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  1. /*
  2.  * Copyright 2009 Nicolai Hähnle <nhaehnle@gmail.com>
  3.  *
  4.  * Permission is hereby granted, free of charge, to any person obtaining a
  5.  * copy of this software and associated documentation files (the "Software"),
  6.  * to deal in the Software without restriction, including without limitation
  7.  * on the rights to use, copy, modify, merge, publish, distribute, sub
  8.  * license, and/or sell copies of the Software, and to permit persons to whom
  9.  * the Software is furnished to do so, subject to the following conditions:
  10.  *
  11.  * The above copyright notice and this permission notice (including the next
  12.  * paragraph) shall be included in all copies or substantial portions of the
  13.  * Software.
  14.  *
  15.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16.  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17.  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18.  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19.  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20.  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21.  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22.  
  23. #ifndef RADEON_COMPILER_H
  24. #define RADEON_COMPILER_H
  25.  
  26. #include "memory_pool.h"
  27. #include "radeon_code.h"
  28. #include "radeon_program.h"
  29. #include "radeon_emulate_loops.h"
  30.  
  31. #define RC_DBG_LOG        (1 << 0)
  32. #define RC_DBG_STATS      (1 << 1)
  33.  
  34. struct rc_swizzle_caps;
  35.  
  36. enum rc_program_type {
  37.         RC_VERTEX_PROGRAM,
  38.         RC_FRAGMENT_PROGRAM,
  39.         RC_NUM_PROGRAM_TYPES
  40. };
  41.  
  42. struct radeon_compiler {
  43.         struct memory_pool Pool;
  44.         struct rc_program Program;
  45.         const struct rc_regalloc_state *regalloc_state;
  46.         enum rc_program_type type;
  47.         unsigned Debug:2;
  48.         unsigned Error:1;
  49.         char * ErrorMsg;
  50.  
  51.         /* Hardware specification. */
  52.         unsigned is_r400:1;
  53.         unsigned is_r500:1;
  54.         unsigned has_half_swizzles:1;
  55.         unsigned has_presub:1;
  56.         unsigned has_omod:1;
  57.         unsigned disable_optimizations:1;
  58.         unsigned max_temp_regs;
  59.         unsigned max_constants;
  60.         int max_alu_insts;
  61.         unsigned max_tex_insts;
  62.  
  63.         /* Whether to remove unused constants and empty holes in constant space. */
  64.         unsigned remove_unused_constants:1;
  65.  
  66.         /**
  67.          * Variables used internally, not be touched by callers
  68.          * of the compiler
  69.          */
  70.         /*@{*/
  71.         struct rc_swizzle_caps * SwizzleCaps;
  72.         /*@}*/
  73.  
  74.         struct emulate_loop_state loop_state;
  75.  
  76.         unsigned initial_num_insts; /* Number of instructions at start. */
  77. };
  78.  
  79. void rc_init(struct radeon_compiler * c, const struct rc_regalloc_state *rs);
  80. void rc_destroy(struct radeon_compiler * c);
  81.  
  82. void rc_debug(struct radeon_compiler * c, const char * fmt, ...);
  83. void rc_error(struct radeon_compiler * c, const char * fmt, ...);
  84.  
  85. int rc_if_fail_helper(struct radeon_compiler * c, const char * file, int line, const char * assertion);
  86.  
  87. /**
  88.  * This macro acts like an if-statement that can be used to implement
  89.  * non-aborting assertions in the compiler.
  90.  *
  91.  * It checks whether \p cond is true. If not, an internal compiler error is
  92.  * flagged and the if-clause is run.
  93.  *
  94.  * A typical use-case would be:
  95.  *
  96.  *  if (rc_assert(c, condition-that-must-be-true))
  97.  *      return;
  98.  */
  99. #define rc_assert(c, cond) \
  100.         (!(cond) && rc_if_fail_helper(c, __FILE__, __LINE__, #cond))
  101.  
  102. void rc_calculate_inputs_outputs(struct radeon_compiler * c);
  103.  
  104. void rc_move_input(struct radeon_compiler * c, unsigned input, struct rc_src_register new_input);
  105. void rc_move_output(struct radeon_compiler * c, unsigned output, unsigned new_output, unsigned writemask);
  106. void rc_copy_output(struct radeon_compiler * c, unsigned output, unsigned dup_output);
  107. void rc_transform_fragment_wpos(struct radeon_compiler * c, unsigned wpos, unsigned new_input,
  108.                                 int full_vtransform);
  109. void rc_transform_fragment_face(struct radeon_compiler *c, unsigned face);
  110.  
  111. struct r300_fragment_program_compiler {
  112.         struct radeon_compiler Base;
  113.         struct rX00_fragment_program_code *code;
  114.         /* Optional transformations and features. */
  115.         struct r300_fragment_program_external_state state;
  116.         /* Register corresponding to the depthbuffer. */
  117.         unsigned OutputDepth;
  118.         /* Registers corresponding to the four colorbuffers. */
  119.         unsigned OutputColor[4];
  120.  
  121.         void * UserData;
  122.         void (*AllocateHwInputs)(
  123.                 struct r300_fragment_program_compiler * c,
  124.                 void (*allocate)(void * data, unsigned input, unsigned hwreg),
  125.                 void * mydata);
  126. };
  127.  
  128. void r3xx_compile_fragment_program(struct r300_fragment_program_compiler* c);
  129.  
  130. struct r300_vertex_program_compiler {
  131.         struct radeon_compiler Base;
  132.         struct r300_vertex_program_code *code;
  133.         uint32_t RequiredOutputs;
  134.  
  135.         void * UserData;
  136.         void (*SetHwInputOutput)(struct r300_vertex_program_compiler * c);
  137.  
  138. };
  139.  
  140. void r3xx_compile_vertex_program(struct r300_vertex_program_compiler* c);
  141. void rc_vert_fc(struct radeon_compiler *compiler, void *user);
  142. void r300_vertex_program_dump(struct radeon_compiler *compiler, void *user);
  143.  
  144. struct radeon_compiler_pass {
  145.         const char *name;       /* Name of the pass. */
  146.         int dump;               /* Dump the program if Debug == 1? */
  147.         int predicate;          /* Run this pass? */
  148.         void (*run)(struct radeon_compiler *c, void *user); /* The main entrypoint. */
  149.         void *user;             /* Optional parameter which is passed to the run function. */
  150. };
  151.  
  152. struct rc_program_stats {
  153.         unsigned num_insts;
  154.         unsigned num_fc_insts;
  155.         unsigned num_tex_insts;
  156.         unsigned num_rgb_insts;
  157.         unsigned num_alpha_insts;
  158.         unsigned num_presub_ops;
  159.         unsigned num_temp_regs;
  160.         unsigned num_omod_ops;
  161.         unsigned num_inline_literals;
  162. };
  163.  
  164. void rc_get_stats(struct radeon_compiler *c, struct rc_program_stats *s);
  165.  
  166. /* Executes a list of compiler passes given in the parameter 'list'. */
  167. void rc_run_compiler_passes(struct radeon_compiler *c, struct radeon_compiler_pass *list);
  168. void rc_run_compiler(struct radeon_compiler *c, struct radeon_compiler_pass *list);
  169. void rc_validate_final_shader(struct radeon_compiler *c, void *user);
  170.  
  171. #endif /* RADEON_COMPILER_H */
  172.