RGBCube/serenity
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Share GraphicsBitmaps between the windowing server and the client process.

Browse source 
This is pretty cool. :^)

GraphicsBitmaps are now mapped into both the server and the client address
space (usually at different addresses but that doesn't matter.)

Added a GUI syscall for getting a window's backing store, and another one
for invalidating a window so that the server redraws it.
This commit is contained in:
Andreas Kling 2019-01-14 15:25:34 +01:00
parent b0e3f73375
commit 0c5ecd303c
13 changed files with 139 additions and 46 deletions
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33
Userland/guitest.cpp
View file

@ -7,6 +7,13 @@
#include <assert.h>
#include <Kernel/GUITypes.h>
#include <Kernel/Syscall.h>
#include <AK/StdLibExtras.h>
int gui_invalidate_window(int window_id)
{
int rc = syscall(SC_gui_invalidate_window, window_id);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int main(int argc, char** argv)
{
@ -26,6 +33,23 @@ int main(int argc, char** argv)
return 1;
}
GUI_WindowBackingStoreInfo backing;
int rc = syscall(SC_gui_get_window_backing_store, window_id, &backing);
if (rc < 0) {
perror("gui_get_window_backing_store");
return 1;
}
sys_printf("(Client) window backing %ux%u @ %p\n", backing.size.width, backing.size.height, backing.pixels);
fast_dword_fill(backing.pixels, 0x00ff00, backing.size.width * backing.size.height);
rc = gui_invalidate_window(window_id);
if (rc < 0) {
perror("gui_invalidate_window");
return 1;
}
for (;;) {
GUI_Event event;
ssize_t nread = read(fd, &event, sizeof(event));
@ -41,6 +65,15 @@ int main(int argc, char** argv)
case GUI_Event::Type::MouseMove: sys_printf("WID=%x MouseMove %d,%d\n", event.window_id, event.mouse.position.x, event.mouse.position.y); break;
}
if (event.type == GUI_Event::Type::MouseDown) {
byte r = rand() % 255;
byte g = rand() % 255;
byte b = rand() % 255;
Color color(r, g, b);
fast_dword_fill(backing.pixels, color.value(), backing.size.width * backing.size.height);
gui_invalidate_window(window_id);
}
}
return 0;
}