ilikecats/stk-code_catmod
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
stk-code_catmod/src/graphics/glwrap.cpp

1328 lines
53 KiB
C++
Raw Blame History

#include "graphics/glwrap.hpp"
#include <fstream>
#include <string>
#include "config/user_config.hpp"
#include "utils/profiler.hpp"
#include "utils/cpp2011.hpp"
#include "graphics/stkmesh.hpp"
#ifdef _IRR_WINDOWS_API_
#define IRR_OGL_LOAD_EXTENSION(X) wglGetProcAddress(reinterpret_cast<const char*>(X))
PFNGLGENTRANSFORMFEEDBACKSPROC glGenTransformFeedbacks;
PFNGLBINDTRANSFORMFEEDBACKPROC glBindTransformFeedback;
PFNGLDRAWTRANSFORMFEEDBACKPROC glDrawTransformFeedback;
PFNGLBEGINTRANSFORMFEEDBACKPROC glBeginTransformFeedback;
PFNGLENDTRANSFORMFEEDBACKPROC glEndTransformFeedback;
PFNGLTRANSFORMFEEDBACKVARYINGSPROC glTransformFeedbackVaryings;
PFNGLBINDBUFFERBASEPROC glBindBufferBase;
PFNGLGENBUFFERSPROC glGenBuffers;
PFNGLBINDBUFFERPROC glBindBuffer;
PFNGLBUFFERDATAPROC glBufferData;
PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer;
PFNGLCREATESHADERPROC glCreateShader;
PFNGLCOMPILESHADERPROC glCompileShader;
PFNGLSHADERSOURCEPROC glShaderSource;
PFNGLCREATEPROGRAMPROC glCreateProgram;
PFNGLATTACHSHADERPROC glAttachShader;
PFNGLLINKPROGRAMPROC glLinkProgram;
PFNGLUSEPROGRAMPROC glUseProgram;
PFNGLDELETEPROGRAMPROC glDeleteProgram;
PFNGLENABLEVERTEXATTRIBARRAYPROC glEnableVertexAttribArray;
PFNGLDISABLEVERTEXATTRIBARRAYPROC glDisableVertexAttribArray;
PFNGLGETUNIFORMLOCATIONPROC glGetUniformLocation;
PFNGLUNIFORMMATRIX4FVPROC glUniformMatrix4fv;
PFNGLUNIFORM1FPROC glUniform1f;
PFNGLUNIFORM3FPROC glUniform3f;
PFNGLDELETESHADERPROC glDeleteShader;
PFNGLGETSHADERIVPROC glGetShaderiv;
PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog;
PFNGLACTIVETEXTUREPROC glActiveTexture;
PFNGLUNIFORM2FPROC glUniform2f;
PFNGLUNIFORM1IPROC glUniform1i;
PFNGLUNIFORM3IPROC glUniform3i;
PFNGLUNIFORM4IPROC glUniform4i;
PFNGLUNIFORM1FVPROC glUniform1fv;
PFNGLUNIFORM4FVPROC glUniform4fv;
PFNGLGETPROGRAMIVPROC glGetProgramiv;
PFNGLGETPROGRAMINFOLOGPROC glGetProgramInfoLog;
PFNGLGETATTRIBLOCATIONPROC glGetAttribLocation;
PFNGLBINDATTRIBLOCATIONPROC glBindAttribLocation;
PFNGLBLENDEQUATIONPROC glBlendEquation;
PFNGLVERTEXATTRIBDIVISORPROC glVertexAttribDivisor;
PFNGLDRAWARRAYSINSTANCEDPROC glDrawArraysInstanced;
PFNGLDRAWELEMENTSBASEVERTEXPROC glDrawElementsBaseVertex;
PFNGLDRAWELEMENTSINSTANCEDPROC glDrawElementsInstanced;
PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC glDrawElementsInstancedBaseVertex;
PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEPROC glDrawElementsInstancedBaseVertexBaseInstance;
PFNGLMULTIDRAWELEMENTSINDIRECTPROC glMultiDrawElementsIndirect;
PFNGLDELETEBUFFERSPROC glDeleteBuffers;
PFNGLGENVERTEXARRAYSPROC glGenVertexArrays;
PFNGLBINDVERTEXARRAYPROC glBindVertexArray;
PFNGLDELETEVERTEXARRAYSPROC glDeleteVertexArrays;
PFNGLTEXBUFFERPROC glTexBuffer;
PFNGLBUFFERSUBDATAPROC glBufferSubData;
PFNGLMAPBUFFERPROC glMapBuffer;
PFNGLMAPBUFFERRANGEPROC glMapBufferRange;
PFNGLFLUSHMAPPEDBUFFERRANGEPROC glFlushMappedBufferRange;
PFNGLMEMORYBARRIERPROC glMemoryBarrier;
PFNGLBUFFERSTORAGEPROC glBufferStorage;
PFNGLUNMAPBUFFERPROC glUnmapBuffer;
PFNGLFENCESYNCPROC glFenceSync;
PFNGLCLIENTWAITSYNCPROC glClientWaitSync;
PFNGLVERTEXATTRIBIPOINTERPROC glVertexAttribIPointer;
PFNGLDEBUGMESSAGECALLBACKARBPROC glDebugMessageCallbackARB;
PFNGLGENFRAMEBUFFERSPROC glGenFramebuffers;
PFNGLDELETEFRAMEBUFFERSPROC glDeleteFramebuffers;
PFNGLBINDFRAMEBUFFERPROC glBindFramebuffer;
PFNGLFRAMEBUFFERTEXTURE2DPROC glFramebufferTexture2D;
PFNGLFRAMEBUFFERTEXTUREPROC glFramebufferTexture;
PFNGLTEXIMAGE3DPROC glTexImage3D;
PFNGLGENERATEMIPMAPPROC glGenerateMipmap;
PFNGLCHECKFRAMEBUFFERSTATUSPROC glCheckFramebufferStatus;
PFNGLTEXIMAGE2DMULTISAMPLEPROC glTexImage2DMultisample;
PFNGLBLITFRAMEBUFFERPROC glBlitFramebuffer;
PFNGLGETUNIFORMBLOCKINDEXPROC glGetUniformBlockIndex;
PFNGLUNIFORMBLOCKBINDINGPROC glUniformBlockBinding;
PFNGLBLENDCOLORPROC glBlendColor;
PFNGLCOMPRESSEDTEXIMAGE2DPROC glCompressedTexImage2D;
PFNGLGETCOMPRESSEDTEXIMAGEPROC glGetCompressedTexImage;
PFNGLTEXSTORAGE1DPROC glTexStorage1D;
PFNGLTEXSTORAGE2DPROC glTexStorage2D;
PFNGLTEXSTORAGE3DPROC glTexStorage3D;
PFNGLBINDIMAGETEXTUREPROC glBindImageTexture;
PFNGLDISPATCHCOMPUTEPROC glDispatchCompute;
PFNGLGENSAMPLERSPROC glGenSamplers;
PFNGLDELETESAMPLERSPROC glDeleteSamplers;
PFNGLBINDSAMPLERPROC glBindSampler;
PFNGLSAMPLERPARAMETERFPROC glSamplerParameterf;
PFNGLSAMPLERPARAMETERIPROC glSamplerParameteri;
PFNGLGETSTRINGIPROC glGetStringi;
PFNGLGETTEXTURESAMPLERHANDLEARBPROC glGetTextureSamplerHandleARB;
PFNGLMAKETEXTUREHANDLERESIDENTARBPROC glMakeTextureHandleResidentARB;
PFNGLMAKETEXTUREHANDLENONRESIDENTARBPROC glMakeTextureHandleNonResidentARB;
PFNGLUNIFORMHANDLEUI64ARBPROC glUniformHandleui64ARB;
PFNGLISTEXTUREHANDLERESIDENTARBPROC glIsTextureHandleResidentARB;
PFNGLVERTEXATTRIBLPOINTERPROC glVertexAttribLPointer;
#endif
static bool is_gl_init = false;
#ifdef DEBUG
#if !defined(__APPLE__)
#define ARB_DEBUG_OUTPUT
#endif
#endif
#ifdef ARB_DEBUG_OUTPUT
static void
#ifdef WIN32
CALLBACK
#endif
debugCallback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length,
