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>

hw/arm/musicpal.c

@@ -612,7 +612,7 @@ static int musicpal_lcd_init(SysBusDevice *dev)
     sysbus_init_mmio(dev, &s->iomem);
 
     s->con = graphic_console_init(lcd_refresh, lcd_invalidate,
-                                  NULL, NULL, s);
+                                  NULL, s);
     qemu_console_resize(s->con, 128*3, 64*3);
 
     qdev_init_gpio_in(&dev->qdev, musicpal_lcd_gpio_brigthness_in, 3);

hw/display/blizzard.c

@@ -933,18 +933,6 @@ static void blizzard_update_display(void *opaque)
     s->my[1] = 0;
 }
 
-static void blizzard_screen_dump(void *opaque, const char *filename,
-                                 bool cswitch, Error **errp)
-{
-    BlizzardState *s = (BlizzardState *) opaque;
-    DisplaySurface *surface = qemu_console_surface(s->con);
-
-    blizzard_update_display(opaque);
-    if (s && surface_data(surface)) {
-        ppm_save(filename, surface, errp);
-    }
-}
-
 #define DEPTH 8
 #include "blizzard_template.h"
 #define DEPTH 15
@@ -965,7 +953,7 @@ void *s1d13745_init(qemu_irq gpio_int)
 
     s->con = graphic_console_init(blizzard_update_display,
                                   blizzard_invalidate_display,
-                                  blizzard_screen_dump, NULL, s);
+                                  NULL, s);
     surface = qemu_console_surface(s->con);
 
     switch (surface_bits_per_pixel(surface)) {

hw/display/cirrus_vga.c

@@ -2911,7 +2911,7 @@ static int vga_initfn(ISADevice *dev)
     cirrus_init_common(&d->cirrus_vga, CIRRUS_ID_CLGD5430, 0,
                        isa_address_space(dev), isa_address_space_io(dev));
     s->con = graphic_console_init(s->update, s->invalidate,
-                                  s->screen_dump, s->text_update,
+                                  s->text_update,
                                   s);
     rom_add_vga(VGABIOS_CIRRUS_FILENAME);
     /* XXX ISA-LFB support */
@@ -2960,7 +2960,7 @@ static int pci_cirrus_vga_initfn(PCIDevice *dev)
      cirrus_init_common(s, device_id, 1, pci_address_space(dev),
                         pci_address_space_io(dev));
      s->vga.con = graphic_console_init(s->vga.update, s->vga.invalidate,
-                                       s->vga.screen_dump, s->vga.text_update,
+                                       s->vga.text_update,
                                        &s->vga);
 
      /* setup PCI */

hw/display/exynos4210_fimd.c

@@ -1901,7 +1901,7 @@ static int exynos4210_fimd_init(SysBusDevice *dev)
             "exynos4210.fimd", FIMD_REGS_SIZE);
     sysbus_init_mmio(dev, &s->iomem);
     s->console = graphic_console_init(exynos4210_fimd_update,
-                                  exynos4210_fimd_invalidate, NULL, NULL, s);
+                                      exynos4210_fimd_invalidate, NULL, s);
 
     return 0;
 }

hw/display/g364fb.c

@@ -294,77 +294,6 @@ static void g364fb_reset(G364State *s)
     g364fb_invalidate_display(s);
 }
 
-static void g364fb_screen_dump(void *opaque, const char *filename, bool cswitch,
-                               Error **errp)
-{
-    G364State *s = opaque;
-    int ret, y, x;
-    uint8_t index;
-    uint8_t *data_buffer;
-    FILE *f;
-
-    qemu_flush_coalesced_mmio_buffer();
-
-    if (s->depth != 8) {
-        error_setg(errp, "g364: unknown guest depth %d", s->depth);
-        return;
-    }
-
-    f = fopen(filename, "wb");
-    if (!f) {
-        error_setg(errp, "failed to open file '%s': %s", filename,
-                   strerror(errno));
-        return;
-    }
-
-    if (s->ctla & CTLA_FORCE_BLANK) {
-        /* blank screen */
-        ret = fprintf(f, "P4\n%d %d\n", s->width, s->height);
-        if (ret < 0) {
-            goto write_err;
-        }
-        for (y = 0; y < s->height; y++)
-            for (x = 0; x < s->width; x++) {
-                ret = fputc(0, f);
-                if (ret == EOF) {
-                    goto write_err;
-                }
-            }
-    } else {
-        data_buffer = s->vram + s->top_of_screen;
-        ret = fprintf(f, "P6\n%d %d\n%d\n", s->width, s->height, 255);
-        if (ret < 0) {
-            goto write_err;
-        }
-        for (y = 0; y < s->height; y++)
-            for (x = 0; x < s->width; x++, data_buffer++) {
-                index = *data_buffer;
-                ret = fputc(s->color_palette[index][0], f);
-                if (ret == EOF) {
-                    goto write_err;
-                }
-                ret = fputc(s->color_palette[index][1], f);
-                if (ret == EOF) {
-                    goto write_err;
-                }
-                ret = fputc(s->color_palette[index][2], f);
-                if (ret == EOF) {
-                    goto write_err;
-                }
-        }
-    }
-
-out:
-    fclose(f);
-    return;
-
-write_err:
-    error_setg(errp, "failed to write to file '%s': %s", filename,
-               strerror(errno));
-    unlink(filename);
-    goto out;
-}
-
 /* called for accesses to io ports */
 static uint64_t g364fb_ctrl_read(void *opaque,
                                  hwaddr addr,
@@ -552,7 +481,7 @@ static void g364fb_init(DeviceState *dev, G364State *s)
 
