Hash :
8c12874c
Author :
Date :
2024-09-12T11:26:29
vulkan: add double buffer swapchain for fifo mode. Double buffer swapchain usually drop the performance. But at B* the default fps cap for silver device still at 30fps. This change is for reduce latency. Bug: b/311022968 Change-Id: Ida4044f439bbe3f235d53f5d1d2f945533cbb094 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5858255 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
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//
// Copyright 2016 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.
//
// SurfaceNULL.cpp:
// Implements the class methods for SurfaceNULL.
//
#include "libANGLE/renderer/null/SurfaceNULL.h"
#include "common/debug.h"
#include "libANGLE/renderer/null/FramebufferNULL.h"
namespace rx
{
SurfaceNULL::SurfaceNULL(const egl::SurfaceState &surfaceState) : SurfaceImpl(surfaceState) {}
SurfaceNULL::~SurfaceNULL() {}
egl::Error SurfaceNULL::initialize(const egl::Display *display)
{
return egl::NoError();
}
egl::Error SurfaceNULL::swap(const gl::Context *context)
{
return egl::NoError();
}
egl::Error SurfaceNULL::postSubBuffer(const gl::Context *context,
EGLint x,
EGLint y,
EGLint width,
EGLint height)
{
return egl::NoError();
}
egl::Error SurfaceNULL::querySurfacePointerANGLE(EGLint attribute, void **value)
{
UNREACHABLE();
return egl::NoError();
}
egl::Error SurfaceNULL::bindTexImage(const gl::Context *context,
gl::Texture *texture,
EGLint buffer)
{
return egl::NoError();
}
egl::Error SurfaceNULL::releaseTexImage(const gl::Context *context, EGLint buffer)
{
return egl::NoError();
}
egl::Error SurfaceNULL::getSyncValues(EGLuint64KHR *ust, EGLuint64KHR *msc, EGLuint64KHR *sbc)
{
UNIMPLEMENTED();
return egl::EglBadAccess();
}
egl::Error SurfaceNULL::getMscRate(EGLint *numerator, EGLint *denominator)
{
UNIMPLEMENTED();
return egl::EglBadAccess();
}
void SurfaceNULL::setSwapInterval(const egl::Display *display, EGLint interval) {}
EGLint SurfaceNULL::getWidth() const
{
// TODO(geofflang): Read from an actual window?
return 100;
}
EGLint SurfaceNULL::getHeight() const
{
// TODO(geofflang): Read from an actual window?
return 100;
}
EGLint SurfaceNULL::isPostSubBufferSupported() const
{
return EGL_TRUE;
}
EGLint SurfaceNULL::getSwapBehavior() const
{
return EGL_BUFFER_PRESERVED;
}
angle::Result SurfaceNULL::initializeContents(const gl::Context *context,
GLenum binding,
const gl::ImageIndex &imageIndex)
{
return angle::Result::Continue;
}
egl::Error SurfaceNULL::attachToFramebuffer(const gl::Context *context,
gl::Framebuffer *framebuffer)
{
return egl::NoError();
}
egl::Error SurfaceNULL::detachFromFramebuffer(const gl::Context *context,
gl::Framebuffer *framebuffer)
{
return egl::NoError();
}
} // namespace rx