const GLchar* msg, const void *userparam)
{
// ignore minor notifications sent by some drivers (notably the nvidia one)
if (severity == GL_DEBUG_SEVERITY_NOTIFICATION)
return;
switch(source)
{
case GL_DEBUG_SOURCE_API_ARB:
Log::warn("GLWrap", "OpenGL debug callback - API");
break;
case GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB:
Log::warn("GLWrap", "OpenGL debug callback - WINDOW_SYSTEM");
break;
case GL_DEBUG_SOURCE_SHADER_COMPILER_ARB:
Log::warn("GLWrap", "OpenGL debug callback - SHADER_COMPILER");
break;
case GL_DEBUG_SOURCE_THIRD_PARTY_ARB:
Log::warn("GLWrap", "OpenGL debug callback - THIRD_PARTY");
break;
case GL_DEBUG_SOURCE_APPLICATION_ARB:
Log::warn("GLWrap", "OpenGL debug callback - APPLICATION");
break;
case GL_DEBUG_SOURCE_OTHER_ARB:
Log::warn("GLWrap", "OpenGL debug callback - OTHER");
break;
}
switch(type)
{
case GL_DEBUG_TYPE_ERROR_ARB:
Log::warn("GLWrap", " Error type : ERROR");
break;
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB:
Log::warn("GLWrap", " Error type : DEPRECATED_BEHAVIOR");
break;
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB:
Log::warn("GLWrap", " Error type : UNDEFINED_BEHAVIOR");
break;
case GL_DEBUG_TYPE_PORTABILITY_ARB:
Log::warn("GLWrap", " Error type : PORTABILITY");
break;
case GL_DEBUG_TYPE_PERFORMANCE_ARB:
Log::warn("GLWrap", " Error type : PERFORMANCE");
break;
case GL_DEBUG_TYPE_OTHER_ARB:
Log::warn("GLWrap", " Error type : OTHER");
break;
}
switch(severity)
{
case GL_DEBUG_SEVERITY_HIGH_ARB:
Log::warn("GLWrap", " Severity : HIGH");
break;
case GL_DEBUG_SEVERITY_MEDIUM_ARB:
Log::warn("GLWrap", " Severity : MEDIUM");
break;
case GL_DEBUG_SEVERITY_LOW_ARB:
Log::warn("GLWrap", " Severity : LOW");
break;
}
if (msg)
Log::warn("GLWrap", " Message : %s", msg);
}
#endif
void initGL()
{
if (is_gl_init)
return;
is_gl_init = true;
#ifdef _IRR_WINDOWS_API_
glGenTransformFeedbacks = (PFNGLGENTRANSFORMFEEDBACKSPROC)IRR_OGL_LOAD_EXTENSION("glGenTransformFeedbacks");
glBindTransformFeedback = (PFNGLBINDTRANSFORMFEEDBACKPROC)IRR_OGL_LOAD_EXTENSION("glBindTransformFeedback");
glDrawTransformFeedback = (PFNGLDRAWTRANSFORMFEEDBACKPROC)IRR_OGL_LOAD_EXTENSION("glDrawTransformFeedback");
glBeginTransformFeedback = (PFNGLBEGINTRANSFORMFEEDBACKPROC)IRR_OGL_LOAD_EXTENSION("glBeginTransformFeedback");
glEndTransformFeedback = (PFNGLENDTRANSFORMFEEDBACKPROC)IRR_OGL_LOAD_EXTENSION("glEndTransformFeedback");
glBindBufferBase = (PFNGLBINDBUFFERBASEPROC)IRR_OGL_LOAD_EXTENSION("glBindBufferBase");
glGenBuffers = (PFNGLGENBUFFERSPROC)IRR_OGL_LOAD_EXTENSION("glGenBuffers");
glBindBuffer = (PFNGLBINDBUFFERPROC)IRR_OGL_LOAD_EXTENSION("glBindBuffer");
glBufferData = (PFNGLBUFFERDATAPROC)IRR_OGL_LOAD_EXTENSION("glBufferData");
glMapBuffer = (PFNGLMAPBUFFERPROC)IRR_OGL_LOAD_EXTENSION("glMapBuffer");
glMapBufferRange = (PFNGLMAPBUFFERRANGEPROC)IRR_OGL_LOAD_EXTENSION("glMapBufferRange");
glFlushMappedBufferRange = (PFNGLFLUSHMAPPEDBUFFERRANGEPROC)IRR_OGL_LOAD_EXTENSION("glFlushMappedBufferRange");
glMemoryBarrier = (PFNGLMEMORYBARRIERPROC)IRR_OGL_LOAD_EXTENSION("glMemoryBarrier");
glBufferStorage = (PFNGLBUFFERSTORAGEPROC)IRR_OGL_LOAD_EXTENSION("glBufferStorage");
glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)IRR_OGL_LOAD_EXTENSION("glUnmapBuffer");
glFenceSync = (PFNGLFENCESYNCPROC)IRR_OGL_LOAD_EXTENSION("glFenceSync");
glClientWaitSync = (PFNGLCLIENTWAITSYNCPROC)IRR_OGL_LOAD_EXTENSION("glClientWaitSync");
glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)IRR_OGL_LOAD_EXTENSION("glVertexAttribPointer");
glCreateShader = (PFNGLCREATESHADERPROC)IRR_OGL_LOAD_EXTENSION("glCreateShader");
glCompileShader = (PFNGLCOMPILESHADERPROC)IRR_OGL_LOAD_EXTENSION("glCompileShader");
glShaderSource = (PFNGLSHADERSOURCEPROC)IRR_OGL_LOAD_EXTENSION("glShaderSource");
glCreateProgram = (PFNGLCREATEPROGRAMPROC)IRR_OGL_LOAD_EXTENSION("glCreateProgram");
glAttachShader = (PFNGLATTACHSHADERPROC)IRR_OGL_LOAD_EXTENSION("glAttachShader");
glLinkProgram = (PFNGLLINKPROGRAMPROC)IRR_OGL_LOAD_EXTENSION("glLinkProgram");
glUseProgram = (PFNGLUSEPROGRAMPROC)IRR_OGL_LOAD_EXTENSION("glUseProgram");
glDeleteProgram = (PFNGLDELETEPROGRAMPROC)IRR_OGL_LOAD_EXTENSION("glDeleteProgram");
glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)IRR_OGL_LOAD_EXTENSION("glEnableVertexAttribArray");
glGetUniformLocation = (PFNGLGETUNIFORMLOCATIONPROC)IRR_OGL_LOAD_EXTENSION("glGetUniformLocation");
glUniformMatrix4fv = (PFNGLUNIFORMMATRIX4FVPROC)IRR_OGL_LOAD_EXTENSION("glUniformMatrix4fv");
glUniform1f = (PFNGLUNIFORM1FPROC)IRR_OGL_LOAD_EXTENSION("glUniform1f");
glUniform3f = (PFNGLUNIFORM3FPROC)IRR_OGL_LOAD_EXTENSION("glUniform3f");
glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)IRR_OGL_LOAD_EXTENSION("glDisableVertexAttribArray");
glDeleteShader = (PFNGLDELETESHADERPROC)IRR_OGL_LOAD_EXTENSION("glDeleteShader");
glGetShaderiv = (PFNGLGETSHADERIVPROC)IRR_OGL_LOAD_EXTENSION("glGetShaderiv");
glGetShaderInfoLog = (PFNGLGETSHADERINFOLOGPROC)IRR_OGL_LOAD_EXTENSION("glGetShaderInfoLog");
glActiveTexture = (PFNGLACTIVETEXTUREPROC)IRR_OGL_LOAD_EXTENSION("glActiveTexture");
glUniform2f = (PFNGLUNIFORM2FPROC)IRR_OGL_LOAD_EXTENSION("glUniform2f");
