Get Polygon offset fill to work.

[profile/ivi/mesa.git] / src / mesa / drivers / dri / r300 / r300_state.c

diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c
index 306a921..72dfe7a 100644 (file)
--- a/src/mesa/drivers/dri/r300/r300_state.c
+++ b/src/mesa/drivers/dri/r300/r300_state.c
@@ -417,9 +417,8 @@ static void r300UpdateCulling(GLcontext* ctx)
                if (ctx->Polygon.FrontFace == GL_CW)
                        val |= R300_FRONT_FACE_CW;
                else
-                       val |= R300_FRONT_FACE_CCW;
+                       val |= R300_FRONT_FACE_CCW;             
        }
-
        r300->hw.cul.cmd[R300_CUL_CULL] = val;
 }
 
@@ -479,15 +478,8 @@ static void r300Enable(GLcontext* ctx, GLenum cap, GLboolean state)
 
        case GL_STENCIL_TEST:
 
-               {
-               static int stencil=1;
-               if(stencil){
-                       fprintf(stderr, "%s:%s - do not know how to enable stencil. Help me !\n",
-                               __FILE__, __FUNCTION__);
-                       stencil=0;
-                       }
-               }
-
+               WARN_ONCE("Do not know how to enable stencil. Help me !\n");
+               
                if (r300->state.hw_stencil) {
                        //fprintf(stderr, "Stencil %s\n", state ? "enabled" : "disabled");
                        R300_STATECHANGE(r300, zs);
@@ -506,6 +498,14 @@ static void r300Enable(GLcontext* ctx, GLenum cap, GLboolean state)
        case GL_CULL_FACE:
                r300UpdateCulling(ctx);
                break;
+       case GL_POLYGON_OFFSET_FILL:
+               R300_STATECHANGE(r300, unk42B4);
+               if (state) {
+                       r300->hw.unk42B4.cmd[1] = (1<<1);
+               } else {
+                       r300->hw.unk42B4.cmd[1] = 0;
+               }
+               break;
        case GL_VERTEX_PROGRAM_ARB:
                //TCL_FALLBACK(rmesa->glCtx, R200_TCL_FALLBACK_TCL_DISABLE, state);
        break;
@@ -684,6 +684,9 @@ static void r300PointSize(GLcontext * ctx, GLfloat size)
                    return R300_ZS_DECR_WRAP;
        case GL_INVERT:
                    return R300_ZS_INVERT;
+       default:
+               WARN_ONCE("Do not know how to translate stencil op");
+               return R300_ZS_KEEP;
        }
 }
 
@@ -804,6 +807,28 @@ static void r300DepthRange(GLcontext * ctx, GLclampd nearval, GLclampd farval)
        r300UpdateWindow(ctx);
 }
 
+/* =============================================================
+ * Polygon state
+ */
+
+static void r300PolygonOffset(GLcontext * ctx, GLfloat factor, GLfloat units)
+{
+       r300ContextPtr rmesa = R300_CONTEXT(ctx);
+       GLfloat constant = units * rmesa->state.depth.scale;
+
+/*    factor *= 2; */
+/*    constant *= 2; */
+
+/*    fprintf(stderr, "%s f:%f u:%f\n", __FUNCTION__, factor, constant); */
+
+       WARN_ONCE("ZBIAS registers locations might not be correct\n");
+
+       R200_STATECHANGE(rmesa, zbs);
+       rmesa->hw.zbs.cmd[R300_ZBS_FACTOR] = r300PackFloat32(factor);
+       rmesa->hw.zbs.cmd[R300_ZBS_CONSTANT] = r300PackFloat32(constant);
+}
+
+
 /* Routing and texture-related */
 
 void r300_setup_routing(GLcontext *ctx, GLboolean immediate)
@@ -1637,8 +1662,10 @@ void r300ResetHwState(r300ContextPtr r300)
 
        r300->hw.unk42A0.cmd[1] = 0x00000000;
 
+       #if 0
        r300->hw.unk42B4.cmd[1] = 0x00000000;
-
+       #endif
+       
        r300->hw.unk42C0.cmd[1] = 0x4B7FFFFF;
        r300->hw.unk42C0.cmd[2] = 0x00000000;
 
@@ -1836,4 +1863,7 @@ void r300InitStateFuncs(struct dd_function_table* functions)
        functions->Viewport = r300Viewport;
        functions->DepthRange = r300DepthRange;
        functions->PointSize = r300PointSize;
+       
+       
+       functions->PolygonOffset = r300PolygonOffset;
 }