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gdk: Introduce GdkGLVersion

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... and use it.

Makes the code simpler.
This commit is contained in:
Benjamin Otte 2023-04-25 19:17:07 +02:00
parent dacfed3e11
commit f86429177a
7 changed files with 170 additions and 121 deletions
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84
gdk/gdkglcontext.c
View File

@ -82,6 +82,7 @@
#include "gdkmemoryformatprivate.h"
#include "gdkmemorytextureprivate.h"
#include "gdkprofilerprivate.h"
#include "gdkglversionprivate.h"
#include "gdkprivate.h"
@ -99,8 +100,7 @@
#define DEFAULT_ALLOWED_APIS GDK_GL_API_GL | GDK_GL_API_GLES
typedef struct {
int major;
int minor;
GdkGLVersion required;
int gl_version;
guint has_khr_debug : 1;
@ -288,7 +288,7 @@ gdk_gl_context_create_egl_context (GdkGLContext *context,
EGLContext ctx;
EGLint context_attribs[N_EGL_ATTRS], i = 0, flags = 0;
gboolean debug_bit, forward_bit;
int min_major, min_minor, major = 0, minor = 0;
GdkGLVersion min, version;
G_GNUC_UNUSED gint64 start_time = GDK_PROFILER_CURRENT_TIME;
if (!gdk_gl_context_is_api_allowed (context, api, NULL))
@ -296,11 +296,8 @@ gdk_gl_context_create_egl_context (GdkGLContext *context,
/* We will use the default version matching the context status
* unless the user requested a version which makes sense */
gdk_gl_context_get_matching_version (api, legacy,
&min_major, &min_minor);
gdk_gl_context_get_clipped_version (context,
min_major, min_minor,
&major, &minor);
gdk_gl_context_get_matching_version (api, legacy, &min);
gdk_gl_context_get_clipped_version (context, &min, &version);
if (!eglBindAPI (gdk_api_to_egl_api (api)))
return 0;
@ -331,9 +328,9 @@ gdk_gl_context_create_egl_context (GdkGLContext *context,
flags &= ~EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR;
context_attribs[i++] = EGL_CONTEXT_MAJOR_VERSION;
context_attribs[i++] = major;
context_attribs[i++] = gdk_gl_version_get_major (&version);
context_attribs[i++] = EGL_CONTEXT_MINOR_VERSION;
context_attribs[i++] = minor;
context_attribs[i++] = gdk_gl_version_get_minor (&version);
context_attribs[i++] = EGL_CONTEXT_FLAGS_KHR;
context_attribs[i++] = flags;
@ -342,7 +339,7 @@ gdk_gl_context_create_egl_context (GdkGLContext *context,
GDK_DISPLAY_DEBUG (display, OPENGL,
"Creating EGL context version %d.%d (debug:%s, forward:%s, legacy:%s, es:%s)",
major, minor,
gdk_gl_version_get_major (&version), gdk_gl_version_get_minor (&version),
debug_bit ? "yes" : "no",
forward_bit ? "yes" : "no",
legacy ? "yes" : "no",
@ -986,36 +983,21 @@ gdk_gl_context_get_forward_compatible (GdkGLContext *context)
}
void
gdk_gl_context_get_matching_version (GdkGLAPI api,
gboolean legacy,
int *major,
int *minor)
gdk_gl_context_get_matching_version (GdkGLAPI api,
gboolean legacy,
GdkGLVersion *out_version)
{
int maj, min;
if (api == GDK_GL_API_GL)
{
if (legacy)
{
maj = GDK_GL_MIN_GL_LEGACY_VERSION_MAJOR;
min = GDK_GL_MIN_GL_LEGACY_VERSION_MINOR;
}
*out_version = GDK_GL_MIN_GL_LEGACY_VERSION;
else
{
maj = GDK_GL_MIN_GL_VERSION_MAJOR;
min = GDK_GL_MIN_GL_VERSION_MINOR;
}
*out_version = GDK_GL_MIN_GL_VERSION;
}
else
{
maj = GDK_GL_MIN_GLES_VERSION_MAJOR;
min = GDK_GL_MIN_GLES_VERSION_MINOR;
*out_version = GDK_GL_MIN_GLES_VERSION;
}
if (major != NULL)
*major = maj;
if (minor != NULL)
*minor = min;
}
/**
@ -1044,8 +1026,7 @@ gdk_gl_context_set_required_version (GdkGLContext *context,
g_return_if_fail (GDK_IS_GL_CONTEXT (context));
g_return_if_fail (!gdk_gl_context_is_realized (context));
priv->major = major;
priv->minor = minor;
priv->required = GDK_GL_VERSION_INIT (major, minor);
}
gboolean
@ -1101,33 +1082,24 @@ gdk_gl_context_get_required_version (GdkGLContext *context,
g_return_if_fail (GDK_IS_GL_CONTEXT (context));
if (major != NULL)
*major = priv->major;
*major = gdk_gl_version_get_major (&priv->required);
if (minor != NULL)
*minor = priv->minor;
*minor = gdk_gl_version_get_minor (&priv->required);
}
void
gdk_gl_context_get_clipped_version (GdkGLContext *context,
int min_major,
int min_minor,
int *major,
int *minor)
gdk_gl_context_get_clipped_version (GdkGLContext *context,
const GdkGLVersion *min_version,
GdkGLVersion *out_clipped)
{
GdkGLContextPrivate *priv = gdk_gl_context_get_instance_private (context);
int maj = min_major, min = min_minor;
g_return_if_fail (GDK_IS_GL_CONTEXT (context));
if (priv->major > maj || (priv->major == maj && priv->minor > min))
{
maj = priv->major;
min = priv->minor;
}
if (major != NULL)
*major = maj;
if (minor != NULL)
*minor = min;
if (gdk_gl_version_greater_equal (&priv->required, min_version))
*out_clipped = priv->required;
else
*out_clipped = *min_version;
}
/**
@ -1504,6 +1476,14 @@ gdk_gl_context_realize (GdkGLContext *context,
return priv->api;
}
void
gdk_gl_version_init_epoxy (GdkGLVersion *version)
{
int epoxy_version = epoxy_gl_version ();
*version = GDK_GL_VERSION_INIT (epoxy_version / 10, epoxy_version % 10);
}
static void
gdk_gl_context_check_extensions (GdkGLContext *context)
{

