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-rw-r--r--src/glsl/pp/SConscript1
-rw-r--r--src/glsl/pp/sl_pp_extension.c129
-rw-r--r--src/glsl/pp/sl_pp_process.c4
-rw-r--r--src/glsl/pp/sl_pp_process.h7
-rw-r--r--src/glsl/pp/sl_pp_token.h6
5 files changed, 147 insertions, 0 deletions
diff --git a/src/glsl/pp/SConscript b/src/glsl/pp/SConscript
index 0c1b4ac2e99..dae8830eeb6 100644
--- a/src/glsl/pp/SConscript
+++ b/src/glsl/pp/SConscript
@@ -12,6 +12,7 @@ glsl = env.StaticLibrary(
'sl_pp_define.c',
'sl_pp_error.c',
'sl_pp_expression.c',
+ 'sl_pp_extension.c',
'sl_pp_if.c',
'sl_pp_macro.c',
'sl_pp_pragma.c',
diff --git a/src/glsl/pp/sl_pp_extension.c b/src/glsl/pp/sl_pp_extension.c
new file mode 100644
index 00000000000..3d223a1a548
--- /dev/null
+++ b/src/glsl/pp/sl_pp_extension.c
@@ -0,0 +1,129 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include <stdlib.h>
+#include "sl_pp_process.h"
+
+
+int
+sl_pp_process_extension(struct sl_pp_context *context,
+ const struct sl_pp_token_info *input,
+ unsigned int first,
+ unsigned int last,
+ struct sl_pp_process_state *state)
+{
+ int all_extensions = -1;
+ const char *extension_name = NULL;
+ const char *behavior = NULL;
+ struct sl_pp_token_info out;
+
+ all_extensions = sl_pp_context_add_unique_str(context, "all");
+ if (all_extensions == -1) {
+ return -1;
+ }
+
+ if (first < last && input[first].token == SL_PP_IDENTIFIER) {
+ extension_name = sl_pp_context_cstr(context, input[first].data.identifier);
+ first++;
+ }
+ if (!extension_name) {
+ strcpy(context->error_msg, "expected identifier after `#extension'");
+ return -1;
+ }
+
+ if (!strcmp(extension_name, "all")) {
+ out.data.extension = all_extensions;
+ } else {
+ out.data.extension = -1;
+ }
+
+ while (first < last && input[first].token == SL_PP_WHITESPACE) {
+ first++;
+ }
+
+ if (first < last && input[first].token == SL_PP_COLON) {
+ first++;
+ } else {
+ strcpy(context->error_msg, "expected `:' after extension name");
+ return -1;
+ }
+
+ while (first < last && input[first].token == SL_PP_WHITESPACE) {
+ first++;
+ }
+
+ if (first < last && input[first].token == SL_PP_IDENTIFIER) {
+ behavior = sl_pp_context_cstr(context, input[first].data.identifier);
+ first++;
+ }
+ if (!behavior) {
+ strcpy(context->error_msg, "expected identifier after `:'");
+ return -1;
+ }
+
+ if (!strcmp(behavior, "require")) {
+ strcpy(context->error_msg, "unable to enable required extension");
+ return -1;
+ } else if (!strcmp(behavior, "enable")) {
+ if (out.data.extension == all_extensions) {
+ strcpy(context->error_msg, "unable to enable all extensions");
+ return -1;
+ } else {
+ return 0;
+ }
+ } else if (!strcmp(behavior, "warn")) {
+ if (out.data.extension == all_extensions) {
+ out.token = SL_PP_EXTENSION_WARN;
+ } else {
+ return 0;
+ }
+ } else if (!strcmp(behavior, "disable")) {
+ if (out.data.extension == all_extensions) {
+ out.token = SL_PP_EXTENSION_DISABLE;
+ } else {
+ return 0;
+ }
+ } else {
+ strcpy(context->error_msg, "unrecognised behavior name");
+ return -1;
+ }
+
+ while (first < last && input[first].token == SL_PP_WHITESPACE) {
+ first++;
+ }
+
+ if (first < last) {
+ strcpy(context->error_msg, "expected end of line after behavior name");
+ return -1;
+ }
+
+ if (sl_pp_process_out(state, &out)) {
+ return -1;
+ }
+
+ return 0;
+}
diff --git a/src/glsl/pp/sl_pp_process.c b/src/glsl/pp/sl_pp_process.c
index 62b73426c5f..be01f9139c1 100644
--- a/src/glsl/pp/sl_pp_process.c
+++ b/src/glsl/pp/sl_pp_process.c
@@ -154,6 +154,10 @@ sl_pp_process(struct sl_pp_context *context,
} else if (!strcmp(name, "error")) {
sl_pp_process_error(context, input, first, last);
return -1;
+ } else if (!strcmp(name, "extension")) {
+ if (sl_pp_process_extension(context, input, first, last, &state)) {
+ return -1;
+ }
} else if (!strcmp(name, "pragma")) {
if (sl_pp_process_pragma(context, input, first, last, &state)) {
return -1;
diff --git a/src/glsl/pp/sl_pp_process.h b/src/glsl/pp/sl_pp_process.h
index 9a29c03a701..58918665434 100644
--- a/src/glsl/pp/sl_pp_process.h
+++ b/src/glsl/pp/sl_pp_process.h
@@ -106,6 +106,13 @@ sl_pp_process_pragma(struct sl_pp_context *context,
struct sl_pp_process_state *state);
int
+sl_pp_process_extension(struct sl_pp_context *context,
+ const struct sl_pp_token_info *input,
+ unsigned int first,
+ unsigned int last,
+ struct sl_pp_process_state *state);
+
+int
sl_pp_process_out(struct sl_pp_process_state *state,
const struct sl_pp_token_info *token);
diff --git a/src/glsl/pp/sl_pp_token.h b/src/glsl/pp/sl_pp_token.h
index 566274ea90e..7b60183a041 100644
--- a/src/glsl/pp/sl_pp_token.h
+++ b/src/glsl/pp/sl_pp_token.h
@@ -91,6 +91,11 @@ enum sl_pp_token {
SL_PP_PRAGMA_OPTIMIZE,
SL_PP_PRAGMA_DEBUG,
+ SL_PP_EXTENSION_REQUIRE,
+ SL_PP_EXTENSION_ENABLE,
+ SL_PP_EXTENSION_WARN,
+ SL_PP_EXTENSION_DISABLE,
+
SL_PP_EOF
};
@@ -99,6 +104,7 @@ union sl_pp_token_data {
int number;
char other;
int pragma;
+ int extension;
};
struct sl_pp_token_info {
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 07:05:58 +0000