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gtk/gdk/gdkmemoryformat.c
Benjamin Otte d97767014c gl: BGRA formats need a different internal format 
In GLES, BGRA is still done by GL_EXT_texture_format_BGRA8888 which is
an extension that is older than GLES 2.0.

And back then, internal formats had to be specified unsized. And when
that was changed with GLES3, nobody updated the extension.
However, on OpenGL, this extension doesn't exist, and internal formats
need to be sized.

So let's use different internal formats depending on GL version.

Fixes #6333
2024-01-16 20:35:20 +01:00

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/*
* Copyright © 2021 Benjamin Otte
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "gdkmemoryformatprivate.h"
#include "gdkdmabuffourccprivate.h"
#include "gdkglcontextprivate.h"
#include "gsk/gl/fp16private.h"
#include <epoxy/gl.h>
typedef struct _GdkMemoryFormatDescription GdkMemoryFormatDescription;
#define TYPED_FUNCS(name, T, R, G, B, A, bpp, scale) \
static void \
name ## _to_float (float *dest, \
const guchar *src_data, \
gsize n) \
{ \
for (gsize i = 0; i < n; i++) \
{ \
T *src = (T *) (src_data + i * bpp); \
dest[0] = (float) src[R] / scale; \
dest[1] = (float) src[G] / scale; \
dest[2] = (float) src[B] / scale; \
if (A >= 0) dest[3] = (float) src[A] / scale; else dest[3] = 1.0; \
dest += 4; \
} \
} \
\
static void \
name ## _from_float (guchar *dest_data, \
const float *src, \
gsize n) \
{ \
for (gsize i = 0; i < n; i++) \
{ \
T *dest = (T *) (dest_data + i * bpp); \
dest[R] = CLAMP (src[0] * scale + 0.5, 0, scale); \
dest[G] = CLAMP (src[1] * scale + 0.5, 0, scale); \
dest[B] = CLAMP (src[2] * scale + 0.5, 0, scale); \
if (A >= 0) dest[A] = CLAMP (src[3] * scale + 0.5, 0, scale); \
src += 4; \
} \
}
#define TYPED_GRAY_FUNCS(name, T, G, A, bpp, scale) \
static void \
name ## _to_float (float *dest, \
const guchar *src_data, \
gsize n) \
{ \
for (gsize i = 0; i < n; i++) \
{ \
T *src = (T *) (src_data + i * bpp); \
if (A >= 0) dest[3] = (float) src[A] / scale; else dest[3] = 1.0; \
if (G >= 0) dest[0] = (float) src[G] / scale; else dest[0] = dest[3]; \
dest[1] = dest[2] = dest[0]; \
dest += 4; \
} \
} \
\
static void \
name ## _from_float (guchar *dest_data, \
const float *src, \
gsize n) \
{ \
for (gsize i = 0; i < n; i++) \
{ \
T *dest = (T *) (dest_data + i * bpp); \
if (G >= 0) dest[G] = CLAMP ((src[0] + src[1] + src[2]) * scale / 3.f + 0.5, 0, scale); \
if (A >= 0) dest[A] = CLAMP (src[3] * scale + 0.5, 0, scale); \
src += 4; \
} \
}
TYPED_FUNCS (b8g8r8a8_premultiplied, guchar, 2, 1, 0, 3, 4, 255)
TYPED_FUNCS (a8r8g8b8_premultiplied, guchar, 1, 2, 3, 0, 4, 255)
TYPED_FUNCS (r8g8b8a8_premultiplied, guchar, 0, 1, 2, 3, 4, 255)
TYPED_FUNCS (a8b8g8r8_premultiplied, guchar, 3, 2, 1, 0, 4, 255)
TYPED_FUNCS (b8g8r8a8, guchar, 2, 1, 0, 3, 4, 255)
TYPED_FUNCS (a8r8g8b8, guchar, 1, 2, 3, 0, 4, 255)
TYPED_FUNCS (r8g8b8a8, guchar, 0, 1, 2, 3, 4, 255)
TYPED_FUNCS (a8b8g8r8, guchar, 3, 2, 1, 0, 4, 255)
TYPED_FUNCS (r8g8b8x8, guchar, 0, 1, 2, -1, 4, 255)
TYPED_FUNCS (x8r8g8b8, guchar, 1, 2, 3, -1, 4, 255)
TYPED_FUNCS (b8g8r8x8, guchar, 2, 1, 0, -1, 4, 255)
TYPED_FUNCS (x8b8g8r8, guchar, 3, 2, 1, -1, 4, 255)
TYPED_FUNCS (r8g8b8, guchar, 0, 1, 2, -1, 3, 255)
TYPED_FUNCS (b8g8r8, guchar, 2, 1, 0, -1, 3, 255)
TYPED_FUNCS (r16g16b16, guint16, 0, 1, 2, -1, 6, 65535)
TYPED_FUNCS (r16g16b16a16, guint16, 0, 1, 2, 3, 8, 65535)
TYPED_GRAY_FUNCS (g8a8_premultiplied, guchar, 0, 1, 2, 255)
TYPED_GRAY_FUNCS (g8a8, guchar, 0, 1, 2, 255)
TYPED_GRAY_FUNCS (g8, guchar, 0, -1, 1, 255)
TYPED_GRAY_FUNCS (a8, guchar, -1, 0, 1, 255)
TYPED_GRAY_FUNCS (g16a16_premultiplied, guint16, 0, 1, 4, 65535)
TYPED_GRAY_FUNCS (g16a16, guint16, 0, 1, 4, 65535)
TYPED_GRAY_FUNCS (g16, guint16, 0, -1, 2, 65535)
TYPED_GRAY_FUNCS (a16, guint16, -1, 0, 2, 65535)
static void
r16g16b16_float_to_float (float *dest,
const guchar *src_data,
gsize n)
{
guint16 *src = (guint16 *) src_data;
for (gsize i = 0; i < n; i++)
{
half_to_float (src, dest, 3);
dest[3] = 1.0;
dest += 4;
src += 3;
}
}
static void
r16g16b16_float_from_float (guchar *dest_data,
const float *src,
gsize n)
{
guint16 *dest = (guint16 *) dest_data;
for (gsize i = 0; i < n; i++)
{
float_to_half (src, dest, 3);
dest += 3;
src += 4;
}
}
static void
r16g16b16a16_float_to_float (float *dest,
const guchar *src,
gsize n)
{
half_to_float ((const guint16 *) src, dest, 4 * n);
}
static void
r16g16b16a16_float_from_float (guchar *dest,
const float *src,
gsize n)
{
float_to_half (src, (guint16 *) dest, 4 * n);
}
static void
a16_float_to_float (float *dest,
const guchar *src_data,
gsize n)
{
const guint16 *src = (const guint16 *) src_data;
for (gsize i = 0; i < n; i++)
{
half_to_float (src, dest, 1);
dest[1] = dest[0];
dest[2] = dest[0];
dest[3] = dest[0];
src++;
dest += 4;
}
}
static void
a16_float_from_float (guchar *dest_data,
const float *src,
gsize n)
{
guint16 *dest = (guint16 *) dest_data;
for (gsize i = 0; i < n; i++)
{
float_to_half (&src[3], dest, 1);
dest ++;
src += 4;
}
}
static void
r32g32b32_float_to_float (float *dest,
const guchar *src_data,
gsize n)
{
float *src = (float *) src_data;
for (gsize i = 0; i < n; i++)
{
dest[0] = src[0];
dest[1] = src[1];
dest[2] = src[2];
dest[3] = 1.0;
dest += 4;
src += 3;
}
}
static void
r32g32b32_float_from_float (guchar *dest_data,
const float *src,
gsize n)
{
float *dest = (float *) dest_data;
