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
  44 #define LP_SETUP_NEW_FS          0x01
  45 #define LP_SETUP_NEW_CONSTANTS   0x02
  46 #define LP_SETUP_NEW_BLEND_COLOR 0x04
  47
  48
  49 struct lp_scene_queue;
  50
  51
  52 /**
  53  * Point/line/triangle setup context.
  54  * Note: "stored" below indicates data which is stored in the bins,
  55  * not arbitrary malloc'd memory.
  56  */
  57 struct setup_context {
  58
  59    struct lp_rasterizer *rast;
  60
  61
  62    struct lp_scene *scene;               /**< current scene */
  63    struct lp_scene_queue *empty_scenes;  /**< queue of empty scenes */
  64
  65    boolean ccw_is_frontface;
  66    unsigned cullmode;
  67
  68    struct pipe_framebuffer_state fb;
  69
  70    struct {
  71       unsigned flags;
  72       union lp_rast_cmd_arg color;    /**< lp_rast_clear_color() cmd */
  73       union lp_rast_cmd_arg zstencil; /**< lp_rast_clear_zstencil() cmd */
  74    } clear;
  75
  76    enum {
  77       SETUP_FLUSHED,
  78       SETUP_CLEARED,
  79       SETUP_ACTIVE
  80    } state;
  81
  82    struct {
  83       struct lp_shader_input input[PIPE_MAX_ATTRIBS];
  84       unsigned nr_inputs;
  85
  86       const struct lp_rast_state *stored; /**< what's in the scene */
  87       struct lp_rast_state current;  /**< currently set state */
  88    } fs;
  89
  90    /** fragment shader constants */
  91    struct {
  92       struct pipe_buffer *current;
  93       unsigned stored_size;
  94       const void *stored_data;
  95    } constants;
  96
  97    struct {
  98       struct pipe_blend_color current;
  99       uint8_t *stored;
 100    } blend_color;
 101
 102    unsigned dirty;   /**< bitmask of LP_SETUP_x bits */
 103
 104    void (*point)( struct setup_context *,
 105                   const float (*v0)[4]);
 106
 107    void (*line)( struct setup_context *,
 108                  const float (*v0)[4],
 109                  const float (*v1)[4]);
 110
 111    void (*triangle)( struct setup_context *,
 112                      const float (*v0)[4],
 113                      const float (*v1)[4],
 114                      const float (*v2)[4]);
 115 };
 116
 117 void lp_setup_choose_triangle( struct setup_context *setup );
 118 void lp_setup_choose_line( struct setup_context *setup );
 119 void lp_setup_choose_point( struct setup_context *setup );
 120
 121 struct lp_scene *lp_setup_get_current_scene(struct setup_context *setup);
 122
 123 #endif