| /* |
| Copyright (C) Intel Corp. 2006. All Rights Reserved. |
| Intel funded Tungsten Graphics (http://www.tungstengraphics.com) 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 |
| 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 (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. |
| IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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 "glheader.h" |
| #include "macros.h" |
| #include "enums.h" |
| |
| #include "intel_batchbuffer.h" |
| |
| #include "brw_defines.h" |
| #include "brw_context.h" |
| #include "brw_eu.h" |
| #include "brw_util.h" |
| #include "brw_sf.h" |
| #include "brw_state.h" |
| |
| static void compile_sf_prog( struct brw_context *brw, |
| struct brw_sf_prog_key *key ) |
| { |
| struct brw_sf_compile c; |
| const GLuint *program; |
| GLuint program_size; |
| GLuint i, idx; |
| |
| memset(&c, 0, sizeof(c)); |
| |
| /* Begin the compilation: |
| */ |
| brw_init_compile(brw, &c.func); |
| |
| 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 & DO_SETUP_BITS); |
| c.nr_setup_regs = (c.nr_setup_attrs+1)/2; |
| |
| c.prog_data.urb_read_length = c.nr_attr_regs; |
| c.prog_data.urb_entry_size = c.nr_setup_regs * 2; |
| |
| /* Construct map from attribute number to position in the vertex. |
| */ |
| for (i = idx = 0; i < VERT_RESULT_MAX; i++) |
| if (c.key.attrs & (1<<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 = |
| brw->attribs.Point->CoordReplace[i - VERT_RESULT_TEX0]; |
| } else |
| c.point_attrs[i].CoordReplace = GL_FALSE; |
| idx++; |
| } |
| |
| /* Which primitive? Or all three? |
| */ |
| switch (key->primitive) { |
| case SF_TRIANGLES: |
| c.nr_verts = 3; |
| brw_emit_tri_setup( &c, GL_TRUE ); |
| break; |
| case SF_LINES: |
| c.nr_verts = 2; |
| brw_emit_line_setup( &c, GL_TRUE ); |
| break; |
| case SF_POINTS: |
| c.nr_verts = 1; |
| if (key->do_point_sprite) |
| brw_emit_point_sprite_setup( &c, GL_TRUE ); |
| else |
| brw_emit_point_setup( &c, GL_TRUE ); |
| break; |
| case SF_UNFILLED_TRIS: |
| c.nr_verts = 3; |
| brw_emit_anyprim_setup( &c ); |
| break; |
| default: |
| assert(0); |
| return; |
| } |
| |
| |
| /* 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 ); |
| } |
| |
| /* Calculate interpolants for triangle and line rasterization. |
| */ |
| static int upload_sf_prog( struct brw_context *brw ) |
| { |
| struct brw_sf_prog_key key; |
| |
| 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_REDUCED_PRIMITIVE */ |
| switch (brw->intel.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 & (1<<VERT_RESULT_EDGE)) |
| key.primitive = SF_UNFILLED_TRIS; |
| else |
| key.primitive = SF_TRIANGLES; |
| break; |
| case GL_LINES: |
| key.primitive = SF_LINES; |
| break; |
| case GL_POINTS: |
| key.primitive = SF_POINTS; |
| break; |
| } |
| |
| key.do_point_sprite = brw->attribs.Point->PointSprite; |
| key.SpriteOrigin = brw->attribs.Point->SpriteOrigin; |
| /* _NEW_LIGHT */ |
| key.do_flat_shading = (brw->attribs.Light->ShadeModel == GL_FLAT); |
| key.do_twoside_color = (brw->attribs.Light->Enabled && brw->attribs.Light->Model.TwoSide); |
| |
| /* _NEW_POLYGON */ |
| if (key.do_twoside_color) |
| key.frontface_ccw = (brw->attribs.Polygon->FrontFace == GL_CCW); |
| |
| 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) |
| compile_sf_prog( brw, &key ); |
| return dri_bufmgr_check_aperture_space(brw->sf.prog_bo); |
| } |
| |
| |
| const struct brw_tracked_state brw_sf_prog = { |
| .dirty = { |
| .mesa = (_NEW_LIGHT|_NEW_POLYGON|_NEW_POINT), |
| .brw = (BRW_NEW_REDUCED_PRIMITIVE), |
| .cache = CACHE_NEW_VS_PROG |
| }, |
| .prepare = upload_sf_prog |
| }; |
| |