for (gsize i = 0; i < n; i++)
{
dest[0] = src[0];
dest[1] = src[1];
dest[2] = src[2];
dest += 3;
src += 4;
}
}
static void
r32g32b32a32_float_to_float (float *dest,
const guchar *src,
gsize n)
{
memcpy (dest, src, sizeof (float) * n * 4);
}
static void
r32g32b32a32_float_from_float (guchar *dest,
const float *src,
gsize n)
{
memcpy (dest, src, sizeof (float) * n * 4);
}
static void
a32_float_to_float (float *dest,
const guchar *src_data,
gsize n)
{
const float *src = (const float *) src_data;
for (gsize i = 0; i < n; i++)
{
dest[0] = src[0];
dest[1] = src[0];
dest[2] = src[0];
dest[3] = src[0];
src++;
dest += 4;
}
}
static void
a32_float_from_float (guchar *dest_data,
const float *src,
gsize n)
{
float *dest = (float *) dest_data;
for (gsize i = 0; i < n; i++)
{
dest[0] = src[3];
dest ++;
src += 4;
}
}
#define PREMULTIPLY_FUNC(name, R1, G1, B1, A1, R2, G2, B2, A2) \
static void \
name (guchar *dest, \
const guchar *src, \
gsize n) \
{ \
for (; n > 0; n--) \
{ \
guchar a = src[A1]; \
guint16 r = (guint16)src[R1] * a + 127; \
guint16 g = (guint16)src[G1] * a + 127; \
guint16 b = (guint16)src[B1] * a + 127; \
dest[R2] = (r + (r >> 8) + 1) >> 8; \
dest[G2] = (g + (g >> 8) + 1) >> 8; \
dest[B2] = (b + (b >> 8) + 1) >> 8; \
dest[A2] = a; \
dest += 4; \
src += 4; \
} \
}
PREMULTIPLY_FUNC(r8g8b8a8_to_r8g8b8a8_premultiplied, 0, 1, 2, 3, 0, 1, 2, 3)
PREMULTIPLY_FUNC(r8g8b8a8_to_b8g8r8a8_premultiplied, 0, 1, 2, 3, 2, 1, 0, 3)
PREMULTIPLY_FUNC(r8g8b8a8_to_a8r8g8b8_premultiplied, 0, 1, 2, 3, 1, 2, 3, 0)
PREMULTIPLY_FUNC(r8g8b8a8_to_a8b8g8r8_premultiplied, 0, 1, 2, 3, 3, 2, 1, 0)
#define ADD_ALPHA_FUNC(name, R1, G1, B1, R2, G2, B2, A2) \
static void \
name (guchar *dest, \
const guchar *src, \
gsize n) \
{ \
for (; n > 0; n--) \
{ \
dest[R2] = src[R1]; \
dest[G2] = src[G1]; \
dest[B2] = src[B1]; \
dest[A2] = 255; \
dest += 4; \
src += 3; \
} \
}
ADD_ALPHA_FUNC(r8g8b8_to_r8g8b8a8, 0, 1, 2, 0, 1, 2, 3)
ADD_ALPHA_FUNC(r8g8b8_to_b8g8r8a8, 0, 1, 2, 2, 1, 0, 3)
ADD_ALPHA_FUNC(r8g8b8_to_a8r8g8b8, 0, 1, 2, 1, 2, 3, 0)
ADD_ALPHA_FUNC(r8g8b8_to_a8b8g8r8, 0, 1, 2, 3, 2, 1, 0)
struct _GdkMemoryFormatDescription
{
GdkMemoryAlpha alpha;
GdkMemoryFormat premultiplied;
GdkMemoryFormat straight;
gsize bytes_per_pixel;
gsize alignment;
GdkMemoryDepth depth;
const GdkMemoryFormat *fallbacks;
struct {
GLint internal_gl_format;
GLint internal_gles_format;
GLenum format;
GLenum type;
GLint swizzle[4];
/* -1 if none exists, ie the format is already RGBA
* or the format doesn't have 4 channels */
GdkMemoryFormat rgba_format;
GLint rgba_swizzle[4];
} gl;
#ifdef GDK_RENDERING_VULKAN
VkFormat vk_format;
#endif
#ifdef HAVE_DMABUF
guint32 dmabuf_fourcc;
#endif
/* no premultiplication going on here */
void (* to_float) (float *, const guchar*, gsize);
void (* from_float) (guchar *, const float *, gsize);
};
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
# define GDK_GL_UNSIGNED_BYTE_FLIPPED GL_UNSIGNED_INT_8_8_8_8
#elif G_BYTE_ORDER == G_BIG_ENDIAN
# define GDK_GL_UNSIGNED_BYTE_FLIPPED GL_UNSIGNED_INT_8_8_8_8_REV
#else
# error "Define the right GL flags here"
#endif
static const GdkMemoryFormatDescription memory_formats[] = {
[GDK_MEMORY_B8G8R8A8_PREMULTIPLIED] = {
.alpha = GDK_MEMORY_ALPHA_PREMULTIPLIED,
.premultiplied = GDK_MEMORY_B8G8R8A8_PREMULTIPLIED,
.straight = GDK_MEMORY_B8G8R8A8,
.bytes_per_pixel = 4,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
-1,
},
.gl = {
.internal_gl_format = GL_RGBA8,
.internal_gles_format = GL_BGRA,
.format = GL_BGRA,
.type = GL_UNSIGNED_BYTE,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
.rgba_swizzle = { GL_BLUE, GL_GREEN, GL_RED, GL_ALPHA },
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_B8G8R8A8_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_ARGB8888,
#endif
.to_float = b8g8r8a8_premultiplied_to_float,
.from_float = b8g8r8a8_premultiplied_from_float,
},
[GDK_MEMORY_A8R8G8B8_PREMULTIPLIED] = {
.alpha = GDK_MEMORY_ALPHA_PREMULTIPLIED,
.premultiplied = GDK_MEMORY_A8R8G8B8_PREMULTIPLIED,
.straight = GDK_MEMORY_A8R8G8B8,
.bytes_per_pixel = 4,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
-1,
},
.gl = {
.internal_gl_format = GL_RGBA8,
.internal_gles_format = GL_RGBA8,
.format = GL_BGRA,
.type = GDK_GL_UNSIGNED_BYTE_FLIPPED,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
.rgba_swizzle = { GL_GREEN, GL_BLUE, GL_ALPHA, GL_RED },
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_UNDEFINED,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_BGRA8888,
#endif
.to_float = a8r8g8b8_premultiplied_to_float,
.from_float = a8r8g8b8_premultiplied_from_float,
},
[GDK_MEMORY_R8G8B8A8_PREMULTIPLIED] = {
.alpha = GDK_MEMORY_ALPHA_PREMULTIPLIED,
.premultiplied = GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
.straight = GDK_MEMORY_R8G8B8A8,
.bytes_per_pixel = 4,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
-1,
},
.gl = {
.internal_gl_format = GL_RGBA8,
.internal_gles_format = GL_RGBA8,
.format = GL_RGBA,
.type = GL_UNSIGNED_BYTE,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R8G8B8A8_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_ABGR8888,
#endif
.to_float = r8g8b8a8_premultiplied_to_float,
.from_float = r8g8b8a8_premultiplied_from_float,
},
[GDK_MEMORY_A8B8G8R8_PREMULTIPLIED] = {
.alpha = GDK_MEMORY_ALPHA_PREMULTIPLIED,
.premultiplied = GDK_MEMORY_A8B8G8R8_PREMULTIPLIED,
.straight = GDK_MEMORY_A8B8G8R8,
.bytes_per_pixel = 4,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
