From ad8b24d90c1599421202f44dba94a645501ca81d Mon Sep 17 00:00:00 2001 From: Dave Chapman Date: Mon, 13 Mar 2006 01:42:11 +0000 Subject: 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 --- apps/plugins/pacbox/Makefile | 7 +- apps/plugins/pacbox/SOURCES | 9 ++ apps/plugins/pacbox/arcade.c | 63 +++++++++----- apps/plugins/pacbox/pacbox.c | 179 +++------------------------------------ apps/plugins/pacbox/pacbox.h | 91 ++++++++++++++++++++ apps/plugins/pacbox/pacbox_arm.S | 130 ++++++++++++++++++++++++++++ apps/plugins/pacbox/pacbox_lcd.c | 105 +++++++++++++++++++++++ apps/plugins/pacbox/pacbox_lcd.h | 31 +++++++ 8 files changed, 423 insertions(+), 192 deletions(-) create mode 100644 apps/plugins/pacbox/SOURCES create mode 100644 apps/plugins/pacbox/pacbox.h create mode 100644 apps/plugins/pacbox/pacbox_arm.S create mode 100644 apps/plugins/pacbox/pacbox_lcd.c create mode 100644 apps/plugins/pacbox/pacbox_lcd.h diff --git a/apps/plugins/pacbox/Makefile b/apps/plugins/pacbox/Makefile index 817c6d451a..0b7f4b9e15 100644 --- a/apps/plugins/pacbox/Makefile +++ b/apps/plugins/pacbox/Makefile @@ -19,10 +19,13 @@ endif LINKFILE := $(OBJDIR)/link.lds DEPFILE = $(OBJDIR)/dep-pacbox -SRC = arcade.c pacbox.c hardware.c z80.c + +# This sets up 'SRC' based on the files mentioned in SOURCES +include $(TOOLSDIR)/makesrc.inc SOURCES = $(SRC) -OBJS := $(SRC:%.c=$(OBJDIR)/%.o) +OBJS2 := $(SRC:%.c=$(OBJDIR)/%.o) +OBJS = $(patsubst %.S, $(OBJDIR)/%.o, $(OBJS2)) DIRS = . LDS := ../plugin.lds diff --git a/apps/plugins/pacbox/SOURCES b/apps/plugins/pacbox/SOURCES new file mode 100644 index 0000000000..3d6145ddce --- /dev/null +++ b/apps/plugins/pacbox/SOURCES @@ -0,0 +1,9 @@ +arcade.c +pacbox.c +hardware.c +z80.c +#if (CONFIG_CPU == PP5020) && (LCD_WIDTH >= 288) && (LCD_HEIGHT >= 224) +pacbox_arm.S +#else +pacbox_lcd.c +#endif diff --git a/apps/plugins/pacbox/arcade.c b/apps/plugins/pacbox/arcade.c index e7bf124700..dc3ea0c9ba 100644 --- a/apps/plugins/pacbox/arcade.c +++ b/apps/plugins/pacbox/arcade.c @@ -252,19 +252,19 @@ static unsigned decodePaletteByte( unsigned char value ) unsigned bit0, bit1, bit2; unsigned red, green, blue; - bit0 = (value >> 0) & 0x01; - bit1 = (value >> 1) & 0x01; - bit2 = (value >> 2) & 0x01; - red = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; + bit0 = (value >> 0) & 0x01; + bit1 = (value >> 1) & 0x01; + bit2 = (value >> 2) & 0x01; + red = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; bit0 = (value >> 3) & 0x01; - bit1 = (value >> 4) & 0x01; - bit2 = (value >> 5) & 0x01; - green = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; + bit1 = (value >> 4) & 0x01; + bit2 = (value >> 5) & 0x01; + green = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; bit0 = 0; - bit1 = (value >> 6) & 0x01; - bit2 = (value >> 7) & 0x01; + bit1 = (value >> 6) & 0x01; + bit2 = (value >> 7) & 0x01; blue = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; return (blue << 16 ) | (green << 8) | red; @@ -428,6 +428,7 @@ inline void drawSprite( unsigned char * buffer, int index ) { struct PacmanSprite ps = sprites_[index]; int x,y; + char * s, * s2; // Exit now if sprite not visible at all if( (ps.color == 0) || (ps.x >= ScreenWidth) || (ps.y < 16) || (ps.y >= (ScreenHeight-32)) ) { @@ -436,59 +437,77 @@ inline void drawSprite( unsigned char * buffer, int index ) // Clip the sprite coordinates to cut the parts that fall off the screen int start_x = (ps.x < 0) ? 