i965: Add _CACHE_ in brw_cache_id enum names.
[mesa.git] / src / mesa / drivers / dri / i965 / brw_sf.c
index 968890f7fb19978ec727c5e10b65dc16c71a0a83..a41a4ad4a4347f38683fae8623cbde68777bbb3f 100644 (file)
@@ -1,8 +1,8 @@
 /*
  Copyright (C) Intel Corp.  2006.  All Rights Reserved.
- Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ Intel funded Tungsten Graphics to
  develop this 3D driver.
+
  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
  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 (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 NONINFRINGEMENT.
  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>
+  *   Keith Whitwell <keithw@vmware.com>
   */
-  
+
 
 #include "main/glheader.h"
 #include "main/macros.h"
+#include "main/mtypes.h"
 #include "main/enums.h"
+#include "main/fbobject.h"
 
 #include "intel_batchbuffer.h"
 
 #include "brw_sf.h"
 #include "brw_state.h"
 
+#include "util/ralloc.h"
+
 static void compile_sf_prog( struct brw_context *brw,
                             struct brw_sf_prog_key *key )
 {
-   GLcontext *ctx = &brw->intel.ctx;
    struct brw_sf_compile c;
    const GLuint *program;
+   void *mem_ctx;
    GLuint program_size;
-   GLuint i, idx;
 
    memset(&c, 0, sizeof(c));
 
+   mem_ctx = ralloc_context(NULL);
    /* Begin the compilation:
     */
-   brw_init_compile(brw, &c.func);
+   brw_init_compile(brw, &c.func, mem_ctx);
 
    c.key = *key;
-   c.nr_attrs = brw_count_bits(c.key.attrs);
-   c.nr_attr_regs = (c.nr_attrs+1)/2;
-   c.nr_setup_attrs = brw_count_bits(c.key.attrs);
-   c.nr_setup_regs = (c.nr_setup_attrs+1)/2;
+   c.vue_map = brw->vue_map_geom_out;
+   if (c.key.do_point_coord) {
+      /*
+       * gl_PointCoord is a FS instead of VS builtin variable, thus it's
+       * not included in c.vue_map generated in VS stage. Here we add
+       * it manually to let SF shader generate the needed interpolation
+       * coefficient for FS shader.
+       */
+      c.vue_map.varying_to_slot[BRW_VARYING_SLOT_PNTC] = c.vue_map.num_slots;
+      c.vue_map.slot_to_varying[c.vue_map.num_slots++] = BRW_VARYING_SLOT_PNTC;
+   }
+   c.urb_entry_read_offset = BRW_SF_URB_ENTRY_READ_OFFSET;
+   c.nr_attr_regs = (c.vue_map.num_slots + 1)/2 - c.urb_entry_read_offset;
+   c.nr_setup_regs = c.nr_attr_regs;
 
    c.prog_data.urb_read_length = c.nr_attr_regs;
    c.prog_data.urb_entry_size = c.nr_setup_regs * 2;
+   c.has_flat_shading = brw_any_flat_varyings(&key->interpolation_mode);
 
-   /* Construct map from attribute number to position in the vertex.
-    */
-   for (i = idx = 0; i < VERT_RESULT_MAX; i++) 
-      if (c.key.attrs & BITFIELD64_BIT(i)) {
-        c.attr_to_idx[i] = idx;
-        c.idx_to_attr[idx] = i;
-        if (i >= VERT_RESULT_TEX0 && i <= VERT_RESULT_TEX7) {
-            c.point_attrs[i].CoordReplace = 
-               ctx->Point.CoordReplace[i - VERT_RESULT_TEX0];
-        }
-         else {
-            c.point_attrs[i].CoordReplace = GL_FALSE;
-         }
-        idx++;
-      }
-   
-   /* Which primitive?  Or all three? 
+   /* Which primitive?  Or all three?
     */
    switch (key->primitive) {
    case SF_TRIANGLES:
       c.nr_verts = 3;
-      brw_emit_tri_setup( &c, GL_TRUE );
+      brw_emit_tri_setup( &c, true );
       break;
    case SF_LINES:
       c.nr_verts = 2;
-      brw_emit_line_setup( &c, GL_TRUE );
+      brw_emit_line_setup( &c, true );
       break;
    case SF_POINTS:
       c.nr_verts = 1;
       if (key->do_point_sprite)
-         brw_emit_point_sprite_setup( &c, GL_TRUE );
+         brw_emit_point_sprite_setup( &c, true );
       else
-         brw_emit_point_setup( &c, GL_TRUE );
+         brw_emit_point_setup( &c, true );
       break;
    case SF_UNFILLED_TRIS:
       c.nr_verts = 3;
       brw_emit_anyprim_setup( &c );
       break;
    default:
-      assert(0);
-      return;
+      unreachable("not reached");
    }
 
