/* * Copyright © 2014 Broadcom * * 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 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. */ #ifndef VC4_QIR_H #define VC4_QIR_H #include #include #include "util/u_simple_list.h" enum qfile { QFILE_NULL, QFILE_TEMP, QFILE_VARY, QFILE_UNIF, }; struct qreg { enum qfile file; uint32_t index; }; enum qop { QOP_UNDEF, QOP_MOV, QOP_FADD, QOP_FSUB, QOP_FMUL, QOP_FMIN, QOP_FMAX, QOP_FMINABS, QOP_FMAXABS, QOP_SEQ, QOP_SNE, QOP_SGE, QOP_SLT, QOP_CMP, QOP_FTOI, QOP_ITOF, QOP_RCP, QOP_RSQ, QOP_EXP2, QOP_LOG2, QOP_VW_SETUP, QOP_VR_SETUP, QOP_PACK_SCALED, QOP_PACK_COLORS, QOP_VPM_WRITE, QOP_VPM_READ, QOP_TLB_PASSTHROUGH_Z_WRITE, QOP_TLB_COLOR_WRITE, QOP_TLB_COLOR_READ, QOP_VARY_ADD_C, QOP_FRAG_X, QOP_FRAG_Y, QOP_FRAG_Z, QOP_FRAG_RCP_W, /** Texture x coordinate parameter write */ QOP_TEX_S, /** Texture y coordinate parameter write */ QOP_TEX_T, /** Texture border color parameter or cube map z coordinate write */ QOP_TEX_R, /** Texture LOD bias parameter write */ QOP_TEX_B, /** * Signal of texture read being necessary and then reading r4 into * the destination */ QOP_TEX_RESULT, QOP_R4_UNPACK_A, QOP_R4_UNPACK_B, QOP_R4_UNPACK_C, QOP_R4_UNPACK_D }; struct simple_node { struct simple_node *next; struct simple_node *prev; }; struct qinst { struct simple_node link; enum qop op; struct qreg dst; struct qreg *src; }; enum qstage { /** * Coordinate shader, runs during binning, before the VS, and just * outputs position. */ QSTAGE_COORD, QSTAGE_VERT, QSTAGE_FRAG, }; enum quniform_contents { /** * Indicates that a constant 32-bit value is copied from the program's * uniform contents. */ QUNIFORM_CONSTANT, /** * Indicates that the program's uniform contents are used as an index * into the GL uniform storage. */ QUNIFORM_UNIFORM, /** @{ * Scaling factors from clip coordinates to relative to the viewport * center. * * This is used by the coordinate and vertex shaders to produce the * 32-bit entry consisting of 2 16-bit fields with 12.4 signed fixed * point offsets from the viewport ccenter. */ QUNIFORM_VIEWPORT_X_SCALE, QUNIFORM_VIEWPORT_Y_SCALE, /** @} */ QUNIFORM_VIEWPORT_Z_OFFSET, QUNIFORM_VIEWPORT_Z_SCALE, /** * A reference to a texture config parameter 0 uniform. * * This is a uniform implicitly loaded with a QPU_W_TMU* write, which * defines texture type, miplevels, and such. It will be found as a * parameter to the first QOP_TEX_[STRB] instruction in a sequence. */ QUNIFORM_TEXTURE_CONFIG_P0, /** * A reference to a texture config parameter 1 uniform. * * This is a uniform implicitly loaded with a QPU_W_TMU* write, which * defines texture width, height, filters, and wrap modes. It will be * found as a parameter to the second QOP_TEX_[STRB] instruction in a * sequence. */ QUNIFORM_TEXTURE_CONFIG_P1, QUNIFORM_TEXRECT_SCALE_X, QUNIFORM_TEXRECT_SCALE_Y, QUNIFORM_BLEND_CONST_COLOR, }; struct