forked from len0rd/rockbox
Various improvements and code re-organisation: Optimised assembler LCD rendering function for the iPod 5G by me and an optimisations to the sprite drawing routines courtesy of stripwax (these improvements make pacbox almost realtime on the iPod 5G). MENU+SELECT now brings up the menu on the iPod instead of the hold switch.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9018 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dave Chapman
parent
b1b0e42ddd
commit
ad8b24d90c
8 changed files with 422 additions and 191 deletions
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@ -19,10 +19,13 @@ endif
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LINKFILE := $(OBJDIR)/link.lds
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LINKFILE := $(OBJDIR)/link.lds
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DEPFILE = $(OBJDIR)/dep-pacbox
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DEPFILE = $(OBJDIR)/dep-pacbox
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SRC = arcade.c pacbox.c hardware.c z80.c
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# This sets up 'SRC' based on the files mentioned in SOURCES
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include $(TOOLSDIR)/makesrc.inc
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SOURCES = $(SRC)
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SOURCES = $(SRC)
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OBJS := $(SRC:%.c=$(OBJDIR)/%.o)
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OBJS2 := $(SRC:%.c=$(OBJDIR)/%.o)
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OBJS = $(patsubst %.S, $(OBJDIR)/%.o, $(OBJS2))
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DIRS = .
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DIRS = .
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LDS := ../plugin.lds
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LDS := ../plugin.lds
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9
apps/plugins/pacbox/SOURCES
Normal file
9
apps/plugins/pacbox/SOURCES
Normal file
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@ -0,0 +1,9 @@
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arcade.c
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pacbox.c
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hardware.c
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z80.c
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#if (CONFIG_CPU == PP5020) && (LCD_WIDTH >= 288) && (LCD_HEIGHT >= 224)
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pacbox_arm.S
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#else
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pacbox_lcd.c
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#endif
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@ -252,19 +252,19 @@ static unsigned decodePaletteByte( unsigned char value )
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unsigned bit0, bit1, bit2;
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unsigned bit0, bit1, bit2;
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unsigned red, green, blue;
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unsigned red, green, blue;
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bit0 = (value >> 0) & 0x01;
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bit0 = (value >> 0) & 0x01;
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bit1 = (value >> 1) & 0x01;
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bit1 = (value >> 1) & 0x01;
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bit2 = (value >> 2) & 0x01;
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bit2 = (value >> 2) & 0x01;
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red = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
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red = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
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bit0 = (value >> 3) & 0x01;
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bit0 = (value >> 3) & 0x01;
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bit1 = (value >> 4) & 0x01;
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bit1 = (value >> 4) & 0x01;
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bit2 = (value >> 5) & 0x01;
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bit2 = (value >> 5) & 0x01;
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green = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
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green = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
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bit0 = 0;
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bit0 = 0;
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bit1 = (value >> 6) & 0x01;
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bit1 = (value >> 6) & 0x01;
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bit2 = (value >> 7) & 0x01;
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bit2 = (value >> 7) & 0x01;
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blue = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
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blue = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
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return (blue << 16 ) | (green << 8) | red;
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return (blue << 16 ) | (green << 8) | red;
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@ -428,6 +428,7 @@ inline void drawSprite( unsigned char * buffer, int index )
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{
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{
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struct PacmanSprite ps = sprites_[index];
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struct PacmanSprite ps = sprites_[index];
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int x,y;
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int x,y;
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char * s, * s2;
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// Exit now if sprite not visible at all
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// Exit now if sprite not visible at all
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if( (ps.color == 0) || (ps.x >= ScreenWidth) || (ps.y < 16) || (ps.y >= (ScreenHeight-32)) ) {
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if( (ps.color == 0) || (ps.x >= ScreenWidth) || (ps.y < 16) || (ps.y >= (ScreenHeight-32)) ) {
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@ -436,59 +437,77 @@ inline void drawSprite( unsigned char * buffer, int index )
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// Clip the sprite coordinates to cut the parts that fall off the screen
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// Clip the sprite coordinates to cut the parts that fall off the screen
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int start_x = (ps.x < 0) ? 0 : ps.x;
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int start_x = (ps.x < 0) ? 0 : ps.x;
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int end_x = (ps.x < (ScreenWidth-16)) ? ps.x+16 : ScreenWidth;
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int end_x = (ps.x < (ScreenWidth-16)) ? ps.x+15 : ScreenWidth-1;
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// Prepare variables for drawing
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// Prepare variables for drawing
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int color = (ps.color & 0x3F)*4;
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int color = (ps.color & 0x3F)*4;
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unsigned char * spritemap_base = spritemap_ + ((ps.n & 0x3F)*256);
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unsigned char * spritemap_base = spritemap_ + ((ps.n & 0x3F)*256);
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buffer += ScreenWidth*ps.y;
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buffer += ScreenWidth*ps.y;
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s2 = &spritemap_base[start_x-ps.x];
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dirty_[(start_x >> 3) + (ps.y >> 3)*28] = 1;
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dirty_[(start_x >> 3) + 1 + (ps.y >> 3)*28] = 1;
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dirty_[(end_x >> 3) + (ps.y >> 3)*28] = 1;
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dirty_[(start_x >> 3) + ((ps.y >> 3)+1)*28] = 1;
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dirty_[(start_x >> 3) + 1 + ((ps.y >> 3)+1)*28] = 1;
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dirty_[(end_x >> 3) + ((ps.y >> 3)+1)*28] = 1;
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dirty_[(start_x >> 3) + ((ps.y+15) >> 3)*28] = 1;
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dirty_[(start_x >> 3) + 1 + ((ps.y+15) >> 3)*28] = 1;
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dirty_[(end_x >> 3) + ((ps.y+15) >> 3)*28] = 1;
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// Draw the 16x16 sprite
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// Draw the 16x16 sprite
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if( ps.mode == 0 ) { // Normal
