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authoraliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>2009-01-15 22:14:11 +0000
committeraliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>2009-01-15 22:14:11 +0000
commit7d957bd8cbcbf56f7916d375e65042d767f544b5 (patch)
treea50286c42b0bbfccf0d6c7edc4cacadb7f301982 /console.c
parentremove bgr (Stefano Stabellini) (diff)
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DisplayState interface change (Stefano Stabellini)
This patch changes the DisplayState interface adding support for multiple frontends at the same time (sdl and vnc) and implements most of the benefit of the shared_buf patch without the added complexity. Currently DisplayState is managed by sdl (or vnc) and sdl (or vnc) is also responsible for allocating the data and setting the depth. Vga.c (or another backend) will do any necessary conversion. The idea is to change it so that is vga.c (or another backend) together with console.c that fully manage the DisplayState interface allocating data and setting the depth (either 16 or 32 bit, if the guest uses a different resolution or is in text mode, vga.c (or another backend) is in charge of doing the conversion seamlessly). The other idea is that DisplayState supports *multiple* frontends like sdl and vnc; each of them can register some callbacks to be called when a display event occurs. The interesting changes are: - the new structures and related functions in console.h and console.c in particular the following functions are very helpful to manage a DisplaySurface: qemu_create_displaysurface qemu_resize_displaysurface qemu_create_displaysurface_from qemu_free_displaysurface - console_select and qemu_console_resize in console.c this two functions manage multiple consoles on a single host display - moving code around in hw/vga.c as for the shared_buf patch this is necessary to be able to handle a dynamic DisplaySurface bpp - changes to vga_draw_graphic in hw/vga.c this is the place where the DisplaySurface buffer is shared with the videoram, when possible; Compared to the last version the only changes are: - do not remove support to dpy_copy in cirrus_vga - change the name of the displaysurface handling functions Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6336 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'console.c')
-rw-r--r--console.c171
1 files changed, 144 insertions, 27 deletions
diff --git a/console.c b/console.c
index 4e088d7a6..efd07ce31 100644
--- a/console.c
+++ b/console.c
@@ -1044,12 +1044,15 @@ void console_select(unsigned int index)
if (index >= MAX_CONSOLES)
return;
+ active_console->g_width = ds_get_width(active_console->ds);
+ active_console->g_height = ds_get_height(active_console->ds);
s = consoles[index];
if (s) {
+ DisplayState *ds = s->ds;
active_console = s;
- if (s->console_type != TEXT_CONSOLE && s->g_width && s->g_height
- && (s->g_width != ds_get_width(s->ds) || s->g_height != ds_get_height(s->ds)))
- dpy_resize(s->ds, s->g_width, s->g_height);
+ ds->surface = qemu_resize_displaysurface(ds->surface, s->g_width,
+ s->g_height, 32, 4 * s->g_width);
+ dpy_resize(s->ds);
vga_hw_invalidate();
}
}
@@ -1157,16 +1160,6 @@ void kbd_put_keysym(int keysym)
static void text_console_invalidate(void *opaque)
{
TextConsole *s = (TextConsole *) opaque;
-
- if (s->g_width != ds_get_width(s->ds) || s->g_height != ds_get_height(s->ds)) {
- if (s->console_type == TEXT_CONSOLE_FIXED_SIZE)
- dpy_resize(s->ds, s->g_width, s->g_height);
- else {
- s->g_width = ds_get_width(s->ds);
- s->g_height = ds_get_height(s->ds);
- text_console_resize(s);
- }
- }
console_refresh(s);
}
@@ -1346,13 +1339,12 @@ CharDriverState *text_console_init(DisplayState *ds, const char *p)
void qemu_console_resize(QEMUConsole *console, int width, int height)
{
- if (console->g_width != width || console->g_height != height
- || !ds_get_data(console->ds)) {
- console->g_width = width;
