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/*
* Copyright (C) 2023 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#if ENABLE(WEBGL)
#include "WebGLDefaultFramebuffer.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_ALLOCATED_IMPL(WebGLDefaultFramebuffer);
std::unique_ptr<WebGLDefaultFramebuffer> WebGLDefaultFramebuffer::create(WebGLRenderingContextBase& context, IntSize size)
{
auto instance = std::unique_ptr<WebGLDefaultFramebuffer> { new WebGLDefaultFramebuffer(context) };
instance->reshape(size);
return instance;
}
WebGLDefaultFramebuffer::WebGLDefaultFramebuffer(WebGLRenderingContextBase& context)
: m_context(context)
{
auto attributes = context.protectedGraphicsContextGL()->contextAttributes();
m_hasStencil = attributes.stencil;
m_hasDepth = attributes.depth;
if (!attributes.preserveDrawingBuffer) {
m_unpreservedBuffers = GraphicsContextGL::COLOR_BUFFER_BIT;
if (m_hasStencil)
m_unpreservedBuffers |= GraphicsContextGL::STENCIL_BUFFER_BIT;
if (m_hasDepth)
m_unpreservedBuffers |= GraphicsContextGL::DEPTH_BUFFER_BIT;
}
}
IntSize WebGLDefaultFramebuffer::size() const
{
return m_context->protectedGraphicsContextGL()->getInternalFramebufferSize();
}
void WebGLDefaultFramebuffer::reshape(IntSize size)
{
m_context->protectedGraphicsContextGL()->reshape(size.width(), size.height());
}
void WebGLDefaultFramebuffer::markBuffersClear(GCGLbitfield clearBuffers)
{
m_dirtyBuffers &= ~clearBuffers;
}
void WebGLDefaultFramebuffer::markAllUnpreservedBuffersDirty()
{
m_dirtyBuffers = m_unpreservedBuffers;
}
void WebGLDefaultFramebuffer::markAllBuffersDirty()
{
m_dirtyBuffers |= GraphicsContextGL::COLOR_BUFFER_BIT;
if (m_hasStencil)
m_dirtyBuffers |= GraphicsContextGL::STENCIL_BUFFER_BIT;
if (m_hasDepth)
m_dirtyBuffers |= GraphicsContextGL::DEPTH_BUFFER_BIT;
}
}
#endif
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