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gtk/gdk/wayland/gdkglcontext-wayland.c
Alexander Larsson cc643df88b Convert all profiler times from nsec to usec 
usec is the scale of the monotonic timer which is where we get almost
all the times from. The only actual source of nsec is the opengl
GPU time (but who knows what the actual resulution of that is).

Changing this to usec allows us to get rid of " * 1000" in a *lot* of
places all over the codebase, which are ugly and confusing.
2020-02-12 10:44:17 +01:00

542 lines
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/* GDK - The GIMP Drawing Kit
*
* gdkglcontext-wayland.c: Wayland specific OpenGL wrappers
*
* Copyright © 2014 Emmanuele Bassi
* Copyright © 2014 Alexander Larsson
*
* 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/>.
*/
#include "config.h"
#include "gdkglcontext-wayland.h"
#include "gdkdisplay-wayland.h"
#include "gdkwaylanddisplay.h"
#include "gdkwaylandglcontext.h"
#include "gdkwaylandsurface.h"
#include "gdkprivate-wayland.h"
#include "gdkinternals.h"
#include "gdksurfaceprivate.h"
#include "gdkprofilerprivate.h"
#include "gdkintl.h"
G_DEFINE_TYPE (GdkWaylandGLContext, gdk_wayland_gl_context, GDK_TYPE_GL_CONTEXT)
static void gdk_wayland_gl_context_dispose (GObject *gobject);
#define N_EGL_ATTRS 16
static gboolean
gdk_wayland_gl_context_realize (GdkGLContext *context,
GError **error)
{
GdkWaylandGLContext *context_wayland = GDK_WAYLAND_GL_CONTEXT (context);
GdkDisplay *display = gdk_gl_context_get_display (context);
GdkGLContext *share = gdk_gl_context_get_shared_context (context);
GdkGLContext *shared_data_context = gdk_surface_get_shared_data_gl_context (gdk_gl_context_get_surface (context));
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
EGLContext ctx;
EGLint context_attribs[N_EGL_ATTRS];
int major, minor, flags;
gboolean debug_bit, forward_bit, legacy_bit, use_es;
int i = 0;
gdk_gl_context_get_required_version (context, &major, &minor);
debug_bit = gdk_gl_context_get_debug_enabled (context);
forward_bit = gdk_gl_context_get_forward_compatible (context);
legacy_bit = GDK_DISPLAY_DEBUG_CHECK (display, GL_LEGACY) ||
(share != NULL && gdk_gl_context_is_legacy (share));
use_es = GDK_DISPLAY_DEBUG_CHECK (display, GL_GLES) ||
(share != NULL && gdk_gl_context_get_use_es (share));
flags = 0;
if (debug_bit)
flags |= EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
if (forward_bit)
flags |= EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR;
if (!use_es)
{
eglBindAPI (EGL_OPENGL_API);
/* We want a core profile, unless in legacy mode */
context_attribs[i++] = EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR;
context_attribs[i++] = legacy_bit
? EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR
: EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR;
/* Specify the version */
context_attribs[i++] = EGL_CONTEXT_MAJOR_VERSION_KHR;
context_attribs[i++] = legacy_bit ? 3 : major;
context_attribs[i++] = EGL_CONTEXT_MINOR_VERSION_KHR;
context_attribs[i++] = legacy_bit ? 0 : minor;
}
else
{
eglBindAPI (EGL_OPENGL_ES_API);
context_attribs[i++] = EGL_CONTEXT_CLIENT_VERSION;
if (major == 3)
context_attribs[i++] = 3;
else
context_attribs[i++] = 2;
}
/* Specify the flags */
context_attribs[i++] = EGL_CONTEXT_FLAGS_KHR;
context_attribs[i++] = flags;
context_attribs[i++] = EGL_NONE;
g_assert (i < N_EGL_ATTRS);
GDK_DISPLAY_NOTE (display, OPENGL,
g_message ("Creating EGL context version %d.%d (debug:%s, forward:%s, legacy:%s, es:%s)",
major, minor,
debug_bit ? "yes" : "no",
forward_bit ? "yes" : "no",
legacy_bit ? "yes" : "no",
use_es ? "yes" : "no"));
ctx = eglCreateContext (display_wayland->egl_display,
context_wayland->egl_config,
