rockbox/apps/plugins/rockboy/sound.h

#ifndef __SOUND_H__
#define __SOUND_H__

#include "defs.h"

struct sndchan
{
    int on;
    unsigned pos;
    int cnt, encnt, swcnt;
    int len, enlen, swlen;
    int freq;
    int envol, endir;
};

struct snd
{
    int rate;
    struct sndchan ch[4];
};

extern struct snd snd;

#if defined(ICODE_ATTR) && defined(CPU_ARM)
#undef ICODE_ATTR
#define ICODE_ATTR
#endif

byte sound_read(byte r) ICODE_ATTR;
void sound_write(byte r, byte b) ICODE_ATTR;
void sound_dirty(void) ICODE_ATTR;
void sound_reset(void);
void sound_mix(void) ICODE_ATTR;
void s1_init(void);
void s2_init(void);
void s3_init(void);
void s4_init(void);

#endif
Rockboy - gameboy emulation for rockbox, based on gnuboy. Still a bit early, but already playable on iRiver H1xx and the simulators. The archos recorder version is currently rather slow... git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6104 a1c6a512-1295-4272-9138-f99709370657 2005-03-02 23:49:38 +00:00			`#ifndef __SOUND_H__`
			`#define __SOUND_H__`

First part of graphics api rework. Special functions, parameter handling, pixel functions, lines and filled primitives done for black & white core, main display. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6856 a1c6a512-1295-4272-9138-f99709370657 2005-06-24 22:33:21 +00:00			`#include "defs.h"`
Rockboy - gameboy emulation for rockbox, based on gnuboy. Still a bit early, but already playable on iRiver H1xx and the simulators. The archos recorder version is currently rather slow... git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6104 a1c6a512-1295-4272-9138-f99709370657 2005-03-02 23:49:38 +00:00
			`struct sndchan`
			`{`
Major Rockboy update. 1) Adapt Rockboy to smaller screens (H10, X5, and iPod Nano). 2) Add the ability to use a preset palette on color targets. Choose 'Set Palette' from the main menu. 3) Clean up the code to remove any unused code and variables. 4) Changed tabs to spaces. 5) Disable reading and writing sound when sound is disabled. 6) Disbable writing to the RTC since it is not implemented yet. 7) Minor optimizations from WAC gnuboy CE and iBoy. 8) Massive clean up of code to make it appear consistent. 9) Change all C++ style comments to C style. 10) Completely reorganize dynarec. Add fixmes to all unimplemented opcodes. Add debug writes for all opcodes. Attempt to implement a few opcodes myself. 11) Silence some warnings when built using dynarec. 12) Minor reshuffling of IRAM, may or not offer a speed increase. 13) Include fixes found in the short-lived gnuboy CVS. All in all, there's about a 10% improvement on my test roms when sound is disabled and slight improvement with sound. Especially noticable when there are few sprites on screen and less action is occurring. See FS #6567. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12216 a1c6a512-1295-4272-9138-f99709370657 2007-02-06 21:41:08 +00:00			`int on;`
			`unsigned pos;`
			`int cnt, encnt, swcnt;`
			`int len, enlen, swlen;`
			`int freq;`
			`int envol, endir;`
Rockboy - gameboy emulation for rockbox, based on gnuboy. Still a bit early, but already playable on iRiver H1xx and the simulators. The archos recorder version is currently rather slow... git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6104 a1c6a512-1295-4272-9138-f99709370657 2005-03-02 23:49:38 +00:00			`};`

