mesa: comments about vectors vs components

src/mesa/main/config.h

@@ -190,8 +190,8 @@
 #define MAX_PROGRAM_CALL_DEPTH 8
 #define MAX_PROGRAM_TEMPS 128
 #define MAX_PROGRAM_ADDRESS_REGS 2
-#define MAX_UNIFORMS 128
-#define MAX_VARYING 8
+#define MAX_UNIFORMS 128   /**< number of float components */
+#define MAX_VARYING 8      /**< number of float[4] vectors */
 #define MAX_SAMPLERS 8
 /*@}*/
 

src/mesa/main/mtypes.h

@@ -2497,7 +2497,7 @@ struct gl_constants
    GLuint MaxRenderbufferSize;
    /* GL_ARB_vertex_shader */
    GLuint MaxVertexTextureImageUnits;
-   GLuint MaxVarying;
+   GLuint MaxVarying;  /**< Number of float[4] vectors */
 };