console: simplify screendump

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>

1 files changed, 0 insertions, 66 deletions

diff --git a/hw/display/vga.c b/hw/display/vga.c
index e37e8984bc..5d7684a94c 100644
--- a/hw/display/vga.c
+++ b/hw/display/vga.c
@@ -166,9 +166,6 @@ static uint32_t expand4[256];
 static uint16_t expand2[256];
 static uint8_t expand4to8[16];
 
-static void vga_screen_dump(void *opaque, const char *filename, bool cswitch,
-                            Error **errp);
-
 static void vga_update_memory_access(VGACommonState *s)
 {
     MemoryRegion *region, *old_region = s->chain4_alias;
@@ -2298,7 +2295,6 @@ void vga_common_init(VGACommonState *s)
     s->get_resolution = vga_get_resolution;
     s->update = vga_update_display;
     s->invalidate = vga_invalidate_display;
-    s->screen_dump = vga_screen_dump;
     s->text_update = vga_update_text;
     switch (vga_retrace_method) {
     case VGA_RETRACE_DUMB:
@@ -2393,65 +2389,3 @@ void vga_init_vbe(VGACommonState *s, MemoryRegion *system_memory)
                                 &s->vram_vbe);
     s->vbe_mapped = 1;
 }
-/********************************************************/
-/* vga screen dump */
-
-void ppm_save(const char *filename, struct DisplaySurface *ds, Error **errp)
-{
-    int width = pixman_image_get_width(ds->image);
-    int height = pixman_image_get_height(ds->image);
-    FILE *f;
-    int y;
-    int ret;
-    pixman_image_t *linebuf;
-
-    trace_ppm_save(filename, ds);
-    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", width, height, 255);
-    if (ret < 0) {
-        linebuf = NULL;
-        goto write_err;
-    }
-    linebuf = qemu_pixman_linebuf_create(PIXMAN_BE_r8g8b8, width);
-    for (y = 0; y < height; y++) {
-        qemu_pixman_linebuf_fill(linebuf, ds->image, width, 0, y);
-        clearerr(f);
-        ret = fwrite(pixman_image_get_data(linebuf), 1,
-                     pixman_image_get_stride(linebuf), f);
-        (void)ret;
-        if (ferror(f)) {
-            goto write_err;
-        }
-    }
-
-out:
-    qemu_pixman_image_unref(linebuf);
-    fclose(f);
-    return;
-
-write_err:
-    error_setg(errp, "failed to write to file '%s': %s", filename,
-               strerror(errno));
-    unlink(filename);
-    goto out;
-}
-
-/* save the vga display in a PPM image even if no display is
-   available */
-static void vga_screen_dump(void *opaque, const char *filename, bool cswitch,
-                            Error **errp)
-{
-    VGACommonState *s = opaque;
-    DisplaySurface *surface = qemu_console_surface(s->con);
-
-    if (cswitch) {
-        vga_invalidate_display(s);
-    }
-    graphic_hw_update(s->con);
-    ppm_save(filename, surface, errp);
-}