Merge commit 'dec0d4ec4153bf9fc2b78ae6c2df45b6ea8dde7a' as 'external/sdl/SDL'

external/sdl/SDL/src/video/haiku/SDL_bframebuffer.cc

@@ -0,0 +1,127 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#ifdef SDL_VIDEO_DRIVER_HAIKU
+
+#include "SDL_bframebuffer.h"
+
+#include <AppKit.h>
+#include <InterfaceKit.h>
+#include "SDL_bmodes.h"
+#include "SDL_BWin.h"
+
+#include "../../core/haiku/SDL_BApp.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static SDL_INLINE SDL_BWin *_ToBeWin(SDL_Window *window) {
+    return (SDL_BWin *)(window->driverdata);
+}
+
+static SDL_INLINE SDL_BLooper *_GetBeLooper() {
+    return SDL_Looper;
+}
+
+int HAIKU_CreateWindowFramebuffer(SDL_VideoDevice *_this, SDL_Window * window,
+                                       Uint32 * format,
+                                       void ** pixels, int *pitch) {
+    SDL_BWin *bwin = _ToBeWin(window);
+    BScreen bscreen;
+    if (!bscreen.IsValid()) {
+        return -1;
+    }
+
+    /* Make sure we have exclusive access to frame buffer data */
+    bwin->LockBuffer();
+
+    bwin->CreateView();
+
+    /* format */
+    display_mode bmode;
+    bscreen.GetMode(&bmode);
+    *format = HAIKU_ColorSpaceToSDLPxFormat(bmode.space);
+
+    /* Create the new bitmap object */
+    BBitmap *bitmap = bwin->GetBitmap();
+
+    if (bitmap) {
+        delete bitmap;
+    }
+    bitmap = new BBitmap(bwin->Bounds(), (color_space)bmode.space,
+            false,    /* Views not accepted */
+            true);    /* Contiguous memory required */
+
+    if (bitmap->InitCheck() != B_OK) {
+        delete bitmap;
+        return SDL_SetError("Could not initialize back buffer!");
+    }
+
+
+    bwin->SetBitmap(bitmap);
+
+    /* Set the pixel pointer */
+    *pixels = bitmap->Bits();
+
+    /* pitch = width of window, in bytes */
+    *pitch = bitmap->BytesPerRow();
+
+    bwin->UnlockBuffer();
+    return 0;
+}
+
+
+
+int HAIKU_UpdateWindowFramebuffer(SDL_VideoDevice *_this, SDL_Window * window,
+                                      const SDL_Rect * rects, int numrects) {
+    if (window == NULL) {
+        return 0;
+    }
+
+    SDL_BWin *bwin = _ToBeWin(window);
+
+    bwin->PostMessage(BWIN_UPDATE_FRAMEBUFFER);
+
+    return 0;
+}
+
+void HAIKU_DestroyWindowFramebuffer(SDL_VideoDevice *_this, SDL_Window * window) {
+    SDL_BWin *bwin = _ToBeWin(window);
+
+    bwin->LockBuffer();
+
+    /* Free and clear the window buffer */
+    BBitmap *bitmap = bwin->GetBitmap();
+    delete bitmap;
+    bwin->SetBitmap(NULL);
+
+    bwin->RemoveView();
+
+    bwin->UnlockBuffer();
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SDL_VIDEO_DRIVER_HAIKU */