[gtk/wip/otte/memoryformat: 2/6] gl: Move memory <=> GL format mapping
- From: Benjamin Otte <otte src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gtk/wip/otte/memoryformat: 2/6] gl: Move memory <=> GL format mapping
- Date: Wed, 6 Oct 2021 20:50:25 +0000 (UTC)
commit 149395c306bb13589c60d01024ad65d1bc07e99c
Author: Benjamin Otte <otte redhat com>
Date: Sat Sep 25 04:47:45 2021 +0200
gl: Move memory <=> GL format mapping
Put it into gdkmemoryformat.c, where all the mapping goes.
gdk/gdkglcontext.c | 89 ++++++++++++--------------------------------
gdk/gdkmemoryformat.c | 67 ++++++++++++++++++++++++++++++++-
gdk/gdkmemoryformatprivate.h | 5 +++
3 files changed, 95 insertions(+), 66 deletions(-)
---
diff --git a/gdk/gdkglcontext.c b/gdk/gdkglcontext.c
index ece50c8cd2..01b26120eb 100644
--- a/gdk/gdkglcontext.c
+++ b/gdk/gdkglcontext.c
@@ -239,80 +239,39 @@ gdk_gl_context_upload_texture (GdkGLContext *context,
{
GdkGLContextPrivate *priv = gdk_gl_context_get_instance_private (context);
guchar *copy = NULL;
- GLint gl_internalformat;
- GLint gl_format;
- GLint gl_type;
+ GLenum gl_internalformat;
+ GLenum gl_format;
+ GLenum gl_type;
gsize bpp;
g_return_if_fail (GDK_IS_GL_CONTEXT (context));
- if (!priv->use_es && data_format == GDK_MEMORY_DEFAULT) /* Cairo surface format */
+ if (!gdk_memory_format_gl_format (data_format,
+ priv->use_es,
+ &gl_internalformat,
+ &gl_format,
+ &gl_type))
{
- gl_internalformat = GL_RGBA8;
- gl_format = GL_BGRA;
- gl_type = GL_UNSIGNED_INT_8_8_8_8_REV;
- }
- else if (data_format == GDK_MEMORY_R8G8B8) /* Pixmap non-alpha data */
- {
- gl_internalformat = GL_RGBA8;
- gl_format = GL_RGB;
- gl_type = GL_UNSIGNED_BYTE;
- }
- else if (priv->use_es && data_format == GDK_MEMORY_B8G8R8)
- {
- gl_internalformat = GL_RGBA8;
- gl_format = GL_BGR;
- gl_type = GL_UNSIGNED_BYTE;
- }
- else if (data_format == GDK_MEMORY_R16G16B16)
- {
- gl_internalformat = GL_RGBA16;
- gl_format = GL_RGB;
- gl_type = GL_UNSIGNED_SHORT;
- }
- else if (data_format == GDK_MEMORY_R16G16B16A16_PREMULTIPLIED)
- {
- gl_internalformat = GL_RGBA16;
- gl_format = GL_RGBA;
- gl_type = GL_UNSIGNED_SHORT;
- }
- else if (data_format == GDK_MEMORY_R16G16B16_FLOAT)
- {
- gl_internalformat = GL_RGB16F;
- gl_format = GL_RGB;
- gl_type = GL_HALF_FLOAT;
- }
- else if (data_format == GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED)
- {
- gl_internalformat = GL_RGBA16F;
- gl_format = GL_RGBA;
- gl_type = GL_HALF_FLOAT;
- }
- else if (data_format == GDK_MEMORY_R32G32B32_FLOAT)
- {
- gl_internalformat = GL_RGB32F;
- gl_format = GL_RGB;
- gl_type = GL_FLOAT;
- }
- else if (data_format == GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED)
- {
- gl_internalformat = GL_RGBA32F;
- gl_format = GL_RGBA;
- gl_type = GL_FLOAT;
- }
- else /* Fall-back, convert to GLES format */
- {
- copy = g_malloc (width * height * 4);
+ copy = g_malloc_n (width * 4, height);
gdk_memory_convert (copy, width * 4,
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
- data, stride, data_format,
+ data, stride,
+ data_format,
width, height);
- data_format = GDK_MEMORY_R8G8B8A8_PREMULTIPLIED;
