void WebGLFramebuffer::EnsureColorAttachPoints(size_t colorAttachmentId)
{
MOZ_ASSERT(colorAttachmentId < WebGLContext::kMaxColorAttachments);
if (colorAttachmentId < ColorAttachmentCount())
return;
while (ColorAttachmentCount() < WebGLContext::kMaxColorAttachments) {
GLenum nextAttachPoint = LOCAL_GL_COLOR_ATTACHMENT0 + ColorAttachmentCount();
mMoreColorAttachments.AppendElement(AttachPoint(this, nextAttachPoint));
}
MOZ_ASSERT(ColorAttachmentCount() == WebGLContext::kMaxColorAttachments);
}
bool
WebGLFramebuffer::HasCompletePlanes(GLbitfield mask)
{
if (CheckFramebufferStatus() != LOCAL_GL_FRAMEBUFFER_COMPLETE)
return false;
MOZ_ASSERT(mContext->mBoundDrawFramebuffer == this ||
mContext->mBoundReadFramebuffer == this);
bool hasPlanes = true;
if (mask & LOCAL_GL_COLOR_BUFFER_BIT) {
hasPlanes &= ColorAttachmentCount() &&
ColorAttachment(0).IsDefined();
}
if (mask & LOCAL_GL_DEPTH_BUFFER_BIT) {
hasPlanes &= DepthAttachment().IsDefined() ||
DepthStencilAttachment().IsDefined();
}
if (mask & LOCAL_GL_STENCIL_BUFFER_BIT) {
hasPlanes &= StencilAttachment().IsDefined() ||
DepthStencilAttachment().IsDefined();
}
return hasPlanes;
}
void
WebGLFramebuffer::FinalizeAttachments() const
{
gl::GLContext* gl = mContext->gl;
for (size_t i = 0; i < ColorAttachmentCount(); i++) {
ColorAttachment(i).FinalizeAttachment(gl, LOCAL_GL_COLOR_ATTACHMENT0+i);
}
DepthAttachment().FinalizeAttachment(gl, LOCAL_GL_DEPTH_ATTACHMENT);
StencilAttachment().FinalizeAttachment(gl, LOCAL_GL_STENCIL_ATTACHMENT);
DepthStencilAttachment().FinalizeAttachment(gl,
LOCAL_GL_DEPTH_STENCIL_ATTACHMENT);
FinalizeDrawAndReadBuffers(gl, ColorAttachment(0).IsDefined());
}