| /************************************************************************** |
| * |
| * Copyright 2003 VMware, Inc. |
| * 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, 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 VMWARE 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 I915_FPC_H |
| #define I915_FPC_H |
| |
| #include "i915_context.h" |
| #include "i915_reg.h" |
| |
| #include "pipe/p_shader_tokens.h" |
| |
| #include "tgsi/tgsi_parse.h" |
| |
| struct nir_shader; |
| |
| #define I915_PROGRAM_SIZE 192 |
| |
| /** |
| * Program translation state |
| */ |
| struct i915_fp_compile { |
| struct i915_fragment_shader *shader; /* the shader we're compiling */ |
| |
| bool used_constants[I915_MAX_CONSTANT]; |
| |
| /** maps TGSI immediate index to constant slot */ |
| uint32_t num_immediates; |
| uint32_t immediates_map[I915_MAX_CONSTANT]; |
| float immediates[I915_MAX_CONSTANT][4]; |
| |
| bool first_instruction; |
| |
| uint32_t declarations[I915_PROGRAM_SIZE]; |
| uint32_t program[I915_PROGRAM_SIZE]; |
| |
| uint32_t *csr; /**< Cursor, points into program. */ |
| |
| uint32_t *decl; /**< Cursor, points into declarations. */ |
| |
| uint32_t decl_s; /**< flags for which s regs need to be decl'd */ |
| uint32_t decl_t; /**< flags for which t regs need to be decl'd */ |
| |
| uint32_t temp_flag; /**< Tracks temporary regs which are in use */ |
| uint32_t utemp_flag; /**< Tracks TYPE_U temporary regs which are in use */ |
| |
| uint32_t register_phases[I915_MAX_TEMPORARY]; |
| uint32_t nr_tex_indirect; |
| uint32_t nr_tex_insn; |
| uint32_t nr_alu_insn; |
| uint32_t nr_decl_insn; |
| |
| bool log_program_errors; |
| bool error; /**< Set if i915_program_error() is called */ |
| uint32_t NumNativeInstructions; |
| uint32_t NumNativeAluInstructions; |
| uint32_t NumNativeTexInstructions; |
| uint32_t NumNativeTexIndirections; |
| }; |
| |
| /* Having zero and one in here makes the definition of swizzle a lot |
| * easier. |
| */ |
| #define UREG_TYPE_SHIFT 29 |
| #define UREG_NR_SHIFT 24 |
| #define UREG_CHANNEL_X_NEGATE_SHIFT 23 |
| #define UREG_CHANNEL_X_SHIFT 20 |
| #define UREG_CHANNEL_Y_NEGATE_SHIFT 19 |
| #define UREG_CHANNEL_Y_SHIFT 16 |
| #define UREG_CHANNEL_Z_NEGATE_SHIFT 15 |
| #define UREG_CHANNEL_Z_SHIFT 12 |
| #define UREG_CHANNEL_W_NEGATE_SHIFT 11 |
| #define UREG_CHANNEL_W_SHIFT 8 |
| #define UREG_CHANNEL_ZERO_NEGATE_MBZ 5 |
| #define UREG_CHANNEL_ZERO_SHIFT 4 |
| #define UREG_CHANNEL_ONE_NEGATE_MBZ 1 |
| #define UREG_CHANNEL_ONE_SHIFT 0 |
| |
| #define UREG_BAD 0xffffffff /* not a valid ureg */ |
| |
| #define X SRC_X |
| #define Y SRC_Y |
| #define Z SRC_Z |
| #define W SRC_W |
| #define ZERO SRC_ZERO |
| #define ONE SRC_ONE |
| |
| /* Construct a ureg: |
| */ |
| #define UREG(type, nr) \ |
| (((type) << UREG_TYPE_SHIFT) | ((nr) << UREG_NR_SHIFT) | \ |
| (X << UREG_CHANNEL_X_SHIFT) | (Y << UREG_CHANNEL_Y_SHIFT) | \ |
| (Z << UREG_CHANNEL_Z_SHIFT) | (W << UREG_CHANNEL_W_SHIFT) | \ |
| (ZERO << UREG_CHANNEL_ZERO_SHIFT) | (ONE << UREG_CHANNEL_ONE_SHIFT)) |
| |
| #define GET_CHANNEL_SRC(reg, channel) ((reg << (channel * 4)) & (0xf << 20)) |
