bool
GLBlitHelper::BlitSurfaceTextureImage(layers::SurfaceTextureImage* stImage)
{
AndroidSurfaceTexture* surfaceTexture = stImage->GetSurfaceTexture();
ScopedBindTextureUnit boundTU(mGL, LOCAL_GL_TEXTURE0);
if (NS_FAILED(surfaceTexture->Attach(mGL, PR_MillisecondsToInterval(ATTACH_WAIT_MS))))
return false;
// UpdateTexImage() changes the EXTERNAL binding, so save it here
// so we can restore it after.
int oldBinding = 0;
mGL->fGetIntegerv(LOCAL_GL_TEXTURE_BINDING_EXTERNAL, &oldBinding);
surfaceTexture->UpdateTexImage();
gfx::Matrix4x4 transform;
surfaceTexture->GetTransformMatrix(transform);
mGL->fUniformMatrix4fv(mTextureTransformLoc, 1, false, &transform._11);
mGL->fDrawArrays(LOCAL_GL_TRIANGLE_STRIP, 0, 4);
surfaceTexture->Detach();
mGL->fBindTexture(LOCAL_GL_TEXTURE_EXTERNAL, oldBinding);
return true;
}
bool
GLBlitHelper::BlitSurfaceTextureImage(layers::SurfaceTextureImage* stImage)
{
AndroidSurfaceTexture* surfaceTexture = stImage->GetData()->mSurfTex;
bool yFlip = stImage->GetData()->mInverted;
ScopedBindTextureUnit boundTU(mGL, LOCAL_GL_TEXTURE0);
mGL->fClear(LOCAL_GL_COLOR_BUFFER_BIT);
if (NS_FAILED(surfaceTexture->Attach(mGL))) {
return false;
}
// UpdateTexImage() changes the EXTERNAL binding, so save it here
// so we can restore it after.
int oldBinding = 0;
mGL->fGetIntegerv(LOCAL_GL_TEXTURE_BINDING_EXTERNAL, &oldBinding);
surfaceTexture->UpdateTexImage();
gfx::Matrix4x4 transform;
surfaceTexture->GetTransformMatrix(transform);
mGL->fUniformMatrix4fv(mTextureTransformLoc, 1, false, &transform._11);
mGL->fUniform1f(mYFlipLoc, yFlip ? 1.0f : 0.0f);
mGL->fDrawArrays(LOCAL_GL_TRIANGLE_STRIP, 0, 4);
surfaceTexture->Detach();
mGL->fBindTexture(LOCAL_GL_TEXTURE_EXTERNAL, oldBinding);
return true;
}
// native method for QtSurfaceTexture.java
static void notifyFrameAvailable(JNIEnv* , jobject, int id)
{
AndroidSurfaceTexture *obj = g_objectMap.value(id, 0);
if (obj)
Q_EMIT obj->frameAvailable();
}