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Move shader load code to shader.cpp instead of glwrap.hpp

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This commit is contained in:
Vincent Lejeune 2014-10-18 23:53:16 +02:00
parent 80c7c5e49b
commit e23aba65f4
4 changed files with 210 additions and 207 deletions
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137
src/graphics/glwrap.cpp
View File

@ -119,143 +119,6 @@ void initGL()
#endif
}
static std::string LoadHeader()
{
std::string result;
std::ifstream Stream(file_manager->getAsset("shaders/header.txt").c_str(), std::ios::in);
if (Stream.is_open())
{
std::string Line = "";
while (getline(Stream, Line))
result += "\n" + Line;
Stream.close();
}
return result;
}
// Mostly from shader tutorial
GLuint LoadShader(const char * file, unsigned type)
{
GLuint Id = glCreateShader(type);
char versionString[20];
sprintf(versionString, "#version %d\n", irr_driver->getGLSLVersion());
std::string Code = versionString;
if (irr_driver->hasVSLayerExtension())
Code += "#extension GL_AMD_vertex_shader_layer : enable\n";
if (UserConfigParams::m_azdo)
Code += "#extension GL_ARB_bindless_texture : enable\n";
else
{
Code += "#extension GL_ARB_bindless_texture : disable\n";
Code += "#undef GL_ARB_bindless_texture\n";
}
std::ifstream Stream(file, std::ios::in);
Code += "//" + std::string(file) + "\n";
if (irr_driver->needUBOWorkaround())
Code += "#define UBO_DISABLED\n";
if (irr_driver->hasVSLayerExtension())
Code += "#define VSLayer\n";
if (irr_driver->needsRGBBindlessWorkaround())
Code += "#define SRGBBindlessFix\n";
Code += LoadHeader();
if (Stream.is_open())
{
std::string Line = "";
while (getline(Stream, Line))
Code += "\n" + Line;
Stream.close();
}
GLint Result = GL_FALSE;
int InfoLogLength;
Log::info("GLWrap", "Compiling shader : %s", file);
char const * SourcePointer = Code.c_str();
int length = (int)strlen(SourcePointer);
glShaderSource(Id, 1, &SourcePointer, &length);
glCompileShader(Id);
glGetShaderiv(Id, GL_COMPILE_STATUS, &Result);
if (Result == GL_FALSE)
{
Log::error("GLWrap", "Error in shader %s", file);
glGetShaderiv(Id, GL_INFO_LOG_LENGTH, &InfoLogLength);
if(InfoLogLength<0)
InfoLogLength = 1024;
char *ErrorMessage = new char[InfoLogLength];
ErrorMessage[0]=0;
glGetShaderInfoLog(Id, InfoLogLength, NULL, ErrorMessage);
Log::error("GLWrap", ErrorMessage);
delete[] ErrorMessage;
}
glGetError();
return Id;
}
void setAttribute(AttributeType Tp, GLuint ProgramID)
{
switch (Tp)
{
case OBJECT:
glBindAttribLocation(ProgramID, 0, "Position");
glBindAttribLocation(ProgramID, 1, "Normal");
glBindAttribLocation(ProgramID, 2, "Color");
glBindAttribLocation(ProgramID, 3, "Texcoord");
glBindAttribLocation(ProgramID, 4, "SecondTexcoord");
glBindAttribLocation(ProgramID, 5, "Tangent");
glBindAttribLocation(ProgramID, 6, "Bitangent");
glBindAttribLocation(ProgramID, 7, "Origin");
glBindAttribLocation(ProgramID, 8, "Orientation");
glBindAttribLocation(ProgramID, 9, "Scale");
break;
case PARTICLES_SIM:
glBindAttribLocation(ProgramID, 0, "particle_position");
glBindAttribLocation(ProgramID, 1, "lifetime");
glBindAttribLocation(ProgramID, 2, "particle_velocity");
glBindAttribLocation(ProgramID, 3, "size");
glBindAttribLocation(ProgramID, 4, "particle_position_initial");
glBindAttribLocation(ProgramID, 5, "lifetime_initial");
glBindAttribLocation(ProgramID, 6, "particle_velocity_initial");
glBindAttribLocation(ProgramID, 7, "size_initial");
break;
case PARTICLES_RENDERING:
glBindAttribLocation(ProgramID, 1, "lifetime");
glBindAttribLocation(ProgramID, 2, "size");
glBindAttribLocation(ProgramID, 4, "quadcorner");
glBindAttribLocation(ProgramID, 5, "rotationvec");
glBindAttribLocation(ProgramID, 6, "anglespeed");
break;
}
}
GLuint LoadTFBProgram(const char * vertex_file_path, const char **varyings, unsigned varyingscount)
{
GLuint Program = glCreateProgram();
loadAndAttach(Program, GL_VERTEX_SHADER, vertex_file_path);
if (irr_driver->getGLSLVersion() < 330)
setAttribute(PARTICLES_SIM, Program);
glTransformFeedbackVaryings(Program, varyingscount, varyings, GL_INTERLEAVED_ATTRIBS);
glLinkProgram(Program);
GLint Result = GL_FALSE;
int InfoLogLength;
glGetProgramiv(Program, GL_LINK_STATUS, &Result);
if (Result == GL_FALSE)
{
glGetProgramiv(Program, GL_INFO_LOG_LENGTH, &InfoLogLength);
char *ErrorMessage = new char[InfoLogLength];
glGetProgramInfoLog(Program, InfoLogLength, NULL, ErrorMessage);
Log::error("GLWrap", ErrorMessage);
delete[] ErrorMessage;
}
glGetError();
return Program;
}
ScopedGPUTimer::ScopedGPUTimer(GPUTimer &t) : timer(t)
{
if (!UserConfigParams::m_profiler_enabled) return;