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if( ps.mode == 0 ) { // Normal
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// Draw the 16x16 sprite
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// Draw the 16x16 sprite
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for( y=0; y<16; y++ ) {
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for( y=15; y>=0; y-- ) {
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char* s = &spritemap_base[start_x-ps.x+y*16];
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s = s2;
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for( x=start_x; x<end_x; x++ ) {
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for( x=start_x; x<=end_x; x++ ) {
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int c = *(s++);
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int c = *(s++);
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if( c ) {
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if( c ) {
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buffer[x] = c + color;
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buffer[x] = c + color;
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}
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}
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}
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}
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buffer += ScreenWidth;
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buffer += ScreenWidth;
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s2 += 16;
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}
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}
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} else if( ps.mode == 1 ) { // Flip Y
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} else if( ps.mode == 1 ) { // Flip Y
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for( y=0; y<16; y++ ) {
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s2 += 240;
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char* s = &spritemap_base[start_x-ps.x+(15-y)*16];
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for( y=15; y>=0; y-- ) {
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for( x=start_x; x<end_x; x++ ) {
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s = s2;
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for( x=start_x; x<=end_x; x++ ) {
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int c = *(s++);
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int c = *(s++);
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if( c ) {
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if( c ) {
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buffer[x] = c + color;
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buffer[x] = c + color;
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}
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}
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}
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}
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buffer += ScreenWidth;
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buffer += ScreenWidth;
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s2 -= 16;
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}
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}
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} else if( ps.mode == 2 ) { // Flip X
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} else if( ps.mode == 2 ) { // Flip X
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for( y=0; y<16; y++ ) {
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s2 += 15;
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char* s = &spritemap_base[15-start_x+ps.x+y*16];
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for( y=15; y>=-0; y-- ) {
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for( x=start_x; x<end_x; x++ ) {
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s = s2;
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for( x=start_x; x<=end_x; x++ ) {
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int c = *(s--);
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int c = *(s--);
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if( c ) {
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if( c ) {
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buffer[x] = c + color;
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buffer[x] = c + color;
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}
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}
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}
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}
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buffer += ScreenWidth;
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buffer += ScreenWidth;
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s2 += 16;
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}
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}
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} else { // Flip X and Y
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} else { // Flip X and Y
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for( y=0; y<16; y++ ) {
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s2 += 255;
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char* s = &spritemap_base[15-start_x+ps.x+(15-y)*16];
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for( y=15; y>=0; y-- ) {
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for( x=start_x; x<end_x; x++ ) {
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s = s2;
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for( x=start_x; x<=end_x; x++ ) {
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int c = *(s--);
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int c = *(s--);
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if( c ) {
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if( c ) {
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buffer[x] = c + color;
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buffer[x] = c + color;
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}
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}
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}
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}
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buffer += ScreenWidth;
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buffer += ScreenWidth;
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s2 -= 16;
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}
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}
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}
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}
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}
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}
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@ -24,6 +24,8 @@
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#include "plugin.h"
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#include "plugin.h"
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#include "arcade.h"
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#include "arcade.h"
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#include "pacbox.h"
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#include "pacbox_lcd.h"
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PLUGIN_HEADER
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PLUGIN_HEADER
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@ -38,64 +40,6 @@ extern char iend[];
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/* How many video frames (out of a possible 60) we display each second */
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/* How many video frames (out of a possible 60) we display each second */
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#define FPS 20
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#define FPS 20
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#if CONFIG_KEYPAD == IPOD_4G_PAD
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#define PACMAN_UP BUTTON_RIGHT
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#define PACMAN_DOWN BUTTON_LEFT
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#define PACMAN_LEFT BUTTON_MENU
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#define PACMAN_RIGHT BUTTON_PLAY
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#define PACMAN_1UP BUTTON_SELECT
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#define PACMAN_COIN BUTTON_SELECT
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#elif CONFIG_KEYPAD == IRIVER_H100_PAD || CONFIG_KEYPAD == IRIVER_H300_PAD
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#define PACMAN_UP BUTTON_RIGHT
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#define PACMAN_DOWN BUTTON_LEFT
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#define PACMAN_LEFT BUTTON_UP
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#define PACMAN_RIGHT BUTTON_DOWN
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#define PACMAN_1UP BUTTON_SELECT
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#define PACMAN_2UP BUTTON_ON
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#define PACMAN_COIN BUTTON_REC
