color->alpha * 255.f + 0.5f, 0.f, 255.f);
}
else
{
data[r] = CLAMP (color->red * 255.f + 0.5f, 0.f, 255.f);
data[g] = CLAMP (color->green * 255.f + 0.5f, 0.f, 255.f);
data[b] = CLAMP (color->blue * 255.f + 0.5f, 0.f, 255.f);
}
}
static float
color_gray (const GdkRGBA *color)
{
return 1/3.f * (color->red + color->green + color->blue);
}
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_A8B8G8R8_PREMULTIPLIED:
set_pixel_u8 (data, 3, 2, 1, 0, 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_B8G8R8X8:
set_pixel_u8 (data, 2, 1, 0, -1, TRUE, color);
break;
case GDK_MEMORY_X8R8G8B8:
set_pixel_u8 (data, 1, 2, 3, -1, TRUE, color);
break;
case GDK_MEMORY_R8G8B8X8:
set_pixel_u8 (data, 0, 1, 2, -1, TRUE, color);
break;
case GDK_MEMORY_X8B8G8R8:
set_pixel_u8 (data, 3, 2, 1, -1, TRUE, 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 * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->green * color->alpha * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->blue * color->alpha * 65535.f + 0.5f, 0, 65535.f),
};
memcpy (data, pixels, 3 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
{
guint16 pixels[4] = {
CLAMP (color->red * color->alpha * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->green * color->alpha * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->blue * color->alpha * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->alpha * 65535.f + 0.5f, 0, 65535.f),
};
memcpy (data, pixels, 4 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16A16:
{
guint16 pixels[4] = {
CLAMP (color->red * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->green * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->blue * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->alpha * 65535.f + 0.5f, 0, 65535.f),
};
memcpy (data, pixels, 4 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16_FLOAT:
{
guint16 pixels[3] = {
float_to_half_one (color->red * color->alpha),
float_to_half_one (color->green * color->alpha),
float_to_half_one (color->blue * color->alpha)
};
memcpy (data, pixels, 3 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
{
guint16 pixels[4] = {
float_to_half_one (color->red * color->alpha),
float_to_half_one (color->green * color->alpha),
float_to_half_one (color->blue * color->alpha),
float_to_half_one (color->alpha)
};
memcpy (data, pixels, 4 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16A16_FLOAT:
{
guint16 pixels[4] = {
float_to_half_one (color->red),
float_to_half_one (color->green),
float_to_half_one (color->blue),
float_to_half_one (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_R32G32B32A32_FLOAT:
{
float pixels[4] = {
color->red,
color->green,
color->blue,
color->alpha
};
memcpy (data, pixels, 4 * sizeof (float));
}
break;
case GDK_MEMORY_G8A8_PREMULTIPLIED:
{
data[0] = CLAMP (color_gray (color) * color->alpha * 255.f + 0.5f, 0.f, 255.f);
data[1] = CLAMP (color->alpha * 255.f + 0.5f, 0.f, 255.f);
}
break;
case GDK_MEMORY_G8A8:
{
data[0] = CLAMP (color_gray (color) * 255.f + 0.5f, 0.f, 255.f);
data[1] = CLAMP (color->alpha * 255.f + 0.5f, 0.f, 255.f);
}
break;
case GDK_MEMORY_G8:
{
*data = CLAMP (color_gray (color) * color->alpha * 255.f + 0.5f, 0.f, 255.f);
}
break;
case GDK_MEMORY_G16A16_PREMULTIPLIED:
{
guint16 pixels[2] = {
CLAMP (color_gray (color) * color->alpha * 65535.f + 0.5f, 0.f, 65535.f),
CLAMP (color->alpha * 65535.f + 0.5f, 0.f, 65535.f),
};
memcpy (data, pixels, 2 * sizeof (guint16));
}
break;
case GDK_MEMORY_G16A16:
{
guint16 pixels[2] = {
CLAMP (color_gray (color) * 65535.f + 0.5f, 0.f, 65535.f),
CLAMP (color->alpha * 65535.f + 0.5f, 0.f, 65535.f),
};
memcpy (data, pixels, 2 * sizeof (guint16));
