Commit Mesa 6.4 sources and packaging

1 files changed, 314 insertions, 0 deletions

diff --git a/src/mesa/swrast_setup/ss_triangle.c b/src/mesa/swrast_setup/ss_triangle.c
new file mode 100644
index 00000000000..d37bdf71cbc
--- /dev/null
+++ b/src/mesa/swrast_setup/ss_triangle.c
@@ -0,0 +1,314 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  6.1
+ *
+ * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <[email protected]>
+ */
+
+#include "glheader.h"
+#include "colormac.h"
+#include "macros.h"
+#include "mtypes.h"
+
+#include "tnl/t_context.h"
+
+#include "ss_triangle.h"
+#include "ss_context.h"
+
+#define SS_RGBA_BIT         0x1
+#define SS_OFFSET_BIT	    0x2
+#define SS_TWOSIDE_BIT	    0x4
+#define SS_UNFILLED_BIT	    0x8
+#define SS_MAX_TRIFUNC      0x10
+
+static tnl_triangle_func tri_tab[SS_MAX_TRIFUNC];
+static tnl_quad_func     quad_tab[SS_MAX_TRIFUNC];
+
+
+static void _swsetup_render_line_tri( GLcontext *ctx,
+				      GLuint e0, GLuint e1, GLuint e2,
+                                      GLuint facing )
+{
+   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];
+   GLfloat i[2];
+
+   /* cull testing */
+   if (ctx->Polygon.CullFlag) {
+      if (facing == 1 && ctx->Polygon.CullFaceMode != GL_FRONT)
+         return;
+      if (facing == 0 && ctx->Polygon.CullFaceMode != GL_BACK)
+         return;
+   }
+
+   if (ctx->Light.ShadeModel == GL_FLAT) {
+      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->Light.ShadeModel == GL_FLAT) {
+      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,
+                                       GLuint facing )
+{
+   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];
+   GLfloat i[2];
+
+   /* cull testing */
+   if (ctx->Polygon.CullFlag) {
+      if (facing == 1 && ctx->Polygon.CullFaceMode != GL_FRONT)
+         return;
+      if (facing == 0 && ctx->Polygon.CullFaceMode != GL_BACK)
+         return;
+   }
+
+   if (ctx->Light.ShadeModel == GL_FLAT) {
+      /* save colors/indexes for v0, v1 vertices */
+      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 v2 color/indexes to v0, v1 indexes */
+      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->Light.ShadeModel == GL_FLAT) {
+      /* restore v0, v1 colores/indexes */
+      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];
+   }
+   _swrast_flush(ctx);
+}
+
+#define SS_COLOR(a,b) UNCLAMPED_FLOAT_TO_RGBA_CHAN(a,b)
+#define SS_SPEC(a,b) UNCLAMPED_FLOAT_TO_RGB_CHAN(a,b)
+#define SS_IND(a,b) (a = b)
+
+#define IND (0)
+#define TAG(x) x
+#include "ss_tritmp.h"
+
+#define IND (SS_OFFSET_BIT)
+#define TAG(x) x##_offset
+#include "ss_tritmp.h"
+
+#define IND (SS_TWOSIDE_BIT)
+#define TAG(x) x##_twoside
+#include "ss_tritmp.h"
+
+#define IND (SS_OFFSET_BIT|SS_TWOSIDE_BIT)
+#define TAG(x) x##_offset_twoside
+#include "ss_tritmp.h"
+
+#define IND (SS_UNFILLED_BIT)
+#define TAG(x) x##_unfilled
+#include "ss_tritmp.h"
+
+#define IND (SS_OFFSET_BIT|SS_UNFILLED_BIT)
+#define TAG(x) x##_offset_unfilled
+#include "ss_tritmp.h"
+
+#define IND (SS_TWOSIDE_BIT|SS_UNFILLED_BIT)
+#define TAG(x) x##_twoside_unfilled
+#include "ss_tritmp.h"
+
+#define IND (SS_OFFSET_BIT|SS_TWOSIDE_BIT|SS_UNFILLED_BIT)
