Merge branch 'gallium-vertex-linear' into gallium-0.1

Conflicts:

	src/gallium/auxiliary/draw/draw_pt_varray.c

2 files changed, 43 insertions, 11 deletions

diff --git a/src/mesa/shader/prog_statevars.c b/src/mesa/shader/prog_statevars.c
index ba3c9884456..44fbfdcd041 100644
--- a/src/mesa/shader/prog_statevars.c
+++ b/src/mesa/shader/prog_statevars.c
@@ -134,10 +134,6 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
 	       value[3] = 1.0;
             }						  
             return;
-	 case STATE_POSITION_NORMALIZED:
-            COPY_4V(value, ctx->Light.Light[ln].EyePosition);
-	    NORMALIZE_3FV( value );
-            return;
          default:
             _mesa_problem(ctx, "Invalid light state in fetch_state");
             return;
@@ -401,7 +397,11 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
    case STATE_INTERNAL:
       switch (state[1]) {
       case STATE_NORMAL_SCALE:
-         ASSIGN_4V(value, ctx->_ModelViewInvScale, 0, 0, 1);
+         ASSIGN_4V(value, 
+                   ctx->_ModelViewInvScale, 
+                   ctx->_ModelViewInvScale, 
+                   ctx->_ModelViewInvScale, 
+                   1);
          return;
       case STATE_TEXRECT_SCALE:
          {
@@ -431,15 +431,46 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
          value[2] = ctx->Fog.Density * ONE_DIV_LN2;
          value[3] = ctx->Fog.Density * ONE_DIV_SQRT_LN2;
          return;
-      case STATE_SPOT_DIR_NORMALIZED: {
+
+      case STATE_LIGHT_SPOT_DIR_NORMALIZED: {
          /* here, state[2] is the light number */
          /* pre-normalize spot dir */
          const GLuint ln = (GLuint) state[2];
-         COPY_3V(value, ctx->Light.Light[ln].EyeDirection);
-         NORMALIZE_3FV(value);
+         COPY_3V(value, ctx->Light.Light[ln]._NormDirection);
          value[3] = ctx->Light.Light[ln]._CosCutoff;
          return;
       }
+
+      case STATE_LIGHT_POSITION: {
+         const GLuint ln = (GLuint) state[2];
+         COPY_4V(value, ctx->Light.Light[ln]._Position);
+         return;
+      }
+
+      case STATE_LIGHT_POSITION_NORMALIZED: {
+         const GLuint ln = (GLuint) state[2];
+         COPY_4V(value, ctx->Light.Light[ln]._Position);
+         NORMALIZE_3FV( value );
+         return;
+      }
+
+      case STATE_LIGHT_HALF_VECTOR: {
+         const GLuint ln = (GLuint) state[2];
+         GLfloat p[3];
+         /* Compute infinite half angle vector:
+          *   halfVector = normalize(normalize(lightPos) + (0, 0, 1))
+          * light.EyePosition.w should be 0 for infinite lights.
+          */
+         COPY_3V(p, ctx->Light.Light[ln]._Position);
+         NORMALIZE_3FV(p);
+         ADD_3V(value, p, ctx->_EyeZDir);
+         NORMALIZE_3FV(value);
+         value[3] = 1.0;
+         return;
+      }						  
+
+
+
       case STATE_PT_SCALE:
          value[0] = ctx->Pixel.RedScale;
          value[1] = ctx->Pixel.GreenScale;
@@ -696,7 +727,6 @@ append_token(char *dst, gl_state_index k)
       append(dst, "normalScale");
       break;
    case STATE_INTERNAL:
-   case STATE_POSITION_NORMALIZED:
       append(dst, "(internal)");
       break;
    case STATE_PT_SCALE:
diff --git a/src/mesa/shader/prog_statevars.h b/src/mesa/shader/prog_statevars.h
index d12142055fc..a515fda3aae 100644
--- a/src/mesa/shader/prog_statevars.h
+++ b/src/mesa/shader/prog_statevars.h
@@ -106,9 +106,11 @@ typedef enum gl_state_index_ {
    STATE_INTERNAL,		/* Mesa additions */
    STATE_NORMAL_SCALE,
    STATE_TEXRECT_SCALE,
-   STATE_POSITION_NORMALIZED,   /* normalized light position */
    STATE_FOG_PARAMS_OPTIMIZED,  /* for faster fog calc */
-   STATE_SPOT_DIR_NORMALIZED,   /* pre-normalized spot dir */
+   STATE_LIGHT_SPOT_DIR_NORMALIZED,   /* pre-normalized spot dir */
+   STATE_LIGHT_POSITION,              /* object vs eye space */
+   STATE_LIGHT_POSITION_NORMALIZED,   /* object vs eye space */
+   STATE_LIGHT_HALF_VECTOR,           /* object vs eye space */
    STATE_PT_SCALE,              /**< Pixel transfer RGBA scale */
    STATE_PT_BIAS,               /**< Pixel transfer RGBA bias */
    STATE_PCM_SCALE,             /**< Post color matrix RGBA scale */