| // |
| // Copyright 2020 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. |
| // |
| |
| // PBufferSurfaceEAGL.cpp: an implementation of egl::Surface for PBuffers for the EAGL backend, |
| // currently implemented using renderbuffers |
| |
| #import "common/platform.h" |
| |
| #if defined(ANGLE_ENABLE_EAGL) |
| |
| # include "libANGLE/renderer/gl/eagl/PbufferSurfaceEAGL.h" |
| |
| # include "common/debug.h" |
| # include "libANGLE/renderer/gl/FramebufferGL.h" |
| # include "libANGLE/renderer/gl/FunctionsGL.h" |
| # include "libANGLE/renderer/gl/RendererGL.h" |
| # include "libANGLE/renderer/gl/StateManagerGL.h" |
| |
| namespace rx |
| { |
| |
| PbufferSurfaceEAGL::PbufferSurfaceEAGL(const egl::SurfaceState &state, |
| RendererGL *renderer, |
| EGLint width, |
| EGLint height) |
| : SurfaceGL(state), |
| mWidth(width), |
| mHeight(height), |
| mFunctions(renderer->getFunctions()), |
| mStateManager(renderer->getStateManager()), |
| mColorRenderbuffer(0), |
| mDSRenderbuffer(0) |
| {} |
| |
| PbufferSurfaceEAGL::~PbufferSurfaceEAGL() |
| { |
| if (mColorRenderbuffer != 0) |
| { |
| mFunctions->deleteRenderbuffers(1, &mColorRenderbuffer); |
| mColorRenderbuffer = 0; |
| } |
| if (mDSRenderbuffer != 0) |
| { |
| mFunctions->deleteRenderbuffers(1, &mDSRenderbuffer); |
| mDSRenderbuffer = 0; |
| } |
| } |
| |
| egl::Error PbufferSurfaceEAGL::initialize(const egl::Display *display) |
| { |
| 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); |
| |
| return egl::NoError(); |
| } |
| |
| egl::Error PbufferSurfaceEAGL::makeCurrent(const gl::Context *context) |
| { |
| return egl::NoError(); |
| } |
| |
| egl::Error PbufferSurfaceEAGL::swap(const gl::Context *context) |
| { |
| return egl::NoError(); |
| } |
| |
| egl::Error PbufferSurfaceEAGL::postSubBuffer(const gl::Context *context, |
| EGLint x, |
| EGLint y, |
| EGLint width, |
| EGLint height) |
| { |
| return egl::NoError(); |
| } |
| |
| egl::Error PbufferSurfaceEAGL::querySurfacePointerANGLE(EGLint attribute, void **value) |
| { |
| UNIMPLEMENTED(); |
| return egl::NoError(); |
| } |
| |
| egl::Error PbufferSurfaceEAGL::bindTexImage(const gl::Context *context, |
| gl::Texture *texture, |
| EGLint buffer) |
| { |
| ERR() << "PbufferSurfaceEAGL::bindTexImage"; |
| UNIMPLEMENTED(); |
| return egl::NoError(); |
| } |
| |
| egl::Error PbufferSurfaceEAGL::releaseTexImage(const gl::Context *context, EGLint buffer) |
| { |
| UNIMPLEMENTED(); |
| return egl::NoError(); |
| } |
| |
| void PbufferSurfaceEAGL::setSwapInterval(EGLint interval) {} |
| |
| EGLint PbufferSurfaceEAGL::getWidth() const |
| { |
| return mWidth; |
| } |
| |
| EGLint PbufferSurfaceEAGL::getHeight() const |
| { |
| return mHeight; |
| } |
| |
| EGLint PbufferSurfaceEAGL::isPostSubBufferSupported() const |
| { |
| UNIMPLEMENTED(); |
| return EGL_FALSE; |
| } |
| |
| EGLint PbufferSurfaceEAGL::getSwapBehavior() const |
| { |
| return EGL_BUFFER_PRESERVED; |
| } |
| |
| FramebufferImpl *PbufferSurfaceEAGL::createDefaultFramebuffer(const gl::Context *context, |
| const gl::FramebufferState &state) |
| { |
| const FunctionsGL *functions = GetFunctionsGL(context); |
| StateManagerGL *stateManager = GetStateManagerGL(context); |
| |
| GLuint framebuffer = 0; |
| functions->genFramebuffers(1, &framebuffer); |
| stateManager->bindFramebuffer(GL_FRAMEBUFFER, framebuffer); |
| functions->framebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, |
| mColorRenderbuffer); |
| functions->framebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, |
| mDSRenderbuffer); |
| |
| return new FramebufferGL(state, framebuffer, true, false); |
| } |
| |
| } // namespace rx |
| |
| #endif // defined(ANGLE_ENABLE_EAGL) |