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      1 /**************************************************************************
      2  *
      3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
      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 TUNGSTEN GRAPHICS 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 <keith (at) tungstengraphics.com>
     29  */
     30 
     31 #ifndef SP_STATE_H
     32 #define SP_STATE_H
     33 
     34 #include "pipe/p_state.h"
     35 #include "tgsi/tgsi_scan.h"
     36 
     37 
     38 #define SP_NEW_VIEWPORT      0x1
     39 #define SP_NEW_RASTERIZER    0x2
     40 #define SP_NEW_FS            0x4
     41 #define SP_NEW_BLEND         0x8
     42 #define SP_NEW_CLIP          0x10
     43 #define SP_NEW_SCISSOR       0x20
     44 #define SP_NEW_STIPPLE       0x40
     45 #define SP_NEW_FRAMEBUFFER   0x80
     46 #define SP_NEW_DEPTH_STENCIL_ALPHA 0x100
     47 #define SP_NEW_CONSTANTS     0x200
     48 #define SP_NEW_SAMPLER       0x400
     49 #define SP_NEW_TEXTURE       0x800
     50 #define SP_NEW_VERTEX        0x1000
     51 #define SP_NEW_VS            0x2000
     52 #define SP_NEW_QUERY         0x4000
     53 #define SP_NEW_GS            0x8000
     54 #define SP_NEW_SO            0x10000
     55 #define SP_NEW_SO_BUFFERS    0x20000
     56 
     57 
     58 struct tgsi_sampler;
     59 struct tgsi_exec_machine;
     60 struct vertex_info;
     61 
     62 
     63 struct sp_fragment_shader_variant_key
     64 {
     65    boolean polygon_stipple;
     66 };
     67 
     68 
     69 struct sp_fragment_shader_variant
     70 {
     71    const struct tgsi_token *tokens;
     72    struct sp_fragment_shader_variant_key key;
     73    struct tgsi_shader_info info;
     74 
     75    unsigned stipple_sampler_unit;
     76 
     77    /* See comments about this elsewhere */
     78 #if 0
     79    struct draw_fragment_shader *draw_shader;
     80 #endif
     81 
     82    void (*prepare)(const struct sp_fragment_shader_variant *shader,
     83 		   struct tgsi_exec_machine *machine,
     84 		   struct tgsi_sampler **samplers);
     85 
     86    unsigned (*run)(const struct sp_fragment_shader_variant *shader,
     87 		   struct tgsi_exec_machine *machine,
     88 		   struct quad_header *quad);
     89 
     90    /* Deletes this instance of the object */
     91    void (*delete)(struct sp_fragment_shader_variant *shader,
     92                   struct tgsi_exec_machine *machine);
     93 
     94    struct sp_fragment_shader_variant *next;
     95 };
     96 
     97 
     98 /** Subclass of pipe_shader_state */
     99 struct sp_fragment_shader {
    100    struct pipe_shader_state shader;
    101    struct sp_fragment_shader_variant *variants;
    102    struct draw_fragment_shader *draw_shader;
    103 };
    104 
    105 
    106 /** Subclass of pipe_shader_state */
    107 struct sp_vertex_shader {
    108    struct pipe_shader_state shader;
    109    struct draw_vertex_shader *draw_data;
    110    int max_sampler;             /* -1 if no samplers */
    111 };
    112 
    113 /** Subclass of pipe_shader_state */
    114 struct sp_geometry_shader {
    115    struct pipe_shader_state shader;
    116    struct draw_geometry_shader *draw_data;
    117    int max_sampler;
    118 };
    119 
    120 struct sp_velems_state {
    121    unsigned count;
    122    struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
    123 };
    124 
    125 struct sp_so_state {
    126    struct pipe_stream_output_info base;
    127 };
    128 
    129 
    130 void
    131 softpipe_init_blend_funcs(struct pipe_context *pipe);
    132 
    133 void
    134 softpipe_init_clip_funcs(struct pipe_context *pipe);
    135 
    136 void
    137 softpipe_init_sampler_funcs(struct pipe_context *pipe);
    138 
    139 void
    140 softpipe_init_rasterizer_funcs(struct pipe_context *pipe);
    141 
    142 void
    143 softpipe_init_shader_funcs(struct pipe_context *pipe);
    144 
    145 void
    146 softpipe_init_streamout_funcs(struct pipe_context *pipe);
    147 
    148 void
    149 softpipe_init_vertex_funcs(struct pipe_context *pipe);
    150 
    151 void
    152 softpipe_set_framebuffer_state(struct pipe_context *,
    153                                const struct pipe_framebuffer_state *);
    154 
    155 void
    156 softpipe_update_derived(struct softpipe_context *softpipe, unsigned prim);
    157 
    158 void
    159 softpipe_draw_vbo(struct pipe_context *pipe,
    160                   const struct pipe_draw_info *info);
    161 
    162 void
    163 softpipe_map_transfers(struct softpipe_context *sp);
    164 
    165 void
    166 softpipe_unmap_transfers(struct softpipe_context *sp);
    167 
    168 void
    169 softpipe_map_texture_surfaces(struct softpipe_context *sp);
    170 
    171 void
    172 softpipe_unmap_texture_surfaces(struct softpipe_context *sp);
    173 
    174 
    175 struct vertex_info *
    176 softpipe_get_vertex_info(struct softpipe_context *softpipe);
    177 
    178 struct vertex_info *
    179 softpipe_get_vbuf_vertex_info(struct softpipe_context *softpipe);
    180 
    181 
    182 struct sp_fragment_shader_variant *
    183 softpipe_find_fs_variant(struct softpipe_context *softpipe,
    184                          struct sp_fragment_shader *fs,
    185                          const struct sp_fragment_shader_variant_key *key);
    186 
    187 
    188 struct sp_fragment_shader_variant *
    189 softpipe_find_fs_variant(struct softpipe_context *softpipe,
    190                          struct sp_fragment_shader *fs,
    191                          const struct sp_fragment_shader_variant_key *key);
    192 
    193 
    194 #endif
    195