wined3d: Add preliminary support for constant boolean and integer registers in GLSL.

- Separate the declaration phase of the shader string generator into
  the arb and glsl specific files.
- Add declarations and recognition for application-sent constant
  integers and booleans (locally defined ones will follow).
- Standardize capitilization of pixel/vertex specific variable names.
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index 10accc6..eee7fc3 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -1255,6 +1255,8 @@
 #define MAX_REG_OUTPUT 12
 #define MAX_ATTRIBS 16
 #define MAX_CONST_F 256
+#define MAX_CONST_I 16
+#define MAX_CONST_B 16
 
 typedef struct shader_reg_maps {
 
@@ -1266,8 +1268,9 @@
     char attributes[MAX_ATTRIBS];           /* vertex */
 
     char constantsF[MAX_CONST_F];           /* pixel, vertex */
-    /* TODO: Integer and bool constants */
-
+    char constantsI[MAX_CONST_I];           /* pixel & vertex >= 2.0 */
+    char constantsB[MAX_CONST_B];           /* pixel & vertex >= 2.0 */
+    
     /* Semantics maps (semantic -> reg_token)
      * Use 0 as default (bit 31 is always 1 on a valid token) */
     DWORD* semantics_in;                    /* vertex, pixel */