+   /* FINISHME: SF programs use calculated jumps (i.e., JMPI with a register
+    * source). Compacting would be difficult.
+    */
+   /* brw_compact_instructions(&c.func, 0, 0, NULL); */
+
    /* get the program
     */
    program = brw_get_program(&c.func, &program_size);
 
-   /* Upload
-    */
-   dri_bo_unreference(brw->sf.prog_bo);
-   brw->sf.prog_bo = brw_upload_cache( &brw->cache, BRW_SF_PROG,
-                                      &c.key, sizeof(c.key),
-                                      NULL, 0,
-                                      program, program_size,
-                                      &c.prog_data,
-                                      &brw->sf.prog_data );
+   if (unlikely(INTEL_DEBUG & DEBUG_SF)) {
+      fprintf(stderr, "sf:\n");
+      brw_disassemble(brw, c.func.store, 0, program_size, stderr);
+      fprintf(stderr, "\n");
+   }
+
+   brw_upload_cache(&brw->cache, BRW_CACHE_SF_PROG,
+                   &c.key, sizeof(c.key),
+                   program, program_size,
+                   &c.prog_data, sizeof(c.prog_data),
+                   &brw->sf.prog_offset, &brw->sf.prog_data);
+   ralloc_free(mem_ctx);
 }
 
 /* Calculate interpolants for triangle and line rasterization.
  */
-static void upload_sf_prog(struct brw_context *brw)
+static void
+brw_upload_sf_prog(struct brw_context *brw)
 {
-   GLcontext *ctx = &brw->intel.ctx;
+   struct gl_context *ctx = &brw->ctx;
    struct brw_sf_prog_key key;
+   /* _NEW_BUFFERS */
+   bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
 
    memset(&key, 0, sizeof(key));
 
    /* Populate the key, noting state dependencies:
     */
-   /* CACHE_NEW_VS_PROG */
-   key.attrs = brw->vs.prog_data->outputs_written; 
+   /* BRW_NEW_VUE_MAP_GEOM_OUT */
+   key.attrs = brw->vue_map_geom_out.slots_valid;
 
    /* BRW_NEW_REDUCED_PRIMITIVE */
-   switch (brw->intel.reduced_primitive) {
-   case GL_TRIANGLES: 
+   switch (brw->reduced_primitive) {
+   case GL_TRIANGLES:
       /* NOTE: We just use the edgeflag attribute as an indicator that
        * unfilled triangles are active.  We don't actually do the
        * edgeflag testing here, it is already done in the clip
        * program.
        */
-      if (key.attrs & BITFIELD64_BIT(VERT_RESULT_EDGE))
+      if (key.attrs & BITFIELD64_BIT(VARYING_SLOT_EDGE))
         key.primitive = SF_UNFILLED_TRIS;
       else
         key.primitive = SF_TRIANGLES;
       break;
-   case GL_LINES: 
-      key.primitive = SF_LINES; 
+   case GL_LINES:
+      key.primitive = SF_LINES;
       break;
-   case GL_POINTS: 
-      key.primitive = SF_POINTS; 
+   case GL_POINTS:
+      key.primitive = SF_POINTS;
       break;
    }
 
