wined3d: Add a more formal framework for driver quirks.

This allows better defining of driver desc fixups without adding extra if
lines for each card.

For starters, there's a fixup for the advertised GLSL constants in ATI cards.
fglrx advertises 512 GLSL uniforms instead of the supported 1024(means 128
instead of 256 vec4's). This bug was confirmed by ATI.

dlls/wined3d/directx.c

@@ -4002,10 +4002,39 @@ static const struct driver_version_information driver_version_table[] = {
     /* TODO: Add information about legacy ATI hardware, Intel and other cards */
 };
 
+static BOOL match_ati_r300_to_500(WineD3D_GL_Info *gl_info) {
+    if(gl_info->gl_vendor != VENDOR_ATI) return FALSE;
+    if(gl_info->gl_card == CARD_ATI_RADEON_9500) return TRUE;
+    if(gl_info->gl_card == CARD_ATI_RADEON_X700) return TRUE;
+    if(gl_info->gl_card == CARD_ATI_RADEON_X1600) return TRUE;
+    return FALSE;
+}
+
+static void quirk_arb_constants(WineD3D_GL_Info *gl_info) {
+    TRACE_(d3d_caps)("Using ARB vs constant limit(=%u) for GLSL\n", gl_info->vs_arb_constantsF);
+    gl_info->vs_glsl_constantsF = gl_info->vs_arb_constantsF;
+    TRACE_(d3d_caps)("Using ARB ps constant limit(=%u) for GLSL\n", gl_info->ps_arb_constantsF);
+    gl_info->ps_glsl_constantsF = gl_info->ps_arb_constantsF;
+}
+
+struct driver_quirk quirk_table[] = {
+    {
+        match_ati_r300_to_500,
+        quirk_arb_constants,
+        "ATI GLSL constant quirk"
+    }
+};
+
 static void fixup_extensions(WineD3D_GL_Info *gl_info) {
     unsigned int i;
     BOOL apple = implementation_is_apple(gl_info);
 
+    for(i = 0; i < (sizeof(quirk_table) / sizeof(*quirk_table)); i++) {
+        if(!quirk_table[i].match(gl_info)) continue;
+        TRACE_(d3d_caps)("Applying driver quirk \"%s\"\n", quirk_table[i].description);
+        quirk_table[i].apply(gl_info);
+    }
+
     if(apple) {
         /* MacOS advertises more GLSL vertex shader uniforms than supported by the hardware, and if more are
          * used it falls back to software. While the compiler can detect if the shader uses all declared

dlls/wined3d/wined3d_gl.h

@@ -3963,4 +3963,10 @@ typedef struct _WineD3D_GL_Info {
 } WineD3D_GL_Info;
 #undef USE_GL_FUNC
 
+struct driver_quirk {
+    BOOL        (*match)(WineD3D_GL_Info *gl_info);
+    void        (*apply)(WineD3D_GL_Info *gl_info);
+    const char  *description;
+};
+
 #endif /* __WINE_WINED3D_GL */