mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-28 04:34:50 +00:00
659 lines
16 KiB
C++
659 lines
16 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#include "common/file.h"
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#include "common/util.h"
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#include "cruise/cruise_main.h"
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namespace Cruise {
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// (old: fontProc1(int16 param, uint8* ptr1, uint8* ptr2))
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int32 getLineHeight(int16 charCount, uint8 * fontPtr, uint8 * fontPrt_Desc) {
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uint8 *dest;
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int32 highestChar = 0;
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int32 i;
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if (!charCount) {
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return (0);
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}
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dest = fontPrt_Desc + 6; // fontPtr + 20 // char height
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for (i = 0; i < charCount; i++) {
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if ((*(int16 *) dest) > highestChar) {
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highestChar = *(int16 *) dest;
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}
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dest += 12;
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}
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return highestChar;
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}
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// this function determins how many lines the text will have (old: fontProc2(int32 param1, int32 param2, uint8* ptr, uint8* string))
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int32 getTextLineCount(int32 rightBorder_X, int32 wordSpacingWidth,
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uint8 *ptr, const uint8 *textString) {
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const uint8 *localString = textString;
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const uint8 *currentStringPtr;
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uint8 character;
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int32 var_6 = 0;
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int32 lineLength = 0;
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const uint8 *tempPtr = 0;
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if (!*localString) {
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return (0);
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}
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currentStringPtr = localString;
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character = *localString;
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do {
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int32 charData = fontCharacterTable[character];
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if (character == '|') {
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lineLength = rightBorder_X;
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localString = tempPtr;
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} else {
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if (charData >= 0) { // + 0xA jump to last 2 bytes of the 12 bytes slice = letter width
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lineLength +=
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wordSpacingWidth + *(int16 *) (ptr + 0xA +
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charData * 12);
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} else {
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if (character == ' ') {
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lineLength += wordSpacingWidth + 5;
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localString = currentStringPtr;
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}
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}
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}
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tempPtr = currentStringPtr;
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if (rightBorder_X <= lineLength) {
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var_6 += rightBorder_X;
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currentStringPtr = localString;
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tempPtr = localString;
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lineLength = 0;
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}
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character = *(tempPtr++);
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currentStringPtr = tempPtr;
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} while (character);
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if (lineLength == 0) {
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return (var_6 / rightBorder_X);
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} else {
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return ((var_6 + rightBorder_X) / rightBorder_X);
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}
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}
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void loadFNT(const char *fileName) {
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uint8 header[6];
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int32 fontSize;
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int32 data2;
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uint8 data3[6];
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_systemFNT = NULL;
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Common::File fontFileHandle;
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if (!fontFileHandle.exists(fileName)) {
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return;
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}
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fontFileHandle.open((const char *)fileName);
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fontFileHandle.read(header, 4);
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if (strcmp((char*)header, "FNT") == 0) {
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fontFileHandle.read(&fontSize, 4);
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flipLong(&fontSize);
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fontFileHandle.read(&data2, 4);
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flipLong(&data2);
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fontFileHandle.read(data3, 6); // may need an endian flip ?