46
gdk/gdkglcontextprivate.h
View File

@ -22,29 +22,10 @@
#include "gdkglcontext.h"
#include "gdkdrawcontextprivate.h"
#include "gdkglversionprivate.h"
G_BEGIN_DECLS
/* Version requirements for EGL contexts.
*
* If you add support for EGL to your backend, please require this.
*/
#define GDK_EGL_MIN_VERSION_MAJOR (1)
#define GDK_EGL_MIN_VERSION_MINOR (4)
/* Minimum OpenGL versions supported by GTK.
* Backends should make sure to never create a context of a previous version.
*
* The macros refer to OpenGL; OpenGL with OPENGL_COMPATIBILITY_PROFILE_BIT as
* OPENGL_PROFILE_MASK; and OpenGL ES respectively
*/
#define GDK_GL_MIN_GL_VERSION_MAJOR (3)
#define GDK_GL_MIN_GL_VERSION_MINOR (2)
#define GDK_GL_MIN_GL_LEGACY_VERSION_MAJOR (3)
#define GDK_GL_MIN_GL_LEGACY_VERSION_MINOR (0)
#define GDK_GL_MIN_GLES_VERSION_MAJOR (2)
#define GDK_GL_MIN_GLES_VERSION_MINOR (0)
typedef enum {
GDK_GL_NONE = 0,
GDK_GL_EGL,
@ -124,20 +105,17 @@ gboolean gdk_gl_context_is_api_allowed (GdkGLContext
void gdk_gl_context_set_is_legacy (GdkGLContext *context,
gboolean is_legacy);
gboolean gdk_gl_context_check_version (GdkGLContext *context,
int required_gl_major,
int required_gl_minor,
int required_gles_major,
int required_gles_minor);
void gdk_gl_context_get_clipped_version (GdkGLContext *context,
int min_major,
int min_minor,
int *major,
int *minor);
void gdk_gl_context_get_matching_version (GdkGLAPI api,
gboolean legacy,
int *major,
int *minor);
gboolean gdk_gl_context_check_version (GdkGLContext *context,
int required_gl_major,
int required_gl_minor,
int required_gles_major,
int required_gles_minor);
void gdk_gl_context_get_clipped_version (GdkGLContext *context,
const GdkGLVersion *min_version,
GdkGLVersion *out_clipped);
void gdk_gl_context_get_matching_version (GdkGLAPI api,
gboolean legacy,
GdkGLVersion *out_version);
gboolean gdk_gl_context_has_unpack_subimage (GdkGLContext *context);
void gdk_gl_context_push_debug_group (GdkGLContext *context,