			`struct snd`
			`{`
Major Rockboy update. 1) Adapt Rockboy to smaller screens (H10, X5, and iPod Nano). 2) Add the ability to use a preset palette on color targets. Choose 'Set Palette' from the main menu. 3) Clean up the code to remove any unused code and variables. 4) Changed tabs to spaces. 5) Disable reading and writing sound when sound is disabled. 6) Disbable writing to the RTC since it is not implemented yet. 7) Minor optimizations from WAC gnuboy CE and iBoy. 8) Massive clean up of code to make it appear consistent. 9) Change all C++ style comments to C style. 10) Completely reorganize dynarec. Add fixmes to all unimplemented opcodes. Add debug writes for all opcodes. Attempt to implement a few opcodes myself. 11) Silence some warnings when built using dynarec. 12) Minor reshuffling of IRAM, may or not offer a speed increase. 13) Include fixes found in the short-lived gnuboy CVS. All in all, there's about a 10% improvement on my test roms when sound is disabled and slight improvement with sound. Especially noticable when there are few sprites on screen and less action is occurring. See FS #6567. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12216 a1c6a512-1295-4272-9138-f99709370657 2007-02-06 21:41:08 +00:00			`int rate;`
			`struct sndchan ch[4];`
Rockboy - gameboy emulation for rockbox, based on gnuboy. Still a bit early, but already playable on iRiver H1xx and the simulators. The archos recorder version is currently rather slow... git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6104 a1c6a512-1295-4272-9138-f99709370657 2005-03-02 23:49:38 +00:00			`};`

			`extern struct snd snd;`

Initial support for iPod color and video. The Nano has a 176x132 LCD, which is the first colour LCD smaller than the gameboy's 160x144 display - so it needs work to skip scanlines. Button handling still needs more work - only up/down/left/right/start are currently mapped. Code is removed from IRAM due to 'relocation truncated to fit: R_ARM_PC24' errors. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8400 a1c6a512-1295-4272-9138-f99709370657 2006-01-20 20:59:07 +00:00			`#if defined(ICODE_ATTR) && defined(CPU_ARM)`
			`#undef ICODE_ATTR`
			`#define ICODE_ATTR`
			`#endif`

Karl Kurbjun's patch #1407719: Here's another patch for rockboy that adds automatic frameskip (it's pretty rough as I haven't figured out an accurate timer), fullscreen support on the H300, and a bit of assembly and some IRAM stuff. I'm not sure if I'm doing the IRAM stuff correct though as it doesn't seem to make much of a difference if any. I've also added a statistics option that will show how many frames per second the gameboy is seeing (not what the player is getting) and what the frameskip is at. When you enable stats sometimes you have to go back into the menu and then come out to clear erronous values. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8397 a1c6a512-1295-4272-9138-f99709370657 2006-01-20 13:05:52 +00:00			`byte sound_read(byte r) ICODE_ATTR;`
Update for Rockboy: - fix scaling for other color screens than H300 - full menu rewrite to display choices properly - some small tweaks to code - some formatting updates git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10137 a1c6a512-1295-4272-9138-f99709370657 2006-06-19 01:47:45 +00:00			`void sound_write(byte r, byte b) ICODE_ATTR;`
			`void sound_dirty(void) ICODE_ATTR;`
Rockboy - gameboy emulation for rockbox, based on gnuboy. Still a bit early, but already playable on iRiver H1xx and the simulators. The archos recorder version is currently rather slow... git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6104 a1c6a512-1295-4272-9138-f99709370657 2005-03-02 23:49:38 +00:00			`void sound_reset(void);`
Update for Rockboy: - fix scaling for other color screens than H300 - full menu rewrite to display choices properly - some small tweaks to code - some formatting updates git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10137 a1c6a512-1295-4272-9138-f99709370657 2006-06-19 01:47:45 +00:00			`void sound_mix(void) ICODE_ATTR;`
Rockboy - gameboy emulation for rockbox, based on gnuboy. Still a bit early, but already playable on iRiver H1xx and the simulators. The archos recorder version is currently rather slow... git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6104 a1c6a512-1295-4272-9138-f99709370657 2005-03-02 23:49:38 +00:00			`void s1_init(void);`
			`void s2_init(void);`
			`void s3_init(void);`
			`void s4_init(void);`

			`#endif`