Fix several conformance problems. Hack solution to line stipple problem.

5 files changed, 148 insertions, 108 deletions

diff --git a/src/mesa/swrast_setup/ss_context.c b/src/mesa/swrast_setup/ss_context.c
index de3f36288a7..a6c7aa8740a 100644
--- a/src/mesa/swrast_setup/ss_context.c
+++ b/src/mesa/swrast_setup/ss_context.c
@@ -1,4 +1,4 @@
-/* $Id: ss_context.c,v 1.7 2001/01/08 04:09:41 keithw Exp $ */
+/* $Id: ss_context.c,v 1.8 2001/01/16 05:29:43 keithw Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -27,64 +27,17 @@
  *    Keith Whitwell <[email protected]>
  */
 
-
 #include "glheader.h"
 #include "mem.h"
-
-
 #include "ss_context.h"
 #include "ss_triangle.h"
 #include "ss_vb.h"
-
 #include "swrast_setup.h"
-
 #include "tnl/t_context.h"
 
-/* Stub for swsetup->Triangle to select a true triangle function 
- * after a state change.
- */
-static void 
-_swsetup_validate_quad( GLcontext *ctx, GLuint v0, GLuint v1, 
-			GLuint v2, GLuint v3 )
-{
-   _swsetup_choose_trifuncs( ctx );
-   SWSETUP_CONTEXT(ctx)->Quad( ctx, v0, v1, v2, v3 );
-}
-
-static void 
-_swsetup_validate_triangle( GLcontext *ctx, GLuint v0, GLuint v1, GLuint v2 )
-{
-   _swsetup_choose_trifuncs( ctx );
-   SWSETUP_CONTEXT(ctx)->Triangle( ctx, v0, v1, v2 );
-}
-
-static void 
-_swsetup_validate_line( GLcontext *ctx, GLuint v0, GLuint v1 )
-{
-   _swsetup_choose_trifuncs( ctx );
-   SWSETUP_CONTEXT(ctx)->Line( ctx, v0, v1 );
-}
-
-
-static void 
-_swsetup_validate_points( GLcontext *ctx, GLuint first, GLuint last )
-{
-   _swsetup_choose_trifuncs( ctx );
-   SWSETUP_CONTEXT(ctx)->Points( ctx, first, last );
-}
-
-
-
-static void 
-_swsetup_validate_buildprojverts( GLcontext *ctx,
-				  GLuint start, GLuint end, GLuint new_inputs )
-{
-   _swsetup_choose_rastersetup_func( ctx );
-   SWSETUP_CONTEXT(ctx)->BuildProjVerts( ctx, start, end, new_inputs );
-}
-
-
+ 
 #define _SWSETUP_NEW_VERTS (_NEW_RENDERMODE|	\
+                            _NEW_LIGHT|         \
 			    _NEW_TEXTURE|	\
 			    _NEW_COLOR|		\
 			    _NEW_FOG|		\
@@ -93,38 +46,13 @@ _swsetup_validate_buildprojverts( GLcontext *ctx,
 #define _SWSETUP_NEW_RENDERINDEX (_NEW_POLYGON|_NEW_LIGHT)
 
 
-#if 0
-/* TODO: sleep/wakeup mechanism
- */
-static void
-_swsetup_sleep( GLcontext *ctx, GLuint new_state )
-{
-}
-#endif
-
-static void
-_swsetup_invalidate_state( GLcontext *ctx, GLuint new_state )
-{
-   SScontext *swsetup = SWSETUP_CONTEXT(ctx);
-   
-   swsetup->NewState |= new_state;
-
-   if (new_state & _SWSETUP_NEW_RENDERINDEX) {
-      swsetup->Triangle = _swsetup_validate_triangle;
-      swsetup->Line = _swsetup_validate_line;
-      swsetup->Points = _swsetup_validate_points;
-      swsetup->Quad = _swsetup_validate_quad;
-   }
-
-   if (new_state & _SWSETUP_NEW_VERTS) {
-      swsetup->BuildProjVerts = _swsetup_validate_buildprojverts;
-   }
-}
-
-
-
 /* Dispatch from these fixed entrypoints to the state-dependent
- * functions:
+ * functions.  
+ *
+ * The design of swsetup suggests that we could really program
+ * ctx->Driver.TriangleFunc directly from _swsetup_RenderStart, and
+ * avoid this second level of indirection.  However, this is more
+ * convient for fallback cases in hardware rasterization drivers.  
  */
 void 
 _swsetup_Quad( GLcontext *ctx, GLuint v0, GLuint v1, 
@@ -146,7 +74,6 @@ _swsetup_Line( GLcontext *ctx, GLuint v0, GLuint v1 )
    SWSETUP_CONTEXT(ctx)->Line( ctx, v0, v1 );
 }
 
