src/gallium/drivers/llvmpipe/lp_state_setup.h

   1 #ifndef LP_STATE_SETUP_H
   2 #define LP_STATE_SETUP_H
   3
   4 #include "lp_bld_interp.h"
   5
   6
   7 struct llvmpipe_context;
   8 struct lp_setup_variant;
   9
  10 struct lp_setup_variant_list_item
  11 {
  12    struct lp_setup_variant *base;
  13    struct lp_setup_variant_list_item *next, *prev;
  14 };
  15
  16
  17 struct lp_setup_variant_key {
  18    unsigned size:16;
  19    unsigned num_inputs:8;
  20    unsigned color_slot:8;
  21
  22    unsigned bcolor_slot:8;
  23    unsigned spec_slot:8;
  24    unsigned bspec_slot:8;
  25    unsigned flatshade_first:1;
  26    unsigned pixel_center_half:1;
  27    unsigned twoside:1;
  28    unsigned pad:5;
  29
  30    float units;
  31    float scale;
  32    struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
  33 };
  34
  35
  36 typedef void (*lp_jit_setup_triangle)( const float (*v0)[4],
  37                                        const float (*v1)[4],
  38                                        const float (*v2)[4],
  39                                        boolean front_facing,
  40                                        float (*a0)[4],
  41                                        float (*dadx)[4],
  42                                        float (*dady)[4] );
  43
  44
  45
  46
  47 /* At this stage, for a given variant key, we create a
  48  * draw_vertex_info struct telling the draw module how to format the
  49  * vertices, and an llvm-generated function which calculates the
  50  * attribute interpolants (a0, dadx, dady) from three of those
  51  * vertices.
  52  */
  53 struct lp_setup_variant {
  54    struct lp_setup_variant_key key;
  55
  56    struct lp_setup_variant_list_item list_item_global;
  57
  58    /* XXX: this is a pointer to the LLVM IR.  Once jit_function is
  59     * generated, we never need to use the IR again - need to find a
  60     * way to release this data without destroying the generated
  61     * assembly.
  62     */
  63    LLVMValueRef function;
  64
  65    /* The actual generated setup function:
  66     */
  67    lp_jit_setup_triangle jit_function;
  68
  69    unsigned no;
  70 };
  71
  72 void lp_setup_tri_fallback( const float (*v0)[4],
  73                             const float (*v1)[4],
  74                             const float (*v2)[4],
  75                             boolean front_facing,
  76                             float (*a0)[4],
  77                             float (*dadx)[4],
  78                             float (*dady)[4],
  79                             const struct lp_setup_variant_key *key );
  80
  81 void lp_delete_setup_variants(struct llvmpipe_context *lp);
  82
  83 void
  84 lp_dump_setup_coef( const struct lp_setup_variant_key *key,
  85                     const float (*sa0)[4],
  86                     const float (*sdadx)[4],
  87                     const float (*sdady)[4]);
  88
  89 #endif