share != NULL ? GDK_WAYLAND_GL_CONTEXT (share)->egl_context
: shared_data_context != NULL ? GDK_WAYLAND_GL_CONTEXT (shared_data_context)->egl_context
: EGL_NO_CONTEXT,
context_attribs);
/* If context creation failed without the legacy bit, let's try again with it */
if (ctx == NULL && !legacy_bit)
{
/* Ensure that re-ordering does not break the offsets */
g_assert (context_attribs[0] == EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR);
context_attribs[1] = EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR;
context_attribs[3] = 3;
context_attribs[5] = 0;
eglBindAPI (EGL_OPENGL_API);
legacy_bit = TRUE;
use_es = FALSE;
GDK_DISPLAY_NOTE (display, OPENGL,
g_message ("eglCreateContext failed, switching to legacy"));
ctx = eglCreateContext (display_wayland->egl_display,
context_wayland->egl_config,
share != NULL ? GDK_WAYLAND_GL_CONTEXT (share)->egl_context
: shared_data_context != NULL ? GDK_WAYLAND_GL_CONTEXT (shared_data_context)->egl_context
: EGL_NO_CONTEXT,
context_attribs);
}
if (ctx == NULL)
{
g_set_error_literal (error, GDK_GL_ERROR,
GDK_GL_ERROR_NOT_AVAILABLE,
_("Unable to create a GL context"));
return FALSE;
}
GDK_DISPLAY_NOTE (display, OPENGL, g_message ("Created EGL context[%p]", ctx));
context_wayland->egl_context = ctx;
gdk_gl_context_set_is_legacy (context, legacy_bit);
gdk_gl_context_set_use_es (context, use_es);
return TRUE;
}
static cairo_region_t *
gdk_wayland_gl_context_get_damage (GdkGLContext *context)
{
GdkDisplay *display = gdk_draw_context_get_display (GDK_DRAW_CONTEXT (context));
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
EGLSurface egl_surface;
GdkSurface *surface = gdk_draw_context_get_surface (GDK_DRAW_CONTEXT (context));
int buffer_age = 0;
if (display_wayland->have_egl_buffer_age)
{
GdkGLContext *shared;
GdkWaylandGLContext *shared_wayland;
shared = gdk_gl_context_get_shared_context (context);
if (shared == NULL)
shared = context;
shared_wayland = GDK_WAYLAND_GL_CONTEXT (shared);
egl_surface = gdk_wayland_surface_get_egl_surface (surface,
shared_wayland->egl_config);
gdk_gl_context_make_current (shared);
eglQuerySurface (display_wayland->egl_display, egl_surface,
EGL_BUFFER_AGE_EXT, &buffer_age);
switch (buffer_age)
{
case 1:
return cairo_region_create ();
break;
case 2:
if (context->old_updated_area[0])
return cairo_region_copy (context->old_updated_area[0]);
break;
case 3:
if (context->old_updated_area[0] &&
context->old_updated_area[1])
{
cairo_region_t *damage = cairo_region_copy (context->old_updated_area[0]);
cairo_region_union (damage, context->old_updated_area[1]);
return damage;
}
break;
default:
;
}
}
return GDK_GL_CONTEXT_CLASS (gdk_wayland_gl_context_parent_class)->get_damage (context);
}
static void
gdk_wayland_gl_context_end_frame (GdkDrawContext *draw_context,
cairo_region_t *painted)
{
GdkGLContext *context = GDK_GL_CONTEXT (draw_context);
GdkSurface *surface = gdk_gl_context_get_surface (context);
GdkDisplay *display = gdk_surface_get_display (surface);
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
GdkWaylandGLContext *context_wayland = GDK_WAYLAND_GL_CONTEXT (context);
EGLSurface egl_surface;
GDK_DRAW_CONTEXT_CLASS (gdk_wayland_gl_context_parent_class)->end_frame (draw_context, painted);
if (gdk_gl_context_get_shared_context (context))
return;
gdk_gl_context_make_current (context);
egl_surface = gdk_wayland_surface_get_egl_surface (surface,
context_wayland->egl_config);
gdk_wayland_surface_sync (surface);
gdk_wayland_surface_request_frame (surface);
gdk_profiler_add_mark (g_get_monotonic_time (), 0, "wayland", "swap buffers");
if (display_wayland->have_egl_swap_buffers_with_damage)
{
int i, j, n_rects = cairo_region_num_rectangles (painted);
EGLint *rects = g_new (EGLint, n_rects * 4);
cairo_rectangle_int_t rect;