- stride = width * 4;
data = copy;
- gl_internalformat = GL_RGBA8;
- gl_format = GL_RGBA;
- gl_type = GL_UNSIGNED_BYTE;
+ data_format = GDK_MEMORY_R8G8B8A8_PREMULTIPLIED;
+ if (!gdk_memory_format_gl_format (data_format,
+ priv->use_es,
+ &gl_internalformat,
+ &gl_format,
+ &gl_type))
+ {
+ g_assert_not_reached ();
+ }
+ }
+ else
+ {
+ copy = NULL;
}
bpp = gdk_memory_format_bytes_per_pixel (data_format);
diff --git a/gdk/gdkmemoryformat.c b/gdk/gdkmemoryformat.c
index 2a4cfa1e92..8b2ba6ae6d 100644
--- a/gdk/gdkmemoryformat.c
+++ b/gdk/gdkmemoryformat.c
@@ -23,6 +23,8 @@
#include "gsk/ngl/fp16private.h"
+#include <epoxy/gl.h>
+
typedef struct _GdkMemoryFormatDescription GdkMemoryFormatDescription;
typedef enum {
@@ -175,17 +177,32 @@ struct _GdkMemoryFormatDescription
GdkMemoryAlpha alpha;
gsize bytes_per_pixel;
gsize alignment;
-
+ gboolean supports_gles;
+ struct {
+ guint internal_format;
+ guint format;
+ guint type;
+ } gl;
/* 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_N_FORMATS] = {
[GDK_MEMORY_B8G8R8A8_PREMULTIPLIED] = {
GDK_MEMORY_ALPHA_PREMULTIPLIED,
4,
G_ALIGNOF (guchar),
+ FALSE,
+ { GL_RGBA8, GL_BGRA, GL_UNSIGNED_BYTE },
b8g8r8a8_premultiplied_to_float,
b8g8r8a8_premultiplied_from_float,
},
@@ -193,6 +210,8 @@ static const GdkMemoryFormatDescription memory_formats[GDK_MEMORY_N_FORMATS] = {
GDK_MEMORY_ALPHA_PREMULTIPLIED,
4,
G_ALIGNOF (guchar),
+ FALSE,
+ { GL_RGBA8, GL_BGRA, GDK_GL_UNSIGNED_BYTE_FLIPPED },
a8r8g8b8_premultiplied_to_float,
a8r8g8b8_premultiplied_from_float,
},
@@ -200,6 +219,8 @@ static const GdkMemoryFormatDescription memory_formats[GDK_MEMORY_N_FORMATS] = {
GDK_MEMORY_ALPHA_PREMULTIPLIED,
4,
G_ALIGNOF (guchar),
+ TRUE,
+ { GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE },
r8g8b8a8_premultiplied_to_float,
r8g8b8a8_premultiplied_from_float,
},
@@ -207,6 +228,8 @@ static const GdkMemoryFormatDescription memory_formats[GDK_MEMORY_N_FORMATS] = {
GDK_MEMORY_ALPHA_STRAIGHT,
4,
G_ALIGNOF (guchar),
+ FALSE,
+ { GL_RGBA8, GL_BGRA, GL_UNSIGNED_BYTE },
b8g8r8a8_to_float,
b8g8r8a8_from_float,
},
@@ -214,6 +237,8 @@ static const GdkMemoryFormatDescription memory_formats[GDK_MEMORY_N_FORMATS] = {
GDK_MEMORY_ALPHA_STRAIGHT,
4,
G_ALIGNOF (guchar),
+ FALSE,
+ { GL_RGBA8, GL_RGBA, GDK_GL_UNSIGNED_BYTE_FLIPPED },
a8r8g8b8_to_float,
a8r8g8b8_from_float,
},
@@ -221,6 +246,8 @@ static const GdkMemoryFormatDescription memory_formats[GDK_MEMORY_N_FORMATS] = {
GDK_MEMORY_ALPHA_STRAIGHT,
4,
G_ALIGNOF (guchar),
+ TRUE,
+ { GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE },
r8g8b8a8_to_float,
r8g8b8a8_from_float,
},
@@ -228,6 +255,8 @@ static const GdkMemoryFormatDescription memory_formats[GDK_MEMORY_N_FORMATS] = {
GDK_MEMORY_ALPHA_STRAIGHT,
4,
G_ALIGNOF (guchar),
+ FALSE,
+ { GL_RGBA8, GL_BGRA, GDK_GL_UNSIGNED_BYTE_FLIPPED },
a8b8g8r8_to_float,
a8b8g8r8_from_float,
},
@@ -235,6 +264,8 @@ static const GdkMemoryFormatDescription memory_formats[GDK_MEMORY_N_FORMATS] = {
GDK_MEMORY_ALPHA_OPAQUE,
3,
G_ALIGNOF (guchar),
+ TRUE,
+ { GL_RGBA8, GL_RGB, GL_UNSIGNED_BYTE },
r8g8b8_to_float,
