wined3d: Use MAX_TEXTURES instead of magic number.

dlls/wined3d/arb_program_shader.c

@@ -5934,8 +5934,8 @@ static void arbfp_get_caps(const struct wined3d_gl_info *gl_info, struct fragmen
 
     /* TODO: Implement WINED3DTEXOPCAPS_PREMODULATE */
 
-    caps->MaxTextureBlendStages   = 8;
-    caps->MaxSimultaneousTextures = min(gl_info->limits.fragment_samplers, 8);
+    caps->MaxTextureBlendStages   = MAX_TEXTURES;
+    caps->MaxSimultaneousTextures = min(gl_info->limits.fragment_samplers, MAX_TEXTURES);
 }
 
 static DWORD arbfp_get_emul_mask(const struct wined3d_gl_info *gl_info)

dlls/wined3d/ati_fragment_shader.c

@@ -1307,7 +1307,7 @@ static void atifs_get_caps(const struct wined3d_gl_info *gl_info, struct fragmen
      * The proper fix for this is not to use GL_ATI_fragment_shader on cards newer than the
      * r200 series and use an ARB or GLSL shader instead
      */
-    caps->MaxTextureBlendStages   = 8;
+    caps->MaxTextureBlendStages   = MAX_TEXTURES;
     caps->MaxSimultaneousTextures = 6;
 }
 

dlls/wined3d/glsl_shader.c

@@ -9433,8 +9433,8 @@ static void glsl_fragment_pipe_get_caps(const struct wined3d_gl_info *gl_info, s
             | WINED3DTEXOPCAPS_LERP
             | WINED3DTEXOPCAPS_BUMPENVMAP
             | WINED3DTEXOPCAPS_BUMPENVMAPLUMINANCE;
-    caps->MaxTextureBlendStages = 8;
-    caps->MaxSimultaneousTextures = min(gl_info->limits.fragment_samplers, 8);
+    caps->MaxTextureBlendStages = MAX_TEXTURES;
+    caps->MaxSimultaneousTextures = min(gl_info->limits.fragment_samplers, MAX_TEXTURES);
 }
 
 static DWORD glsl_fragment_pipe_get_emul_mask(const struct wined3d_gl_info *gl_info)