SurfaceFlinger now uses GLES 2.x when available
Bug: 8679321
Change-Id: I2b152d01fb4e2de2ea9fe87f1ddbd6826d7520d7
diff --git a/services/surfaceflinger/RenderEngine/GLES20RenderEngine.cpp b/services/surfaceflinger/RenderEngine/GLES20RenderEngine.cpp
new file mode 100644
index 0000000..6786065
--- /dev/null
+++ b/services/surfaceflinger/RenderEngine/GLES20RenderEngine.cpp
@@ -0,0 +1,213 @@
+/*
+ * Copyright 2013 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.
+ */
+
+#define ATRACE_TAG ATRACE_TAG_GRAPHICS
+
+#include <GLES2/gl2.h>
+
+#include <utils/String8.h>
+#include <utils/Trace.h>
+
+#include <cutils/compiler.h>
+
+#include "GLES20RenderEngine.h"
+#include "GLExtensions.h"
+#include "Program.h"
+#include "ProgramCache.h"
+#include "Description.h"
+#include "Mesh.h"
+
+// ---------------------------------------------------------------------------
+namespace android {
+// ---------------------------------------------------------------------------
+
+GLES20RenderEngine::GLES20RenderEngine() {
+
+ glGetIntegerv(GL_MAX_TEXTURE_SIZE, &mMaxTextureSize);
+ glGetIntegerv(GL_MAX_VIEWPORT_DIMS, mMaxViewportDims);
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
+ glPixelStorei(GL_PACK_ALIGNMENT, 4);
+
+ struct pack565 {
+ inline uint16_t operator() (int r, int g, int b) const {
+ return (r<<11)|(g<<5)|b;
+ }
+ } pack565;
+
+ const uint16_t protTexData[] = { pack565(0x03, 0x03, 0x03) };
+ glGenTextures(1, &mProtectedTexName);
+ glBindTexture(GL_TEXTURE_2D, mProtectedTexName);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 1, 0,
+ GL_RGB, GL_UNSIGNED_SHORT_5_6_5, protTexData);
+}
+
+GLES20RenderEngine::~GLES20RenderEngine() {
+}
+
+
+size_t GLES20RenderEngine::getMaxTextureSize() const {
+ return mMaxTextureSize;
+}
+
+size_t GLES20RenderEngine::getMaxViewportDims() const {
+ return
+ mMaxViewportDims[0] < mMaxViewportDims[1] ?
+ mMaxViewportDims[0] : mMaxViewportDims[1];
+}
+
+void GLES20RenderEngine::setViewportAndProjection(
+ size_t vpw, size_t vph, size_t w, size_t h, bool yswap) {
+
+ struct ortho {
+ inline void operator() (GLfloat *m,
+ GLfloat left, GLfloat right, GLfloat bottom, GLfloat top,
+ GLfloat near, GLfloat far) const {
+ memset(m, 0, 16*sizeof(GLfloat));
+ m[ 0] = 2.0f / (right - left);
+ m[ 5] = 2.0f / (top - bottom);
+ m[10] =-2.0f / (far - near);
+ m[15] = 1.0f;
+ m[12] = -(right + left) / (right - left);
+ m[13] = -(top + bottom) / (top - bottom);
+ m[14] = -(far + near) / (far - near);
+ }
+ } ortho;
+
+ GLfloat m[16];
+ if (yswap) ortho(m, 0, w, h, 0, 0, 1);
+ else ortho(m, 0, w, 0, h, 0, 1);
+
+ glViewport(0, 0, vpw, vph);
+ mState.setProjectionMatrix(m);
+}
+
+void GLES20RenderEngine::setupLayerBlending(
+ bool premultipliedAlpha, bool opaque, int alpha) {
+
+ mState.setPremultipliedAlpha(premultipliedAlpha);
+ mState.setOpaque(opaque);
+ mState.setPlaneAlpha(alpha / 255.0f);
+
+ if (alpha < 0xFF || !opaque) {
+ glEnable(GL_BLEND);
+ glBlendFunc(premultipliedAlpha ? GL_ONE : GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ } else {
+ glDisable(GL_BLEND);
+ }
+}
+
+void GLES20RenderEngine::setupDimLayerBlending(int alpha) {
+ mState.setPlaneAlpha(alpha / 255.0f);
+
+ if (alpha == 0xFF) {
+ glDisable(GL_BLEND);
+ } else {
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
+ }
+ disableTexturing();
+}
+
+void GLES20RenderEngine::setupLayerTexturing(size_t textureName,
+ bool useFiltering, const float* textureMatrix) {
+ glBindTexture(GL_TEXTURE_EXTERNAL_OES, textureName);
+ GLenum filter = GL_NEAREST;
+ if (useFiltering) {
+ filter = GL_LINEAR;
+ }
+ glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MAG_FILTER, filter);
+ glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MIN_FILTER, filter);
+
+ mState.setTextureName(GL_TEXTURE_EXTERNAL_OES, textureName);
+ mState.setTextureMatrix(textureMatrix);
+}
+
+void GLES20RenderEngine::setupLayerBlackedOut() {
+ const GLfloat m[16] = {1,0,0,0, 0,1,0,0, 0,0,1,0, 0,0,0,1 };
+ glBindTexture(GL_TEXTURE_2D, mProtectedTexName);
+ mState.setTextureName(GL_TEXTURE_2D, mProtectedTexName);
+ mState.setTextureMatrix(m);
+}
+
+void GLES20RenderEngine::disableTexturing() {
+ mState.disableTexture();
+}
+
+void GLES20RenderEngine::disableBlending() {
+ glDisable(GL_BLEND);
+}
+
+void GLES20RenderEngine::fillWithColor(const Mesh& mesh, float r, float g, float b, float a) {
+ mState.setColor(r, g, b, a);
+ disableTexturing();
+ glDisable(GL_BLEND);
+
+ ProgramCache::getInstance().useProgram(mState);
+
+ glVertexAttribPointer(Program::position,
+ mesh.getVertexSize(),
+ GL_FLOAT, GL_FALSE,
+ mesh.getByteStride(),
+ mesh.getVertices());
+
+ glDrawArrays(mesh.getPrimitive(), 0, mesh.getVertexCount());
+}
+
+void GLES20RenderEngine::drawMesh(const Mesh& mesh) {
+
+ ProgramCache::getInstance().useProgram(mState);
+
+ if (mesh.getTexCoordsSize()) {
+ glEnableVertexAttribArray(Program::texCoords);
+ glVertexAttribPointer(Program::texCoords,
+ mesh.getTexCoordsSize(),
+ GL_FLOAT, GL_FALSE,
+ mesh.getByteStride(),
+ mesh.getTexCoords());
+ }
+
+ glVertexAttribPointer(Program::position,
+ mesh.getVertexSize(),
+ GL_FLOAT, GL_FALSE,
+ mesh.getByteStride(),
+ mesh.getVertices());
+
+ glDrawArrays(mesh.getPrimitive(), 0, mesh.getVertexCount());
+
+ if (mesh.getTexCoordsSize()) {
+ glDisableVertexAttribArray(Program::texCoords);
+ }
+}
+
+void GLES20RenderEngine::dump(String8& result) {
+ const GLExtensions& extensions(GLExtensions::getInstance());
+ result.appendFormat("GLES: %s, %s, %s\n",
+ extensions.getVendor(),
+ extensions.getRenderer(),
+ extensions.getVersion());
+ result.appendFormat("%s\n", extensions.getExtension());
+}
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+// ---------------------------------------------------------------------------