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flipGen(&data3, 6);
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_systemFNT = (uint8 *)mallocAndZero(fontSize);
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if (_systemFNT != NULL) {
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int32 i;
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uint8 *currentPtr;
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fontFileHandle.seek(0);
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fontFileHandle.read(header, 4); // not really require, we could fseek to 4
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fontFileHandle.read(_systemFNT, fontSize);
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flipLong((int32 *) _systemFNT);
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flipLong((int32 *) (_systemFNT + 4));
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flipGen(_systemFNT + 8, 6);
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currentPtr = _systemFNT + 14;
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for (i = 0; i < *(int16 *)(_systemFNT + 8); i++) {
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flipLong((int32 *)currentPtr);
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currentPtr += 4;
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flipGen(currentPtr, 8);
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currentPtr += 8;
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}
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}
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}
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fontFileHandle.close();
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}
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void initSystem(void) {
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int32 i;
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itemColor = 15;
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titleColor = 9;
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selectColor = 13;
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subColor = 10;
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for (i = 0; i < 64; i++) {
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strcpy(preloadData[i].name, "");
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preloadData[i].ptr = NULL;
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preloadData[i].nofree = 0;
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}
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lowMemory = 0;
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doFade = 0;
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fadeFlag = 0;
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scroll = 0;
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switchPal = 0;
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masterScreen = 0;
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changeCursor(CURSOR_NORMAL);
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strcpy(cmdLine, "");
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loadFNT("system.fnt");
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}
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void flipShort(int16 *var) {
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uint8 *varPtr = (uint8 *) var;
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SWAP(varPtr[0], varPtr[1]);
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}
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void flipShort(uint16 *var) {
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uint8 *varPtr = (uint8 *) var;
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SWAP(varPtr[0], varPtr[1]);
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}
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void flipLong(int32 *var) {
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char *varPtr = (char *)var;
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SWAP(varPtr[0], varPtr[3]);
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SWAP(varPtr[1], varPtr[2]);
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}
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void flipLong(uint32 *var) {
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char *varPtr = (char *)var;
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SWAP(varPtr[0], varPtr[3]);
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SWAP(varPtr[1], varPtr[2]);
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}
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void flipGen(void *var, int32 length) {
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int i;
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short int *varPtr = (int16 *) var;
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for (i = 0; i < (length / 2); i++) {
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flipShort(&varPtr[i]);
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}
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}
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void renderWord(uint8 * fontPtr_Data, uint8 * outBufferPtr,
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int32 drawPosPixel_X, int32 heightOff, int32 height, int32 param4,
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int32 stringRenderBufferSize, int32 width, int32 charWidth) {
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int i;
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int j;
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uint8 *fontPtr_Data2 = fontPtr_Data + height * 2;
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outBufferPtr += heightOff * width * 2; // param2 = height , param6 = width
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outBufferPtr += drawPosPixel_X; // param1 = drawPosPixel_X
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for (i = 0; i < height; i++) { // y++
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uint16 currentColor1 =
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(*(fontPtr_Data) << 8) | *(fontPtr_Data + 1);
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uint16 currentColor2 =
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(*(fontPtr_Data2) << 8) | *(fontPtr_Data2 + 1);
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fontPtr_Data += 2;
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fontPtr_Data2 += 2;
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for (j = 0; j < charWidth; j++) {
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*outBufferPtr =
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((currentColor1 >> 15) & 1) | ((currentColor2 >>
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14) & 2);
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outBufferPtr++;
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currentColor1 <<= 1;
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currentColor2 <<= 1;
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}
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outBufferPtr += (width * 2) - charWidth;
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}
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}
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// returns character count and pixel size (via pointer) per line of the string (old: prepareWordRender(int32 param, int32 var1, int16* out2, uint8* ptr3, uint8* string))
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int32 prepareWordRender(int32 inRightBorder_X, int32 wordSpacingWidth,