-1,
},
.gl = {
.internal_gl_format = GL_RGBA8,
.internal_gles_format = GL_RGBA8,
.format = GL_RGBA,
.type = GDK_GL_UNSIGNED_BYTE_FLIPPED,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
.rgba_swizzle = { GL_ALPHA, GL_BLUE, GL_GREEN, GL_RED },
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_UNDEFINED,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_RGBA8888,
#endif
.to_float = a8b8g8r8_premultiplied_to_float,
.from_float = a8b8g8r8_premultiplied_from_float,
},
[GDK_MEMORY_B8G8R8A8] = {
.alpha = GDK_MEMORY_ALPHA_STRAIGHT,
.premultiplied = GDK_MEMORY_B8G8R8A8_PREMULTIPLIED,
.straight = GDK_MEMORY_B8G8R8A8,
.bytes_per_pixel = 4,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
-1,
},
.gl = {
.internal_gl_format = GL_RGBA8,
.internal_gles_format = GL_BGRA,
.format = GL_BGRA,
.type = GL_UNSIGNED_BYTE,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = GDK_MEMORY_R8G8B8A8,
.rgba_swizzle = { GL_BLUE, GL_GREEN, GL_RED, GL_ALPHA },
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_B8G8R8A8_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_ARGB8888,
#endif
.to_float = b8g8r8a8_to_float,
.from_float = b8g8r8a8_from_float,
},
[GDK_MEMORY_A8R8G8B8] = {
.alpha = GDK_MEMORY_ALPHA_STRAIGHT,
.premultiplied = GDK_MEMORY_A8R8G8B8_PREMULTIPLIED,
.straight = GDK_MEMORY_A8R8G8B8,
.bytes_per_pixel = 4,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
-1,
},
.gl = {
.internal_gl_format = GL_RGBA8,
.internal_gles_format = GL_RGBA8,
.format = GL_BGRA,
.type = GDK_GL_UNSIGNED_BYTE_FLIPPED,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = GDK_MEMORY_R8G8B8A8,
.rgba_swizzle = { GL_GREEN, GL_BLUE, GL_ALPHA, GL_RED },
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_UNDEFINED,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_BGRA8888,
#endif
.to_float = a8r8g8b8_to_float,
.from_float = a8r8g8b8_from_float,
},
[GDK_MEMORY_R8G8B8A8] = {
.alpha = GDK_MEMORY_ALPHA_STRAIGHT,
.premultiplied = GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
.straight = GDK_MEMORY_R8G8B8A8,
.bytes_per_pixel = 4,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
-1,
},
.gl = {
.internal_gl_format = GL_RGBA8,
.internal_gles_format = GL_RGBA8,
.format = GL_RGBA,
.type = GL_UNSIGNED_BYTE,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R8G8B8A8_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_ABGR8888,
#endif
.to_float = r8g8b8a8_to_float,
.from_float = r8g8b8a8_from_float,
},
[GDK_MEMORY_A8B8G8R8] = {
.alpha = GDK_MEMORY_ALPHA_STRAIGHT,
.premultiplied = GDK_MEMORY_A8B8G8R8_PREMULTIPLIED,
.straight = GDK_MEMORY_A8B8G8R8,
.bytes_per_pixel = 4,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
-1,
},
.gl = {
.internal_gl_format = GL_RGBA8,
.internal_gles_format = GL_RGBA8,
.format = GL_RGBA,
.type = GDK_GL_UNSIGNED_BYTE_FLIPPED,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = GDK_MEMORY_R8G8B8A8,
.rgba_swizzle = { GL_ALPHA, GL_BLUE, GL_GREEN, GL_RED },
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_UNDEFINED,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_RGBA8888,
#endif
.to_float = a8b8g8r8_to_float,
.from_float = a8b8g8r8_from_float,
},
[GDK_MEMORY_B8G8R8X8] = {
.alpha = GDK_MEMORY_ALPHA_OPAQUE,
.premultiplied = GDK_MEMORY_B8G8R8X8,
.straight = GDK_MEMORY_B8G8R8X8,
.bytes_per_pixel = 4,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_RGBA8,
.internal_gles_format = GL_BGRA,
.format = GL_BGRA,
.type = GL_UNSIGNED_BYTE,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ONE },
.rgba_format = GDK_MEMORY_R8G8B8X8,
.rgba_swizzle = { GL_BLUE, GL_GREEN, GL_RED, GL_ONE },
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_B8G8R8A8_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_XRGB8888,
#endif
.to_float = b8g8r8x8_to_float,
.from_float = b8g8r8x8_from_float,
},
[GDK_MEMORY_X8R8G8B8] = {
.alpha = GDK_MEMORY_ALPHA_OPAQUE,
.premultiplied = GDK_MEMORY_X8R8G8B8,
.straight = GDK_MEMORY_X8R8G8B8,
.bytes_per_pixel = 4,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_RGBA8,
.internal_gles_format = GL_RGBA8,
.format = GL_BGRA,
.type = GDK_GL_UNSIGNED_BYTE_FLIPPED,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ONE },
.rgba_format = GDK_MEMORY_R8G8B8A8,
.rgba_swizzle = { GL_GREEN, GL_BLUE, GL_ALPHA, GL_ONE },
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_UNDEFINED,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_BGRX8888,
#endif
.to_float = x8r8g8b8_to_float,
.from_float = x8r8g8b8_from_float,
},
[GDK_MEMORY_R8G8B8X8] = {
.alpha = GDK_MEMORY_ALPHA_OPAQUE,
.premultiplied = GDK_MEMORY_R8G8B8X8,
.straight = GDK_MEMORY_R8G8B8X8,
.bytes_per_pixel = 4,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_RGBA8,
.internal_gles_format = GL_RGBA8,
.format = GL_RGBA,
.type = GL_UNSIGNED_BYTE,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ONE },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R8G8B8A8_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_XBGR8888,
#endif
.to_float = r8g8b8x8_to_float,
.from_float = r8g8b8x8_from_float,
},
[GDK_MEMORY_X8B8G8R8] = {
.alpha = GDK_MEMORY_ALPHA_OPAQUE,
.premultiplied = GDK_MEMORY_X8B8G8R8,
.straight = GDK_MEMORY_X8B8G8R8,
.bytes_per_pixel = 4,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_RGBA8,
.internal_gles_format = GL_RGBA8,
.format = GL_RGBA,
.type = GDK_GL_UNSIGNED_BYTE_FLIPPED,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ONE },
.rgba_format = GDK_MEMORY_R8G8B8A8,
