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/*
* Copyright (C) 2017 Igalia, S.L.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "GLContext.h"
#if USE(WPE_RENDERER)
#include "PlatformDisplayLibWPE.h"
#if USE(LIBEPOXY)
// FIXME: For now default to the GBM EGL platform, but this should really be
// somehow deducible from the build configuration.
#define __GBM__ 1
#include <epoxy/egl.h>
#else
#if PLATFORM(WAYLAND)
// These includes need to be in this order because wayland-egl.h defines WL_EGL_PLATFORM
// and eglplatform.h, included by egl.h, checks that to decide whether it's Wayland platform.
#include <wayland-egl.h>
#endif
#include <EGL/egl.h>
#endif
#include <wpe/wpe-egl.h>
namespace WebCore {
GLContext::GLContext(PlatformDisplay& display, EGLContext context, EGLSurface surface, EGLConfig config, struct wpe_renderer_backend_egl_offscreen_target* target)
: m_display(display)
, m_context(context)
, m_surface(surface)
, m_config(config)
, m_type(WindowSurface)
, m_wpeTarget(target)
{
}
EGLSurface GLContext::createWindowSurfaceWPE(EGLDisplay display, EGLConfig config, GLNativeWindowType window)
{
// EGLNativeWindowType changes depending on the EGL implementation, reinterpret_cast
// would work for pointers, and static_cast for numeric types only; so use a plain
// C cast expression which works in all possible cases.
return eglCreateWindowSurface(display, config, (EGLNativeWindowType) window, nullptr);
}
std::unique_ptr<GLContext> GLContext::createWPEContext(PlatformDisplay& platformDisplay, EGLContext sharingContext)
{
EGLConfig config;
if (!getEGLConfig(platformDisplay, &config, WindowSurface)) {
WTFLogAlways("Cannot obtain EGL WPE context configuration: %s\n", lastErrorString());
return nullptr;
}
auto* target = wpe_renderer_backend_egl_offscreen_target_create();
if (!target)
return nullptr;
wpe_renderer_backend_egl_offscreen_target_initialize(target, downcast<PlatformDisplayLibWPE>(platformDisplay).backend());
EGLNativeWindowType window = wpe_renderer_backend_egl_offscreen_target_get_native_window(target);
if (!window) {
wpe_renderer_backend_egl_offscreen_target_destroy(target);
return nullptr;
}
EGLContext context = createContextForEGLVersion(platformDisplay, config, sharingContext);
if (context == EGL_NO_CONTEXT) {
WTFLogAlways("Cannot create EGL WPE context: %s\n", lastErrorString());
wpe_renderer_backend_egl_offscreen_target_destroy(target);
return nullptr;
}
EGLDisplay display = platformDisplay.eglDisplay();
EGLSurface surface = eglCreateWindowSurface(display, config, static_cast<EGLNativeWindowType>(window), nullptr);
if (surface == EGL_NO_SURFACE) {
WTFLogAlways("Cannot create EGL WPE window surface: %s\n", lastErrorString());
eglDestroyContext(display, context);
wpe_renderer_backend_egl_offscreen_target_destroy(target);
return nullptr;
}
return makeUnique<GLContext>(platformDisplay, context, surface, config, target);
}
void GLContext::destroyWPETarget()
{
if (m_wpeTarget)
wpe_renderer_backend_egl_offscreen_target_destroy(m_wpeTarget);
}
} // namespace WebCore
#endif // USE(WPE_RENDERER)
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