diff options
Diffstat (limited to 'src/mesa/x86/x86_cliptest.S')
| -rw-r--r-- | src/mesa/x86/x86_cliptest.S | 403 |
1 files changed, 403 insertions, 0 deletions
diff --git a/src/mesa/x86/x86_cliptest.S b/src/mesa/x86/x86_cliptest.S new file mode 100644 index 00000000000..f4038a583ae --- /dev/null +++ b/src/mesa/x86/x86_cliptest.S @@ -0,0 +1,403 @@ +/* $Id: x86_cliptest.S,v 1.11 2005/01/04 14:33:47 brianp 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 |