     s->con = graphic_console_init(g364fb_update_display,
                                   g364fb_invalidate_display,
-                                  g364fb_screen_dump, NULL, s);
+                                  NULL, s);
 
     memory_region_init_io(&s->mem_ctrl, &g364fb_ctrl_ops, s, "ctrl", 0x180000);
     memory_region_init_ram_ptr(&s->mem_vram, "vram",

hw/display/jazz_led.c

@@ -263,7 +263,6 @@ static int jazz_led_init(SysBusDevice *dev)
 
     s->con = graphic_console_init(jazz_led_update_display,
                                   jazz_led_invalidate_display,
-                                  NULL,
                                   jazz_led_text_update, s);
 
     return 0;

hw/display/milkymist-vgafb.c

@@ -280,7 +280,7 @@ static int milkymist_vgafb_init(SysBusDevice *dev)
 
     s->con = graphic_console_init(vgafb_update_display,
                                   vgafb_invalidate_display,
-                                  NULL, NULL, s);
+                                  NULL, s);
 
     return 0;
 }

hw/display/omap_lcdc.c

@@ -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;
 }

hw/display/pl110.c

@@ -454,7 +454,7 @@ static int pl110_init(SysBusDevice *dev)
     qdev_init_gpio_in(&s->busdev.qdev, pl110_mux_ctrl_set, 1);
     s->con = graphic_console_init(pl110_update_display,
                                   pl110_invalidate_display,
-                                  NULL, NULL, s);
+                                  NULL, s);
     return 0;
 }
 

hw/display/pxa2xx_lcd.c

@@ -1010,7 +1010,7 @@ PXA2xxLCDState *pxa2xx_lcdc_init(MemoryRegion *sysmem,
 
     s->con = graphic_console_init(pxa2xx_update_display,
                                   pxa2xx_invalidate_display,
-                                  NULL, NULL, s);
+                                  NULL, s);
     surface = qemu_console_surface(s->con);
 
     switch (surface_bits_per_pixel(surface)) {

hw/display/qxl.c

@@ -1772,26 +1772,6 @@ static void qxl_hw_invalidate(void *opaque)
     vga->invalidate(vga);
 }
 
-static void qxl_hw_screen_dump(void *opaque, const char *filename, bool cswitch,
-                               Error **errp)
-{
-    PCIQXLDevice *qxl = opaque;
-    VGACommonState *vga = &qxl->vga;
-
-    switch (qxl->mode) {
-    case QXL_MODE_COMPAT:
-    case QXL_MODE_NATIVE:
-        qxl_render_update(qxl);
-        ppm_save(filename, qxl->ssd.ds, errp);
-        break;
-    case QXL_MODE_VGA:
-        vga->screen_dump(vga, filename, cswitch, errp);
-        break;
-    default:
-        break;
-    }
-}
-
 static void qxl_hw_text_update(void *opaque, console_ch_t *chardata)
 {
     PCIQXLDevice *qxl = opaque;
@@ -2075,7 +2055,7 @@ static int qxl_init_primary(PCIDevice *dev)
     portio_list_add(qxl_vga_port_list, pci_address_space_io(dev), 0x3b0);
 
     vga->con = graphic_console_init(qxl_hw_update, qxl_hw_invalidate,
-                                    qxl_hw_screen_dump, qxl_hw_text_update,
+                                    qxl_hw_text_update,
                                     qxl);
     qxl->ssd.con = vga->con,
     qemu_spice_display_init_common(&qxl->ssd);

hw/display/sm501.c

@@ -1446,5 +1446,5 @@ void sm501_init(MemoryRegion *address_space_mem, uint32_t base,
 