.rgba_swizzle = { GL_ALPHA, GL_BLUE, GL_GREEN, GL_ONE },
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_UNDEFINED,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_RGBX8888,
#endif
.to_float = x8b8g8r8_to_float,
.from_float = x8b8g8r8_from_float,
},
[GDK_MEMORY_R8G8B8] = {
.alpha = GDK_MEMORY_ALPHA_OPAQUE,
.premultiplied = GDK_MEMORY_R8G8B8,
.straight = GDK_MEMORY_R8G8B8,
.bytes_per_pixel = 3,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_RGB8,
.internal_gles_format = GL_RGB8,
.format = GL_RGB,
.type = GL_UNSIGNED_BYTE,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R8G8B8_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_BGR888,
#endif
.to_float = r8g8b8_to_float,
.from_float = r8g8b8_from_float,
},
[GDK_MEMORY_B8G8R8] = {
.alpha = GDK_MEMORY_ALPHA_OPAQUE,
.premultiplied = GDK_MEMORY_B8G8R8,
.straight = GDK_MEMORY_B8G8R8,
.bytes_per_pixel = 3,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_RGB8,
.internal_gles_format = GL_RGB8,
.format = GL_BGR,
.type = GL_UNSIGNED_BYTE,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = GDK_MEMORY_R8G8B8,
.rgba_swizzle = { GL_BLUE, GL_GREEN, GL_RED, GL_ALPHA },
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_B8G8R8_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_RGB888,
#endif
.to_float = b8g8r8_to_float,
.from_float = b8g8r8_from_float,
},
[GDK_MEMORY_R16G16B16] = {
.alpha = GDK_MEMORY_ALPHA_OPAQUE,
.premultiplied = GDK_MEMORY_R16G16B16,
.straight = GDK_MEMORY_R16G16B16,
.bytes_per_pixel = 6,
.alignment = G_ALIGNOF (guint16),
.depth = GDK_MEMORY_U16,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R16G16B16A16_PREMULTIPLIED,
GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_RGB16,
.internal_gles_format = GL_RGB16,
.format = GL_RGB,
.type = GL_UNSIGNED_SHORT,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R16G16B16_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = 0,
#endif
.to_float = r16g16b16_to_float,
.from_float = r16g16b16_from_float,
},
[GDK_MEMORY_R16G16B16A16_PREMULTIPLIED] = {
.alpha = GDK_MEMORY_ALPHA_PREMULTIPLIED,
.premultiplied = GDK_MEMORY_R16G16B16A16_PREMULTIPLIED,
.straight = GDK_MEMORY_R16G16B16A16,
.bytes_per_pixel = 8,
.alignment = G_ALIGNOF (guint16),
.depth = GDK_MEMORY_U16,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_RGBA16,
.internal_gles_format = GL_RGBA16,
.format = GL_RGBA,
.type = GL_UNSIGNED_SHORT,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R16G16B16A16_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_ABGR16161616,
#endif
.to_float = r16g16b16a16_to_float,
.from_float = r16g16b16a16_from_float,
},
[GDK_MEMORY_R16G16B16A16] = {
.alpha = GDK_MEMORY_ALPHA_STRAIGHT,
.premultiplied = GDK_MEMORY_R16G16B16A16_PREMULTIPLIED,
.straight = GDK_MEMORY_R16G16B16A16,
.bytes_per_pixel = 8,
.alignment = G_ALIGNOF (guint16),
.depth = GDK_MEMORY_U16,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R32G32B32A32_FLOAT,
GDK_MEMORY_R16G16B16A16_FLOAT,
GDK_MEMORY_R8G8B8A8,
-1,
},
.gl = {
.internal_gl_format = GL_RGBA16,
.internal_gles_format = GL_RGBA16,
.format = GL_RGBA,
.type = GL_UNSIGNED_SHORT,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R16G16B16A16_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_ABGR16161616,
#endif
.to_float = r16g16b16a16_to_float,
.from_float = r16g16b16a16_from_float,
},
[GDK_MEMORY_R16G16B16_FLOAT] = {
.alpha = GDK_MEMORY_ALPHA_OPAQUE,
.premultiplied = GDK_MEMORY_R16G16B16_FLOAT,
.straight = GDK_MEMORY_R16G16B16_FLOAT,
.bytes_per_pixel = 6,
.alignment = G_ALIGNOF (guint16),
.depth = GDK_MEMORY_FLOAT16,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_RGB16F,
.internal_gles_format = GL_RGB16F,
.format = GL_RGB,
.type = GL_HALF_FLOAT,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R16G16B16_SFLOAT,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = 0,
#endif
.to_float = r16g16b16_float_to_float,
.from_float = r16g16b16_float_from_float,
},
[GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED] = {
.alpha = GDK_MEMORY_ALPHA_PREMULTIPLIED,
.premultiplied = GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED,
.straight = GDK_MEMORY_R16G16B16A16_FLOAT,
.bytes_per_pixel = 8,
.alignment = G_ALIGNOF (guint16),
.depth = GDK_MEMORY_FLOAT16,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_RGBA16F,
.internal_gles_format = GL_RGBA16F,
.format = GL_RGBA,
.type = GL_HALF_FLOAT,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R16G16B16A16_SFLOAT,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_ABGR16161616F,
#endif
.to_float = r16g16b16a16_float_to_float,
.from_float = r16g16b16a16_float_from_float,
},
[GDK_MEMORY_R16G16B16A16_FLOAT] = {
.alpha = GDK_MEMORY_ALPHA_STRAIGHT,
.premultiplied = GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED,
.straight = GDK_MEMORY_R16G16B16A16_FLOAT,
.bytes_per_pixel = 8,
.alignment = G_ALIGNOF (guint16),
.depth = GDK_MEMORY_FLOAT16,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R32G32B32A32_FLOAT,
GDK_MEMORY_R8G8B8A8,
-1,
},
.gl = {
.internal_gl_format = GL_RGBA16F,
.internal_gles_format = GL_RGBA16F,
.format = GL_RGBA,
.type = GL_HALF_FLOAT,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R16G16B16A16_SFLOAT,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_ABGR16161616F,
#endif
.to_float = r16g16b16a16_float_to_float,
.from_float = r16g16b16a16_float_from_float,
},
[GDK_MEMORY_R32G32B32_FLOAT] = {
.alpha = GDK_MEMORY_ALPHA_OPAQUE,
.premultiplied = GDK_MEMORY_R32G32B32_FLOAT,
