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