bool
GLContextWGL::BindTex2DOffscreen(GLContext *aOffscreen)
{
if (aOffscreen->GetContextType() != ContextTypeWGL) {
NS_WARNING("non-WGL context");
return false;
}
if (!aOffscreen->IsOffscreen()) {
NS_WARNING("non-offscreen context");
return false;
}
GLContextWGL *offs = static_cast<GLContextWGL*>(aOffscreen);
if (offs->mPBuffer) {
BOOL ok = sWGLLib[mLibType].fBindTexImage(offs->mPBuffer,
LOCAL_WGL_FRONT_LEFT_ARB);
if (!ok) {
NS_WARNING("CanvasLayerOGL::Updated wglBindTexImageARB failed");
return false;
}
} else if (offs->mOffscreenTexture) {
GLContext::ContextFlags flag =
sWGLLib[mLibType].GetLibraryType() == WGLLibrary::MESA_LLVMPIPE_LIB
? GLContext::ContextFlagsMesaLLVMPipe
: GLContext::ContextFlagsNone;
if (offs->GetSharedContext() != GLContextProviderWGL::GetGlobalContext(flag))
{
NS_WARNING("offscreen FBO context can only be bound with context sharing!");
return false;
}
fBindTexture(LOCAL_GL_TEXTURE_2D, offs->mOffscreenTexture);
} else {
NS_WARNING("don't know how to bind this!");
return false;
}
return true;
}
PRBool
GLContextWGL::BindTex2DOffscreen(GLContext *aOffscreen)
{
if (aOffscreen->GetContextType() != ContextTypeWGL) {
NS_WARNING("non-WGL context");
return PR_FALSE;
}
if (!aOffscreen->IsOffscreen()) {
NS_WARNING("non-offscreen context");
return PR_FALSE;
}
GLContextWGL *offs = static_cast<GLContextWGL*>(aOffscreen);
if (offs->mPBuffer) {
BOOL ok = sWGLLibrary.fBindTexImage(offs->mPBuffer,
LOCAL_WGL_FRONT_LEFT_ARB);
if (!ok) {
NS_WARNING("CanvasLayerOGL::Updated wglBindTexImageARB failed");
return PR_FALSE;
}
} else if (offs->mOffscreenTexture) {
if (offs->GetSharedContext() != GLContextProviderWGL::GetGlobalContext())
{
NS_WARNING("offscreen FBO context can only be bound with context sharing!");
return PR_FALSE;
}
fBindTexture(LOCAL_GL_TEXTURE_2D, offs->mOffscreenTexture);
} else {
NS_WARNING("don't know how to bind this!");
return PR_FALSE;
}
return PR_TRUE;
}