void FramebufferGL::syncState(const Framebuffer::DirtyBits &dirtyBits)
{
// Don't need to sync state for the default FBO.
if (mIsDefault)
{
return;
}
mStateManager->bindFramebuffer(GL_FRAMEBUFFER, mFramebufferID);
for (auto dirtyBit : angle::IterateBitSet(dirtyBits))
{
switch (dirtyBit)
{
case Framebuffer::DIRTY_BIT_DEPTH_ATTACHMENT:
BindFramebufferAttachment(mFunctions, GL_DEPTH_ATTACHMENT,
mState.getDepthAttachment());
break;
case Framebuffer::DIRTY_BIT_STENCIL_ATTACHMENT:
BindFramebufferAttachment(mFunctions, GL_STENCIL_ATTACHMENT,
mState.getStencilAttachment());
break;
case Framebuffer::DIRTY_BIT_DRAW_BUFFERS:
{
const auto &drawBuffers = mState.getDrawBufferStates();
mFunctions->drawBuffers(static_cast<GLsizei>(drawBuffers.size()),
drawBuffers.data());
break;
}
case Framebuffer::DIRTY_BIT_READ_BUFFER:
mFunctions->readBuffer(mState.getReadBufferState());
break;
default:
{
ASSERT(Framebuffer::DIRTY_BIT_COLOR_ATTACHMENT_0 == 0 &&
dirtyBit < Framebuffer::DIRTY_BIT_COLOR_ATTACHMENT_MAX);
size_t index =
static_cast<size_t>(dirtyBit - Framebuffer::DIRTY_BIT_COLOR_ATTACHMENT_0);
BindFramebufferAttachment(mFunctions,
static_cast<GLenum>(GL_COLOR_ATTACHMENT0 + index),
mState.getColorAttachment(index));
break;
}
}
}
}
void FramebufferGL::onUpdateColorAttachment(size_t index)
{
if (!mIsDefault)
{
mStateManager->bindFramebuffer(GL_FRAMEBUFFER, mFramebufferID);
BindFramebufferAttachment(mFunctions, GL_COLOR_ATTACHMENT0 + static_cast<GLenum>(index),
mData.getColorAttachment(static_cast<unsigned int>(index)));
}
}
void FramebufferGL::onUpdateDepthStencilAttachment()
{
if (!mIsDefault)
{
mStateManager->bindFramebuffer(GL_FRAMEBUFFER, mFramebufferID);
BindFramebufferAttachment(mFunctions,
GL_DEPTH_STENCIL_ATTACHMENT,
mData.getDepthStencilAttachment());
}
}