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#define PACMAN_MENU BUTTON_MODE
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#elif CONFIG_KEYPAD == GIGABEAT_PAD
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#define PACMAN_UP BUTTON_UP
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#define PACMAN_DOWN BUTTON_DOWN
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#define PACMAN_LEFT BUTTON_LEFT
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#define PACMAN_RIGHT BUTTON_RIGHT
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#define PACMAN_1UP BUTTON_SELECT
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#define PACMAN_2UP BUTTON_POWER
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#define PACMAN_COIN BUTTON_A
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#define PACMAN_MENU BUTTON_MENU
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#elif CONFIG_KEYPAD == IAUDIO_X5_PAD
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#define PACMAN_UP BUTTON_RIGHT
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#define PACMAN_DOWN BUTTON_LEFT
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#define PACMAN_LEFT BUTTON_UP
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#define PACMAN_RIGHT BUTTON_DOWN
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#define PACMAN_1UP BUTTON_SELECT
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#define PACMAN_2UP BUTTON_POWER
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#define PACMAN_COIN BUTTON_REC
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#define PACMAN_MENU BUTTON_PLAY
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#endif
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#if (LCD_HEIGHT >= 288)
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#define XOFS ((LCD_WIDTH-224)/2)
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#define YOFS ((LCD_HEIGHT-288)/2)
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#elif (LCD_WIDTH >= 288)
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#define XOFS ((LCD_WIDTH-288)/2)
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#define YOFS ((LCD_HEIGHT-224)/2)
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#elif (LCD_WIDTH >= 220)
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#define XOFS ((LCD_WIDTH-(288*3/4))/2)
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#define YOFS ((LCD_HEIGHT-(224*3/4))/2)
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#elif (LCD_WIDTH >= 144)
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#define XOFS ((LCD_WIDTH-288/2)/2)
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#define YOFS ((LCD_HEIGHT-224/2)/2)
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#endif
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struct plugin_api* rb;
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struct plugin_api* rb;
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unsigned framesPerSecond = VideoFrequency;
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unsigned framesPerSecond = VideoFrequency;
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@ -180,31 +124,6 @@ int settings_to_dip(struct pacman_settings settings)
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);
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);
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}
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}
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int pacbox_menu_cb(int key, int m)
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{
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(void)m;
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switch(key)
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{
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#ifdef MENU_ENTER2
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case MENU_ENTER2:
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#endif
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case MENU_ENTER:
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key = BUTTON_NONE; /* eat the downpress, next menu reacts on release */
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break;
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#ifdef MENU_ENTER2
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case MENU_ENTER2 | BUTTON_REL:
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#endif
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case MENU_ENTER | BUTTON_REL:
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key = MENU_ENTER; /* fake downpress, next menu doesn't like release */
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break;
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}
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return key;
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}
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bool pacbox_menu(void)
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bool pacbox_menu(void)
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{
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{
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int m;
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int m;
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@ -253,7 +172,7 @@ bool pacbox_menu(void)
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};
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};
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m = rb->menu_init(items, sizeof(items) / sizeof(*items),
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m = rb->menu_init(items, sizeof(items) / sizeof(*items),
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pacbox_menu_cb, NULL, NULL, NULL);
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NULL, NULL, NULL, NULL);
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rb->button_clear_queue();
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rb->button_clear_queue();
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@ -331,14 +250,11 @@ bool pacbox_menu(void)
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*/
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*/
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int gameProc( void )
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int gameProc( void )
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{
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{
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int x,y;
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int x;
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int fps;
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int fps;
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char str[80];
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char str[80];
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int status;
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int status;
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long end_time;
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long end_time;
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unsigned char* vbuf = video_buffer;
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fb_data* dst;
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fb_data* next_dst;
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/* Run the machine for one frame (1/60th second) */
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/* Run the machine for one frame (1/60th second) */
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run();
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run();
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@ -348,11 +264,7 @@ int gameProc( void )
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/* Check the button status */
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/* Check the button status */
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status = rb->button_status();
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status = rb->button_status();
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#ifdef PACMAN_MENU
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if ((status & PACMAN_MENU) == PACMAN_MENU) {
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if (status & PACMAN_MENU) {
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#else
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if (rb->button_hold()) {
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#endif
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end_time = *rb->current_tick;
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end_time = *rb->current_tick;
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x = pacbox_menu();
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x = pacbox_menu();
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rb->lcd_clear_display();
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rb->lcd_clear_display();
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@ -389,80 +301,11 @@ int gameProc( void )
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the sprites on top. Even with the memcpy, this is faster than redrawing
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the sprites on top. Even with the memcpy, this is faster than redrawing
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the whole background.