glUniform4i = (PFNGLUNIFORM4IPROC)IRR_OGL_LOAD_EXTENSION("glUniform4i");
glUniform3i = (PFNGLUNIFORM3IPROC)IRR_OGL_LOAD_EXTENSION("glUniform3i");
glUniform1i = (PFNGLUNIFORM1IPROC)IRR_OGL_LOAD_EXTENSION("glUniform1i");
glGetProgramiv = (PFNGLGETPROGRAMIVPROC)IRR_OGL_LOAD_EXTENSION("glGetProgramiv");
glGetProgramInfoLog = (PFNGLGETPROGRAMINFOLOGPROC)IRR_OGL_LOAD_EXTENSION("glGetProgramInfoLog");
glTransformFeedbackVaryings = (PFNGLTRANSFORMFEEDBACKVARYINGSPROC)IRR_OGL_LOAD_EXTENSION("glTransformFeedbackVaryings");
glGetAttribLocation = (PFNGLGETATTRIBLOCATIONPROC)IRR_OGL_LOAD_EXTENSION("glGetAttribLocation");
glBindAttribLocation = (PFNGLBINDATTRIBLOCATIONPROC)IRR_OGL_LOAD_EXTENSION("glBindAttribLocation");
glBlendEquation = (PFNGLBLENDEQUATIONPROC)IRR_OGL_LOAD_EXTENSION("glBlendEquation");
glVertexAttribDivisor = (PFNGLVERTEXATTRIBDIVISORPROC)IRR_OGL_LOAD_EXTENSION("glVertexAttribDivisor");
glDrawArraysInstanced = (PFNGLDRAWARRAYSINSTANCEDPROC)IRR_OGL_LOAD_EXTENSION("glDrawArraysInstanced");
glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)IRR_OGL_LOAD_EXTENSION("glDrawElementsBaseVertex");
glDrawElementsInstanced = (PFNGLDRAWELEMENTSINSTANCEDPROC)IRR_OGL_LOAD_EXTENSION("glDrawElementsInstanced");
glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)IRR_OGL_LOAD_EXTENSION("glDrawElementsInstancedBaseVertex");
glDrawElementsInstancedBaseVertexBaseInstance = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEPROC)IRR_OGL_LOAD_EXTENSION("glDrawElementsInstancedBaseVertexBaseInstance");
glMultiDrawElementsIndirect = (PFNGLMULTIDRAWELEMENTSINDIRECTPROC)IRR_OGL_LOAD_EXTENSION("glMultiDrawElementsIndirect");
glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)IRR_OGL_LOAD_EXTENSION("glDeleteBuffers");
glGenVertexArrays = (PFNGLGENVERTEXARRAYSPROC)IRR_OGL_LOAD_EXTENSION("glGenVertexArrays");
glBindVertexArray = (PFNGLBINDVERTEXARRAYPROC)IRR_OGL_LOAD_EXTENSION("glBindVertexArray");
glDeleteVertexArrays = (PFNGLDELETEVERTEXARRAYSPROC)IRR_OGL_LOAD_EXTENSION("glDeleteVertexArrays");
glTexBuffer = (PFNGLTEXBUFFERPROC)IRR_OGL_LOAD_EXTENSION("glTexBuffer");
glUniform1fv = (PFNGLUNIFORM1FVPROC)IRR_OGL_LOAD_EXTENSION("glUniform1fv");
glUniform4fv = (PFNGLUNIFORM4FVPROC)IRR_OGL_LOAD_EXTENSION("glUniform4fv");
glBufferSubData = (PFNGLBUFFERSUBDATAPROC)IRR_OGL_LOAD_EXTENSION("glBufferSubData");
glVertexAttribIPointer = (PFNGLVERTEXATTRIBIPOINTERPROC)IRR_OGL_LOAD_EXTENSION("glVertexAttribIPointer");
glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)IRR_OGL_LOAD_EXTENSION("glGenFramebuffers");
glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)IRR_OGL_LOAD_EXTENSION("glDeleteFramebuffers");
glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)IRR_OGL_LOAD_EXTENSION("glBindFramebuffer");
glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)IRR_OGL_LOAD_EXTENSION("glFramebufferTexture2D");
glFramebufferTexture = (PFNGLFRAMEBUFFERTEXTUREPROC)IRR_OGL_LOAD_EXTENSION("glFramebufferTexture");
glTexImage3D = (PFNGLTEXIMAGE3DPROC)IRR_OGL_LOAD_EXTENSION("glTexImage3D");
glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)IRR_OGL_LOAD_EXTENSION("glGenerateMipmap");
glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)IRR_OGL_LOAD_EXTENSION("glCheckFramebufferStatus");
glTexImage2DMultisample = (PFNGLTEXIMAGE2DMULTISAMPLEPROC)IRR_OGL_LOAD_EXTENSION("glTexImage2DMultisample");
glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)IRR_OGL_LOAD_EXTENSION("glBlitFramebuffer");
glGetUniformBlockIndex = (PFNGLGETUNIFORMBLOCKINDEXPROC)IRR_OGL_LOAD_EXTENSION("glGetUniformBlockIndex");
glUniformBlockBinding = (PFNGLUNIFORMBLOCKBINDINGPROC)IRR_OGL_LOAD_EXTENSION("glUniformBlockBinding");
glBlendColor = (PFNGLBLENDCOLORPROC)IRR_OGL_LOAD_EXTENSION("glBlendColor");
glCompressedTexImage2D = (PFNGLCOMPRESSEDTEXIMAGE2DPROC)IRR_OGL_LOAD_EXTENSION("glCompressedTexImage2D");
glGetCompressedTexImage = (PFNGLGETCOMPRESSEDTEXIMAGEPROC)IRR_OGL_LOAD_EXTENSION("glGetCompressedTexImage");
glTexStorage1D = (PFNGLTEXSTORAGE1DPROC)IRR_OGL_LOAD_EXTENSION("glTexStorage1D");
glTexStorage2D = (PFNGLTEXSTORAGE2DPROC)IRR_OGL_LOAD_EXTENSION("glTexStorage2D");
glTexStorage3D = (PFNGLTEXSTORAGE3DPROC)IRR_OGL_LOAD_EXTENSION("glTexStorage3D");
glBindImageTexture = (PFNGLBINDIMAGETEXTUREPROC)IRR_OGL_LOAD_EXTENSION("glBindImageTexture");
glDispatchCompute = (PFNGLDISPATCHCOMPUTEPROC)IRR_OGL_LOAD_EXTENSION("glDispatchCompute");
glGenSamplers = (PFNGLGENSAMPLERSPROC)IRR_OGL_LOAD_EXTENSION("glGenSamplers");
glDeleteSamplers = (PFNGLDELETESAMPLERSPROC)IRR_OGL_LOAD_EXTENSION("glDeleteSamplers");
glBindSampler = (PFNGLBINDSAMPLERPROC)IRR_OGL_LOAD_EXTENSION("glBindSampler");
glSamplerParameterf = (PFNGLSAMPLERPARAMETERFPROC)IRR_OGL_LOAD_EXTENSION("glSamplerParameterf");
glSamplerParameteri = (PFNGLSAMPLERPARAMETERIPROC)IRR_OGL_LOAD_EXTENSION("glSamplerParameteri");
glGetStringi = (PFNGLGETSTRINGIPROC)IRR_OGL_LOAD_EXTENSION("glGetstringi");
glGetTextureSamplerHandleARB = (PFNGLGETTEXTURESAMPLERHANDLEARBPROC)IRR_OGL_LOAD_EXTENSION("glGetTextureSamplerHandleARB");
glMakeTextureHandleResidentARB = (PFNGLMAKETEXTUREHANDLERESIDENTARBPROC)IRR_OGL_LOAD_EXTENSION("glMakeTextureHandleResidentARB");
