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//
// Copyright (c) 2015 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// PBufferSurfaceCGL.cpp: an implementation of egl::Surface for PBuffers for the CLG backend,
// currently implemented using renderbuffers
#include "libANGLE/renderer/gl/cgl/PbufferSurfaceCGL.h"
#include "common/debug.h"
#include "libANGLE/renderer/gl/FunctionsGL.h"
#include "libANGLE/renderer/gl/FramebufferGL.h"
#include "libANGLE/renderer/gl/RendererGL.h"
#include "libANGLE/renderer/gl/StateManagerGL.h"
namespace rx
{
PbufferSurfaceCGL::PbufferSurfaceCGL(const egl::SurfaceState &state,
RendererGL *renderer,
EGLint width,
EGLint height,
const FunctionsGL *functions)
: SurfaceGL(state, renderer),
mWidth(width),
mHeight(height),
mFunctions(functions),
mStateManager(renderer->getStateManager()),
mRenderer(renderer),
mFramebuffer(0),
mColorRenderbuffer(0),
mDSRenderbuffer(0)
{
}
PbufferSurfaceCGL::~PbufferSurfaceCGL()
{
if (mFramebuffer != 0)
{
mFunctions->deleteFramebuffers(1, &mFramebuffer);
mFramebuffer = 0;
}
if (mColorRenderbuffer != 0)
{
mFunctions->deleteRenderbuffers(1, &mColorRenderbuffer);
mColorRenderbuffer = 0;
}
if (mDSRenderbuffer != 0)
{
mFunctions->deleteRenderbuffers(1, &mDSRenderbuffer);
mDSRenderbuffer = 0;
}
}
egl::Error PbufferSurfaceCGL::initialize()
{
mFunctions->genRenderbuffers(1, &mColorRenderbuffer);
mStateManager->bindRenderbuffer(GL_RENDERBUFFER, mColorRenderbuffer);
mFunctions->renderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, mWidth, mHeight);
mFunctions->genRenderbuffers(1, &mDSRenderbuffer);
mStateManager->bindRenderbuffer(GL_RENDERBUFFER, mDSRenderbuffer);
mFunctions->renderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, mWidth, mHeight);
mFunctions->genFramebuffers(1, &mFramebuffer);
mStateManager->bindFramebuffer(GL_FRAMEBUFFER, mFramebuffer);
mFunctions->framebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER,
mColorRenderbuffer);
mFunctions->framebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT,
GL_RENDERBUFFER, mDSRenderbuffer);
return egl::Error(EGL_SUCCESS);
}
egl::Error PbufferSurfaceCGL::makeCurrent()
{
return egl::Error(EGL_SUCCESS);
}
egl::Error PbufferSurfaceCGL::swap()
{
return egl::Error(EGL_SUCCESS);
}
egl::Error PbufferSurfaceCGL::postSubBuffer(EGLint x, EGLint y, EGLint width, EGLint height)
{
return egl::Error(EGL_SUCCESS);
}
egl::Error PbufferSurfaceCGL::querySurfacePointerANGLE(EGLint attribute, void **value)
{
UNIMPLEMENTED();
return egl::Error(EGL_SUCCESS);
}
egl::Error PbufferSurfaceCGL::bindTexImage(gl::Texture *texture, EGLint buffer)
{
UNIMPLEMENTED();
return egl::Error(EGL_SUCCESS);
}
egl::Error PbufferSurfaceCGL::releaseTexImage(EGLint buffer)
{
UNIMPLEMENTED();
return egl::Error(EGL_SUCCESS);
}
void PbufferSurfaceCGL::setSwapInterval(EGLint interval)
{
}
EGLint PbufferSurfaceCGL::getWidth() const
{
return mWidth;
}
EGLint PbufferSurfaceCGL::getHeight() const
{
return mHeight;
}
EGLint PbufferSurfaceCGL::isPostSubBufferSupported() const
{
UNIMPLEMENTED();
return EGL_FALSE;
}
EGLint PbufferSurfaceCGL::getSwapBehavior() const
{
return EGL_BUFFER_PRESERVED;
}
FramebufferImpl *PbufferSurfaceCGL::createDefaultFramebuffer(const gl::FramebufferState &state)
{
// TODO(cwallez) assert it happens only once?
return new FramebufferGL(mFramebuffer, state, mFunctions, mRenderer->getWorkarounds(),
mRenderer->getBlitter(), mStateManager);
}
}
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