.straight = GDK_MEMORY_R32G32B32_FLOAT,
12,
.alignment = G_ALIGNOF (float),
.depth = GDK_MEMORY_FLOAT32,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_RGB32F,
.internal_gles_format = GL_RGB32F,
.format = GL_RGB,
.type = GL_FLOAT,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R32G32B32_SFLOAT,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = 0,
#endif
.to_float = r32g32b32_float_to_float,
.from_float = r32g32b32_float_from_float,
},
[GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED] = {
.alpha = GDK_MEMORY_ALPHA_PREMULTIPLIED,
.premultiplied = GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED,
.straight = GDK_MEMORY_R32G32B32A32_FLOAT,
16,
.alignment = G_ALIGNOF (float),
.depth = GDK_MEMORY_FLOAT32,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_RGBA32F,
.internal_gles_format = GL_RGBA32F,
.format = GL_RGBA,
.type = GL_FLOAT,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R32G32B32A32_SFLOAT,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = 0,
#endif
.to_float = r32g32b32a32_float_to_float,
.from_float = r32g32b32a32_float_from_float,
},
[GDK_MEMORY_R32G32B32A32_FLOAT] = {
.alpha = GDK_MEMORY_ALPHA_STRAIGHT,
.premultiplied = GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED,
.straight = GDK_MEMORY_R32G32B32A32_FLOAT,
16,
.alignment = G_ALIGNOF (float),
.depth = GDK_MEMORY_FLOAT32,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R16G16B16A16_FLOAT,
GDK_MEMORY_R8G8B8A8,
-1,
},
.gl = {
.internal_gl_format = GL_RGBA32F,
.internal_gles_format = GL_RGBA32F,
.format = GL_RGBA,
.type = GL_FLOAT,
.swizzle = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R32G32B32A32_SFLOAT,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = 0,
#endif
.to_float = r32g32b32a32_float_to_float,
.from_float = r32g32b32a32_float_from_float,
},
[GDK_MEMORY_G8A8_PREMULTIPLIED] = {
.alpha = GDK_MEMORY_ALPHA_PREMULTIPLIED,
.premultiplied = GDK_MEMORY_G8A8_PREMULTIPLIED,
.straight = GDK_MEMORY_G8A8,
.bytes_per_pixel = 2,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_RG8,
.internal_gles_format = GL_RG8,
.format = GL_RG,
.type = GL_UNSIGNED_BYTE,
.swizzle = { GL_RED, GL_RED, GL_RED, GL_GREEN },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R8G8_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = 0,
#endif
.to_float = g8a8_premultiplied_to_float,
.from_float = g8a8_premultiplied_from_float,
},
[GDK_MEMORY_G8A8] = {
.alpha = GDK_MEMORY_ALPHA_STRAIGHT,
.premultiplied = GDK_MEMORY_G8A8_PREMULTIPLIED,
.straight = GDK_MEMORY_G8A8,
.bytes_per_pixel = 2,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R8G8B8A8,
-1,
},
.gl = {
.internal_gl_format = GL_RG8,
.internal_gles_format = GL_RG8,
.format = GL_RG,
.type = GL_UNSIGNED_BYTE,
.swizzle = { GL_RED, GL_RED, GL_RED, GL_GREEN },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R8G8_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = 0,
#endif
.to_float = g8a8_to_float,
.from_float = g8a8_from_float,
},
[GDK_MEMORY_G8] = {
.alpha = GDK_MEMORY_ALPHA_OPAQUE,
.premultiplied = GDK_MEMORY_G8,
.straight = GDK_MEMORY_G8,
.bytes_per_pixel = 1,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_R8,
.internal_gles_format = GL_R8,
.format = GL_RED,
.type = GL_UNSIGNED_BYTE,
.swizzle = { GL_RED, GL_RED, GL_RED, GL_ONE },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R8_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_R8,
#endif
.to_float = g8_to_float,
.from_float = g8_from_float,
},
[GDK_MEMORY_G16A16_PREMULTIPLIED] = {
.alpha = GDK_MEMORY_ALPHA_PREMULTIPLIED,
.premultiplied = GDK_MEMORY_G16A16_PREMULTIPLIED,
.straight = GDK_MEMORY_G16A16,
.bytes_per_pixel = 4,
.alignment = G_ALIGNOF (guint16),
.depth = GDK_MEMORY_U16,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R16G16B16A16_PREMULTIPLIED,
GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_RG16,
.internal_gles_format = GL_RG16,
.format = GL_RG,
.type = GL_UNSIGNED_SHORT,
.swizzle = { GL_RED, GL_RED, GL_RED, GL_GREEN },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R16G16_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = 0,
#endif
.to_float = g16a16_premultiplied_to_float,
.from_float = g16a16_premultiplied_from_float,
},
[GDK_MEMORY_G16A16] = {
.alpha = GDK_MEMORY_ALPHA_STRAIGHT,
.premultiplied = GDK_MEMORY_G16A16_PREMULTIPLIED,
.straight = GDK_MEMORY_G16A16,
.bytes_per_pixel = 4,
.alignment = G_ALIGNOF (guint16),
.depth = GDK_MEMORY_U16,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R16G16B16A16,
GDK_MEMORY_R32G32B32A32_FLOAT,
GDK_MEMORY_R16G16B16A16_FLOAT,
GDK_MEMORY_R8G8B8A8,
-1,
},
.gl = {
.internal_gl_format = GL_RG16,
.internal_gles_format = GL_RG16,
.format = GL_RG,
.type = GL_UNSIGNED_SHORT,
.swizzle = { GL_RED, GL_RED, GL_RED, GL_GREEN },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R16G16_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = 0,
#endif
.to_float = g16a16_to_float,
.from_float = g16a16_from_float,
},
[GDK_MEMORY_G16] = {
.alpha = GDK_MEMORY_ALPHA_OPAQUE,
.premultiplied = GDK_MEMORY_G16,
.straight = GDK_MEMORY_G16,
.bytes_per_pixel = 2,
.alignment = G_ALIGNOF (guint16),
.depth = GDK_MEMORY_U16,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R16G16B16A16_PREMULTIPLIED,
GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_R16,
.internal_gles_format = GL_R16,
.format = GL_RED,
.type = GL_UNSIGNED_SHORT,