glMakeTextureHandleNonResidentARB = (PFNGLMAKETEXTUREHANDLENONRESIDENTARBPROC)IRR_OGL_LOAD_EXTENSION("glMakeTextureHandleNonResidentARB");
glUniformHandleui64ARB = (PFNGLUNIFORMHANDLEUI64ARBPROC)IRR_OGL_LOAD_EXTENSION("glUniformHandleui64ARB");
glIsTextureHandleResidentARB = (PFNGLISTEXTUREHANDLERESIDENTARBPROC)IRR_OGL_LOAD_EXTENSION("glIsTextureHandleResidentARB");
glVertexAttribLPointer = (PFNGLVERTEXATTRIBLPOINTERPROC)IRR_OGL_LOAD_EXTENSION("glVertexAttribLPointer");
#ifdef DEBUG
glDebugMessageCallbackARB = (PFNGLDEBUGMESSAGECALLBACKARBPROC)IRR_OGL_LOAD_EXTENSION("glDebugMessageCallbackARB");
#endif
#endif
#ifdef ARB_DEBUG_OUTPUT
if (glDebugMessageCallbackARB)
glDebugMessageCallbackARB((GLDEBUGPROCARB)debugCallback, NULL);
#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 (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 = 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;
}
GLuint LoadTFBProgram(const char * vertex_file_path, const char **varyings, unsigned varyingscount)
{
GLuint Program = glCreateProgram();
loadAndAttach(Program, GL_VERTEX_SHADER, vertex_file_path);
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 getTextureGLuint(irr::video::ITexture *tex)
{
return static_cast<irr::video::COpenGLTexture*>(tex)->getOpenGLTextureName();
}
GLuint getDepthTexture(irr::video::ITexture *tex)
{
assert(tex->isRenderTarget());
return static_cast<irr::video::COpenGLFBOTexture*>(tex)->DepthBufferTexture;
}
std::set<irr::video::ITexture *> AlreadyTransformedTexture;
void resetTextureTable()
{
AlreadyTransformedTexture.clear();
}
void compressTexture(irr::video::ITexture *tex, bool srgb, bool premul_alpha)
{
if (AlreadyTransformedTexture.find(tex) != AlreadyTransformedTexture.end())
return;
AlreadyTransformedTexture.insert(tex);
glBindTexture(GL_TEXTURE_2D, getTextureGLuint(tex));
std::string cached_file;
if (UserConfigParams::m_texture_compression)
{
// Try to retrieve the compressed texture in cache
std::string tex_name = irr_driver->getTextureName(tex);
if (!tex_name.empty()) {
cached_file = file_manager->getTextureCacheLocation(tex_name) + ".gltz";
if (!file_manager->fileIsNewer(tex_name, cached_file)) {
if (loadCompressedTexture(cached_file))
return;
}
}
}
size_t w = tex->getSize().Width, h = tex->getSize().Height;
unsigned char *data = new unsigned char[w * h * 4];
memcpy(data, tex->lock(), w * h * 4);
tex->unlock();
unsigned internalFormat, Format;
if (tex->hasAlpha())
Format = GL_BGRA;
else
Format = GL_BGR;
if (premul_alpha)
{
for (unsigned i = 0; i < w * h; i++)
{
float alpha = data[4 * i + 3];
if (alpha > 0.)
alpha = pow(alpha / 255.f, 1.f / 2.2f);
data[4 * i ] = (unsigned char)(data[4 * i ] * alpha);
data[4 * i + 1] = (unsigned char)(data[4 * i + 1] * alpha);
data[4 * i + 2] = (unsigned char)(data[4 * i + 2] * alpha);
}
}
if (!UserConfigParams::m_texture_compression)
{
if (srgb)
internalFormat = (tex->hasAlpha()) ? GL_SRGB_ALPHA : GL_SRGB;
else
internalFormat = (tex->hasAlpha()) ? GL_RGBA : GL_RGB;
}
else
{
if (srgb)
internalFormat = (tex->hasAlpha()) ? GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT : GL_COMPRESSED_SRGB_S3TC_DXT1_EXT;
else
internalFormat = (tex->hasAlpha()) ? GL_COMPRESSED_RGBA_S3TC_DXT5_EXT : GL_COMPRESSED_RGB_S3TC_DXT1_EXT;
}
glTexImage2D(GL_TEXTURE_2D, 0, internalFormat, w, h, 0, Format, GL_UNSIGNED_BYTE, (GLvoid *)data);
glGenerateMipmap(GL_TEXTURE_2D);
delete[] data;
if (UserConfigParams::m_texture_compression && !cached_file.empty())
{
// Save the compressed texture in the cache for later use.
saveCompressedTexture(cached_file);
}
}
//-----------------------------------------------------------------------------
/** Try to load a compressed texture from the given file name.
* Data in the specified file need to have a specific format. See the
* saveCompressedTexture() function for a description of the format.
* \return true if the loading succeeded, false otherwise.
* \see saveCompressedTexture
*/
bool loadCompressedTexture(const std::string& compressed_tex)
{
std::ifstream ifs(compressed_tex.c_str(), std::ios::in | std::ios::binary);
if (!ifs.is_open())
return false;
int internal_format;
int w, h;
int size = -1;
ifs.read((char*)&internal_format, sizeof(int));
ifs.read((char*)&w, sizeof(int));
ifs.read((char*)&h, sizeof(int));
ifs.read((char*)&size, sizeof(int));
if (ifs.fail() || size == -1)
return false;
char *data = new char[size];
ifs.read(data, size);
if (!ifs.fail())
{
glCompressedTexImage2D(GL_TEXTURE_2D, 0, internal_format,
w, h, 0, size, (GLvoid*)data);
glGenerateMipmap(GL_TEXTURE_2D);
delete[] data;
ifs.close();
return true;
}
delete[] data;
return false;
}
//-----------------------------------------------------------------------------
/** Try to save the last texture sent to glTexImage2D in a file of the given
* file name. This function should only be used for textures sent to
* glTexImage2D with a compressed internal format as argument.<br>
* \note The following format is used to save the compressed texture:<br>
* <internal-format><width><height><size><data> <br>
* The first four elements are integers and the last one is stored
* on \c size bytes.
