static int setUniform(GLint progHandle, ActiveUniform *u)
{
int error;
GLint location;
dbgPrint(DBGLVL_INFO, "setUniform(%i, %s)\n", progHandle, u->name);
/* handle the special case of a uninitialized sampler uniform */
if (isSamplerType(u->type)) {
GLint numTexUnits, maxTexCoords, maxCombinedTextureImageUnits;
ORIG_GL(glGetIntegerv)(GL_MAX_TEXTURE_COORDS, &maxTexCoords);
ORIG_GL(glGetIntegerv)(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS,
&maxCombinedTextureImageUnits);
numTexUnits = maxTexCoords > maxCombinedTextureImageUnits ?
maxTexCoords : maxCombinedTextureImageUnits;
if (((GLint*)u->value)[0] < 0 || ((GLint*)u->value)[0] >= numTexUnits) {
dbgPrint(DBGLVL_INFO,
"Sampler \"%s\" seems to be uninitialized (%i/%i/%i); ignoring\n",
u->name, ((GLint*)u->value)[0], maxTexCoords,
maxCombinedTextureImageUnits);
return DBG_NO_ERROR;
}
}
location = ORIG_GL(glGetUniformLocation)(progHandle, u->name);
error = glError();
if (error) {
return error;
}
if (location < 0) {
dbgPrint(DBGLVL_INFO, "HMM, A UNIFORM NAMED \"%s\" IS NOT KNOWN TO "
"THE PROGRAM\n", u->name);
return DBG_NO_ERROR;
}
if (isMatrixType(u->type)) {
switch (u->type) {
case GL_FLOAT_MAT2:
ORIG_GL(glUniformMatrix2fv)(location, u->size, 0, u->value);
break;
case GL_FLOAT_MAT2x3:
ORIG_GL(glUniformMatrix2x3fv)(location, u->size, 0, u->value);
break;
case GL_FLOAT_MAT2x4:
ORIG_GL(glUniformMatrix2x4fv)(location, u->size, 0, u->value);
break;
case GL_FLOAT_MAT3:
ORIG_GL(glUniformMatrix3fv)(location, u->size, 0, u->value);
break;
case GL_FLOAT_MAT3x2:
ORIG_GL(glUniformMatrix3x2fv)(location, u->size, 0, u->value);
break;
case GL_FLOAT_MAT3x4:
ORIG_GL(glUniformMatrix3x4fv)(location, u->size, 0, u->value);
break;
case GL_FLOAT_MAT4:
ORIG_GL(glUniformMatrix4fv)(location, u->size, 0, u->value);
break;
case GL_FLOAT_MAT4x2:
ORIG_GL(glUniformMatrix4x2fv)(location, u->size, 0, u->value);
break;
case GL_FLOAT_MAT4x3:
ORIG_GL(glUniformMatrix4x3fv)(location, u->size, 0, u->value);
break;
}
} else if (isIntType(u->type)) {
switch (uniformNumElements(u)) {
case 1:
ORIG_GL(glUniform1iv)(location, u->size, u->value);
break;
case 2:
ORIG_GL(glUniform2iv)(location, u->size, u->value);
break;
case 3:
ORIG_GL(glUniform3iv)(location, u->size, u->value);
break;
case 4:
ORIG_GL(glUniform4iv)(location, u->size, u->value);
break;
}
} else if (isUIntType(u->type)) {
switch (uniformNumElements(u)) {
case 1:
ORIG_GL(glUniform1uivEXT)(location, u->size, u->value);
break;
case 2:
ORIG_GL(glUniform2uivEXT)(location, u->size, u->value);
break;
case 3:
ORIG_GL(glUniform3uivEXT)(location, u->size, u->value);
break;
case 4:
ORIG_GL(glUniform4uivEXT)(location, u->size, u->value);
break;
}
} else { /* float type */
switch (uniformNumElements(u)) {
case 1:
ORIG_GL(glUniform1fv)(location, u->size, u->value);
break;
case 2:
ORIG_GL(glUniform2fv)(location, u->size, u->value);
break;
case 3:
ORIG_GL(glUniform3fv)(location, u->size, u->value);
break;
case 4:
ORIG_GL(glUniform4fv)(location, u->size, u->value);
break;
}
}
error = glError();
if (error) {
return error;
} else {
return DBG_NO_ERROR;
}
}
bool UniformMatrix::isDefault(const string &name, GLenum type) {
return isMatrixType(type) && isDefaultName(name);
}
