xserver and mesa git update 28-12-2010

1 files changed, 272 insertions, 0 deletions

diff --git a/mesalib/src/mesa/state_tracker/st_atom_rasterizer.c b/mesalib/src/mesa/state_tracker/st_atom_rasterizer.c
new file mode 100644
index 000000000..4936385d2
--- /dev/null
+++ b/mesalib/src/mesa/state_tracker/st_atom_rasterizer.c
@@ -0,0 +1,272 @@
+/**************************************************************************

+ * 

+ * 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>

+  */

+ 

+#include "main/macros.h"

+#include "st_context.h"

+#include "st_atom.h"

+#include "pipe/p_context.h"

+#include "pipe/p_defines.h"

+#include "cso_cache/cso_context.h"

+

+

+static GLuint translate_fill( GLenum mode )

+{

+   switch (mode) {

+   case GL_POINT:

+      return PIPE_POLYGON_MODE_POINT;

+   case GL_LINE:

+      return PIPE_POLYGON_MODE_LINE;

+   case GL_FILL:

+      return PIPE_POLYGON_MODE_FILL;

+   default:

+      assert(0);

+      return 0;

+   }

+}

+

+

+

+static void update_raster_state( struct st_context *st )

+{

+   struct gl_context *ctx = st->ctx;

+   struct pipe_rasterizer_state *raster = &st->state.rasterizer;

+   const struct gl_vertex_program *vertProg = ctx->VertexProgram._Current;

+   const struct gl_fragment_program *fragProg = ctx->FragmentProgram._Current;

+   uint i;

+

+   memset(raster, 0, sizeof(*raster));

+

+   /* _NEW_POLYGON, _NEW_BUFFERS

+    */

+   {

+      raster->front_ccw = (ctx->Polygon.FrontFace == GL_CCW);

+

+      /* XXX

+       * I think the intention here is that user-created framebuffer objects

+       * use Y=0=TOP layout instead of OpenGL's normal Y=0=bottom layout.

+       * Flipping Y changes CW to CCW and vice-versa.

+       * But this is an implementation/driver-specific artifact - remove...

+       */

+      if (ctx->DrawBuffer && ctx->DrawBuffer->Name != 0)

+         raster->front_ccw ^= 1;

+   }

+

+   /* _NEW_LIGHT

+    */

+   if (ctx->Light.ShadeModel == GL_FLAT)

+      raster->flatshade = 1;

+

+   if (ctx->Light.ProvokingVertex == GL_FIRST_VERTEX_CONVENTION_EXT)

+      raster->flatshade_first = 1;

+

+   /* _NEW_LIGHT | _NEW_PROGRAM

+    *

+    * Back-face colors can come from traditional lighting (when

+    * GL_LIGHT_MODEL_TWO_SIDE is set) or from vertex programs/shaders (when

+    * GL_VERTEX_PROGRAM_TWO_SIDE is set).  Note the logic here.

+    */

+   if (ctx->VertexProgram._Current) {

+      if (ctx->VertexProgram._Enabled ||

+          (ctx->Shader.CurrentVertexProgram &&

+           ctx->Shader.CurrentVertexProgram->LinkStatus)) {

+         /* user-defined vertex program or shader */

+         raster->light_twoside = ctx->VertexProgram.TwoSideEnabled;

+      }

+      else {

+         /* TNL-generated program */

+         raster->light_twoside = ctx->Light.Enabled && ctx->Light.Model.TwoSide;

+      }

+   }

+   else if (ctx->Light.Enabled && ctx->Light.Model.TwoSide) {

+      raster->light_twoside = 1;

+   }

+

+   /* _NEW_POLYGON

+    */

+   if (ctx->Polygon.CullFlag) {

+      switch (ctx->Polygon.CullFaceMode) {

+      case GL_FRONT:

+	 raster->cull_face = PIPE_FACE_FRONT;

+         break;

+      case GL_BACK:

+	 raster->cull_face = PIPE_FACE_BACK;

+         break;

+      case GL_FRONT_AND_BACK:

+	 raster->cull_face = PIPE_FACE_FRONT_AND_BACK;

+         break;

+      }

+   }

+   else {

+      raster->cull_face = PIPE_FACE_NONE;

+   }

+

+   /* _NEW_POLYGON

+    */

+   {

+      raster->fill_front = translate_fill( ctx->Polygon.FrontMode );

+      raster->fill_back = translate_fill( ctx->Polygon.BackMode );

+

+      /* Simplify when culling is active:

+       */

+      if (raster->cull_face & PIPE_FACE_FRONT) {

+	 raster->fill_front = raster->fill_back;

+      }

+      

+      if (raster->cull_face & PIPE_FACE_BACK) {

+	 raster->fill_back = raster->fill_front;

+      }

+   }

+

+   /* _NEW_POLYGON 

+    */

+   if (ctx->Polygon.OffsetUnits != 0.0 ||

+       ctx->Polygon.OffsetFactor != 0.0) {

+      raster->offset_point = ctx->Polygon.OffsetPoint;

