Add qemu 2.4.0

[kvmfornfv.git] / qemu / ui / sdl2-2d.c

diff --git a/qemu/ui/sdl2-2d.c b/qemu/ui/sdl2-2d.c
new file mode 100644 (file)
index 0000000..d0b340f
--- /dev/null
+++ b/qemu/ui/sdl2-2d.c
@@ -0,0 +1,147 @@
+/*
+ * QEMU SDL display driver
+ *
+ * Copyright (c) 2003 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+/* Ported SDL 1.2 code to 2.0 by Dave Airlie. */
+
+#include "qemu-common.h"
+#include "ui/console.h"
+#include "ui/input.h"
+#include "ui/sdl2.h"
+#include "sysemu/sysemu.h"
+
+void sdl2_2d_update(DisplayChangeListener *dcl,
+                    int x, int y, int w, int h)
+{
+    struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
+    DisplaySurface *surf = qemu_console_surface(dcl->con);
+    SDL_Rect rect;
+
+    assert(!scon->opengl);
+
+    if (!surf) {
+        return;
+    }
+    if (!scon->texture) {
+        return;
+    }
+
+    rect.x = x;
+    rect.y = y;
+    rect.w = w;
+    rect.h = h;
+
+    SDL_UpdateTexture(scon->texture, NULL, surface_data(surf),
+                      surface_stride(surf));
+    SDL_RenderCopy(scon->real_renderer, scon->texture, &rect, &rect);
+    SDL_RenderPresent(scon->real_renderer);
+}
+
+void sdl2_2d_switch(DisplayChangeListener *dcl,
+                    DisplaySurface *new_surface)
+{
+    struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
+    DisplaySurface *old_surface = scon->surface;
+    int format = 0;
+
+    assert(!scon->opengl);
+
+    scon->surface = new_surface;
+
+    if (scon->texture) {
+        SDL_DestroyTexture(scon->texture);
+        scon->texture = NULL;
+    }
+
+    if (!new_surface) {
+        sdl2_window_destroy(scon);
+        return;
+    }
+
+    if (!scon->real_window) {
+        sdl2_window_create(scon);
+    } else if (old_surface &&
+               ((surface_width(old_surface)  != surface_width(new_surface)) ||
+                (surface_height(old_surface) != surface_height(new_surface)))) {
+        sdl2_window_resize(scon);
+    }
+
+    SDL_RenderSetLogicalSize(scon->real_renderer,
+                             surface_width(new_surface),
+                             surface_height(new_surface));
+
+    switch (surface_format(scon->surface)) {
+    case PIXMAN_x1r5g5b5:
+        format = SDL_PIXELFORMAT_ARGB1555;
+        break;
+    case PIXMAN_r5g6b5:
+        format = SDL_PIXELFORMAT_RGB565;
+        break;
+    case PIXMAN_x8r8g8b8:
+        format = SDL_PIXELFORMAT_ARGB8888;
+        break;
+    case PIXMAN_r8g8b8x8:
+        format = SDL_PIXELFORMAT_RGBA8888;
+        break;
+    default:
+        g_assert_not_reached();
+    }
+    scon->texture = SDL_CreateTexture(scon->real_renderer, format,
+                                      SDL_TEXTUREACCESS_STREAMING,
+                                      surface_width(new_surface),
+                                      surface_height(new_surface));
+    sdl2_2d_redraw(scon);
+}
+
+void sdl2_2d_refresh(DisplayChangeListener *dcl)
+{
+    struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
+
+    assert(!scon->opengl);
+    graphic_hw_update(dcl->con);
+    sdl2_poll_events(scon);
+}
+
+void sdl2_2d_redraw(struct sdl2_console *scon)
+{
+    assert(!scon->opengl);
+
+    if (!scon->surface) {
+        return;
+    }
+    sdl2_2d_update(&scon->dcl, 0, 0,
+                   surface_width(scon->surface),
+                   surface_height(scon->surface));
+}
+
+bool sdl2_2d_check_format(DisplayChangeListener *dcl,
+                          pixman_format_code_t format)
+{
+    /*
+     * We let SDL convert for us a few more formats than,
+     * the native ones. Thes are the ones I have tested.
+     */
+    return (format == PIXMAN_x8r8g8b8 ||
+            format == PIXMAN_b8g8r8x8 ||
+            format == PIXMAN_x1r5g5b5 ||
+            format == PIXMAN_r5g6b5);
+}