| /* $Id: x86_cliptest.S,v 1.1.1.1 2012/03/29 17:22:10 uid42307 Exp $ */ |
| |
| /* |
| * Mesa 3-D graphics library |
| * Version: 3.5 |
| * |
| * Copyright (C) 1999-2001 Brian Paul 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 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 |
| * BRIAN PAUL 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. |
| */ |
| |
| /* |
| * NOTE: Avoid using spaces in between '(' ')' and arguments, especially |
| * with macros like CONST, LLBL that expand to CONCAT(...). Putting spaces |
| * in there will break the build on some platforms. |
| */ |
| |
| #include "matypes.h" |
| #include "clip_args.h" |
| |
| #define SRC0 REGOFF(0, ESI) |
| #define SRC1 REGOFF(4, ESI) |
| #define SRC2 REGOFF(8, ESI) |
| #define SRC3 REGOFF(12, ESI) |
| #define DST0 REGOFF(0, EDI) |
| #define DST1 REGOFF(4, EDI) |
| #define DST2 REGOFF(8, EDI) |
| #define DST3 REGOFF(12, EDI) |
| #define MAT0 REGOFF(0, EDX) |
| #define MAT1 REGOFF(4, EDX) |
| #define MAT2 REGOFF(8, EDX) |
| #define MAT3 REGOFF(12, EDX) |
| |
| |
| /* |
| * Table for clip test. |
| * |
| * bit6 = SRC3 < 0 |
| * bit5 = SRC2 < 0 |
| * bit4 = abs(S(2)) > abs(S(3)) |
| * bit3 = SRC1 < 0 |
| * bit2 = abs(S(1)) > abs(S(3)) |
| * bit1 = SRC0 < 0 |
| * bit0 = abs(S(0)) > abs(S(3)) |
| */ |
| |
| SEG_DATA |
| |
| clip_table: |
| D_BYTE 0x00, 0x01, 0x00, 0x02, 0x04, 0x05, 0x04, 0x06 |
| D_BYTE 0x00, 0x01, 0x00, 0x02, 0x08, 0x09, 0x08, 0x0a |
| D_BYTE 0x20, 0x21, 0x20, 0x22, 0x24, 0x25, 0x24, 0x26 |
| D_BYTE 0x20, 0x21, 0x20, 0x22, 0x28, 0x29, 0x28, 0x2a |
| D_BYTE 0x00, 0x01, 0x00, 0x02, 0x04, 0x05, 0x04, 0x06 |
| D_BYTE 0x00, 0x01, 0x00, 0x02, 0x08, 0x09, 0x08, 0x0a |
| D_BYTE 0x10, 0x11, 0x10, 0x12, 0x14, 0x15, 0x14, 0x16 |
| D_BYTE 0x10, 0x11, 0x10, 0x12, 0x18, 0x19, 0x18, 0x1a |
| D_BYTE 0x3f, 0x3d, 0x3f, 0x3e, 0x37, 0x35, 0x37, 0x36 |
| D_BYTE 0x3f, 0x3d, 0x3f, 0x3e, 0x3b, 0x39, 0x3b, 0x3a |
| D_BYTE 0x2f, 0x2d, 0x2f, 0x2e, 0x27, 0x25, 0x27, 0x26 |
| D_BYTE 0x2f, 0x2d, 0x2f, 0x2e, 0x2b, 0x29, 0x2b, 0x2a |
| D_BYTE 0x3f, 0x3d, 0x3f, 0x3e, 0x37, 0x35, 0x37, 0x36 |
| D_BYTE 0x3f, 0x3d, 0x3f, 0x3e, 0x3b, 0x39, 0x3b, 0x3a |
| D_BYTE 0x1f, 0x1d, 0x1f, 0x1e, 0x17, 0x15, 0x17, 0x16 |
| D_BYTE 0x1f, 0x1d, 0x1f, 0x1e, 0x1b, 0x19, 0x1b, 0x1a |
| |
| |
| SEG_TEXT |
| |
| /* |
| * _mesa_x86_cliptest_points4 |
