1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "GlLayer.h" 18 19 #include "Caches.h" 20 #include "RenderNode.h" 21 #include "renderstate/RenderState.h" 22 #include "utils/TraceUtils.h" 23 24 #include <utils/Log.h> 25 26 #define ATRACE_LAYER_WORK(label) \ 27 ATRACE_FORMAT("%s HW Layer DisplayList %s %ux%u", \ 28 label, \ 29 (renderNode.get() != NULL) ? renderNode->getName() : "", \ 30 getWidth(), getHeight()) 31 32 namespace android { 33 namespace uirenderer { 34 35 GlLayer::GlLayer(RenderState& renderState, uint32_t layerWidth, uint32_t layerHeight, 36 SkColorFilter* colorFilter, int alpha, SkBlendMode mode, bool blend) 37 : Layer(renderState, Api::OpenGL, colorFilter, alpha, mode) 38 , caches(Caches::getInstance()) 39 , texture(caches) { 40 texture.mWidth = layerWidth; 41 texture.mHeight = layerHeight; 42 texture.blend = blend; 43 } 44 45 GlLayer::~GlLayer() { 46 // There's a rare possibility that Caches could have been destroyed already 47 // since this method is queued up as a task. 48 // Since this is a reset method, treat this as non-fatal. 49 if (caches.isInitialized() && texture.mId) { 50 texture.deleteTexture(); 51 } 52 } 53 54 void GlLayer::onGlContextLost() { 55 texture.deleteTexture(); 56 } 57 58 void GlLayer::setRenderTarget(GLenum renderTarget) { 59 if (renderTarget != getRenderTarget()) { 60 // new render target: bind with new target, and update filter/wrap 61 texture.mTarget = renderTarget; 62 if (texture.mId) { 63 caches.textureState().bindTexture(texture.target(), texture.mId); 64 } 65 texture.setFilter(GL_NEAREST, false, true); 66 texture.setWrap(GL_CLAMP_TO_EDGE, false, true); 67 } 68 } 69 70 void GlLayer::generateTexture() { 71 if (!texture.mId) { 72 glGenTextures(1, &texture.mId); 73 } 74 } 75 76 }; // namespace uirenderer 77 }; // namespace android 78