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    int color_slot:8;
  21    int bcolor_slot:8;
  22    int spec_slot:8;
  23    int bspec_slot:8;
  24    unsigned flatshade_first:1;
  25    unsigned pixel_center_half:1;
  26    unsigned twoside:1;
  27    unsigned floating_point_depth:1;
  28    unsigned pad:4;
  29
  30    /* TODO: get those floats out of the key and use a jit_context for setup */
  31    float pgon_offset_units;
  32    float pgon_offset_scale;
  33    float pgon_offset_clamp;
  34    struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
  35 };
  36
  37
  38 typedef void (*lp_jit_setup_triangle)( const float (*v0)[4],
  39                                        const float (*v1)[4],
  40                                        const float (*v2)[4],
  41                                        boolean front_facing,
  42                                        float (*a0)[4],
  43                                        float (*dadx)[4],
  44                                        float (*dady)[4] );
  45
  46
  47
  48
  49 /* At this stage, for a given variant key, we create a
  50  * draw_vertex_info struct telling the draw module how to format the
  51  * vertices, and an llvm-generated function which calculates the
  52  * attribute interpolants (a0, dadx, dady) from three of those
  53  * vertices.
  54  */
  55 struct lp_setup_variant {
  56    struct lp_setup_variant_key key;
  57
  58    struct lp_setup_variant_list_item list_item_global;
  59
  60    struct gallivm_state *gallivm;
  61
  62    /* XXX: this is a pointer to the LLVM IR.  Once jit_function is
  63     * generated, we never need to use the IR again - need to find a
  64     * way to release this data without destroying the generated
  65     * assembly.
  66     */
  67    LLVMValueRef function;
  68
  69    /* The actual generated setup function:
  70     */
  71    lp_jit_setup_triangle jit_function;
  72
  73    unsigned no;
  74 };
  75
  76 void lp_delete_setup_variants(struct llvmpipe_context *lp);
  77
  78 void
  79 lp_dump_setup_coef( const struct lp_setup_variant_key *key,
  80                     const float (*sa0)[4],
  81                     const float (*sdadx)[4],
  82                     const float (*sdady)[4]);
  83
  84 #endif