mesa: add support for ATI_envmap_bumpmap

add new entrypoints, new texture format, etc
translate in texenvprogram.c for drivers using the mesa-generated tex env
fragment program
also handled in swrast, but not tested (cannot work due to negative texel
results not handled correctly)

2 files changed, 30 insertions, 0 deletions

diff --git a/src/mesa/shader/prog_statevars.c b/src/mesa/shader/prog_statevars.c
index 1f7d87ccc94..f51d9e26512 100644
--- a/src/mesa/shader/prog_statevars.c
+++ b/src/mesa/shader/prog_statevars.c
@@ -506,6 +506,26 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
             }
          }
          return;
+      case STATE_ROT_MATRIX_0:
+         {
+            const int unit = (int) state[2];
+            GLfloat *rotMat22 = ctx->Texture.Unit[unit].RotMatrix;
+            value[0] = rotMat22[0]; 
+            value[1] = rotMat22[2];
+            value[2] = 0.0;
+            value[3] = 0.0;
+         }
+         break;
+      case STATE_ROT_MATRIX_1:
+         {
+            const int unit = (int) state[2];
+            GLfloat *rotMat22 = ctx->Texture.Unit[unit].RotMatrix;
+            value[0] = rotMat22[1];
+            value[1] = rotMat22[3];
+            value[2] = 0.0;
+            value[3] = 0.0;
+         }
+         break;
 
          /* XXX: make sure new tokens added here are also handled in the 
           * _mesa_program_state_flags() switch, below.
@@ -591,6 +611,8 @@ _mesa_program_state_flags(const gl_state_index state[STATE_LENGTH])
 
       case STATE_TEXRECT_SCALE:
       case STATE_SHADOW_AMBIENT:
+      case STATE_ROT_MATRIX_0:
+      case STATE_ROT_MATRIX_1:
 	 return _NEW_TEXTURE;
       case STATE_FOG_PARAMS_OPTIMIZED:
 	 return _NEW_FOG;
@@ -806,6 +828,12 @@ append_token(char *dst, gl_state_index k)
    case STATE_SHADOW_AMBIENT:
       append(dst, "CompareFailValue");
       break;
+   case STATE_ROT_MATRIX_0:
+      append(dst, "rotMatrixRow0");
+      break;
+   case STATE_ROT_MATRIX_1:
+      append(dst, "rotMatrixRow1");
+      break;
    default:
       /* probably STATE_INTERNAL_DRIVER+i (driver private state) */
       append(dst, "driverState");
diff --git a/src/mesa/shader/prog_statevars.h b/src/mesa/shader/prog_statevars.h
index d5358a1d042..d563080db1c 100644
--- a/src/mesa/shader/prog_statevars.h
+++ b/src/mesa/shader/prog_statevars.h
@@ -117,6 +117,8 @@ typedef enum gl_state_index_ {
    STATE_PCM_SCALE,             /**< Post color matrix RGBA scale */
    STATE_PCM_BIAS,              /**< Post color matrix RGBA bias */
    STATE_SHADOW_AMBIENT,        /**< ARB_shadow_ambient fail value; token[2] is texture unit index */
+   STATE_ROT_MATRIX_0,          /**< ATI_envmap_bumpmap, rot matrix row 0 */
+   STATE_ROT_MATRIX_1,          /**< ATI_envmap_bumpmap, rot matrix row 1 */
    STATE_INTERNAL_DRIVER	/* first available state index for drivers (must be last) */
 } gl_state_index;