- console->g_height = height;
- if (active_console == console) {
- dpy_resize(console->ds, width, height);
- }
+ console->g_width = width;
+ console->g_height = height;
+ if (active_console == console) {
+ DisplayState *ds = console->ds;
+ ds->surface = qemu_resize_displaysurface(ds->surface, width, height, 32, 4 * width);
+ dpy_resize(console->ds);
}
}
@@ -1360,12 +1352,137 @@ void qemu_console_copy(QEMUConsole *console, int src_x, int src_y,
int dst_x, int dst_y, int w, int h)
{
if (active_console == console) {
- if (console->ds->dpy_copy)
- console->ds->dpy_copy(console->ds,
- src_x, src_y, dst_x, dst_y, w, h);
- else {
- /* TODO */
- console->ds->dpy_update(console->ds, dst_x, dst_y, w, h);
- }
+ dpy_copy(console->ds, src_x, src_y, dst_x, dst_y, w, h);
}
}
+
+static PixelFormat qemu_default_pixelformat(int bpp)
+{
+ PixelFormat pf;
+
+ memset(&pf, 0x00, sizeof(PixelFormat));
+
+ pf.bits_per_pixel = bpp;
+ pf.bytes_per_pixel = bpp / 8;
+ pf.depth = bpp == 32 ? 24 : bpp;
+
+ switch (bpp) {
+ case 8:
+ pf.rmask = 0x000000E0;
+ pf.gmask = 0x0000001C;
+ pf.bmask = 0x00000003;
+ pf.rmax = 7;
+ pf.gmax = 7;
+ pf.bmax = 3;
+ pf.rshift = 5;
+ pf.gshift = 2;
+ pf.bshift = 0;
+ break;
+ case 16:
+ pf.rmask = 0x0000F800;
+ pf.gmask = 0x000007E0;
+ pf.bmask = 0x0000001F;
+ pf.rmax = 31;
+ pf.gmax = 63;
+ pf.bmax = 31;
+ pf.rshift = 11;
+ pf.gshift = 5;
+ pf.bshift = 0;
+ break;
+ case 24:
+ case 32:
+ pf.rmask = 0x00FF0000;
+ pf.gmask = 0x0000FF00;
+ pf.bmask = 0x000000FF;
+ pf.rmax = 255;
+ pf.gmax = 255;
+ pf.bmax = 255;
+ pf.rshift = 16;
+ pf.gshift = 8;
+ pf.bshift = 0;
+ break;
+ default:
+ break;
+ }
+ return pf;
+}
+
+DisplaySurface* qemu_create_displaysurface(int width, int height, int bpp, int linesize)
+{
+ DisplaySurface *surface = (DisplaySurface*) qemu_mallocz(sizeof(DisplaySurface));
+ if (surface == NULL) {
+ fprintf(stderr, "qemu_create_displaysurface: malloc failed\n");
+ exit(1);
+ }
+
+ surface->width = width;
+ surface->height = height;
+ surface->linesize = linesize;
+ surface->pf = qemu_default_pixelformat(bpp);
+#ifdef WORDS_BIGENDIAN
+ surface->flags = QEMU_ALLOCATED_FLAG | QEMU_BIG_ENDIAN_FLAG;
+#else
+ surface->flags = QEMU_ALLOCATED_FLAG;
+#endif
+ surface->data = (uint8_t*) qemu_mallocz(surface->linesize * surface->height);
+ if (surface->data == NULL) {
+ fprintf(stderr, "qemu_create_displaysurface: malloc failed\n");
+ exit(1);
+ }
+
+ return surface;
+}
+
+DisplaySurface* qemu_resize_displaysurface(DisplaySurface *surface,
+ int width, int height, int bpp, int linesize)
+{
+ surface->width = width;
+ surface->height = height;
+ surface->linesize = linesize;
+ surface->pf = qemu_default_pixelformat(bpp);
+ if (surface->flags & QEMU_ALLOCATED_FLAG)
+ surface->data = (uint8_t*) qemu_realloc(surface->data, surface->linesize * surface->height);
+ else
+ surface->data = (uint8_t*) qemu_malloc(surface->linesize * surface->height);
+ if (surface->data == NULL) {
+ fprintf(stderr, "qemu_resize_displaysurface: malloc failed\n");
+ exit(1);
+ }
+#ifdef WORDS_BIGENDIAN
+ surface->flags = QEMU_ALLOCATED_FLAG | QEMU_BIG_ENDIAN_FLAG;
+#else
+ surface->flags = QEMU_ALLOCATED_FLAG;
+#endif
+
+ return surface;
+}
+
+DisplaySurface* qemu_create_displaysurface_from(int width, int height, int bpp,
+ int linesize, uint8_t *data)
+{
+ DisplaySurface *surface = (DisplaySurface*) qemu_mallocz(sizeof(DisplaySurface));
+ if (surface == NULL) {
+ fprintf(stderr, "qemu_create_displaysurface_from: malloc failed\n");
+ exit(1);
+ }
+
+ surface->width = width;
+ surface->height = height;
+ surface->linesize = linesize;
+ surface->pf = qemu_default_pixelformat(bpp);
+#ifdef WORDS_BIGENDIAN
+ surface->flags = QEMU_BIG_ENDIAN_FLAG;
+#endif
+ surface->data = data;
+
+ return surface;
+}
+
+void qemu_free_displaysurface(DisplaySurface *surface)
+{
+ if (surface == NULL)
+ return;
+ if (surface->flags & QEMU_ALLOCATED_FLAG)
+ qemu_free(surface->data);
+ qemu_free(surface);
+}