}
break;
case GDK_MEMORY_G16:
{
guint16 pixel = CLAMP (color_gray (color) * color->alpha * 65535.f + 0.5f, 0.f, 65535.f);
memcpy (data, &pixel, sizeof (guint16));
}
break;
case GDK_MEMORY_A8:
{
*data = CLAMP (color->alpha * 255.f + 0.5f, 0.f, 255.f);
}
break;
case GDK_MEMORY_A16:
{
guint16 pixel = CLAMP (color->alpha * 65535.f, 0.f, 65535.f);
memcpy (data, &pixel, sizeof (guint16));
}
break;
case GDK_MEMORY_A16_FLOAT:
{
guint16 pixel = float_to_half_one (color->alpha);
memcpy (data, &pixel, sizeof (guint16));
}
break;
case GDK_MEMORY_A32_FLOAT:
{
memcpy (data, &color->alpha, sizeof (float));
}
break;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
break;
}
}
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);
}

49
testsuite/gdk/gdktestutils.h Normal file
View File

@ -0,0 +1,49 @@
#pragma once
#include <gdk/gdk.h>
/* This shadows a function of the same name in a GDK private header,
* because tests can't use hidden functions from the shared library */
#define gdk_memory_format_bytes_per_pixel test_memory_format_bytes_per_pixel
typedef enum {
CHANNEL_UINT_8,
CHANNEL_UINT_16,
CHANNEL_FLOAT_16,
CHANNEL_FLOAT_32,
} ChannelType;
typedef struct _TextureBuilder TextureBuilder;
struct _TextureBuilder
{
GdkMemoryFormat format;
int width;
int height;
guchar *pixels;
gsize stride;
gsize offset;
};
gsize gdk_memory_format_bytes_per_pixel (GdkMemoryFormat format);
ChannelType gdk_memory_format_get_channel_type (GdkMemoryFormat format);
guint gdk_memory_format_n_colors (GdkMemoryFormat format);
gboolean gdk_memory_format_has_alpha (GdkMemoryFormat format);
gboolean gdk_memory_format_is_premultiplied (GdkMemoryFormat format);
gboolean gdk_memory_format_is_deep (GdkMemoryFormat format);
gboolean gdk_memory_format_pixel_equal (GdkMemoryFormat format,
gboolean accurate,
const guchar *pixel1,
const guchar *pixel2);
void texture_builder_init (TextureBuilder *builder,
GdkMemoryFormat format,
int width,
int height);
GdkTexture *texture_builder_finish (TextureBuilder *builder);
void texture_builder_fill (TextureBuilder *builder,
const GdkRGBA *color);
void texture_builder_set_pixel (TextureBuilder *builder,
int x,
int y,
const GdkRGBA *color);

688
testsuite/gdk/memorytexture.c
View File

@ -3,6 +3,7 @@
#include <epoxy/gl.h>
#include "gsk/gl/fp16private.h"
#include "testsuite/gdk/gdktestutils.h"
#define N 10
@ -11,8 +12,6 @@ static GskRenderer *gl_renderer = NULL;
static GskRenderer *ngl_renderer = NULL;
static GskRenderer *vulkan_renderer = NULL;
typedef struct _TextureBuilder TextureBuilder;
typedef enum {
TEXTURE_METHOD_LOCAL,
TEXTURE_METHOD_GL,
@ -28,294 +27,6 @@ typedef enum {
N_TEXTURE_METHODS
} TextureMethod;
typedef enum {
CHANNEL_UINT_8,
CHANNEL_UINT_16,
CHANNEL_FLOAT_16,
CHANNEL_FLOAT_32,
} ChannelType;
struct _TextureBuilder
{
GdkMemoryFormat format;
int width;
int height;
guchar *pixels;
gsize stride;
gsize offset;
};
static gsize
gdk_memory_format_bytes_per_pixel (GdkMemoryFormat format)
{
switch (format)
{
case GDK_MEMORY_G8:
case GDK_MEMORY_A8:
return 1;
case GDK_MEMORY_G8A8_PREMULTIPLIED:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G16:
case GDK_MEMORY_A16:
case GDK_MEMORY_A16_FLOAT:
return 2;
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_A8B8G8R8_PREMULTIPLIED:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_R8G8B8X8:
case GDK_MEMORY_X8B8G8R8:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_G16A16:
case GDK_MEMORY_A32_FLOAT:
return 4;
case GDK_MEMORY_R16G16B16:
case GDK_MEMORY_R16G16B16_FLOAT:
return 6;
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT:
return 8;
case GDK_MEMORY_R32G32B32_FLOAT:
return 12;