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int16 * strPixelLength, uint8 * ptr3, const uint8 * textString) {
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const uint8 *localString = textString;
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int32 counter = 0;
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int32 finish = 0;
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int32 temp_pc = 0; // var_A // temporary pixel count save
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int32 temp_cc = 0; // var_C // temporary char count save
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int32 pixelCount = 0; // si
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do {
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uint8 character = *(localString++);
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int16 charData = fontCharacterTable[character];
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if (character == ' ') {
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temp_cc = counter;
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temp_pc = pixelCount;
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if (pixelCount + wordSpacingWidth + 5 >=
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inRightBorder_X) {
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finish = 1;
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} else {
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pixelCount += wordSpacingWidth + 5;
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}
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} else {
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if (character == '|' || !character) {
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finish = 1;
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} else {
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if (charData) {
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if (pixelCount + wordSpacingWidth +
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*(int16 *) ((ptr3 +
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charData * 12) + 0xA) >=
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inRightBorder_X) {
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finish = 1;
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if (temp_pc) {
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pixelCount = temp_pc;
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counter = temp_cc;
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}
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} else {
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pixelCount +=
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wordSpacingWidth +
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*(int16 *) ((ptr3 +
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charData * 12) + 0xA);
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}
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}
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}
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}
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counter++;
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} while (!finish);
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*strPixelLength = (int16) pixelCount;
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return counter;
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}
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void drawString(int32 x, int32 y, uint8 *string, uint8 *buffer, uint8 color,
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int32 inRightBorder_X) {
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uint8 *fontPtr;
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uint8 *fontPtr_Data; // ptr2
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uint8 *fontPtr_Desc; // ptr3
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int32 wordSpacingWidth; // var1
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int32 wordSpacingHeight; // var2
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int32 rightBorder_X; // param2
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int32 lineHeight; // fontProc1result
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int32 numLines;
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int32 stringHeight;
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int32 stringFinished;
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int32 stringWidth; // var_1C
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int32 stringRenderBufferSize;
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int32 useDynamicBuffer;
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uint8 *currentStrRenderBuffer;
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// int32 var_8; // don't need that on
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int32 heightOffset; // var_12
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int32 renderBufferSize; // var_1E
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int needFlip;
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if (!buffer || !string) {
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return;
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}
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if (fontFileIndex != -1) {
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fontPtr = filesDatabase[fontFileIndex].subData.ptr;
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if (!fontPtr) {
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fontPtr = _systemFNT;
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}
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} else {
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fontPtr = _systemFNT;
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}
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if (!fontPtr) {
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return;
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}
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fontPtr_Data = fontPtr + *(int16 *) (fontPtr + 4);
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fontPtr_Desc = fontPtr + 14;
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lineHeight = getLineHeight(*(int16 *) (fontPtr + 8), fontPtr, fontPtr_Desc); // ok
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wordSpacingWidth = *(int16 *) (fontPtr + 10);
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wordSpacingHeight = *(int16 *) (fontPtr + 12);
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if (inRightBorder_X > 310) {
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rightBorder_X = 310;
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} else {
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rightBorder_X = inRightBorder_X;
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}
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if (x + rightBorder_X > 319) {
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x = 319 - rightBorder_X;
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}
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if (y < 0) {
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y = 0;
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}
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if (x < 0) {
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x = 0;
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}