95
gdk/gdkglversionprivate.h Normal file
View File

@ -0,0 +1,95 @@
/* GDK - The GIMP Drawing Kit
*
* gdkglcontextprivate.h: GL context abstraction
*
* Copyright © 2014 Emmanuele Bassi
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <glib.h>
G_BEGIN_DECLS
/* Version requirements for EGL contexts.
*
* If you add support for EGL to your backend, please require this.
*/
#define GDK_EGL_MIN_VERSION_MAJOR (1)
#define GDK_EGL_MIN_VERSION_MINOR (4)
/* Minimum OpenGL versions supported by GTK.
* Backends should make sure to never create a context of a previous version.
*
* The macros refer to OpenGL; OpenGL with OPENGL_COMPATIBILITY_PROFILE_BIT as
* OPENGL_PROFILE_MASK; and OpenGL ES respectively
*/
#define GDK_GL_MIN_GL_VERSION GDK_GL_VERSION_INIT (3, 2)
#define GDK_GL_MIN_GL_LEGACY_VERSION GDK_GL_VERSION_INIT (3, 0)
#define GDK_GL_MIN_GLES_VERSION GDK_GL_VERSION_INIT (2, 0)
typedef struct _GdkGLVersion GdkGLVersion;
struct _GdkGLVersion
{
int major;
int minor;
};
#define GDK_GL_VERSION_INIT(maj,min) (GdkGLVersion) { maj, min }
#define GDK_GL_VERSION_STRING(str) GDK_GL_VERSION_INIT(str[0] - '0', str[2] - '0')
static inline int
gdk_gl_version_get_major (const GdkGLVersion *self)
{
return self->major;
}
static inline int
gdk_gl_version_get_minor (const GdkGLVersion *self)
{
return self->minor;
}
static inline int
gdk_gl_version_compare (const GdkGLVersion *a,
const GdkGLVersion *b)
{
if (a->major > b->major)
return 1;
if (a->major < b->major)
return -1;
if (a->minor > b->minor)
return 1;
if (a->minor < b->minor)
return -1;
return 0;
}
static inline gboolean
gdk_gl_version_greater_equal (const GdkGLVersion *a,
const GdkGLVersion *b)
{
return gdk_gl_version_compare (a, b) >= 0;
}
/* in gdkglcontext.c */
void gdk_gl_version_init_epoxy (GdkGLVersion *version);
G_END_DECLS

