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mutter/cogl/winsys/cogl-winsys-egl.c
Robert Bragg 426c8b8f41 features: Support more than 32 features! 
Currently features are represented as bits in a 32bit mask so we
obviously can't have more than 32 features with that approach. The new
approach is to use the COGL_FLAGS_ macros which lets us handle bitmasks
without a size limit and we change the public api to accept individual
feature enums instead of a mask. This way there is no limit on the
number of features we can add to Cogl.

Instead of using cogl_features_available() there is a new
cogl_has_feature() function and for checking multiple features there is
cogl_has_features() which takes a zero terminated vararg list of
features.

In addition to being able to check for individual features this also
adds a way to query all the features currently available via
cogl_foreach_feature() which will call a callback for each feature.

Since the new functions take an explicit context pointer there is also
no longer any ambiguity over when users can first start to query
features.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:01 +00:00

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/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2007,2008,2009,2010,2011 Intel Corporation.
*
* 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 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:
* Robert Bragg <robert@linux.intel.com>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "cogl.h"
#include "cogl-winsys-egl-private.h"
#include "cogl-winsys-private.h"
#include "cogl-feature-private.h"
#include "cogl-context-private.h"
#include "cogl-framebuffer.h"
#include "cogl-swap-chain-private.h"
#include "cogl-renderer-private.h"
#include "cogl-onscreen-template-private.h"
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
#include "cogl-xlib-renderer-private.h"
#include "cogl-xlib-display-private.h"
#endif
#ifdef COGL_HAS_XLIB_SUPPORT
#include "cogl-texture-pixmap-x11-private.h"
#include "cogl-texture-2d-private.h"
#endif
#include "cogl-private.h"
#ifdef COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
#include <wayland-client.h>
#include <wayland-egl.h>
#endif
#ifdef COGL_HAS_EGL_PLATFORM_ANDROID_SUPPORT
#include <android/native_window.h>
#endif
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <glib/gi18n-lib.h>
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
#include <X11/Xlib.h>
#define COGL_ONSCREEN_X11_EVENT_MASK StructureNotifyMask
#endif
#define MAX_EGL_CONFIG_ATTRIBS 30
typedef enum _CoglEGLWinsysFeature
{
COGL_EGL_WINSYS_FEATURE_SWAP_REGION =1L<<0,
COGL_EGL_WINSYS_FEATURE_EGL_IMAGE_FROM_X11_PIXMAP =1L<<1,
COGL_EGL_WINSYS_FEATURE_EGL_IMAGE_FROM_WAYLAND_BUFFER =1L<<2
} CoglEGLWinsysFeature;
typedef struct _CoglRendererEGL
{
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
CoglXlibRenderer _parent;
#endif
CoglEGLWinsysFeature private_features;
#ifdef COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
struct wl_display *wayland_display;
struct wl_compositor *wayland_compositor;
uint32_t wayland_event_mask;
#endif
EGLDisplay edpy;
EGLint egl_version_major;
EGLint egl_version_minor;
#ifdef COGL_HAS_EGL_PLATFORM_GDL_SUPPORT
gboolean gdl_initialized;
#endif
/* Function pointers for GLX specific extensions */
#define COGL_WINSYS_FEATURE_BEGIN(a, b, c, d)
#define COGL_WINSYS_FEATURE_FUNCTION(ret, name, args) \
ret (APIENTRY * pf_ ## name) args;
#define COGL_WINSYS_FEATURE_END()
#include "cogl-winsys-egl-feature-functions.h"
#undef COGL_WINSYS_FEATURE_BEGIN
#undef COGL_WINSYS_FEATURE_FUNCTION
#undef COGL_WINSYS_FEATURE_END
} CoglRendererEGL;
typedef struct _CoglDisplayEGL
{
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
CoglXlibDisplay _parent;
#endif
EGLContext egl_context;
#if defined (COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT)
EGLSurface dummy_surface;
#elif defined (COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
struct wl_surface *wayland_surface;
struct wl_egl_window *wayland_egl_native_window;
EGLSurface dummy_surface;
#elif defined (COGL_HAS_EGL_PLATFORM_POWERVR_NULL_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_GDL_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_ANDROID_SUPPORT)
EGLSurface egl_surface;
int egl_surface_width;
int egl_surface_height;
gboolean have_onscreen;
#else
#error "Unknown EGL platform"
#endif
EGLConfig egl_config;
gboolean found_egl_config;
gboolean stencil_disabled;
} CoglDisplayEGL;
typedef struct _CoglContextEGL
{
EGLSurface current_surface;
} CoglContextEGL;
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
typedef struct _CoglOnscreenXlib
{
Window xwin;
gboolean is_foreign_xwin;
} CoglOnscreenXlib;
#endif
typedef struct _CoglOnscreenEGL
{
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
CoglOnscreenXlib _parent;
#endif
#ifdef COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
struct wl_egl_window *wayland_egl_native_window;
struct wl_surface *wayland_surface;
#endif
EGLSurface egl_surface;
} CoglOnscreenEGL;
#ifdef EGL_KHR_image_pixmap
typedef struct _CoglTexturePixmapEGL
{
EGLImageKHR image;
CoglTexture *texture;
} CoglTexturePixmapEGL;
#endif
/* Define a set of arrays containing the functions required from GL
for each winsys feature */
#define COGL_WINSYS_FEATURE_BEGIN(name, namespaces, extension_names, \
egl_private_flags) \
static const CoglFeatureFunction \
cogl_egl_feature_ ## name ## _funcs[] = {
#define COGL_WINSYS_FEATURE_FUNCTION(ret, name, args) \
{ G_STRINGIFY (name), G_STRUCT_OFFSET (CoglRendererEGL, pf_ ## name) },
#define COGL_WINSYS_FEATURE_END() \
{ NULL, 0 }, \
};
#include "cogl-winsys-egl-feature-functions.h"
/* Define an array of features */
#undef COGL_WINSYS_FEATURE_BEGIN
#define COGL_WINSYS_FEATURE_BEGIN(name, namespaces, extension_names, \
