Initial commit

1 files changed, 363 insertions, 0 deletions

diff --git a/contrib/SDL-3.2.8/src/video/vivante/SDL_vivantevideo.c b/contrib/SDL-3.2.8/src/video/vivante/SDL_vivantevideo.c
new file mode 100644
index 0000000..245c496
--- /dev/null
+++ b/contrib/SDL-3.2.8/src/video/vivante/SDL_vivantevideo.c
@@ -0,0 +1,363 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2025 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_VIVANTE
+
+// SDL internals
+#include "../SDL_sysvideo.h"
+#include "../../events/SDL_events_c.h"
+
+#ifdef SDL_INPUT_LINUXEV
+#include "../../core/linux/SDL_evdev.h"
+#endif
+
+#include "SDL_vivantevideo.h"
+#include "SDL_vivanteplatform.h"
+#include "SDL_vivanteopengles.h"
+#include "SDL_vivantevulkan.h"
+
+static void VIVANTE_Destroy(SDL_VideoDevice *device)
+{
+    SDL_free(device->internal);
+    SDL_free(device);
+}
+
+static SDL_VideoDevice *VIVANTE_Create(void)
+{
+    SDL_VideoDevice *device;
+    SDL_VideoData *data;
+
+    // Initialize SDL_VideoDevice structure
+    device = (SDL_VideoDevice *)SDL_calloc(1, sizeof(SDL_VideoDevice));
+    if (!device) {
+        return NULL;
+    }
+
+    // Initialize internal data
+    data = (SDL_VideoData *)SDL_calloc(1, sizeof(SDL_VideoData));
+    if (!data) {
+        SDL_free(device);
+        return NULL;
+    }
+
+    device->internal = data;
+
+    // Setup amount of available displays
+    device->num_displays = 0;
+
+    // Set device free function
+    device->free = VIVANTE_Destroy;
+
+    // Setup all functions which we can handle
+    device->VideoInit = VIVANTE_VideoInit;
+    device->VideoQuit = VIVANTE_VideoQuit;
+    device->CreateSDLWindow = VIVANTE_CreateWindow;
+    device->SetWindowTitle = VIVANTE_SetWindowTitle;
+    device->SetWindowPosition = VIVANTE_SetWindowPosition;
+    device->SetWindowSize = VIVANTE_SetWindowSize;
+    device->ShowWindow = VIVANTE_ShowWindow;
+    device->HideWindow = VIVANTE_HideWindow;
+    device->DestroyWindow = VIVANTE_DestroyWindow;
+
+#ifdef SDL_VIDEO_OPENGL_EGL
+    device->GL_LoadLibrary = VIVANTE_GLES_LoadLibrary;
+    device->GL_GetProcAddress = VIVANTE_GLES_GetProcAddress;
+    device->GL_UnloadLibrary = VIVANTE_GLES_UnloadLibrary;
+    device->GL_CreateContext = VIVANTE_GLES_CreateContext;
+    device->GL_MakeCurrent = VIVANTE_GLES_MakeCurrent;
+    device->GL_SetSwapInterval = VIVANTE_GLES_SetSwapInterval;
+    device->GL_GetSwapInterval = VIVANTE_GLES_GetSwapInterval;
+    device->GL_SwapWindow = VIVANTE_GLES_SwapWindow;
+    device->GL_DestroyContext = VIVANTE_GLES_DestroyContext;
+#endif
+
+#ifdef SDL_VIDEO_VULKAN
+    device->Vulkan_LoadLibrary = VIVANTE_Vulkan_LoadLibrary;
+    device->Vulkan_UnloadLibrary = VIVANTE_Vulkan_UnloadLibrary;
+    device->Vulkan_GetInstanceExtensions = VIVANTE_Vulkan_GetInstanceExtensions;
+    device->Vulkan_CreateSurface = VIVANTE_Vulkan_CreateSurface;
+    device->Vulkan_DestroySurface = VIVANTE_Vulkan_DestroySurface;
+#endif
+
+    device->PumpEvents = VIVANTE_PumpEvents;
+
+    return device;
+}
+
+VideoBootStrap VIVANTE_bootstrap = {
+    "vivante",
+    "Vivante EGL Video Driver",
+    VIVANTE_Create,
+    NULL, // no ShowMessageBox implementation
+    false
+};
+
+/*****************************************************************************/
+// SDL Video and Display initialization/handling functions
+/*****************************************************************************/
+
+static bool VIVANTE_AddVideoDisplays(SDL_VideoDevice *_this)
+{
+    SDL_VideoData *videodata = _this->internal;
+    SDL_VideoDisplay display;
+    SDL_DisplayMode mode;
+    SDL_DisplayData *data;
+    int pitch = 0, bpp = 0;
+    unsigned long pixels = 0;
+
+    data = (SDL_DisplayData *)SDL_calloc(1, sizeof(SDL_DisplayData));
+    if (!data) {
+        return false;
+    }
+
+    SDL_zero(mode);
+#ifdef SDL_VIDEO_DRIVER_VIVANTE_VDK
+    data->native_display = vdkGetDisplay(videodata->vdk_private);
+
+    vdkGetDisplayInfo(data->native_display, &mode.w, &mode.h, &pixels, &pitch,
+                      &bpp);
+#else
+    data->native_display = videodata->fbGetDisplayByIndex(0);
+
+    videodata->fbGetDisplayInfo(data->native_display, &mode.w, &mode.h,
+                                &pixels, &pitch, &bpp);
+#endif // SDL_VIDEO_DRIVER_VIVANTE_VDK
+
+    switch (bpp) {
+    default: // Is another format used?
