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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001-2006 The ScummVM project
* Copyright (C) 2005 Won Star - GP32 Backend
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "stdafx.h"
#include "common/scummsys.h"
#include "common/system.h"
#include "backends/intern.h"
#include "backends/gp32/gp32std.h"
#include "backends/gp32/gp32std_grap.h"
#include "backends/gp32/globals.h"
GPDRAWSURFACE lcdSurface[2];
uint8 flipIndex = 1;
uint16 *frameBuffer1;
uint16 *frameBuffer2;
uint8 gammaLUT[256];
uint8 gammaLUTInv[256];
extern const unsigned char fontresEng1[];
extern const unsigned char fontresKor1[];
void gp_putBitmap8x16(uint16 *frameBuffer, int x, int y, byte *lpBitmap, uint16 wColor) {
byte *pBitmap = lpBitmap;
for (int nRow = 0; nRow < 12; nRow ++) {
byte data = *pBitmap++;
for (int nCol = 0; nCol < 7; nCol ++) {
if (data & 0x80)
if (x + nCol >= 0 && y + nRow >= 0 && x + nCol < 320 && y + nRow < 240)
gpd_drawPixel16(frameBuffer, x + nCol, y + nRow, wColor);
data <<= 1;
}
}
}
void gp_putEngFont(uint16 *frameBuffer, int x, int y, char c, uint16 wColor) {
byte *pBitmap = (byte *) &fontresEng1[c * 16];
gp_putBitmap8x16(frameBuffer, x, y, pBitmap, wColor);
}
void gp_textOut(uint16 *frameBuffer, int x, int y, char* lpszText, uint16 wColor) {
// TODO: Handle korean font
int nPos = x;
char* pszText = lpszText;
while (*pszText != '\0') {
if (*pszText == '\n') {
nPos = x;
y += 8;
} else {
gp_putEngFont(frameBuffer, nPos, y, *pszText, wColor);
nPos += 7;
}
pszText++;
}
}
void gp_fillRect(uint16 *frameBuffer, int16 x, int16 y, int16 w, int16 h, uint16 color) {
uint16 *buffer = &frameBuffer[(240 - (y + h)) + (240 * x)];
for (int i = 0; i < w; i++) {
for (int j = 0; j < h; j++) {
*buffer++ = color;
}
buffer += 240 - h;
}
}
void gp_initGammaTable(float value)
{
for (int i = 0; i < 256; i++) {
if (value == 1.0f) {
gammaLUT[i] = i;
gammaLUTInv[i] = i;
} else {
gammaLUT[i] = (uint8)(pow((double)i / 256, 1 / (double)value) * 256);
gammaLUTInv[i] = (uint8)(pow((double)i / 256, (double)value) * 256);
}
}
}
uint16 gp_RGBTo16(uint16 r, uint16 g, uint16 b) {
// GP32 16bit color 5551
if (g_vars.gammaRamp != 10000) {
r = gammaLUT[r];
g = gammaLUT[g];
b = gammaLUT[b];
}
return (((r >> 3) & 0x1F) << 11) | (((g >> 3) & 0x1F) << 6) | ((b >> 3) & 0x1F) << 1;
}
void gp_16ToRGB(uint16 color, uint8 *r, uint8 *g, uint8 *b) {
*r = ((((color) >> 11) & 0x1F) << 3);
*g = ((((color) >> 6) & 0x1F) << 3); //(((color>>5)&0x3F) << 2);
*b = ((((color) >> 1) & 0x1F) << 3); //((color&0x1F) << 3);
if (g_vars.gammaRamp != 10000) {
*r = gammaLUTInv[*r];
*g = gammaLUTInv[*g];
*b = gammaLUTInv[*b];
}
}
void gp_flipScreen() {
uint16 *frameBuffer1_old = frameBuffer1;
uint16 *frameBuffer2_old = frameBuffer2;
GpSurfaceFlip(&lcdSurface[flipIndex]);
flipIndex = 1 - flipIndex;
frameBuffer1 = frameBuffer2_old;
frameBuffer2 = frameBuffer1_old;
}
void gp_initFrameBuffer() {
GpLcdSurfaceGet(&lcdSurface[0], 0);
GpLcdSurfaceGet(&lcdSurface[1], 1);
GpSurfaceSet(&lcdSurface[0]);
frameBuffer1 = (uint16 *)lcdSurface[0].ptbuffer;
frameBuffer2 = (uint16 *)lcdSurface[1].ptbuffer;
memset(frameBuffer1, 0xFF, LCD_WIDTH * LCD_HEIGHT * sizeof(uint16));
memset(frameBuffer2, 0xFF, LCD_WIDTH * LCD_HEIGHT * sizeof(uint16));
}
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