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Use striped buffering for grayscale targets to make the buffer fit on iPod g3/g4. Also slightly faster (at least on H1x0) with the buffer in IRAM.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10470 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2006-08-07 02:44:18 +00:00
parent e6ff242184
commit ad9c9cc651
1 changed files with 27 additions and 12 deletions
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39
apps/plugins/doom/i_video.c
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@ -16,7 +16,10 @@
* GNU General Public License for more details.
*
* $Log$
* Revision 1.21 2006/08/07 01:57:29 amiconn
* Revision 1.22 2006/08/07 02:44:18 amiconn
* Use striped buffering for grayscale targets to make the buffer fit on iPod g3/g4. Also slightly faster (at least on H1x0) with the buffer in IRAM.
*
* Revision 1.21 2006-08-07 01:57:29 amiconn
* Fix red iPod g3 build.
*
* Revision 1.20 2006-08-07 01:46:41 amiconn
@ -103,7 +106,7 @@
#ifndef HAVE_LCD_COLOR
#include "../lib/gray.h"
static unsigned char graybuffer[LCD_HEIGHT*LCD_WIDTH]; /* off screen buffer */
static unsigned char graybuffer[8*LCD_WIDTH] IBSS_ATTR; /* off screen buffer */
static unsigned char *gbuf;
#define GRAYBUFSIZE (LCD_WIDTH*LCD_HEIGHT*4+200)
#endif
@ -193,7 +196,7 @@ inline void getkey()
event.type = ev_keyup;
hswitch=0;
}
#if CONFIG_KEYPAD == IPOD_4G_PAD
#if (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD)
/* Bring up the menu */
event.data1=KEY_ESCAPE;
#else
@ -457,23 +460,35 @@ void I_FinishUpdate (void)
unsigned char paletteIndex;
int x, y;
#ifdef HAVE_LCD_COLOR
for (y = 0; y < LCD_HEIGHT; y++)
{
for (x = 0; x < LCD_WIDTH; x++)
{
paletteIndex = d_screens[0][y*SCREENWIDTH + x];
#ifndef HAVE_LCD_COLOR
graybuffer[y * LCD_WIDTH + x]=palette[paletteIndex];
#else
rb->lcd_framebuffer[y * LCD_WIDTH + x] = palette[paletteIndex];
#endif
}
}
#ifndef HAVE_LCD_COLOR
gray_ub_gray_bitmap(graybuffer, 0, 0, LCD_WIDTH, LCD_HEIGHT);
#else
rb->lcd_update();
#endif
#else /* !HAVE_LCD_COLOR */
int yd = 0;
for (y = 0; y < LCD_HEIGHT; y++)
{
for (x = 0; x < LCD_WIDTH; x++)
{
paletteIndex = d_screens[0][y*SCREENWIDTH + x];
graybuffer[yd * LCD_WIDTH + x]=palette[paletteIndex];
}
if (++yd == 8)
{
gray_ub_gray_bitmap(graybuffer, 0, y & ~7, LCD_WIDTH, 8);
yd = 0;
}
}
if (yd > 0)
gray_ub_gray_bitmap(graybuffer, 0, y & ~7, LCD_WIDTH, yd);
#endif /* !HAVE_LCD_COLOR */
#endif
}
@ -506,7 +521,7 @@ void I_InitGraphics(void)
#ifndef HAVE_LCD_COLOR
gbuf=malloc(GRAYBUFSIZE);
gray_init(rb, gbuf, GRAYBUFSIZE, false, LCD_WIDTH, LCD_HEIGHT, 32,
gray_init(rb, gbuf, GRAYBUFSIZE, false, LCD_WIDTH, LCD_HEIGHT, 32,
3<<7 /* 1.5 */, NULL);
/* switch on grayscale overlay */
gray_show(true);