+    case 32:
+        mode.format = SDL_PIXELFORMAT_ARGB8888;
+        break;
+    case 16:
+        mode.format = SDL_PIXELFORMAT_RGB565;
+        break;
+    }
+    // FIXME: How do we query refresh rate?
+    mode.refresh_rate = 60.0f;
+
+    SDL_zero(display);
+    display.name = VIVANTE_GetDisplayName(_this);
+    display.desktop_mode = mode;
+    display.internal = data;
+    if (SDL_AddVideoDisplay(&display, false) == 0) {
+        return false;
+    }
+    return true;
+}
+
+bool VIVANTE_VideoInit(SDL_VideoDevice *_this)
+{
+    SDL_VideoData *videodata = _this->internal;
+
+#ifdef SDL_VIDEO_DRIVER_VIVANTE_VDK
+    videodata->vdk_private = vdkInitialize();
+    if (!videodata->vdk_private) {
+        return SDL_SetError("vdkInitialize() failed");
+    }
+#else
+    videodata->egl_handle = SDL_LoadObject("libEGL.so.1");
+    if (!videodata->egl_handle) {
+        videodata->egl_handle = SDL_LoadObject("libEGL.so");
+        if (!videodata->egl_handle) {
+            return false;
+        }
+    }
+#define LOAD_FUNC(TYPE, NAME)                                               \
+    videodata->NAME = (TYPE)SDL_LoadFunction(videodata->egl_handle, #NAME); \
+    if (!videodata->NAME)                                                   \
+        return false;
+
+    LOAD_FUNC(EGLNativeDisplayType (EGLAPIENTRY *)(void *), fbGetDisplay);
+    LOAD_FUNC(EGLNativeDisplayType (EGLAPIENTRY *)(int), fbGetDisplayByIndex);
+    LOAD_FUNC(void (EGLAPIENTRY *)(EGLNativeDisplayType, int *, int *), fbGetDisplayGeometry);
+    LOAD_FUNC(void (EGLAPIENTRY *)(EGLNativeDisplayType, int *, int *, unsigned long *, int *, int *), fbGetDisplayInfo);
+    LOAD_FUNC(void (EGLAPIENTRY *)(EGLNativeDisplayType), fbDestroyDisplay);
+    LOAD_FUNC(EGLNativeWindowType (EGLAPIENTRY *)(EGLNativeDisplayType, int, int, int, int), fbCreateWindow);
+    LOAD_FUNC(void (EGLAPIENTRY *)(EGLNativeWindowType, int *, int *, int *, int *), fbGetWindowGeometry);
+    LOAD_FUNC(void (EGLAPIENTRY *)(EGLNativeWindowType, int *, int *, int *, int *, int *, unsigned int *), fbGetWindowInfo);
+    LOAD_FUNC(void (EGLAPIENTRY *)(EGLNativeWindowType), fbDestroyWindow);
+#endif
+
+    if (!VIVANTE_SetupPlatform(_this)) {
+        return false;
+    }
+
+    if (!VIVANTE_AddVideoDisplays(_this)) {
+        return false;
+    }
+
+    VIVANTE_UpdateDisplayScale(_this);
+
+#ifdef SDL_INPUT_LINUXEV
+    if (!SDL_EVDEV_Init()) {
+        return false;
+    }
+#endif
+
+    return true;
+}
+
+void VIVANTE_VideoQuit(SDL_VideoDevice *_this)
+{
+    SDL_VideoData *videodata = _this->internal;
+
+#ifdef SDL_INPUT_LINUXEV
+    SDL_EVDEV_Quit();
+#endif
+
+    VIVANTE_CleanupPlatform(_this);
+
+#ifdef SDL_VIDEO_DRIVER_VIVANTE_VDK
+    if (videodata->vdk_private) {
+        vdkExit(videodata->vdk_private);
+        videodata->vdk_private = NULL;
+    }
+#else
+    if (videodata->egl_handle) {
+        SDL_UnloadObject(videodata->egl_handle);
+        videodata->egl_handle = NULL;
+    }
+#endif
+}
+
+bool VIVANTE_CreateWindow(SDL_VideoDevice *_this, SDL_Window *window, SDL_PropertiesID create_props)
+{
+    SDL_VideoData *videodata = _this->internal;
+    SDL_DisplayData *displaydata;
+    SDL_WindowData *data;
+
+    displaydata = SDL_GetDisplayDriverData(SDL_GetPrimaryDisplay());
+
+    // Allocate window internal data
+    data = (SDL_WindowData *)SDL_calloc(1, sizeof(SDL_WindowData));
