/* * Copyright (c) 2012-2015 Etnaviv Project * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sub license, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. * * Authors: * Wladimir J. van der Laan <laanwj@gmail.com> */ #ifndef H_ETNAVIV_COMPILER #define H_ETNAVIV_COMPILER #include "etnaviv_context.h" #include "etnaviv_internal.h" #include "pipe/p_compiler.h" #include "pipe/p_shader_tokens.h" /* XXX some of these are pretty arbitrary limits, may be better to switch * to dynamic allocation at some point. */ #define ETNA_MAX_TEMPS (64) /* max temp register count of all Vivante hw */ #define ETNA_MAX_TOKENS (2048) #define ETNA_MAX_IMM (1024) /* max const+imm in 32-bit words */ #define ETNA_MAX_DECL (2048) /* max declarations */ #define ETNA_MAX_DEPTH (32) #define ETNA_MAX_INSTRUCTIONS (2048) /* compiler output per input/output */ struct etna_shader_inout { int reg; /* native register */ struct tgsi_declaration_semantic semantic; /* tgsi semantic name and index */ int num_components; }; struct etna_shader_io_file { size_t num_reg; struct etna_shader_inout reg[ETNA_NUM_INPUTS]; }; /* shader object, for linking */ struct etna_shader { uint processor; /* TGSI_PROCESSOR_... */ uint32_t code_size; /* code size in uint32 words */ uint32_t *code; unsigned num_temps; struct etna_shader_uniform_info uniforms; /* ETNA_DIRTY_* flags that, when set in context dirty, mean that the * uniforms have to get (partial) reloaded. */ uint32_t uniforms_dirty_bits; /* inputs (for linking) for fs, the inputs must be in register 1..N */ struct etna_shader_io_file infile; /* outputs (for linking) */ struct etna_shader_io_file outfile; /* index into outputs (for linking) */ int output_count_per_semantic[TGSI_SEMANTIC_COUNT]; struct etna_shader_inout * *output_per_semantic_list; /* list of pointers to outputs */ struct etna_shader_inout **output_per_semantic[TGSI_SEMANTIC_COUNT]; /* special outputs (vs only) */ int vs_pos_out_reg; /* VS position output */ int vs_pointsize_out_reg; /* VS point size output */ uint32_t vs_load_balancing; /* special outputs (ps only) */ int ps_color_out_reg; /* color output register */ int ps_depth_out_reg; /* depth output register */ /* unknown input property (XX_INPUT_COUNT, field UNK8) */ uint32_t input_count_unk8; }; struct etna_varying { uint32_t pa_attributes; uint8_t num_components; uint8_t use[4]; uint8_t reg; }; struct etna_shader_link_info { /* each PS input is annotated with the VS output reg */ unsigned num_varyings; struct etna_varying varyings[ETNA_NUM_INPUTS]; }; struct etna_shader * etna_compile_shader(const struct etna_specs *specs, const struct tgsi_token *tokens); void etna_dump_shader(const struct etna_shader *shader); bool etna_link_shader(struct etna_shader_link_info *info, const struct etna_shader *vs, const struct etna_shader *fs); void etna_destroy_shader(struct etna_shader *shader); #endif