ref: a1d4d588a866ce31b2abb3c89920ff4173e867ab
dir: /external/SDL2/src/video/vivante/SDL_vivantevideo.c/
/*
Simple DirectMedia Layer
Copyright (C) 1997-2020 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"
#if SDL_VIDEO_DRIVER_VIVANTE
/* SDL internals */
#include "../SDL_sysvideo.h"
#include "SDL_version.h"
#include "SDL_syswm.h"
#include "SDL_loadso.h"
#include "SDL_events.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 int
VIVANTE_Available(void)
{
return 1;
}
static void
VIVANTE_Destroy(SDL_VideoDevice * device)
{
if (device->driverdata != NULL) {
SDL_free(device->driverdata);
device->driverdata = NULL;
}
}
static SDL_VideoDevice *
VIVANTE_Create()
{
SDL_VideoDevice *device;
SDL_VideoData *data;
/* Initialize SDL_VideoDevice structure */
device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
if (device == NULL) {
SDL_OutOfMemory();
return NULL;
}
/* Initialize internal data */
data = (SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
if (data == NULL) {
SDL_OutOfMemory();
SDL_free(device);
return NULL;
}
device->driverdata = 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->GetDisplayModes = VIVANTE_GetDisplayModes;
device->SetDisplayMode = VIVANTE_SetDisplayMode;
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;
device->GetWindowWMInfo = VIVANTE_GetWindowWMInfo;
#if 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_DeleteContext = VIVANTE_GLES_DeleteContext;
#endif
#if 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;
#endif
device->PumpEvents = VIVANTE_PumpEvents;
return device;
}
VideoBootStrap VIVANTE_bootstrap = {
"vivante",
"Vivante EGL Video Driver",
VIVANTE_Available,
VIVANTE_Create
};
/*****************************************************************************/
/* SDL Video and Display initialization/handling functions */
/*****************************************************************************/
static int
VIVANTE_AddVideoDisplays(_THIS)
{
SDL_VideoData *videodata = _this->driverdata;
SDL_VideoDisplay display;
SDL_DisplayMode current_mode;
SDL_DisplayData *data;
int pitch = 0, bpp = 0;
unsigned long pixels = 0;
data = (SDL_DisplayData *) SDL_calloc(1, sizeof(SDL_DisplayData));
if (data == NULL) {
return SDL_OutOfMemory();
}
SDL_zero(current_mode);
#if SDL_VIDEO_DRIVER_VIVANTE_VDK
data->native_display = vdkGetDisplay(videodata->vdk_private);
vdkGetDisplayInfo(data->native_display, ¤t_mode.w, ¤t_mode.h, &pixels, &pitch, &bpp);
#else
data->native_display = videodata->fbGetDisplayByIndex(0);
videodata->fbGetDisplayInfo(data->native_display, ¤t_mode.w, ¤t_mode.h, &pixels, &pitch, &bpp);
#endif /* SDL_VIDEO_DRIVER_VIVANTE_VDK */
switch (bpp)
{
default: /* Is another format used? */
case 32:
current_mode.format = SDL_PIXELFORMAT_ARGB8888;
break;
case 16:
current_mode.format = SDL_PIXELFORMAT_RGB565;
break;
}
/* FIXME: How do we query refresh rate? */
current_mode.refresh_rate = 60;
SDL_zero(display);
display.name = VIVANTE_GetDisplayName(_this);
display.desktop_mode = current_mode;
display.current_mode = current_mode;
display.driverdata = data;
SDL_AddVideoDisplay(&display);
return 0;
}
int
VIVANTE_VideoInit(_THIS)
{
SDL_VideoData *videodata = (SDL_VideoData *)_this->driverdata;
#if 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 -1;
}
}
#define LOAD_FUNC(NAME) \