70
src/graphics/glwrap.hpp
View File

@ -15,77 +15,7 @@ namespace HardwareStats
}
void initGL();
GLuint LoadTFBProgram(const char * vertex_file_path, const char **varyings, unsigned varyingscount);
video::ITexture* getUnicolorTexture(const video::SColor &c);
GLuint LoadShader(const char * file, unsigned type);
template<typename ... Types>
void loadAndAttach(GLint ProgramID)
{
return;
}
template<typename ... Types>
void loadAndAttach(GLint ProgramID, GLint ShaderType, const char *filepath, Types ... args)
{
GLint ShaderID = LoadShader(filepath, ShaderType);
glAttachShader(ProgramID, ShaderID);
glDeleteShader(ShaderID);
loadAndAttach(ProgramID, args...);
}
template<typename ...Types>
void printFileList()
{
return;
}
template<typename ...Types>
void printFileList(GLint ShaderType, const char *filepath, Types ... args)
{
Log::error("GLWrapp", filepath);
printFileList(args...);
}
enum AttributeType
{
OBJECT,
PARTICLES_SIM,
PARTICLES_RENDERING,
};
void setAttribute(AttributeType Tp, GLuint ProgramID);
template<typename ... Types>
GLint LoadProgram(AttributeType Tp, Types ... args)
{
GLint ProgramID = glCreateProgram();
loadAndAttach(ProgramID, args...);
if (irr_driver->getGLSLVersion() < 330)
setAttribute(Tp, ProgramID);
glLinkProgram(ProgramID);
GLint Result = GL_FALSE;
int InfoLogLength;
glGetProgramiv(ProgramID, GL_LINK_STATUS, &Result);
if (Result == GL_FALSE) {
Log::error("GLWrapp", "Error when linking these shaders :");
printFileList(args...);
glGetProgramiv(ProgramID, GL_INFO_LOG_LENGTH, &InfoLogLength);
char *ErrorMessage = new char[InfoLogLength];
glGetProgramInfoLog(ProgramID, InfoLogLength, NULL, ErrorMessage);
Log::error("GLWrapp", ErrorMessage);
delete[] ErrorMessage;
}
GLenum glErr = glGetError();
if (glErr != GL_NO_ERROR)
{
Log::warn("IrrDriver", "GLWrap : OpenGL error %i\n", glErr);
}
return ProgramID;
}
class GPUTimer;