+      raster->offset_line = ctx->Polygon.OffsetLine;

+      raster->offset_tri = ctx->Polygon.OffsetFill;

+   }

+

+   if (ctx->Polygon.OffsetPoint ||

+       ctx->Polygon.OffsetLine ||

+       ctx->Polygon.OffsetFill) {

+      raster->offset_units = ctx->Polygon.OffsetUnits;

+      raster->offset_scale = ctx->Polygon.OffsetFactor;

+   }

+

+   if (ctx->Polygon.SmoothFlag)

+      raster->poly_smooth = 1;

+

+   if (ctx->Polygon.StippleFlag)

+      raster->poly_stipple_enable = 1;

+

+   /* _NEW_POINT

+    */

+   raster->point_size = ctx->Point.Size;

+

+   if (!ctx->Point.PointSprite && ctx->Point.SmoothFlag)

+      raster->point_smooth = 1;

+

+   /* _NEW_POINT | _NEW_PROGRAM

+    */

+   if (ctx->Point.PointSprite) {

+      /* origin */

+      if ((ctx->Point.SpriteOrigin == GL_UPPER_LEFT) ^

+          (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM))

+         raster->sprite_coord_mode = PIPE_SPRITE_COORD_UPPER_LEFT;

+      else 

+         raster->sprite_coord_mode = PIPE_SPRITE_COORD_LOWER_LEFT;

+

+      /* Coord replacement flags.  If bit 'k' is set that means

+       * that we need to replace GENERIC[k] attrib with an automatically

+       * computed texture coord.

+       */

+      for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) {

+         if (ctx->Point.CoordReplace[i]) {

+            raster->sprite_coord_enable |= 1 << i;

+         }

+      }

+      if (fragProg->Base.InputsRead & FRAG_BIT_PNTC) {

+         raster->sprite_coord_enable |=

+            1 << (FRAG_ATTRIB_PNTC - FRAG_ATTRIB_TEX0);

+      }

+

+      raster->point_quad_rasterization = 1;

+   }

+

+   /* ST_NEW_VERTEX_PROGRAM

+    */

+   if (vertProg) {

+      if (vertProg->Base.Id == 0) {

+         if (vertProg->Base.OutputsWritten & BITFIELD64_BIT(VERT_RESULT_PSIZ)) {

+            /* generated program which emits point size */

+            raster->point_size_per_vertex = TRUE;

+         }

+      }

+      else if (ctx->VertexProgram.PointSizeEnabled) {

+         /* user-defined program and GL_VERTEX_PROGRAM_POINT_SIZE set */

+         raster->point_size_per_vertex = ctx->VertexProgram.PointSizeEnabled;

+      }

+   }

+   if (!raster->point_size_per_vertex) {

+      /* clamp size now */

+      raster->point_size = CLAMP(ctx->Point.Size,

+                                 ctx->Point.MinSize,

+                                 ctx->Point.MaxSize);

+   }

+

+   /* _NEW_LINE

+    */

+   raster->line_smooth = ctx->Line.SmoothFlag;

+   if (ctx->Line.SmoothFlag) {

+      raster->line_width = CLAMP(ctx->Line.Width,

+                                ctx->Const.MinLineWidthAA,

+                                ctx->Const.MaxLineWidthAA);

+   }

+   else {

+      raster->line_width = CLAMP(ctx->Line.Width,

+                                ctx->Const.MinLineWidth,

+                                ctx->Const.MaxLineWidth);

+   }

+

+   raster->line_stipple_enable = ctx->Line.StippleFlag;

+   raster->line_stipple_pattern = ctx->Line.StipplePattern;

+   /* GL stipple factor is in [1,256], remap to [0, 255] here */

+   raster->line_stipple_factor = ctx->Line.StippleFactor - 1;

+

+   /* _NEW_MULTISAMPLE */

+   if (ctx->Multisample._Enabled || st->force_msaa)

+      raster->multisample = 1;

+

+   /* _NEW_SCISSOR */

+   if (ctx->Scissor.Enabled)

+      raster->scissor = 1;

+

+   raster->gl_rasterization_rules = 1;

+

+   cso_set_rasterizer(st->cso_context, raster);

+}

+

+const struct st_tracked_state st_update_rasterizer = {

+   "st_update_rasterizer",    /* name */

+   {

+      (_NEW_BUFFERS |

+       _NEW_LIGHT |

+       _NEW_LINE |

+       _NEW_MULTISAMPLE |

+       _NEW_POINT |

+       _NEW_POLYGON |

+       _NEW_PROGRAM |

+       _NEW_SCISSOR),      /* mesa state dependencies*/

+      ST_NEW_VERTEX_PROGRAM,  /* state tracker dependencies */

+   },

+   update_raster_state     /* update function */

+};