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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include "Rendering/GL/myGL.h"
#include "Rendering/Shaders/Shader.h"
namespace Shader {
ARBShaderObject::ARBShaderObject(int shType, const std::string& shSrc): IShaderObject(shType, shSrc) {
if (IS_GL_FUNCTION_AVAILABLE(glGenProgramsARB)) {
glGenProgramsARB(1, &objID);
}
}
void ARBShaderObject::Compile() {
glEnable(type);
if (IS_GL_FUNCTION_AVAILABLE(glBindProgramARB)) {
glBindProgramARB(type, objID);
glProgramStringARB(type, GL_PROGRAM_FORMAT_ASCII_ARB, src.size(), src.c_str());
int errorPos = -1;
int isNative = 0;
glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorPos);
glGetProgramivARB(type, GL_PROGRAM_UNDER_NATIVE_LIMITS_ARB, &isNative);
const char* err = (const char*) glGetString(GL_PROGRAM_ERROR_STRING_ARB);
log = std::string((err != NULL)? err: "[NULL]");
valid = (errorPos == -1 && isNative != 0);
glBindProgramARB(type, 0);
}
glDisable(type);
}
void ARBShaderObject::Release() {
if (IS_GL_FUNCTION_AVAILABLE(glDeleteProgramsARB)) {
glDeleteProgramsARB(1, &objID);
}
}
GLSLShaderObject::GLSLShaderObject(int shType, const std::string& shSrc): IShaderObject(shType, shSrc) {
if (IS_GL_FUNCTION_AVAILABLE(glCreateShader)) {
objID = glCreateShader(type);
}
}
void GLSLShaderObject::Compile() {
char logStr[65536] = {0};
int logStrLen = 0;
const GLchar* srcStr = src.c_str();
if (IS_GL_FUNCTION_AVAILABLE(glShaderSource)) {
glShaderSource(objID, 1, &srcStr, NULL);
glCompileShader(objID);
GLint compiled = 0;
glGetShaderiv(objID, GL_COMPILE_STATUS, &compiled);
glGetShaderInfoLog(objID, 65536, &logStrLen, logStr);
valid = bool(compiled);
log = std::string(logStr);
}
}
void GLSLShaderObject::Release() {
if (IS_GL_FUNCTION_AVAILABLE(glDeleteShader)) {
glDeleteShader(objID);
}
}
void IProgramObject::Release() {
for (SOVecIt it = shaderObjs.begin(); it != shaderObjs.end(); ++it) {
(const_cast<IShaderObject*>(*it))->Release();
delete *it;
}
shaderObjs.clear();
}
ARBProgramObject::ARBProgramObject(): IProgramObject() {
objID = -1; // not used for ARBProgramObject instances
uniformTarget = -1;
}
void ARBProgramObject::Enable() const {
for (SOVecIt it = shaderObjs.begin(); it != shaderObjs.end(); it++) {
glEnable((*it)->GetType());
glBindProgramARB((*it)->GetType(), (*it)->GetObjID());
}
}
void ARBProgramObject::Disable() const {
for (SOVecIt it = shaderObjs.begin(); it != shaderObjs.end(); it++) {
glBindProgramARB((*it)->GetType(), 0);
glDisable((*it)->GetType());
}
}
void ARBProgramObject::Link() {
bool shaderObjectsValid = true;
for (SOVecIt it = shaderObjs.begin(); it != shaderObjs.end(); it++) {
shaderObjectsValid = (shaderObjectsValid && (*it)->IsValid());
}
valid = shaderObjectsValid;
}
void ARBProgramObject::Release() {
IProgramObject::Release();
}
#define glPEP4f glProgramEnvParameter4fARB
#define glPEP4fv glProgramEnvParameter4fvARB
void ARBProgramObject::SetUniform1i(int idx, int v0 ) const { glPEP4f(uniformTarget, idx, float(v0), float( 0), float( 0), float( 0)); }
void ARBProgramObject::SetUniform2i(int idx, int v0, int v1 ) const { glPEP4f(uniformTarget, idx, float(v0), float(v1), float( 0), float( 0)); }
void ARBProgramObject::SetUniform3i(int idx, int v0, int v1, int v2 ) const { glPEP4f(uniformTarget, idx, float(v0), float(v1), float(v2), float( 0)); }