.swizzle = { GL_RED, GL_RED, GL_RED, GL_ONE },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R16_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = DRM_FORMAT_R16,
#endif
.to_float = g16_to_float,
.from_float = g16_from_float,
},
[GDK_MEMORY_A8] = {
.alpha = GDK_MEMORY_ALPHA_PREMULTIPLIED,
.premultiplied = GDK_MEMORY_A8,
.straight = GDK_MEMORY_A8,
.bytes_per_pixel = 1,
.alignment = G_ALIGNOF (guchar),
.depth = GDK_MEMORY_U8,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_R8,
.internal_gles_format = GL_R8,
.format = GL_RED,
.type = GL_UNSIGNED_BYTE,
.swizzle = { GL_RED, GL_RED, GL_RED, GL_RED },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R8_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = 0,
#endif
.to_float = a8_to_float,
.from_float = a8_from_float,
},
[GDK_MEMORY_A16] = {
.alpha = GDK_MEMORY_ALPHA_PREMULTIPLIED,
.premultiplied = GDK_MEMORY_A16,
.straight = GDK_MEMORY_A16,
.bytes_per_pixel = 2,
.alignment = G_ALIGNOF (guint16),
.depth = GDK_MEMORY_U16,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R16G16B16A16_PREMULTIPLIED,
GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_R16,
.internal_gles_format = GL_R16,
.format = GL_RED,
.type = GL_UNSIGNED_SHORT,
.swizzle = { GL_RED, GL_RED, GL_RED, GL_RED },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R16_UNORM,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = 0,
#endif
.to_float = a16_to_float,
.from_float = a16_from_float,
},
[GDK_MEMORY_A16_FLOAT] = {
.alpha = GDK_MEMORY_ALPHA_PREMULTIPLIED,
.premultiplied = GDK_MEMORY_A16_FLOAT,
.straight = GDK_MEMORY_A16_FLOAT,
.bytes_per_pixel = 2,
.alignment = G_ALIGNOF (guint16),
.depth = GDK_MEMORY_FLOAT16,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_R16F,
.internal_gles_format = GL_R16F,
.format = GL_RED,
.type = GL_HALF_FLOAT,
.swizzle = { GL_RED, GL_RED, GL_RED, GL_RED },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R16_SFLOAT,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = 0,
#endif
.to_float = a16_float_to_float,
.from_float = a16_float_from_float,
},
[GDK_MEMORY_A32_FLOAT] = {
.alpha = GDK_MEMORY_ALPHA_PREMULTIPLIED,
.premultiplied = GDK_MEMORY_A32_FLOAT,
.straight = GDK_MEMORY_A32_FLOAT,
.bytes_per_pixel = 4,
.alignment = G_ALIGNOF (float),
.depth = GDK_MEMORY_FLOAT32,
.fallbacks = (GdkMemoryFormat[]) {
GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED,
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-1,
},
.gl = {
.internal_gl_format = GL_R32F,
.internal_gles_format = GL_R32F,
.format = GL_RED,
.type = GL_FLOAT,
.swizzle = { GL_RED, GL_RED, GL_RED, GL_RED },
.rgba_format = -1,
},
#ifdef GDK_RENDERING_VULKAN
.vk_format = VK_FORMAT_R32_SFLOAT,
#endif
#ifdef HAVE_DMABUF
.dmabuf_fourcc = 0,
#endif
.to_float = a32_float_to_float,
.from_float = a32_float_from_float,
}
};
/* if this fails, somebody forgot to add formats above */
G_STATIC_ASSERT (G_N_ELEMENTS (memory_formats) == GDK_MEMORY_N_FORMATS);
gsize
gdk_memory_format_bytes_per_pixel (GdkMemoryFormat format)
{
return memory_formats[format].bytes_per_pixel;
}
GdkMemoryAlpha
gdk_memory_format_alpha (GdkMemoryFormat format)
{
return memory_formats[format].alpha;
}
GdkMemoryFormat
gdk_memory_format_get_premultiplied (GdkMemoryFormat format)
{
return memory_formats[format].premultiplied;
}
GdkMemoryFormat
gdk_memory_format_get_straight (GdkMemoryFormat format)
{
return memory_formats[format].straight;
}
gsize
gdk_memory_format_alignment (GdkMemoryFormat format)
{
return memory_formats[format].alignment;
}
/*
* gdk_memory_format_get_fallbacks:
* @format: a format
*
* Gets a list of fallback formats to use for @format.
*
* These formats are RGBA formats that ideally have a higher depth
* than the given format. They will always include a guaranteed
* supported format though, even if it is of lower quality (unless
* @format is already guaranteed supported).
*
* Fallbacks will use the same alpha format, ie a premultiplied
* format will never fall back to a straight alpha format and
* vice versa. Either may fall back to an opaque format. Opaque
* formats will fall back to premultiplied formats only.
*
* Use gdk_memory_format_get_premultiplied() and
* gdk_memory_format_get_straight() to transition between
* premultiplied and straight alpha if you need to.
*
* Use gdk_memory_format_gl_rgba_format() to get an equivalent RGBA
* format and swizzle.
*
* The expected order of operation when looking for supported formats
* is the following:
*
* 1. Try the format itself
* 2. If swizzling is supported, try the RGBA format with swizzling
* 3. If swizzling is not supported, try the RGBA without swizzling,
* and with CPU conversion
* 4. Try fallback formats
*
* Returns: A list of fallbacks, terminated with -1
**/
const GdkMemoryFormat *
gdk_memory_format_get_fallbacks (GdkMemoryFormat format)
{
return memory_formats[format].fallbacks;
}
/*<private>
* gdk_memory_format_get_depth:
* @format: a memory format
*
* Gets the depth of the individual channels of the format.
* See gsk_render_node_prefers_high_depth() for more
* information on this.
*
* Usually renderers want to use higher depth for render
* targets to match these formats.
*
* Returns: The depth of this format
**/
GdkMemoryDepth
gdk_memory_format_get_depth (GdkMemoryFormat format)
{
return memory_formats[format].depth;
}
/*<private>
* gdk_memory_depth_merge:
* @depth1: the first depth
* @depth2: the second depth
*
* Returns a depth that can accommodate both given depths
* without any loss of precision.
