| 1 | #include <GL/gl3w.h> |
| 2 |
|
| 3 | #include "ZydecoCommon.hpp" |
| 4 | #include "GLProgram.hpp" |
| 5 | #include "GLShader.hpp" |
| 6 |
|
| 7 |
|
| 8 | static Logger LOGGER("GLProgram"); |
| 9 |
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| 10 |
|
| 11 | // static initialize members |
| 12 | std::map<std::string, GLProgram*> GLProgram::s_glPrograms {}; |
| 13 |
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| 14 |
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| 15 | GLProgram *GLProgram::GetGLProgram(std::string name) |
| 16 | { |
| 17 | if (!s_glPrograms.count(name)) { ZydecoFault("GetGLProgram(): Program '{}' does not exist", name); } |
| 18 | return s_glPrograms.at(name); |
| 19 | } |
| 20 |
|
| 21 | GLProgram::GLProgram(std::string name): |
| 22 | m_glProgramId(-1), |
| 23 | m_glProgramName(name) |
| 24 | { |
| 25 | LOGGER.Log(Logger::TRACE, "GLProgram(name: {})", name); |
| 26 |
|
| 27 | s_glPrograms.emplace(std::pair<std::string, GLProgram*>(m_glProgramName, this)); |
| 28 | } |
| 29 |
|
| 30 | GLProgram::~GLProgram() |
| 31 | { |
| 32 | LOGGER.Log(Logger::TRACE, "~GLProgram() for '{}'", m_glProgramName); |
| 33 | if (m_glProgramId != -1) { glDeleteProgram(m_glProgramId); } |
| 34 | s_glPrograms.erase(m_glProgramName); |
| 35 | } |
| 36 |
|
| 37 | void GLProgram::Generate(std::vector<GLShader*> shaders) |
| 38 | { |
| 39 | uint64_t pid = glCreateProgram(); |
| 40 |
|
| 41 | for (GLShader *p_shader : shaders) |
| 42 | { |
| 43 | glAttachShader(pid, p_shader->GetGLShaderID()); |
| 44 | } |
| 45 |
|
| 46 | glLinkProgram(pid); |
| 47 |
|
| 48 | for (GLShader *p_shader : shaders) |
| 49 | { |
| 50 | glDetachShader(pid, p_shader->GetGLShaderID()); |
| 51 | } |
| 52 |
|
| 53 | int success; |
| 54 | char infoLog[512]; |
| 55 | glGetProgramiv(pid, GL_LINK_STATUS, &success); |
| 56 | if(!success) |
| 57 | { |
| 58 | glGetProgramInfoLog(pid, 512, NULL, infoLog); |
| 59 | ZydecoFault("Shader program linking failed:\n{}", infoLog); |
| 60 | return; |
| 61 | } |
| 62 | else |
| 63 | { |
| 64 | if (m_glProgramId != -1) { glDeleteProgram(m_glProgramId); } |
| 65 | m_glProgramId = pid; |
| 66 | } |
| 67 | } |
| 68 |
|
| 69 | uint64_t GLProgram::GetGLProgramID() |
| 70 | { |
| 71 | return m_glProgramId; |
| 72 | } |
| 73 |
|
| 74 | std::string GLProgram::GetGLProgramName() |
| 75 | { |
| 76 | return m_glProgramName; |
| 77 | } |
| 78 |
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Index