gallium: prototype draw_linestipple.c replaced by draw_stipple.c

1 files changed, 0 insertions, 272 deletions

diff --git a/src/mesa/pipe/draw/draw_linestipple.c b/src/mesa/pipe/draw/draw_linestipple.c
deleted file mode 100644
index d7fe1071f0..0000000000
--- a/src/mesa/pipe/draw/draw_linestipple.c
+++ /dev/null
@@ -1,272 +0,0 @@
-/**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * 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, sub license, 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 (including the
- * next paragraph) 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 NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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 <keith@tungstengraphics.com>
- */
-
-/* Implement line stipple by cutting lines up into smaller lines.
- * There are hundreds of ways to implement line stipple, this is one
- * choice that should work in all situations, requires no state
- * manipulations, but with a penalty in terms of large amounts of
- * generated geometry.
- */
-
-#include "imports.h"
-#include "macros.h"
-
-#define CLIP_PRIVATE
-#include "clip/clip_context.h"
-
-#define CLIP_PIPE_PRIVATE
-#include "clip/clip_pipe.h"
-
-
-
-struct stipple_stage {
-   struct clip_pipe_stage stage;
-
-   GLuint hw_data_offset;
-
-   GLfloat counter;
-   GLuint pattern;
-   GLuint factor;
-};
-
-
-
-
-static INLINE struct stipple_stage *stipple_stage( struct clip_pipe_stage *stage )
-{
-   return (struct stipple_stage *)stage;
-}
-
-
-
-
-static void interp_attr( const struct vf_attr *a,
-			 GLubyte *vdst,
-			 GLfloat t,
-			 const GLubyte *vin,
-			 const GLubyte *vout )
-{
-   GLuint offset = a->vertoffset;
-   GLfloat fin[4], fout[4], fdst[4];
-   
-   a->extract( a, fin, vin + offset );
-   a->extract( a, fout, vout + offset );
-
-   fdst[0] = LINTERP( t, fout[0], fin[0] );
-   fdst[1] = LINTERP( t, fout[1], fin[1] );
-   fdst[2] = LINTERP( t, fout[2], fin[2] );
-   fdst[3] = LINTERP( t, fout[3], fin[3] );
-
-   a->insert[4-1]( a, vdst + offset, fdst );
-}
-
-
-
-
-/* Weird screen-space interpolation??  Otherwise do something special
- * with pos.w or fix vertices to always have clip coords available.
- */
-static void screen_interp( struct vertex_fetch *vf,
-			   struct vertex_header *dst,
-			   GLfloat t,
-			   const struct vertex_header *out, 
-			   const struct vertex_header *in )
-{
-   GLubyte *vdst = (GLubyte *)dst;
-   const GLubyte *vin  = (const GLubyte *)in;
-   const GLubyte *vout = (const GLubyte *)out;
-
-   const struct vf_attr *a = vf->attr;
-   const GLuint attr_count = vf->attr_count;
-   GLuint j;
-
-   /* Vertex header.
-    */
-   {
-      assert(a[0].attrib == VF_ATTRIB_VERTEX_HEADER);
-      dst->clipmask = 0;
-      dst->edgeflag = 0;
-      dst->pad = 0;
-      dst->index = 0xffff;
-   }
-
-   
-   /* Other attributes
-    */
-   for (j = 1; j < attr_count; j++) {
-      interp_attr(&a[j], vdst, t, vin, vout);
-   }
-}
-
-
-
-/* Clip a line against the viewport and user clip planes.
- */
-static void draw_line_segment( struct clip_pipe_stage *stage,
-			       struct prim_header *header,
-			       GLfloat t0,
-			       GLfloat t1 )
-{
-   struct vertex_fetch *vf = stage->pipe->draw->vb.vf;
-   struct vertex_header *v0 = header->v[0];
-   struct vertex_header *v1 = header->v[1];
-
-   struct prim_header newprim = *header;
-   header = &newprim;
-
-   _mesa_printf("%s %f %f\n", __FUNCTION__, t0, t1);
-
-   if (t0 > 0.0) {
-      screen_interp( vf, stage->tmp[0], t0, v0, v1 );
-      header->v[0] = stage->tmp[0];
-   }
-
-   if (t1 < 1.0) {
-      screen_interp( vf, stage->tmp[1], t1, v0, v1 );
-      header->v[1] = stage->tmp[1];
-   }
-
-   stage->next->line( stage->next, header );
-}
-
-
-
-/* XXX: don't really want to iterate like this.