20
gdk/macos/gdkmacosglcontext.c
View File

@ -323,9 +323,8 @@ gdk_macos_gl_context_release (GdkMacosGLContext *self)
}
static CGLPixelFormatObj
create_pixel_format (int major,
int minor,
GError **error)
create_pixel_format (GdkGLVersion *version,
GError **error)
{
CGLPixelFormatAttribute attrs[] = {
kCGLPFAOpenGLProfile, (CGLPixelFormatAttribute)kCGLOGLPVersion_Legacy,
@ -339,9 +338,9 @@ create_pixel_format (int major,
CGLPixelFormatObj format = NULL;
GLint n_format = 1;
if (major == 3 && minor == 2)
if (gdk_gl_version_get_major (version) == 3)
attrs[1] = (CGLPixelFormatAttribute)kCGLOGLPVersion_GL3_Core;
else if (major == 4 && minor == 1)
else
attrs[1] = (CGLPixelFormatAttribute)kCGLOGLPVersion_GL4_Core;
if (!CHECK (error, CGLChoosePixelFormat (attrs, &format, &n_format)))
@ -366,7 +365,7 @@ gdk_macos_gl_context_real_realize (GdkGLContext *context,
GLint validate = 0;
GLint renderer_id = 0;
GLint swapRect[4];
int major, minor;
GdkGLVersion version;
g_assert (GDK_IS_MACOS_GL_CONTEXT (self));
@ -379,9 +378,8 @@ gdk_macos_gl_context_real_realize (GdkGLContext *context,
existing = CGLGetCurrentContext ();
gdk_gl_context_get_clipped_version (context,
GDK_GL_MIN_GL_VERSION_MAJOR,
GDK_GL_MIN_GL_VERSION_MINOR,
&major, &minor);
GDK_GL_MIN_GL_VERSION,
&version);
display = gdk_gl_context_get_display (context);
shared = gdk_display_get_gl_context (display);
@ -400,9 +398,9 @@ gdk_macos_gl_context_real_realize (GdkGLContext *context,
GDK_DISPLAY_DEBUG (display, OPENGL,
"Creating CGLContextObj (version %d.%d)",
major, minor);
gdk_gl_version_get_major (&version), gdk_gl_version_get_minor (&version));
if (!(pixelFormat = create_pixel_format (major, minor, error)))
if (!(pixelFormat = create_pixel_format (&version, error)))
return 0;
if (!CHECK (error, CGLCreateContext (pixelFormat, shared_gl_context, &cgl_context)))

4
gdk/win32/gdkdisplay-win32.h
View File

@ -24,6 +24,8 @@
#include "gdkwin32screen.h"
#include "gdkwin32cursor.h"
#include "gdkglversionprivate.h"
#ifdef HAVE_EGL
# include <epoxy/egl.h>
#endif
@ -124,7 +126,7 @@ struct _GdkWin32Display
/* WGL/OpenGL Items */
GdkWin32GLDummyContextWGL dummy_context_wgl;
guint gl_version;
GdkGLVersion gl_version;
GListModel *monitors;