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R32G32B32A32_FLOAT:
return 16;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return 4;
}
}
static ChannelType
gdk_memory_format_get_channel_type (GdkMemoryFormat format)
{
switch (format)
{
case GDK_MEMORY_R8G8B8:
case GDK_MEMORY_B8G8R8:
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_A8B8G8R8_PREMULTIPLIED:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_R8G8B8X8:
case GDK_MEMORY_X8B8G8R8:
case GDK_MEMORY_G8:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G8A8_PREMULTIPLIED:
case GDK_MEMORY_A8:
return CHANNEL_UINT_8;
case GDK_MEMORY_R16G16B16:
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16:
case GDK_MEMORY_G16:
case GDK_MEMORY_G16A16:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_A16:
return CHANNEL_UINT_16;
case GDK_MEMORY_R16G16B16_FLOAT:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT:
case GDK_MEMORY_A16_FLOAT:
return CHANNEL_FLOAT_16;
case GDK_MEMORY_R32G32B32_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R32G32B32A32_FLOAT:
case GDK_MEMORY_A32_FLOAT:
return CHANNEL_FLOAT_32;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return CHANNEL_UINT_8;
}
}
/* return the number of color channels, ignoring alpha */
static guint
gdk_memory_format_n_colors (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:
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_A8B8G8R8_PREMULTIPLIED:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_R8G8B8X8:
case GDK_MEMORY_X8B8G8R8:
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R32G32B32A32_FLOAT:
return 3;
case GDK_MEMORY_G8:
case GDK_MEMORY_G16:
case GDK_MEMORY_G8A8_PREMULTIPLIED:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_G16A16:
return 1;
case GDK_MEMORY_A8:
case GDK_MEMORY_A16:
case GDK_MEMORY_A16_FLOAT:
case GDK_MEMORY_A32_FLOAT:
return 0;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return TRUE;
}
}
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:
case GDK_MEMORY_G8:
case GDK_MEMORY_G16:
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_R8G8B8X8:
case GDK_MEMORY_X8B8G8R8:
return FALSE;
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_A8B8G8R8_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:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R32G32B32A32_FLOAT:
case GDK_MEMORY_G8A8_PREMULTIPLIED:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_G16A16:
case GDK_MEMORY_A8:
case GDK_MEMORY_A16:
case GDK_MEMORY_A16_FLOAT:
case GDK_MEMORY_A32_FLOAT:
return TRUE;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return TRUE;
}
}
static gboolean
gdk_memory_format_is_premultiplied (GdkMemoryFormat format)
{
switch (format)
{
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_A8B8G8R8_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_G8A8_PREMULTIPLIED:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_A8:
case GDK_MEMORY_A16:
case GDK_MEMORY_A16_FLOAT:
case GDK_MEMORY_A32_FLOAT:
return TRUE;
case GDK_MEMORY_R8G8B8:
case GDK_MEMORY_B8G8R8:
case GDK_MEMORY_R16G16B16:
case GDK_MEMORY_R16G16B16_FLOAT:
case GDK_MEMORY_R32G32B32_FLOAT:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_R8G8B8X8:
case GDK_MEMORY_X8B8G8R8:
case GDK_MEMORY_R16G16B16A16:
case GDK_MEMORY_R16G16B16A16_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT:
case GDK_MEMORY_G8:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G16:
case GDK_MEMORY_G16A16:
return FALSE;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return FALSE;
}
}
static gboolean
gdk_memory_format_is_deep (GdkMemoryFormat format)
{
return gdk_memory_format_get_channel_type (format) != CHANNEL_UINT_8;
}
static void