| * |
| * AL: ormask |
| * AH: andmask |
| * EBX: temp0 |
| * ECX: temp1 |
| * EDX: clipmask[] |
| * ESI: clip[] |
| * EDI: proj[] |
| * EBP: temp2 |
| */ |
| |
| #if defined(__ELF__) && defined(__PIC__) && defined(GNU_ASSEMBLER) && !defined(ELFPIC) |
| #define ELFPIC |
| #endif |
| |
| ALIGNTEXT16 |
| GLOBL GLNAME( _mesa_x86_cliptest_points4 ) |
| HIDDEN(_mesa_x86_cliptest_points4) |
| GLNAME( _mesa_x86_cliptest_points4 ): |
| |
| #ifdef ELFPIC |
| #define FRAME_OFFSET 20 |
| #else |
| #define FRAME_OFFSET 16 |
| #endif |
| PUSH_L( ESI ) |
| PUSH_L( EDI ) |
| PUSH_L( EBP ) |
| PUSH_L( EBX ) |
| |
| #ifdef ELFPIC |
| /* store pointer to clip_table on stack */ |
| CALL( LLBL(ctp4_get_eip) ) |
| ADD_L( CONST(_GLOBAL_OFFSET_TABLE_), EBX ) |
| MOV_L( REGOFF(clip_table@GOT, EBX), EBX ) |
| PUSH_L( EBX ) |
| JMP( LLBL(ctp4_clip_table_ready) ) |
| |
| LLBL(ctp4_get_eip): |
| /* store eip in ebx */ |
| MOV_L( REGIND(ESP), EBX ) |
| RET |
| |
| LLBL(ctp4_clip_table_ready): |
| #endif |
| |
| MOV_L( ARG_SOURCE, ESI ) |
| MOV_L( ARG_DEST, EDI ) |
| |
| MOV_L( ARG_CLIP, EDX ) |
| MOV_L( ARG_OR, EBX ) |
| |
| MOV_L( ARG_AND, EBP ) |
| MOV_L( REGOFF(V4F_STRIDE, ESI), EAX ) |
| |
| MOV_L( REGOFF(V4F_COUNT, ESI), ECX ) |
| MOV_L( REGOFF(V4F_START, ESI), ESI ) |
| |
| OR_L( CONST(VEC_SIZE_4), REGOFF(V4F_FLAGS, EDI) ) |
| MOV_L( EAX, ARG_SOURCE ) /* put stride in ARG_SOURCE */ |
| |
| MOV_L( CONST(4), REGOFF(V4F_SIZE, EDI) ) |
| MOV_L( ECX, REGOFF(V4F_COUNT, EDI) ) |
| |
| MOV_L( REGOFF(V4F_START, EDI), EDI ) |
| ADD_L( EDX, ECX ) |
| |
| MOV_L( ECX, ARG_CLIP ) /* put clipmask + count in ARG_CLIP */ |
| CMP_L( ECX, EDX ) |
| |
| MOV_B( REGIND(EBX), AL ) |
| MOV_B( REGIND(EBP), AH ) |
| |
| JZ( LLBL(ctp4_finish) ) |
| |
| ALIGNTEXT16 |
| LLBL(ctp4_top): |
| |
| FLD1 /* F3 */ |
| FDIV_S( SRC3 ) /* GH: don't care about div-by-zero */ |
| |
| MOV_L( SRC3, EBP ) |
| MOV_L( SRC2, EBX ) |
| |
| XOR_L( ECX, ECX ) |
| ADD_L( EBP, EBP ) /* ebp = abs(S(3))*2 ; carry = sign of S(3) */ |
| |
| ADC_L( ECX, ECX ) |
| ADD_L( EBX, EBX ) /* ebx = abs(S(2))*2 ; carry = sign of S(2) */ |
| |
| ADC_L( ECX, ECX ) |
| CMP_L( EBX, EBP ) /* carry = abs(S(2))*2 > abs(S(3))*2 */ |
| |
| ADC_L( ECX, ECX ) |
| MOV_L( SRC1, EBX ) |
| |
| ADD_L( EBX, EBX ) /* ebx = abs(S(1))*2 ; carry = sign of S(1) */ |