egl_private_flags) \
{ 255, 255, 0, namespaces, extension_names, \
0, egl_private_flags, \
0, \
cogl_egl_feature_ ## name ## _funcs },
#undef COGL_WINSYS_FEATURE_FUNCTION
#define COGL_WINSYS_FEATURE_FUNCTION(ret, name, args)
#undef COGL_WINSYS_FEATURE_END
#define COGL_WINSYS_FEATURE_END()
static const CoglFeatureData winsys_feature_data[] =
{
#include "cogl-winsys-egl-feature-functions.h"
};
static CoglFuncPtr
_cogl_winsys_renderer_get_proc_address (CoglRenderer *renderer,
const char *name)
{
void *ptr;
ptr = eglGetProcAddress (name);
/* eglGetProcAddress doesn't support fetching core API so we need to
get that separately with GModule */
if (ptr == NULL)
g_module_symbol (renderer->libgl_module, name, &ptr);
return ptr;
}
#ifdef COGL_HAS_EGL_PLATFORM_ANDROID_SUPPORT
static ANativeWindow *android_native_window;
void
cogl_android_set_native_window (ANativeWindow *window)
{
_cogl_init ();
android_native_window = window;
}
#endif
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
static CoglOnscreen *
find_onscreen_for_xid (CoglContext *context, guint32 xid)
{
GList *l;
for (l = context->framebuffers; l; l = l->next)
{
CoglFramebuffer *framebuffer = l->data;
CoglOnscreenXlib *xlib_onscreen;
if (!framebuffer->type == COGL_FRAMEBUFFER_TYPE_ONSCREEN)
continue;
xlib_onscreen = COGL_ONSCREEN (framebuffer)->winsys;
if (xlib_onscreen->xwin == (Window)xid)
return COGL_ONSCREEN (framebuffer);
}
return NULL;
}
static CoglFilterReturn
event_filter_cb (XEvent *xevent, void *data)
{
CoglContext *context = data;
if (xevent->type == ConfigureNotify)
{
CoglOnscreen *onscreen =
find_onscreen_for_xid (context, xevent->xconfigure.window);
if (onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
_cogl_framebuffer_winsys_update_size (framebuffer,
xevent->xconfigure.width,
xevent->xconfigure.height);
}
}
return COGL_FILTER_CONTINUE;
}
#endif /* COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT */
static void
_cogl_winsys_renderer_disconnect (CoglRenderer *renderer)
{
CoglRendererEGL *egl_renderer = renderer->winsys;
#ifdef COGL_HAS_EGL_PLATFORM_GDL_SUPPORT
if (egl_renderer->gdl_initialized)
gdl_close ();
#endif
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
_cogl_xlib_renderer_disconnect (renderer);
#endif
eglTerminate (egl_renderer->edpy);
g_slice_free (CoglRendererEGL, egl_renderer);
}
#ifdef COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
static void
display_handle_global_cb (struct wl_display *display,
uint32_t id,
const char *interface,
uint32_t version,
void *data)
{
struct wl_compositor **compositor = data;
if (strcmp (interface, "wl_compositor") == 0)
*compositor = wl_compositor_create (display, id, 1);
}
static int
event_mask_update_cb (uint32_t mask, void *user_data)
{
CoglRendererEGL *egl_renderer = user_data;
egl_renderer->wayland_event_mask = mask;
return 0;
}
static void
sync_callback(void *data)
{
int *done = data;
*done = 1;
}
static void
force_roundtrip(struct wl_display *display)
{
int done = 0;
wl_display_sync_callback(display, sync_callback, &done);
wl_display_iterate(display, WL_DISPLAY_WRITABLE);
while (!done)
wl_display_iterate(display, WL_DISPLAY_READABLE);
}
#endif
/* Updates all the function pointers */
static void
check_egl_extensions (CoglRenderer *renderer)
{
CoglRendererEGL *egl_renderer = renderer->winsys;
const char *egl_extensions;
int i;
egl_extensions = eglQueryString (egl_renderer->edpy, EGL_EXTENSIONS);
COGL_NOTE (WINSYS, " EGL Extensions: %s", egl_extensions);
egl_renderer->private_features = 0;
for (i = 0; i < G_N_ELEMENTS (winsys_feature_data); i++)
if (_cogl_feature_check (renderer,
"EGL", winsys_feature_data + i, 0, 0,
COGL_DRIVER_GL, /* the driver isn't used */
egl_extensions,
egl_renderer))
{
egl_renderer->private_features |=
winsys_feature_data[i].feature_flags_private;
}
}
static gboolean
_cogl_winsys_renderer_connect (CoglRenderer *renderer,
GError **error)
{
CoglRendererEGL *egl_renderer;
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
CoglXlibRenderer *xlib_renderer;
#endif
EGLBoolean status;
#ifdef COGL_HAS_EGL_PLATFORM_GDL_SUPPORT
gdl_ret_t rc = GDL_SUCCESS;
gdl_display_info_t gdl_display_info;
#endif
renderer->winsys = g_slice_new0 (CoglRendererEGL);
egl_renderer = renderer->winsys;
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
xlib_renderer = renderer->winsys;
if (!_cogl_xlib_renderer_connect (renderer, error))
goto error;
egl_renderer->edpy =
eglGetDisplay ((NativeDisplayType) xlib_renderer->xdpy);
status = eglInitialize (egl_renderer->edpy,
&egl_renderer->egl_version_major,
&egl_renderer->egl_version_minor);
#elif defined (COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
/* The EGL API doesn't provide for a way to explicitly select a
* platform when the driver can support multiple. Mesa allows
* selection using an environment variable though so that's what
* we're doing here... */
setenv("EGL_PLATFORM", "wayland", 1);
if (renderer->foreign_wayland_display)
{
egl_renderer->wayland_display = renderer->foreign_wayland_display;
/* XXX: For now we have to assume that if a foreign display is
* given then so is a foreing compositor because there is no way
* to retrospectively be notified of the compositor. */
g_assert (renderer->foreign_wayland_compositor);
egl_renderer->wayland_compositor = renderer->foreign_wayland_compositor;
}
else
{
egl_renderer->wayland_display = wl_display_connect (NULL);
if (!egl_renderer->wayland_display)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"Failed to connect wayland display");
goto error;
}
/*
* XXX: For some reason, this can only be done after calling
* eglInitialize otherwise eglInitialize fails in
* dri2_initialize_wayland because dri2_dpy->wl_dpy->fd doesn't get
* updated.
*
* XXX: Hmm actually now it seems to work :-/
* There seems to be some fragility about when this is called.
