Program.cpp revision 13fdc49516d17f41e64e62e73c313b0928bf13cc
13f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian/*Gluint 23f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian * Copyright 2013 The Android Open Source Project 33f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian * 43f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian * Licensed under the Apache License, Version 2.0 (the "License"); 53f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian * you may not use this file except in compliance with the License. 63f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian * You may obtain a copy of the License at 73f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian * 83f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian * http://www.apache.org/licenses/LICENSE-2.0 93f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian * 103f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian * Unless required by applicable law or agreed to in writing, software 113f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian * distributed under the License is distributed on an "AS IS" BASIS, 123f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 133f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian * See the License for the specific language governing permissions and 143f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian * limitations under the License. 153f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian */ 163f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 173f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian#include <stdint.h> 183f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 197823e124e00576e20e47ec717cbe8bc89f0f2bf2Mark Salyzyn#include <log/log.h> 20a5e161b1207ef447a51e99856097d69d4a6111e1Mark Salyzyn#include <utils/String8.h> 213f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 223f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian#include "Program.h" 233f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian#include "ProgramCache.h" 243f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian#include "Description.h" 2513fdc49516d17f41e64e62e73c313b0928bf13ccchaviw#include <math/mat4.h> 263f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 273f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopiannamespace android { 283f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 2992dc3fc52cf097bd105460cf377779bdcf146d62Mark SalyzynProgram::Program(const ProgramCache::Key& /*needs*/, const char* vertex, const char* fragment) 303f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian : mInitialized(false) { 313f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian GLuint vertexId = buildShader(vertex, GL_VERTEX_SHADER); 323f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian GLuint fragmentId = buildShader(fragment, GL_FRAGMENT_SHADER); 333f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian GLuint programId = glCreateProgram(); 343f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glAttachShader(programId, vertexId); 353f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glAttachShader(programId, fragmentId); 363f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glBindAttribLocation(programId, position, "position"); 373f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glBindAttribLocation(programId, texCoords, "texCoords"); 383f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glLinkProgram(programId); 393f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 403f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian GLint status; 413f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glGetProgramiv(programId, GL_LINK_STATUS, &status); 423f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian if (status != GL_TRUE) { 433f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian ALOGE("Error while linking shaders:"); 443f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian GLint infoLen = 0; 453f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glGetProgramiv(programId, GL_INFO_LOG_LENGTH, &infoLen); 463f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian if (infoLen > 1) { 473f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian GLchar log[infoLen]; 483f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glGetProgramInfoLog(programId, infoLen, 0, &log[0]); 493f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian ALOGE("%s", log); 503f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian } 513f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glDetachShader(programId, vertexId); 523f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glDetachShader(programId, fragmentId); 533f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glDeleteShader(vertexId); 543f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glDeleteShader(fragmentId); 553f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glDeleteProgram(programId); 563f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian } else { 573f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian mProgram = programId; 583f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian mVertexShader = vertexId; 593f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian mFragmentShader = fragmentId; 603f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian mInitialized = true; 613f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 62ff2ed70fa30f04b90dd1a2c06ec2319e157152d7Mathias Agopian mColorMatrixLoc = glGetUniformLocation(programId, "colorMatrix"); 633f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian mProjectionMatrixLoc = glGetUniformLocation(programId, "projection"); 643f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian mTextureMatrixLoc = glGetUniformLocation(programId, "texture"); 653f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian mSamplerLoc = glGetUniformLocation(programId, "sampler"); 663f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian mColorLoc = glGetUniformLocation(programId, "color"); 673f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 683f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian // set-up the default values for our uniforms 693f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glUseProgram(programId); 703f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian const GLfloat m[16] = {1,0,0,0, 0,1,0,0, 0,0,1,0, 0,0,0,1 }; 713f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glUniformMatrix4fv(mProjectionMatrixLoc, 