139
src/graphics/shaders.cpp
View File

@ -123,6 +123,145 @@ Shaders::Shaders()
loadShaders();
}
// Shader loading related hook
static std::string LoadHeader()
{
std::string result;
std::ifstream Stream(file_manager->getAsset("shaders/header.txt").c_str(), std::ios::in);
if (Stream.is_open())
{
std::string Line = "";
while (getline(Stream, Line))
result += "\n" + Line;
Stream.close();
}
return result;
}
// Mostly from shader tutorial
GLuint LoadShader(const char * file, unsigned type)
{
GLuint Id = glCreateShader(type);
char versionString[20];
sprintf(versionString, "#version %d\n", irr_driver->getGLSLVersion());
std::string Code = versionString;
if (irr_driver->hasVSLayerExtension())
Code += "#extension GL_AMD_vertex_shader_layer : enable\n";
if (UserConfigParams::m_azdo)
Code += "#extension GL_ARB_bindless_texture : enable\n";
else
{
Code += "#extension GL_ARB_bindless_texture : disable\n";
Code += "#undef GL_ARB_bindless_texture\n";
}
std::ifstream Stream(file, std::ios::in);
Code += "//" + std::string(file) + "\n";
if (irr_driver->needUBOWorkaround())
Code += "#define UBO_DISABLED\n";
if (irr_driver->hasVSLayerExtension())
Code += "#define VSLayer\n";
if (irr_driver->needsRGBBindlessWorkaround())
Code += "#define SRGBBindlessFix\n";
Code += LoadHeader();
if (Stream.is_open())
{
std::string Line = "";
while (getline(Stream, Line))
Code += "\n" + Line;
Stream.close();
}
GLint Result = GL_FALSE;
int InfoLogLength;
Log::info("GLWrap", "Compiling shader : %s", file);
char const * SourcePointer = Code.c_str();
int length = (int)strlen(SourcePointer);
glShaderSource(Id, 1, &SourcePointer, &length);
glCompileShader(Id);
glGetShaderiv(Id, GL_COMPILE_STATUS, &Result);
if (Result == GL_FALSE)
{
Log::error("GLWrap", "Error in shader %s", file);
glGetShaderiv(Id, GL_INFO_LOG_LENGTH, &InfoLogLength);
if (InfoLogLength<0)
InfoLogLength = 1024;
char *ErrorMessage = new char[InfoLogLength];
ErrorMessage[0] = 0;
glGetShaderInfoLog(Id, InfoLogLength, NULL, ErrorMessage);
Log::error("GLWrap", ErrorMessage);
delete[] ErrorMessage;
}
glGetError();
return Id;
}
void setAttribute(AttributeType Tp, GLuint ProgramID)
{
switch (Tp)
{
case OBJECT:
glBindAttribLocation(ProgramID, 0, "Position");
glBindAttribLocation(ProgramID, 1, "Normal");
glBindAttribLocation(ProgramID, 2, "Color");
glBindAttribLocation(ProgramID, 3, "Texcoord");
glBindAttribLocation(ProgramID, 4, "SecondTexcoord");
glBindAttribLocation(ProgramID, 5, "Tangent");
glBindAttribLocation(ProgramID, 6, "Bitangent");
glBindAttribLocation(ProgramID, 7, "Origin");
glBindAttribLocation(ProgramID, 8, "Orientation");
glBindAttribLocation(ProgramID, 9, "Scale");
break;
case PARTICLES_SIM:
glBindAttribLocation(ProgramID, 0, "particle_position");
glBindAttribLocation(ProgramID, 1, "lifetime");
glBindAttribLocation(ProgramID, 2, "particle_velocity");
glBindAttribLocation(ProgramID, 3, "size");
glBindAttribLocation(ProgramID, 4, "particle_position_initial");
glBindAttribLocation(ProgramID, 5, "lifetime_initial");
glBindAttribLocation(ProgramID, 6, "particle_velocity_initial");
glBindAttribLocation(ProgramID, 7, "size_initial");
break;
case PARTICLES_RENDERING:
glBindAttribLocation(ProgramID, 1, "lifetime");
glBindAttribLocation(ProgramID, 2, "size");
glBindAttribLocation(ProgramID, 4, "quadcorner");
glBindAttribLocation(ProgramID, 5, "rotationvec");
glBindAttribLocation(ProgramID, 6, "anglespeed");
break;
}
}
GLuint LoadTFBProgram(const char * vertex_file_path, const char **varyings, unsigned varyingscount)
{
GLuint Program = glCreateProgram();
loadAndAttach(Program, GL_VERTEX_SHADER, vertex_file_path);
if (irr_driver->getGLSLVersion() < 330)
setAttribute(PARTICLES_SIM, Program);
glTransformFeedbackVaryings(Program, varyingscount, varyings, GL_INTERLEAVED_ATTRIBS);
glLinkProgram(Program);
GLint Result = GL_FALSE;
int InfoLogLength;
glGetProgramiv(Program, GL_LINK_STATUS, &Result);
if (Result == GL_FALSE)
{
glGetProgramiv(Program, GL_INFO_LOG_LENGTH, &InfoLogLength);
char *ErrorMessage = new char[InfoLogLength];
glGetProgramInfoLog(Program, InfoLogLength, NULL, ErrorMessage);
Log::error("GLWrap", ErrorMessage);
delete[] ErrorMessage;
}
glGetError();
return Program;
}
GLuint quad_vbo, tri_vbo;
GLuint SharedObject::FullScreenQuadVAO = 0;

