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 #include "lp_bld_interp.h"      /* for struct lp_shader_input */
  43
  44 #include "draw/draw_vbuf.h"
  45 #include "util/u_rect.h"
  46
  47 #define LP_SETUP_NEW_FS          0x01
  48 #define LP_SETUP_NEW_CONSTANTS   0x02
  49 #define LP_SETUP_NEW_BLEND_COLOR 0x04
  50 #define LP_SETUP_NEW_SCISSOR     0x08
  51
  52
  53 struct lp_setup_variant;
  54
  55
  56 /** Max number of scenes */
  57 #define MAX_SCENES 2
  58
  59
  60
  61 /**
  62  * Point/line/triangle setup context.
  63  * Note: "stored" below indicates data which is stored in the bins,
  64  * not arbitrary malloc'd memory.
  65  *
  66  *
  67  * Subclass of vbuf_render, plugged directly into the draw module as
  68  * the rendering backend.
  69  */
  70 struct lp_setup_context
  71 {
  72    struct vbuf_render base;
  73
  74    struct pipe_context *pipe;
  75    struct vertex_info *vertex_info;
  76    uint prim;
  77    uint vertex_size;
  78    uint nr_vertices;
  79    uint sprite_coord_enable, sprite_coord_origin;
  80    uint vertex_buffer_size;
  81    void *vertex_buffer;
  82
  83    /* Final pipeline stage for draw module.  Draw module should
  84     * create/install this itself now.
  85     */
  86    struct draw_stage *vbuf;
  87    unsigned num_threads;
  88    unsigned scene_idx;
  89    struct lp_scene *scenes[MAX_SCENES];  /**< all the scenes */
  90    struct lp_scene *scene;               /**< current scene being built */
  91
  92    struct lp_fence *last_fence;
  93    struct llvmpipe_query *active_query;
  94
  95    boolean flatshade_first;
  96    boolean ccw_is_frontface;
  97    boolean scissor_test;
  98    boolean point_size_per_vertex;
  99    unsigned cullmode;
 100    float pixel_offset;
 101    float line_width;
 102    float point_size;
 103    float psize;
 104
 105    struct pipe_framebuffer_state fb;
 106    struct u_rect framebuffer;
 107    struct u_rect scissor;
 108    struct u_rect draw_region;   /* intersection of fb & scissor */
 109
 110    struct {
 111       unsigned flags;
 112       union lp_rast_cmd_arg color;    /**< lp_rast_clear_color() cmd */
 113       unsigned zsmask;
 114       unsigned zsvalue;               /**< lp_rast_clear_zstencil() cmd */
 115    } clear;
 116
 117    enum setup_state {
 118       SETUP_FLUSHED,    /**< scene is null */
 119       SETUP_CLEARED,    /**< scene exists but has only clears */
 120       SETUP_ACTIVE      /**< scene exists and has at least one draw/query */
 121    } state;
 122
 123    struct {
 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    struct {
 143       const struct lp_setup_variant *variant;
 144    } setup;
 145
 146    unsigned dirty;   /**< bitmask of LP_SETUP_NEW_x bits */
 147
 148    void (*point)( struct lp_setup_context *,
 149                   const float (*v0)[4]);
 150
 151    void (*line)( struct lp_setup_context *,
 152                  const float (*v0)[4],
 153                  const float (*v1)[4]);
 154
 155    void (*triangle)( struct lp_setup_context *,
 156                      const float (*v0)[4],
 157                      const float (*v1)[4],
 158                      const float (*v2)[4]);
 159 };
 160
 161 void lp_setup_choose_triangle( struct lp_setup_context *setup );
 162 void lp_setup_choose_line( struct lp_setup_context *setup );
 163 void lp_setup_choose_point( struct lp_setup_context *setup );
 164
 165 void lp_setup_init_vbuf(struct lp_setup_context *setup);
 166
 167 boolean lp_setup_update_state( struct lp_setup_context *setup,
 168                             boolean update_scene);
 169
 170 void lp_setup_destroy( struct lp_setup_context *setup );
 171
 172 boolean lp_setup_flush_and_restart(struct lp_setup_context *setup);
 173
 174 void
 175 lp_setup_print_triangle(struct lp_setup_context *setup,
 176                         const float (*v0)[4],
 177                         const float (*v1)[4],
 178                         const float (*v2)[4]);
 179
 180 void
 181 lp_setup_print_vertex(struct lp_setup_context *setup,
 182                       const char *name,
 183                       const float (*v)[4]);
 184
 185
 186 struct lp_rast_triangle *
 187 lp_setup_alloc_triangle(struct lp_scene *scene,
 188                         unsigned num_inputs,
 189                         unsigned nr_planes,
 190                         unsigned *tri_size);
 191
 192 boolean
 193 lp_setup_bin_triangle( struct lp_setup_context *setup,
 194                        struct lp_rast_triangle *tri,
 195                        const struct u_rect *bbox,
 196                        int nr_planes );
 197
 198 #endif