mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
115 lines
3.4 KiB
C++
115 lines
3.4 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "EGLUtils.h"
|
|
|
|
#include "GLContextEGL.h"
|
|
|
|
namespace mozilla {
|
|
namespace gl {
|
|
|
|
bool
|
|
DoesEGLContextSupportSharingWithEGLImage(GLContext* gl)
|
|
{
|
|
return sEGLLibrary.HasKHRImageBase() &&
|
|
sEGLLibrary.HasKHRImageTexture2D() &&
|
|
gl->IsExtensionSupported(GLContext::OES_EGL_image);
|
|
}
|
|
|
|
EGLImage
|
|
CreateEGLImage(GLContext* gl, GLuint tex)
|
|
{
|
|
MOZ_ASSERT(DoesEGLContextSupportSharingWithEGLImage(gl));
|
|
|
|
EGLClientBuffer clientBuffer = (EGLClientBuffer)((uint64_t)tex);
|
|
EGLContext eglContext = GLContextEGL::Cast(gl)->mContext;
|
|
EGLImage image = sEGLLibrary.fCreateImage(EGL_DISPLAY(),
|
|
eglContext,
|
|
LOCAL_EGL_GL_TEXTURE_2D,
|
|
clientBuffer,
|
|
nullptr);
|
|
return image;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
// EGLImageWrapper
|
|
|
|
/*static*/ EGLImageWrapper*
|
|
EGLImageWrapper::Create(GLContext* gl, GLuint tex)
|
|
{
|
|
MOZ_ASSERT(DoesEGLContextSupportSharingWithEGLImage(gl));
|
|
|
|
GLLibraryEGL& library = sEGLLibrary;
|
|
EGLDisplay display = EGL_DISPLAY();
|
|
EGLContext eglContext = GLContextEGL::Cast(gl)->mContext;
|
|
EGLClientBuffer clientBuffer = (EGLClientBuffer)((uint64_t)tex);
|
|
EGLImage image = library.fCreateImage(display,
|
|
eglContext,
|
|
LOCAL_EGL_GL_TEXTURE_2D,
|
|
clientBuffer,
|
|
nullptr);
|
|
if (!image) {
|
|
#ifdef DEBUG
|
|
printf_stderr("Could not create EGL images: ERROR (0x%04x)\n",
|
|
sEGLLibrary.fGetError());
|
|
#endif
|
|
return nullptr;
|
|
}
|
|
|
|
return new EGLImageWrapper(library, display, image);
|
|
}
|
|
|
|
EGLImageWrapper::~EGLImageWrapper()
|
|
{
|
|
mLibrary.fDestroyImage(mDisplay, mImage);
|
|
}
|
|
|
|
bool
|
|
EGLImageWrapper::FenceSync(GLContext* gl)
|
|
{
|
|
MOZ_ASSERT(!mSync);
|
|
|
|
if (mLibrary.IsExtensionSupported(GLLibraryEGL::KHR_fence_sync)) {
|
|
mSync = mLibrary.fCreateSync(mDisplay,
|
|
LOCAL_EGL_SYNC_FENCE,
|
|
nullptr);
|
|
// We need to flush to make sure the sync object enters the command stream;
|
|
// we can't use EGL_SYNC_FLUSH_COMMANDS_BIT at wait time, because the wait
|
|
// happens on a different thread/context.
|
|
gl->fFlush();
|
|
}
|
|
|
|
if (!mSync) {
|
|
// we failed to create one, so just do a finish
|
|
gl->fFinish();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
EGLImageWrapper::ClientWaitSync()
|
|
{
|
|
if (!mSync) {
|
|
// if we have no sync object, then we did a Finish() earlier
|
|
return true;
|
|
}
|
|
|
|
// wait at most 1 second; this should really be never/rarely hit
|
|
const uint64_t ns_per_ms = 1000 * 1000;
|
|
EGLTime timeout = 1000 * ns_per_ms;
|
|
|
|
EGLint result = mLibrary.fClientWaitSync(mDisplay,
|
|
mSync,
|
|
0,
|
|
timeout);
|
|
mLibrary.fDestroySync(mDisplay, mSync);
|
|
mSync = nullptr;
|
|
|
|
return result == LOCAL_EGL_CONDITION_SATISFIED;
|
|
}
|
|
|
|
} // namespace gl
|
|
} // namespace mozilla
|