simplify drawarrays paths

diff --git a/src/mesa/tnl/t_array_api.c b/src/mesa/tnl/t_array_api.c
index 3cbadb1af11b24e92f656fa95d37840664143290..fff970ae742cb5d5d216c6cc75abd375f1b45030 100644 (file)
--- a/src/mesa/tnl/t_array_api.c
+++ b/src/mesa/tnl/t_array_api.c
@@ -1,4 +1,4 @@
-/* $Id: t_array_api.c,v 1.21 2001/11/29 15:15:20 keithw Exp $ */
+/* $Id: t_array_api.c,v 1.22 2001/12/03 17:41:58 keithw Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -121,42 +121,26 @@ _tnl_DrawArrays(GLenum mode, GLint start, GLsizei count)
    if (ctx->CompileFlag) {
       fallback_drawarrays( ctx, mode, start, start + count );
    }    
-   else if (count < (GLint) ctx->Const.MaxArrayLockSize) {
-
+   else if (ctx->Array.LockCount && 
+           count < (GLint) ctx->Const.MaxArrayLockSize) {
+      
       /* Small primitives which can fit in a single vertex buffer:
        */
       FLUSH_CURRENT( ctx, 0 );
 
-      if (ctx->Array.LockCount)
-      {
-        if (start < (GLint) ctx->Array.LockFirst)
-            start = ctx->Array.LockFirst;
-        if (start + count > (GLint) ctx->Array.LockCount)
-            count = ctx->Array.LockCount - start;
-
-        /* Locked drawarrays.  Reuse any previously transformed data.
-         */
-        _tnl_vb_bind_arrays( ctx, ctx->Array.LockFirst, ctx->Array.LockCount );
-        VB->FirstPrimitive = start;
-        VB->Primitive[start] = mode | PRIM_BEGIN | PRIM_END | PRIM_LAST;
-        VB->PrimitiveLength[start] = count;
-        tnl->Driver.RunPipeline( ctx );
-      } else {
-        /* The arrays are small enough to fit in a single VB; just bind
-         * them and go.  Any untransformed data will be copied on
-         * clipping.
-         *
-         * Invalidate any cached data dependent on these arrays.
-         */
-        _tnl_vb_bind_arrays( ctx, start, start + count );
-        VB->FirstPrimitive = 0;
-        VB->Primitive[0] = mode | PRIM_BEGIN | PRIM_END | PRIM_LAST;
-        VB->PrimitiveLength[0] = count;
-        tnl->pipeline.run_input_changes |= ctx->Array._Enabled;
-        tnl->Driver.RunPipeline( ctx );
-        tnl->pipeline.run_input_changes |= ctx->Array._Enabled;
-      }
-   }
+      if (start < (GLint) ctx->Array.LockFirst)
+        start = ctx->Array.LockFirst;
+      if (start + count > (GLint) ctx->Array.LockCount)
+        count = ctx->Array.LockCount - start;
+      
+      /* Locked drawarrays.  Reuse any previously transformed data.
+       */
+      _tnl_vb_bind_arrays( ctx, ctx->Array.LockFirst, ctx->Array.LockCount );
+      VB->FirstPrimitive = start;
+      VB->Primitive[start] = mode | PRIM_BEGIN | PRIM_END | PRIM_LAST;
+      VB->PrimitiveLength[start] = count;
+      tnl->Driver.RunPipeline( ctx );
+   } 
    else {
       int bufsz = 256;         /* Use a small buffer for cache goodness */
       int j, nr;
@@ -204,10 +188,19 @@ _tnl_DrawArrays(GLenum mode, GLint start, GLsizei count)
       case GL_POLYGON:
       default:
         /* Primitives requiring a copied vertex (fan-like primitives)
-         * must use the slow path:
+         * must use the slow path if they cannot fit in a single
+         * vertex buffer.  
          */
-        fallback_drawarrays( ctx, mode, start, start + count );
-        return;
+        if (count < (GLint) ctx->Const.MaxArrayLockSize) {
+           bufsz = ctx->Const.MaxArrayLockSize;
+           minimum = 0;
+           modulo = 1;
+           skip = 0;
+        }
+        else {
+           fallback_drawarrays( ctx, mode, start, start + count );
+           return;
+        }
       }
 
       FLUSH_CURRENT( ctx, 0 );