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
  45 #define LP_SETUP_NEW_FS          0x01
  46 #define LP_SETUP_NEW_CONSTANTS   0x02
  47 #define LP_SETUP_NEW_BLEND_COLOR 0x04
  48
  49
  50 struct lp_scene_queue;
  51
  52
  53 /**
  54  * Point/line/triangle setup context.
  55  * Note: "stored" below indicates data which is stored in the bins,
  56  * not arbitrary malloc'd memory.
  57  *
  58  *
  59  * Subclass of vbuf_render, plugged directly into the draw module as
  60  * the rendering backend.
  61  */
  62 struct setup_context
  63 {
  64    struct vbuf_render base;
  65
  66    struct vertex_info *vertex_info;
  67    uint prim;
  68    uint vertex_size;
  69    uint nr_vertices;
  70    uint vertex_buffer_size;
  71    void *vertex_buffer;
  72
  73    /* Final pipeline stage for draw module.  Draw module should
  74     * create/install this itself now.
  75     */
  76    struct draw_stage *vbuf;
  77    struct lp_rasterizer *rast;
  78    struct lp_scene *scene;               /**< current scene */
  79    struct lp_scene_queue *empty_scenes;  /**< queue of empty scenes */
  80
  81    boolean flatshade_first;
  82    boolean ccw_is_frontface;
  83    unsigned cullmode;
  84
  85    struct pipe_framebuffer_state fb;
  86
  87    struct {
  88       unsigned flags;
  89       union lp_rast_cmd_arg color;    /**< lp_rast_clear_color() cmd */
  90       union lp_rast_cmd_arg zstencil; /**< lp_rast_clear_zstencil() cmd */
  91    } clear;
  92
  93    enum {
  94       SETUP_FLUSHED,
  95       SETUP_CLEARED,
  96       SETUP_ACTIVE
  97    } state;
  98
  99    struct {
 100       struct lp_shader_input input[PIPE_MAX_ATTRIBS];
 101       unsigned nr_inputs;
 102
 103       const struct lp_rast_state *stored; /**< what's in the scene */
 104       struct lp_rast_state current;  /**< currently set state */
 105    } fs;
 106
 107    /** fragment shader constants */
 108    struct {
 109       struct pipe_buffer *current;
 110       unsigned stored_size;
 111       const void *stored_data;
 112    } constants;
 113
 114    struct {
 115       struct pipe_blend_color current;
 116       uint8_t *stored;
 117    } blend_color;
 118
 119    unsigned dirty;   /**< bitmask of LP_SETUP_x bits */
 120
 121    void (*point)( struct setup_context *,
 122                   const float (*v0)[4]);
 123
 124    void (*line)( struct setup_context *,
 125                  const float (*v0)[4],
 126                  const float (*v1)[4]);
 127
 128    void (*triangle)( struct setup_context *,
 129                      const float (*v0)[4],
 130                      const float (*v1)[4],
 131                      const float (*v2)[4]);
 132 };
 133
 134 void lp_setup_choose_triangle( struct setup_context *setup );
 135 void lp_setup_choose_line( struct setup_context *setup );
 136 void lp_setup_choose_point( struct setup_context *setup );
 137
 138 struct lp_scene *lp_setup_get_current_scene(struct setup_context *setup);
 139
 140 void lp_setup_init_vbuf(struct setup_context *setup);
 141
 142 void lp_setup_update_state( struct setup_context *setup );
 143
 144 #endif