int surface_height = gdk_surface_get_height (surface);
int scale = gdk_surface_get_scale_factor (surface);
for (i = 0, j = 0; i < n_rects; i++)
{
cairo_region_get_rectangle (painted, i, &rect);
rects[j++] = rect.x * scale;
rects[j++] = (surface_height - rect.height - rect.y) * scale;
rects[j++] = rect.width * scale;
rects[j++] = rect.height * scale;
}
eglSwapBuffersWithDamageEXT (display_wayland->egl_display, egl_surface, rects, n_rects);
g_free (rects);
}
else
eglSwapBuffers (display_wayland->egl_display, egl_surface);
}
static void
gdk_wayland_gl_context_class_init (GdkWaylandGLContextClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GdkDrawContextClass *draw_context_class = GDK_DRAW_CONTEXT_CLASS (klass);
GdkGLContextClass *context_class = GDK_GL_CONTEXT_CLASS (klass);
gobject_class->dispose = gdk_wayland_gl_context_dispose;
draw_context_class->end_frame = gdk_wayland_gl_context_end_frame;
context_class->realize = gdk_wayland_gl_context_realize;
context_class->get_damage = gdk_wayland_gl_context_get_damage;
}
static void
gdk_wayland_gl_context_init (GdkWaylandGLContext *self)
{
}
static EGLDisplay
gdk_wayland_get_display (GdkWaylandDisplay *display_wayland)
{
EGLDisplay dpy = NULL;
if (epoxy_has_egl_extension (NULL, "EGL_KHR_platform_base"))
{
PFNEGLGETPLATFORMDISPLAYPROC getPlatformDisplay =
(void *) eglGetProcAddress ("eglGetPlatformDisplay");
if (getPlatformDisplay)
dpy = getPlatformDisplay (EGL_PLATFORM_WAYLAND_EXT,
display_wayland->wl_display,
NULL);
if (dpy)
return dpy;
}
if (epoxy_has_egl_extension (NULL, "EGL_EXT_platform_base"))
{
PFNEGLGETPLATFORMDISPLAYEXTPROC getPlatformDisplay =
(void *) eglGetProcAddress ("eglGetPlatformDisplayEXT");
if (getPlatformDisplay)
dpy = getPlatformDisplay (EGL_PLATFORM_WAYLAND_EXT,
display_wayland->wl_display,
NULL);
if (dpy)
return dpy;
}
return eglGetDisplay ((EGLNativeDisplayType) display_wayland->wl_display);
}
gboolean
gdk_wayland_display_init_gl (GdkDisplay *display)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
EGLint major, minor;
EGLDisplay dpy;
if (display_wayland->have_egl)
return TRUE;
dpy = gdk_wayland_get_display (display_wayland);
if (dpy == NULL)
return FALSE;
if (!eglInitialize (dpy, &major, &minor))
return FALSE;
if (!eglBindAPI (EGL_OPENGL_API))
return FALSE;
display_wayland->egl_display = dpy;
display_wayland->egl_major_version = major;
display_wayland->egl_minor_version = minor;
display_wayland->have_egl = TRUE;
display_wayland->have_egl_khr_create_context =
epoxy_has_egl_extension (dpy, "EGL_KHR_create_context");
display_wayland->have_egl_buffer_age =
epoxy_has_egl_extension (dpy, "EGL_EXT_buffer_age");
display_wayland->have_egl_swap_buffers_with_damage =
epoxy_has_egl_extension (dpy, "EGL_EXT_swap_buffers_with_damage");
display_wayland->have_egl_surfaceless_context =
epoxy_has_egl_extension (dpy, "EGL_KHR_surfaceless_context");
GDK_DISPLAY_NOTE (display, OPENGL,
g_message ("EGL API version %d.%d found\n"
" - Vendor: %s\n"
" - Version: %s\n"
" - Client APIs: %s\n"
" - Extensions:\n"
"\t%s",
display_wayland->egl_major_version,
display_wayland->egl_minor_version,
eglQueryString (dpy, EGL_VENDOR),
eglQueryString (dpy, EGL_VERSION),
eglQueryString (dpy, EGL_CLIENT_APIS),
eglQueryString (dpy, EGL_EXTENSIONS)));
return TRUE;
}
#define MAX_EGL_ATTRS 30
static gboolean
find_eglconfig_for_surface (GdkSurface *surface,
EGLConfig *egl_config_out,
GError **error)
{
GdkDisplay *display = gdk_surface_get_display (surface);
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
EGLint attrs[MAX_EGL_ATTRS];
EGLint count;
EGLConfig *configs;
int i = 0;
attrs[i++] = EGL_SURFACE_TYPE;
attrs[i++] = EGL_WINDOW_BIT;
attrs[i++] = EGL_COLOR_BUFFER_TYPE;
attrs[i++] = EGL_RGB_BUFFER;
