#include "Standard.hpp"
#include "../ThirdPartyLibrary/glew-1.13.0/include/GL/glew.h"
#include "../ThirdPartyLibrary/glew-1.13.0/include/GL/wglew.h"
#pragma comment(lib, "../ThirdPartyLibrary/glew-1.13.0/lib/Release/Win32/glew32.lib" )
#include "Shader.h"
Shader::Shader() : m_ProgramID(0), m_VertexShader(0), m_FragmentShader(0)
{
const char* vssc = VertexShaderCode .data();
const char* fssc = FragmentShaderCode.data();
m_VertexShader = glCreateShader(GL_VERTEX_SHADER);
glShaderSource(m_VertexShader, 1, &vssc, NULL);
glCompileShader(m_VertexShader);
{
GLint errorInfo; glGetShaderiv(m_VertexShader, GL_COMPILE_STATUS, &errorInfo);
if (errorInfo == 0) { glDeleteShader(m_VertexShader); m_VertexShader = 0; return; }
}
m_FragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(m_FragmentShader, 1, &fssc, NULL);
glCompileShader(m_FragmentShader);
{
GLint errorInfo; glGetShaderiv(m_FragmentShader, GL_COMPILE_STATUS, &errorInfo);
if (errorInfo == 0) { glDeleteShader(m_FragmentShader); m_FragmentShader = 0; return; }
}
m_ProgramID = glCreateProgram();
glAttachShader(m_ProgramID, m_VertexShader);
glAttachShader(m_ProgramID, m_FragmentShader);
glLinkProgram(m_ProgramID);
{
GLint errorInfo; glGetProgramiv(m_ProgramID, GL_LINK_STATUS, &errorInfo);
if (errorInfo == 0) { glDeleteProgram(m_ProgramID); m_ProgramID = 0; return; }
}
m_ProjectionMatrixLocation = glGetUniformLocation(m_ProgramID, "LProjectionMatrix" );
m_ModelViewMatrixLocation = glGetUniformLocation(m_ProgramID, "LModelViewMatrix" );
m_VertexPos3DLocation = glGetAttribLocation (m_ProgramID, "LVertexPos3D" );
m_MultiColorLocation = glGetAttribLocation (m_ProgramID, "LMultiColorLocation");
m_TexCoordLocation = glGetAttribLocation (m_ProgramID, "LTexCoord" );
m_IsModulateModeLocation = glGetUniformLocation(m_ProgramID, "LIsModulateMode" );
m_TextureUnitLocation = glGetUniformLocation(m_ProgramID, "LTextureUnit" );
glDeleteShader(m_VertexShader );
glDeleteShader(m_FragmentShader);
}
const string Shader::VertexShaderCode
(
"uniform mat4 LProjectionMatrix;"
"uniform mat4 LModelViewMatrix;"
"attribute vec3 LVertexPos3D;"
"attribute vec4 LMultiColor;"
"attribute vec2 LTexCoord;"
"varying vec4 multiColor;"
"varying vec2 texCoord;"
"void main() {"
" multiColor = LMultiColor;"
" texCoord = LTexCoord;"
" gl_Position = LProjectionMatrix * LModelViewMatrix * vec4(LVertexPos3D.x, LVertexPos3D.y, LVertexPos3D.z, 1.0);"
"}"
);
const string Shader::FragmentShaderCode
(
"precision highp float;"
"uniform int LIsModulateMode;"
"uniform sampler2D LTextureUnit;"
"varying vec4 multiColor;"
"varying vec2 texCoord;"
"void main() {"
" gl_FragColor = texture2D(LTextureUnit, texCoord);"
"}"
);
