Merge commit 'origin/gallium-master-merge'

This is the big merge of the gallium-0.2 branch into master.
gallium-master-merge was just the staging area for it.
Both gallium-0.2 and gallium-master-merge are considered closed now.

Conflicts:

	progs/demos/Makefile
	src/mesa/main/state.c
	src/mesa/main/texenvprogram.c

1 files changed, 24 insertions, 0 deletions

diff --git a/progs/demos/arbfslight.c b/progs/demos/arbfslight.c
index 69575f0623..a84491d34f 100644
--- a/progs/demos/arbfslight.c
+++ b/progs/demos/arbfslight.c
@@ -208,7 +208,31 @@ static void Init (void)
       "   // Compute dot product of light direction and normal vector\n"
       "   float dotProd = max (dot (lightPos, normalize (normal)), 0.0);\n"
       "   // Compute diffuse and specular contributions\n"
+#if 1
       "   gl_FragColor = diffuse * dotProd + specular * pow (dotProd, 20.0);\n"
+#elif 1 /* test IF/ELSE/ENDIF */
+      "   if (normal.y > 0.0) { \n"
+      "      gl_FragColor = diffuse * dotProd + specular * pow (dotProd, 20.0);\n"
+      "   } \n"
+      "   else { \n"
+      "      if (normal.x < 0.0) { \n"
+      "         gl_FragColor = vec4(1, 0, 0, 0); \n"
+      "      } \n"
+      "      else { \n"
+      "         gl_FragColor = vec4(1, 1, 0, 0); \n"
+      "      } \n"
+      "   } \n"
+#elif 1 /* test LOOP */
+      "   while (1) { \n"
+      "      if (normal.y >= 0.0) { \n"
+      "         gl_FragColor = vec4(1, 0, 0, 0); \n"
+      "         break; \n"
+      "      } else { \n"
+      "         gl_FragColor = diffuse * dotProd + specular * pow (dotProd, 20.0);\n"
+      "         break; \n"
+      "      } \n"
+      "   } \n"
+#endif
       "}\n"
    ;
    static const char *vertShaderText =