-
 void 
 _swsetup_Points( GLcontext *ctx, GLuint first, GLuint last )
 {
@@ -160,12 +87,6 @@ _swsetup_BuildProjectedVertices( GLcontext *ctx, GLuint start, GLuint end,
    SWSETUP_CONTEXT(ctx)->BuildProjVerts( ctx, start, end, new_inputs );
 }
 
-void
-_swsetup_InvalidateState( GLcontext *ctx, GLuint new_state )
-{
-   SWSETUP_CONTEXT(ctx)->InvalidateState( ctx, new_state );
-}
-
 
 GLboolean
 _swsetup_CreateContext( GLcontext *ctx )
@@ -185,13 +106,6 @@ _swsetup_CreateContext( GLcontext *ctx )
    ctx->swsetup_context = swsetup;
 
    swsetup->NewState = ~0;
-   swsetup->InvalidateState = _swsetup_invalidate_state;
-   swsetup->Quad = _swsetup_validate_quad;
-   swsetup->Triangle = _swsetup_validate_triangle;
-   swsetup->Line = _swsetup_validate_line;
-   swsetup->Points = _swsetup_validate_points;
-   swsetup->BuildProjVerts = _swsetup_validate_buildprojverts;
-   
    _swsetup_vb_init( ctx );
    _swsetup_trifuncs_init( ctx );
 
@@ -210,10 +124,38 @@ _swsetup_DestroyContext( GLcontext *ctx )
    }
 }
 
+void
+_swsetup_RenderPrimitive( GLcontext *ctx, GLenum mode )
+{
+   SWSETUP_CONTEXT(ctx)->render_prim = mode;
+}
+
+void
+_swsetup_RenderStart( GLcontext *ctx )
+{ 
+   SScontext *swsetup = SWSETUP_CONTEXT(ctx);   
+   GLuint new_state = swsetup->NewState;
+
+   if (new_state & _SWSETUP_NEW_RENDERINDEX) {
+      _swsetup_choose_trifuncs( ctx );
+   }
+
+   if (new_state & _SWSETUP_NEW_VERTS) {
+      _swsetup_choose_rastersetup_func( ctx );
+   }
+
+   swsetup->NewState = 0;
+}
+
+void
+_swsetup_RenderFinish( GLcontext *ctx )
+{
+   _swrast_flush( ctx );
+}
 
 void
-_swsetup_RenderPrimNoop( GLcontext *ctx, GLenum mode )
+_swsetup_InvalidateState( GLcontext *ctx, GLuint new_state )
 {
-   (void) ctx;
-   (void) mode;
+   SWSETUP_CONTEXT(ctx)->NewState |= new_state;
 }
+
diff --git a/src/mesa/swrast_setup/ss_context.h b/src/mesa/swrast_setup/ss_context.h
index 601ae9eb34c..957a8fc3fc5 100644
--- a/src/mesa/swrast_setup/ss_context.h
+++ b/src/mesa/swrast_setup/ss_context.h
@@ -54,6 +54,7 @@ typedef struct {
    void (*Points)( GLcontext *ctx, GLuint first, GLuint last );
 
    SWvertex *verts;
+   GLenum render_prim;
 
