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authorMichal Krol <michal@vmware.com>2009-09-04 13:30:40 +0200
committerMichal Krol <michal@vmware.com>2009-09-07 10:12:05 +0200
commite8afc6558909d9503a83c8cc184a2e2bb008746b (patch)
treed6b2570312fddab2ae96a5180c25f4cdbe51cf46 /src/glsl
parentbb8f38ea6f71179cd4adb0ca33c464716be17dcb (diff)
glsl: Implement predefinded macros.
The values are hardcoded: __LINE__ = 1, __FILE__ = 0 and __VERSION__ = 110.
Diffstat (limited to 'src/glsl')
-rw-r--r--src/glsl/pp/sl_pp_macro.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/src/glsl/pp/sl_pp_macro.c b/src/glsl/pp/sl_pp_macro.c
index a82c30cb167..bacd468964c 100644
--- a/src/glsl/pp/sl_pp_macro.c
+++ b/src/glsl/pp/sl_pp_macro.c
@@ -26,6 +26,7 @@
**************************************************************************/
#include <stdlib.h>
+#include <stdio.h>
#include "sl_pp_macro.h"
#include "sl_pp_process.h"
@@ -94,6 +95,21 @@ skip_whitespace(const struct sl_pp_token_info *input,
}
}
+static int
+_out_number(struct sl_pp_context *context,
+ struct sl_pp_process_state *state,
+ unsigned int number)
+{
+ char buf[32];
+ struct sl_pp_token_info ti;
+
+ sprintf(buf, "%u", number);
+
+ ti.token = SL_PP_NUMBER;
+ ti.data.number = sl_pp_context_add_unique_str(context, buf);
+ return sl_pp_process_out(state, &ti);
+}
+
int
sl_pp_macro_expand(struct sl_pp_context *context,
const struct sl_pp_token_info *input,
@@ -103,6 +119,7 @@ sl_pp_macro_expand(struct sl_pp_context *context,
int mute)
{
int macro_name;
+ const char *macro_str;
struct sl_pp_macro *macro = NULL;
struct sl_pp_macro *actual_arg = NULL;
unsigned int j;
@@ -112,6 +129,30 @@ sl_pp_macro_expand(struct sl_pp_context *context,
}
macro_name = input[*pi].data.identifier;
+ macro_str = sl_pp_context_cstr(context, macro_name);
+
+ /* TODO: Having the following built-ins hardcoded is a bit lame. */
+ if (!strcmp(macro_str, "__LINE__")) {
+ if (!mute && _out_number(context, state, 1)) {
+ return -1;
+ }
+ (*pi)++;
+ return 0;
+ }
+ if (!strcmp(macro_str, "__FILE__")) {
+ if (!mute && _out_number(context, state, 0)) {
+ return -1;
+ }
+ (*pi)++;
+ return 0;
+ }
+ if (!strcmp(macro_str, "__VERSION__")) {
+ if (!mute && _out_number(context, state, 110)) {
+ return -1;
+ }
+ (*pi)++;
+ return 0;
+ }
if (local) {
for (macro = local; macro; macro = macro->next) {