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the whole background.
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*/
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*/
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renderBackground( background );
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rb->memcpy(video_buffer,background,sizeof(video_buffer));
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renderSprites( video_buffer );
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#ifdef HAVE_LCD_COLOR
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renderBackground( video_buffer );
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#if (LCD_WIDTH >= 224) && (LCD_HEIGHT >= 288)
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renderSprites( video_buffer );
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/* Native resolution = 224x288 */
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(void)next_dst;
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blit_display(rb->lcd_framebuffer,video_buffer);
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dst=&rb->lcd_framebuffer[YOFS*LCD_WIDTH+XOFS];
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for (y=0;y<ScreenHeight;y++) {
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for (x=0;x<ScreenWidth;x++) {
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*(dst++) = palette[*(vbuf++)];
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}
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dst += XOFS*2;
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}
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#elif (LCD_WIDTH >= 288) && (LCD_HEIGHT >= 224)
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/* Native resolution - rotated 90 degrees = 288x224 */
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next_dst=&rb->lcd_framebuffer[YOFS*LCD_WIDTH+XOFS+ScreenHeight-1];
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for( y=ScreenHeight-1; y>=0; y-- ) {
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dst = (next_dst--);
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for( x=0; x<ScreenWidth; x++ ) {
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*dst = palette[*(vbuf++)];
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dst+=LCD_WIDTH;
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}
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}
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#elif (LCD_WIDTH >= 216) && (LCD_HEIGHT >= 168)
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/* 0.75 scaling - display 3 out of 4 pixels = 216x168
|
|
||||||
Skipping pixel #2 out of 4 seems to give the most legible display
|
|
||||||
*/
|
|
||||||
next_dst=&rb->lcd_framebuffer[YOFS*LCD_WIDTH+XOFS+((ScreenHeight*3)/4)-1];
|
|
||||||
for (y=ScreenHeight-1;y >= 0; y--) {
|
|
||||||
if ((y & 3) != 1) {
|
|
||||||
dst = (next_dst--);
|
|
||||||
for (x=0;x<ScreenWidth;x++) {
|
|
||||||
if ((x & 3) == 1) { vbuf++; }
|
|
||||||
else {
|
|
||||||
*dst = palette[*(vbuf++)];
|
|
||||||
dst+=LCD_WIDTH;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
vbuf+=ScreenWidth;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
#elif (LCD_WIDTH >= 144) && (LCD_HEIGHT >= 112)
|
|
||||||
/* 0.5 scaling - display every other pixel = 144x112 */
|
|
||||||
next_dst=&rb->lcd_framebuffer[YOFS*LCD_WIDTH+XOFS+ScreenHeight/2-1];
|
|
||||||
for (y=(ScreenHeight/2)-1;y >= 0; y--) {
|
|
||||||
dst = (next_dst--);
|
|
||||||
for (x=0;x<ScreenWidth/2;x++) {
|
|
||||||
*dst = palette[*(vbuf)];
|
|
||||||
vbuf+=2;
|
|
||||||
dst+=LCD_WIDTH;
|
|
||||||
}
|
|
||||||
vbuf+=ScreenWidth;
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
#else /* Greyscale LCDs */
|
|
||||||
#if (LCD_WIDTH >= 144) && (LCD_HEIGHT >= 112)
|
|
||||||
#if LCD_PIXELFORMAT == VERTICAL_PACKING
|
|
||||||
/* 0.5 scaling - display every other pixel = 144x112 */
|
|
||||||
next_dst=&rb->lcd_framebuffer[YOFS/4*LCD_WIDTH+XOFS+ScreenHeight/2-1];
|
|
||||||
for (y=(ScreenHeight/2)-1;y >= 0; y--) {
|
|
||||||
dst = (next_dst--);
|
|
||||||
for (x=0;x<ScreenWidth/8;x++) {
|
|
||||||
*dst = (palette[*(vbuf+6)]<<6) | (palette[*(vbuf+4)] << 4) | (palette[*(vbuf+2)] << 2) | palette[*(vbuf)];
|
|
||||||
vbuf+=8;
|
|
||||||
dst+=LCD_WIDTH;
|
|
||||||
}
|
|
||||||
vbuf+=ScreenWidth;
|
|
||||||
}
|
|
||||||
#endif /* Vertical Packing */
|
|
||||||
#endif /* Size >= 144x112 */
|
|
||||||
#endif /* Not Colour */
|
|
||||||
|
|
||||||
if (settings.showfps) {
|
if (settings.showfps) {
|
||||||
fps = (video_frames*HZ*100) / (*rb->current_tick-start_time);
|
fps = (video_frames*HZ*100) / (*rb->current_tick-start_time);
|
||||||
|
|
@ -519,7 +362,7 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
|
||||||
settings.numlives = 2; /* 3 lives */
|
settings.numlives = 2; /* 3 lives */
|
||||||
settings.bonus = 0; /* 10000 points */
|
settings.bonus = 0; /* 10000 points */
|
||||||
settings.ghostnames = 0; /* Normal names */
|
settings.ghostnames = 0; /* Normal names */
|
||||||
settings.showfps = 0; /* Do not show FPS */
|
settings.showfps = 1; /* Do not show FPS */
|
||||||
|
|
||||||
/* Initialise the hardware */
|
/* Initialise the hardware */
|
||||||
init_PacmanMachine(settings_to_dip(settings));
|
init_PacmanMachine(settings_to_dip(settings));
|
||||||
|
|
|
||||||
91
apps/plugins/pacbox/pacbox.h
Normal file
91
apps/plugins/pacbox/pacbox.h
Normal file
|
|
@ -0,0 +1,91 @@
|
||||||
|
/***************************************************************************
|
||||||
|
* __________ __ ___.