+    if (!data) {
+        return false;
+    }
+
+    // Setup driver data for this window
+    window->internal = data;
+
+    SDL_PropertiesID props = SDL_GetWindowProperties(window);
+    SDL_SetPointerProperty(props, SDL_PROP_WINDOW_VIVANTE_DISPLAY_POINTER, displaydata->native_display);
+
+#ifdef SDL_VIDEO_DRIVER_VIVANTE_VDK
+    data->native_window = vdkCreateWindow(displaydata->native_display, window->x, window->y, window->w, window->h);
+#else
+    data->native_window = videodata->fbCreateWindow(displaydata->native_display, window->x, window->y, window->w, window->h);
+#endif
+    if (!data->native_window) {
+        return SDL_SetError("VIVANTE: Can't create native window");
+    }
+    SDL_SetPointerProperty(props, SDL_PROP_WINDOW_VIVANTE_WINDOW_POINTER, data->native_window);
+
+#ifdef SDL_VIDEO_OPENGL_EGL
+    if (window->flags & SDL_WINDOW_OPENGL) {
+        data->egl_surface = SDL_EGL_CreateSurface(_this, window, data->native_window);
+        if (data->egl_surface == EGL_NO_SURFACE) {
+            return SDL_SetError("VIVANTE: Can't create EGL surface");
+        }
+    } else {
+        data->egl_surface = EGL_NO_SURFACE;
+    }
+    SDL_SetPointerProperty(props, SDL_PROP_WINDOW_VIVANTE_SURFACE_POINTER, data->egl_surface);
+#endif
+
+    // Window has been successfully created
+    return true;
+}
+
+void VIVANTE_DestroyWindow(SDL_VideoDevice *_this, SDL_Window *window)
+{
+    SDL_VideoData *videodata = _this->internal;
+    SDL_WindowData *data;
+
+    data = window->internal;
+    if (data) {
+#ifdef SDL_VIDEO_OPENGL_EGL
+        if (data->egl_surface != EGL_NO_SURFACE) {
+            SDL_EGL_DestroySurface(_this, data->egl_surface);
+        }
+#endif
+
+        if (data->native_window) {
+#ifdef SDL_VIDEO_DRIVER_VIVANTE_VDK
+            vdkDestroyWindow(data->native_window);
+#else
+            videodata->fbDestroyWindow(data->native_window);
+#endif
+        }
+
+        SDL_free(data);
+    }
+    window->internal = NULL;
+}
+
+void VIVANTE_SetWindowTitle(SDL_VideoDevice *_this, SDL_Window *window)
+{
+#ifdef SDL_VIDEO_DRIVER_VIVANTE_VDK
+    SDL_WindowData *data = window->internal;
+    vdkSetWindowTitle(data->native_window, window->title);
+#endif
+}
+
+bool VIVANTE_SetWindowPosition(SDL_VideoDevice *_this, SDL_Window *window)
+{
+    // FIXME
+    return SDL_Unsupported();
+}
+
+void VIVANTE_SetWindowSize(SDL_VideoDevice *_this, SDL_Window *window)
+{
+    // FIXME
+}
+
+void VIVANTE_ShowWindow(SDL_VideoDevice *_this, SDL_Window *window)
+{
+#ifdef SDL_VIDEO_DRIVER_VIVANTE_VDK
+    SDL_WindowData *data = window->internal;
+    vdkShowWindow(data->native_window);
+#endif
+    SDL_SetMouseFocus(window);
+    SDL_SetKeyboardFocus(window);
+}
+
+void VIVANTE_HideWindow(SDL_VideoDevice *_this, SDL_Window *window)
+{
+#ifdef SDL_VIDEO_DRIVER_VIVANTE_VDK
+    SDL_WindowData *data = window->internal;
+    vdkHideWindow(data->native_window);
+#endif
+    SDL_SetMouseFocus(NULL);
+    SDL_SetKeyboardFocus(NULL);
+}
+
+/*****************************************************************************/
+// SDL event functions
+/*****************************************************************************/
+void VIVANTE_PumpEvents(SDL_VideoDevice *_this)
+{
+#ifdef SDL_INPUT_LINUXEV
+    SDL_EVDEV_Poll();
+#endif
+}
+
+#endif // SDL_VIDEO_DRIVER_VIVANTE