71
src/graphics/shaders_util.hpp
View File

@ -12,6 +12,77 @@ bool needsUBO();
unsigned getGLSLVersion();
GLuint LoadShader(const char * file, unsigned type);
GLuint LoadTFBProgram(const char * vertex_file_path, const char **varyings, unsigned varyingscount);
template<typename ... Types>
void loadAndAttach(GLint ProgramID)
{
return;
}
template<typename ... Types>
void loadAndAttach(GLint ProgramID, GLint ShaderType, const char *filepath, Types ... args)
{
GLint ShaderID = LoadShader(filepath, ShaderType);
glAttachShader(ProgramID, ShaderID);
glDeleteShader(ShaderID);
loadAndAttach(ProgramID, args...);
}
template<typename ...Types>
void printFileList()
{
return;
}
template<typename ...Types>
void printFileList(GLint ShaderType, const char *filepath, Types ... args)
{
Log::error("GLWrapp", filepath);
printFileList(args...);
}
enum AttributeType
{
OBJECT,
PARTICLES_SIM,
PARTICLES_RENDERING,
};
void setAttribute(AttributeType Tp, GLuint ProgramID);
template<typename ... Types>
GLint LoadProgram(AttributeType Tp, Types ... args)
{
GLint ProgramID = glCreateProgram();
loadAndAttach(ProgramID, args...);
if (irr_driver->getGLSLVersion() < 330)
setAttribute(Tp, ProgramID);
glLinkProgram(ProgramID);
GLint Result = GL_FALSE;
int InfoLogLength;
glGetProgramiv(ProgramID, GL_LINK_STATUS, &Result);
if (Result == GL_FALSE) {
Log::error("GLWrapp", "Error when linking these shaders :");
printFileList(args...);
glGetProgramiv(ProgramID, GL_INFO_LOG_LENGTH, &InfoLogLength);
char *ErrorMessage = new char[InfoLogLength];
glGetProgramInfoLog(ProgramID, InfoLogLength, NULL, ErrorMessage);
Log::error("GLWrapp", ErrorMessage);
delete[] ErrorMessage;
}
GLenum glErr = glGetError();
if (glErr != GL_NO_ERROR)
{
Log::warn("IrrDriver", "GLWrap : OpenGL error %i\n", glErr);
}
return ProgramID;
}
struct UniformHelper
{
template<unsigned N = 0>