1 /************************************************************************** 2 * 3 * Copyright 2007 VMware, Inc. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 /* Authors: Keith Whitwell <keithw@vmware.com> 29 */ 30 31 #ifndef SP_QUAD_PIPE_H 32 #define SP_QUAD_PIPE_H 33 34 35 struct softpipe_context; 36 struct quad_header; 37 38 39 /** 40 * Fragment processing is performed on 2x2 blocks of pixels called "quads". 41 * Quad processing is performed with a pipeline of stages represented by 42 * this type. 43 */ 44 struct quad_stage { 45 struct softpipe_context *softpipe; 46 47 struct quad_stage *next; 48 49 void (*begin)(struct quad_stage *qs); 50 51 /** the stage action */ 52 void (*run)(struct quad_stage *qs, struct quad_header *quad[], unsigned nr); 53 54 void (*destroy)(struct quad_stage *qs); 55 }; 56 57 58 struct quad_stage *sp_quad_polygon_stipple_stage( struct softpipe_context *softpipe ); 59 struct quad_stage *sp_quad_earlyz_stage( struct softpipe_context *softpipe ); 60 struct quad_stage *sp_quad_shade_stage( struct softpipe_context *softpipe ); 61 struct quad_stage *sp_quad_alpha_test_stage( struct softpipe_context *softpipe ); 62 struct quad_stage *sp_quad_stencil_test_stage( struct softpipe_context *softpipe ); 63 struct quad_stage *sp_quad_depth_test_stage( struct softpipe_context *softpipe ); 64 struct quad_stage *sp_quad_occlusion_stage( struct softpipe_context *softpipe ); 65 struct quad_stage *sp_quad_coverage_stage( struct softpipe_context *softpipe ); 66 struct quad_stage *sp_quad_blend_stage( struct softpipe_context *softpipe ); 67 struct quad_stage *sp_quad_colormask_stage( struct softpipe_context *softpipe ); 68 struct quad_stage *sp_quad_output_stage( struct softpipe_context *softpipe ); 69 70 void sp_build_quad_pipeline(struct softpipe_context *sp); 71 72 #endif /* SP_QUAD_PIPE_H */ 73