diff options
Diffstat (limited to 'src/gallium/drivers/r300/compiler/radeon_program.h')
| -rw-r--r-- | src/gallium/drivers/r300/compiler/radeon_program.h | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/compiler/radeon_program.h b/src/gallium/drivers/r300/compiler/radeon_program.h new file mode 100644 index 00000000000..b899eccbf53 --- /dev/null +++ b/src/gallium/drivers/r300/compiler/radeon_program.h @@ -0,0 +1,206 @@ +/* + * Copyright (C) 2008 Nicolai Haehnle. + * + * All Rights Reserved. + * + * 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, sublicense, 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 NONINFRINGEMENT. + * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS 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. + * + */ + +#ifndef __RADEON_PROGRAM_H_ +#define __RADEON_PROGRAM_H_ + +#include <stdint.h> +#include <string.h> + +#include "radeon_opcodes.h" +#include "radeon_code.h" +#include "radeon_program_constants.h" +#include "radeon_program_pair.h" + +struct radeon_compiler; + +struct rc_src_register { + unsigned int File:4; + + /** Negative values may be used for relative addressing. */ + signed int Index:(RC_REGISTER_INDEX_BITS+1); + unsigned int RelAddr:1; + + unsigned int Swizzle:12; + + /** Take the component-wise absolute value */ + unsigned int Abs:1; + + /** Post-Abs negation. */ + unsigned int Negate:4; +}; + +struct rc_dst_register { + unsigned int File:3; + unsigned int Index:RC_REGISTER_INDEX_BITS; + unsigned int WriteMask:4; +}; + +struct rc_presub_instruction { + rc_presubtract_op Opcode; + struct rc_src_register SrcReg[2]; +}; + +/** + * Instructions are maintained by the compiler in a doubly linked list + * of these structures. + * + * This instruction format is intended to be expanded for hardware-specific + * trickery. At different stages of compilation, a different set of + * instruction types may be valid. + */ +struct rc_sub_instruction { + struct rc_src_register SrcReg[3]; + struct rc_dst_register DstReg; + + /** + * Opcode of this instruction, according to \ref rc_opcode enums. + */ + unsigned int Opcode:8; + + /** + * Saturate each value of the result to the range [0,1] or [-1,1], + * according to \ref rc_saturate_mode enums. + */ + unsigned int SaturateMode:2; + + /** + * Writing to the special register RC_SPECIAL_ALU_RESULT + */ + /*@{*/ + unsigned int WriteALUResult:2; + unsigned int ALUResultCompare:3; + /*@}*/ + + /** + * \name Extra fields for TEX, TXB, TXD, TXL, TXP instructions. + */ + /*@{*/ + /** Source texture unit. */ + unsigned int TexSrcUnit:5; + + /** Source texture target, one of the \ref rc_texture_target enums */ + unsigned int TexSrcTarget:3; + + /** True if tex instruction should do shadow comparison */ + unsigned int TexShadow:1; + + /**R500 Only. How to swizzle the result of a TEX lookup*/ + unsigned int TexSwizzle:12; + /*@}*/ + + /** This holds information about the presubtract operation used by + * this instruction. */ + struct rc_presub_instruction PreSub; +}; + +typedef enum { + RC_INSTRUCTION_NORMAL = 0, + RC_INSTRUCTION_PAIR +} rc_instruction_type; + +struct rc_instruction { + struct rc_instruction * Prev; + struct rc_instruction * Next; + + rc_instruction_type Type; + union { + struct rc_sub_instruction I; + struct rc_pair_instruction P; + } U; + + /** + * Warning: IPs are not stable. If you want to use them, + * you need to recompute them at the beginning of each pass + * using \ref rc_recompute_ips + */ + unsigned int IP; +}; + +struct rc_program { + /** + * Instructions.Next points to the first instruction, + * Instructions.Prev points to the last instruction. + */ + struct rc_instruction Instructions; + + /* Long term, we should probably remove InputsRead & OutputsWritten, + * since updating dependent state can be fragile, and they aren't + * actually used very often. */ + uint32_t InputsRead; + uint32_t OutputsWritten; + uint32_t ShadowSamplers; /**< Texture units used for shadow sampling. */ + + struct rc_constant_list Constants; +}; + +/** + * A transformation that can be passed to \ref rc_local_transform. + * + * The function will be called once for each instruction. + * It has to either emit the appropriate transformed code for the instruction + * and return true, or return false if it doesn't understand the + * instruction. + * + * The function gets passed the userData as last parameter. + */ +struct radeon_program_transformation { + int (*function)( + struct radeon_compiler*, + struct rc_instruction*, + void*); + void *userData; +}; + +void rc_local_transform( + struct radeon_compiler *c, + void *user); + +void rc_get_used_temporaries( + struct radeon_compiler * c, + unsigned char * used, + unsigned int used_length); + +int rc_find_free_temporary_list( + struct radeon_compiler * c, + unsigned char * used, + unsigned int used_length, + unsigned int mask); + +unsigned int rc_find_free_temporary(struct radeon_compiler * c); + +struct rc_instruction *rc_alloc_instruction(struct radeon_compiler * c); +struct rc_instruction *rc_insert_new_instruction(struct radeon_compiler * c, struct rc_instruction * after); +void rc_insert_instruction(struct rc_instruction * after, struct rc_instruction * inst); +void rc_remove_instruction(struct rc_instruction * inst); + +unsigned int rc_recompute_ips(struct radeon_compiler * c); + +void rc_print_program(const struct rc_program *prog); + +rc_swizzle rc_mask_to_swizzle(unsigned int mask); +#endif |