0 : ps.x; - int end_x = (ps.x < (ScreenWidth-16)) ? ps.x+16 : ScreenWidth; + int end_x = (ps.x < (ScreenWidth-16)) ? ps.x+15 : ScreenWidth-1; // Prepare variables for drawing int color = (ps.color & 0x3F)*4; unsigned char * spritemap_base = spritemap_ + ((ps.n & 0x3F)*256); buffer += ScreenWidth*ps.y; + s2 = &spritemap_base[start_x-ps.x]; + + dirty_[(start_x >> 3) + (ps.y >> 3)*28] = 1; + dirty_[(start_x >> 3) + 1 + (ps.y >> 3)*28] = 1; + dirty_[(end_x >> 3) + (ps.y >> 3)*28] = 1; + dirty_[(start_x >> 3) + ((ps.y >> 3)+1)*28] = 1; + dirty_[(start_x >> 3) + 1 + ((ps.y >> 3)+1)*28] = 1; + dirty_[(end_x >> 3) + ((ps.y >> 3)+1)*28] = 1; + dirty_[(start_x >> 3) + ((ps.y+15) >> 3)*28] = 1; + dirty_[(start_x >> 3) + 1 + ((ps.y+15) >> 3)*28] = 1; + dirty_[(end_x >> 3) + ((ps.y+15) >> 3)*28] = 1; // Draw the 16x16 sprite if( ps.mode == 0 ) { // Normal // Draw the 16x16 sprite - for( y=0; y<16; y++ ) { - char* s = &spritemap_base[start_x-ps.x+y*16]; - for( x=start_x; x=0; y-- ) { + s = s2; + for( x=start_x; x<=end_x; x++ ) { int c = *(s++); if( c ) { buffer[x] = c + color; } } buffer += ScreenWidth; + s2 += 16; } } else if( ps.mode == 1 ) { // Flip Y - for( y=0; y<16; y++ ) { - char* s = &spritemap_base[start_x-ps.x+(15-y)*16]; - for( x=start_x; x=0; y-- ) { + s = s2; + for( x=start_x; x<=end_x; x++ ) { int c = *(s++); if( c ) { buffer[x] = c + color; } } buffer += ScreenWidth; + s2 -= 16; } } else if( ps.mode == 2 ) { // Flip X - for( y=0; y<16; y++ ) { - char* s = &spritemap_base[15-start_x+ps.x+y*16]; - for( x=start_x; x=-0; y-- ) { + s = s2; + for( x=start_x; x<=end_x; x++ ) { int c = *(s--); if( c ) { buffer[x] = c + color; } } buffer += ScreenWidth; + s2 += 16; } } else { // Flip X and Y - for( y=0; y<16; y++ ) { - char* s = &spritemap_base[15-start_x+ps.x+(15-y)*16]; - for( x=start_x; x=0; y-- ) { + s = s2; + for( x=start_x; x<=end_x; x++ ) { int c = *(s--); if( c ) { buffer[x] = c + color; } } buffer += ScreenWidth; + s2 -= 16; } } } diff --git a/apps/plugins/pacbox/pacbox.c b/apps/plugins/pacbox/pacbox.c index 7177245d9f..f989a25608 100644 --- a/apps/plugins/pacbox/pacbox.c +++ b/apps/plugins/pacbox/pacbox.c @@ -24,6 +24,8 @@ #include "plugin.h" #include "arcade.h" +#include "pacbox.h" +#include "pacbox_lcd.h" PLUGIN_HEADER @@ -38,64 +40,6 @@ extern char iend[]; /* How many video frames (out of a possible 60) we display each second */ #define FPS 20 -#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 - -#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 - struct plugin_api* rb; unsigned framesPerSecond = VideoFrequency; @@ -180,31 +124,6 @@ int settings_to_dip(struct pacman_settings settings) ); } - - -int pacbox_menu_cb(int key, int m) -{ - (void)m; - switch(key) - { -#ifdef MENU_ENTER2 - case MENU_ENTER2: -#endif - case MENU_ENTER: - key = BUTTON_NONE; /* eat the downpress, next menu reacts on release */ - break; - -#ifdef MENU_ENTER2 - case MENU_ENTER2 | BUTTON_REL: -#endif - case MENU_ENTER | BUTTON_REL: - key = MENU_ENTER; /* fake downpress, next menu doesn't like release */ - break; - } - - return key; -} - bool pacbox_menu(void) { int m; @@ -253,7 +172,7 @@ bool pacbox_menu(void) }; m = rb->menu_init(items, sizeof(items) / sizeof(*items), - pacbox_menu_cb, NULL, NULL, NULL); + NULL, NULL, NULL, NULL); rb->button_clear_queue(); @@ -331,14 +250,11 @@ bool pacbox_menu(void) */ int gameProc( void ) { - int x,y; + int x; int fps; char str[80]; int status; long end_time; - unsigned char* vbuf = video_buffer; - fb_data* dst; - fb_data* next_dst; /* Run the machine for one frame (1/60th second) */ run(); @@ -348,11 +264,7 @@ int gameProc( void ) /* Check the button status */ status = rb->button_status(); -#ifdef PACMAN_MENU - if (status & PACMAN_MENU) { -#else - if (rb->button_hold()) { -#endif + if ((status & PACMAN_MENU) == PACMAN_MENU) { end_time = *rb->current_tick; x = pacbox_menu(); rb->lcd_clear_display(); @@ -389,80 +301,11 @@ int gameProc( void ) the sprites on top. Even with the memcpy, this is faster than redrawing the whole background. */ - renderBackground( background ); - rb->memcpy(video_buffer,background,sizeof(video_buffer)); - renderSprites( video_buffer ); - -#ifdef HAVE_LCD_COLOR -#if (LCD_WIDTH >= 224) && (LCD_HEIGHT >= 288) - /* Native resolution = 224x288 */ - (void)next_dst; - dst=&rb->lcd_framebuffer[YOFS*LCD_WIDTH+XOFS]; - for (y=0;y= 288) && (LCD_HEIGHT >= 224) - /* Native resolution - rotated 90 degrees = 288x224 */ - next_dst=&rb->lcd_framebuffer[YOFS*LCD_WIDTH+XOFS+ScreenHeight-1]; - for( y=ScreenHeight-1; y>=0; y-- ) { - dst = (next_dst--); - for( x=0; x= 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=&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= 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= 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= 144x112 */ -#endif /* Not Colour */ + + renderBackground( video_buffer ); + renderSprites( video_buffer ); + + blit_display(rb->lcd_framebuffer,video_buffer); if (settings.showfps) { 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.bonus = 0; /* 10000 points */ settings.ghostnames = 0; /* Normal names */ - settings.showfps = 0; /* Do not show FPS */ + settings.showfps = 1; /* Do not show FPS */ /* Initialise the hardware */ init_PacmanMachine(settings_to_dip(settings)); diff --git a/apps/plugins/pacbox/pacbox.h b/apps/plugins/pacbox/pacbox.h new file mode 100644 index 0000000000..84bd8a7be8 --- /dev/null +++ b/apps/plugins/pacbox/pacbox.h @@ -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 diff --git a/apps/plugins/pacbox/pacbox_arm.S b/apps/plugins/pacbox/pacbox_arm.S new file mode 100644 index 0000000000..ade3ad2de6 --- /dev/null +++ b/apps/plugins/pacbox/pacbox_arm.S @@ -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 diff --git a/apps/plugins/pacbox/pacbox_lcd.c b/apps/plugins/pacbox/pacbox_lcd.c new file mode 100644 index 0000000000..83931b1b68 --- /dev/null +++ b/apps/plugins/pacbox/pacbox_lcd.c @@ -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= 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= 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= 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= 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= 144x112 */ +#endif /* Not Colour */ +} diff --git a/apps/plugins/pacbox/pacbox_lcd.h b/apps/plugins/pacbox/pacbox_lcd.h new file mode 100644 index 0000000000..e1fbaa6a04 --- /dev/null +++ b/apps/plugins/pacbox/pacbox_lcd.h @@ -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 -- cgit v1.2.3