The documentation on SDL_RenderPresent function states that
"the backbuffer should be considered invalidated after each present",
so copy the entire texture on each redraw.

On the other hand, SDL_UpdateTexture function is described as
"fairly slow function", so restrict it to just the changed pixels.

Also added SDL_RenderClear call, as suggested in the documentation
page on SDL_RenderPresent.
Signed-off-by: NAnatoly Trosinenko <anatoly.trosinenko@gmail.com>
Message-id: 20180205133228.25082-1-anatoly.trosinenko@gmail.com
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

This patch adds support of b8g8r8x8 pixel format for SDL2.
Signed-off-by: NPavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Message-id: 20160517072848.4540.34695.stgit@PASHA-ISP
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Message-id: 1454089805-5470-2-git-send-email-peter.maydell@linaro.org

Optimizing updates by copying the dirty rectangle
only do not work because of double-buffering.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: NMax Reitz <mreitz@redhat.com>

Reproducable with:

$ x86_64-softmmu/qemu-system-x86_64 \
    -kernel $vmlinuz_of_your_choice \
    -append vga=0x313 -sdl
Signed-off-by: NMax Reitz <mreitz@redhat.com>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Add new sdl2-gl.c file, with display
rendering functions using opengl.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NMax Reitz <mreitz@redhat.com>

Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NMax Reitz <mreitz@redhat.com>

Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Now that common event handling code is split off, we can move
over sdl_refresh to sdl2-2d.c, and rename it to sdl2_2d_refresh.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NMax Reitz <mreitz@redhat.com>

Add a new sdl2_2d_redraw function for a complete screen refresh,
so we can stop using graphic_hw_invalidate for that.  There is
no need to bother console / gfx emulation code if we are just
going to re-blit the screen after window resizes.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NMax Reitz <mreitz@redhat.com>

Move sdl_switch to sdl2-2d.c file, rename to sdl2_2d_switch.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NMax Reitz <mreitz@redhat.com>

Create new sdl2-2d file for 2d display rendering.
Move over sdl_update code, and rename to sdl2_2d_update.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NMax Reitz <mreitz@redhat.com>

'extern' qualifier is useless for function declarations. Delete
them.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move sdl, vnc, curses and cocoa UI into ui/ to cleanup
the root directory. Also remove some unnecessary explicit
targets from Makefile.

aliguori: fix build when srcdir != objdir
Signed-off-by: NCorentin Chary <corentincj@iksaif.net>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This patch corrects SDL support on X11 hosts using evdev.  It's losely based
on the previous patch by Dustin Kirkland and the evdev support code in gtk-vnc
written by Daniel Berrange.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6678 c046a42c-6fe2-441c-8c8c-71466251a162

(Samuel Thibault)


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4173 c046a42c-6fe2-441c-8c8c-71466251a162

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3943 c046a42c-6fe2-441c-8c8c-71466251a162

 (mostly CPU registration and UIC, for now).


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3340 c046a42c-6fe2-441c-8c8c-71466251a162

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2635 c046a42c-6fe2-441c-8c8c-71466251a162

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2379 c046a42c-6fe2-441c-8c8c-71466251a162

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1584 c046a42c-6fe2-441c-8c8c-71466251a162

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1125 c046a42c-6fe2-441c-8c8c-71466251a162