gdk_memory_format_pixel_print (GdkMemoryFormat format,
const guchar *data,
@ -437,96 +148,6 @@ gdk_memory_format_pixel_print (GdkMemoryFormat format,
}
}
static gboolean
gdk_memory_format_pixel_equal (GdkMemoryFormat format,
gboolean accurate,
const guchar *pixel1,
const guchar *pixel2)
{
switch (format)
{
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_A8B8G8R8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8:
case GDK_MEMORY_B8G8R8:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
case GDK_MEMORY_A8:
case GDK_MEMORY_G8:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G8A8_PREMULTIPLIED:
return memcmp (pixel1, pixel2, gdk_memory_format_bytes_per_pixel (format)) == 0;
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_R8G8B8X8:
return memcmp (pixel1, pixel2, 3) == 0;
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_X8B8G8R8:
return memcmp (pixel1 + 1, pixel2 + 1, 3) == 0;
case GDK_MEMORY_R16G16B16:
case GDK_MEMORY_R16G16B16A16:
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_G16:
case GDK_MEMORY_G16A16:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_A16:
{
const guint16 *u1 = (const guint16 *) pixel1;
const guint16 *u2 = (const guint16 *) pixel2;
guint i;
for (i = 0; i < gdk_memory_format_bytes_per_pixel (format) / sizeof (guint16); i++)
{
if (!G_APPROX_VALUE (u1[i], u2[i], accurate ? 1 : 256))
return FALSE;
}
}
return TRUE;
case GDK_MEMORY_R16G16B16_FLOAT:
case GDK_MEMORY_R16G16B16A16_FLOAT:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_A16_FLOAT:
{
guint i;
for (i = 0; i < gdk_memory_format_bytes_per_pixel (format) / sizeof (guint16); i++)
{
float f1 = half_to_float_one (((guint16 *) pixel1)[i]);
float f2 = half_to_float_one (((guint16 *) pixel2)[i]);
if (!G_APPROX_VALUE (f1, f2, accurate ? 1./65535 : 1./255))
return FALSE;
}
}
return TRUE;
case GDK_MEMORY_R32G32B32_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_A32_FLOAT:
{
const float *f1 = (const float *) pixel1;
const float *f2 = (const float *) pixel2;
guint i;
for (i = 0; i < gdk_memory_format_bytes_per_pixel (format) / sizeof (float); i++)
{
if (!G_APPROX_VALUE (f1[i], f2[i], accurate ? 1./65535 : 1./255))
return FALSE;
}
}
return TRUE;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return FALSE;
}
}
static gpointer
encode (GdkMemoryFormat format,
TextureMethod method)
@ -567,313 +188,6 @@ decode_two_formats (gconstpointer data,
*format1 = value;
}
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 * 255.f + 0.5f, 0.f, 255.f);
if (premultiply)
{
data[r] = CLAMP (color->red * color->alpha * 255.f + 0.5f, 0.f, 255.f);
data[g] = CLAMP (color->green * color->alpha * 255.f + 0.5f, 0.f, 255.f);
data[b] = CLAMP (color->blue * color->alpha * 255.f + 0.5f, 0.f, 255.f);
}
else
{
data[r] = CLAMP (color->red * 255.f + 0.5f, 0.f, 255.f);
data[g] = CLAMP (color->green * 255.f + 0.5f, 0.f, 255.f);
data[b] = CLAMP (color->blue * 255.f + 0.5f, 0.f, 255.f);
}
}
static float
color_gray (const GdkRGBA *color)
{
return 1/3.f * (color->red + color->green + color->blue);
}
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_A8B8G8R8_PREMULTIPLIED:
set_pixel_u8 (data, 3, 2, 1, 0, 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_B8G8R8X8:
set_pixel_u8 (data, 2, 1, 0, -1, TRUE, color);
break;
case GDK_MEMORY_X8R8G8B8:
set_pixel_u8 (data, 1, 2, 3, -1, TRUE, color);
break;
case GDK_MEMORY_R8G8B8X8:
set_pixel_u8 (data, 0, 1, 2, -1, TRUE, color);
break;
case GDK_MEMORY_X8B8G8R8:
set_pixel_u8 (data, 3, 2, 1, -1, TRUE, 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 * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->green * color->alpha * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->blue * color->alpha * 65535.f + 0.5f, 0, 65535.f),