* \see loadCompressedTexture
*/
void saveCompressedTexture(const std::string& compressed_tex)
{
int internal_format, width, height, size, compressionSuccessful;
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, (GLint *)&internal_format);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, (GLint *)&width);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, (GLint *)&height);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_COMPRESSED, (GLint *)&compressionSuccessful);
if (!compressionSuccessful)
return;
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_COMPRESSED_IMAGE_SIZE, (GLint *)&size);
char *data = new char[size];
glGetCompressedTexImage(GL_TEXTURE_2D, 0, (GLvoid*)data);
std::ofstream ofs(compressed_tex.c_str(), std::ios::out | std::ios::binary);
if (ofs.is_open())
{
ofs.write((char*)&internal_format, sizeof(int));
ofs.write((char*)&width, sizeof(int));
ofs.write((char*)&height, sizeof(int));
ofs.write((char*)&size, sizeof(int));
ofs.write(data, size);
ofs.close();
}
delete[] data;
}
static unsigned colorcount = 0;
video::ITexture* getUnicolorTexture(video::SColor c)
{
video::SColor tmp[4] = {
c, c, c, c
};
video::IImage *img = irr_driver->getVideoDriver()->createImageFromData(video::ECF_A8R8G8B8, core::dimension2d<u32>(2, 2), tmp);
img->grab();
std::string name("color");
name += colorcount++;
return irr_driver->getVideoDriver()->addTexture(name.c_str(), img);
}
void setTexture(unsigned TextureUnit, GLuint TextureId, GLenum MagFilter, GLenum MinFilter, bool allowAF)
{
glActiveTexture(GL_TEXTURE0 + TextureUnit);
glBindTexture(GL_TEXTURE_2D, TextureId);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, MagFilter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, MinFilter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
int aniso = UserConfigParams::m_anisotropic;
if (aniso == 0) aniso = 1;
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, allowAF ? (float)aniso : 1.0f);
glGetError();
}
VAOManager::VAOManager()
{
vao[0] = vao[1] = vao[2] = 0;
vbo[0] = vbo[1] = vbo[2] = 0;
ibo[0] = ibo[1] = ibo[2] = 0;
vtx_cnt[0] = vtx_cnt[1] = vtx_cnt[2] = 0;
idx_cnt[0] = idx_cnt[1] = idx_cnt[2] = 0;
vtx_mirror[0] = vtx_mirror[1] = vtx_mirror[2] = NULL;
idx_mirror[0] = idx_mirror[1] = idx_mirror[2] = NULL;
instance_count[0] = 0;
glGenBuffers(1, &instance_vbo[0]);
glBindBuffer(GL_ARRAY_BUFFER, instance_vbo[0]);
glBufferData(GL_ARRAY_BUFFER, 10000 * sizeof(float)* 9, 0, GL_STATIC_DRAW);
}
static void cleanVAOMap(std::map<std::pair<video::E_VERTEX_TYPE, InstanceType>, GLuint> Map)
{
std::map<std::pair<video::E_VERTEX_TYPE, InstanceType>, GLuint>::iterator It = Map.begin(), E = Map.end();
for (; It != E; It++)
{
glDeleteVertexArrays(1, &(It->second));
}
}
void VAOManager::cleanInstanceVAOs()
{
cleanVAOMap(InstanceVAO);
cleanVAOMap(ShadowInstanceVAO);
InstanceVAO.clear();
ShadowInstanceVAO.clear();
}
VAOManager::~VAOManager()
{
cleanInstanceVAOs();
for (unsigned i = 0; i < 3; i++)
{
if (vtx_mirror[i])
free(vtx_mirror[i]);
if (idx_mirror[i])
free(idx_mirror[i]);
if (vbo[i])
glDeleteBuffers(1, &vbo[i]);
if (ibo[i])
glDeleteBuffers(1, &ibo[i]);
if (vao[i])
glDeleteVertexArrays(1, &vao[i]);
}
glDeleteBuffers(1, &instance_vbo[0]);
}
void VAOManager::regenerateBuffer(enum VTXTYPE tp)
{
glBindVertexArray(0);
if (vbo[tp])
glDeleteBuffers(1, &vbo[tp]);
glGenBuffers(1, &vbo[tp]);
glBindBuffer(GL_ARRAY_BUFFER, vbo[tp]);
glBufferData(GL_ARRAY_BUFFER, vtx_cnt[tp] * getVertexPitch(tp), vtx_mirror[tp], GL_DYNAMIC_DRAW);
if (ibo[tp])
glDeleteBuffers(1, &ibo[tp]);
glGenBuffers(1, &ibo[tp]);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ibo[tp]);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(u16)* idx_cnt[tp], idx_mirror[tp], GL_DYNAMIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
}
void VAOManager::regenerateVAO(enum VTXTYPE tp)
{
if (vao[tp])
glDeleteVertexArrays(1, &vao[tp]);
glGenVertexArrays(1, &vao[tp]);
glBindVertexArray(vao[tp]);
glBindBuffer(GL_ARRAY_BUFFER, vbo[tp]);
switch (tp)
{
case VTXTYPE_STANDARD:
// Position
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), 0);
// Normal
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)12);
// Color
glEnableVertexAttribArray(2);
glVertexAttribPointer(2, 4, GL_UNSIGNED_BYTE, GL_TRUE, getVertexPitch(tp), (GLvoid*)24);
// Texcoord
glEnableVertexAttribArray(3);
glVertexAttribPointer(3, 2, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)28);
break;
case VTXTYPE_TCOORD:
// Position
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), 0);
// Normal
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)12);
// Color
glEnableVertexAttribArray(2);
glVertexAttribPointer(2, 4, GL_UNSIGNED_BYTE, GL_TRUE, getVertexPitch(tp), (GLvoid*)24);
// Texcoord
glEnableVertexAttribArray(3);
glVertexAttribPointer(3, 2, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)28);
// SecondTexcoord
glEnableVertexAttribArray(4);
glVertexAttribPointer(4, 2, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)36);
break;
case VTXTYPE_TANGENT:
// Position
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), 0);
// Normal
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)12);
// Color
glEnableVertexAttribArray(2);
glVertexAttribPointer(2, 4, GL_UNSIGNED_BYTE, GL_TRUE, getVertexPitch(tp), (GLvoid*)24);
// Texcoord
glEnableVertexAttribArray(3);
glVertexAttribPointer(3, 2, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)28);
// Tangent
glEnableVertexAttribArray(5);
glVertexAttribPointer(5, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)36);
// Bitangent
glEnableVertexAttribArray(6);
glVertexAttribPointer(6, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)48);
break;
}
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ibo[tp]);
glBindVertexArray(0);
}
void VAOManager::regenerateInstancedVAO()
{
cleanInstanceVAOs();
enum video::E_VERTEX_TYPE IrrVT[] = { video::EVT_STANDARD, video::EVT_2TCOORDS, video::EVT_TANGENTS };
for (unsigned i = 0; i < VTXTYPE_COUNT; i++)
{
for (unsigned j = 0; j < InstanceTypeCount; j++)
{
video::E_VERTEX_TYPE tp = IrrVT[i];
if (!vbo[tp] || !ibo[tp])
continue;
GLuint vao = createVAO(vbo[tp], ibo[tp], tp);
glBindBuffer(GL_ARRAY_BUFFER, instance_vbo[j]);
glEnableVertexAttribArray(7);
glVertexAttribPointer(7, 3, GL_FLOAT, GL_FALSE, sizeof(InstanceData), 0);
glVertexAttribDivisor(7, 1);
glEnableVertexAttribArray(8);
glVertexAttribPointer(8, 3, GL_FLOAT, GL_FALSE, sizeof(InstanceData), (GLvoid*)(3 * sizeof(float)));