void ARBProgramObject::SetUniform4i(int idx, int v0, int v1, int v2, int v3) const { glPEP4f(uniformTarget, idx, float(v0), float(v1), float(v2), float(v3)); }
void ARBProgramObject::SetUniform1f(int idx, float v0 ) const { glPEP4f(uniformTarget, idx, v0, 0.0f, 0.0f, 0.0f); }
void ARBProgramObject::SetUniform2f(int idx, float v0, float v1 ) const { glPEP4f(uniformTarget, idx, v0, v1, 0.0f, 0.0f); }
void ARBProgramObject::SetUniform3f(int idx, float v0, float v1, float v2 ) const { glPEP4f(uniformTarget, idx, v0, v1, v2, 0.0f); }
void ARBProgramObject::SetUniform4f(int idx, float v0, float v1, float v2, float v3) const { glPEP4f(uniformTarget, idx, v0, v1, v2, v3); }
void ARBProgramObject::SetUniform2iv(int idx, const int* v) const { int vv[4]; vv[0] = v[0]; vv[1] = v[1]; vv[2] = 0; vv[3] = 0; glPEP4fv(uniformTarget, idx, (float*) vv); }
void ARBProgramObject::SetUniform3iv(int idx, const int* v) const { int vv[4]; vv[0] = v[0]; vv[1] = v[1]; vv[2] = v[2]; vv[3] = 0; glPEP4fv(uniformTarget, idx, (float*) vv); }
void ARBProgramObject::SetUniform4iv(int idx, const int* v) const { int vv[4]; vv[0] = v[0]; vv[1] = v[1]; vv[2] = v[2]; vv[3] = v[3]; glPEP4fv(uniformTarget, idx, (float*) vv); }
void ARBProgramObject::SetUniform2fv(int idx, const float* v) const { float vv[4]; vv[0] = v[0]; vv[1] = v[1]; vv[2] = 0.0f; vv[3] = 0.0f; glPEP4fv(uniformTarget, idx, vv); }
void ARBProgramObject::SetUniform3fv(int idx, const float* v) const { float vv[4]; vv[0] = v[0]; vv[1] = v[1]; vv[2] = v[2]; vv[3] = 0.0f; glPEP4fv(uniformTarget, idx, vv); }
void ARBProgramObject::SetUniform4fv(int idx, const float* v) const { float vv[4]; vv[0] = v[0]; vv[1] = v[1]; vv[2] = v[2]; vv[3] = v[3]; glPEP4fv(uniformTarget, idx, vv); }
#undef glPEP4f
#undef glPEP4fv
void ARBProgramObject::AttachShaderObject(const IShaderObject* so) {
if (so != NULL) {
IProgramObject::AttachShaderObject(so);
}
}
GLSLProgramObject::GLSLProgramObject(): IProgramObject() {
if (IS_GL_FUNCTION_AVAILABLE(glCreateProgram)) {
objID = glCreateProgram();
}
}
void GLSLProgramObject::Enable() const { glUseProgram(objID); }
void GLSLProgramObject::Disable() const { glUseProgram(0); }
void GLSLProgramObject::Link() {
char logStr[65536] = {0};
int logStrLen = 0;
GLint linked = 0;
if (IS_GL_FUNCTION_AVAILABLE(glLinkProgram)) {
glLinkProgram(objID);
glGetProgramInfoLog(objID, 65536, &logStrLen, logStr);
glGetProgramiv(objID, GL_LINK_STATUS, &linked);
// append the link-log
log += std::string(logStr);
}
valid = bool(linked);
}
void GLSLProgramObject::Validate() {
char logStr[65536] = {0};
int logStrLen = 0;
GLint validated = 0;
if (IS_GL_FUNCTION_AVAILABLE(glValidateProgram)) {
glValidateProgram(objID);
glGetProgramInfoLog(objID, 65536, &logStrLen, logStr);
glGetProgramiv(objID, GL_VALIDATE_STATUS, &validated);
// append the validation-log
log += std::string(logStr);
}
valid = valid && bool(validated);
}
void GLSLProgramObject::Release() {
IProgramObject::Release();
if (IS_GL_FUNCTION_AVAILABLE(glDeleteProgram)) {
glDeleteProgram(objID);
}
}
void GLSLProgramObject::AttachShaderObject(const IShaderObject* so) {
if (so != NULL) {
IProgramObject::AttachShaderObject(so);
if (so->IsValid()) {
glAttachShader(objID, so->GetObjID());
}
}
}
void GLSLProgramObject::SetUniformLocation(const std::string& name) {
uniformLocs.push_back(glGetUniformLocation(objID, name.c_str()));
