qi-hardware/ben-blinkenlights
1
0
Fork 0
mirror of git://projects.qi-hardware.com/ben-blinkenlights.git synced 2025-04-21 12:27:27 +03:00
Code Activity

ubb-vga2: non-contiguous allocation of frame buffer memory

Browse Source 
- ubb-vga.h (calloc_phys_vec), physmem.c: non-contiguous memory allocator
  (for now, without really considering any mapping to physical memory)
- Makefile (OBJS): added physmem.o
- ubb-vga.h (grabfb), grabfb.c (grabfb): API change for non-contiguous
  frame buffer
- ubb-vga.h (ppmimg), ppmimg.c (convert, ppmimg): API change for
  non-contiguous frame buffer
- ubb-vga.h (tstimg), tstimg.c (pixel, color_bars, grill, grid, sides,
  dot, line45, arc, printc, text, ctext, tstimg): API change for
  non-contiguous frame buffer
- tstimg.c (tstimg): we no longer need to clear the frame buffer
- ubb-vga.c (frame, session, main): use a vector of line buffers instead
  of a contiguous frame buffer
This commit is contained in:
Werner Almesberger
2011-04-29 13:04:02 -03:00
parent 71c9c7dd78
commit 623f3ccbe3
7 changed files with 77 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
ubb-vga/grabfb.c
View File

@@ -17,10 +17,10 @@
#include "ubb-vga.h"
void grabfb(void *f, int xres, int yres)
void grabfb(void **f, int xres, int yres)
{
uint32_t *fb = map(0x01d00000, 4*320*240);
uint8_t *p = f;
uint8_t *p, *q;
int x, y;
uint32_t pix;
uint8_t r, g, b;
@@ -28,14 +28,16 @@ void grabfb(void *f, int xres, int yres)
assert(xres == 640);
assert(yres == 480);
for (y = 0; y != 240; y++) {
p = f[y*2];
q = f[y*2+1];
for (x = 0; x != 320; x++) {
pix = *fb++;
r = pix >> 16;
g = pix >> 8;
b = pix;
p[0] = p[320] = ccube_map(r, g, b)*0x11;
*p = *q = ccube_map(r, g, b)*0x11;
p++;
q++;
}
p += 320;
}
}