+   /* _NEW_TRANSFORM */
+   key.userclip_active = (ctx->Transform.ClipPlanesEnabled != 0);
+
+   /* _NEW_POINT */
    key.do_point_sprite = ctx->Point.PointSprite;
-   key.sprite_origin_lower_left = (ctx->Point.SpriteOrigin == GL_LOWER_LEFT);
-   /* _NEW_LIGHT */
-   key.do_flat_shading = (ctx->Light.ShadeModel == GL_FLAT);
-   key.do_twoside_color = (ctx->Light.Enabled && ctx->Light.Model.TwoSide);
+   if (key.do_point_sprite) {
+      int i;
 
-   /* _NEW_HINT */
-   key.linear_color = (ctx->Hint.PerspectiveCorrection == GL_FASTEST);
+      for (i = 0; i < 8; i++) {
+        if (ctx->Point.CoordReplace[i])
+           key.point_sprite_coord_replace |= (1 << i);
+      }
+   }
+   if (brw->fragment_program->Base.InputsRead & BITFIELD64_BIT(VARYING_SLOT_PNTC))
+      key.do_point_coord = 1;
+   /*
+    * Window coordinates in a FBO are inverted, which means point
+    * sprite origin must be inverted, too.
+    */
+   if ((ctx->Point.SpriteOrigin == GL_LOWER_LEFT) != render_to_fbo)
+      key.sprite_origin_lower_left = true;
+
+   /* BRW_NEW_INTERPOLATION_MAP */
+   key.interpolation_mode = brw->interpolation_mode;
+
+   /* _NEW_LIGHT | _NEW_PROGRAM */
+   key.do_twoside_color = ((ctx->Light.Enabled && ctx->Light.Model.TwoSide) ||
+                           ctx->VertexProgram._TwoSideEnabled);
 
    /* _NEW_POLYGON */
    if (key.do_twoside_color) {
       /* If we're rendering to a FBO, we have to invert the polygon
        * face orientation, just as we invert the viewport in
-       * sf_unit_create_from_key().  ctx->DrawBuffer->Name will be
-       * nonzero if we're rendering to such an FBO.
+       * sf_unit_create_from_key().
        */
-      key.frontface_ccw = (ctx->Polygon.FrontFace == GL_CCW) ^ (ctx->DrawBuffer->Name != 0);
+      key.frontface_ccw = (ctx->Polygon.FrontFace == GL_CCW) != render_to_fbo;
    }
 
-   dri_bo_unreference(brw->sf.prog_bo);
-   brw->sf.prog_bo = brw_search_cache(&brw->cache, BRW_SF_PROG,
-                                     &key, sizeof(key),
-                                     NULL, 0,
-                                     &brw->sf.prog_data);
-   if (brw->sf.prog_bo == NULL)
+   if (!brw_search_cache(&brw->cache, BRW_CACHE_SF_PROG,
+                        &key, sizeof(key),
+                        &brw->sf.prog_offset, &brw->sf.prog_data)) {
       compile_sf_prog( brw, &key );
+   }
 }
 
 
 const struct brw_tracked_state brw_sf_prog = {
    .dirty = {
-      .mesa  = (_NEW_HINT | _NEW_LIGHT | _NEW_POLYGON | _NEW_POINT),
-      .brw   = (BRW_NEW_REDUCED_PRIMITIVE),
-      .cache = CACHE_NEW_VS_PROG
+      .mesa  = _NEW_BUFFERS |
+               _NEW_HINT |
+               _NEW_LIGHT |
+               _NEW_POINT |
+               _NEW_POLYGON |
+               _NEW_PROGRAM |
+               _NEW_TRANSFORM,
+      .brw   = BRW_NEW_INTERPOLATION_MAP |
+               BRW_NEW_REDUCED_PRIMITIVE |
+               BRW_NEW_VUE_MAP_GEOM_OUT,
    },
-   .prepare = upload_sf_prog
+   .emit = brw_upload_sf_prog
 };