*/
wl_display_add_global_listener (egl_renderer->wayland_display,
display_handle_global_cb,
&egl_renderer->wayland_compositor);
}
egl_renderer->edpy =
eglGetDisplay ((EGLNativeDisplayType)egl_renderer->wayland_display);
status = eglInitialize (egl_renderer->edpy,
&egl_renderer->egl_version_major,
&egl_renderer->egl_version_minor);
wl_display_flush (egl_renderer->wayland_display);
wl_display_get_fd (egl_renderer->wayland_display,
event_mask_update_cb, egl_renderer);
/* Wait until we have been notified about the compositor object */
while (!egl_renderer->wayland_compositor)
wl_display_iterate (egl_renderer->wayland_display,
egl_renderer->wayland_event_mask);
#else
egl_renderer->edpy = eglGetDisplay (EGL_DEFAULT_DISPLAY);
status = eglInitialize (egl_renderer->edpy,
&egl_renderer->egl_version_major,
&egl_renderer->egl_version_minor);
#endif
if (status != EGL_TRUE)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"Failed to initialize EGL");
goto error;
}
#ifdef COGL_HAS_EGL_PLATFORM_GDL_SUPPORT
/* Check we can talk to the GDL library */
rc = gdl_init (NULL);
if (rc != GDL_SUCCESS)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"GDL initialize failed. %s",
gdl_get_error_string (rc));
goto error;
}
rc = gdl_get_display_info (GDL_DISPLAY_ID_0, &gdl_display_info);
if (rc != GDL_SUCCESS)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"GDL failed to get display information: %s",
gdl_get_error_string (rc));
gdl_close ();
goto error;
}
gdl_close ();
#endif
check_egl_extensions (renderer);
return TRUE;
error:
_cogl_winsys_renderer_disconnect (renderer);
return FALSE;
}
static gboolean
update_winsys_features (CoglContext *context, GError **error)
{
CoglDisplayEGL *egl_display = context->display->winsys;
CoglRendererEGL *egl_renderer = context->display->renderer->winsys;
g_return_val_if_fail (egl_display->egl_context, FALSE);
memset (context->winsys_features, 0, sizeof (context->winsys_features));
check_egl_extensions (context->display->renderer);
if (!_cogl_context_update_features (context, error))
return FALSE;
#if defined (COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
context->feature_flags |= COGL_FEATURE_ONSCREEN_MULTIPLE;
COGL_FLAGS_SET (context->features,
COGL_FEATURE_ID_ONSCREEN_MULTIPLE, TRUE);
COGL_FLAGS_SET (context->winsys_features,
COGL_WINSYS_FEATURE_MULTIPLE_ONSCREEN,
TRUE);
#endif
if (egl_renderer->private_features & COGL_EGL_WINSYS_FEATURE_SWAP_REGION)
{
COGL_FLAGS_SET (context->winsys_features,
COGL_WINSYS_FEATURE_SWAP_REGION, TRUE);
COGL_FLAGS_SET (context->winsys_features,
COGL_WINSYS_FEATURE_SWAP_REGION_THROTTLE, TRUE);
}
return TRUE;
}
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
static XVisualInfo *
get_visual_info (CoglDisplay *display, EGLConfig egl_config)
{
CoglXlibRenderer *xlib_renderer = display->renderer->winsys;
CoglRendererEGL *egl_renderer = display->renderer->winsys;
XVisualInfo visinfo_template;
int template_mask = 0;
XVisualInfo *visinfo = NULL;
int visinfos_count;
EGLint visualid, red_size, green_size, blue_size, alpha_size;
eglGetConfigAttrib (egl_renderer->edpy, egl_config,
EGL_NATIVE_VISUAL_ID, &visualid);
if (visualid != 0)
{
visinfo_template.visualid = visualid;
template_mask |= VisualIDMask;
}
else
{
/* some EGL drivers don't implement the EGL_NATIVE_VISUAL_ID
* attribute, so attempt to find the closest match. */
eglGetConfigAttrib (egl_renderer->edpy, egl_config,
EGL_RED_SIZE, &red_size);
eglGetConfigAttrib (egl_renderer->edpy, egl_config,
EGL_GREEN_SIZE, &green_size);
eglGetConfigAttrib (egl_renderer->edpy, egl_config,
EGL_BLUE_SIZE, &blue_size);
eglGetConfigAttrib (egl_renderer->edpy, egl_config,
EGL_ALPHA_SIZE, &alpha_size);
visinfo_template.depth = red_size + green_size + blue_size + alpha_size;
template_mask |= VisualDepthMask;
visinfo_template.screen = DefaultScreen (xlib_renderer->xdpy);
template_mask |= VisualScreenMask;
}
visinfo = XGetVisualInfo (xlib_renderer->xdpy,
template_mask,
&visinfo_template,
&visinfos_count);
return visinfo;
}
#endif
static void
egl_attributes_from_framebuffer_config (CoglDisplay *display,
CoglFramebufferConfig *config,
gboolean needs_stencil_override,
EGLint *attributes)
{
int i = 0;
attributes[i++] = EGL_STENCIL_SIZE;
attributes[i++] = needs_stencil_override ? 2 : 0;
attributes[i++] = EGL_RED_SIZE;
attributes[i++] = 1;
attributes[i++] = EGL_GREEN_SIZE;
attributes[i++] = 1;
attributes[i++] = EGL_BLUE_SIZE;
attributes[i++] = 1;
attributes[i++] = EGL_ALPHA_SIZE;
attributes[i++] = config->swap_chain->has_alpha ? 1 : EGL_DONT_CARE;
attributes[i++] = EGL_DEPTH_SIZE;
attributes[i++] = 1;
/* XXX: Why does the GDL platform choose these by default? */
#ifdef COGL_HAS_EGL_PLATFORM_GDL_SUPPORT
attributes[i++] = EGL_BIND_TO_TEXTURE_RGBA;
attributes[i++] = EGL_TRUE;
attributes[i++] = EGL_BIND_TO_TEXTURE_RGB;
attributes[i++] = EGL_TRUE;
#endif
attributes[i++] = EGL_BUFFER_SIZE;
attributes[i++] = EGL_DONT_CARE;
attributes[i++] = EGL_RENDERABLE_TYPE;
attributes[i++] = (display->renderer->driver == COGL_DRIVER_GL ?
EGL_OPENGL_BIT :
display->renderer->driver == COGL_DRIVER_GLES1 ?
EGL_OPENGL_ES_BIT :
EGL_OPENGL_ES2_BIT);
attributes[i++] = EGL_SURFACE_TYPE;
attributes[i++] = EGL_WINDOW_BIT;
if (config->samples_per_pixel)
{
attributes[i++] = EGL_SAMPLE_BUFFERS;
attributes[i++] = 1;
attributes[i++] = EGL_SAMPLES;
attributes[i++] = config->samples_per_pixel;
}
attributes[i++] = EGL_NONE;
g_assert (i < MAX_EGL_CONFIG_ATTRIBS);
}
static gboolean
try_create_context (CoglDisplay *display,
gboolean with_stencil_buffer,
GError **error)
{
CoglDisplayEGL *egl_display = display->winsys;
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
CoglXlibDisplay *xlib_display = display->winsys;
CoglXlibRenderer *xlib_renderer = display->renderer->winsys;
#endif
CoglRendererEGL *egl_renderer = display->renderer->winsys;
EGLDisplay edpy;
EGLConfig config;
EGLint config_count = 0;
EGLBoolean status;
EGLint cfg_attribs[MAX_EGL_CONFIG_ATTRIBS];
EGLint attribs[3];
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
XVisualInfo *xvisinfo;
XSetWindowAttributes attrs;
#endif
#ifdef COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
struct wl_visual *wayland_visual;
#endif
const char *error_message;
egl_attributes_from_framebuffer_config (display,
&display->onscreen_template->config,
with_stencil_buffer,
cfg_attribs);
g_return_val_if_fail (egl_display->egl_context == NULL, TRUE);
edpy = egl_renderer->edpy;
if (display->renderer->driver == COGL_DRIVER_GL)
eglBindAPI (EGL_OPENGL_API);
status = eglChooseConfig (edpy,
cfg_attribs,
&config, 1,
&config_count);
if (status != EGL_TRUE || config_count == 0)
{
error_message = "Unable to find a usable EGL configuration";
goto fail;
}
egl_display->egl_config = config;
if (display->renderer->driver == COGL_DRIVER_GLES2)
{
attribs[0] = EGL_CONTEXT_CLIENT_VERSION;
attribs[1] = 2;
attribs[2] = EGL_NONE;
}
else
attribs[0] = EGL_NONE;
egl_display->egl_context = eglCreateContext (edpy,
config,
EGL_NO_CONTEXT,
attribs);
if (egl_display->egl_context == EGL_NO_CONTEXT)
{
error_message = "Unable to create a suitable EGL context";
goto fail;
}