| |
| ADC_L( ECX, ECX ) |
| CMP_L( EBX, EBP ) /* carry = abs(S(1))*2 > abs(S(3))*2 */ |
| |
| ADC_L( ECX, ECX ) |
| MOV_L( SRC0, EBX ) |
| |
| ADD_L( EBX, EBX ) /* ebx = abs(S(0))*2 ; carry = sign of S(0) */ |
| |
| ADC_L( ECX, ECX ) |
| CMP_L( EBX, EBP ) /* carry = abs(S(0))*2 > abs(S(3))*2 */ |
| |
| ADC_L( ECX, ECX ) |
| |
| #ifdef ELFPIC |
| MOV_L( REGIND(ESP), EBP ) /* clip_table */ |
| |
| MOV_B( REGBI(EBP, ECX), CL ) |
| #else |
| MOV_B( REGOFF(clip_table,ECX), CL ) |
| #endif |
| |
| OR_B( CL, AL ) |
| AND_B( CL, AH ) |
| |
| TEST_B( CL, CL ) |
| MOV_B( CL, REGIND(EDX) ) |
| |
| JZ( LLBL(ctp4_proj) ) |
| |
| LLBL(ctp4_noproj): |
| |
| FSTP( ST(0) ) /* */ |
| |
| MOV_L( CONST(0), DST0 ) |
| MOV_L( CONST(0), DST1 ) |
| MOV_L( CONST(0), DST2 ) |
| MOV_L( CONST(0x3f800000), DST3 ) |
| |
| JMP( LLBL(ctp4_next) ) |
| |
| LLBL(ctp4_proj): |
| |
| FLD_S( SRC0 ) /* F0 F3 */ |
| FMUL2( ST(1), ST0 ) |
| |
| FLD_S( SRC1 ) /* F1 F0 F3 */ |
| FMUL2( ST(2), ST0 ) |
| |
| FLD_S( SRC2 ) /* F2 F1 F0 F3 */ |
| FMUL2( ST(3), ST0 ) |
| |
| FXCH( ST(2) ) /* F0 F1 F2 F3 */ |
| FSTP_S( DST0 ) /* F1 F2 F3 */ |
| FSTP_S( DST1 ) /* F2 F3 */ |
| FSTP_S( DST2 ) /* F3 */ |
| FSTP_S( DST3 ) /* */ |
| |
| LLBL(ctp4_next): |
| |
| INC_L( EDX ) |
| ADD_L( CONST(16), EDI ) |
| |
| ADD_L( ARG_SOURCE, ESI ) |
| CMP_L( EDX, ARG_CLIP ) |
| |
| JNZ( LLBL(ctp4_top) ) |
| |
| MOV_L( ARG_OR, ECX ) |
| MOV_L( ARG_AND, EDX ) |
| |
| MOV_B( AL, REGIND(ECX) ) |
| MOV_B( AH, REGIND(EDX) ) |
| |
| LLBL(ctp4_finish): |
| |
| MOV_L( ARG_DEST, EAX ) |
| #ifdef ELFPIC |
| POP_L( ESI ) /* discard ptr to clip_table */ |
| #endif |
| POP_L( EBX ) |
| POP_L( EBP ) |
| POP_L( EDI ) |
| POP_L( ESI ) |
| |
| RET |
| |
| |
| |
| |
| |
| |
| |
| ALIGNTEXT16 |
| GLOBL GLNAME( _mesa_x86_cliptest_points4_np ) |
| HIDDEN(_mesa_x86_cliptest_points4_np) |
| GLNAME( _mesa_x86_cliptest_points4_np ): |
| |
| #ifdef ELFPIC |
| #define FRAME_OFFSET 20 |
| #else |
| #define FRAME_OFFSET 16 |
| #endif |
| PUSH_L( ESI ) |
| PUSH_L( EDI ) |
| PUSH_L( EBP ) |
| PUSH_L( EBX ) |
| |
| #ifdef ELFPIC |
| /* store pointer to clip_table on stack */ |
| CALL( LLBL(ctp4_np_get_eip) ) |
| ADD_L( CONST(_GLOBAL_OFFSET_TABLE_), EBX ) |
| MOV_L( REGOFF(clip_table@GOT, EBX), EBX ) |
| PUSH_L( EBX ) |
| JMP( LLBL(ctp4_np_clip_table_ready) ) |
| |