qcompile { struct qreg undef; enum qstage stage; uint32_t num_temps; struct simple_node instructions; uint32_t immediates[1024]; struct simple_node qpu_inst_list; uint64_t *qpu_insts; uint32_t qpu_inst_count; uint32_t qpu_inst_size; uint32_t num_inputs; }; struct qcompile *qir_compile_init(void); void qir_compile_destroy(struct qcompile *c); struct qinst *qir_inst(enum qop op, struct qreg dst, struct qreg src0, struct qreg src1); struct qinst *qir_inst4(enum qop op, struct qreg dst, struct qreg a, struct qreg b, struct qreg c, struct qreg d); void qir_emit(struct qcompile *c, struct qinst *inst); struct qreg qir_get_temp(struct qcompile *c); int qir_get_op_nsrc(enum qop qop); bool qir_reg_equals(struct qreg a, struct qreg b); bool qir_has_side_effects(struct qinst *inst); void qir_dump(struct qcompile *c); void qir_dump_inst(struct qinst *inst); const char *qir_get_stage_name(enum qstage stage); void qir_optimize(struct qcompile *c); bool qir_opt_algebraic(struct qcompile *c); bool qir_opt_copy_propagation(struct qcompile *c); bool qir_opt_dead_code(struct qcompile *c); #define QIR_ALU0(name) \ static inline struct qreg \ qir_##name(struct qcompile *c) \ { \ struct qreg t = qir_get_temp(c); \ qir_emit(c, qir_inst(QOP_##name, t, c->undef, c->undef)); \ return t; \ } #define QIR_ALU1(name) \ static inline struct qreg \ qir_##name(struct qcompile *c, struct qreg a) \ { \ struct qreg t = qir_get_temp(c); \ qir_emit(c, qir_inst(QOP_##name, t, a, c->undef)); \ return t; \ } #define QIR_ALU2(name) \ static inline struct qreg \ qir_##name(struct qcompile *c, struct qreg a, struct qreg b) \ { \ struct qreg t = qir_get_temp(c); \ qir_emit(c, qir_inst(QOP_##name, t, a, b)); \ return t; \ } #define QIR_NODST_1(name) \ static inline void \ qir_##name(struct qcompile *c, struct qreg a) \ { \ qir_emit(c, qir_inst(QOP_##name, c->undef, a, c->undef)); \ } #define QIR_NODST_2(name) \ static inline void \ qir_##name(struct qcompile *c, struct qreg a, struct qreg b) \ { \ qir_emit(c, qir_inst(QOP_##name, c->undef, a, b)); \ } QIR_ALU1(MOV) QIR_ALU2(FADD) QIR_ALU2(FSUB) QIR_ALU2(FMUL) QIR_ALU2(FMIN) QIR_ALU2(FMAX) QIR_ALU2(FMINABS) QIR_ALU2(FMAXABS) QIR_ALU1(FTOI) QIR_ALU1(ITOF) QIR_ALU1(RCP) QIR_ALU1(RSQ) QIR_ALU1(EXP2) QIR_ALU1(LOG2) QIR_ALU2(PACK_SCALED) QIR_ALU1(VARY_ADD_C) QIR_NODST_1(VPM_WRITE) QIR_NODST_2(TEX_S) QIR_NODST_2(TEX_T) QIR_NODST_2(TEX_R) QIR_NODST_2(TEX_B) QIR_ALU0(FRAG_X) QIR_ALU0(FRAG_Y) QIR_ALU0(FRAG_Z) QIR_ALU0(FRAG_RCP_W) static inline struct qreg qir_CMP(struct qcompile *c, struct qreg cmp, struct qreg a, struct qreg b) { struct qreg t = qir_get_temp(c); qir_emit(c, qir_inst4(QOP_CMP, t, cmp, a, b, c->undef)); return t; } static inline struct qreg qir_R4_UNPACK(struct qcompile *c, int i) { struct qreg t = qir_get_temp(c); qir_emit(c, qir_inst(QOP_R4_UNPACK_A + i, t, c->undef, c->undef)); return t; } #endif /* VC4_QIR_H */