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
xvisinfo = get_visual_info (display, config);
if (xvisinfo == NULL)
{
error_message = "Unable to find suitable X visual";
goto fail;
}
attrs.override_redirect = True;
attrs.colormap = XCreateColormap (xlib_renderer->xdpy,
DefaultRootWindow (xlib_renderer->xdpy),
xvisinfo->visual,
AllocNone);
attrs.border_pixel = 0;
xlib_display->dummy_xwin =
XCreateWindow (xlib_renderer->xdpy,
DefaultRootWindow (xlib_renderer->xdpy),
-100, -100, 1, 1,
0,
xvisinfo->depth,
CopyFromParent,
xvisinfo->visual,
CWOverrideRedirect |
CWColormap |
CWBorderPixel,
&attrs);
XFree (xvisinfo);
egl_display->dummy_surface =
eglCreateWindowSurface (edpy,
egl_display->egl_config,
(NativeWindowType) xlib_display->dummy_xwin,
NULL);
if (egl_display->dummy_surface == EGL_NO_SURFACE)
{
error_message = "Unable to create an EGL surface";
goto fail;
}
if (!eglMakeCurrent (edpy,
egl_display->dummy_surface,
egl_display->dummy_surface,
egl_display->egl_context))
{
error_message = "Unable to eglMakeCurrent with dummy surface";
goto fail;
}
#elif defined (COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
egl_display->wayland_surface =
wl_compositor_create_surface (egl_renderer->wayland_compositor);
if (!egl_display->wayland_surface)
{
error_message= "Failed to create a dummy wayland surface";
goto fail;
}
wayland_visual =
wl_display_get_premultiplied_argb_visual (egl_renderer->wayland_display);
egl_display->wayland_egl_native_window =
wl_egl_window_create (egl_display->wayland_surface,
1,
1,
wayland_visual);
if (!egl_display->wayland_egl_native_window)
{
error_message= "Failed to create a dummy wayland native egl surface";
goto fail;
}
egl_display->dummy_surface =
eglCreateWindowSurface (edpy,
egl_display->egl_config,
(EGLNativeWindowType)
egl_display->wayland_egl_native_window,
NULL);
if (egl_display->dummy_surface == EGL_NO_SURFACE)
{
error_message= "Unable to eglMakeCurrent with dummy surface";
goto fail;
}
if (!eglMakeCurrent (edpy,
egl_display->dummy_surface,
egl_display->dummy_surface,
egl_display->egl_context))
{
error_message = "Unable to eglMakeCurrent with dummy surface";
goto fail;
}
#elif defined (COGL_HAS_EGL_PLATFORM_ANDROID_SUPPORT)
{
EGLint format;
if (android_native_window == NULL)
{
error_message = "No ANativeWindow window specified with "
"cogl_android_set_native_window()";
goto fail;
}
/* EGL_NATIVE_VISUAL_ID is an attribute of the EGLConfig that is
* guaranteed to be accepted by ANativeWindow_setBuffersGeometry ().
* As soon as we picked a EGLConfig, we can safely reconfigure the
* ANativeWindow buffers to match, using EGL_NATIVE_VISUAL_ID. */
eglGetConfigAttrib (edpy, config, EGL_NATIVE_VISUAL_ID, &format);
ANativeWindow_setBuffersGeometry (android_native_window,
0,
0,
format);
egl_display->egl_surface =
eglCreateWindowSurface (edpy,
config,
(NativeWindowType) android_native_window,
NULL);
if (egl_display->egl_surface == EGL_NO_SURFACE)
{
error_message = "Unable to create EGL window surface";
goto fail;
}
if (!eglMakeCurrent (egl_renderer->edpy,
egl_display->egl_surface,
egl_display->egl_surface,
egl_display->egl_context))
{
error_message = "Unable to eglMakeCurrent with egl surface";
goto fail;
}
eglQuerySurface (egl_renderer->edpy,
egl_display->egl_surface,
EGL_WIDTH,
&egl_display->egl_surface_width);
eglQuerySurface (egl_renderer->edpy,
egl_display->egl_surface,
EGL_HEIGHT,
&egl_display->egl_surface_height);
}
#elif defined (COGL_HAS_EGL_PLATFORM_GDL_SUPPORT)
egl_display->egl_surface =
eglCreateWindowSurface (edpy,
config,
(NativeWindowType) display->gdl_plane,
NULL);
if (egl_display->egl_surface == EGL_NO_SURFACE)
{
error_message = "Unable to create EGL window surface";
goto fail;
}
if (!eglMakeCurrent (egl_renderer->edpy,
egl_display->egl_surface,
egl_display->egl_surface,
egl_display->egl_context))
{
error_message = "Unable to eglMakeCurrent with egl surface";
goto fail;
}
eglQuerySurface (egl_renderer->edpy,
egl_display->egl_surface,
EGL_WIDTH,
&egl_display->egl_surface_width);
eglQuerySurface (egl_renderer->edpy,
egl_display->egl_surface,
EGL_HEIGHT,
&egl_display->egl_surface_height);
#elif defined (COGL_HAS_EGL_PLATFORM_POWERVR_NULL_SUPPORT)
egl_display->egl_surface =
eglCreateWindowSurface (edpy,
config,
(NativeWindowType) NULL,
NULL);
if (egl_display->egl_surface == EGL_NO_SURFACE)
{
error_message = "Unable to create EGL window surface";
goto fail;
}
if (!eglMakeCurrent (egl_renderer->edpy,
egl_display->egl_surface,
egl_display->egl_surface,
egl_display->egl_context))
{
error_message = "Unable to eglMakeCurrent with egl surface";
goto fail;
}
eglQuerySurface (egl_renderer->edpy,
egl_display->egl_surface,
EGL_WIDTH,
&egl_display->egl_surface_width);
eglQuerySurface (egl_renderer->edpy,
egl_display->egl_surface,
EGL_HEIGHT,
&egl_display->egl_surface_height);
#else
#error "Unknown EGL platform"
#endif
return TRUE;
fail:
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"%s", error_message);
return FALSE;
}
static void
cleanup_context (CoglDisplay *display)
{
CoglDisplayEGL *egl_display = display->winsys;
CoglRendererEGL *egl_renderer = display->renderer->winsys;
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
CoglXlibDisplay *xlib_display = display->winsys;
CoglXlibRenderer *xlib_renderer = display->renderer->winsys;
#endif
if (egl_display->egl_context != EGL_NO_CONTEXT)
{
eglMakeCurrent (egl_renderer->edpy, EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT);
eglDestroyContext (egl_renderer->edpy, egl_display->egl_context);
egl_display->egl_context = EGL_NO_CONTEXT;
}
#if defined (COGL_HAS_EGL_PLATFORM_POWERVR_NULL_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_GDL_SUPPORT)
if (egl_display->egl_surface != EGL_NO_SURFACE)
{
eglDestroySurface (egl_renderer->edpy, egl_display->egl_surface);
egl_display->egl_surface = EGL_NO_SURFACE;
}
#elif COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
if (egl_display->dummy_surface != EGL_NO_SURFACE)
{
eglDestroySurface (egl_renderer->edpy, egl_display->dummy_surface);
egl_display->dummy_surface = EGL_NO_SURFACE;
}
if (xlib_display->dummy_xwin)
{
XDestroyWindow (xlib_renderer->xdpy, xlib_display->dummy_xwin);
xlib_display->dummy_xwin = None;
}
#elif defined (COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
if (egl_display->dummy_surface != EGL_NO_SURFACE)
{
eglDestroySurface (egl_renderer->edpy, egl_display->dummy_surface);
egl_display->dummy_surface = EGL_NO_SURFACE;
}
if (egl_display->wayland_egl_native_window)
{
wl_egl_window_destroy (egl_display->wayland_egl_native_window);
egl_display->wayland_egl_native_window = NULL;
}
if (egl_display->wayland_surface)
{
wl_surface_destroy (egl_display->wayland_surface);
egl_display->wayland_surface = NULL;
}
#endif
}
static gboolean
create_context (CoglDisplay *display, GError **error)
{
CoglDisplayEGL *egl_display = display->winsys;
/* Note: we don't just rely on eglChooseConfig to correctly
* report that the driver doesn't support a stencil buffer
* because we've seen PVR drivers that claim stencil buffer
* support according to the EGLConfig but then later fail
* when trying to create a context with such a config.