glVertexAttribDivisor(8, 1);
glEnableVertexAttribArray(9);
glVertexAttribPointer(9, 3, GL_FLOAT, GL_FALSE, sizeof(InstanceData), (GLvoid*)(6 * sizeof(float)));
glVertexAttribDivisor(9, 1);
glEnableVertexAttribArray(10);
glVertexAttribIPointer(10, 2, GL_UNSIGNED_INT, sizeof(InstanceData), (GLvoid*)(9 * sizeof(float)));
glVertexAttribDivisor(10, 1);
glEnableVertexAttribArray(11);
glVertexAttribIPointer(11, 2, GL_UNSIGNED_INT, sizeof(InstanceData), (GLvoid*)(9 * sizeof(float) + 2 * sizeof(unsigned)));
glVertexAttribDivisor(11, 1);
InstanceVAO[std::pair<video::E_VERTEX_TYPE, InstanceType>(tp, (InstanceType) j)] = vao;
GLuint shadow_vao = createVAO(vbo[tp], ibo[tp], tp);
glBindBuffer(GL_ARRAY_BUFFER, instance_vbo[j]);
glEnableVertexAttribArray(7);
glVertexAttribPointer(7, 3, GL_FLOAT, GL_FALSE, sizeof(InstanceData), 0);
glVertexAttribDivisor(7, 1);
glEnableVertexAttribArray(8);
glVertexAttribPointer(8, 3, GL_FLOAT, GL_FALSE, sizeof(InstanceData), (GLvoid*)(3 * sizeof(float)));
glVertexAttribDivisor(8, 1);
glEnableVertexAttribArray(9);
glVertexAttribPointer(9, 3, GL_FLOAT, GL_FALSE, sizeof(InstanceData), (GLvoid*)(6 * sizeof(float)));
glVertexAttribDivisor(9, 1);
glEnableVertexAttribArray(10);
glVertexAttribIPointer(10, 2, GL_UNSIGNED_INT, sizeof(InstanceData), (GLvoid*)(9 * sizeof(float)));
glVertexAttribDivisor(10, 1);
glEnableVertexAttribArray(11);
glVertexAttribIPointer(11, 2, GL_UNSIGNED_INT, sizeof(InstanceData), (GLvoid*)(9 * sizeof(float)+2 * sizeof(unsigned)));
glVertexAttribDivisor(11, 1);
ShadowInstanceVAO[std::pair<video::E_VERTEX_TYPE, InstanceType>(tp, (InstanceType)j)] = shadow_vao;
glBindVertexArray(0);
}
}
}
size_t VAOManager::getVertexPitch(enum VTXTYPE tp) const
{
switch (tp)
{
case VTXTYPE_STANDARD:
return getVertexPitchFromType(video::EVT_STANDARD);
case VTXTYPE_TCOORD:
return getVertexPitchFromType(video::EVT_2TCOORDS);
case VTXTYPE_TANGENT:
return getVertexPitchFromType(video::EVT_TANGENTS);
default:
assert(0 && "Wrong vtxtype");
return -1;
}
}
VAOManager::VTXTYPE VAOManager::getVTXTYPE(video::E_VERTEX_TYPE type)
{
switch (type)
{
default:
assert(0 && "Wrong vtxtype");
case video::EVT_STANDARD:
return VTXTYPE_STANDARD;
case video::EVT_2TCOORDS:
return VTXTYPE_TCOORD;
case video::EVT_TANGENTS:
return VTXTYPE_TANGENT;
}
};
void VAOManager::append(scene::IMeshBuffer *mb, VTXTYPE tp)
{
size_t old_vtx_cnt = vtx_cnt[tp];
vtx_cnt[tp] += mb->getVertexCount();
vtx_mirror[tp] = realloc(vtx_mirror[tp], vtx_cnt[tp] * getVertexPitch(tp));
intptr_t dstptr = (intptr_t)vtx_mirror[tp] + (old_vtx_cnt * getVertexPitch(tp));
memcpy((void *)dstptr, mb->getVertices(), mb->getVertexCount() * getVertexPitch(tp));
mappedBaseVertex[tp][mb] = old_vtx_cnt;
size_t old_idx_cnt = idx_cnt[tp];
idx_cnt[tp] += mb->getIndexCount();
idx_mirror[tp] = realloc(idx_mirror[tp], idx_cnt[tp] * sizeof(u16));
dstptr = (intptr_t)idx_mirror[tp] + (old_idx_cnt * sizeof(u16));
memcpy((void *)dstptr, mb->getIndices(), mb->getIndexCount() * sizeof(u16));
mappedBaseIndex[tp][mb] = old_idx_cnt * sizeof(u16);
}
std::pair<unsigned, unsigned> VAOManager::getBase(scene::IMeshBuffer *mb)
{
VTXTYPE tp = getVTXTYPE(mb->getVertexType());
if (mappedBaseVertex[tp].find(mb) == mappedBaseVertex[tp].end())
{
assert(mappedBaseIndex[tp].find(mb) == mappedBaseIndex[tp].end());
storedCPUBuffer[tp].push_back(mb);
append(mb, tp);
regenerateBuffer(tp);
regenerateVAO(tp);
regenerateInstancedVAO();
}
std::map<scene::IMeshBuffer*, unsigned>::iterator It;
It = mappedBaseVertex[tp].find(mb);
assert(It != mappedBaseVertex[tp].end());
unsigned vtx = It->second;
It = mappedBaseIndex[tp].find(mb);
assert(It != mappedBaseIndex[tp].end());
return std::pair<unsigned, unsigned>(vtx, It->second);
}
size_t VAOManager::appendInstance(enum InstanceType, const std::vector<InstanceData> &instance_data)
{
glBindBuffer(GL_ARRAY_BUFFER, instance_vbo[0]);
glBufferSubData(GL_ARRAY_BUFFER, instance_count[0] * sizeof(InstanceData), instance_data.size() * sizeof(InstanceData), instance_data.data());
size_t result = instance_count[0];
instance_count[0] += instance_data.size();
return result;
}
ScopedGPUTimer::ScopedGPUTimer(GPUTimer &timer)
{
if (!UserConfigParams::m_profiler_enabled) return;
if (profiler.isFrozen()) return;
#ifdef GL_TIME_ELAPSED
irr::video::COpenGLDriver *gl_driver = (irr::video::COpenGLDriver *)irr_driver->getDevice()->getVideoDriver();
if (!timer.initialised)
{
gl_driver->extGlGenQueries(1, &timer.query);
timer.initialised = true;
}
gl_driver->extGlBeginQuery(GL_TIME_ELAPSED, timer.query);
#endif
}
ScopedGPUTimer::~ScopedGPUTimer()
{
if (!UserConfigParams::m_profiler_enabled) return;
if (profiler.isFrozen()) return;
#ifdef GL_TIME_ELAPSED
irr::video::COpenGLDriver *gl_driver = (irr::video::COpenGLDriver *)irr_driver->getDevice()->getVideoDriver();
gl_driver->extGlEndQuery(GL_TIME_ELAPSED);
#endif
}
GPUTimer::GPUTimer() : initialised(false)
{
}
unsigned GPUTimer::elapsedTimeus()
{
if (!initialised)
return 0;
GLuint result;
irr::video::COpenGLDriver *gl_driver = (irr::video::COpenGLDriver *)irr_driver->getDevice()->getVideoDriver();
gl_driver->extGlGetQueryObjectuiv(query, GL_QUERY_RESULT, &result);
return result / 1000;
}
FrameBuffer::FrameBuffer() {}
FrameBuffer::FrameBuffer(const std::vector<GLuint> &RTTs, size_t w, size_t h, bool layered) :
RenderTargets(RTTs), DepthTexture(0), width(w), height(h)
{
glGenFramebuffers(1, &fbo);
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
if (layered)
{
for (unsigned i = 0; i < RTTs.size(); i++)
glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + i, RTTs[i], 0);
}
else
{
for (unsigned i = 0; i < RTTs.size(); i++)
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + i, GL_TEXTURE_2D, RTTs[i], 0);
}
GLenum result = glCheckFramebufferStatus(GL_FRAMEBUFFER);
assert(result == GL_FRAMEBUFFER_COMPLETE_EXT);
}
FrameBuffer::FrameBuffer(const std::vector<GLuint> &RTTs, GLuint DS, size_t w, size_t h, bool layered) :
RenderTargets(RTTs), DepthTexture(DS), width(w), height(h)
{
glGenFramebuffers(1, &fbo);
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
if (layered)
{
for (unsigned i = 0; i < RTTs.size(); i++)
glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + i, RTTs[i], 0);
glFramebufferTexture(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, DS, 0);
}
else
{
for (unsigned i = 0; i < RTTs.size(); i++)
