From 068c7bd912283e051a55b2fd5c4568685d10f3ed Mon Sep 17 00:00:00 2001
From: Brian <brian.paul@tungstengraphics.com>
Date: Tue, 30 Oct 2007 12:39:58 -0600
Subject: [PATCH] add state vars for color matrix, pixel transfer scale&bias

---
 src/mesa/shader/prog_statevars.c | 16 ++++++++++++++++
 src/mesa/shader/prog_statevars.h |  3 +++
 2 files changed, 19 insertions(+)

diff --git a/src/mesa/shader/prog_statevars.c b/src/mesa/shader/prog_statevars.c
index 1bb7142c601..68eaf0be941 100644
--- a/src/mesa/shader/prog_statevars.c
+++ b/src/mesa/shader/prog_statevars.c
@@ -278,6 +278,7 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
    case STATE_MVP_MATRIX:
    case STATE_TEXTURE_MATRIX:
    case STATE_PROGRAM_MATRIX:
+   case STATE_COLOR_MATRIX:
       {
          /* state[0] = modelview, projection, texture, etc. */
          /* state[1] = which texture matrix or program matrix */
@@ -311,6 +312,9 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
          else if (mat == STATE_PROGRAM_MATRIX) {
             matrix = ctx->ProgramMatrixStack[index].Top;
          }
+         else if (mat == STATE_COLOR_MATRIX) {
+            matrix = ctx->ColorMatrixStack.Top;
+         }
          else {
             _mesa_problem(ctx, "Bad matrix name in _mesa_fetch_state()");
             return;
@@ -434,6 +438,18 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
          value[3] = ctx->Light.Light[ln]._CosCutoff;
          return;
       }
+      case STATE_PT_SCALE:
+         value[0] = ctx->Pixel.RedScale;
+         value[1] = ctx->Pixel.GreenScale;
+         value[2] = ctx->Pixel.BlueScale;
+         value[3] = ctx->Pixel.AlphaScale;
+         break;
+      case STATE_PT_BIAS:
+         value[0] = ctx->Pixel.RedBias;
+         value[1] = ctx->Pixel.GreenBias;
+         value[2] = ctx->Pixel.BlueBias;
+         value[3] = ctx->Pixel.AlphaBias;
+         break;
       default:
          /* unknown state indexes are silently ignored
           *  should be handled by the driver.
diff --git a/src/mesa/shader/prog_statevars.h b/src/mesa/shader/prog_statevars.h
index 3281a4a2a0f..9fedcfab8af 100644
--- a/src/mesa/shader/prog_statevars.h
+++ b/src/mesa/shader/prog_statevars.h
@@ -67,6 +67,7 @@ typedef enum gl_state_index_ {
    STATE_MVP_MATRIX,
    STATE_TEXTURE_MATRIX,
    STATE_PROGRAM_MATRIX,
+   STATE_COLOR_MATRIX,
    STATE_MATRIX_INVERSE,
    STATE_MATRIX_TRANSPOSE,
    STATE_MATRIX_INVTRANS,
@@ -108,6 +109,8 @@ typedef enum gl_state_index_ {
    STATE_POSITION_NORMALIZED,   /* normalized light position */
    STATE_FOG_PARAMS_OPTIMIZED,  /* for faster fog calc */
    STATE_SPOT_DIR_NORMALIZED,   /* pre-normalized spot dir */
+   STATE_PT_SCALE,              /**< Pixel transfer RGBA scale */
+   STATE_PT_BIAS,               /**< Pixel transfer RGBA bias */
    STATE_INTERNAL_DRIVER	/* first available state index for drivers (must be last) */
 } gl_state_index;
 
-- 
2.30.2