}
void GLSLProgramObject::SetUniform1i(int idx, int v0 ) const { glUniform1i(uniformLocs[idx], v0 ); }
void GLSLProgramObject::SetUniform2i(int idx, int v0, int v1 ) const { glUniform2i(uniformLocs[idx], v0, v1 ); }
void GLSLProgramObject::SetUniform3i(int idx, int v0, int v1, int v2 ) const { glUniform3i(uniformLocs[idx], v0, v1, v2 ); }
void GLSLProgramObject::SetUniform4i(int idx, int v0, int v1, int v2, int v3) const { glUniform4i(uniformLocs[idx], v0, v1, v2, v3); }
void GLSLProgramObject::SetUniform1f(int idx, float v0 ) const { glUniform1f(uniformLocs[idx], v0 ); }
void GLSLProgramObject::SetUniform2f(int idx, float v0, float v1 ) const { glUniform2f(uniformLocs[idx], v0, v1 ); }
void GLSLProgramObject::SetUniform3f(int idx, float v0, float v1, float v2 ) const { glUniform3f(uniformLocs[idx], v0, v1, v2 ); }
void GLSLProgramObject::SetUniform4f(int idx, float v0, float v1, float v2, float v3) const { glUniform4f(uniformLocs[idx], v0, v1, v2, v3); }
void GLSLProgramObject::SetUniform2iv(int idx, const int* v) const { glUniform2iv(uniformLocs[idx], 1, v); }
void GLSLProgramObject::SetUniform3iv(int idx, const int* v) const { glUniform3iv(uniformLocs[idx], 1, v); }
void GLSLProgramObject::SetUniform4iv(int idx, const int* v) const { glUniform4iv(uniformLocs[idx], 1, v); }
void GLSLProgramObject::SetUniform2fv(int idx, const float* v) const { glUniform2fv(uniformLocs[idx], 1, v); }
void GLSLProgramObject::SetUniform3fv(int idx, const float* v) const { glUniform3fv(uniformLocs[idx], 1, v); }
void GLSLProgramObject::SetUniform4fv(int idx, const float* v) const { glUniform4fv(uniformLocs[idx], 1, v); }
void GLSLProgramObject::SetUniformMatrix2fv(int idx, bool transp, const float* v) const { glUniformMatrix2fv(uniformLocs.at(idx), 1, transp, v); }
void GLSLProgramObject::SetUniformMatrix3fv(int idx, bool transp, const float* v) const { glUniformMatrix3fv(uniformLocs.at(idx), 1, transp, v); }
void GLSLProgramObject::SetUniformMatrix4fv(int idx, bool transp, const float* v) const { glUniformMatrix4fv(uniformLocs.at(idx), 1, transp, v); }
#define M22(m, v) \
m[0] = float(v[0]); m[1] = float(v[1]); \
m[2] = float(v[2]); m[3] = float(v[3]);
#define M33(m, v) \
m[0] = float(v[0]); m[1] = float(v[1]); m[2] = float(v[2]); \
m[3] = float(v[3]); m[4] = float(v[4]); m[5] = float(v[5]); \
m[6] = float(v[6]); m[7] = float(v[7]); m[8] = float(v[8]);
#define M44(m, v) \
m[ 0] = float(v[ 0]); m[ 1] = float(v[ 1]); m[ 2] = float(v[ 2]); m[ 3] = float(v[ 3]); \
m[ 4] = float(v[ 4]); m[ 5] = float(v[ 5]); m[ 6] = float(v[ 6]); m[ 7] = float(v[ 7]); \
m[ 8] = float(v[ 8]); m[ 9] = float(v[ 9]); m[10] = float(v[10]); m[11] = float(v[11]); \
m[12] = float(v[12]); m[13] = float(v[13]); m[14] = float(v[14]); m[15] = float(v[15]);
void GLSLProgramObject::SetUniformMatrix2dv(int idx, bool transp, const double* v) const { float m[2 * 2]; M22(m, v); SetUniformMatrix2fv(idx, transp, m); }
void GLSLProgramObject::SetUniformMatrix3dv(int idx, bool transp, const double* v) const { float m[3 * 3]; M33(m, v); SetUniformMatrix3fv(idx, transp, m); }
void GLSLProgramObject::SetUniformMatrix4dv(int idx, bool transp, const double* v) const { float m[4 * 4]; M44(m, v); SetUniformMatrix4fv(idx, transp, m); }
#undef M22
#undef M33
#undef M44
}
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