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numLines = getTextLineCount(rightBorder_X, wordSpacingWidth, fontPtr_Desc, string); // ok
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if (!numLines) {
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return;
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}
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stringHeight = ((wordSpacingHeight + lineHeight + 2) * numLines) + 1;
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if (y + stringHeight > 199) {
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y = 200 - stringHeight;
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}
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stringFinished = 0;
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stringWidth = (rightBorder_X / 16) + 2;
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stringRenderBufferSize = stringWidth * stringHeight * 4;
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inRightBorder_X = rightBorder_X;
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if (stringRenderBufferSize > 0x2000) {
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currentStrRenderBuffer =
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(uint8 *) mallocAndZero(stringRenderBufferSize);
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if (!currentStrRenderBuffer) {
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return;
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}
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useDynamicBuffer = 1;
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} else {
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currentStrRenderBuffer = (uint8 *) workBuffer;
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useDynamicBuffer = 0;
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}
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resetRaster(currentStrRenderBuffer, stringRenderBufferSize);
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// var_8 = 0;
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heightOffset = 0;
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renderBufferSize = stringRenderBufferSize;
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do {
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int spacesCount = 0; // si
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char character = *(string);
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short int strPixelLength; // var_16;
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uint8 *ptrStringEnd; // var_4 //ok
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int drawPosPixel_X; // di
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while (character == ' ') {
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spacesCount++;
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character = *(string + spacesCount);
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}
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string += spacesCount;
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ptrStringEnd = string + prepareWordRender(inRightBorder_X, wordSpacingWidth, &strPixelLength, fontPtr_Desc, string); //ok
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if (inRightBorder_X > strPixelLength) {
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drawPosPixel_X =
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(inRightBorder_X - strPixelLength) / 2;
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} else {
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drawPosPixel_X = 0;
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}
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// drawPosPixel_X = var_8;
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do {
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character = *(string++);
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short int data = fontCharacterTable[(int)character];
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if (character) {
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if (character == ' ' || character == 0x7D) {
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drawPosPixel_X += wordSpacingWidth + 5;
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} else {
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if (data) {
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short int *si =
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(int16 *) (fontPtr_Desc +
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data * 12);
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//int var_2 = si[5];
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renderWord(fontPtr_Data +
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si[0],
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currentStrRenderBuffer,
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drawPosPixel_X,
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si[4] - si[3] +
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lineHeight + heightOffset,
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si[3], si[2],
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renderBufferSize / 2,
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stringWidth * 2, si[5]);
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drawPosPixel_X +=
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wordSpacingWidth + si[5];
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}
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}
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} else {
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stringFinished = 1;
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}
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if (ptrStringEnd <= string) {
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break;
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}
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} while (!stringFinished);
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// var_8 = 0;
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heightOffset = wordSpacingHeight + lineHeight;
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} while (!stringFinished);
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needFlip = 0;
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if (buffer == gfxModuleData.pPage00) {
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if (gfxModuleData.field_1 != 0) {
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needFlip = 1;
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gfxModuleData_field_90();
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}
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gfxModuleData_gfxWaitVSync();
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}
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gfxModuleData_field_64((char *)currentStrRenderBuffer, stringWidth,
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stringHeight, (char *)buffer, x, y, 0);
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gfxModuleData_field_64((char *)currentStrRenderBuffer, stringWidth,
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stringHeight, (char *)buffer, x, y, color);
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if (needFlip) {
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gfxModuleData_flip();
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}
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if (useDynamicBuffer) {
