1 /* 2 * Copyright (c) 2012-2015 Etnaviv Project 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 * the rights to use, copy, modify, merge, publish, distribute, sub license, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the 12 * next paragraph) shall be included in all copies or substantial portions 13 * of the 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 * 23 * Authors: 24 * Wladimir J. van der Laan <laanwj@gmail.com> 25 */ 26 27 #ifndef H_ETNAVIV_COMPILER 28 #define H_ETNAVIV_COMPILER 29 30 #include "etnaviv_context.h" 31 #include "etnaviv_internal.h" 32 #include "pipe/p_compiler.h" 33 #include "pipe/p_shader_tokens.h" 34 35 /* XXX some of these are pretty arbitrary limits, may be better to switch 36 * to dynamic allocation at some point. 37 */ 38 #define ETNA_MAX_TEMPS (64) /* max temp register count of all Vivante hw */ 39 #define ETNA_MAX_TOKENS (2048) 40 #define ETNA_MAX_IMM (1024) /* max const+imm in 32-bit words */ 41 #define ETNA_MAX_DECL (2048) /* max declarations */ 42 #define ETNA_MAX_DEPTH (32) 43 #define ETNA_MAX_INSTRUCTIONS (2048) 44 45 /* compiler output per input/output */ 46 struct etna_shader_inout { 47 int reg; /* native register */ 48 struct tgsi_declaration_semantic semantic; /* tgsi semantic name and index */ 49 int num_components; 50 }; 51 52 struct etna_shader_io_file { 53 size_t num_reg; 54 struct etna_shader_inout reg[ETNA_NUM_INPUTS]; 55 }; 56 57 /* shader object, for linking */ 58 struct etna_shader { 59 uint processor; /* TGSI_PROCESSOR_... */ 60 uint32_t code_size; /* code size in uint32 words */ 61 uint32_t *code; 62 unsigned num_temps; 63 64 struct etna_shader_uniform_info uniforms; 65 66 /* ETNA_DIRTY_* flags that, when set in context dirty, mean that the 67 * uniforms have to get (partial) reloaded. */ 68 uint32_t uniforms_dirty_bits; 69 70 /* inputs (for linking) for fs, the inputs must be in register 1..N */ 71 struct etna_shader_io_file infile; 72 73 /* outputs (for linking) */ 74 struct etna_shader_io_file outfile; 75 76 /* index into outputs (for linking) */ 77 int output_count_per_semantic[TGSI_SEMANTIC_COUNT]; 78 struct etna_shader_inout * *output_per_semantic_list; /* list of pointers to outputs */ 79 struct etna_shader_inout **output_per_semantic[TGSI_SEMANTIC_COUNT]; 80 81 /* special outputs (vs only) */ 82 int vs_pos_out_reg; /* VS position output */ 83 int vs_pointsize_out_reg; /* VS point size output */ 84 uint32_t vs_load_balancing; 85 86 /* special outputs (ps only) */ 87 int ps_color_out_reg; /* color output register */ 88 int ps_depth_out_reg; /* depth output register */ 89 90 /* unknown input property (XX_INPUT_COUNT, field UNK8) */ 91 uint32_t input_count_unk8; 92 }; 93 94 struct etna_varying { 95 uint32_t pa_attributes; 96 uint8_t num_components; 97 uint8_t use[4]; 98 uint8_t reg; 99 }; 100 101 struct etna_shader_link_info { 102 /* each PS input is annotated with the VS output reg */ 103 unsigned num_varyings; 104 struct etna_varying varyings[ETNA_NUM_INPUTS]; 105 }; 106 107 struct etna_shader * 108 etna_compile_shader(const struct etna_specs *specs, const struct tgsi_token *tokens); 109 110 void 111 etna_dump_shader(const struct etna_shader *shader); 112 113 bool 114 etna_link_shader(struct etna_shader_link_info *info, 115 const struct etna_shader *vs, const struct etna_shader *fs); 116 117 void 118 etna_destroy_shader(struct etna_shader *shader); 119 120 #endif 121