*
* Returns: The merged depth
**/
GdkMemoryDepth
gdk_memory_depth_merge (GdkMemoryDepth depth1,
GdkMemoryDepth depth2)
{
switch (depth1)
{
case GDK_MEMORY_U8:
return depth2;
case GDK_MEMORY_FLOAT32:
return GDK_MEMORY_FLOAT32;
case GDK_MEMORY_U16:
case GDK_MEMORY_FLOAT16:
if (depth2 == depth1 || depth2 == GDK_MEMORY_U8)
return depth1;
else
return GDK_MEMORY_FLOAT32;
default:
g_assert_not_reached ();
return GDK_MEMORY_U8;
}
}
/*
* gdk_memory_depth_get_format:
* @depth: the depth
*
* Gets the preferred format to use for rendering at the
* given depth
*
* Returns: the format
**/
GdkMemoryFormat
gdk_memory_depth_get_format (GdkMemoryDepth depth)
{
switch (depth)
{
case GDK_MEMORY_U8:
return GDK_MEMORY_R8G8B8A8_PREMULTIPLIED;
case GDK_MEMORY_U16:
return GDK_MEMORY_R16G16B16A16_PREMULTIPLIED;
case GDK_MEMORY_FLOAT16:
return GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED;
case GDK_MEMORY_FLOAT32:
return GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED;
default:
g_return_val_if_reached (GDK_MEMORY_R8G8B8A8_PREMULTIPLIED);
}
}
/*
* gdk_memory_depth_get_alpha_format:
* @depth: the depth
*
* Gets the preferred format to use for rendering masks and other
* alpha-only content.
*
* Returns: the format
**/
GdkMemoryFormat
gdk_memory_depth_get_alpha_format (GdkMemoryDepth depth)
{
switch (depth)
{
case GDK_MEMORY_U8:
return GDK_MEMORY_A8;
case GDK_MEMORY_U16:
return GDK_MEMORY_A16;
case GDK_MEMORY_FLOAT16:
return GDK_MEMORY_A16_FLOAT;
case GDK_MEMORY_FLOAT32:
return GDK_MEMORY_A32_FLOAT;
default:
g_return_val_if_reached (GDK_MEMORY_A8);
}
}
void
gdk_memory_format_gl_format (GdkMemoryFormat format,
gboolean gles,
GLint *out_internal_format,
GLenum *out_format,
GLenum *out_type,
GLint out_swizzle[4])
{
if (gles)
*out_internal_format = memory_formats[format].gl.internal_gles_format;
else
*out_internal_format = memory_formats[format].gl.internal_gl_format;
*out_format = memory_formats[format].gl.format;
*out_type = memory_formats[format].gl.type;
memcpy (out_swizzle, memory_formats[format].gl.swizzle, sizeof(GLint) * 4);
}
/*
* gdk_memory_format_gl_rgba_format:
* @format: The format to query
* @gles: TRUE for GLES, FALSE for GL
* @out_actual_format: The actual RGBA format
* @out_internal_format: the GL internal format
* @out_format: the GL format
* @out_type: the GL type
* @out_swizzle: The swizzle to use
*
* Maps the given format to a GL format that uses RGBA and uses swizzling,
* as opposed to trying to find a GL format that is swapped in the right
* direction.
*
* This format is guaranteed equivalent in memory layout to the original
* format, so uploading/downloading code can treat them the same.
*
* Returns: %TRUE if the format exists and is different from the given format.
**/
gboolean
gdk_memory_format_gl_rgba_format (GdkMemoryFormat format,
gboolean gles,
GdkMemoryFormat *out_actual_format,
GLint *out_internal_format,
GLenum *out_format,
GLenum *out_type,
GLint out_swizzle[4])
{
GdkMemoryFormat actual = memory_formats[format].gl.rgba_format;
if (actual == -1)
return FALSE;
*out_actual_format = actual;
if (gles)
*out_internal_format = memory_formats[actual].gl.internal_gles_format;
else
*out_internal_format = memory_formats[actual].gl.internal_gl_format;
*out_format = memory_formats[actual].gl.format;
*out_type = memory_formats[actual].gl.type;
memcpy (out_swizzle, memory_formats[format].gl.rgba_swizzle, sizeof(GLint) * 4);
return TRUE;
}
#ifdef GDK_RENDERING_VULKAN
static VkComponentSwizzle
vk_swizzle_from_gl_swizzle_one (GLint swizzle)
{
switch (swizzle)
{
case GL_RED:
return VK_COMPONENT_SWIZZLE_R;
case GL_GREEN:
return VK_COMPONENT_SWIZZLE_G;
case GL_BLUE:
return VK_COMPONENT_SWIZZLE_B;
case GL_ALPHA:
return VK_COMPONENT_SWIZZLE_A;
case GL_ZERO:
return VK_COMPONENT_SWIZZLE_ZERO;
case GL_ONE:
return VK_COMPONENT_SWIZZLE_ONE;
default:
g_assert_not_reached ();
return VK_COMPONENT_SWIZZLE_IDENTITY;
}
}
static void
vk_swizzle_from_gl_swizzle (VkComponentMapping *vk_swizzle,
const GLint gl_swizzle[4])
{
vk_swizzle->r = vk_swizzle_from_gl_swizzle_one (gl_swizzle[0]);
vk_swizzle->g = vk_swizzle_from_gl_swizzle_one (gl_swizzle[1]);
vk_swizzle->b = vk_swizzle_from_gl_swizzle_one (gl_swizzle[2]);
vk_swizzle->a = vk_swizzle_from_gl_swizzle_one (gl_swizzle[3]);
}
/* Vulkan version of gdk_memory_format_gl_format()
* Returns VK_FORMAT_UNDEFINED on failure */
VkFormat
gdk_memory_format_vk_format (GdkMemoryFormat format,
VkComponentMapping *out_swizzle)
{
if (out_swizzle)
vk_swizzle_from_gl_swizzle (out_swizzle, memory_formats[format].gl.swizzle);
return memory_formats[format].vk_format;
}
/* Vulkan version of gdk_memory_format_gl_rgba_format()
* Returns VK_FORMAT_UNDEFINED on failure */
VkFormat
gdk_memory_format_vk_rgba_format (GdkMemoryFormat format,
GdkMemoryFormat *out_rgba_format,
VkComponentMapping *out_swizzle)
{
GdkMemoryFormat actual = memory_formats[format].gl.rgba_format;
if (actual == -1)
return VK_FORMAT_UNDEFINED;
if (out_rgba_format)
*out_rgba_format = actual;
if (out_swizzle)
vk_swizzle_from_gl_swizzle (out_swizzle, memory_formats[format].gl.rgba_swizzle);
return memory_formats[actual].vk_format;
}
#endif
/*
* gdk_memory_format_get_dmabuf_fourcc:
* @format: The memory format
*
* Gets the dmabuf fourcc for a given memory format.