|
||||||
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||||||
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||||||
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||||||
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||||||
|
* \/ \/ \/ \/ \/
|
||||||
|
* $Id$
|
||||||
|
*
|
||||||
|
* Pacbox - a Pacman Emulator for Rockbox
|
||||||
|
*
|
||||||
|
* Based on PIE - Pacman Instructional Emulator
|
||||||
|
*
|
||||||
|
* Copyright (c) 1997-2003,2004 Alessandro Scotti
|
||||||
|
* http://www.ascotti.org/
|
||||||
|
*
|
||||||
|
* All files in this archive are subject to the GNU General Public License.
|
||||||
|
* See the file COPYING in the source tree root for full license agreement.
|
||||||
|
*
|
||||||
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
||||||
|
* KIND, either express or implied.
|
||||||
|
*
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
/* Platform-specific defines - used in both C and ASM files */
|
||||||
|
|
||||||
|
#ifndef _PACBOX_H
|
||||||
|
#define _PACBOX_H
|
||||||
|
|
||||||
|
#include "config.h"
|
||||||
|
|
||||||
|
#if CONFIG_KEYPAD == IPOD_4G_PAD
|
||||||
|
|
||||||
|
#define PACMAN_UP BUTTON_RIGHT
|
||||||
|
#define PACMAN_DOWN BUTTON_LEFT
|
||||||
|
#define PACMAN_LEFT BUTTON_MENU
|
||||||
|
#define PACMAN_RIGHT BUTTON_PLAY
|
||||||
|
#define PACMAN_1UP BUTTON_SELECT
|
||||||
|
#define PACMAN_COIN BUTTON_SELECT
|
||||||
|
#define PACMAN_MENU (BUTTON_MENU | BUTTON_SELECT)
|
||||||
|
|
||||||
|
#elif CONFIG_KEYPAD == IRIVER_H100_PAD || CONFIG_KEYPAD == IRIVER_H300_PAD
|
||||||
|
|
||||||
|
#define PACMAN_UP BUTTON_RIGHT
|
||||||
|
#define PACMAN_DOWN BUTTON_LEFT
|
||||||
|
#define PACMAN_LEFT BUTTON_UP
|
||||||
|
#define PACMAN_RIGHT BUTTON_DOWN
|
||||||
|
#define PACMAN_1UP BUTTON_SELECT
|
||||||
|
#define PACMAN_2UP BUTTON_ON
|
||||||
|
#define PACMAN_COIN BUTTON_REC
|
||||||
|
#define PACMAN_MENU BUTTON_MODE
|
||||||
|
|
||||||
|
#elif CONFIG_KEYPAD == GIGABEAT_PAD
|
||||||
|
|
||||||
|
#define PACMAN_UP BUTTON_UP
|
||||||
|
#define PACMAN_DOWN BUTTON_DOWN
|
||||||
|
#define PACMAN_LEFT BUTTON_LEFT
|
||||||
|
#define PACMAN_RIGHT BUTTON_RIGHT
|
||||||
|
#define PACMAN_1UP BUTTON_SELECT
|
||||||
|
#define PACMAN_2UP BUTTON_POWER
|
||||||
|
#define PACMAN_COIN BUTTON_A
|
||||||
|
#define PACMAN_MENU BUTTON_MENU
|
||||||
|
|
||||||
|
#elif CONFIG_KEYPAD == IAUDIO_X5_PAD
|
||||||
|
|
||||||
|
#define PACMAN_UP BUTTON_RIGHT
|
||||||
|
#define PACMAN_DOWN BUTTON_LEFT
|
||||||
|
#define PACMAN_LEFT BUTTON_UP
|
||||||
|
#define PACMAN_RIGHT BUTTON_DOWN
|
||||||
|
#define PACMAN_1UP BUTTON_SELECT
|
||||||
|
#define PACMAN_2UP BUTTON_POWER
|
||||||
|
#define PACMAN_COIN BUTTON_REC
|
||||||
|
#define PACMAN_MENU BUTTON_PLAY
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if (LCD_HEIGHT >= 288)
|
||||||
|
#define XOFS ((LCD_WIDTH-224)/2)
|
||||||
|
#define YOFS ((LCD_HEIGHT-288)/2)
|
||||||
|
#elif (LCD_WIDTH >= 288)
|
||||||
|
#define XOFS ((LCD_WIDTH-288)/2)
|
||||||
|
#define YOFS ((LCD_HEIGHT-224)/2)
|
||||||
|
#elif (LCD_WIDTH >= 220)
|
||||||
|
#define XOFS ((LCD_WIDTH-(288*3/4))/2)
|
||||||
|
#define YOFS ((LCD_HEIGHT-(224*3/4))/2)
|
||||||
|
#elif (LCD_WIDTH >= 144)
|
||||||
|
#define XOFS ((LCD_WIDTH-288/2)/2)
|
||||||
|
#define YOFS ((LCD_HEIGHT-224/2)/2)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif
|
||||||
130
apps/plugins/pacbox/pacbox_arm.S
Normal file
130
apps/plugins/pacbox/pacbox_arm.S
Normal file
|
|
@ -0,0 +1,130 @@
|
||||||
|
/***************************************************************************
|
||||||
|
* __________ __ ___.