     /* create qemu graphic console */
     s->con = graphic_console_init(sm501_update_display, NULL,
-                                  NULL, NULL, s);
+                                  NULL, s);
 }

hw/display/ssd0303.c

@@ -290,7 +290,7 @@ static int ssd0303_init(I2CSlave *i2c)
 
     s->con = graphic_console_init(ssd0303_update_display,
                                   ssd0303_invalidate_display,
-                                  NULL, NULL, s);
+                                  NULL, s);
     qemu_console_resize(s->con, 96 * MAGNIFY, 16 * MAGNIFY);
     return 0;
 }

hw/display/ssd0323.c

@@ -339,7 +339,7 @@ static int ssd0323_init(SSISlave *dev)
     s->row_end = 79;
     s->con = graphic_console_init(ssd0323_update_display,
                                   ssd0323_invalidate_display,
-                                  NULL, NULL, s);
+                                  NULL, s);
     qemu_console_resize(s->con, 128 * MAGNIFY, 64 * MAGNIFY);
 
     qdev_init_gpio_in(&dev->qdev, ssd0323_cd, 1);

hw/display/tc6393xb.c

@@ -585,7 +585,6 @@ TC6393xbState *tc6393xb_init(MemoryRegion *sysmem, uint32_t base, qemu_irq irq)
     s->scr_height = 640;
     s->con = graphic_console_init(tc6393xb_update_display,
             NULL, /* invalidate */
-            NULL, /* screen_dump */
             NULL, /* text_update */
             s);
 

hw/display/tcx.c

@@ -56,11 +56,6 @@ typedef struct TCXState {
     uint8_t dac_index, dac_state;
 } TCXState;
 
-static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch,
-                            Error **errp);
-static void tcx24_screen_dump(void *opaque, const char *filename, bool cswitch,
-                            Error **errp);
-
 static void tcx_set_dirty(TCXState *s)
 {
     memory_region_set_dirty(&s->vram_mem, 0, MAXX * MAXY);
@@ -569,7 +564,7 @@ static int tcx_init1(SysBusDevice *dev)
 
         s->con = graphic_console_init(tcx24_update_display,
                                       tcx24_invalidate_display,
-                                      tcx24_screen_dump, NULL, s);
+                                      NULL, s);
     } else {
         /* THC 8 bit (dummy) */
         memory_region_init_io(&s->thc8, &dummy_ops, s, "tcx.thc8",
@@ -578,133 +573,13 @@ static int tcx_init1(SysBusDevice *dev)
 
         s->con = graphic_console_init(tcx_update_display,
                                       tcx_invalidate_display,
-                                      tcx_screen_dump, NULL, s);
+                                      NULL, s);
     }
 
     qemu_console_resize(s->con, s->width, s->height);
     return 0;
 }
 
-static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch,
-                            Error **errp)
-{
-    TCXState *s = opaque;
-    FILE *f;
-    uint8_t *d, *d1, v;
-    int ret, y, x;
-
-    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", s->width, s->height, 255);
-    if (ret < 0) {
-        goto write_err;
-    }
-    d1 = s->vram;
-    for(y = 0; y < s->height; y++) {
-        d = d1;
-        for(x = 0; x < s->width; x++) {
-            v = *d;
-            ret = fputc(s->r[v], f);
-            if (ret == EOF) {
-                goto write_err;
-            }
-            ret = fputc(s->g[v], f);
-            if (ret == EOF) {
-                goto write_err;
-            }
-            ret = fputc(s->b[v], f);
-            if (ret == EOF) {
-                goto write_err;
-            }
-            d++;
-        }
-        d1 += MAXX;
-    }
-
-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 tcx24_screen_dump(void *opaque, const char *filename, bool cswitch,
-                              Error **errp)
-{
-    TCXState *s = opaque;
-    FILE *f;
-    uint8_t *d, *d1, v;
-    uint32_t *s24, *cptr, dval;
-    int ret, y, x;
-
-    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", s->width, s->height, 255);
-    if (ret < 0) {
-        goto write_err;
-    }
-    d1 = s->vram;
-    s24 = s->vram24;
-    cptr = s->cplane;
-    for(y = 0; y < s->height; y++) {
-        d = d1;
-        for(x = 0; x < s->width; x++, d++, s24++) {
-            if ((*cptr++ & 0xff000000) == 0x03000000) { // 24-bit direct
-                dval = *s24 & 0x00ffffff;
-                ret = fputc((dval >> 16) & 0xff, f);
-                if (ret == EOF) {
-                    goto write_err;
-                }
-                ret = fputc((dval >> 8) & 0xff, f);
-                if (ret == EOF) {
-                    goto write_err;
-                }
-                ret = fputc(dval & 0xff, f);
-                if (ret == EOF) {
-                    goto write_err;
-                }
-            } else {
-                v = *d;
-                ret = fputc(s->r[v], f);
-                if (ret == EOF) {
-                    goto write_err;
-                }
-                ret = fputc(s->g[v], f);
-                if (ret == EOF) {
-                    goto write_err;
-                }
-                ret = fputc(s->b[v], f);
-                if (ret == EOF) {
-                    goto write_err;
-                }
-            }
-        }
-        d1 += MAXX;
-    }
-
-out:
-    fclose(f);
-    return;
-
-write_err:
-    error_setg(errp, "failed to write to file '%s': %s", filename,
-               strerror(errno));
-    unlink(filename);
-    goto out;
-}
-
 static Property tcx_properties[] = {
     DEFINE_PROP_HEX32("vram_size", TCXState, vram_size, -1),
     DEFINE_PROP_UINT16("width",    TCXState, width,     -1),

