77 lines
No EOL
1.7 KiB
C++
77 lines
No EOL
1.7 KiB
C++
#include "ltpch.h"
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#include "glShader.h"
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#include <glad/glad.h>
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namespace Light {
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glShader::glShader(const std::string& vertexSource, const std::string& fragmentSource)
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{
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m_ShaderID = glCreateProgram();
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unsigned int vertexShader = glCreateShader(GL_VERTEX_SHADER);
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unsigned int pixelShader = glCreateShader(GL_FRAGMENT_SHADER);
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// & (address of) needs an lvalue
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const char* lVertexSource = vertexSource.c_str();
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const char* lFragmentSource = fragmentSource.c_str();
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glShaderSource(vertexShader, 1, &lVertexSource, NULL);
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glShaderSource(pixelShader, 1, &lFragmentSource, NULL);
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glCompileShader(vertexShader);
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glCompileShader(pixelShader);
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// TEMP
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int isCompiled = 0;
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glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &isCompiled);
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if (isCompiled == GL_FALSE)
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{
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GLint maxLength = 0;
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glGetShaderiv(vertexShader, GL_INFO_LOG_LENGTH, &maxLength);
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std::vector<char> errorLog(maxLength);
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glGetShaderInfoLog(vertexShader, maxLength, &maxLength, &errorLog[0]);
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glDeleteShader(vertexShader);
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}
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glGetShaderiv(pixelShader, GL_COMPILE_STATUS, &isCompiled);
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if (isCompiled == GL_FALSE)
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{
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GLint maxLength = 0;
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glGetShaderiv(pixelShader, GL_INFO_LOG_LENGTH, &maxLength);
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std::vector<char> errorLog(maxLength);
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glGetShaderInfoLog(pixelShader, maxLength, &maxLength, &errorLog[0]);
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glDeleteShader(pixelShader);
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}
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// TEMP
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glAttachShader(m_ShaderID, vertexShader);
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glAttachShader(m_ShaderID, pixelShader);
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glLinkProgram(m_ShaderID);
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glDeleteShader(vertexShader);
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glDeleteShader(pixelShader);
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// TODO: validate program
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}
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glShader::~glShader()
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{
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glDeleteProgram(m_ShaderID);
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}
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void glShader::Bind()
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{
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glUseProgram(m_ShaderID);
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}
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void glShader::UnBind()
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{
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glUseProgram(NULL);
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}
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} |