};
memcpy (data, pixels, 3 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
{
guint16 pixels[4] = {
CLAMP (color->red * color->alpha * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->green * color->alpha * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->blue * color->alpha * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->alpha * 65535.f + 0.5f, 0, 65535.f),
};
memcpy (data, pixels, 4 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16A16:
{
guint16 pixels[4] = {
CLAMP (color->red * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->green * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->blue * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->alpha * 65535.f + 0.5f, 0, 65535.f),
};
memcpy (data, pixels, 4 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16_FLOAT:
{
guint16 pixels[3] = {
float_to_half_one (color->red * color->alpha),
float_to_half_one (color->green * color->alpha),
float_to_half_one (color->blue * color->alpha)
};
memcpy (data, pixels, 3 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
{
guint16 pixels[4] = {
float_to_half_one (color->red * color->alpha),
float_to_half_one (color->green * color->alpha),
float_to_half_one (color->blue * color->alpha),
float_to_half_one (color->alpha)
};
memcpy (data, pixels, 4 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16A16_FLOAT:
{
guint16 pixels[4] = {
float_to_half_one (color->red),
float_to_half_one (color->green),
float_to_half_one (color->blue),
float_to_half_one (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_R32G32B32A32_FLOAT:
{
float pixels[4] = {
color->red,
color->green,
color->blue,
color->alpha
};
memcpy (data, pixels, 4 * sizeof (float));
}
break;
case GDK_MEMORY_G8A8_PREMULTIPLIED:
{
data[0] = CLAMP (color_gray (color) * color->alpha * 255.f + 0.5f, 0.f, 255.f);
data[1] = CLAMP (color->alpha * 255.f + 0.5f, 0.f, 255.f);
}
break;
case GDK_MEMORY_G8A8:
{
data[0] = CLAMP (color_gray (color) * 255.f + 0.5f, 0.f, 255.f);
data[1] = CLAMP (color->alpha * 255.f + 0.5f, 0.f, 255.f);
}
break;
case GDK_MEMORY_G8:
{
*data = CLAMP (color_gray (color) * color->alpha * 255.f + 0.5f, 0.f, 255.f);
}
break;
case GDK_MEMORY_G16A16_PREMULTIPLIED:
{
guint16 pixels[2] = {
CLAMP (color_gray (color) * color->alpha * 65535.f + 0.5f, 0.f, 65535.f),
CLAMP (color->alpha * 65535.f + 0.5f, 0.f, 65535.f),
};
memcpy (data, pixels, 2 * sizeof (guint16));
}
break;
case GDK_MEMORY_G16A16:
{
guint16 pixels[2] = {
CLAMP (color_gray (color) * 65535.f + 0.5f, 0.f, 65535.f),
CLAMP (color->alpha * 65535.f + 0.5f, 0.f, 65535.f),
};
memcpy (data, pixels, 2 * sizeof (guint16));
}
break;
case GDK_MEMORY_G16:
{
guint16 pixel = CLAMP (color_gray (color) * color->alpha * 65535.f + 0.5f, 0.f, 65535.f);
memcpy (data, &pixel, sizeof (guint16));
}
break;
case GDK_MEMORY_A8:
{
*data = CLAMP (color->alpha * 255.f + 0.5f, 0.f, 255.f);
}
break;
case GDK_MEMORY_A16:
{
guint16 pixel = CLAMP (color->alpha * 65535.f, 0.f, 65535.f);
memcpy (data, &pixel, sizeof (guint16));
}
break;
case GDK_MEMORY_A16_FLOAT:
{
guint16 pixel = float_to_half_one (color->alpha);
memcpy (data, &pixel, sizeof (guint16));
}
break;
case GDK_MEMORY_A32_FLOAT:
{
memcpy (data, &color->alpha, 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 *texture1,
GdkTexture *texture2,

2
testsuite/gdk/meson.build
View File

@ -17,7 +17,7 @@ tests = [
{ 'name': 'displaymanager' },
{ 'name': 'glcontext' },
{ 'name': 'keysyms' },
{ 'name': 'memorytexture' },
{ 'name': 'memorytexture', 'sources': [ 'gdktestutils.c' ] },
{ 'name': 'rectangle' },