28
gdk/win32/gdkglcontext-win32-wgl.c
View File

@ -278,7 +278,7 @@ gdk_win32_display_init_wgl (GdkDisplay *display,
return FALSE;
}
display_win32->gl_version = epoxy_gl_version ();
gdk_gl_version_init_epoxy (&display_win32->gl_version);
display_win32->hasWglARBCreateContext =
epoxy_has_wgl_extension (hdc, "WGL_ARB_create_context");
@ -300,8 +300,8 @@ gdk_win32_display_init_wgl (GdkDisplay *display,
"\t* WGL_EXT_swap_control: %s\n"
"\t* WGL_OML_sync_control: %s\n"
"\t* WGL_ARB_multisample: %s\n",
display_win32->gl_version / 10,
display_win32->gl_version % 10,
gdk_gl_version_get_major (&display_win32->gl_version),
gdk_gl_version_get_minor (&display_win32->gl_version),
glGetString (GL_VENDOR),
display_win32->hasWglARBPixelFormat ? "yes" : "no",
display_win32->hasWglARBCreateContext ? "yes" : "no",
@ -509,8 +509,7 @@ gdk_win32_gl_context_wgl_realize (GdkGLContext *context,
/* request flags and specific versions for core (3.2+) WGL context */
int flags = 0;
int major = 0;
int minor = 0;
GdkGLVersion version;
HGLRC hglrc;
int pixel_format;
HDC hdc;
@ -535,9 +534,8 @@ gdk_win32_gl_context_wgl_realize (GdkGLContext *context,
* rather than the default GL core 3.2 context.
*/
gdk_gl_context_get_clipped_version (context,
display_win32->gl_version / 10,
display_win32->gl_version % 10,
&major, &minor);
&display_win32->gl_version,
&version);
if (surface != NULL)
hdc = GDK_WIN32_SURFACE (surface)->hdc;
@ -574,8 +572,8 @@ gdk_win32_gl_context_wgl_realize (GdkGLContext *context,
GDK_NOTE (OPENGL,
g_print ("Creating %s WGL context (version:%d.%d, debug:%s, forward:%s, legacy: %s)\n",
compat_bit ? "core" : "compat",
major,
minor,
gdk_gl_version_get_major (&version),
gdk_gl_version_get_minor (&version),
debug_bit ? "yes" : "no",
compat_bit ? "yes" : "no",
legacy_bit ? "yes" : "no"));
@ -583,9 +581,9 @@ gdk_win32_gl_context_wgl_realize (GdkGLContext *context,
hglrc = create_wgl_context (hdc,
share,
flags,
major,
minor,
&legacy_bit,
gdk_gl_version_get_major (&version),
gdk_gl_version_get_minor (&version),
&legacy_bit,
display_win32->hasWglARBCreateContext);
if (hglrc == NULL)
@ -714,9 +712,9 @@ gdk_win32_display_get_wgl_version (GdkDisplay *display,
display_win32 = GDK_WIN32_DISPLAY (display);
if (major != NULL)
*major = display_win32->gl_version / 10;
*major = gdk_gl_version_get_major (&display_win32->gl_version);
if (minor != NULL)
*minor = display_win32->gl_version % 10;
*major = gdk_gl_version_get_major (&display_win32->gl_version);
return TRUE;
}

14
gdk/x11/gdkglcontext-glx.c
View File

@ -477,7 +477,7 @@ gdk_x11_context_create_glx_context (GdkGLContext *context,
GdkSurface *surface = gdk_gl_context_get_surface (context);
GLXContext ctx;
int context_attribs[N_GLX_ATTRS], i = 0, flags = 0;
int min_major, min_minor, major, minor;
GdkGLVersion min, version;
gboolean debug_bit, compat_bit;
if (!gdk_gl_context_is_api_allowed (context, api, NULL))
@ -488,10 +488,8 @@ gdk_x11_context_create_glx_context (GdkGLContext *context,
/* We will use the default version matching the context status
* unless the user requested a version which makes sense */
gdk_gl_context_get_matching_version (api, legacy,
&min_major, &min_minor);
gdk_gl_context_get_clipped_version (context, min_major, min_minor,
&major, &minor);
gdk_gl_context_get_matching_version (api, legacy, &min);
gdk_gl_context_get_clipped_version (context, &min, &version);
debug_bit = gdk_gl_context_get_debug_enabled (context);
compat_bit = gdk_gl_context_get_forward_compatible (context);
@ -511,9 +509,9 @@ gdk_x11_context_create_glx_context (GdkGLContext *context,
context_attribs[i++] = GLX_CONTEXT_ES2_PROFILE_BIT_EXT;
context_attribs[i++] = GLX_CONTEXT_MAJOR_VERSION_ARB;
context_attribs[i++] = major;
context_attribs[i++] = gdk_gl_version_get_major (&version);
context_attribs[i++] = GLX_CONTEXT_MINOR_VERSION_ARB;
context_attribs[i++] = minor;
context_attribs[i++] = gdk_gl_version_get_minor (&version);
context_attribs[i++] = GLX_CONTEXT_FLAGS_ARB;
context_attribs[i++] = flags;
@ -522,7 +520,7 @@ gdk_x11_context_create_glx_context (GdkGLContext *context,
GDK_DISPLAY_DEBUG (display, OPENGL,
"Creating GLX context version %d.%d (debug:%s, forward:%s, legacy:%s, es:%s)",
major, minor,
gdk_gl_version_get_major (&version), gdk_gl_version_get_minor (&version),
debug_bit ? "yes" : "no",
compat_bit ? "yes" : "no",
legacy ? "yes" : "no",