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + i, GL_TEXTURE_2D, RTTs[i], 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D, DS, 0);
}
GLenum result = glCheckFramebufferStatus(GL_FRAMEBUFFER);
assert(result == GL_FRAMEBUFFER_COMPLETE_EXT);
}
FrameBuffer::~FrameBuffer()
{
glDeleteFramebuffers(1, &fbo);
}
void FrameBuffer::Bind()
{
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glViewport(0, 0, width, height);
irr::video::COpenGLDriver *gl_driver = (irr::video::COpenGLDriver*)irr_driver->getDevice()->getVideoDriver();
GLenum bufs[] = { GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2 };
gl_driver->extGlDrawBuffers(RenderTargets.size(), bufs);
}
void FrameBuffer::Blit(const FrameBuffer &Src, FrameBuffer &Dst, GLbitfield mask, GLenum filter)
{
glBindFramebuffer(GL_READ_FRAMEBUFFER, Src.fbo);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, Dst.fbo);
glBlitFramebuffer(0, 0, Src.width, Src.height, 0, 0, Dst.width, Dst.height, mask, filter);
glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
}
void FrameBuffer::BlitToDefault(size_t x0, size_t y0, size_t x1, size_t y1)
{
glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
glBlitFramebuffer(0, 0, width, height, x0, y0, x1, y1, GL_COLOR_BUFFER_BIT, GL_NEAREST);
glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
}
void draw3DLine(const core::vector3df& start,
const core::vector3df& end, irr::video::SColor color)
{
if (!irr_driver->isGLSL()) {
irr_driver->getVideoDriver()->draw3DLine(start, end, color);
return;
}
float vertex[6] = {
start.X, start.Y, start.Z,
end.X, end.Y, end.Z
};
glBindVertexArray(UtilShader::ColoredLine::vao);
glBindBuffer(GL_ARRAY_BUFFER, UtilShader::ColoredLine::vbo);
glBufferSubData(GL_ARRAY_BUFFER, 0, 6 * sizeof(float), vertex);
glUseProgram(UtilShader::ColoredLine::Program);
UtilShader::ColoredLine::setUniforms(color);
glDrawArrays(GL_LINES, 0, 2);
glGetError();
}
static void drawTexColoredQuad(const video::ITexture *texture, const video::SColor *col, float width, float height,
float center_pos_x, float center_pos_y, float tex_center_pos_x, float tex_center_pos_y,
float tex_width, float tex_height)
{
unsigned colors[] = {
col[0].getRed(), col[0].getGreen(), col[0].getBlue(), col[0].getAlpha(),
col[1].getRed(), col[1].getGreen(), col[1].getBlue(), col[1].getAlpha(),
col[2].getRed(), col[2].getGreen(), col[2].getBlue(), col[2].getAlpha(),
col[3].getRed(), col[3].getGreen(), col[3].getBlue(), col[3].getAlpha(),
};
glBindBuffer(GL_ARRAY_BUFFER, UIShader::ColoredTextureRectShader::getInstance()->colorvbo);
glBufferSubData(GL_ARRAY_BUFFER, 0, 16 * sizeof(unsigned), colors);
glUseProgram(UIShader::ColoredTextureRectShader::getInstance()->Program);
glBindVertexArray(UIShader::ColoredTextureRectShader::getInstance()->vao);
UIShader::ColoredTextureRectShader::getInstance()->SetTextureUnits(createVector<GLuint>(static_cast<const irr::video::COpenGLTexture*>(texture)->getOpenGLTextureName()));
UIShader::ColoredTextureRectShader::getInstance()->setUniforms(
core::vector2df(center_pos_x, center_pos_y), core::vector2df(width, height),
core::vector2df(tex_center_pos_x, tex_center_pos_y), core::vector2df(tex_width, tex_height));
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glBindVertexArray(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glGetError();
}
static
void drawTexQuad(GLuint texture, float width, float height,
float center_pos_x, float center_pos_y, float tex_center_pos_x, float tex_center_pos_y,
float tex_width, float tex_height)
{
glUseProgram(UIShader::TextureRectShader::getInstance()->Program);
glBindVertexArray(SharedObject::UIVAO);
UIShader::TextureRectShader::getInstance()->SetTextureUnits(createVector<GLuint>(texture));
UIShader::TextureRectShader::getInstance()->setUniforms(
core::vector2df(center_pos_x, center_pos_y), core::vector2df(width, height),
core::vector2df(tex_center_pos_x, tex_center_pos_y),
core::vector2df(tex_width, tex_height));
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glBindVertexArray(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glGetError();
}
static void
getSize(unsigned texture_width, unsigned texture_height, bool textureisRTT,
const core::rect<s32>& destRect,
const core::rect<s32>& sourceRect,
float &width, float &height,
float &center_pos_x, float &center_pos_y,
float &tex_width, float &tex_height,
float &tex_center_pos_x, float &tex_center_pos_y
)
{
core::dimension2d<u32> frame_size =
irr_driver->getVideoDriver()->getCurrentRenderTargetSize();
const int screen_w = frame_size.Width;
const int screen_h = frame_size.Height;
center_pos_x = float(destRect.UpperLeftCorner.X + destRect.LowerRightCorner.X);
center_pos_x /= screen_w;
center_pos_x -= 1.;
center_pos_y = float(destRect.UpperLeftCorner.Y + destRect.LowerRightCorner.Y);
center_pos_y /= screen_h;
center_pos_y = float(1.f - center_pos_y);
width = float(destRect.LowerRightCorner.X - destRect.UpperLeftCorner.X);
width /= screen_w;
height = float(destRect.LowerRightCorner.Y - destRect.UpperLeftCorner.Y);
height /= screen_h;
tex_center_pos_x = float(sourceRect.UpperLeftCorner.X + sourceRect.LowerRightCorner.X);
tex_center_pos_x /= texture_width * 2.f;
tex_center_pos_y = float(sourceRect.UpperLeftCorner.Y + sourceRect.LowerRightCorner.Y);
tex_center_pos_y /= texture_height * 2.f;
tex_width = float(sourceRect.LowerRightCorner.X - sourceRect.UpperLeftCorner.X);
tex_width /= texture_width * 2.f;
tex_height = float(sourceRect.LowerRightCorner.Y - sourceRect.UpperLeftCorner.Y);
tex_height /= texture_height * 2.f;
if (textureisRTT)
tex_height = -tex_height;
const f32 invW = 1.f / static_cast<f32>(texture_width);
const f32 invH = 1.f / static_cast<f32>(texture_height);
const core::rect<f32> tcoords(
sourceRect.UpperLeftCorner.X * invW,
sourceRect.UpperLeftCorner.Y * invH,
sourceRect.LowerRightCorner.X * invW,
sourceRect.LowerRightCorner.Y *invH);
}
void draw2DImage(const video::ITexture* texture, const core::rect<s32>& destRect,
const core::rect<s32>& sourceRect, const core::rect<s32>* clipRect,
const video::SColor &colors, bool useAlphaChannelOfTexture)
{
if (!irr_driver->isGLSL()) {
video::SColor duplicatedArray[4] = {
colors, colors, colors, colors
};
draw2DImage(texture, destRect, sourceRect, clipRect, duplicatedArray, useAlphaChannelOfTexture);
return;
}
float width, height,
center_pos_x, center_pos_y,
tex_width, tex_height,
tex_center_pos_x, tex_center_pos_y;
getSize(texture->getOriginalSize().Width, texture->getOriginalSize().Height, texture->isRenderTarget(),