| #define CHANNEL_SRC(src, channel) (src >> (channel * 4)) |
| |
| #define GET_UREG_TYPE(reg) (((reg) >> UREG_TYPE_SHIFT) & REG_TYPE_MASK) |
| #define GET_UREG_NR(reg) (((reg) >> UREG_NR_SHIFT) & REG_NR_MASK) |
| |
| #define UREG_XYZW_CHANNEL_MASK 0x00ffff00 |
| |
| /* One neat thing about the UREG representation: |
| */ |
| static inline int |
| swizzle(int reg, uint32_t x, uint32_t y, uint32_t z, uint32_t w) |
| { |
| assert(x <= SRC_ONE); |
| assert(y <= SRC_ONE); |
| assert(z <= SRC_ONE); |
| assert(w <= SRC_ONE); |
| return ((reg & ~UREG_XYZW_CHANNEL_MASK) | |
| CHANNEL_SRC(GET_CHANNEL_SRC(reg, x), 0) | |
| CHANNEL_SRC(GET_CHANNEL_SRC(reg, y), 1) | |
| CHANNEL_SRC(GET_CHANNEL_SRC(reg, z), 2) | |
| CHANNEL_SRC(GET_CHANNEL_SRC(reg, w), 3)); |
| } |
| |
| #define A0_DEST(reg) (((reg)&UREG_TYPE_NR_MASK) >> UREG_A0_DEST_SHIFT_LEFT) |
| #define D0_DEST(reg) (((reg)&UREG_TYPE_NR_MASK) >> UREG_A0_DEST_SHIFT_LEFT) |
| #define T0_DEST(reg) (((reg)&UREG_TYPE_NR_MASK) >> UREG_A0_DEST_SHIFT_LEFT) |
| #define A0_SRC0(reg) (((reg)&UREG_MASK) >> UREG_A0_SRC0_SHIFT_LEFT) |
| #define A1_SRC0(reg) (((reg)&UREG_MASK) << UREG_A1_SRC0_SHIFT_RIGHT) |
| #define A1_SRC1(reg) (((reg)&UREG_MASK) >> UREG_A1_SRC1_SHIFT_LEFT) |
| #define A2_SRC1(reg) (((reg)&UREG_MASK) << UREG_A2_SRC1_SHIFT_RIGHT) |
| #define A2_SRC2(reg) (((reg)&UREG_MASK) >> UREG_A2_SRC2_SHIFT_LEFT) |
| |
| /* These are special, and don't have swizzle/negate bits. |
| */ |
| #define T0_SAMPLER(reg) (GET_UREG_NR(reg) << T0_SAMPLER_NR_SHIFT) |
| #define T1_ADDRESS_REG(reg) \ |
| ((GET_UREG_NR(reg) << T1_ADDRESS_REG_NR_SHIFT) | \ |
| (GET_UREG_TYPE(reg) << T1_ADDRESS_REG_TYPE_SHIFT)) |
| |
| /* Macros for translating UREG's into the various register fields used |
| * by the I915 programmable unit. |
| */ |
| #define UREG_A0_DEST_SHIFT_LEFT (UREG_TYPE_SHIFT - A0_DEST_TYPE_SHIFT) |
| #define UREG_A0_SRC0_SHIFT_LEFT (UREG_TYPE_SHIFT - A0_SRC0_TYPE_SHIFT) |
| #define UREG_A1_SRC0_SHIFT_RIGHT \ |
| (A1_SRC0_CHANNEL_W_SHIFT - UREG_CHANNEL_W_SHIFT) |
| #define UREG_A1_SRC1_SHIFT_LEFT (UREG_TYPE_SHIFT - A1_SRC1_TYPE_SHIFT) |
| #define UREG_A2_SRC1_SHIFT_RIGHT \ |
| (A2_SRC1_CHANNEL_W_SHIFT - UREG_CHANNEL_W_SHIFT) |
| #define UREG_A2_SRC2_SHIFT_LEFT (UREG_TYPE_SHIFT - A2_SRC2_TYPE_SHIFT) |
| |
| #define UREG_MASK 0xffffff00 |
| #define UREG_TYPE_NR_MASK \ |
| ((REG_TYPE_MASK << UREG_TYPE_SHIFT) | (REG_NR_MASK << UREG_NR_SHIFT)) |
| |
| /*********************************************************************** |
| * Public interface for the compiler |
| */ |
| extern void i915_translate_fragment_program(struct i915_context *i915, |
| struct i915_fragment_shader *fs); |
| |
| extern uint32_t i915_get_temp(struct i915_fp_compile *p); |
| extern uint32_t i915_get_utemp(struct i915_fp_compile *p); |
| extern void i915_release_utemps(struct i915_fp_compile *p); |
| |
| extern uint32_t i915_emit_texld(struct i915_fp_compile *p, uint32_t dest, |
| uint32_t destmask, uint32_t sampler, |
| uint32_t coord, uint32_t op, |
| uint32_t coord_mask); |
| |
| extern uint32_t i915_emit_arith(struct i915_fp_compile *p, uint32_t op, |