*/
if (try_create_context (display, TRUE, error))
{
egl_display->stencil_disabled = FALSE;
return TRUE;
}
else
{
g_clear_error (error);
cleanup_context (display);
egl_display->stencil_disabled = TRUE;
return try_create_context (display, FALSE, error);
}
}
static void
_cogl_winsys_display_destroy (CoglDisplay *display)
{
CoglDisplayEGL *egl_display = display->winsys;
g_return_if_fail (egl_display != NULL);
cleanup_context (display);
g_slice_free (CoglDisplayEGL, display->winsys);
display->winsys = NULL;
}
#ifdef COGL_HAS_EGL_PLATFORM_GDL_SUPPORT
static gboolean
gdl_plane_init (CoglDisplay *display, GError **error)
{
gboolean ret = TRUE;
gdl_color_space_t colorSpace = GDL_COLOR_SPACE_RGB;
gdl_pixel_format_t pixfmt = GDL_PF_ARGB_32;
gdl_rectangle_t dstRect;
gdl_display_info_t display_info;
gdl_ret_t rc = GDL_SUCCESS;
if (!display->gdl_plane)
{
g_set_error (error, COGL_WINSYS_ERROR, COGL_WINSYS_ERROR_CREATE_CONTEXT,
"No GDL plane specified with "
"cogl_gdl_display_set_plane");
return FALSE;
}
rc = gdl_init (NULL);
if (rc != GDL_SUCCESS)
{
g_set_error (error, COGL_WINSYS_ERROR, COGL_WINSYS_ERROR_CREATE_CONTEXT,
"GDL initialize failed. %s", gdl_get_error_string (rc));
return FALSE;
}
rc = gdl_get_display_info (GDL_DISPLAY_ID_0, &display_info);
if (rc != GDL_SUCCESS)
{
g_set_error (error, COGL_WINSYS_ERROR, COGL_WINSYS_ERROR_CREATE_CONTEXT,
"GDL failed to get display infomation: %s",
gdl_get_error_string (rc));
gdl_close ();
return FALSE;
}
dstRect.origin.x = 0;
dstRect.origin.y = 0;
dstRect.width = display_info.tvmode.width;
dstRect.height = display_info.tvmode.height;
/* Configure the plane attribute. */
rc = gdl_plane_reset (display->gdl_plane);
if (rc == GDL_SUCCESS)
rc = gdl_plane_config_begin (display->gdl_plane);
if (rc == GDL_SUCCESS)
rc = gdl_plane_set_attr (GDL_PLANE_SRC_COLOR_SPACE, &colorSpace);
if (rc == GDL_SUCCESS)
rc = gdl_plane_set_attr (GDL_PLANE_PIXEL_FORMAT, &pixfmt);
if (rc == GDL_SUCCESS)
rc = gdl_plane_set_attr (GDL_PLANE_DST_RECT, &dstRect);
/* Default to triple buffering if the swap_chain doesn't have an explicit
* length */
if (rc == GDL_SUCCESS)
{
if (display->onscreen_template->swap_chain &&
display->onscreen_template->swap_chain->length != -1)
rc = gdl_plane_set_uint (GDL_PLANE_NUM_GFX_SURFACES,
display->onscreen_template->swap_chain->length);
else
rc = gdl_plane_set_uint (GDL_PLANE_NUM_GFX_SURFACES, 3);
}
if (rc == GDL_SUCCESS)
rc = gdl_plane_config_end (GDL_FALSE);
else
gdl_plane_config_end (GDL_TRUE);
if (rc != GDL_SUCCESS)
{
g_set_error (error, COGL_WINSYS_ERROR, COGL_WINSYS_ERROR_CREATE_CONTEXT,
"GDL configuration failed: %s.", gdl_get_error_string (rc));
ret = FALSE;
}
gdl_close ();
return TRUE;
}
#endif
static gboolean
_cogl_winsys_display_setup (CoglDisplay *display,
GError **error)
{
CoglDisplayEGL *egl_display;
#ifdef COGL_HAS_WAYLAND_EGL_SERVER_SUPPORT
CoglRendererEGL *egl_renderer = display->renderer->winsys;
#endif
g_return_val_if_fail (display->winsys == NULL, FALSE);
egl_display = g_slice_new0 (CoglDisplayEGL);
display->winsys = egl_display;
#ifdef COGL_HAS_EGL_PLATFORM_GDL_SUPPORT
if (!gdl_plane_init (display, error))
goto error;
#endif
#ifdef COGL_HAS_WAYLAND_EGL_SERVER_SUPPORT
if (display->wayland_compositor_display)
{
struct wl_display *wayland_display = display->wayland_compositor_display;
egl_renderer->pf_eglBindWaylandDisplay (egl_renderer->edpy,
wayland_display);
}
#endif
if (!create_context (display, error))
goto error;
egl_display->found_egl_config = TRUE;
return TRUE;
error:
_cogl_winsys_display_destroy (display);
return FALSE;
}
static gboolean
_cogl_winsys_context_init (CoglContext *context, GError **error)
{
context->winsys = g_new0 (CoglContextEGL, 1);
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
cogl_xlib_renderer_add_filter (context->display->renderer,
event_filter_cb,
context);
#endif
return update_winsys_features (context, error);
}
static void
_cogl_winsys_context_deinit (CoglContext *context)
{
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
cogl_xlib_renderer_remove_filter (context->display->renderer,
event_filter_cb,
context);
#endif
g_free (context->winsys);
}
static gboolean
_cogl_winsys_onscreen_init (CoglOnscreen *onscreen,
GError **error)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
CoglContext *context = framebuffer->context;
CoglDisplay *display = context->display;
CoglDisplayEGL *egl_display = display->winsys;
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
CoglRendererEGL *egl_renderer = display->renderer->winsys;
CoglXlibRenderer *xlib_renderer = display->renderer->winsys;
CoglOnscreenXlib *xlib_onscreen;
Window xwin;
#endif
#ifdef COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
CoglRendererEGL *egl_renderer = display->renderer->winsys;
#endif
CoglOnscreenEGL *egl_onscreen;
#ifdef COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
struct wl_visual *wayland_visual;
#endif
EGLint attributes[MAX_EGL_CONFIG_ATTRIBS];
EGLConfig egl_config;
EGLint config_count = 0;
EGLBoolean status;
gboolean need_stencil =
egl_display->stencil_disabled ? FALSE : framebuffer->config.need_stencil;
g_return_val_if_fail (egl_display->egl_context, FALSE);
egl_attributes_from_framebuffer_config (display,
&framebuffer->config,
need_stencil,
attributes);
status = eglChooseConfig (egl_renderer->edpy,
attributes,
&egl_config, 1,
&config_count);
if (status != EGL_TRUE || config_count == 0)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"Failed to find a suitable EGL configuration");
return FALSE;
}
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
/* FIXME: We need to explicitly Select for ConfigureNotify events.