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free(currentStrRenderBuffer);
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}
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}
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// calculates all necessary datas and renders text
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gfxEntryStruct *renderText(int inRightBorder_X, const uint8 *string) {
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uint8 *fontPtr;
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uint8 *fontPtr_Data; // pt2
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uint8 *fontPtr_Desc; // ptr3
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int32 wordSpacingWidth; // var1 //0 or -1
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int32 wordSpacingHeight; // var2 //0 or -1
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int32 rightBorder_X;
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int32 lineHeight; // fontProc1result
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int32 numLines;
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int32 stringHeight;
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int32 stringFinished;
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int32 stringWidth; // var_1C
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int32 stringRenderBufferSize;
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// int32 useDynamicBuffer;
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uint8 *currentStrRenderBuffer;
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// int32 var_8; // don't need that one
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int32 heightOffset; // var_12 // how much pixel-lines have already been drawn
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// int32 var_1E;
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gfxEntryStruct *generatedGfxEntry;
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// check if string is empty
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if (!string) {
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return NULL;
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}
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// check if font has been loaded, else get system font
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if (fontFileIndex != -1) {
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fontPtr = filesDatabase[fontFileIndex].subData.ptr;
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if (!fontPtr) {
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fontPtr = _systemFNT;
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}
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} else {
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fontPtr = _systemFNT;
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}
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if (!fontPtr) {
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return NULL;
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}
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fontPtr_Data = fontPtr + *(int16 *) (fontPtr + 4); // offset to char data
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fontPtr_Desc = fontPtr + 14; // offset to char description
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lineHeight = getLineHeight(*(int16 *) (fontPtr + 8), fontPtr, fontPtr_Desc); // ok
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wordSpacingWidth = *(int16 *) (fontPtr + 10);
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wordSpacingHeight = *(int16 *) (fontPtr + 12);
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// if right border is higher then screenwidth (+ spacing), adjust border
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if (inRightBorder_X > 310) {
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rightBorder_X = 310;
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} else {
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rightBorder_X = inRightBorder_X;
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}
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numLines = getTextLineCount(rightBorder_X, wordSpacingWidth, fontPtr_Desc, string); // ok
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if (!numLines) {
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return NULL;
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}
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stringHeight = ((wordSpacingHeight + lineHeight + 2) * numLines) + 1;
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stringFinished = 0;
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stringWidth = rightBorder_X + 2; // max render width to the right
|
|
stringRenderBufferSize = stringWidth * stringHeight * 4;
|
|
inRightBorder_X = rightBorder_X;
|
|
|
|
currentStrRenderBuffer =
|
|
(uint8 *) mallocAndZero(stringRenderBufferSize);
|
|
resetRaster(currentStrRenderBuffer, stringRenderBufferSize);
|
|
|
|
generatedGfxEntry = (gfxEntryStruct *) malloc(sizeof(gfxEntryStruct));
|
|
generatedGfxEntry->imagePtr = currentStrRenderBuffer;
|
|
generatedGfxEntry->imageSize = stringRenderBufferSize / 2;
|
|
generatedGfxEntry->fontIndex = fontFileIndex;
|
|
generatedGfxEntry->height = stringHeight;
|
|
generatedGfxEntry->width = stringWidth; // maximum render width to the right
|
|
|
|
// var_8 = 0;
|
|
heightOffset = 0;
|
|
|
|
do {
|
|
int spacesCount = 0; // si
|
|
unsigned char character = *string;
|
|
short int strPixelLength; // var_16
|
|
const uint8 *ptrStringEnd; // var_4 //ok
|
|
int drawPosPixel_X; // di
|
|
|
|
// find first letter in string, skip all spaces
|
|
while (character == ' ') {
|
|
spacesCount++;
|
|
character = *(string + spacesCount);
|
|
}
|
|
|
|
string += spacesCount;
|
|
|
|
// returns character count and pixel length (via pointer) per line of the text string
|
|
ptrStringEnd = string + prepareWordRender(inRightBorder_X, wordSpacingWidth, &strPixelLength, fontPtr_Desc, string); //ok
|
|
|
|
// determine how much space is left to the right and left (center text)
|
|
if (inRightBorder_X > strPixelLength) {
|
|
//var_8 = (inRightBorder_X - strPixelLength) / 2;
|
|
drawPosPixel_X =
|
|
(inRightBorder_X - strPixelLength) / 2;
|
|
} else {
|
|
drawPosPixel_X = 0;
|
|
}
|
|
//drawPosPixel_X = var_8;
|
|
|
|
// draw textline, character wise
|
|
do {
|
|
character = *(string++);
|
|
|
|
short int charData = fontCharacterTable[character]; // get character position
|
|
|
|
if (character) {
|
|
if (character == ' ' || character == 0x7C) {
|
|
drawPosPixel_X += wordSpacingWidth + 5; // if char = "space" adjust word starting postion (don't render space though);
|
|
} else {
|
|
if (charData >= 0) {
|
|
short int *si = (int16 *) (fontPtr_Desc + charData * 12); // offset font data
|
|
// int var_2 = si[5]; // don't need this
|
|
|
|
// should ist be stringRenderBufferSize/2 for the second last param?
|
|
renderWord(fontPtr_Data +
|
|
si[0],
|
|
currentStrRenderBuffer,
|
|
drawPosPixel_X,
|
|
si[4] - si[3] +
|
|
lineHeight + heightOffset,
|
|
si[3], si[2],
|
|
stringRenderBufferSize,
|
|
stringWidth / 2, si[5]);
|
|
|
|
drawPosPixel_X +=
|
|
wordSpacingWidth + si[5];
|
|
}
|
|
}
|
|
} else {
|
|
stringFinished = 1; // character = 0x00
|
|
}
|
|
|
|
// check if string already reached the end
|
|
if (ptrStringEnd <= string) {
|
|
break;
|
|
}
|
|
} while (!stringFinished);
|
|
|
|
// var_8 = 0;
|
|
heightOffset += wordSpacingHeight + lineHeight;
|
|
} while (!stringFinished);
|
|
|
|
return generatedGfxEntry;
|
|
}
|
|
|
|
} // End of namespace Cruise
|