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authorBrian Paul <brian.paul@tungstengraphics.com>2006-11-24 19:01:14 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2006-11-24 19:01:14 +0000
commite49d06e61955208b9cd3e18469034e7447394b95 (patch)
treeadba3a8148477f400f369cef640b67a9fb2c86bf /src
parentd4c4bdfa1e6bf35c84c4a2d5e18a70dbff11b101 (diff)
new slang_variable_scope_grow() function
Diffstat (limited to 'src')
-rw-r--r--src/mesa/shader/slang/slang_compile.c46
-rw-r--r--src/mesa/shader/slang/slang_compile_variable.c21
-rw-r--r--src/mesa/shader/slang/slang_compile_variable.h3
3 files changed, 38 insertions, 32 deletions
diff --git a/src/mesa/shader/slang/slang_compile.c b/src/mesa/shader/slang/slang_compile.c
index 77a293ea45e..93c7fb0cdbf 100644
--- a/src/mesa/shader/slang/slang_compile.c
+++ b/src/mesa/shader/slang/slang_compile.c
@@ -1,6 +1,6 @@
/*
* Mesa 3-D graphics library
- * Version: 6.6
+ * Version: 6.5.2
*
* Copyright (C) 2005-2006 Brian Paul All Rights Reserved.
*
@@ -42,14 +42,16 @@
* may be accepted resulting in undefined behaviour.
*/
-/* slang_var_pool */
+
+/**
+ * Allocate storage for a variable of 'size' bytes from given pool.
+ * Return the allocated address for the variable.
+ */
static GLuint
slang_var_pool_alloc(slang_var_pool * pool, unsigned int size)
{
- GLuint addr;
-
- addr = pool->next_addr;
+ const GLuint addr = pool->next_addr;
pool->next_addr += size;
return addr;
}
@@ -432,22 +434,13 @@ parse_struct_field(slang_parse_ctx * C, slang_output_ctx * O,
return 0;
do {
- slang_variable *var;
-
- st->fields->variables =
- (slang_variable *) slang_alloc_realloc(st->fields->variables,
- st->fields->num_variables *
- sizeof(slang_variable),
- (st->fields->num_variables +
- 1) * sizeof(slang_variable));
- if (st->fields->variables == NULL) {
+ slang_variable *var = slang_variable_scope_grow(st->fields);
+ if (!var) {
slang_info_log_memory(C->L);
return 0;
}
- var = &st->fields->variables[st->fields->num_variables];
if (!slang_variable_construct(var))
return 0;
- st->fields->num_variables++;
if (!parse_struct_field_var(C, &o, var, sp))
return 0;
}
@@ -1222,6 +1215,7 @@ parse_expression(slang_parse_ctx * C, slang_output_ctx * O,
if (!parse_child_operation(C, O, op, 0))
return 0;
C->I++;
+
if (!C->parsing_builtin
&& !slang_function_scope_find_by_name(O->funs, op->a_id, 1)) {
const char *id;
@@ -1479,20 +1473,13 @@ parse_function_prototype(slang_parse_ctx * C, slang_output_ctx * O,
/* parse function parameters */
while (*C->I++ == PARAMETER_NEXT) {
- slang_variable *p;
-
- func->parameters->variables = (slang_variable *)
- slang_alloc_realloc(func->parameters->variables,
- func->parameters->num_variables * sizeof(slang_variable),
- (func->parameters->num_variables + 1) * sizeof(slang_variable));
- if (func->parameters->variables == NULL) {
+ slang_variable *p = slang_variable_scope_grow(func->parameters);
+ if (!p) {
slang_info_log_memory(C->L);
return 0;
}
- p = &func->parameters->variables[func->parameters->num_variables];
if (!slang_variable_construct(p))
return 0;
- func->parameters->num_variables++;
if (!parse_parameter_declaration(C, O, p))
return 0;
}
@@ -1662,18 +1649,13 @@ parse_init_declarator(slang_parse_ctx * C, slang_output_ctx * O,
return 1;
/* make room for the new variable and initialize it */
- O->vars->variables = (slang_variable *)
- slang_alloc_realloc(O->vars->variables,
- O->vars->num_variables * sizeof(slang_variable),
- (O->vars->num_variables + 1) * sizeof(slang_variable));
- if (O->vars->variables == NULL) {
+ var = slang_variable_scope_grow(O->vars);
+ if (!var) {
slang_info_log_memory(C->L);
return 0;
}
- var = &O->vars->variables[O->vars->num_variables];
if (!slang_variable_construct(var))
return 0;
- O->vars->num_variables++;
/* copy the declarator qualifier type, parse the identifier */
var->global = C->global_scope;
diff --git a/src/mesa/shader/slang/slang_compile_variable.c b/src/mesa/shader/slang/slang_compile_variable.c
index 92951b85bbc..a37deddff10 100644
--- a/src/mesa/shader/slang/slang_compile_variable.c
+++ b/src/mesa/shader/slang/slang_compile_variable.c
@@ -181,6 +181,27 @@ slang_variable_scope_copy(slang_variable_scope * x,
return 1;
}
+
+/**
+ * Grow the variable list by one.
+ * \return pointer to space for the new variable.
+ */
+slang_variable *
+slang_variable_scope_grow(slang_variable_scope *scope)
+{
+ const int n = scope->num_variables;
+ scope->variables = (slang_variable *)
+ slang_alloc_realloc(scope->variables,
+ n * sizeof(slang_variable),
+ (n + 1) * sizeof(slang_variable));
+ if (!scope->variables)
+ return NULL;
+ scope->num_variables++;
+ return scope->variables + n;
+}
+
+
+
/* slang_variable */
int
diff --git a/src/mesa/shader/slang/slang_compile_variable.h b/src/mesa/shader/slang/slang_compile_variable.h
index 2f358860f82..b0910e855ea 100644
--- a/src/mesa/shader/slang/slang_compile_variable.h
+++ b/src/mesa/shader/slang/slang_compile_variable.h
@@ -81,6 +81,7 @@ typedef struct slang_variable_
GLuint address2; /**< Storage location */
GLuint size; /**< Variable's size in bytes */
GLboolean global; /**< A global var? */
+ void *aux; /**< Used during code gen */
} slang_variable;
@@ -104,6 +105,8 @@ extern int
slang_variable_scope_copy(slang_variable_scope *,
const slang_variable_scope *);
+slang_variable *
+slang_variable_scope_grow(slang_variable_scope *);
extern int
slang_variable_construct(slang_variable *);