summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorBrian Paul <brianp@vmware.com>2009-12-30 10:13:31 -0700
committerBrian Paul <brianp@vmware.com>2009-12-30 10:13:31 -0700
commit1ec6de9f948b45e24ecd0e039819e90863ec9646 (patch)
tree5e48a3d17e3846702af4029c5360223fdf75574c
parent05fb922e61efc2712bf7499f31e4b36b06a54f56 (diff)
mesa: simplify some extension testing code
-rw-r--r--src/mesa/main/extensions.c29
1 files changed, 20 insertions, 9 deletions
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index 9e96eb0403..a1561b4065 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -524,19 +524,33 @@ _mesa_disable_extension( GLcontext *ctx, const char *name )
/**
+ * Check if the i-th extension is enabled.
+ */
+static GLboolean
+extension_enabled(GLcontext *ctx, GLuint index)
+{
+ const GLboolean *base = (const GLboolean *) &ctx->Extensions;
+ if (!default_extensions[index].flag_offset ||
+ *(base + default_extensions[index].flag_offset)) {
+ return GL_TRUE;
+ }
+ else {
+ return GL_FALSE;
+ }
+}
+
+
+/**
* Test if the named extension is enabled in this context.
*/
GLboolean
_mesa_extension_is_enabled( GLcontext *ctx, const char *name )
{
- const GLboolean *base = (const GLboolean *) &ctx->Extensions;
GLuint i;
for (i = 0 ; i < Elements(default_extensions) ; i++) {
if (_mesa_strcmp(default_extensions[i].name, name) == 0) {
- if (!default_extensions[i].flag_offset)
- return GL_TRUE;
- return *(base + default_extensions[i].flag_offset);
+ return extension_enabled(ctx, i);
}
}
return GL_FALSE;
@@ -644,7 +658,6 @@ _mesa_init_extensions( GLcontext *ctx )
GLubyte *
_mesa_make_extension_string( GLcontext *ctx )
{
- const GLboolean *base = (const GLboolean *) &ctx->Extensions;
const char *extraExt = get_extension_override(ctx);
GLuint extStrLen = 0;
char *s;
@@ -652,8 +665,7 @@ _mesa_make_extension_string( GLcontext *ctx )
/* first, compute length of the extension string */
for (i = 0 ; i < Elements(default_extensions) ; i++) {
- if (!default_extensions[i].flag_offset ||
- *(base + default_extensions[i].flag_offset)) {
+ if (extension_enabled(ctx, i)) {
extStrLen += (GLuint)_mesa_strlen(default_extensions[i].name) + 1;
}
}
@@ -669,8 +681,7 @@ _mesa_make_extension_string( GLcontext *ctx )
/* second, build the extension string */
extStrLen = 0;
for (i = 0 ; i < Elements(default_extensions) ; i++) {
- if (!default_extensions[i].flag_offset ||
- *(base + default_extensions[i].flag_offset)) {
+ if (extension_enabled(ctx, i)) {
GLuint len = (GLuint)_mesa_strlen(default_extensions[i].name);
_mesa_memcpy(s + extStrLen, default_extensions[i].name, len);
extStrLen += len;