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_scene.h"
  41 #include "lp_bld_interp.h"      /* for struct lp_shader_input */
  42
  43 #include "draw/draw_vbuf.h"
  44 #include "util/u_rect.h"
  45 #include "util/u_pack_color.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 #define LP_SETUP_NEW_VIEWPORTS   0x10
  52
  53
  54 struct lp_setup_variant;
  55
  56
  57 /** Max number of scenes */
  58 #define MAX_SCENES 2
  59
  60
  61
  62 /**
  63  * Point/line/triangle setup context.
  64  * Note: "stored" below indicates data which is stored in the bins,
  65  * not arbitrary malloc'd memory.
  66  *
  67  *
  68  * Subclass of vbuf_render, plugged directly into the draw module as
  69  * the rendering backend.
  70  */
  71 struct lp_setup_context
  72 {
  73    struct vbuf_render base;
  74
  75    struct pipe_context *pipe;
  76    struct vertex_info *vertex_info;
  77    uint prim;
  78    uint vertex_size;
  79    uint nr_vertices;
  80    uint sprite_coord_enable, sprite_coord_origin;
  81    uint vertex_buffer_size;
  82    void *vertex_buffer;
  83
  84    /* Final pipeline stage for draw module.  Draw module should
  85     * create/install this itself now.
  86     */
  87    struct draw_stage *vbuf;
  88    unsigned num_threads;
  89    unsigned scene_idx;
  90    struct lp_scene *scenes[MAX_SCENES];  /**< all the scenes */
  91    struct lp_scene *scene;               /**< current scene being built */
  92
  93    struct lp_fence *last_fence;
  94    struct llvmpipe_query *active_queries[LP_MAX_ACTIVE_BINNED_QUERIES];
  95    unsigned active_binned_queries;
  96
  97    boolean flatshade_first;
  98    boolean ccw_is_frontface;
  99    boolean scissor_test;
 100    boolean point_size_per_vertex;
 101    boolean rasterizer_discard;
 102    unsigned cullmode;
 103    unsigned bottom_edge_rule;
 104    float pixel_offset;
 105    float line_width;
 106    float point_size;
 107    float psize;
 108    unsigned viewport_index_slot;
 109    unsigned layer_slot;
 110    int face_slot;
 111
 112    struct pipe_framebuffer_state fb;
 113    struct u_rect framebuffer;
 114    struct u_rect scissors[PIPE_MAX_VIEWPORTS];
 115    struct u_rect draw_regions[PIPE_MAX_VIEWPORTS];   /* intersection of fb & scissor */
 116    struct lp_jit_viewport viewports[PIPE_MAX_VIEWPORTS];
 117
 118    struct {
 119       unsigned flags;
 120       union util_color color_val[PIPE_MAX_COLOR_BUFS];
 121       uint64_t zsmask;
 122       uint64_t zsvalue;               /**< lp_rast_clear_zstencil() cmd */
 123    } clear;
 124
 125    enum setup_state {
 126       SETUP_FLUSHED,    /**< scene is null */
 127       SETUP_CLEARED,    /**< scene exists but has only clears */
 128       SETUP_ACTIVE      /**< scene exists and has at least one draw/query */
 129    } state;
 130
 131    struct {
 132       const struct lp_rast_state *stored; /**< what's in the scene */
 133       struct lp_rast_state current;  /**< currently set state */
 134       struct pipe_resource *current_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS];
 135    } fs;
 136
 137    /** fragment shader constants */
 138    struct {
 139       struct pipe_constant_buffer current;
 140       unsigned stored_size;
 141       const void *stored_data;
 142    } constants[LP_MAX_TGSI_CONST_BUFFERS];
 143
 144    struct {
 145       struct pipe_blend_color current;
 146       uint8_t *stored;
 147    } blend_color;
 148
 149
 150    struct {
 151       const struct lp_setup_variant *variant;
 152    } setup;
 153
 154    unsigned dirty;   /**< bitmask of LP_SETUP_NEW_x bits */
 155
 156    void (*point)( struct lp_setup_context *,
 157                   const float (*v0)[4]);
 158
 159    void (*line)( struct lp_setup_context *,
 160                  const float (*v0)[4],
 161                  const float (*v1)[4]);
 162
 163    void (*triangle)( struct lp_setup_context *,
 164                      const float (*v0)[4],
 165                      const float (*v1)[4],
 166                      const float (*v2)[4]);
 167 };
 168
 169 void lp_setup_choose_triangle( struct lp_setup_context *setup );
 170 void lp_setup_choose_line( struct lp_setup_context *setup );
 171 void lp_setup_choose_point( struct lp_setup_context *setup );
 172
 173 void lp_setup_init_vbuf(struct lp_setup_context *setup);
 174
 175 boolean lp_setup_update_state( struct lp_setup_context *setup,
 176                             boolean update_scene);
 177
 178 void lp_setup_destroy( struct lp_setup_context *setup );
 179
 180 boolean lp_setup_flush_and_restart(struct lp_setup_context *setup);
 181
 182 void
 183 lp_setup_print_triangle(struct lp_setup_context *setup,
 184                         const float (*v0)[4],
 185                         const float (*v1)[4],
 186                         const float (*v2)[4]);
 187
 188 void
 189 lp_setup_print_vertex(struct lp_setup_context *setup,
 190                       const char *name,
 191                       const float (*v)[4]);
 192
 193
 194 struct lp_rast_triangle *
 195 lp_setup_alloc_triangle(struct lp_scene *scene,
 196                         unsigned num_inputs,
 197                         unsigned nr_planes,
 198                         unsigned *tri_size);
 199
 200 boolean
 201 lp_setup_bin_triangle( struct lp_setup_context *setup,
 202                        struct lp_rast_triangle *tri,
 203                        const struct u_rect *bbox,
 204                        int nr_planes,
 205                        unsigned scissor_index );
 206
 207 #endif