From fe7aa08ad982ebca9d867905eccb5315fa4ed23a Mon Sep 17 00:00:00 2001
From: Aapo Tahkola <aet@rasterburn.org>
Date: Wed, 9 Feb 2005 05:53:34 +0000
Subject: [PATCH] Enabled user-defined point size, enabled zbiases for rest of
 the primitives and fixed bad vertex number checks triggered by nurb.

---
 src/mesa/drivers/dri/r300/r300_render.c | 14 ++++++-----
 src/mesa/drivers/dri/r300/r300_state.c  | 31 ++++++++++++++++++++-----
 2 files changed, 33 insertions(+), 12 deletions(-)

diff --git a/src/mesa/drivers/dri/r300/r300_render.c b/src/mesa/drivers/dri/r300/r300_render.c
index 1b4f74c4e8b..56c8a5af4df 100644
--- a/src/mesa/drivers/dri/r300/r300_render.c
+++ b/src/mesa/drivers/dri/r300/r300_render.c
@@ -191,11 +191,13 @@ static int r300_get_num_verts(r300ContextPtr rmesa,
       		break;		
 	case GL_LINE_STRIP:
    		name="LS";
-		verts_off = num_verts % 2;
+		if(num_verts < 2)
+			verts_off = num_verts;
       		break;
 	case GL_LINE_LOOP:
    		name="LL";
-		verts_off = num_verts % 2;
+		if(num_verts < 2)
+			verts_off = num_verts;
       		break;
     	case GL_TRIANGLES:
    		name="T";
@@ -685,10 +687,10 @@ static GLboolean r300_run_render(GLcontext *ctx,
 	if (RADEON_DEBUG == DEBUG_PRIMS)
 		fprintf(stderr, "%s\n", __FUNCTION__);
 	
-
+	
    #if 1
 	
-   	#if 0
+   	#if 1
         return r300_run_immediate_render(ctx, stage);
 	#else 
         return r300_run_vb_render(ctx, stage);
@@ -779,8 +781,8 @@ static void r300_check_render(GLcontext *ctx, struct tnl_pipeline_stage *stage)
 	FALLBACK_IF(ctx->Point.SmoothFlag); // GL_POINT_SMOOTH
 	if (ctx->Extensions.NV_point_sprite || ctx->Extensions.ARB_point_sprite)
 		FALLBACK_IF(ctx->Point.PointSprite); // GL_POINT_SPRITE_NV
-	FALLBACK_IF(ctx->Polygon.OffsetPoint); // GL_POLYGON_OFFSET_POINT
-	FALLBACK_IF(ctx->Polygon.OffsetLine); // GL_POLYGON_OFFSET_LINE
+	//FALLBACK_IF(ctx->Polygon.OffsetPoint); // GL_POLYGON_OFFSET_POINT
+	//FALLBACK_IF(ctx->Polygon.OffsetLine); // GL_POLYGON_OFFSET_LINE
 	//FALLBACK_IF(ctx->Polygon.OffsetFill); // GL_POLYGON_OFFSET_FILL
 	//if(ctx->Polygon.OffsetFill)WARN_ONCE("Polygon.OffsetFill not implemented, ignoring\n");
 	FALLBACK_IF(ctx->Polygon.SmoothFlag); // GL_POLYGON_SMOOTH
diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c
index 0abe242958d..a1ce6a2e98f 100644
--- a/src/mesa/drivers/dri/r300/r300_state.c
+++ b/src/mesa/drivers/dri/r300/r300_state.c
@@ -502,15 +502,23 @@ static void r300Enable(GLcontext* ctx, GLenum cap, GLboolean state)
 	case GL_POLYGON_OFFSET_POINT:
 	case GL_POLYGON_OFFSET_LINE:
 		WARN_ONCE("Don't know how to enable polygon offset point/line. Help me !\n");
+		
+		/* Something is apparently blocking these from working */
+		R300_STATECHANGE(r300, unk42B4);
+		if(state){
+			r300->hw.unk42B4.cmd[1] |= ~(3<<0);
+		} else {
+			r300->hw.unk42B4.cmd[1] &= (3<<0);
+		}
 		break;
 		
 	case GL_POLYGON_OFFSET_FILL:
 		R300_STATECHANGE(r300, unk42B4);
 		if(state){
-			r300->hw.unk42B4.cmd[1] |= 3;
-			} else {
-			r300->hw.unk42B4.cmd[1] &= ~3;
-			}
+			r300->hw.unk42B4.cmd[1] |= (3<<0);
+		} else {
+			r300->hw.unk42B4.cmd[1] &= ~(3<<0);
+		}
 		break;
 		
 	case GL_VERTEX_PROGRAM_ARB:
@@ -632,10 +640,18 @@ static void r300ColorMask(GLcontext* ctx,
 static void r300PointSize(GLcontext * ctx, GLfloat size)
 {
 	r300ContextPtr r300 = R300_CONTEXT(ctx);
-
+	
+	/* TODO: Validate point size */
+	R300_STATECHANGE(r300, ps);
+	r300->hw.ps.cmd[R300_PS_POINTSIZE] =
+		((int)(size * 6) << R300_POINTSIZE_X_SHIFT) |
+		((int)(size * 6) << R300_POINTSIZE_Y_SHIFT);
+	
+#if 0 /* r200 reg? */
 	/* This might need fixing later */
 	R300_STATECHANGE(r300, vps);
 	r300->hw.vps.cmd[R300_VPS_POINTSIZE] = r300PackFloat32(1.0);
+#endif	
 }
 /* =============================================================
  * Stencil
@@ -1767,9 +1783,12 @@ void r300ResetHwState(r300ContextPtr r300)
 
 	r300->hw.unk4214.cmd[1] = 0x00050005;
 
+	r300PointSize(ctx, ctx->Point.Size);
+#if 0	
 	r300->hw.ps.cmd[R300_PS_POINTSIZE] = (6 << R300_POINTSIZE_X_SHIFT) |
 					     (6 << R300_POINTSIZE_Y_SHIFT);
-
+#endif	
+			
 	r300->hw.unk4230.cmd[1] = 0x01800000;
 	r300->hw.unk4230.cmd[2] = 0x00020006;
 	r300->hw.unk4230.cmd[3] = r300PackFloat32(1.0 / 192.0);
-- 
2.30.2