draw: implement support for multiple viewports
[mesa.git] / src / gallium / auxiliary / draw / draw_pipe_validate.c
index 23fa4cf6060cef4ffe0710795c0c9194b2cc218c..4b0ed148129f2c3a01c2a1bf4fd918c9db57b4a2 100644 (file)
@@ -29,6 +29,7 @@
  */
 
 #include "util/u_memory.h"
+#include "util/u_math.h"
 #include "pipe/p_defines.h"
 #include "draw_private.h"
 #include "draw_pipe.h"
@@ -86,7 +87,7 @@ draw_need_pipeline(const struct draw_context *draw,
          return TRUE;
 
       /* wide lines */
-      if (rasterizer->line_width > draw->pipeline.wide_line_threshold)
+      if (roundf(rasterizer->line_width) > draw->pipeline.wide_line_threshold)
          return TRUE;
 
       /* AA lines */
@@ -100,6 +101,11 @@ draw_need_pipeline(const struct draw_context *draw,
       if (rasterizer->point_size > draw->pipeline.wide_point_threshold)
          return TRUE;
 
+      /* sprite points */
+      if (rasterizer->point_quad_rasterization
+          && draw->pipeline.wide_point_sprites)
+         return TRUE;
+
       /* AA points */
       if (rasterizer->point_smooth && draw->pipeline.aapoint)
          return TRUE;
@@ -117,12 +123,14 @@ draw_need_pipeline(const struct draw_context *draw,
          return TRUE;
 
       /* unfilled polygons */
-      if (rasterizer->fill_cw != PIPE_POLYGON_MODE_FILL ||
-          rasterizer->fill_ccw != PIPE_POLYGON_MODE_FILL)
+      if (rasterizer->fill_front != PIPE_POLYGON_MODE_FILL ||
+          rasterizer->fill_back != PIPE_POLYGON_MODE_FILL)
          return TRUE;
       
       /* polygon offset */
-      if (rasterizer->offset_cw || rasterizer->offset_ccw)
+      if (rasterizer->offset_point ||
+          rasterizer->offset_line ||
+          rasterizer->offset_tri)
          return TRUE;
 
       /* two-side lighting */
@@ -162,16 +170,18 @@ static struct draw_stage *validate_pipeline( struct draw_stage *stage )
    stage->next = next;
 
    /* drawing wide lines? */
-   wide_lines = (rast->line_width > draw->pipeline.wide_line_threshold
+   wide_lines = (roundf(rast->line_width) > draw->pipeline.wide_line_threshold
                  && !rast->line_smooth);
 
-   /* drawing large points? */
+   /* drawing large/sprite points (but not AA points)? */
    if (rast->sprite_coord_enable && draw->pipeline.point_sprite)
       wide_points = TRUE;
    else if (rast->point_smooth && draw->pipeline.aapoint)
       wide_points = FALSE;
    else if (rast->point_size > draw->pipeline.wide_point_threshold)
       wide_points = TRUE;
+   else if (rast->point_quad_rasterization && draw->pipeline.wide_point_sprites)
+      wide_points = TRUE;
    else
       wide_points = FALSE;
 
@@ -185,6 +195,7 @@ static struct draw_stage *validate_pipeline( struct draw_stage *stage )
    if (rast->line_smooth && draw->pipeline.aaline) {
       draw->pipeline.aaline->next = next;
       next = draw->pipeline.aaline;
+      precalc_flat = TRUE;
    }
 
    if (rast->point_smooth && draw->pipeline.aapoint) {
@@ -198,7 +209,7 @@ static struct draw_stage *validate_pipeline( struct draw_stage *stage )
       precalc_flat = TRUE;
    }
 
-   if (wide_points || rast->sprite_coord_enable) {
+   if (wide_points) {
       draw->pipeline.wide_point->next = next;
       next = draw->pipeline.wide_point;
    }
@@ -215,8 +226,8 @@ static struct draw_stage *validate_pipeline( struct draw_stage *stage )
       next = draw->pipeline.pstipple;
    }
 
-   if (rast->fill_cw != PIPE_POLYGON_MODE_FILL ||
-       rast->fill_ccw != PIPE_POLYGON_MODE_FILL) {
+   if (rast->fill_front != PIPE_POLYGON_MODE_FILL ||
+       rast->fill_back != PIPE_POLYGON_MODE_FILL) {
       draw->pipeline.unfilled->next = next;
       next = draw->pipeline.unfilled;
       precalc_flat = TRUE;             /* only needed for triangles really */
@@ -228,8 +239,9 @@ static struct draw_stage *validate_pipeline( struct draw_stage *stage )
       next = draw->pipeline.flatshade;
    }
         
-   if (rast->offset_cw ||
-       rast->offset_ccw) {
+   if (rast->offset_point ||
+       rast->offset_line ||
+       rast->offset_tri) {
       draw->pipeline.offset->next = next;
       next = draw->pipeline.offset;
       need_det = TRUE;
@@ -248,14 +260,14 @@ static struct draw_stage *validate_pipeline( struct draw_stage *stage )
     * to less work emitting vertices, smaller vertex buffers, etc.
     * It's difficult to say whether this will be true in general.
     */
-   if (need_det || rast->cull_mode) {
+   if (need_det || rast->cull_face != PIPE_FACE_NONE) {
       draw->pipeline.cull->next = next;
       next = draw->pipeline.cull;
    }
 
    /* Clip stage
     */
-   if (!draw->bypass_clipping)
+   if (draw->clip_xy || draw->clip_z || draw->clip_user)
    {
       draw->pipeline.clip->next = next;
       next = draw->pipeline.clip;