- */
-static INLINE unsigned
-stipple_test(int counter, ushort pattern, int factor)
-{
-   int b = (counter / factor) & 0xf;
-   return (1 << b) & pattern;
-}
-
-
-
-/* XXX:  Need to have precalculated flatshading already.
- */
-static void stipple_line( struct clip_pipe_stage *stage,
-			  struct prim_header *header )
-{
-   struct stipple_stage *stipple = stipple_stage(stage);
-   GLuint hw_data_offset = stipple->hw_data_offset;
-   const GLfloat *pos0 = (GLfloat *)&(header->v[0]->data[hw_data_offset]);
-   const GLfloat *pos1 = (GLfloat *)&(header->v[1]->data[hw_data_offset]);
-   GLfloat start = 0;
-   int state = 0;
-
-   GLfloat x0 = (GLfloat)pos0[0];
-   GLfloat x1 = (GLfloat)pos1[0];
-   GLfloat y0 = (GLfloat)pos0[1];
-   GLfloat y1 = (GLfloat)pos1[1];
-
-   GLfloat dx = x0 > x1 ? x0 - x1 : x1 - x0;
-   GLfloat dy = y0 > y1 ? y0 - y1 : y1 - y0;
-
-   GLfloat length = MAX2(dx, dy);
-   GLint i;
-   
-   if (header->reset_line_stipple)   
-      stipple->counter = 0;
-
-   /* XXX: iterating like this is lame
-    */
-   for (i = 0; i < length; i++) {
-      int result = !!stipple_test( stipple->counter+i, stipple->pattern, stipple->factor );
-//      _mesa_printf("%d %f %d\n", i, length, result);
-      if (result != state) {
-	 if (state) {
-	    if (start != i)
-	       draw_line_segment( stage, header, start / length, i / length );
-	 }
-	 else {
-	    start = i;
-	 }
-	 state = result;	   
-      }
-   }
-
-   if (state && start < length)
-      draw_line_segment( stage, header, start / length, 1.0 );
-
-   stipple->counter += length;
-}
-
-
-
-static void stipple_begin( struct clip_pipe_stage *stage )
-{
-   struct stipple_stage *stipple = stipple_stage(stage);
-   struct clip_context *draw = stage->pipe->draw;
-
-   if (stage->pipe->draw->vb_state.clipped_prims)
-      stipple->hw_data_offset = 16;
-   else
-      stipple->hw_data_offset = 0;	
-
-   stipple->stage.tri = clip_passthrough_tri;
-   stipple->stage.point = clip_passthrough_point;
-
-   stipple->stage.line = stipple_line;
-   stipple->factor = draw->state.line_stipple_factor + 1;
-   stipple->pattern = draw->state.line_stipple_pattern;
-
-   stage->next->begin( stage->next );
-}
-
-
-static void stipple_end( struct clip_pipe_stage *stage )
-{
-   stage->next->end( stage->next );
-}
-
-
-static void stipple_destroy( struct clip_pipe_stage *stage )
-{
-   FREE( stage );
-}
-
-
-struct clip_pipe_stage *clip_pipe_stipple( struct clip_pipeline *pipe )
-{
-   struct stipple_stage *stipple = CALLOC_STRUCT(stipple_stage);
-
-   clip_pipe_alloc_tmps( &stipple->stage, 4 );
-
-   stipple->stage.pipe = pipe;
-   stipple->stage.next = NULL;
-   stipple->stage.begin = stipple_begin;
-   stipple->stage.point = clip_passthrough_point;
-   stipple->stage.line = stipple_line;
-   stipple->stage.tri = clip_passthrough_tri;
-   stipple->stage.end = stipple_end;
-   stipple->stage.destroy = stipple_destroy;
-
-   return &stipple->stage;
-}