|
||||||
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||||||
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||||||
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||||||
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||||||
|
* \/ \/ \/ \/ \/
|
||||||
|
* $Id$
|
||||||
|
*
|
||||||
|
* Pacbox - a Pacman Emulator for Rockbox
|
||||||
|
*
|
||||||
|
* Based on PIE - Pacman Instructional Emulator
|
||||||
|
*
|
||||||
|
* Copyright (c) 1997-2003,2004 Alessandro Scotti
|
||||||
|
*
|
||||||
|
* All files in this archive are subject to the GNU General Public License.
|
||||||
|
* See the file COPYING in the source tree root for full license agreement.
|
||||||
|
*
|
||||||
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
||||||
|
* KIND, either express or implied.
|
||||||
|
*
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
#include "pacbox.h"
|
||||||
|
|
||||||
|
.section .icode,"ax",%progbits
|
||||||
|
.global blit_display
|
||||||
|
|
||||||
|
/* void blit_display(fb_data* lcd_framebuffer, unsigned char* vbuf)
|
||||||
|
|
||||||
|
next_dst=&lcd_framebuffer[YOFS*LCD_WIDTH+XOFS+ScreenHeight-1];
|
||||||
|
for( y=ScreenHeight; y>0; y-- ) {
|
||||||
|
dst = (next_dst--);
|
||||||
|
for( x=ScreenWidth; x>0; x-- ) {
|
||||||
|
*dst = palette[*(vbuf++)];
|
||||||
|
dst+=LCD_WIDTH;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifdef HAVE_LCD_COLOR
|
||||||
|
#if (LCD_WIDTH >= 288) && (LCD_HEIGHT >= 224)
|
||||||
|
|
||||||
|
blit_display:
|
||||||
|
stmdb sp!, {r4-r12, lr}
|
||||||
|
|
||||||
|
add r3, r0, #5696
|
||||||
|
add r3, r3, #24 @ 5720 = (2*(YOFS*LCD_WIDTH+XOFS+ScreenHeight-4))
|
||||||
|
ldr r0, =palette
|
||||||
|
mov lr, #288 @ y = 288
|
||||||
|
|
||||||
|
mov r12, #224*3
|
||||||
|
|
||||||
|
loop_y: mov r2, r3 @ r2 = next_dst
|
||||||
|
sub r3, r3, #8 @ next_dst-=4
|
||||||
|
|
||||||
|
mov ip, #224 @ x = 224
|
||||||
|
|
||||||
|
/* store 2 input bytes from the next four lines in r7-r10 */
|
||||||
|
loop_x:
|
||||||
|
ldrh r8, [r1, #224] @ r8 = vbuf[224]
|
||||||
|
ldrh r7, [r1] @ r7 = vbuf[0] ; vbuf += 2;
|
||||||
|
add r1, r1, #448
|
||||||
|
ldrh r10, [r1, #224] @ r8 = vbuf[224]
|
||||||
|
ldrh r9, [r1], #2 @ r7 = vbuf[0] ; vbuf += 2;
|
||||||
|
sub r1, r1, #448
|
||||||
|
|
||||||
|
|
||||||
|
/* Convert high bytes of r7-r10 into palette entries in r5 and r6 */
|
||||||
|
mov r6, r7, lsr #8
|
||||||
|
mov r6, r6, lsl #1
|
||||||
|
ldrh r6, [r6, r0] @ r6 = palette[hi(r7]]
|
||||||
|
|
||||||
|
mov r11, r8, lsr #8
|
||||||
|
mov r11, r11, lsl #1
|
||||||
|
ldrh r11, [r11, r0] @ r11 = palette[hi(r8]]
|
||||||
|
|
||||||
|
