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mesa: simplify some extension testing code

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This commit is contained in:
Brian Paul
2009-12-30 10:13:31 -07:00
parent 05fb922e61
commit 1ec6de9f94
1 changed files with 20 additions and 9 deletions
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src/mesa/main/extensions.c
+20 -9
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@@ -523,20 +523,34 @@ _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;