5b3b35296e
This optimization is currently disabled until Launcher is modified to take advantage of it. The optimization can be enabled by turning on RENDER_LAYERS_AS_REGIONS in the OpenGLRenderer.h file. Change-Id: I2fdf59d0f4dc690a3d7f712173ab8db3848b27b1
139 lines
3.7 KiB
C++
139 lines
3.7 KiB
C++
/*
|
|
* Copyright (C) 2010 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 LOG_TAG "OpenGLRenderer"
|
|
|
|
#include "Program.h"
|
|
|
|
namespace android {
|
|
namespace uirenderer {
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Base program
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
Program::Program(const char* vertex, const char* fragment) {
|
|
vertexShader = buildShader(vertex, GL_VERTEX_SHADER);
|
|
fragmentShader = buildShader(fragment, GL_FRAGMENT_SHADER);
|
|
|
|
id = glCreateProgram();
|
|
glAttachShader(id, vertexShader);
|
|
glAttachShader(id, fragmentShader);
|
|
glLinkProgram(id);
|
|
|
|
GLint status;
|
|
glGetProgramiv(id, GL_LINK_STATUS, &status);
|
|
if (status != GL_TRUE) {
|
|
GLint infoLen = 0;
|
|
glGetProgramiv(id, GL_INFO_LOG_LENGTH, &infoLen);
|
|
if (infoLen > 1) {
|
|
GLchar log[infoLen];
|
|
glGetProgramInfoLog(id, infoLen, 0, &log[0]);
|
|
LOGE("Error while linking shaders: %s", log);
|
|
}
|
|
glDeleteShader(vertexShader);
|
|
glDeleteShader(fragmentShader);
|
|
glDeleteProgram(id);
|
|
}
|
|
|
|
mUse = false;
|
|
|
|
position = addAttrib("position");
|
|
transform = addUniform("transform");
|
|
}
|
|
|
|
Program::~Program() {
|
|
glDeleteShader(vertexShader);
|
|
glDeleteShader(fragmentShader);
|
|
glDeleteProgram(id);
|
|
}
|
|
|
|
int Program::addAttrib(const char* name) {
|
|
int slot = glGetAttribLocation(id, name);
|
|
attributes.add(name, slot);
|
|
return slot;
|
|
}
|
|
|
|
int Program::getAttrib(const char* name) {
|
|
ssize_t index = attributes.indexOfKey(name);
|
|
if (index >= 0) {
|
|
return attributes.valueAt(index);
|
|
}
|
|
return addAttrib(name);
|
|
}
|
|
|
|
int Program::addUniform(const char* name) {
|
|
int slot = glGetUniformLocation(id, name);
|
|
uniforms.add(name, slot);
|
|
return slot;
|
|
}
|
|
|
|
int Program::getUniform(const char* name) {
|
|
ssize_t index = uniforms.indexOfKey(name);
|
|
if (index >= 0) {
|
|
return uniforms.valueAt(index);
|
|
}
|
|
return addUniform(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[0]);
|
|
LOGE("Error while compiling shader: %s", log);
|
|
glDeleteShader(shader);
|
|
}
|
|
|
|
return shader;
|
|
}
|
|
|
|
void Program::set(const mat4& projectionMatrix, const mat4& modelViewMatrix,
|
|
const mat4& transformMatrix) {
|
|
mat4 t(projectionMatrix);
|
|
t.multiply(transformMatrix);
|
|
t.multiply(modelViewMatrix);
|
|
|
|
glUniformMatrix4fv(transform, 1, GL_FALSE, &t.data[0]);
|
|
}
|
|
|
|
void Program::setColor(const float r, const float g, const float b, const float a) {
|
|
glUniform4f(getUniform("color"), r, g, b, a);
|
|
}
|
|
|
|
void Program::use() {
|
|
glUseProgram(id);
|
|
mUse = true;
|
|
|
|
glEnableVertexAttribArray(position);
|
|
}
|
|
|
|
void Program::remove() {
|
|
mUse = false;
|
|
|
|
glDisableVertexAttribArray(position);
|
|
}
|
|
|
|
}; // namespace uirenderer
|
|
}; // namespace android
|