 } SScontext;
 
diff --git a/src/mesa/swrast_setup/ss_triangle.c b/src/mesa/swrast_setup/ss_triangle.c
index 73a19ad38af..337a45acc53 100644
--- a/src/mesa/swrast_setup/ss_triangle.c
+++ b/src/mesa/swrast_setup/ss_triangle.c
@@ -26,6 +26,7 @@
  */
 
 #include "glheader.h"
+#include "colormac.h"
 #include "macros.h"
 #include "mtypes.h"
 
@@ -44,6 +45,100 @@ static triangle_func tri_tab[SS_MAX_TRIFUNC];
 static quad_func     quad_tab[SS_MAX_TRIFUNC];
 
 
+static void _swsetup_render_line_tri( GLcontext *ctx, 
+				      GLuint e0, GLuint e1, GLuint e2 )
+{
+   SScontext *swsetup = SWSETUP_CONTEXT(ctx);   
+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+   GLubyte *ef = VB->EdgeFlag;
+   SWvertex *verts = swsetup->verts;
+   SWvertex *v0 = &verts[e0];
+   SWvertex *v1 = &verts[e1];
+   SWvertex *v2 = &verts[e2];
+   GLchan c[2][4];
+   GLchan s[2][4];
+   GLuint i[2];
+
+   if (ctx->_TriangleCaps & DD_FLATSHADE) {
+      COPY_CHAN4(c[0], v0->color);
+      COPY_CHAN4(c[1], v1->color);
+      COPY_CHAN4(s[0], v0->specular);
+      COPY_CHAN4(s[1], v1->specular);
+      i[0] = v0->index;
+      i[1] = v1->index;
+
+      COPY_CHAN4(v0->color, v2->color);
+      COPY_CHAN4(v1->color, v2->color);
+      COPY_CHAN4(v0->specular, v2->specular);
+      COPY_CHAN4(v1->specular, v2->specular);
+      v0->index = v2->index;
+      v1->index = v2->index;
+   }
+
+   if (swsetup->render_prim == GL_POLYGON) {
+      if (ef[e2]) _swrast_Line( ctx, v2, v0 ); 
+      if (ef[e0]) _swrast_Line( ctx, v0, v1 ); 
+      if (ef[e1]) _swrast_Line( ctx, v1, v2 ); 
+   } else {
+      if (ef[e0]) _swrast_Line( ctx, v0, v1 ); 
+      if (ef[e1]) _swrast_Line( ctx, v1, v2 ); 
+      if (ef[e2]) _swrast_Line( ctx, v2, v0 ); 
+   }
+
+   if (ctx->_TriangleCaps & DD_FLATSHADE) {
+      COPY_CHAN4(v0->color, c[0]);
+      COPY_CHAN4(v1->color, c[1]);
+      COPY_CHAN4(v0->specular, s[0]);
+      COPY_CHAN4(v1->specular, s[1]);
+      v0->index = i[0];
+      v1->index = i[1];
+   }
+}
+
+static void _swsetup_render_point_tri( GLcontext *ctx, 
+				       GLuint e0, GLuint e1, GLuint e2 )
+{
+   SScontext *swsetup = SWSETUP_CONTEXT(ctx);   
+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+   GLubyte *ef = VB->EdgeFlag;
+   SWvertex *verts = swsetup->verts;
+   SWvertex *v0 = &verts[e0];
+   SWvertex *v1 = &verts[e1];
+   SWvertex *v2 = &verts[e2];
+   GLchan c[2][4];
+   GLchan s[2][4];
+   GLuint i[2];
+
+   if (ctx->_TriangleCaps & DD_FLATSHADE) {
+      COPY_CHAN4(c[0], v0->color);
+      COPY_CHAN4(c[1], v1->color);
+      COPY_CHAN4(s[0], v0->specular);
+      COPY_CHAN4(s[1], v1->specular);
+      i[0] = v0->index;
+      i[1] = v1->index;
+
+      COPY_CHAN4(v0->color, v2->color);
+      COPY_CHAN4(v1->color, v2->color);
+      COPY_CHAN4(v0->specular, v2->specular);
+      COPY_CHAN4(v1->specular, v2->specular);
+      v0->index = v2->index;
+      v1->index = v2->index;
+   }
+
+   if (ef[e0]) _swrast_Point( ctx, v0 ); 
+   if (ef[e1]) _swrast_Point( ctx, v1 ); 
+   if (ef[e2]) _swrast_Point( ctx, v2 ); 
+
+   if (ctx->_TriangleCaps & DD_FLATSHADE) {
+      COPY_CHAN4(v0->color, c[0]);
+      COPY_CHAN4(v1->color, c[1]);
+      COPY_CHAN4(v0->specular, s[0]);
+      COPY_CHAN4(v1->specular, s[1]);
+      v0->index = i[0];
+      v1->index = i[1];
+   }
+}
+
 #define SS_COLOR(a,b) COPY_4UBV(a,b)
 #define SS_SPEC(a,b) COPY_4UBV(a,b)
 #define SS_IND(a,b) (a = b)
diff --git a/src/mesa/swrast_setup/ss_tritmp.h b/src/mesa/swrast_setup/ss_tritmp.h
index 936774aba4e..cc0c511c35c 100644
--- a/src/mesa/swrast_setup/ss_tritmp.h
+++ b/src/mesa/swrast_setup/ss_tritmp.h
@@ -99,25 +99,19 @@ static void TAG(triangle)(GLcontext *ctx, GLuint e0, GLuint e1, GLuint e2 )
    }
 
