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authorBrian Paul <brianp@vmware.com>2010-02-16 10:42:05 -0700
committerBrian Paul <brianp@vmware.com>2010-02-16 10:43:36 -0700
commitde5928a61549a6ca66e6b9ff6e50b305f653888c (patch)
tree7eec9b42a9420533b632cd2f39dc5fdafbcb0011 /src/glsl
parentf7aea808a4724a9e50bf3afa5a1bf547d0da5d65 (diff)
sl/pp: re-do extension testing code
The #extension directive should not effect which extension preprocessor symbols are defined/undefined; only whether/how the compiler accepts language features defined by the extension.
Diffstat (limited to 'src/glsl')
-rw-r--r--src/glsl/pp/sl_pp_context.h9
-rw-r--r--src/glsl/pp/sl_pp_extension.c28
-rw-r--r--src/glsl/pp/sl_pp_if.c2
-rw-r--r--src/glsl/pp/sl_pp_public.h4
4 files changed, 36 insertions, 7 deletions
diff --git a/src/glsl/pp/sl_pp_context.h b/src/glsl/pp/sl_pp_context.h
index b5419bc056b..1232f1e9e31 100644
--- a/src/glsl/pp/sl_pp_context.h
+++ b/src/glsl/pp/sl_pp_context.h
@@ -43,9 +43,16 @@
#define SL_PP_MAX_PREDEFINED 16
+enum sl_pp_extension_state {
+ SL_PP_EXTENSION_STATE_ENABLED,
+ SL_PP_EXTENSION_STATE_DISABLED,
+ SL_PP_EXTENSION_STATE_WARN,
+ SL_PP_EXTENSION_STATE_REQUIRE
+};
+
struct sl_pp_extension {
int name; /*< GL_VENDOR_extension_name */
- int enabled;
+ enum sl_pp_extension_state state;
};
struct sl_pp_predefined {
diff --git a/src/glsl/pp/sl_pp_extension.c b/src/glsl/pp/sl_pp_extension.c
index 1f00d94ebac..0816e815a4b 100644
--- a/src/glsl/pp/sl_pp_extension.c
+++ b/src/glsl/pp/sl_pp_extension.c
@@ -53,7 +53,7 @@ sl_pp_context_add_extension(struct sl_pp_context *context,
return -1;
}
- ext.enabled = 0;
+ ext.state = SL_PP_EXTENSION_STATE_DISABLED;
context->extensions[context->num_extensions++] = ext;
@@ -62,6 +62,24 @@ sl_pp_context_add_extension(struct sl_pp_context *context,
return 0;
}
+
+enum sl_pp_extension_state
+sl_pp_get_extension_state(const struct sl_pp_context *context,
+ int extension_name)
+{
+ unsigned i;
+
+ for (i = 0; i < context->num_extensions; i++) {
+ if (extension_name == context->extensions[i].name) {
+ return context->extensions[i].state;
+ }
+ }
+
+ assert(0 && "unknown extension");
+ return SL_PP_EXTENSION_STATE_DISABLED;
+}
+
+
/**
* Process a "#extension name: behavior" directive.
*/
@@ -140,7 +158,7 @@ sl_pp_process_extension(struct sl_pp_context *context,
if (extension_name != context->dict.all) {
assert(extension);
- extension->enabled = 1;
+ extension->state = SL_PP_EXTENSION_STATE_REQUIRE;
}
} else if (behavior == context->dict.enable) {
if (out.data.extension == -1) {
@@ -155,7 +173,7 @@ sl_pp_process_extension(struct sl_pp_context *context,
if (extension_name != context->dict.all) {
assert(extension);
- extension->enabled = 1;
+ extension->state = SL_PP_EXTENSION_STATE_ENABLED;
}
} else if (behavior == context->dict.warn) {
if (out.data.extension == -1) {
@@ -166,7 +184,7 @@ sl_pp_process_extension(struct sl_pp_context *context,
if (extension_name != context->dict.all) {
assert(extension);
- extension->enabled = 1;
+ extension->state = SL_PP_EXTENSION_STATE_WARN;
}
} else if (behavior == context->dict.disable) {
if (out.data.extension == -1) {
@@ -177,7 +195,7 @@ sl_pp_process_extension(struct sl_pp_context *context,
if (extension_name != context->dict.all) {
assert(extension);
- extension->enabled = 0;
+ extension->state = SL_PP_EXTENSION_STATE_DISABLED;
}
} else {
strcpy(context->error_msg, "unrecognised behavior name");
diff --git a/src/glsl/pp/sl_pp_if.c b/src/glsl/pp/sl_pp_if.c
index e233999ca8d..25cb7a3ca11 100644
--- a/src/glsl/pp/sl_pp_if.c
+++ b/src/glsl/pp/sl_pp_if.c
@@ -40,7 +40,7 @@ _macro_is_defined(struct sl_pp_context *context,
for (i = 0; i < context->num_extensions; i++) {
if (macro_name == context->extensions[i].name) {
- return context->extensions[i].enabled;
+ return 1;
}
}
diff --git a/src/glsl/pp/sl_pp_public.h b/src/glsl/pp/sl_pp_public.h
index ca6f722543d..e4ad80d0b2a 100644
--- a/src/glsl/pp/sl_pp_public.h
+++ b/src/glsl/pp/sl_pp_public.h
@@ -55,6 +55,10 @@ int
sl_pp_context_add_extension(struct sl_pp_context *context,
const char *name);
+enum sl_pp_extension_state
+sl_pp_get_extension_state(const struct sl_pp_context *context,
+ int extension_name);
+
int
sl_pp_context_add_predefined(struct sl_pp_context *context,
const char *name,