attrs[i++] = EGL_RED_SIZE;
attrs[i++] = 8;
attrs[i++] = EGL_GREEN_SIZE;
attrs[i++] = 8;
attrs[i++] = EGL_BLUE_SIZE;
attrs[i++] = 8;
attrs[i++] = EGL_ALPHA_SIZE;
attrs[i++] = 8;
attrs[i++] = EGL_NONE;
g_assert (i < MAX_EGL_ATTRS);
if (!eglChooseConfig (display_wayland->egl_display, attrs, NULL, 0, &count) || count < 1)
{
g_set_error_literal (error, GDK_GL_ERROR,
GDK_GL_ERROR_UNSUPPORTED_FORMAT,
_("No available configurations for the given pixel format"));
return FALSE;
}
configs = g_new (EGLConfig, count);
if (!eglChooseConfig (display_wayland->egl_display, attrs, configs, count, &count) || count < 1)
{
g_set_error_literal (error, GDK_GL_ERROR,
GDK_GL_ERROR_UNSUPPORTED_FORMAT,
_("No available configurations for the given pixel format"));
return FALSE;
}
/* Pick first valid configuration i guess? */
if (egl_config_out != NULL)
*egl_config_out = configs[0];
g_free (configs);
return TRUE;
}
GdkGLContext *
gdk_wayland_surface_create_gl_context (GdkSurface *surface,
gboolean attached,
GdkGLContext *share,
GError **error)
{
GdkDisplay *display = gdk_surface_get_display (surface);
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
GdkWaylandGLContext *context;
EGLConfig config;
if (!gdk_wayland_display_init_gl (display))
{
g_set_error_literal (error, GDK_GL_ERROR,
GDK_GL_ERROR_NOT_AVAILABLE,
_("No GL implementation is available"));
return NULL;
}
if (!display_wayland->have_egl_khr_create_context)
{
g_set_error_literal (error, GDK_GL_ERROR,
GDK_GL_ERROR_UNSUPPORTED_PROFILE,
_("Core GL is not available on EGL implementation"));
return NULL;
}
if (!find_eglconfig_for_surface (surface, &config, error))
return NULL;
context = g_object_new (GDK_TYPE_WAYLAND_GL_CONTEXT,
"surface", surface,
"shared-context", share,
NULL);
context->egl_config = config;
context->is_attached = attached;
return GDK_GL_CONTEXT (context);
}
static void
gdk_wayland_gl_context_dispose (GObject *gobject)
{
GdkWaylandGLContext *context_wayland = GDK_WAYLAND_GL_CONTEXT (gobject);
if (context_wayland->egl_context != NULL)
{
GdkGLContext *context = GDK_GL_CONTEXT (gobject);
GdkSurface *surface = gdk_gl_context_get_surface (context);
GdkDisplay *display = gdk_surface_get_display (surface);
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
if (eglGetCurrentContext () == context_wayland->egl_context)
eglMakeCurrent(display_wayland->egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT);
GDK_DISPLAY_NOTE (display, OPENGL, g_message ("Destroying EGL context"));
eglDestroyContext (display_wayland->egl_display,
context_wayland->egl_context);
context_wayland->egl_context = NULL;
}
G_OBJECT_CLASS (gdk_wayland_gl_context_parent_class)->dispose (gobject);
}
gboolean
gdk_wayland_display_make_gl_context_current (GdkDisplay *display,
GdkGLContext *context)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
GdkWaylandGLContext *context_wayland;
GdkSurface *surface;
EGLSurface egl_surface;
if (context == NULL)
{
eglMakeCurrent(display_wayland->egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT);
return TRUE;
}
context_wayland = GDK_WAYLAND_GL_CONTEXT (context);
surface = gdk_gl_context_get_surface (context);
if (context_wayland->is_attached || gdk_draw_context_is_in_frame (GDK_DRAW_CONTEXT (context)))
egl_surface = gdk_wayland_surface_get_egl_surface (surface, context_wayland->egl_config);
else
{
if (display_wayland->have_egl_surfaceless_context)
egl_surface = EGL_NO_SURFACE;
else
egl_surface = gdk_wayland_surface_get_dummy_egl_surface (surface,
context_wayland->egl_config);
}
if (!eglMakeCurrent (display_wayland->egl_display, egl_surface,
egl_surface, context_wayland->egl_context))
{
g_warning ("eglMakeCurrent failed");
return FALSE;
}
return TRUE;
}
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