nouveau: Enable EXT_texture_env_dot3 on NV10 and NV20

[mesa.git] / src / mesa / drivers / dri / nouveau / nv10_state_frag.c

diff --git a/src/mesa/drivers/dri/nouveau/nv10_state_frag.c b/src/mesa/drivers/dri/nouveau/nv10_state_frag.c
index e78eac353bd6b644d5f66705696018b9ef257d92..c6e4bb0d5875c23aaa3eeafa7507ed66ab36ac1f 100644 (file)
--- a/src/mesa/drivers/dri/nouveau/nv10_state_frag.c
+++ b/src/mesa/drivers/dri/nouveau/nv10_state_frag.c
@@ -276,6 +276,20 @@ setup_combiner(struct combiner_state *rc)
                rc->out = RC_OUT_DOT_AB;
                break;
 
+       case GL_DOT3_RGB_EXT:
+       case GL_DOT3_RGBA_EXT:
+               INPUT_ARG(rc, A, 0, NORMALIZE);
+               INPUT_ARG(rc, B, 1, NORMALIZE);
+
+               rc->out = RC_OUT_DOT_AB;
+
+               /* The EXT version of the DOT3 extension does not support the
+                * scale factor, but the ARB version (and the version in
+                * OpenGL 1.3) does.
+                */
+               rc->logscale = 0;
+               break;
+
        default:
                assert(0);
        }
@@ -305,7 +319,7 @@ nv10_get_general_combiner(struct gl_context *ctx, int i,
        if (ctx->Texture.Unit[i]._Current) {
                INIT_COMBINER(RGB, ctx, &rc_c, i);
 
-               if (rc_c.mode == GL_DOT3_RGBA)
+               if (rc_c.mode == GL_DOT3_RGBA || rc_c.mode == GL_DOT3_RGBA_EXT)
                        rc_a = rc_c;
                else
                        INIT_COMBINER(A, ctx, &rc_a, i);