* For foreign windows we need to be careful not to mess up any
* existing event mask.
* We need to document that for windows we create then toolkits
* must be careful not to clear event mask bits that we select.
*/
/* XXX: Note we ignore the user's original width/height when
* given a foreign X window. */
if (onscreen->foreign_xid)
{
Status status;
CoglXlibTrapState state;
XWindowAttributes attr;
int xerror;
xwin = onscreen->foreign_xid;
_cogl_xlib_renderer_trap_errors (display->renderer, &state);
status = XGetWindowAttributes (xlib_renderer->xdpy, xwin, &attr);
xerror = _cogl_xlib_renderer_untrap_errors (display->renderer, &state);
if (status == 0 || xerror)
{
char message[1000];
XGetErrorText (xlib_renderer->xdpy, xerror,
message, sizeof (message));
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"Unable to query geometry of foreign xid 0x%08lX: %s",
xwin, message);
return FALSE;
}
_cogl_framebuffer_winsys_update_size (framebuffer,
attr.width, attr.height);
/* Make sure the app selects for the events we require... */
onscreen->foreign_update_mask_callback (onscreen,
COGL_ONSCREEN_X11_EVENT_MASK,
onscreen->foreign_update_mask_data);
}
else
{
int width;
int height;
CoglXlibTrapState state;
XVisualInfo *xvisinfo;
XSetWindowAttributes xattr;
unsigned long mask;
int xerror;
width = cogl_framebuffer_get_width (framebuffer);
height = cogl_framebuffer_get_height (framebuffer);
_cogl_xlib_renderer_trap_errors (display->renderer, &state);
xvisinfo = get_visual_info (display, egl_config);
if (xvisinfo == NULL)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"Unable to retrieve the X11 visual of context's "
"fbconfig");
return FALSE;
}
/* window attributes */
xattr.background_pixel = WhitePixel (xlib_renderer->xdpy,
DefaultScreen (xlib_renderer->xdpy));
xattr.border_pixel = 0;
/* XXX: is this an X resource that we are leaking‽... */
xattr.colormap = XCreateColormap (xlib_renderer->xdpy,
DefaultRootWindow (xlib_renderer->xdpy),
xvisinfo->visual,
AllocNone);
xattr.event_mask = COGL_ONSCREEN_X11_EVENT_MASK;
mask = CWBorderPixel | CWColormap | CWEventMask;
xwin = XCreateWindow (xlib_renderer->xdpy,
DefaultRootWindow (xlib_renderer->xdpy),
0, 0,
width, height,
0,
xvisinfo->depth,
InputOutput,
xvisinfo->visual,
mask, &xattr);
XFree (xvisinfo);
XSync (xlib_renderer->xdpy, False);
xerror = _cogl_xlib_renderer_untrap_errors (display->renderer, &state);
if (xerror)
{
char message[1000];
XGetErrorText (xlib_renderer->xdpy, xerror,
message, sizeof (message));
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"X error while creating Window for CoglOnscreen: %s",
message);
return FALSE;
}
}
#endif
onscreen->winsys = g_slice_new0 (CoglOnscreenEGL);
egl_onscreen = onscreen->winsys;
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
xlib_onscreen = onscreen->winsys;
xlib_onscreen->xwin = xwin;
xlib_onscreen->is_foreign_xwin = onscreen->foreign_xid ? TRUE : FALSE;
egl_onscreen->egl_surface =
eglCreateWindowSurface (egl_renderer->edpy,
egl_config,
(NativeWindowType) xlib_onscreen->xwin,
NULL);
#elif defined (COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
egl_onscreen->wayland_surface =
wl_compositor_create_surface (egl_renderer->wayland_compositor);
if (!egl_onscreen->wayland_surface)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"Error while creating wayland surface for CoglOnscreen");
return FALSE;
}
wayland_visual =
wl_display_get_premultiplied_argb_visual (egl_renderer->wayland_display);
egl_onscreen->wayland_egl_native_window =
wl_egl_window_create (egl_onscreen->wayland_surface,
cogl_framebuffer_get_width (framebuffer),
cogl_framebuffer_get_height (framebuffer),
wayland_visual);
if (!egl_onscreen->wayland_egl_native_window)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"Error while creating wayland egl native window "
"for CoglOnscreen");
return FALSE;
}
egl_onscreen->egl_surface =
eglCreateWindowSurface (egl_renderer->edpy,
egl_config,
(EGLNativeWindowType)
egl_onscreen->wayland_egl_native_window,
NULL);
wl_surface_map_toplevel (egl_onscreen->wayland_surface);
#elif defined (COGL_HAS_EGL_PLATFORM_POWERVR_NULL_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_ANDROID_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_GDL_SUPPORT)
if (egl_display->have_onscreen)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"EGL platform only supports a single onscreen window");
return FALSE;
}
egl_onscreen->egl_surface = egl_display->egl_surface;
_cogl_framebuffer_winsys_update_size (framebuffer,
egl_display->egl_surface_width,
egl_display->egl_surface_height);
egl_display->have_onscreen = TRUE;
#else
#error "Unknown EGL platform"
#endif
return TRUE;
}
static void
_cogl_winsys_onscreen_deinit (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
CoglContext *context = framebuffer->context;
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
CoglXlibRenderer *xlib_renderer = context->display->renderer->winsys;
CoglXlibTrapState old_state;
CoglOnscreenXlib *xlib_onscreen = onscreen->winsys;
#elif defined (COGL_HAS_EGL_PLATFORM_POWERVR_NULL_SUPPORT)
CoglDisplayEGL *egl_display = context->display->winsys;
#endif
CoglRendererEGL *egl_renderer = context->display->renderer->winsys;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
/* If we never successfully allocated then there's nothing to do */
if (egl_onscreen == NULL)
return;
if (egl_onscreen->egl_surface != EGL_NO_SURFACE)
{
if (eglDestroySurface (egl_renderer->edpy, egl_onscreen->egl_surface)
== EGL_FALSE)
g_warning ("Failed to destroy EGL surface");
egl_onscreen->egl_surface = EGL_NO_SURFACE;
}
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_NULL_SUPPORT
egl_display->have_onscreen = FALSE;
#endif
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
_cogl_xlib_renderer_trap_errors (context->display->renderer, &old_state);
if (!xlib_onscreen->is_foreign_xwin && xlib_onscreen->xwin != None)
{
XDestroyWindow (xlib_renderer->xdpy, xlib_onscreen->xwin);
xlib_onscreen->xwin = None;
}
else
xlib_onscreen->xwin = None;
XSync (xlib_renderer->xdpy, False);
if (_cogl_xlib_renderer_untrap_errors (context->display->renderer,
&old_state) != Success)
