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      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 (at) vmware.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_image;
     60 struct tgsi_buffer;
     61 struct tgsi_exec_machine;
     62 struct vertex_info;
     63 
     64 
     65 struct sp_fragment_shader_variant_key
     66 {
     67    boolean polygon_stipple;
     68 };
     69 
     70 
     71 struct sp_fragment_shader_variant
     72 {
     73    const struct tgsi_token *tokens;
     74    struct sp_fragment_shader_variant_key key;
     75    struct tgsi_shader_info info;
     76 
     77    unsigned stipple_sampler_unit;
     78 
     79    /* See comments about this elsewhere */
     80 #if 0
     81    struct draw_fragment_shader *draw_shader;
     82 #endif
     83 
     84    void (*prepare)(const struct sp_fragment_shader_variant *shader,
     85 		   struct tgsi_exec_machine *machine,
     86 		   struct tgsi_sampler *sampler,
     87 		   struct tgsi_image *image,
     88 		   struct tgsi_buffer *buffer);
     89 
     90    unsigned (*run)(const struct sp_fragment_shader_variant *shader,
     91 		   struct tgsi_exec_machine *machine,
     92 		   struct quad_header *quad,
     93 		   bool early_depth_test);
     94 
     95    /* Deletes this instance of the object */
     96    void (*delete)(struct sp_fragment_shader_variant *shader,
     97                   struct tgsi_exec_machine *machine);
     98 
     99    struct sp_fragment_shader_variant *next;
    100 };
    101 
    102 
    103 /** Subclass of pipe_shader_state */
    104 struct sp_fragment_shader {
    105    struct pipe_shader_state shader;
    106    struct sp_fragment_shader_variant *variants;
    107    struct draw_fragment_shader *draw_shader;
    108 };
    109 
    110 
    111 /** Subclass of pipe_shader_state */
    112 struct sp_vertex_shader {
    113    struct pipe_shader_state shader;
    114    struct draw_vertex_shader *draw_data;
    115    int max_sampler;             /* -1 if no samplers */
    116 };
    117 
    118 /** Subclass of pipe_shader_state */
    119 struct sp_geometry_shader {
    120    struct pipe_shader_state shader;
    121    struct draw_geometry_shader *draw_data;
    122    int max_sampler;
    123 };
    124 
    125 struct sp_velems_state {
    126    unsigned count;
    127    struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
    128 };
    129 
    130 struct sp_so_state {
    131    struct pipe_stream_output_info base;
    132 };
    133 
    134 /** Subclass of pipe_compute_state */
    135 struct sp_compute_shader {
    136    struct pipe_compute_state shader;
    137    struct tgsi_token *tokens;
    138    struct tgsi_shader_info info;
    139    int max_sampler;             /* -1 if no samplers */
    140 };
    141 
    142 void
    143 softpipe_init_blend_funcs(struct pipe_context *pipe);
    144 
    145 void
    146 softpipe_init_clip_funcs(struct pipe_context *pipe);
    147 
    148 void
    149 softpipe_init_sampler_funcs(struct pipe_context *pipe);
    150 
    151 void
    152 softpipe_init_rasterizer_funcs(struct pipe_context *pipe);
    153 
    154 void
    155 softpipe_init_shader_funcs(struct pipe_context *pipe);
    156 
    157 void
    158 softpipe_init_streamout_funcs(struct pipe_context *pipe);
    159 
    160 void
    161 softpipe_init_vertex_funcs(struct pipe_context *pipe);
    162 
    163 void
    164 softpipe_init_image_funcs(struct pipe_context *pipe);
    165 
    166 void
    167 softpipe_set_framebuffer_state(struct pipe_context *,
    168                                const struct pipe_framebuffer_state *);
    169 
    170 void
    171 softpipe_update_derived(struct softpipe_context *softpipe, unsigned prim);
    172 
    173 void
    174 softpipe_set_sampler_views(struct pipe_context *pipe,
    175                            enum pipe_shader_type shader,
    176                            unsigned start,
    177                            unsigned num,
    178                            struct pipe_sampler_view **views);
    179 
    180 
    181 void
    182 softpipe_draw_vbo(struct pipe_context *pipe,
    183                   const struct pipe_draw_info *info);
    184 
    185 void
    186 softpipe_map_texture_surfaces(struct softpipe_context *sp);
    187 
    188 void
    189 softpipe_unmap_texture_surfaces(struct softpipe_context *sp);
    190 
    191 
    192 struct vertex_info *
    193 softpipe_get_vbuf_vertex_info(struct softpipe_context *softpipe);
    194 
    195 
    196 struct sp_fragment_shader_variant *
    197 softpipe_find_fs_variant(struct softpipe_context *softpipe,
    198                          struct sp_fragment_shader *fs,
    199                          const struct sp_fragment_shader_variant_key *key);
    200 
    201 
    202 struct sp_fragment_shader_variant *
    203 softpipe_find_fs_variant(struct softpipe_context *softpipe,
    204                          struct sp_fragment_shader *fs,
    205                          const struct sp_fragment_shader_variant_key *key);
    206 
    207 void
    208 softpipe_prepare_vertex_sampling(struct softpipe_context *ctx,
    209                                  unsigned num,
    210                                  struct pipe_sampler_view **views);
    211 void
    212 softpipe_cleanup_vertex_sampling(struct softpipe_context *ctx);
    213 
    214 
    215 void
    216 softpipe_prepare_geometry_sampling(struct softpipe_context *ctx,
    217                                    unsigned num,
    218                                    struct pipe_sampler_view **views);
    219 void
    220 softpipe_cleanup_geometry_sampling(struct softpipe_context *ctx);
    221 
    222 
    223 void
    224 softpipe_launch_grid(struct pipe_context *context,
    225                      const struct pipe_grid_info *info);
    226 
    227 void
    228 softpipe_update_compute_samplers(struct softpipe_context *softpipe);
    229 #endif
    230