Added MOJOSHADER_maxShaderModel().

icculus · Nov 8, 2008 · 40be294 · 40be294
1 parent 25ffe00
commit 40be294
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Showing 3 changed files with 25 additions and 1 deletion.
diff --git a/availableprofiles.c b/availableprofiles.c
@@ -27,7 +27,10 @@ static int check_available(void)
     {
         int i;
         for (i = 0; i < total; i++)
-            printf("%s\n", avail[i]);
+        {
+            printf("%s (Shader Model %d)\n", avail[i],
+                   MOJOSHADER_maxShaderModel(avail[i]));
+        } // for
     } // else
 
     return 0;

diff --git a/mojoshader.c b/mojoshader.c
@@ -7708,5 +7708,21 @@ const char *MOJOSHADER_changeset(void)
     return MOJOSHADER_CHANGESET;
 } // MOJOSHADER_changeset
 
+
+int MOJOSHADER_maxShaderModel(const char *profile)
+{
+    #define PROFILE_SHADER_MODEL(p,v) if (strcmp(profile, p) == 0) return v;
+    PROFILE_SHADER_MODEL(MOJOSHADER_PROFILE_D3D, 3);
+    PROFILE_SHADER_MODEL(MOJOSHADER_PROFILE_PASSTHROUGH, 3);
+    PROFILE_SHADER_MODEL(MOJOSHADER_PROFILE_GLSL, 3);
+    PROFILE_SHADER_MODEL(MOJOSHADER_PROFILE_GLSL120, 3);
+    PROFILE_SHADER_MODEL(MOJOSHADER_PROFILE_ARB1, 2);
+    PROFILE_SHADER_MODEL(MOJOSHADER_PROFILE_NV2, 2);
+    PROFILE_SHADER_MODEL(MOJOSHADER_PROFILE_NV3, 2);
+    PROFILE_SHADER_MODEL(MOJOSHADER_PROFILE_NV4, 3);
+    #undef PROFILE_SHADER_MODEL
+    return -1;  // unknown profile?
+} // MOJOSHADER_maxShaderModel
+
 // end of mojoshader.c ...
 
diff --git a/mojoshader.h b/mojoshader.h
@@ -417,6 +417,11 @@ typedef struct
  */
 #define MOJOSHADER_PROFILE_NV4 "nv4"
 
+/*
+ * Determine the highest supported Shader Model for a profile.
+ */
+int MOJOSHADER_maxShaderModel(const char *profile);
+
 
 /*
  * Parse a compiled Direct3D shader's bytecode.