orr r6, r11, r6, lsl #16 @ r6 = palette[hi(r8]]
|
||||||
|
@ | (palette[hi(r7)] << 16)
|
||||||
|
|
||||||
|
mov r5, r9, lsr #8
|
||||||
|
mov r5, r5, lsl #1
|
||||||
|
ldrh r5, [r5, r0] @ r5 = palette[hi(r9]]
|
||||||
|
|
||||||
|
mov r11, r10, lsr #8
|
||||||
|
mov r11, r11, lsl #1
|
||||||
|
ldrh r11, [r11, r0] @ r11 = palette[hi(r10)]]
|
||||||
|
|
||||||
|
orr r5, r11, r5, lsl #16 @ r5 = palette[hi(r10]]
|
||||||
|
@ | (palette[hi(r9)] << 16)
|
||||||
|
|
||||||
|
/* Convert low bytes of r7-r10 into palette entries in r7 and r8 */
|
||||||
|
and r7, r7, #0xff
|
||||||
|
mov r7, r7, lsl #1
|
||||||
|
ldrh r7, [r7, r0]
|
||||||
|
|
||||||
|
and r8, r8, #0xff
|
||||||
|
mov r8, r8, lsl #1
|
||||||
|
ldrh r8, [r8, r0]
|
||||||
|
|
||||||
|
orr r8, r8, r7, lsl #16
|
||||||
|
|
||||||
|
and r9, r9, #0xff
|
||||||
|
mov r9, r9, lsl #1
|
||||||
|
ldrh r9, [r9, r0]
|
||||||
|
|
||||||
|
and r10, r10, #0xff
|
||||||
|
mov r10, r10, lsl #1
|
||||||
|
ldrh r10, [r10, r0]
|
||||||
|
|
||||||
|
orr r7, r10, r9, lsl #16
|
||||||
|
|
||||||
|
/* Now write the 8 pixels to the screen */
|
||||||
|
stmia r2!, {r7, r8}
|
||||||
|
add r2, r2, #(LCD_WIDTH*2)-8 @ dst += LCD_WIDTH
|
||||||
|
|
||||||
|
stmia r2!, {r5, r6}
|
||||||
|
add r2, r2, #(LCD_WIDTH*2)-8 @ dst += LCD_WIDTH
|
||||||
|
|
||||||
|
/* end of x loop */
|
||||||
|
subs ip, ip, #2 @ x-=2
|
||||||
|
bne loop_x
|
||||||
|
|
||||||
|
/* end of y loop */
|
||||||
|
add r1, r1, #224*3 @ vbuf += 224*3
|
||||||
|
subs lr, lr, #4 @ y-=4
|
||||||
|
ldmeqia sp!, {r4-r12, pc}
|
||||||
|
b loop_y
|
||||||
|
#endif
|
||||||
|
#endif
|
||||||
105
apps/plugins/pacbox/pacbox_lcd.c
Normal file
105
apps/plugins/pacbox/pacbox_lcd.c
Normal file
|
|
@ -0,0 +1,105 @@
|
||||||
|
/***************************************************************************
|
||||||
|
* __________ __ ___.
|
||||||
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||||||
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||||||
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||||||
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||||||
|
* \/ \/ \/ \/ \/
|
||||||
|
* $Id$
|
||||||
|
*
|
||||||
|
* Pacbox - a Pacman Emulator for Rockbox
|
||||||
|
*
|
||||||
|
* Based on PIE - Pacman Instructional Emulator
|
||||||
|
*
|
||||||
|
* Copyright (c) 1997-2003,2004 Alessandro Scotti
|
||||||
|
*
|
||||||
|
* All files in this archive are subject to the GNU General Public License.
|
||||||
|
* See the file COPYING in the source tree root for full license agreement.
|
||||||
|
*
|
||||||
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
||||||
|
* KIND, either express or implied.