1, GL_FALSE, m); 723f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glEnableVertexAttribArray(0); 733f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian } 743f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian} 753f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 763f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias AgopianProgram::~Program() { 773f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian} 783f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 793f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopianbool Program::isValid() const { 803f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian return mInitialized; 813f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian} 823f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 833f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopianvoid Program::use() { 843f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glUseProgram(mProgram); 853f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian} 863f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 873f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias AgopianGLuint Program::getAttrib(const char* name) const { 883f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian // TODO: maybe use a local cache 893f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian return glGetAttribLocation(mProgram, name); 903f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian} 913f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 923f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias AgopianGLint Program::getUniform(const char* name) const { 933f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian // TODO: maybe use a local cache 943f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian return glGetUniformLocation(mProgram, name); 953f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian} 963f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 973f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias AgopianGLuint Program::buildShader(const char* source, GLenum type) { 983f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian GLuint shader = glCreateShader(type); 993f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glShaderSource(shader, 1, &source, 0); 1003f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glCompileShader(shader); 1013f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian GLint status; 1023f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glGetShaderiv(shader, GL_COMPILE_STATUS, &status); 1033f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian if (status != GL_TRUE) { 1043f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian // Some drivers return wrong values for GL_INFO_LOG_LENGTH 1053f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian // use a fixed size instead 1063f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian GLchar log[512]; 1073f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glGetShaderInfoLog(shader, sizeof(log), 0, log); 1083f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian ALOGE("Error while compiling shader: \n%s\n%s", source, log); 1093f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glDeleteShader(shader); 1103f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian return 0; 1113f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian } 1123f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian return shader; 1133f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian} 1143f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 11592dc3fc52cf097bd105460cf377779bdcf146d62Mark SalyzynString8& Program::dumpShader(String8& result, GLenum /*type*/) { 1163f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian GLuint shader = GL_FRAGMENT_SHADER ? mFragmentShader : mVertexShader; 1173f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian GLint l; 1183f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glGetShaderiv(shader, GL_SHADER_SOURCE_LENGTH, &l); 1193f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian char* src = new char[l]; 1203f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glGetShaderSource(shader, l, NULL, src); 1213f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian result.append(src); 1223f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian delete [] src; 1233f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian return result; 1243f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian} 1253f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 1263f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopianvoid Program::setUniforms(const Description& desc) { 1273f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 1283f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian // TODO: we should have a mechanism here to not always reset uniforms that 1293f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian // didn't change for this program. 1303f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 1313f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian if (mSamplerLoc >= 0) { 1323f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian glUniform1i(mSamplerLoc, 0); 133a8c386f1c36e916c1df18d41a22104d655a89817Mathias Agopian glUniformMatrix4fv(mTextureMatrixLoc, 1, GL_FALSE, desc.mTexture.getMatrix().asArray()); 1343f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian } 1353f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian if (mColorLoc >= 0) { 13613fdc49516d17f41e64e62e73c313b0928bf13ccchaviw const float* color = &static_cast<details::TVec4<float> const &>(desc.mColor)[0]; 13713fdc49516d17f41e64e62e73c313b0928bf13ccchaviw glUniform4fv(mColorLoc, 1, color); 1383f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian } 139ff2ed70fa30f04b90dd1a2c06ec2319e157152d7Mathias Agopian if (mColorMatrixLoc >= 0) { 140ff2ed70fa30f04b90dd1a2c06ec2319e157152d7Mathias Agopian glUniformMatrix4fv(mColorMatrixLoc, 1, GL_FALSE, desc.mColorMatrix.asArray()); 141ff2ed70fa30f04b90dd1a2c06ec2319e157152d7Mathias Agopian } 1423f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian // these uniforms are always present 143a8c386f1c36e916c1df18d41a22104d655a89817Mathias Agopian glUniformMatrix4fv(mProjectionMatrixLoc, 1, GL_FALSE, desc.mProjectionMatrix.asArray()); 1443f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian} 1453f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian 1463f84483382be2d528918cc1a6fbc6a7d68e0b181Mathias Agopian} /* namespace android */ 147