[RenderEngine] Move RenderEngine to libs/renderengine
To do side-by-side comparison between readback buffer from hardware composer
and client target of RenderEngine, we need RenderEngine to be accessible in
VTS, which means RenderEngine should be part of VNDK. This patch moves
RenderEngine out of SurfaceFlinger to libs/renderengine.
BUG: 112585051
Test: build, flash, boot and do some display validation
Change-Id: Ib6b302eaad04c7cc6c5bae39b1d25b38be188d01
diff --git a/libs/renderengine/gl/Program.cpp b/libs/renderengine/gl/Program.cpp
new file mode 100644
index 0000000..7d2ea90
--- /dev/null
+++ b/libs/renderengine/gl/Program.cpp
@@ -0,0 +1,144 @@
+/*Gluint
+ * 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.
+ */
+
+#include "Program.h"
+
+#include <stdint.h>
+
+#include <log/log.h>
+#include <math/mat4.h>
+#include <utils/String8.h>
+#include "ProgramCache.h"
+
+namespace android {
+namespace renderengine {
+namespace gl {
+
+Program::Program(const ProgramCache::Key& /*needs*/, const char* vertex, const char* fragment)
+ : mInitialized(false) {
+ GLuint vertexId = buildShader(vertex, GL_VERTEX_SHADER);
+ GLuint fragmentId = buildShader(fragment, GL_FRAGMENT_SHADER);
+ GLuint programId = glCreateProgram();
+ glAttachShader(programId, vertexId);
+ glAttachShader(programId, fragmentId);
+ glBindAttribLocation(programId, position, "position");
+ glBindAttribLocation(programId, texCoords, "texCoords");
+ glLinkProgram(programId);
+
+ GLint status;
+ glGetProgramiv(programId, GL_LINK_STATUS, &status);
+ if (status != GL_TRUE) {
+ ALOGE("Error while linking shaders:");
+ GLint infoLen = 0;
+ glGetProgramiv(programId, GL_INFO_LOG_LENGTH, &infoLen);
+ if (infoLen > 1) {
+ GLchar log[infoLen];
+ glGetProgramInfoLog(programId, infoLen, 0, &log[0]);
+ ALOGE("%s", log);
+ }
+ glDetachShader(programId, vertexId);
+ glDetachShader(programId, fragmentId);
+ glDeleteShader(vertexId);
+ glDeleteShader(fragmentId);
+ glDeleteProgram(programId);
+ } else {
+ mProgram = programId;
+ mVertexShader = vertexId;
+ mFragmentShader = fragmentId;
+ mInitialized = true;
+ mProjectionMatrixLoc = glGetUniformLocation(programId, "projection");
+ mTextureMatrixLoc = glGetUniformLocation(programId, "texture");
+ mSamplerLoc = glGetUniformLocation(programId, "sampler");
+ mColorLoc = glGetUniformLocation(programId, "color");
+ mDisplayMaxLuminanceLoc = glGetUniformLocation(programId, "displayMaxLuminance");
+ mInputTransformMatrixLoc = glGetUniformLocation(programId, "inputTransformMatrix");
+ mOutputTransformMatrixLoc = glGetUniformLocation(programId, "outputTransformMatrix");
+
+ // set-up the default values for our uniforms
+ glUseProgram(programId);
+ glUniformMatrix4fv(mProjectionMatrixLoc, 1, GL_FALSE, mat4().asArray());
+ glEnableVertexAttribArray(0);
+ }
+}
+
+bool Program::isValid() const {
+ return mInitialized;
+}
+
+void Program::use() {
+ glUseProgram(mProgram);
+}
+
+GLuint Program::getAttrib(const char* name) const {
+ // TODO: maybe use a local cache
+ return glGetAttribLocation(mProgram, name);
+}
+
+GLint Program::getUniform(const char* name) const {
+ // TODO: maybe use a local cache
+ return glGetUniformLocation(mProgram, name);
+}
+
+GLuint Program::buildShader(const char* source, GLenum type) {
+ GLuint shader = glCreateShader(type);
+ glShaderSource(shader, 1, &source, 0);
+ glCompileShader(shader);
+ GLint status;
+ glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
+ if (status != GL_TRUE) {
+ // Some drivers return wrong values for GL_INFO_LOG_LENGTH
+ // use a fixed size instead
+ GLchar log[512];
+ glGetShaderInfoLog(shader, sizeof(log), 0, log);
+ ALOGE("Error while compiling shader: \n%s\n%s", source, log);
+ glDeleteShader(shader);
+ return 0;
+ }
+ return shader;
+}
+
+void Program::setUniforms(const Description& desc) {
+ // TODO: we should have a mechanism here to not always reset uniforms that
+ // didn't change for this program.
+
+ if (mSamplerLoc >= 0) {
+ glUniform1i(mSamplerLoc, 0);
+ glUniformMatrix4fv(mTextureMatrixLoc, 1, GL_FALSE, desc.texture.getMatrix().asArray());
+ }
+ if (mColorLoc >= 0) {
+ const float color[4] = {desc.color.r, desc.color.g, desc.color.b, desc.color.a};
+ glUniform4fv(mColorLoc, 1, color);
+ }
+ if (mInputTransformMatrixLoc >= 0) {
+ mat4 inputTransformMatrix = desc.inputTransformMatrix;
+ glUniformMatrix4fv(mInputTransformMatrixLoc, 1, GL_FALSE, inputTransformMatrix.asArray());
+ }
+ if (mOutputTransformMatrixLoc >= 0) {
+ // The output transform matrix and color matrix can be combined as one matrix
+ // that is applied right before applying OETF.
+ mat4 outputTransformMatrix = desc.colorMatrix * desc.outputTransformMatrix;
+ glUniformMatrix4fv(mOutputTransformMatrixLoc, 1, GL_FALSE, outputTransformMatrix.asArray());
+ }
+ if (mDisplayMaxLuminanceLoc >= 0) {
+ glUniform1f(mDisplayMaxLuminanceLoc, desc.displayMaxLuminance);
+ }
+ // these uniforms are always present
+ glUniformMatrix4fv(mProjectionMatrixLoc, 1, GL_FALSE, desc.projectionMatrix.asArray());
+}
+
+} // namespace gl
+} // namespace renderengine
+} // namespace android