| uint32_t dest, uint32_t mask, uint32_t saturate, |
| uint32_t src0, uint32_t src1, uint32_t src2); |
| |
| extern uint32_t i915_emit_decl(struct i915_fp_compile *p, uint32_t type, |
| uint32_t nr, uint32_t d0_flags); |
| |
| extern uint32_t i915_emit_const1f(struct i915_fp_compile *p, float c0); |
| |
| extern uint32_t i915_emit_const2f(struct i915_fp_compile *p, float c0, |
| float c1); |
| |
| extern uint32_t i915_emit_const4fv(struct i915_fp_compile *p, const float *c); |
| |
| extern uint32_t i915_emit_const4f(struct i915_fp_compile *p, float c0, float c1, |
| float c2, float c3); |
| |
| /*====================================================================== |
| * i915_fpc_translate.c |
| */ |
| |
| extern void i915_program_error(struct i915_fp_compile *p, const char *msg, ...); |
| |
| /*====================================================================== |
| * i915_fpc_optimize.c |
| */ |
| |
| struct i915_src_register { |
| unsigned File : 4; /* TGSI_FILE_ */ |
| unsigned Indirect : 1; /* BOOL */ |
| unsigned Dimension : 1; /* BOOL */ |
| int Index : 16; /* SINT */ |
| unsigned SwizzleX : 3; /* TGSI_SWIZZLE_ */ |
| unsigned SwizzleY : 3; /* TGSI_SWIZZLE_ */ |
| unsigned SwizzleZ : 3; /* TGSI_SWIZZLE_ */ |
| unsigned SwizzleW : 3; /* TGSI_SWIZZLE_ */ |
| unsigned Absolute : 1; /* BOOL */ |
| unsigned Negate : 1; /* BOOL */ |
| }; |
| |
| /* Additional swizzle supported in i915 */ |
| #define TGSI_SWIZZLE_ZERO 4 |
| #define TGSI_SWIZZLE_ONE 5 |
| |
| struct i915_dst_register { |
| unsigned File : 4; /* TGSI_FILE_ */ |
| unsigned WriteMask : 4; /* TGSI_WRITEMASK_ */ |
| unsigned Indirect : 1; /* BOOL */ |
| unsigned Dimension : 1; /* BOOL */ |
| int Index : 16; /* SINT */ |
| unsigned Padding : 6; |
| }; |
| |
| struct i915_full_dst_register { |
| struct i915_dst_register Register; |
| /* |
| struct tgsi_ind_register Indirect; |
| struct tgsi_dimension Dimension; |
| struct tgsi_ind_register DimIndirect; |
| */ |
| }; |
| |
| struct i915_full_src_register { |
| struct i915_src_register Register; |
| /* |
| struct tgsi_ind_register Indirect; |
| struct tgsi_dimension Dimension; |
| struct tgsi_ind_register DimIndirect; |
| */ |
| }; |
| |
| struct i915_full_instruction { |
| struct tgsi_instruction Instruction; |
| /* |
| struct tgsi_instruction_label Label; |
| */ |
| struct tgsi_instruction_texture Texture; |
| struct i915_full_dst_register Dst[1]; |
| struct i915_full_src_register Src[3]; |
| }; |
| |
| union i915_full_token { |
| struct tgsi_token Token; |
| struct tgsi_full_declaration FullDeclaration; |
| struct tgsi_full_immediate FullImmediate; |
| struct i915_full_instruction FullInstruction; |
| struct tgsi_full_property FullProperty; |
| }; |
| |
| struct i915_token_list { |
| union i915_full_token *Tokens; |
| unsigned NumTokens; |
| }; |
| |
| extern struct i915_token_list *i915_optimize(const struct tgsi_token *tokens); |
| |
| extern void i915_optimize_free(struct i915_token_list *tokens); |
| |
| extern uint32_t i915_coord_mask(enum tgsi_opcode opcode, enum tgsi_texture_type tex); |
| |
| #endif |
