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/*
* 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
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