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
GlLayer(RenderState & renderState,uint32_t layerWidth,uint32_t layerHeight,SkColorFilter * colorFilter,int alpha,SkBlendMode mode,bool blend)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
~GlLayer()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
onGlContextLost()54 void GlLayer::onGlContextLost() {
55 texture.deleteTexture();
56 }
57
setRenderTarget(GLenum renderTarget)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
generateTexture()70 void GlLayer::generateTexture() {
71 if (!texture.mId) {
72 glGenTextures(1, &texture.mId);
73 }
74 }
75
76 }; // namespace uirenderer
77 }; // namespace android
78