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0045ac839b
gtk/gdk/gdkmemoryformat.c
Matthias Clasen 0045ac839b Give memory formats a name 
This is useful in debugging.

The names I chose are shortened a bit from the enum values. We
use just a single depth, * for premultiplied, and f for float.
2024-06-09 15:59:27 -04:00

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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
{
const char *name;
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] = {
.name = "*BGRA8",
.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] = {
.name = "*ARGB8",
.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] = {
.name = "*RGBA8",
.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] = {
.name = "*ABGR8",
.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] = {
.name = "BGRA8",
.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] = {
.name = "ARGB8",
.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] = {
.name = "RGBA8",
.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] = {
.name = "ABGR8",
.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] = {
.name = "BGRX8",
.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] = {
.name = "XRGB8",
.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] = {
.name = "RGBX8",
.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] = {
.name = "XBGR8",
.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] = {
.name = "RGB8",
.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] = {
.name = "BGR8",
.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] = {
.name = "RGB16",
.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] = {
.name = "*RGBA16",
.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] = {
.name = "RGBA16",
.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] = {
.name = "RGBA16f",
.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] = {
.name = "*RGBA16f",
.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] = {
.name = "RGBA16f",
.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] = {
.name = "RGB32f",
.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] = {
.name = "*RGBA32f",
.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] = {
.name = "RGBA32f",
.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] = {
.name = "*GA8",
.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] = {
.name = "GA8",
.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] = {
.name = "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] = {
.name = "*GA16",
.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] = {
.name = "GA16",
.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] = {
.name = "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] = {
.name = "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] = {
.name = "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] = {
.name = "A16f",
.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] = {
.name = "A32f",
.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
}
const char *
gdk_memory_format_get_name (GdkMemoryFormat format)
{
return memory_formats[format].name;
}
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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