diff options
Diffstat (limited to 'backends/platform/ds/arm9')
| -rw-r--r-- | backends/platform/ds/arm9/source/blitters.cpp | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/backends/platform/ds/arm9/source/blitters.cpp b/backends/platform/ds/arm9/source/blitters.cpp index 5c9e07fd47..2d34cf86f1 100644 --- a/backends/platform/ds/arm9/source/blitters.cpp +++ b/backends/platform/ds/arm9/source/blitters.cpp @@ -134,139 +134,3 @@ void asmCopy8Col(byte* dst, int dstPitch, const byte* src, int height) { } } -/* ScummVMDS - Scumm Interpreter DS Port - * Copyright (C) 2002-2004 The ScummVM project and Neil Millstone - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - */ - -#include "stdafx.h" -#define CHARSET_MASK_TRANSPARENCY 253 - -namespace DS { - -void asmDrawStripToScreen(int height, int width, byte const* text, byte const* src, byte* dst, - int vsPitch, int vmScreenWidth, int textSurfacePitch) { - - - if (height <= 0) height = 1; - if (width < 4) return; - - - width &= ~4; -// src = (const byte *) (((int) (src)) & (~4)); -// dst = (byte *) (((int) (dst)) & (~4)); -// text = (const byte *) (((int) (text)) & (~4)); - - asm ( "mov r5, %0\n" // Height - "yLoop:\n" - "mov r3, #0\n" // X pos - - "xLoop:\n" - - "ldr r4, [%2, r3]\n" // Load text layer word - "cmp r4, %5\n" - "bne singleByteCompare\n" - "ldr r4, [%3, r3]\n" - "str r4, [%4, r3]\n" - "add r3, r3, #4\n" - "cmp r3, %1\n" // x == width? - "blt xLoop\n" - - "add %2, %2, %8\n" // src += vs->pitch - "add %3, %3, %6\n" // dst += _vm->_screenWidth - "add %4, %4, %7\n" // text += _textSurface.pitch - "sub r5, r5, #1\n" // y -= 1 - "cmp r5, #0\n" // y == 0? - "bne yLoop\n" - "b end\n" - - - "singleByteCompare:\n" - "ldrb r4, [%2, r3]\n" // Load text byte - "cmps r4, %5, lsr #24\n" // Compare with mask - "strneb r4, [%4, r3]\n" // Store if not equal - "ldreqb r4, [%3, r3]\n" // Otherwise Load src byte - "streqb r4, [%4, r3]\n" // Store it - "add r3, r3, #1\n" - - "ldrb r4, [%2, r3]\n" // Load text byte - "cmps r4, %5, lsr #24\n" // Compare with mask - "strneb r4, [%4, r3]\n" // Store if not equal - "ldreqb r4, [%3, r3]\n" // Otherwise Load src byte - "streqb r4, [%4, r3]\n" // Store it - "add r3, r3, #1\n" - - "ldrb r4, [%2, r3]\n" // Load text byte - "cmps r4, %5, lsr #24\n" // Compare with mask - "strneb r4, [%4, r3]\n" // Store if not equal - "ldreqb r4, [%3, r3]\n" // Otherwise Load src byte - "streqb r4, [%4, r3]\n" // Store it - "add r3, r3, #1\n" - - "ldrb r4, [%2, r3]\n" // Load text byte - "cmps r4, %5, lsr #24\n" // Compare with mask - "strneb r4, [%4, r3]\n" // Store if not equal - "ldreqb r4, [%3, r3]\n" // Otherwise Load src byte - "streqb r4, [%4, r3]\n" // Store it - "add r3, r3, #1\n" - - "cmps r3, %1\n" // x == width? - "blt xLoop\n" // Repeat - "add %2, %2, %8\n" // src += vs->pitch - "add %3, %3, %6\n" // dst += _vm->_screenWidth - "add %4, %4, %7\n" // text += _textSurface.pitch - "sub r5, r5, #1\n" // y -= 1 - "cmp r5, #0\n" // y == 0? - "bne yLoop\n" - - "end:\n" - : /* no output registers */ - : "r" (height), "r" (width), "r" (text), "r" (src), "r" (dst), "r" (CHARSET_MASK_TRANSPARENCY | (CHARSET_MASK_TRANSPARENCY << 8) | (CHARSET_MASK_TRANSPARENCY << 16) | (CHARSET_MASK_TRANSPARENCY << 24)), - "r" (vsPitch), "r" (vmScreenWidth), "r" (textSurfacePitch) - : "r5", "r3", "r4", "%2", "%3", "%4", "memory"); -} - - - -void asmCopy8Col(byte* dst, int dstPitch, const byte* src, int height) { - asm("ands r0, %3, #1\n" - "addne %3, %3, #1\n" - "bne roll2\n" - - "yLoop2:\n" - "ldr r0, [%2, #0]\n" - "str r0, [%0, #0]\n" - "ldr r0, [%2, #4]\n" - "str r0, [%0, #4]\n" - "add %0, %0, %1\n" - "add %2, %2, %1\n" - "roll2:\n" - "ldr r0, [%2, #0]\n" - "str r0, [%0, #0]\n" - "ldr r0, [%2, #4]\n" - "str r0, [%0, #4]\n" - "add %0, %0, %1\n" - "add %2, %2, %1\n" - "subs %3, %3, #2\n" - "bne yLoop2\n" - - : /* no output registers */ - : "r" (dst), "r" (dstPitch), "r" (src), "r" (height) - : "r0", "%0", "%2", "%3"); -} - -} |