g_warning ("X Error while destroying X window");
#endif
#ifdef COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
if (egl_onscreen->wayland_egl_native_window)
{
wl_egl_window_destroy (egl_onscreen->wayland_egl_native_window);
egl_onscreen->wayland_egl_native_window = NULL;
}
if (egl_onscreen->wayland_surface)
{
wl_surface_destroy (egl_onscreen->wayland_surface);
egl_onscreen->wayland_surface = NULL;
}
#endif
g_slice_free (CoglOnscreenEGL, onscreen->winsys);
onscreen->winsys = NULL;
}
static void
_cogl_winsys_onscreen_bind (CoglOnscreen *onscreen)
{
CoglContext *context = COGL_FRAMEBUFFER (onscreen)->context;
CoglContextEGL *egl_context = context->winsys;
CoglDisplayEGL *egl_display = context->display->winsys;
CoglRendererEGL *egl_renderer = context->display->renderer->winsys;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
if (egl_context->current_surface == egl_onscreen->egl_surface)
return;
if (G_UNLIKELY (!onscreen))
{
#if defined (COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
eglMakeCurrent (egl_renderer->edpy,
egl_display->dummy_surface,
egl_display->dummy_surface,
egl_display->egl_context);
egl_context->current_surface = egl_display->dummy_surface;
#elif defined (COGL_HAS_EGL_PLATFORM_POWERVR_NULL_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_ANDROID_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_GDL_SUPPORT)
return;
#else
#error "Unknown EGL platform"
#endif
}
else
{
eglMakeCurrent (egl_renderer->edpy,
egl_onscreen->egl_surface,
egl_onscreen->egl_surface,
egl_display->egl_context);
egl_context->current_surface = egl_onscreen->egl_surface;
}
if (onscreen->swap_throttled)
eglSwapInterval (egl_renderer->edpy, 1);
else
eglSwapInterval (egl_renderer->edpy, 0);
}
static void
_cogl_winsys_onscreen_swap_region (CoglOnscreen *onscreen,
const int *user_rectangles,
int n_rectangles)
{
CoglContext *context = COGL_FRAMEBUFFER (onscreen)->context;
CoglRendererEGL *egl_renderer = context->display->renderer->winsys;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
int framebuffer_height = cogl_framebuffer_get_height (framebuffer);
int *rectangles = g_alloca (sizeof (int) * n_rectangles * 4);
int i;
/* eglSwapBuffersRegion expects rectangles relative to the bottom left corner
* but we are given rectangles relative to the top left so we need to flip
* them... */
memcpy (rectangles, user_rectangles, sizeof (int) * n_rectangles * 4);
for (i = 0; i < n_rectangles; i++)
{
int *rect = &rectangles[4 * i];
rect[1] = framebuffer_height - rect[1] - rect[3];
}
if (egl_renderer->pf_eglSwapBuffersRegion (egl_renderer->edpy,
egl_onscreen->egl_surface,
n_rectangles,
rectangles) == EGL_FALSE)
g_warning ("Error reported by eglSwapBuffersRegion");
}
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
static void
_cogl_winsys_onscreen_set_visibility (CoglOnscreen *onscreen,
gboolean visibility)
{
CoglContext *context = COGL_FRAMEBUFFER (onscreen)->context;
CoglXlibRenderer *xlib_renderer = context->display->renderer->winsys;
CoglOnscreenXlib *xlib_onscreen = onscreen->winsys;
if (visibility)
XMapWindow (xlib_renderer->xdpy, xlib_onscreen->xwin);
else
XUnmapWindow (xlib_renderer->xdpy, xlib_onscreen->xwin);
}
#endif
static void
_cogl_winsys_onscreen_swap_buffers (CoglOnscreen *onscreen)
{
CoglContext *context = COGL_FRAMEBUFFER (onscreen)->context;
CoglRendererEGL *egl_renderer = context->display->renderer->winsys;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
eglSwapBuffers (egl_renderer->edpy, egl_onscreen->egl_surface);
#if 0
/* XXX: I think really this should be done automatically for
* us in eglSwapBuffers since the spec says eglSwapBuffers
* implicitly flushes client commands. */
while (egl_renderer->wayland_event_mask & WL_DISPLAY_WRITABLE)
wl_display_iterate (egl_renderer->wayland_display,
WL_DISPLAY_WRITABLE);
#endif
}
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
static guint32
_cogl_winsys_onscreen_x11_get_window_xid (CoglOnscreen *onscreen)
{
CoglOnscreenXlib *xlib_onscreen = onscreen->winsys;
return xlib_onscreen->xwin;
}
#endif
static void
_cogl_winsys_onscreen_update_swap_throttled (CoglOnscreen *onscreen)
{
CoglContext *context = COGL_FRAMEBUFFER (onscreen)->context;
CoglContextEGL *egl_context = context->winsys;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
if (egl_context->current_surface != egl_onscreen->egl_surface)
return;
egl_context->current_surface = EGL_NO_SURFACE;
_cogl_winsys_onscreen_bind (onscreen);
}
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
/* XXX: This is a particularly hacky _cogl_winsys interface... */
static XVisualInfo *
_cogl_winsys_xlib_get_visual_info (void)
{
CoglDisplayEGL *egl_display;
_COGL_GET_CONTEXT (ctx, NULL);
g_return_val_if_fail (ctx->display->winsys, FALSE);
egl_display = ctx->display->winsys;
if (!egl_display->found_egl_config)
return NULL;
return get_visual_info (ctx->display, egl_display->egl_config);
}
#endif
static EGLDisplay
_cogl_winsys_context_egl_get_egl_display (CoglContext *context)
{
CoglRendererEGL *egl_renderer = context->display->renderer->winsys;
return egl_renderer->edpy;
}
#if defined (COGL_HAS_XLIB_SUPPORT) && defined (EGL_KHR_image_pixmap)
static gboolean
_cogl_winsys_texture_pixmap_x11_create (CoglTexturePixmapX11 *tex_pixmap)
{
CoglTexturePixmapEGL *egl_tex_pixmap;
EGLint attribs[] = {EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, EGL_NONE};
CoglPixelFormat texture_format;
CoglRendererEGL *egl_renderer;
/* FIXME: It should be possible to get to a CoglContext from any
* CoglTexture pointer. */
_COGL_GET_CONTEXT (ctx, FALSE);
egl_renderer = ctx->display->renderer->winsys;
if (!(egl_renderer->private_features &
COGL_EGL_WINSYS_FEATURE_EGL_IMAGE_FROM_X11_PIXMAP) ||
!(ctx->private_feature_flags &
COGL_PRIVATE_FEATURE_TEXTURE_2D_FROM_EGL_IMAGE))
{
tex_pixmap->winsys = NULL;
return FALSE;
}
egl_tex_pixmap = g_new0 (CoglTexturePixmapEGL, 1);
egl_tex_pixmap->image =
_cogl_egl_create_image (ctx,
EGL_NATIVE_PIXMAP_KHR,
(EGLClientBuffer)tex_pixmap->pixmap,
attribs);
if (egl_tex_pixmap->image == EGL_NO_IMAGE_KHR)
{
g_free (egl_tex_pixmap);
return FALSE;
}
texture_format = (tex_pixmap->depth >= 32 ?