destRect, sourceRect, width, height, center_pos_x, center_pos_y,
tex_width, tex_height, tex_center_pos_x, tex_center_pos_y);
if (useAlphaChannelOfTexture)
{
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
else
{
glDisable(GL_BLEND);
}
if (clipRect)
{
if (!clipRect->isValid())
return;
glEnable(GL_SCISSOR_TEST);
const core::dimension2d<u32>& renderTargetSize = irr_driver->getVideoDriver()->getCurrentRenderTargetSize();
glScissor(clipRect->UpperLeftCorner.X, renderTargetSize.Height - clipRect->LowerRightCorner.Y,
clipRect->getWidth(), clipRect->getHeight());
}
glUseProgram(UIShader::UniformColoredTextureRectShader::getInstance()->Program);
glBindVertexArray(SharedObject::UIVAO);
UIShader::UniformColoredTextureRectShader::getInstance()->SetTextureUnits(createVector<GLuint>(static_cast<const irr::video::COpenGLTexture*>(texture)->getOpenGLTextureName()));
UIShader::UniformColoredTextureRectShader::getInstance()->setUniforms(
core::vector2df(center_pos_x, center_pos_y), core::vector2df(width, height), core::vector2df(tex_center_pos_x, tex_center_pos_y), core::vector2df(tex_width, tex_height), colors);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glBindVertexArray(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
if (clipRect)
glDisable(GL_SCISSOR_TEST);
glUseProgram(0);
glGetError();
}
void draw2DImageFromRTT(GLuint texture, size_t texture_w, size_t texture_h,
const core::rect<s32>& destRect,
const core::rect<s32>& sourceRect, const core::rect<s32>* clipRect,
const video::SColor &colors, bool useAlphaChannelOfTexture)
{
if (useAlphaChannelOfTexture)
{
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
float width, height,
center_pos_x, center_pos_y,
tex_width, tex_height,
tex_center_pos_x, tex_center_pos_y;
getSize(texture_w, texture_h, true,
destRect, sourceRect, width, height, center_pos_x, center_pos_y,
tex_width, tex_height, tex_center_pos_x, tex_center_pos_y);
glUseProgram(UIShader::UniformColoredTextureRectShader::getInstance()->Program);
glBindVertexArray(SharedObject::UIVAO);
UIShader::UniformColoredTextureRectShader::getInstance()->SetTextureUnits(createVector<GLuint>(texture));
UIShader::UniformColoredTextureRectShader::getInstance()->setUniforms(
core::vector2df(center_pos_x, center_pos_y), core::vector2df(width, height),
core::vector2df(tex_center_pos_x, tex_center_pos_y), core::vector2df(tex_width, tex_height),
colors);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glBindVertexArray(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
void draw2DImage(const video::ITexture* texture, const core::rect<s32>& destRect,
const core::rect<s32>& sourceRect, const core::rect<s32>* clipRect,
const video::SColor* const colors, bool useAlphaChannelOfTexture)
{
if (!irr_driver->isGLSL())
{
irr_driver->getVideoDriver()->draw2DImage(texture, destRect, sourceRect, clipRect, colors, useAlphaChannelOfTexture);
return;
}
float width, height,
center_pos_x, center_pos_y,
tex_width, tex_height,
tex_center_pos_x, tex_center_pos_y;
getSize(texture->getOriginalSize().Width, texture->getOriginalSize().Height, texture->isRenderTarget(),
destRect, sourceRect, width, height, center_pos_x, center_pos_y,
tex_width, tex_height, tex_center_pos_x, tex_center_pos_y);
if (useAlphaChannelOfTexture)
{
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
else
{
glDisable(GL_BLEND);
}
if (clipRect)
{
if (!clipRect->isValid())
return;
glEnable(GL_SCISSOR_TEST);
const core::dimension2d<u32>& renderTargetSize = irr_driver->getVideoDriver()->getCurrentRenderTargetSize();
glScissor(clipRect->UpperLeftCorner.X, renderTargetSize.Height - clipRect->LowerRightCorner.Y,
clipRect->getWidth(), clipRect->getHeight());
}
if (colors)
drawTexColoredQuad(texture, colors, width, height, center_pos_x, center_pos_y,
tex_center_pos_x, tex_center_pos_y, tex_width, tex_height);
else
drawTexQuad(static_cast<const irr::video::COpenGLTexture*>(texture)->getOpenGLTextureName(), width, height, center_pos_x, center_pos_y,
tex_center_pos_x, tex_center_pos_y, tex_width, tex_height);
if (clipRect)
glDisable(GL_SCISSOR_TEST);
glUseProgram(0);
glGetError();
}
void GL32_draw2DRectangle(video::SColor color, const core::rect<s32>& position,
const core::rect<s32>* clip)
{
if (!irr_driver->isGLSL())
{
irr_driver->getVideoDriver()->draw2DRectangle(color, position, clip);
return;
}
core::dimension2d<u32> frame_size =
irr_driver->getVideoDriver()->getCurrentRenderTargetSize();
const int screen_w = frame_size.Width;
const int screen_h = frame_size.Height;
float center_pos_x = float(position.UpperLeftCorner.X + position.LowerRightCorner.X);
center_pos_x /= screen_w;
center_pos_x -= 1;
float center_pos_y = float(position.UpperLeftCorner.Y + position.LowerRightCorner.Y);
center_pos_y /= screen_h;
center_pos_y = 1 - center_pos_y;
float width = float(position.LowerRightCorner.X - position.UpperLeftCorner.X);
width /= screen_w;
float height = float(position.LowerRightCorner.Y - position.UpperLeftCorner.Y);
height /= screen_h;
if (color.getAlpha() < 255)
{
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
else
{
glDisable(GL_BLEND);
}
if (clip)
{
if (!clip->isValid())
return;
glEnable(GL_SCISSOR_TEST);
const core::dimension2d<u32>& renderTargetSize = irr_driver->getVideoDriver()->getCurrentRenderTargetSize();
glScissor(clip->UpperLeftCorner.X, renderTargetSize.Height - clip->LowerRightCorner.Y,
clip->getWidth(), clip->getHeight());
}
glUseProgram(UIShader::ColoredRectShader::getInstance()->Program);
glBindVertexArray(SharedObject::UIVAO);
UIShader::ColoredRectShader::getInstance()->setUniforms(core::vector2df(center_pos_x, center_pos_y), core::vector2df(width, height), color);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindVertexArray(0);
if (clip)
glDisable(GL_SCISSOR_TEST);
glUseProgram(0);
glGetError();
}
bool hasGLExtension(const char* extension)
{
if (glGetStringi != NULL)
{
GLint numExtensions = 0;
glGetIntegerv(GL_NUM_EXTENSIONS, &numExtensions);
for (GLint i = 0; i < numExtensions; i++)
{
const char* foundExtension =
(const char*) glGetStringi(GL_EXTENSIONS, i);
if (foundExtension && strcmp(foundExtension, extension) == 0)
{
return true;
}
}
}
else
{
const char* extensions = (const char*) glGetString(GL_EXTENSIONS);
if (extensions && strstr(extensions, extension) != NULL)
{
return true;
}
}
return false;
}
Reference in New Issue View Git Blame Copy Permalink