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116 lines
3.7 KiB
116 lines
3.7 KiB
/*
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* Copyright 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define ATRACE_TAG ATRACE_TAG_GRAPHICS
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#include "GLFramebuffer.h"
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#include <GLES/gl.h>
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#include <GLES/glext.h>
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#include <GLES2/gl2ext.h>
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#include <GLES3/gl3.h>
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#include <gui/DebugEGLImageTracker.h>
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#include <nativebase/nativebase.h>
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#include <utils/Trace.h>
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#include "GLESRenderEngine.h"
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namespace android {
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namespace renderengine {
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namespace gl {
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GLFramebuffer::GLFramebuffer(GLESRenderEngine& engine)
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: mEngine(engine), mEGLDisplay(engine.getEGLDisplay()), mEGLImage(EGL_NO_IMAGE_KHR) {
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glGenTextures(1, &mTextureName);
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glGenFramebuffers(1, &mFramebufferName);
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}
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GLFramebuffer::~GLFramebuffer() {
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setNativeWindowBuffer(nullptr, false, false);
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glDeleteFramebuffers(1, &mFramebufferName);
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glDeleteTextures(1, &mTextureName);
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}
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bool GLFramebuffer::setNativeWindowBuffer(ANativeWindowBuffer* nativeBuffer, bool isProtected,
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const bool useFramebufferCache) {
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ATRACE_CALL();
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if (mEGLImage != EGL_NO_IMAGE_KHR) {
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if (!usingFramebufferCache) {
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eglDestroyImageKHR(mEGLDisplay, mEGLImage);
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DEBUG_EGL_IMAGE_TRACKER_DESTROY();
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}
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mEGLImage = EGL_NO_IMAGE_KHR;
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mBufferWidth = 0;
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mBufferHeight = 0;
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}
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if (nativeBuffer) {
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mEGLImage = mEngine.createFramebufferImageIfNeeded(nativeBuffer, isProtected,
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useFramebufferCache);
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if (mEGLImage == EGL_NO_IMAGE_KHR) {
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return false;
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}
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usingFramebufferCache = useFramebufferCache;
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mBufferWidth = nativeBuffer->width;
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mBufferHeight = nativeBuffer->height;
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}
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return true;
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}
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void GLFramebuffer::allocateBuffers(uint32_t width, uint32_t height, void* data) {
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ATRACE_CALL();
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glBindTexture(GL_TEXTURE_2D, mTextureName);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
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mBufferHeight = height;
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mBufferWidth = width;
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mEngine.checkErrors("Allocating Fbo texture");
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bind();
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextureName, 0);
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mStatus = glCheckFramebufferStatus(GL_FRAMEBUFFER);
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unbind();
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glBindTexture(GL_TEXTURE_2D, 0);
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if (mStatus != GL_FRAMEBUFFER_COMPLETE) {
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ALOGE("Frame buffer is not complete. Error %d", mStatus);
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}
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}
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void GLFramebuffer::bind() const {
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glBindFramebuffer(GL_FRAMEBUFFER, mFramebufferName);
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}
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void GLFramebuffer::bindAsReadBuffer() const {
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glBindFramebuffer(GL_READ_FRAMEBUFFER, mFramebufferName);
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}
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void GLFramebuffer::bindAsDrawBuffer() const {
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, mFramebufferName);
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}
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void GLFramebuffer::unbind() const {
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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}
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} // namespace gl
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} // namespace renderengine
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} // namespace android
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