No-fail invokeFunctor
Bug: 15513308
Bug: 15449247
Change-Id: I13a29f9c8d4975cdda6dcb33b6332c2555ff0f7c
diff --git a/libs/hwui/RenderState.cpp b/libs/hwui/RenderState.cpp
new file mode 100644
index 0000000..97f379d
--- /dev/null
+++ b/libs/hwui/RenderState.cpp
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "RenderState.h"
+
+namespace android {
+namespace uirenderer {
+
+RenderState::RenderState()
+ : mCaches(NULL)
+ , mViewportWidth(0)
+ , mViewportHeight(0)
+ , mFramebuffer(0) {
+}
+
+RenderState::~RenderState() {
+}
+
+void RenderState::onGLContextCreated() {
+ // This is delayed because the first access of Caches makes GL calls
+ mCaches = &Caches::getInstance();
+ mCaches->init();
+}
+
+void RenderState::setViewport(GLsizei width, GLsizei height) {
+ mViewportWidth = width;
+ mViewportHeight = height;
+ glViewport(0, 0, mViewportWidth, mViewportHeight);
+}
+
+
+void RenderState::getViewport(GLsizei* outWidth, GLsizei* outHeight) {
+ *outWidth = mViewportWidth;
+ *outHeight = mViewportHeight;
+}
+
+void RenderState::bindFramebuffer(GLuint fbo) {
+ if (mFramebuffer != fbo) {
+ mFramebuffer = fbo;
+ glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer);
+ }
+}
+
+void RenderState::invokeFunctor(Functor* functor, DrawGlInfo::Mode mode, DrawGlInfo* info) {
+ interruptForFunctorInvoke();
+ (*functor)(mode, info);
+ resumeFromFunctorInvoke();
+}
+
+void RenderState::interruptForFunctorInvoke() {
+ if (mCaches->currentProgram) {
+ if (mCaches->currentProgram->isInUse()) {
+ mCaches->currentProgram->remove();
+ mCaches->currentProgram = NULL;
+ }
+ }
+ mCaches->resetActiveTexture();
+ mCaches->unbindMeshBuffer();
+ mCaches->unbindIndicesBuffer();
+ mCaches->resetVertexPointers();
+ mCaches->disableTexCoordsVertexArray();
+ debugOverdraw(false, false);
+}
+
+void RenderState::resumeFromFunctorInvoke() {
+ glViewport(0, 0, mViewportWidth, mViewportHeight);
+ glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer);
+ debugOverdraw(false, false);
+
+ glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+
+ mCaches->scissorEnabled = glIsEnabled(GL_SCISSOR_TEST);
+ mCaches->enableScissor();
+ mCaches->resetScissor();
+
+ mCaches->activeTexture(0);
+ mCaches->resetBoundTextures();
+
+ mCaches->blend = true;
+ glEnable(GL_BLEND);
+ glBlendFunc(mCaches->lastSrcMode, mCaches->lastDstMode);
+ glBlendEquation(GL_FUNC_ADD);
+}
+
+void RenderState::debugOverdraw(bool enable, bool clear) {
+ if (mCaches->debugOverdraw && mFramebuffer == 0) {
+ if (clear) {
+ mCaches->disableScissor();
+ mCaches->stencil.clear();
+ }
+ if (enable) {
+ mCaches->stencil.enableDebugWrite();
+ } else {
+ mCaches->stencil.disable();
+ }
+ }
+}
+
+} /* namespace uirenderer */
+} /* namespace android */