+#define TAG(x) x##_offset_twoside_unfilled
+#include "ss_tritmp.h"
+
+#define IND (0|SS_RGBA_BIT)
+#define TAG(x) x##_rgba
+#include "ss_tritmp.h"
+
+#define IND (SS_OFFSET_BIT|SS_RGBA_BIT)
+#define TAG(x) x##_offset_rgba
+#include "ss_tritmp.h"
+
+#define IND (SS_TWOSIDE_BIT|SS_RGBA_BIT)
+#define TAG(x) x##_twoside_rgba
+#include "ss_tritmp.h"
+
+#define IND (SS_OFFSET_BIT|SS_TWOSIDE_BIT|SS_RGBA_BIT)
+#define TAG(x) x##_offset_twoside_rgba
+#include "ss_tritmp.h"
+
+#define IND (SS_UNFILLED_BIT|SS_RGBA_BIT)
+#define TAG(x) x##_unfilled_rgba
+#include "ss_tritmp.h"
+
+#define IND (SS_OFFSET_BIT|SS_UNFILLED_BIT|SS_RGBA_BIT)
+#define TAG(x) x##_offset_unfilled_rgba
+#include "ss_tritmp.h"
+
+#define IND (SS_TWOSIDE_BIT|SS_UNFILLED_BIT|SS_RGBA_BIT)
+#define TAG(x) x##_twoside_unfilled_rgba
+#include "ss_tritmp.h"
+
+#define IND (SS_OFFSET_BIT|SS_TWOSIDE_BIT|SS_UNFILLED_BIT|SS_RGBA_BIT)
+#define TAG(x) x##_offset_twoside_unfilled_rgba
+#include "ss_tritmp.h"
+
+
+void _swsetup_trifuncs_init( GLcontext *ctx )
+{
+   (void) ctx;
+
+   init();
+   init_offset();
+   init_twoside();
+   init_offset_twoside();
+   init_unfilled();
+   init_offset_unfilled();
+   init_twoside_unfilled();
+   init_offset_twoside_unfilled();
+
+   init_rgba();
+   init_offset_rgba();
+   init_twoside_rgba();
+   init_offset_twoside_rgba();
+   init_unfilled_rgba();
+   init_offset_unfilled_rgba();
+   init_twoside_unfilled_rgba();
+   init_offset_twoside_unfilled_rgba();
+}
+
+
+static void swsetup_points( GLcontext *ctx, GLuint first, GLuint last )
+{
+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+   SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts;
+   GLuint i;
+
+   if (VB->Elts) {
+      for (i = first; i < last; i++)
+	 if (VB->ClipMask[VB->Elts[i]] == 0)
+	    _swrast_Point( ctx, &verts[VB->Elts[i]] );
+   }
+   else {
+      for (i = first; i < last; i++)
+	 if (VB->ClipMask[i] == 0)
+	    _swrast_Point( ctx, &verts[i] );
+   }
+}
+
+static void swsetup_line( GLcontext *ctx, GLuint v0, GLuint v1 )
+{
+   SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts;
+   _swrast_Line( ctx, &verts[v0], &verts[v1] );
+}
+
+
+
+void _swsetup_choose_trifuncs( GLcontext *ctx )
+{
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   GLuint ind = 0;
+
+   if (ctx->Polygon.OffsetPoint ||
+       ctx->Polygon.OffsetLine ||
+       ctx->Polygon.OffsetFill)
+      ind |= SS_OFFSET_BIT;
+
+   if ((ctx->Light.Enabled && ctx->Light.Model.TwoSide) ||
+       (ctx->VertexProgram._Enabled && ctx->VertexProgram.TwoSideEnabled))
+      ind |= SS_TWOSIDE_BIT;
+
+   /* We piggyback the two-sided stencil front/back determination on the
+    * unfilled triangle path.
+    */
+   if (ctx->Polygon.FrontMode != GL_FILL ||
+       ctx->Polygon.BackMode != GL_FILL ||
+       (ctx->Stencil.Enabled && ctx->Stencil.TestTwoSide))
+      ind |= SS_UNFILLED_BIT;
+
+   if (ctx->Visual.rgbMode)
+      ind |= SS_RGBA_BIT;
+
+   tnl->Driver.Render.Triangle = tri_tab[ind];
+   tnl->Driver.Render.Quad = quad_tab[ind];
+   tnl->Driver.Render.Line = swsetup_line;
+   tnl->Driver.Render.Points = swsetup_points;
+
+   ctx->_Facing = 0;
+}