hw/display/vga-isa-mm.c

@@ -136,7 +136,7 @@ int isa_vga_mm_init(hwaddr vram_base,
     vga_mm_init(s, vram_base, ctrl_base, it_shift, address_space);
 
     s->vga.con = graphic_console_init(s->vga.update, s->vga.invalidate,
-                                      s->vga.screen_dump, s->vga.text_update,
+                                      s->vga.text_update,
                                       s);
 
     vga_init_vbe(&s->vga, address_space);

hw/display/vga-isa.c

@@ -63,7 +63,7 @@ static int vga_initfn(ISADevice *dev)
                                         vga_io_memory, 1);
     memory_region_set_coalescing(vga_io_memory);
     s->con = graphic_console_init(s->update, s->invalidate,
-                                  s->screen_dump, s->text_update, s);
+                                  s->text_update, s);
 
     vga_init_vbe(s, isa_address_space(dev));
     /* ROM BIOS */

hw/display/vga-pci.c

@@ -151,7 +151,7 @@ static int pci_std_vga_initfn(PCIDevice *dev)
     vga_init(s, pci_address_space(dev), pci_address_space_io(dev), true);
 
     s->con = graphic_console_init(s->update, s->invalidate,
-                                  s->screen_dump, s->text_update, s);
+                                  s->text_update, s);
 
     /* XXX: VGA_RAM_SIZE must be a power of two */
     pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->vram);

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);
-}

hw/display/vga_int.h

@@ -154,7 +154,6 @@ typedef struct VGACommonState {
                                  unsigned int g, unsigned b);
     graphic_hw_update_ptr update;
     graphic_hw_invalidate_ptr invalidate;
-    graphic_hw_screen_dump_ptr screen_dump;
     graphic_hw_text_update_ptr text_update;
     bool full_update_text;
     bool full_update_gfx;
@@ -198,7 +197,6 @@ void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val);
 uint32_t vga_mem_readb(VGACommonState *s, hwaddr addr);
 void vga_mem_writeb(VGACommonState *s, hwaddr addr, uint32_t val);
 void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2);
-void ppm_save(const char *filename, struct DisplaySurface *ds, Error **errp);
 
 int vga_ioport_invalid(VGACommonState *s, uint32_t addr);
 

hw/display/vmware_vga.c

@@ -1119,31 +1119,6 @@ static void vmsvga_invalidate_display(void *opaque)
     s->invalidated = 1;
 }
 
-/* save the vga display in a PPM image even if no display is
-   available */
-static void vmsvga_screen_dump(void *opaque, const char *filename, bool cswitch,
-                               Error **errp)
-{
-    struct vmsvga_state_s *s = opaque;
-    DisplaySurface *surface = qemu_console_surface(s->vga.con);
-
-    if (!s->enable) {
-        s->vga.screen_dump(&s->vga, filename, cswitch, errp);
-        return;
-    }
-
-    if (surface_bits_per_pixel(surface) == 32) {
-        DisplaySurface *ds = qemu_create_displaysurface_from(
-                                 surface_width(surface),
-                                 surface_height(surface),
-                                 32,
-                                 surface_stride(surface),
-                                 s->vga.vram_ptr, false);
-        ppm_save(filename, ds, errp);
-        g_free(ds);
-    }
-}
-
 static void vmsvga_text_update(void *opaque, console_ch_t *chardata)
 {
     struct vmsvga_state_s *s = opaque;
@@ -1212,7 +1187,6 @@ static void vmsvga_init(struct vmsvga_state_s *s,
 