| LLBL(ctp4_np_get_eip): |
| /* store eip in ebx */ |
| MOV_L( REGIND(ESP), EBX ) |
| RET |
| |
| LLBL(ctp4_np_clip_table_ready): |
| #endif |
| |
| MOV_L( ARG_SOURCE, ESI ) |
| /* slot */ |
| |
| MOV_L( ARG_CLIP, EDX ) |
| MOV_L( ARG_OR, EBX ) |
| |
| MOV_L( ARG_AND, EBP ) |
| MOV_L( REGOFF(V4F_STRIDE, ESI), EAX ) |
| |
| MOV_L( REGOFF(V4F_COUNT, ESI), ECX ) |
| MOV_L( REGOFF(V4F_START, ESI), ESI ) |
| |
| MOV_L( EAX, ARG_DEST ) /* put stride in ARG_DEST */ |
| ADD_L( EDX, ECX ) |
| |
| MOV_L( ECX, EDI ) /* put clipmask + count in EDI */ |
| CMP_L( ECX, EDX ) |
| |
| MOV_B( REGIND(EBX), AL ) |
| MOV_B( REGIND(EBP), AH ) |
| |
| JZ( LLBL(ctp4_np_finish) ) |
| |
| ALIGNTEXT16 |
| LLBL(ctp4_np_top): |
| |
| MOV_L( SRC3, EBP ) |
| MOV_L( SRC2, EBX ) |
| |
| XOR_L( ECX, ECX ) |
| ADD_L( EBP, EBP ) /* ebp = abs(S(3))*2 ; carry = sign of S(3) */ |
| |
| ADC_L( ECX, ECX ) |
| ADD_L( EBX, EBX ) /* ebx = abs(S(2))*2 ; carry = sign of S(2) */ |
| |
| ADC_L( ECX, ECX ) |
| CMP_L( EBX, EBP ) /* carry = abs(S(2))*2 > abs(S(3))*2 */ |
| |
| ADC_L( ECX, ECX ) |
| MOV_L( SRC1, EBX ) |
| |
| ADD_L( EBX, EBX ) /* ebx = abs(S(1))*2 ; carry = sign of S(1) */ |
| |
| ADC_L( ECX, ECX ) |
| CMP_L( EBX, EBP ) /* carry = abs(S(1))*2 > abs(S(3))*2 */ |
| |
| ADC_L( ECX, ECX ) |
| MOV_L( SRC0, EBX ) |
| |
| ADD_L( EBX, EBX ) /* ebx = abs(S(0))*2 ; carry = sign of S(0) */ |
| |
| ADC_L( ECX, ECX ) |
| CMP_L( EBX, EBP ) /* carry = abs(S(0))*2 > abs(S(3))*2 */ |
| |
| ADC_L( ECX, ECX ) |
| |
| #ifdef ELFPIC |
| MOV_L( REGIND(ESP), EBP ) /* clip_table */ |
| |
| MOV_B( REGBI(EBP, ECX), CL ) |
| #else |
| MOV_B( REGOFF(clip_table,ECX), CL ) |
| #endif |
| |
| OR_B( CL, AL ) |
| AND_B( CL, AH ) |
| |
| TEST_B( CL, CL ) |
| MOV_B( CL, REGIND(EDX) ) |
| |
| INC_L( EDX ) |
| /* slot */ |
| |
| ADD_L( ARG_DEST, ESI ) |
| CMP_L( EDX, EDI ) |
| |
| JNZ( LLBL(ctp4_np_top) ) |
| |
| MOV_L( ARG_OR, ECX ) |
| MOV_L( ARG_AND, EDX ) |
| |
| MOV_B( AL, REGIND(ECX) ) |
| MOV_B( AH, REGIND(EDX) ) |
| |
| LLBL(ctp4_np_finish): |
| |
| MOV_L( ARG_SOURCE, EAX ) |
| #ifdef ELFPIC |
| POP_L( ESI ) /* discard ptr to clip_table */ |
| #endif |
| POP_L( EBX ) |
| POP_L( EBP ) |
| POP_L( EDI ) |
| POP_L( ESI ) |
| |
| RET |
| |
| #if defined (__ELF__) && defined (__linux__) |
| .section .note.GNU-stack,"",%progbits |
| #endif |
