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mesa: added comments, remove unused code

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(cherry picked from commit a66ff046cc)
This commit is contained in:
Brian Paul 2008-12-15 16:49:32 -07:00 • committed by Brian Paul
parent be620a66eb
commit 5b5b05c894
1 changed files with 9 additions and 32 deletions
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41
src/mesa/shader/slang/slang_codegen.c
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@ -2707,7 +2707,15 @@ make_constant_array(slang_assemble_ctx *A,
/**
* Generate IR node for allocating/declaring a variable.
* Generate IR node for allocating/declaring a variable (either a local or
* a global).
* Generally, this involves allocating slang_ir_storage for the variable,
* choosing a register file (temporary, constant, etc). For ordinary
* variables we do not yet allocate storage though. We do that when we
* find the first actual use of the variable to avoid allocating temp regs
* that will never get used.
* At this time, uniforms are always allocated space in this function.
*
* \param initializer Optional initializer expression for the variable.
*/
static slang_ir_node *
@ -4056,40 +4064,9 @@ _slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var,
}
else {
/* non-struct uniform */
#if 01
if (!_slang_gen_var_decl(A, var, var->initializer))
return GL_FALSE;
store = var->store;
#else
GLint uniformLoc;
const GLfloat *initialValues = NULL;
#if 0
/* this code needs some work yet */
if (make_constant_array(A, var, var->initializer)) {
/* OK */
}
else
#endif
if (var->initializer) {
_slang_simplify(var->initializer, &A->space, A->atoms);
if (var->initializer->type == SLANG_OPER_LITERAL_FLOAT ||
var->initializer->type == SLANG_OPER_LITERAL_INT) {
/* simple float/vector initializer */
initialValues = var->initializer->literal;
}
else {
/* complex initializer */
slang_info_log_error(A->log,
"unsupported initializer for uniform '%s'", varName);
return GL_FALSE;
}
}
uniformLoc = _mesa_add_uniform(prog->Parameters, varName,
totalSize, datatype, initialValues);
store = _slang_new_ir_storage_swz(PROGRAM_UNIFORM, uniformLoc,
totalSize, swizzle);
#endif
}
}
else {