drivers/gp2x/gp2x-video.c

   1 /* FCE Ultra - NES/Famicom Emulator
   2  *
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  */
  17
  18 #include <stdio.h>
  19 #include <string.h>
  20 #include <sys/time.h>
  21
  22 #include "../../video.h"
  23
  24 #include "main.h"
  25 #include "gp2x.h"
  26 #include "minimal.h"
  27 #include "fonts.h"
  28
  29 static char fps_str[32];
  30 static int framesEmulated, framesRendered;
  31
  32 int gp2x_palette[256];
  33
  34 int scaled_display=0;
  35 int paletterefresh;
  36
  37 #define FPS_COLOR 1
  38
  39
  40 static void gp2x_text(unsigned char *screen, int x, int y, char *text, int color, int flip)
  41 {
  42         int i,l,slen;
  43         slen=strlen(text);
  44
  45         screen=screen+x+y*320;
  46
  47         for (i=0;i<slen;i++)
  48         {
  49                 for (l=0;l<8;l++)
  50                 {
  51
  52                         screen[l*320+0]=(fontdata8x8[((text[i])*8)+l]&0x80)?color:screen[l*320+0];
  53                         screen[l*320+1]=(fontdata8x8[((text[i])*8)+l]&0x40)?color:screen[l*320+1];
  54                         screen[l*320+2]=(fontdata8x8[((text[i])*8)+l]&0x20)?color:screen[l*320+2];
  55                         screen[l*320+3]=(fontdata8x8[((text[i])*8)+l]&0x10)?color:screen[l*320+3];
  56                         screen[l*320+4]=(fontdata8x8[((text[i])*8)+l]&0x08)?color:screen[l*320+4];
  57                         screen[l*320+5]=(fontdata8x8[((text[i])*8)+l]&0x04)?color:screen[l*320+5];
  58                         screen[l*320+6]=(fontdata8x8[((text[i])*8)+l]&0x02)?color:screen[l*320+6];
  59                         screen[l*320+7]=(fontdata8x8[((text[i])*8)+l]&0x01)?color:screen[l*320+7];
  60
  61                 }
  62                 screen+=8;
  63         }
  64 }
  65
  66
  67 void CleanSurface(void)
  68 {
  69         int c=4;
  70         while (c--)
  71         {
  72                 memset(gp2x_screen, 0, 320*240);
  73                 gp2x_video_flip();
  74         }
  75         XBuf = gp2x_screen;
  76 }
  77
  78
  79 void KillVideo(void)
  80 {
  81 }
  82
  83
  84 int InitVideo(void)
  85 {
  86         fps_str[0]=0;
  87
  88         CleanSurface();
  89
  90         puts("Initialized GP2X VIDEO via minimal");
  91
  92         srendline=0;
  93         erendline=239;
  94         XBuf = gp2x_screen;
  95         return 1;
  96 }
  97
  98
  99 void ToggleFS(void)
 100 {
 101 }
 102
 103
 104 void FCEUD_SetPalette(uint8 index, uint8 r, uint8 g, uint8 b)
 105 {
 106         gp2x_palette[index] = (r << 16) | (g << 8) | b;
 107         gp2x_video_setpalette(gp2x_palette, index + 1);
 108
 109         paletterefresh = 1;
 110 }
 111
 112
 113 void FCEUD_GetPalette(uint8 index, uint8 * r, uint8 * g, uint8 * b)
 114 {
 115         int pix = gp2x_palette[index];
 116         *r = (uint8) (pix >> 16);
 117         *g = (uint8) (pix >> 8);
 118         *b = (uint8)  pix;
 119 }
 120
 121
 122 static INLINE void printFps(uint8 *screen)
 123 {
 124         struct timeval tv_now;
 125         static int prevsec, needfpsflip = 0;
 126
 127         gettimeofday(&tv_now, 0);
 128         if (prevsec != tv_now.tv_sec)
 129         {
 130                 sprintf(fps_str, "%2i/%2i", framesRendered, framesEmulated);
 131                 framesEmulated = framesRendered = 0;
 132                 needfpsflip = 4;
 133                 prevsec = tv_now.tv_sec;
 134         }
 135
 136         if (!scaled_display)
 137         {
 138                 if (needfpsflip)
 139                 {
 140                         int y, *destt = (int *) screen;
 141                         for (y = 20/*240*/; y; y--)
 142                         {
 143                                 *destt++ = 0; *destt++ = 0; *destt++ = 0; *destt++ = 0;
 144                                 *destt++ = 0; *destt++ = 0; *destt++ = 0; *destt++ = 0;
 145                                 destt += 64+8;
 146
 147                                 //*destt++ = 0x3F3F3F3F; *destt++ = 0x3F3F3F3F; *destt++ = 0x3F3F3F3F; *destt++ = 0x3F3F3F3F;
 148                                 //*destt++ = 0x3F3F3F3F; *destt++ = 0x3F3F3F3F; *destt++ = 0x3F3F3F3F; *destt++ = 0x3F3F3F3F;
 149                         }
 150                         if (Settings.showfps)
 151                         {
 152                                 int sep;
 153                                 for (sep=1; sep < 5; sep++)
 154                                         if (fps_str[sep] == '/' || fps_str[sep] == 0) break;
 155                                 fps_str[sep] = 0;
 156                                 gp2x_text(screen, 0,  0, fps_str,       FPS_COLOR, 0);
 157                                 gp2x_text(screen, 0, 10, fps_str+sep+1, FPS_COLOR, 0);
 158                         }
 159                         needfpsflip--;
 160                 }
 161         }
 162         else
 163         {
 164                 if (Settings.showfps)
 165                 {
 166                         gp2x_text(screen+32, 0, 0, fps_str, FPS_COLOR, 0);
 167                 }
 168         }
 169 }
 170
 171
 172 void BlitScreen(uint8 *buf)
 173 {
 174         framesEmulated++;
 175
 176         if (!buf) return;
 177
 178         framesRendered++;
 179
 180         printFps(gp2x_screen);
 181         gp2x_video_flip();
 182         XBuf = gp2x_screen;
 183 }
 184
 185