r8g8b8_from_float,
},
@@ -242,6 +273,8 @@ static const GdkMemoryFormatDescription memory_formats[GDK_MEMORY_N_FORMATS] = {
GDK_MEMORY_ALPHA_OPAQUE,
3,
G_ALIGNOF (guchar),
+ FALSE,
+ { GL_RGB8, GL_BGR, GL_UNSIGNED_BYTE },
b8g8r8_to_float,
b8g8r8_from_float,
},
@@ -249,6 +282,8 @@ static const GdkMemoryFormatDescription memory_formats[GDK_MEMORY_N_FORMATS] = {
GDK_MEMORY_ALPHA_OPAQUE,
6,
G_ALIGNOF (guint16),
+ TRUE,
+ { GL_RGB16, GL_RGB, GL_UNSIGNED_SHORT },
r16g16b16_to_float,
r16g16b16_from_float,
},
@@ -256,6 +291,8 @@ static const GdkMemoryFormatDescription memory_formats[GDK_MEMORY_N_FORMATS] = {
GDK_MEMORY_ALPHA_PREMULTIPLIED,
8,
G_ALIGNOF (guint16),
+ TRUE,
+ { GL_RGBA16, GL_RGBA, GL_UNSIGNED_SHORT },
r16g16b16a16_to_float,
r16g16b16a16_from_float,
},
@@ -263,6 +300,8 @@ static const GdkMemoryFormatDescription memory_formats[GDK_MEMORY_N_FORMATS] = {
GDK_MEMORY_ALPHA_OPAQUE,
6,
G_ALIGNOF (guint16),
+ TRUE,
+ { GL_RGB16F, GL_RGB, GL_HALF_FLOAT },
r16g16b16_float_to_float,
r16g16b16_float_from_float,
},
@@ -270,6 +309,8 @@ static const GdkMemoryFormatDescription memory_formats[GDK_MEMORY_N_FORMATS] = {
GDK_MEMORY_ALPHA_PREMULTIPLIED,
8,
G_ALIGNOF (guint16),
+ TRUE,
+ { GL_RGBA16F, GL_RGBA, GL_HALF_FLOAT },
r16g16b16a16_float_to_float,
r16g16b16a16_float_from_float,
},
@@ -277,6 +318,8 @@ static const GdkMemoryFormatDescription memory_formats[GDK_MEMORY_N_FORMATS] = {
GDK_MEMORY_ALPHA_OPAQUE,
12,
G_ALIGNOF (float),
+ TRUE,
+ { GL_RGB32F, GL_RGB, GL_FLOAT },
r32g32b32_float_to_float,
r32g32b32_float_from_float,
},
@@ -284,6 +327,8 @@ static const GdkMemoryFormatDescription memory_formats[GDK_MEMORY_N_FORMATS] = {
GDK_MEMORY_ALPHA_PREMULTIPLIED,
16,
G_ALIGNOF (float),
+ TRUE,
+ { GL_RGBA32F, GL_RGBA, GL_FLOAT },
r32g32b32a32_float_to_float,
r32g32b32a32_float_from_float,
}
@@ -301,6 +346,26 @@ gdk_memory_format_alignment (GdkMemoryFormat format)
return memory_formats[format].alignment;
}
+gboolean
+gdk_memory_format_gl_format (GdkMemoryFormat format,
+ gboolean gles,
+ guint *out_internal_format,
+ guint *out_format,
+ guint *out_type)
+{
+ *out_internal_format = memory_formats[format].gl.internal_format;
+ *out_format = memory_formats[format].gl.format;
+ *out_type = memory_formats[format].gl.type;
+
+ if (memory_formats[format].alpha == GDK_MEMORY_ALPHA_STRAIGHT)
+ return FALSE;
+
+ if (gles && !memory_formats[format].supports_gles)
+ return FALSE;
+
+ return TRUE;
+}
+
static void
premultiply (float *rgba,
gsize n)
diff --git a/gdk/gdkmemoryformatprivate.h b/gdk/gdkmemoryformatprivate.h
index 0de89f0756..8c8e024b23 100644
--- a/gdk/gdkmemoryformatprivate.h
+++ b/gdk/gdkmemoryformatprivate.h
@@ -26,6 +26,11 @@ G_BEGIN_DECLS
gsize gdk_memory_format_alignment (GdkMemoryFormat format)
G_GNUC_CONST;
gsize gdk_memory_format_bytes_per_pixel (GdkMemoryFormat format)
G_GNUC_CONST;
+gboolean gdk_memory_format_gl_format (GdkMemoryFormat format,
+ gboolean gles,
+ guint *out_internal_format,
+ guint *out_format,
+ guint *out_type);
void gdk_memory_convert (guchar *dest_data,
gsize dest_stride,
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