     s->vga.con = graphic_console_init(vmsvga_update_display,
                                       vmsvga_invalidate_display,
-                                      vmsvga_screen_dump,
                                       vmsvga_text_update, s);
 
     s->fifo_size = SVGA_FIFO_SIZE;

hw/display/xenfb.c

@@ -1007,7 +1007,6 @@ wait_more:
     fb->c.con = graphic_console_init(xenfb_update,
                                      xenfb_invalidate,
                                      NULL,
-                                     NULL,
                                      fb);
     fb->have_console = 1;
 

hw/unicore32/puv3.c

@@ -92,7 +92,7 @@ static void puv3_load_kernel(const char *kernel_filename)
     }
 
     /* cheat curses that we have a graphic console, only under ocd console */
-    graphic_console_init(NULL, NULL, NULL, NULL, NULL);
+    graphic_console_init(NULL, NULL, NULL, NULL);
 }
 
 static void puv3_init(QEMUMachineInitArgs *args)

include/ui/console.h

@@ -279,13 +279,10 @@ static inline void console_write_ch(console_ch_t *dest, uint32_t ch)
 
 typedef void (*graphic_hw_update_ptr)(void *);
 typedef void (*graphic_hw_invalidate_ptr)(void *);
-typedef void (*graphic_hw_screen_dump_ptr)(void *, const char *, bool cswitch,
-                                       Error **errp);
 typedef void (*graphic_hw_text_update_ptr)(void *, console_ch_t *);
 
 QemuConsole *graphic_console_init(graphic_hw_update_ptr update,
                                   graphic_hw_invalidate_ptr invalidate,
-                                  graphic_hw_screen_dump_ptr screen_dump,
                                   graphic_hw_text_update_ptr text_update,
                                   void *opaque);
 

ui/console.c

@@ -121,7 +121,6 @@ struct QemuConsole {
     /* Graphic console state.  */
     graphic_hw_update_ptr hw_update;
     graphic_hw_invalidate_ptr hw_invalidate;
-    graphic_hw_screen_dump_ptr hw_screen_dump;
     graphic_hw_text_update_ptr hw_text_update;
     void *hw;
     int g_width, g_height;
@@ -188,28 +187,65 @@ void graphic_hw_invalidate(QemuConsole *con)
     }
 }
 
+static 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;
+}
+
 void qmp_screendump(const char *filename, Error **errp)
 {
-    QemuConsole *previous_active_console;
+    QemuConsole *con = consoles[0];
-    bool cswitch;
+    DisplaySurface *surface;
 
-    previous_active_console = active_console;
+    if (con == NULL) {
-    cswitch = previous_active_console && previous_active_console->index != 0;
+        error_setg(errp, "There is no QemuConsole I can screendump from.");
-
+        return;
-    /* There is currently no way of specifying which screen we want to dump,
-       so always dump the first one.  */
-    if (cswitch) {
-        console_select(0);
-    }
-    if (consoles[0] && consoles[0]->hw_screen_dump) {
-        consoles[0]->hw_screen_dump(consoles[0]->hw, filename, cswitch, errp);
-    } else {
-        error_setg(errp, "device doesn't support screendump");
     }
 
-    if (cswitch) {
+    graphic_hw_update(con);
-        console_select(previous_active_console->index);
+    surface = qemu_console_surface(con);
-    }
+    ppm_save(filename, surface, errp);
 }
 
 void graphic_hw_text_update(QemuConsole *con, console_ch_t *chardata)
@@ -1411,7 +1447,6 @@ DisplayState *init_displaystate(void)
 
 QemuConsole *graphic_console_init(graphic_hw_update_ptr update,
                                   graphic_hw_invalidate_ptr invalidate,
-                                  graphic_hw_screen_dump_ptr screen_dump,
                                   graphic_hw_text_update_ptr text_update,
                                   void *opaque)
 {
@@ -1425,7 +1460,6 @@ QemuConsole *graphic_console_init(graphic_hw_update_ptr update,
     s = new_console(ds, GRAPHIC_CONSOLE);
     s->hw_update = update;
     s->hw_invalidate = invalidate;
-    s->hw_screen_dump = screen_dump;
     s->hw_text_update = text_update;
     s->hw = opaque;