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console: simplify screendump

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Screendumps are alot simpler as we can update non-active
QemuConsoles now.  So we only need to update the QemuConsole
we want write out, then dump the DisplaySurface content into
a ppm file.  Done.

No console switching needed.  No special support code in the
gfx card emulation needed.  Zap it all.  Also move ppm_save
out of the vga code and next to the qmp_screendump function.

For now screen dumping is limited to console #0 (like it used
to be), even though it is dead simple to extend it to other
consoles.  I wanna finish the console cleanup before setting
new qapi interfaces into stone.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Igor Mitsyanko <i.mitsyanko@gmail.com>
This commit is contained in:
Gerd Hoffmann 2013-03-12 14:48:31 +01:00
parent 321f048d24
commit 2c62f08ddb
26 changed files with 74 additions and 452 deletions
Download patch file Download diff file Expand all files Collapse all files

86
hw/display/omap_lcdc.c
View file

@ -227,90 +227,6 @@ static void omap_update_display(void *opaque)
omap_lcd->invalidate = 0;
}
static void omap_ppm_save(const char *filename, uint8_t *data,
int w, int h, int linesize, Error **errp)
{
FILE *f;
uint8_t *d, *d1;
unsigned int v;
int ret, y, x, bpp;
f = fopen(filename, "wb");
if (!f) {
error_setg(errp, "failed to open file '%s': %s", filename,
strerror(errno));
return;
}
ret = fprintf(f, "P6\n%d %d\n%d\n", w, h, 255);
if (ret < 0) {
goto write_err;
}
d1 = data;
bpp = linesize / w;
for (y = 0; y < h; y ++) {
d = d1;
for (x = 0; x < w; x ++) {
v = *(uint32_t *) d;
switch (bpp) {
case 2:
ret = fputc((v >> 8) & 0xf8, f);
if (ret == EOF) {
goto write_err;
}
ret = fputc((v >> 3) & 0xfc, f);
if (ret == EOF) {
goto write_err;
}
ret = fputc((v << 3) & 0xf8, f);
if (ret == EOF) {
goto write_err;
}
break;
case 3:
case 4:
default:
ret = fputc((v >> 16) & 0xff, f);
if (ret == EOF) {
goto write_err;
}
ret = fputc((v >> 8) & 0xff, f);
if (ret == EOF) {
goto write_err;
}
ret = fputc((v) & 0xff, f);
if (ret == EOF) {
goto write_err;
}
break;
}
d += bpp;
}
d1 += linesize;
}
out:
fclose(f);
return;
write_err:
error_setg(errp, "failed to write to file '%s': %s", filename,
strerror(errno));
unlink(filename);
goto out;
}
static void omap_screen_dump(void *opaque, const char *filename, bool cswitch,
Error **errp)
{
struct omap_lcd_panel_s *omap_lcd = opaque;
DisplaySurface *surface = qemu_console_surface(omap_lcd->con);
omap_update_display(opaque);
if (omap_lcd && surface_data(surface))
omap_ppm_save(filename, surface_data(surface),
omap_lcd->width, omap_lcd->height,
surface_stride(surface), errp);
}
static void omap_invalidate_display(void *opaque) {
struct omap_lcd_panel_s *omap_lcd = opaque;
omap_lcd->invalidate = 1;
@ -487,7 +403,7 @@ struct omap_lcd_panel_s *omap_lcdc_init(MemoryRegion *sysmem,
s->con = graphic_console_init(omap_update_display,
omap_invalidate_display,
omap_screen_dump, NULL, s);
NULL, s);
return s;
}