COGL_PIXEL_FORMAT_RGBA_8888_PRE :
COGL_PIXEL_FORMAT_RGB_888);
egl_tex_pixmap->texture = COGL_TEXTURE (
_cogl_egl_texture_2d_new_from_image (ctx,
tex_pixmap->width,
tex_pixmap->height,
texture_format,
egl_tex_pixmap->image,
NULL));
tex_pixmap->winsys = egl_tex_pixmap;
return TRUE;
}
static void
_cogl_winsys_texture_pixmap_x11_free (CoglTexturePixmapX11 *tex_pixmap)
{
CoglTexturePixmapEGL *egl_tex_pixmap;
/* FIXME: It should be possible to get to a CoglContext from any
* CoglTexture pointer. */
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
if (!tex_pixmap->winsys)
return;
egl_tex_pixmap = tex_pixmap->winsys;
if (egl_tex_pixmap->texture)
cogl_object_unref (egl_tex_pixmap->texture);
if (egl_tex_pixmap->image != EGL_NO_IMAGE_KHR)
_cogl_egl_destroy_image (ctx, egl_tex_pixmap->image);
tex_pixmap->winsys = NULL;
g_free (egl_tex_pixmap);
}
static gboolean
_cogl_winsys_texture_pixmap_x11_update (CoglTexturePixmapX11 *tex_pixmap,
gboolean needs_mipmap)
{
if (needs_mipmap)
return FALSE;
return TRUE;
}
static void
_cogl_winsys_texture_pixmap_x11_damage_notify (CoglTexturePixmapX11 *tex_pixmap)
{
}
static CoglHandle
_cogl_winsys_texture_pixmap_x11_get_texture (CoglTexturePixmapX11 *tex_pixmap)
{
CoglTexturePixmapEGL *egl_tex_pixmap = tex_pixmap->winsys;
return egl_tex_pixmap->texture;
}
#endif /* defined (COGL_HAS_XLIB_SUPPORT) && defined (EGL_KHR_image_pixmap) */
static CoglWinsysVtable _cogl_winsys_vtable =
{
.id = COGL_WINSYS_ID_EGL,
.name = "EGL",
.renderer_get_proc_address = _cogl_winsys_renderer_get_proc_address,
.renderer_connect = _cogl_winsys_renderer_connect,
.renderer_disconnect = _cogl_winsys_renderer_disconnect,
.display_setup = _cogl_winsys_display_setup,
.display_destroy = _cogl_winsys_display_destroy,
.context_init = _cogl_winsys_context_init,
.context_deinit = _cogl_winsys_context_deinit,
.context_egl_get_egl_display =
_cogl_winsys_context_egl_get_egl_display,
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
.xlib_get_visual_info = _cogl_winsys_xlib_get_visual_info,
#endif
.onscreen_init = _cogl_winsys_onscreen_init,
.onscreen_deinit = _cogl_winsys_onscreen_deinit,
.onscreen_bind = _cogl_winsys_onscreen_bind,
.onscreen_swap_buffers = _cogl_winsys_onscreen_swap_buffers,
.onscreen_swap_region = _cogl_winsys_onscreen_swap_region,
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
.onscreen_set_visibility = _cogl_winsys_onscreen_set_visibility,
#endif
.onscreen_update_swap_throttled =
_cogl_winsys_onscreen_update_swap_throttled,
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
.onscreen_x11_get_window_xid =
_cogl_winsys_onscreen_x11_get_window_xid,
#endif
#if defined (COGL_HAS_XLIB_SUPPORT) && defined (EGL_KHR_image_pixmap)
/* X11 tfp support... */
/* XXX: instead of having a rather monolithic winsys vtable we could
* perhaps look for a way to separate these... */
.texture_pixmap_x11_create =
_cogl_winsys_texture_pixmap_x11_create,
.texture_pixmap_x11_free =
_cogl_winsys_texture_pixmap_x11_free,
.texture_pixmap_x11_update =
_cogl_winsys_texture_pixmap_x11_update,
.texture_pixmap_x11_damage_notify =
_cogl_winsys_texture_pixmap_x11_damage_notify,
.texture_pixmap_x11_get_texture =
_cogl_winsys_texture_pixmap_x11_get_texture,
#endif /* defined (COGL_HAS_XLIB_SUPPORT) && defined (EGL_KHR_image_pixmap) */
};
/* XXX: we use a function because no doubt someone will complain
* about using c99 member initializers because they aren't portable
* to windows. We want to avoid having to rigidly follow the real
* order of members since some members are #ifdefd and we'd have
* to mirror the #ifdefing to add padding etc. For any winsys that
* can assume the platform has a sane compiler then we can just use
* c99 initializers for insane platforms they can initialize
* the members by name in a function.
*/
const CoglWinsysVtable *
_cogl_winsys_egl_get_vtable (void)
{
return &_cogl_winsys_vtable;
}
/* FIXME: we should have a separate wayland file for these entry
* points... */
#ifdef COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
void
cogl_wayland_renderer_set_foreign_display (CoglRenderer *renderer,
struct wl_display *display)
{
g_return_if_fail (cogl_is_renderer (renderer));
/* NB: Renderers are considered immutable once connected */
g_return_if_fail (!renderer->connected);
renderer->foreign_wayland_display = display;
}
struct wl_display *
cogl_wayland_renderer_get_display (CoglRenderer *renderer)
{
g_return_val_if_fail (cogl_is_renderer (renderer), NULL);
if (renderer->foreign_wayland_display)
return renderer->foreign_wayland_display;
else if (renderer->connected)
{
CoglRendererEGL *egl_renderer = renderer->winsys;
return egl_renderer->wayland_display;
}
else
return NULL;
}
void
cogl_wayland_renderer_set_foreign_compositor (CoglRenderer *renderer,
struct wl_compositor *compositor)
{
g_return_if_fail (cogl_is_renderer (renderer));
/* NB: Renderers are considered immutable once connected */
g_return_if_fail (!renderer->connected);
renderer->foreign_wayland_compositor = compositor;
}
struct wl_compositor *
cogl_wayland_renderer_get_compositor (CoglRenderer *renderer)
{
g_return_val_if_fail (cogl_is_renderer (renderer), NULL);
if (renderer->foreign_wayland_compositor)
return renderer->foreign_wayland_compositor;
else if (renderer->connected)
{
CoglRendererEGL *egl_renderer = renderer->winsys;
return egl_renderer->wayland_compositor;
}
else
return NULL;
}
struct wl_surface *
cogl_wayland_onscreen_get_surface (CoglOnscreen *onscreen)
{
CoglFramebuffer *fb;
fb = COGL_FRAMEBUFFER (onscreen);
if (fb->allocated)
{
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
return egl_onscreen->wayland_surface;
}
else
return NULL;
}
#endif /* COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT */
#ifdef EGL_KHR_image_base
EGLImageKHR
_cogl_egl_create_image (CoglContext *ctx,
EGLenum target,
EGLClientBuffer buffer,
const EGLint *attribs)
{
CoglDisplayEGL *egl_display = ctx->display->winsys;
CoglRendererEGL *egl_renderer = ctx->display->renderer->winsys;
EGLContext egl_ctx;
g_return_val_if_fail (egl_renderer->pf_eglCreateImage, EGL_NO_IMAGE_KHR);
/* The EGL_KHR_image_pixmap spec explicitly states that EGL_NO_CONTEXT must
* always be used in conjunction with the EGL_NATIVE_PIXMAP_KHR target */
#ifdef EGL_KHR_image_pixmap
if (target == EGL_NATIVE_PIXMAP_KHR)
egl_ctx = EGL_NO_CONTEXT;
else
#endif
egl_ctx = egl_display->egl_context;
return egl_renderer->pf_eglCreateImage (egl_renderer->edpy,
egl_ctx,
target,
buffer,
attribs);
}
void
_cogl_egl_destroy_image (CoglContext *ctx,
EGLImageKHR image)
{
CoglRendererEGL *egl_renderer = ctx->display->renderer->winsys;
g_return_if_fail (egl_renderer->pf_eglDestroyImage);
egl_renderer->pf_eglDestroyImage (egl_renderer->edpy, image);
}
#endif
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