|
||||||
|
*
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
#include "pacbox.h"
|
||||||
|
#include "pacbox_lcd.h"
|
||||||
|
#include "arcade.h"
|
||||||
|
#include "hardware.h"
|
||||||
|
|
||||||
|
void blit_display(fb_data* lcd_framebuffer, unsigned char* vbuf)
|
||||||
|
{
|
||||||
|
fb_data* dst;
|
||||||
|
fb_data* next_dst;
|
||||||
|
int x,y;
|
||||||
|
|
||||||
|
#ifdef HAVE_LCD_COLOR
|
||||||
|
#if (LCD_WIDTH >= 224) && (LCD_HEIGHT >= 288)
|
||||||
|
/* Native resolution = 224x288 */
|
||||||
|
(void)next_dst;
|
||||||
|
dst=&lcd_framebuffer[YOFS*LCD_WIDTH+XOFS];
|
||||||
|
for (y=0;y<ScreenHeight;y++) {
|
||||||
|
for (x=0;x<ScreenWidth;x++) {
|
||||||
|
*(dst++) = palette[*(vbuf++)];
|
||||||
|
}
|
||||||
|
dst += XOFS*2;
|
||||||
|
}
|
||||||
|
#elif (LCD_WIDTH >= 288) && (LCD_HEIGHT >= 224)
|
||||||
|
/* Native resolution - rotated 90 degrees = 288x224 */
|
||||||
|
next_dst=&lcd_framebuffer[YOFS*LCD_WIDTH+XOFS+ScreenHeight-1];
|
||||||
|
for( y=ScreenHeight-1; y>=0; y-- ) {
|
||||||
|
dst = (next_dst--);
|
||||||
|
for( x=0; x<ScreenWidth; x++ ) {
|
||||||
|
*dst = palette[*(vbuf++)];
|
||||||
|
dst+=LCD_WIDTH;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
#elif (LCD_WIDTH >= 216) && (LCD_HEIGHT >= 168)
|
||||||
|
/* 0.75 scaling - display 3 out of 4 pixels = 216x168
|
||||||
|
Skipping pixel #2 out of 4 seems to give the most legible display
|
||||||
|
*/
|
||||||
|
next_dst=&lcd_framebuffer[YOFS*LCD_WIDTH+XOFS+((ScreenHeight*3)/4)-1];
|
||||||
|
for (y=ScreenHeight-1;y >= 0; y--) {
|
||||||
|
if ((y & 3) != 1) {
|
||||||
|
dst = (next_dst--);
|
||||||
|
for (x=0;x<ScreenWidth;x++) {
|
||||||
|
if ((x & 3) == 1) { vbuf++; }
|
||||||
|
else {
|
||||||
|
*dst = palette[*(vbuf++)];
|
||||||
|
dst+=LCD_WIDTH;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
vbuf+=ScreenWidth;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
#elif (LCD_WIDTH >= 144) && (LCD_HEIGHT >= 112)
|
||||||
|
/* 0.5 scaling - display every other pixel = 144x112 */
|
||||||
|
next_dst=&lcd_framebuffer[YOFS*LCD_WIDTH+XOFS+ScreenHeight/2-1];
|
||||||
|
for (y=(ScreenHeight/2)-1;y >= 0; y--) {
|
||||||
|
dst = (next_dst--);
|
||||||
|
for (x=0;x<ScreenWidth/2;x++) {
|
||||||
|
*dst = palette[*(vbuf)];
|
||||||
|
vbuf+=2;
|
||||||
|
dst+=LCD_WIDTH;
|
||||||
|
}
|
||||||
|
vbuf+=ScreenWidth;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
#else /* Greyscale LCDs */
|
||||||
|
#if (LCD_WIDTH >= 144) && (LCD_HEIGHT >= 112)
|
||||||
|
#if LCD_PIXELFORMAT == VERTICAL_PACKING
|
||||||
|
/* 0.5 scaling - display every other pixel = 144x112 */
|
||||||
|
next_dst=&lcd_framebuffer[YOFS/4*LCD_WIDTH+XOFS+ScreenHeight/2-1];
|
||||||
|
for (y=(ScreenHeight/2)-1;y >= 0; y--) {
|
||||||
|
dst = (next_dst--);
|
||||||
|
for (x=0;x<ScreenWidth/8;x++) {
|
||||||
|
*dst = (palette[*(vbuf+6)]<<6) | (palette[*(vbuf+4)] << 4) | (palette[*(vbuf+2)] << 2) | palette[*(vbuf)];
|
||||||
|
vbuf+=8;
|
||||||
|
dst+=LCD_WIDTH;
|
||||||
|
}
|
||||||
|
vbuf+=ScreenWidth;
|
||||||
|
}
|
||||||
|
#endif /* Vertical Packing */
|
||||||
|
#endif /* Size >= 144x112 */
|
||||||
|
#endif /* Not Colour */
|
||||||
|
}
|
||||||
31
apps/plugins/pacbox/pacbox_lcd.h
Normal file
31
apps/plugins/pacbox/pacbox_lcd.h
Normal file
|
|
@ -0,0 +1,31 @@
|
||||||
|
/***************************************************************************
|
||||||
|
* __________ __ ___.
|
||||||
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||||||
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||||||
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||||||
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||||||
|
* \/ \/ \/ \/ \/
|
||||||
|
* $Id$
|
||||||
|
*
|
||||||
|
* Pacbox - a Pacman Emulator for Rockbox
|
||||||
|
*
|
||||||
|
* Based on PIE - Pacman Instructional Emulator
|
||||||
|
*
|
||||||
|
* Copyright (c) 1997-2003,2004 Alessandro Scotti
|
||||||
|
*
|
||||||
|
* All files in this archive are subject to the GNU General Public License.
|
||||||
|
* See the file COPYING in the source tree root for full license agreement.
|
||||||
|
*
|
||||||
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
||||||
|
* KIND, either express or implied.
|
||||||
|
*
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
#ifndef _PACBOX_LCD_H
|
||||||
|
#define _PACBOX_LCD_H
|
||||||
|
|
||||||
|
#include "plugin.h"
|
||||||
|
|
||||||
|
void blit_display(fb_data* lcd_framebuffer, unsigned char* vbuf);
|
||||||
|
|
||||||
|
#endif
|
||||||
Loading…
Add table
Add a link
Reference in a new issue