*
* The format is an exact match, so data can be copied between the
* dmabuf and data of the format. This is different from the
* memoryformat returned by a GdkDmabufTexture, which is just the
* closest match.
*
* Not all formats have a corresponding dmabuf format.
* In those cases 0 will be returned.
*
* If dmabuf support is not compiled in, always returns 0.
*
* Returns: the fourcc or 0
**/
guint32
gdk_memory_format_get_dmabuf_fourcc (GdkMemoryFormat format)
{
#ifdef HAVE_DMABUF
return memory_formats[format].dmabuf_fourcc;
#else
return 0;
#endif
}
static void
premultiply (float *rgba,
gsize n)
{
for (gsize i = 0; i < n; i++)
{
rgba[0] *= rgba[3];
rgba[1] *= rgba[3];
rgba[2] *= rgba[3];
rgba += 4;
}
}
static void
unpremultiply (float *rgba,
gsize n)
{
for (gsize i = 0; i < n; i++)
{
if (rgba[3] > 1/255.0)
{
rgba[0] /= rgba[3];
rgba[1] /= rgba[3];
rgba[2] /= rgba[3];
}
rgba += 4;
}
}
void
gdk_memory_convert (guchar *dest_data,
gsize dest_stride,
GdkMemoryFormat dest_format,
const guchar *src_data,
gsize src_stride,
GdkMemoryFormat src_format,
gsize width,
gsize height)
{
const GdkMemoryFormatDescription *dest_desc = &memory_formats[dest_format];
const GdkMemoryFormatDescription *src_desc = &memory_formats[src_format];
float *tmp;
gsize y;
void (*func) (guchar *, const guchar *, gsize) = NULL;
g_assert (dest_format < GDK_MEMORY_N_FORMATS);
g_assert (src_format < GDK_MEMORY_N_FORMATS);
if (src_format == dest_format)
{
gsize bytes_per_row = src_desc->bytes_per_pixel * width;
if (bytes_per_row == src_stride && bytes_per_row == dest_stride)
{
memcpy (dest_data, src_data, bytes_per_row * height);
}
else
{
for (y = 0; y < height; y++)
{
memcpy (dest_data, src_data, bytes_per_row);
src_data += src_stride;
dest_data += dest_stride;
}
}
return;
}
if (src_format == GDK_MEMORY_R8G8B8A8 && dest_format == GDK_MEMORY_R8G8B8A8_PREMULTIPLIED)
func = r8g8b8a8_to_r8g8b8a8_premultiplied;
else if (src_format == GDK_MEMORY_B8G8R8A8 && dest_format == GDK_MEMORY_R8G8B8A8_PREMULTIPLIED)
func = r8g8b8a8_to_b8g8r8a8_premultiplied;
else if (src_format == GDK_MEMORY_R8G8B8A8 && dest_format == GDK_MEMORY_B8G8R8A8_PREMULTIPLIED)
func = r8g8b8a8_to_b8g8r8a8_premultiplied;
else if (src_format == GDK_MEMORY_B8G8R8A8 && dest_format == GDK_MEMORY_B8G8R8A8_PREMULTIPLIED)
func = r8g8b8a8_to_r8g8b8a8_premultiplied;
else if (src_format == GDK_MEMORY_R8G8B8A8 && dest_format == GDK_MEMORY_A8R8G8B8_PREMULTIPLIED)
func = r8g8b8a8_to_a8r8g8b8_premultiplied;
else if (src_format == GDK_MEMORY_B8G8R8A8 && dest_format == GDK_MEMORY_A8R8G8B8_PREMULTIPLIED)
func = r8g8b8a8_to_a8b8g8r8_premultiplied;
else if (src_format == GDK_MEMORY_R8G8B8 && dest_format == GDK_MEMORY_R8G8B8A8_PREMULTIPLIED)
func = r8g8b8_to_r8g8b8a8;
else if (src_format == GDK_MEMORY_B8G8R8 && dest_format == GDK_MEMORY_R8G8B8A8_PREMULTIPLIED)
func = r8g8b8_to_b8g8r8a8;
else if (src_format == GDK_MEMORY_R8G8B8 && dest_format == GDK_MEMORY_B8G8R8A8_PREMULTIPLIED)
func = r8g8b8_to_b8g8r8a8;
else if (src_format == GDK_MEMORY_B8G8R8 && dest_format == GDK_MEMORY_B8G8R8A8_PREMULTIPLIED)
func = r8g8b8_to_r8g8b8a8;
else if (src_format == GDK_MEMORY_R8G8B8 && dest_format == GDK_MEMORY_A8R8G8B8_PREMULTIPLIED)
func = r8g8b8_to_a8r8g8b8;
else if (src_format == GDK_MEMORY_B8G8R8 && dest_format == GDK_MEMORY_A8R8G8B8_PREMULTIPLIED)
func = r8g8b8_to_a8b8g8r8;
else if (src_format == GDK_MEMORY_R8G8B8 && dest_format == GDK_MEMORY_R8G8B8A8)
func = r8g8b8_to_r8g8b8a8;
else if (src_format == GDK_MEMORY_B8G8R8 && dest_format == GDK_MEMORY_R8G8B8A8)
func = r8g8b8_to_b8g8r8a8;
else if (src_format == GDK_MEMORY_R8G8B8 && dest_format == GDK_MEMORY_B8G8R8A8)
func = r8g8b8_to_b8g8r8a8;
else if (src_format == GDK_MEMORY_B8G8R8 && dest_format == GDK_MEMORY_B8G8R8A8)
func = r8g8b8_to_r8g8b8a8;
else if (src_format == GDK_MEMORY_R8G8B8 && dest_format == GDK_MEMORY_A8R8G8B8)
func = r8g8b8_to_a8r8g8b8;
else if (src_format == GDK_MEMORY_B8G8R8 && dest_format == GDK_MEMORY_A8R8G8B8)
func = r8g8b8_to_a8b8g8r8;
if (func != NULL)
{
for (y = 0; y < height; y++)
{
func (dest_data, src_data, width);
src_data += src_stride;
dest_data += dest_stride;
}
return;
}
tmp = g_new (float, width * 4);
for (y = 0; y < height; y++)
{
src_desc->to_float (tmp, src_data, width);
if (src_desc->alpha == GDK_MEMORY_ALPHA_PREMULTIPLIED && dest_desc->alpha == GDK_MEMORY_ALPHA_STRAIGHT)
unpremultiply (tmp, width);
else if (src_desc->alpha == GDK_MEMORY_ALPHA_STRAIGHT && dest_desc->alpha != GDK_MEMORY_ALPHA_STRAIGHT)
premultiply (tmp, width);
dest_desc->from_float (dest_data, tmp, width);
src_data += src_stride;
dest_data += dest_stride;
}
g_free (tmp);
}
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