{ 'name': 'rgba' },
{ 'name': 'seat' },

2
testsuite/gsk/meson.build
View File

@ -542,7 +542,7 @@ tests = [
[ 'opaque' ],
[ 'path', [ 'path-utils.c' ], [ 'flaky'] ],
[ 'path-special-cases' ],
[ 'scaling' ],
[ 'scaling', [ 'scaling.c', '../gdk/gdktestutils.c' ] ],
]
test_cargs = []

629
testsuite/gsk/scaling.c
View File

@ -3,6 +3,7 @@
#define N 10
#include "gsk/gl/fp16private.h"
#include "testsuite/gdk/gdktestutils.h"
struct {
const char *name;
@ -30,327 +31,6 @@ struct {
},
};
typedef struct _TextureBuilder TextureBuilder;
typedef enum {
CHANNEL_UINT_8,
CHANNEL_UINT_16,
CHANNEL_FLOAT_16,
CHANNEL_FLOAT_32,
} ChannelType;
struct _TextureBuilder
{
GdkMemoryFormat format;
int width;
int height;
guchar *pixels;
gsize stride;
gsize offset;
};
static gsize
gdk_memory_format_bytes_per_pixel (GdkMemoryFormat format)
{
switch (format)
{
case GDK_MEMORY_G8:
case GDK_MEMORY_A8:
return 1;
case GDK_MEMORY_G8A8_PREMULTIPLIED:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G16:
case GDK_MEMORY_A16:
case GDK_MEMORY_A16_FLOAT:
return 2;
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_A8B8G8R8_PREMULTIPLIED:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_R8G8B8X8:
case GDK_MEMORY_X8B8G8R8:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_G16A16:
case GDK_MEMORY_A32_FLOAT:
return 4;
case GDK_MEMORY_R16G16B16:
case GDK_MEMORY_R16G16B16_FLOAT:
return 6;
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT:
return 8;
case GDK_MEMORY_R32G32B32_FLOAT:
return 12;
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R32G32B32A32_FLOAT:
return 16;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return 4;
}
}
/* return the number of color channels, ignoring alpha */
static guint
gdk_memory_format_n_colors (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:
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_A8B8G8R8_PREMULTIPLIED:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_R8G8B8X8:
case GDK_MEMORY_X8B8G8R8:
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R32G32B32A32_FLOAT:
return 3;
case GDK_MEMORY_G8:
case GDK_MEMORY_G16:
case GDK_MEMORY_G8A8_PREMULTIPLIED:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_G16A16:
return 1;
case GDK_MEMORY_A8:
case GDK_MEMORY_A16:
case GDK_MEMORY_A16_FLOAT:
case GDK_MEMORY_A32_FLOAT:
return 0;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return TRUE;
}
}
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:
case GDK_MEMORY_G8:
case GDK_MEMORY_G16:
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_R8G8B8X8:
case GDK_MEMORY_X8B8G8R8:
return FALSE;
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_A8B8G8R8_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:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R32G32B32A32_FLOAT:
case GDK_MEMORY_G8A8_PREMULTIPLIED:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_G16A16:
case GDK_MEMORY_A8:
case GDK_MEMORY_A16:
case GDK_MEMORY_A16_FLOAT:
case GDK_MEMORY_A32_FLOAT:
return TRUE;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return TRUE;
}
}
static gboolean
gdk_memory_format_is_premultiplied (GdkMemoryFormat format)
{
switch (format)
{
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_A8B8G8R8_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_G8A8_PREMULTIPLIED:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_A8:
case GDK_MEMORY_A16:
case GDK_MEMORY_A16_FLOAT:
case GDK_MEMORY_A32_FLOAT:
return TRUE;
case GDK_MEMORY_R8G8B8:
case GDK_MEMORY_B8G8R8:
case GDK_MEMORY_R16G16B16:
case GDK_MEMORY_R16G16B16_FLOAT:
case GDK_MEMORY_R32G32B32_FLOAT:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_R8G8B8X8:
case GDK_MEMORY_X8B8G8R8:
case GDK_MEMORY_R16G16B16A16:
case GDK_MEMORY_R16G16B16A16_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT:
case GDK_MEMORY_G8:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G16:
case GDK_MEMORY_G16A16:
return FALSE;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return FALSE;
}
}
static gboolean
gdk_memory_format_pixel_equal (GdkMemoryFormat format,
gboolean accurate,
const guchar *pixel1,
const guchar *pixel2)
{
switch (format)
{
case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
case GDK_MEMORY_A8B8G8R8_PREMULTIPLIED:
case GDK_MEMORY_R8G8B8:
case GDK_MEMORY_B8G8R8:
case GDK_MEMORY_B8G8R8A8:
case GDK_MEMORY_A8R8G8B8:
case GDK_MEMORY_R8G8B8A8:
case GDK_MEMORY_A8B8G8R8:
case GDK_MEMORY_A8:
case GDK_MEMORY_G8:
case GDK_MEMORY_G8A8:
case GDK_MEMORY_G8A8_PREMULTIPLIED:
return memcmp (pixel1, pixel2, gdk_memory_format_bytes_per_pixel (format)) == 0;
case GDK_MEMORY_B8G8R8X8:
case GDK_MEMORY_R8G8B8X8:
return memcmp (pixel1, pixel2, 3) == 0;
case GDK_MEMORY_X8R8G8B8:
case GDK_MEMORY_X8B8G8R8:
return memcmp (pixel1 + 1, pixel2 + 1, 3) == 0;
case GDK_MEMORY_R16G16B16:
case GDK_MEMORY_R16G16B16A16:
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
case GDK_MEMORY_G16:
case GDK_MEMORY_G16A16:
case GDK_MEMORY_G16A16_PREMULTIPLIED:
case GDK_MEMORY_A16:
{
const guint16 *u1 = (const guint16 *) pixel1;
const guint16 *u2 = (const guint16 *) pixel2;
guint i;
for (i = 0; i < gdk_memory_format_bytes_per_pixel (format) / sizeof (guint16); i++)
{
if (!G_APPROX_VALUE (u1[i], u2[i], accurate ? 1 : 256))
return FALSE;
}
}
return TRUE;
case GDK_MEMORY_R16G16B16_FLOAT:
case GDK_MEMORY_R16G16B16A16_FLOAT:
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_A16_FLOAT:
{
guint i;
for (i = 0; i < gdk_memory_format_bytes_per_pixel (format) / sizeof (guint16); i++)
{
float f1 = half_to_float_one (((guint16 *) pixel1)[i]);
float f2 = half_to_float_one (((guint16 *) pixel2)[i]);
if (!G_APPROX_VALUE (f1, f2, accurate ? 1./65535 : 1./255))
return FALSE;
}
}
return TRUE;
case GDK_MEMORY_R32G32B32_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT:
case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
case GDK_MEMORY_A32_FLOAT:
{
const float *f1 = (const float *) pixel1;
const float *f2 = (const float *) pixel2;
guint i;
for (i = 0; i < gdk_memory_format_bytes_per_pixel (format) / sizeof (float); i++)
{
if (!G_APPROX_VALUE (f1[i], f2[i], accurate ? 1./65535 : 1./255))
return FALSE;
}
}
return TRUE;
case GDK_MEMORY_N_FORMATS:
default:
g_assert_not_reached ();
return FALSE;
}
}
static gpointer
encode_renderer_format (guint renderer,
GdkMemoryFormat format)
@ -371,313 +51,6 @@ decode_renderer_format (gconstpointer data,
*format = value;
}
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 * 255.f + 0.5f, 0.f, 255.f);
if (premultiply)
{
data[r] = CLAMP (color->red * color->alpha * 255.f + 0.5f, 0.f, 255.f);
data[g] = CLAMP (color->green * color->alpha * 255.f + 0.5f, 0.f, 255.f);
data[b] = CLAMP (color->blue * color->alpha * 255.f + 0.5f, 0.f, 255.f);
}
else
{
data[r] = CLAMP (color->red * 255.f + 0.5f, 0.f, 255.f);
data[g] = CLAMP (color->green * 255.f + 0.5f, 0.f, 255.f);
data[b] = CLAMP (color->blue * 255.f + 0.5f, 0.f, 255.f);
}
}
static float
color_gray (const GdkRGBA *color)
{
return 1/3.f * (color->red + color->green + color->blue);
}
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_A8B8G8R8_PREMULTIPLIED:
set_pixel_u8 (data, 3, 2, 1, 0, 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_B8G8R8X8:
set_pixel_u8 (data, 2, 1, 0, -1, TRUE, color);
break;
case GDK_MEMORY_X8R8G8B8:
set_pixel_u8 (data, 1, 2, 3, -1, TRUE, color);
break;
case GDK_MEMORY_R8G8B8X8:
set_pixel_u8 (data, 0, 1, 2, -1, TRUE, color);
break;
case GDK_MEMORY_X8B8G8R8:
set_pixel_u8 (data, 3, 2, 1, -1, TRUE, 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 * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->green * color->alpha * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->blue * color->alpha * 65535.f + 0.5f, 0, 65535.f),
};
memcpy (data, pixels, 3 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
{
guint16 pixels[4] = {
CLAMP (color->red * color->alpha * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->green * color->alpha * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->blue * color->alpha * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->alpha * 65535.f + 0.5f, 0, 65535.f),
};
memcpy (data, pixels, 4 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16A16:
{
guint16 pixels[4] = {
CLAMP (color->red * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->green * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->blue * 65535.f + 0.5f, 0, 65535.f),
CLAMP (color->alpha * 65535.f + 0.5f, 0, 65535.f),
};
memcpy (data, pixels, 4 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16_FLOAT:
{
guint16 pixels[3] = {
float_to_half_one (color->red * color->alpha),
float_to_half_one (color->green * color->alpha),
float_to_half_one (color->blue * color->alpha)
};
memcpy (data, pixels, 3 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
{
guint16 pixels[4] = {
float_to_half_one (color->red * color->alpha),
float_to_half_one (color->green * color->alpha),
float_to_half_one (color->blue * color->alpha),
float_to_half_one (color->alpha)
};
memcpy (data, pixels, 4 * sizeof (guint16));
}
break;
case GDK_MEMORY_R16G16B16A16_FLOAT:
{
guint16 pixels[4] = {
float_to_half_one (color->red),
float_to_half_one (color->green),
float_to_half_one (color->blue),
float_to_half_one (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_R32G32B32A32_FLOAT:
{
float pixels[4] = {
color->red,
color->green,
color->blue,
color->alpha
};
memcpy (data, pixels, 4 * sizeof (float));
}
break;
case GDK_MEMORY_G8A8_PREMULTIPLIED:
{
data[0] = CLAMP (color_gray (color) * color->alpha * 255.f + 0.5f, 0.f, 255.f);
data[1] = CLAMP (color->alpha * 255.f + 0.5f, 0.f, 255.f);
}
break;
case GDK_MEMORY_G8A8:
{
data[0] = CLAMP (color_gray (color) * 255.f + 0.5f, 0.f, 255.f);
data[1] = CLAMP (color->alpha * 255.f + 0.5f, 0.f, 255.f);
}
break;
case GDK_MEMORY_G8:
{
*data = CLAMP (color_gray (color) * color->alpha * 255.f + 0.5f, 0.f, 255.f);
}
break;
case GDK_MEMORY_G16A16_PREMULTIPLIED:
{
guint16 pixels[2] = {
CLAMP (color_gray (color) * color->alpha * 65535.f + 0.5f, 0.f, 65535.f),
CLAMP (color->alpha * 65535.f + 0.5f, 0.f, 65535.f),
};
memcpy (data, pixels, 2 * sizeof (guint16));
}
break;
case GDK_MEMORY_G16A16:
{
guint16 pixels[2] = {
CLAMP (color_gray (color) * 65535.f + 0.5f, 0.f, 65535.f),
CLAMP (color->alpha * 65535.f + 0.5f, 0.f, 65535.f),
};
memcpy (data, pixels, 2 * sizeof (guint16));
}
break;
case GDK_MEMORY_G16:
{
guint16 pixel = CLAMP (color_gray (color) * color->alpha * 65535.f + 0.5f, 0.f, 65535.f);
memcpy (data, &pixel, sizeof (guint16));
}
break;
case GDK_MEMORY_A8:
{
*data = CLAMP (color->alpha * 255.f + 0.5f, 0.f, 255.f);
}
break;
case GDK_MEMORY_A16:
{
guint16 pixel = CLAMP (color->alpha * 65535.f, 0.f, 65535.f);
memcpy (data, &pixel, sizeof (guint16));
}
break;
case GDK_MEMORY_A16_FLOAT:
{
guint16 pixel = float_to_half_one (color->alpha);
memcpy (data, &pixel, sizeof (guint16));
}
break;
case GDK_MEMORY_A32_FLOAT:
{
memcpy (data, &color->alpha, 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 *texture1,
GdkTexture *texture2,