src/gallium/drivers/llvmpipe/lp_setup_context.h

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  27
  28
  29 /**
  30  * The setup code is concerned with point/line/triangle setup and
  31  * putting commands/data into the bins.
  32  */
  33
  34
  35 #ifndef LP_SETUP_CONTEXT_H
  36 #define LP_SETUP_CONTEXT_H
  37
  38 #include "lp_setup.h"
  39 #include "lp_rast.h"
  40 #include "lp_tile_soa.h"        /* for TILE_SIZE */
  41 #include "lp_scene.h"
  42
  43 #include "draw/draw_vbuf.h"
  44 #include "util/u_rect.h"
  45
  46 #define LP_SETUP_NEW_FS          0x01
  47 #define LP_SETUP_NEW_CONSTANTS   0x02
  48 #define LP_SETUP_NEW_BLEND_COLOR 0x04
  49 #define LP_SETUP_NEW_SCISSOR     0x08
  50
  51
  52
  53 /** Max number of scenes */
  54 #define MAX_SCENES 2
  55
  56
  57
  58 /**
  59  * Point/line/triangle setup context.
  60  * Note: "stored" below indicates data which is stored in the bins,
  61  * not arbitrary malloc'd memory.
  62  *
  63  *
  64  * Subclass of vbuf_render, plugged directly into the draw module as
  65  * the rendering backend.
  66  */
  67 struct lp_setup_context
  68 {
  69    struct vbuf_render base;
  70
  71    struct pipe_context *pipe;
  72    struct vertex_info *vertex_info;
  73    uint prim;
  74    uint vertex_size;
  75    uint nr_vertices;
  76    uint sprite;
  77    uint vertex_buffer_size;
  78    void *vertex_buffer;
  79
  80    /* Final pipeline stage for draw module.  Draw module should
  81     * create/install this itself now.
  82     */
  83    struct draw_stage *vbuf;
  84    unsigned num_threads;
  85    unsigned scene_idx;
  86    struct lp_scene *scenes[MAX_SCENES];  /**< all the scenes */
  87    struct lp_scene *scene;               /**< current scene being built */
  88
  89    struct lp_fence *last_fence;
  90    struct llvmpipe_query *active_query;
  91
  92    boolean flatshade_first;
  93    boolean ccw_is_frontface;
  94    boolean scissor_test;
  95    boolean point_size_per_vertex;
  96    unsigned cullmode;
  97    float pixel_offset;
  98    float line_width;
  99    float point_size;
 100    float psize;
 101
 102    struct pipe_framebuffer_state fb;
 103    struct u_rect framebuffer;
 104    struct u_rect scissor;
 105    struct u_rect draw_region;   /* intersection of fb & scissor */
 106
 107    struct {
 108       unsigned flags;
 109       union lp_rast_cmd_arg color;    /**< lp_rast_clear_color() cmd */
 110       unsigned zsmask;
 111       unsigned zsvalue;               /**< lp_rast_clear_zstencil() cmd */
 112    } clear;
 113
 114    enum setup_state {
 115       SETUP_FLUSHED,    /**< scene is null */
 116       SETUP_CLEARED,    /**< scene exists but has only clears */
 117       SETUP_ACTIVE      /**< scene exists and has at least one draw/query */
 118    } state;
 119
 120    struct {
 121       struct lp_shader_input input[PIPE_MAX_ATTRIBS];
 122       unsigned nr_inputs;
 123
 124       const struct lp_rast_state *stored; /**< what's in the scene */
 125       struct lp_rast_state current;  /**< currently set state */
 126       struct pipe_resource *current_tex[PIPE_MAX_SAMPLERS];
 127    } fs;
 128
 129    /** fragment shader constants */
 130    struct {
 131       struct pipe_resource *current;
 132       unsigned stored_size;
 133       const void *stored_data;
 134    } constants;
 135
 136    struct {
 137       struct pipe_blend_color current;
 138       uint8_t *stored;
 139    } blend_color;
 140
 141
 142    unsigned dirty;   /**< bitmask of LP_SETUP_NEW_x bits */
 143
 144    void (*point)( struct lp_setup_context *,
 145                   const float (*v0)[4]);
 146
 147    void (*line)( struct lp_setup_context *,
 148                  const float (*v0)[4],
 149                  const float (*v1)[4]);
 150
 151    void (*triangle)( struct lp_setup_context *,
 152                      const float (*v0)[4],
 153                      const float (*v1)[4],
 154                      const float (*v2)[4]);
 155 };
 156
 157 void lp_setup_choose_triangle( struct lp_setup_context *setup );
 158 void lp_setup_choose_line( struct lp_setup_context *setup );
 159 void lp_setup_choose_point( struct lp_setup_context *setup );
 160
 161 void lp_setup_init_vbuf(struct lp_setup_context *setup);
 162
 163 void lp_setup_update_state( struct lp_setup_context *setup,
 164                             boolean update_scene);
 165
 166 void lp_setup_destroy( struct lp_setup_context *setup );
 167
 168 void lp_setup_flush_and_restart(struct lp_setup_context *setup);
 169
 170 void
 171 lp_setup_print_triangle(struct lp_setup_context *setup,
 172                         const float (*v0)[4],
 173                         const float (*v1)[4],
 174                         const float (*v2)[4]);
 175
 176 void
 177 lp_setup_print_vertex(struct lp_setup_context *setup,
 178                       const char *name,
 179                       const float (*v)[4]);
 180
 181
 182 struct lp_rast_triangle *
 183 lp_setup_alloc_triangle(struct lp_scene *scene,
 184                         unsigned nr_inputs,
 185                         unsigned nr_planes,
 186                         unsigned *tri_size);
 187
 188 boolean
 189 lp_setup_bin_triangle( struct lp_setup_context *setup,
 190                        struct lp_rast_triangle *tri,
 191                        const struct u_rect *bbox,
 192                        int nr_planes );
 193
 194 void lp_setup_flush_and_restart(struct lp_setup_context *setup);
 195
 196 #endif