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authormarha <marha@users.sourceforge.net>2013-03-04 09:37:48 +0100
committermarha <marha@users.sourceforge.net>2013-03-04 09:37:48 +0100
commited474047e06f28fe740130f3bb13d3a40f4833a9 (patch)
tree35a48f61c00ebb1f0579159c25dbbd1bfe812849 /mesalib/src/mesa/main/version.c
parent3c0e16af61a9e0b6f9edab1d403adfaa85456599 (diff)
parentd4d629b77742e60caac3d120ff40e9f386380af2 (diff)
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Merge remote-tracking branch 'origin/released'
* origin/released: fontconfig libX11 mesalib pixman xserver xkeyboard-config git update 4 Mar 2013 Conflicts: libX11/src/xkb/XKBGAlloc.c libX11/src/xkb/XKBMisc.c
Diffstat (limited to 'mesalib/src/mesa/main/version.c')
-rw-r--r--mesalib/src/mesa/main/version.c94
1 files changed, 67 insertions, 27 deletions
diff --git a/mesalib/src/mesa/main/version.c b/mesalib/src/mesa/main/version.c
index 281d652a5..c5b44b7c1 100644
--- a/mesalib/src/mesa/main/version.c
+++ b/mesalib/src/mesa/main/version.c
@@ -50,6 +50,45 @@ check_for_ending(const char *string, const char *ending)
}
/**
+ * Returns the gl override data
+ *
+ * version > 0 indicates there is an override requested
+ * fwd_context is only valid if version > 0
+ */
+static void
+get_gl_override(int *version, GLboolean *fwd_context)
+{
+ const char *env_var = "MESA_GL_VERSION_OVERRIDE";
+ const char *version_str;
+ int major, minor, n;
+ static int override_version = -1;
+ static GLboolean fc_suffix = GL_FALSE;
+
+ if (override_version < 0) {
+ override_version = 0;
+
+ version_str = getenv(env_var);
+ if (version_str) {
+ fc_suffix = check_for_ending(version_str, "FC");
+
+ n = sscanf(version_str, "%u.%u", &major, &minor);
+ if (n != 2) {
+ fprintf(stderr, "error: invalid value for %s: %s\n", env_var, version_str);
+ override_version = 0;
+ } else {
+ override_version = major * 10 + minor;
+ if (override_version < 30 && fc_suffix) {
+ fprintf(stderr, "error: invalid value for %s: %s\n", env_var, version_str);
+ }
+ }
+ }
+ }
+
+ *version = override_version;
+ *fwd_context = fc_suffix;
+}
+
+/**
* Builds the MESA version string.
*/
static void
@@ -87,41 +126,42 @@ create_version_string(struct gl_context *ctx, const char *prefix)
void
_mesa_override_gl_version(struct gl_context *ctx)
{
- const char *env_var = "MESA_GL_VERSION_OVERRIDE";
- const char *version;
- int n;
- int major, minor;
- GLboolean fc_suffix;
+ int version;
+ GLboolean fwd_context;
- version = getenv(env_var);
- if (!version) {
- return;
- }
+ get_gl_override(&version, &fwd_context);
- fc_suffix = check_for_ending(version, "FC");
-
- n = sscanf(version, "%u.%u", &major, &minor);
- if (n != 2) {
- fprintf(stderr, "error: invalid value for %s: %s\n", env_var, version);
- } else {
- ctx->Version = major * 10 + minor;
- if (ctx->Version < 30 && fc_suffix) {
- fprintf(stderr, "error: invalid value for %s: %s\n", env_var, version);
+ if (version > 0) {
+ ctx->Version = version;
+ if (version >= 30 && fwd_context) {
+ ctx->API = API_OPENGL_CORE;
+ ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT;
+ } else if (version >= 31) {
+ ctx->API = API_OPENGL_CORE;
} else {
- if (ctx->Version >= 30 && fc_suffix) {
- ctx->API = API_OPENGL_CORE;
- ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT;
- } else if (ctx->Version >= 31) {
- ctx->API = API_OPENGL_CORE;
- } else {
- ctx->API = API_OPENGL_COMPAT;
- }
- create_version_string(ctx, "");
+ ctx->API = API_OPENGL_COMPAT;
}
+ create_version_string(ctx, "");
}
}
/**
+ * Returns the gl override value
+ *
+ * version > 0 indicates there is an override requested
+ */
+int
+_mesa_get_gl_version_override(void)
+{
+ int version;
+ GLboolean fwd_context;
+
+ get_gl_override(&version, &fwd_context);
+
+ return version;
+}
+
+/**
* Override the context's GLSL version if the environment variable
* MESA_GLSL_VERSION_OVERRIDE is set. Valid values for
* MESA_GLSL_VERSION_OVERRIDE are integers, such as "130".