    if (mode == GL_POINT) {
-      GLubyte *ef = VB->EdgeFlag;
       if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetPoint) {
 	 v[0]->win[2] += offset;
 	 v[1]->win[2] += offset;
 	 v[2]->win[2] += offset;
       }
-      if (ef[e0]) _swrast_Point( ctx, v[0] ); 
-      if (ef[e1]) _swrast_Point( ctx, v[1] ); 
-      if (ef[e2]) _swrast_Point( ctx, v[2] ); 
+      _swsetup_render_point_tri( ctx, e0, e1, e2 );
    } else if (mode == GL_LINE) {
-      GLubyte *ef = VB->EdgeFlag;
       if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetLine) {
 	 v[0]->win[2] += offset;
 	 v[1]->win[2] += offset;
 	 v[2]->win[2] += offset;
       }
-      if (ef[e0]) _swrast_Line( ctx, v[0], v[1] ); 
-      if (ef[e1]) _swrast_Line( ctx, v[1], v[2] ); 
-      if (ef[e2]) _swrast_Line( ctx, v[2], v[0] ); 
+      _swsetup_render_line_tri( ctx, e0, e1, e2 );
    } else {
       if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetFill) {
 	 v[0]->win[2] += offset;
diff --git a/src/mesa/swrast_setup/swrast_setup.h b/src/mesa/swrast_setup/swrast_setup.h
index 70b1113c909..f3607c75e9f 100644
--- a/src/mesa/swrast_setup/swrast_setup.h
+++ b/src/mesa/swrast_setup/swrast_setup.h
@@ -25,7 +25,9 @@
  *    Keith Whitwell <[email protected]>
  */
 
-/* Public interface to the swrast_setup module.
+/* Public interface to the swrast_setup module.  This module provides
+ * an implementation of the driver interface to t_vb_render.c, and uses
+ * the software rasterizer (swrast) to perform actual rasterization.
  */
 
 #ifndef SWRAST_SETUP_H
@@ -59,6 +61,12 @@ extern void
 _swsetup_Points( GLcontext *ctx, GLuint first, GLuint last );
 
 extern void
-_swsetup_RenderPrimNoop( GLcontext *ctx, GLenum mode );
+_swsetup_RenderPrimitive( GLcontext *ctx, GLenum mode );
+
+extern void
+_swsetup_RenderStart( GLcontext *ctx );
+
+extern void
+_swsetup_RenderFinish( GLcontext *ctx );
 
 #endif