videodata->NAME = SDL_LoadFunction(videodata->egl_handle, #NAME); \
if (!videodata->NAME) return -1;
LOAD_FUNC(fbGetDisplay);
LOAD_FUNC(fbGetDisplayByIndex);
LOAD_FUNC(fbGetDisplayGeometry);
LOAD_FUNC(fbGetDisplayInfo);
LOAD_FUNC(fbDestroyDisplay);
LOAD_FUNC(fbCreateWindow);
LOAD_FUNC(fbGetWindowGeometry);
LOAD_FUNC(fbGetWindowInfo);
LOAD_FUNC(fbDestroyWindow);
#endif
if (VIVANTE_SetupPlatform(_this) < 0) {
return -1;
}
if (VIVANTE_AddVideoDisplays(_this) < 0) {
return -1;
}
VIVANTE_UpdateDisplayScale(_this);
#ifdef SDL_INPUT_LINUXEV
if (SDL_EVDEV_Init() < 0) {
return -1;
}
#endif
return 0;
}
void
VIVANTE_VideoQuit(_THIS)
{
SDL_VideoData *videodata = (SDL_VideoData *)_this->driverdata;
#ifdef SDL_INPUT_LINUXEV
SDL_EVDEV_Quit();
#endif
VIVANTE_CleanupPlatform(_this);
#if 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
}
void
VIVANTE_GetDisplayModes(_THIS, SDL_VideoDisplay * display)
{
/* Only one display mode available, the current one */
SDL_AddDisplayMode(display, &display->current_mode);
}
int
VIVANTE_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode)
{
return 0;
}
int
VIVANTE_CreateWindow(_THIS, SDL_Window * window)
{
SDL_VideoData *videodata = (SDL_VideoData *)_this->driverdata;
SDL_DisplayData *displaydata;
SDL_WindowData *data;
displaydata = SDL_GetDisplayDriverData(0);
/* Allocate window internal data */
data = (SDL_WindowData *) SDL_calloc(1, sizeof(SDL_WindowData));
if (data == NULL) {
return SDL_OutOfMemory();
}
/* Setup driver data for this window */
window->driverdata = data;
#if 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");
}
#if SDL_VIDEO_OPENGL_EGL
if (window->flags & SDL_WINDOW_OPENGL) {
data->egl_surface = SDL_EGL_CreateSurface(_this, 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;
}
#endif
/* Window has been successfully created */
return 0;
}
void
VIVANTE_DestroyWindow(_THIS, SDL_Window * window)
{
SDL_VideoData *videodata = (SDL_VideoData *)_this->driverdata;
SDL_WindowData *data;
data = window->driverdata;
if (data) {
#if SDL_VIDEO_OPENGL_EGL
if (data->egl_surface != EGL_NO_SURFACE) {
SDL_EGL_DestroySurface(_this, data->egl_surface);
}
#endif
if (data->native_window) {
#if SDL_VIDEO_DRIVER_VIVANTE_VDK
vdkDestroyWindow(data->native_window);
#else
videodata->fbDestroyWindow(data->native_window);
#endif
}
SDL_free(data);
}
window->driverdata = NULL;
}
void
VIVANTE_SetWindowTitle(_THIS, SDL_Window * window)
{
#if SDL_VIDEO_DRIVER_VIVANTE_VDK
SDL_WindowData *data = window->driverdata;
vdkSetWindowTitle(data->native_window, window->title);
#endif
}
void
VIVANTE_SetWindowPosition(_THIS, SDL_Window * window)
{
/* FIXME */
}
void
VIVANTE_SetWindowSize(_THIS, SDL_Window * window)
{
/* FIXME */
}
void
VIVANTE_ShowWindow(_THIS, SDL_Window * window)
{
#if SDL_VIDEO_DRIVER_VIVANTE_VDK
SDL_WindowData *data = window->driverdata;
vdkShowWindow(data->native_window);
#endif
SDL_SetMouseFocus(window);
SDL_SetKeyboardFocus(window);
}
void
VIVANTE_HideWindow(_THIS, SDL_Window * window)
{
#if SDL_VIDEO_DRIVER_VIVANTE_VDK
SDL_WindowData *data = window->driverdata;
vdkHideWindow(data->native_window);
#endif
}
/*****************************************************************************/
/* SDL Window Manager function */
/*****************************************************************************/
SDL_bool
VIVANTE_GetWindowWMInfo(_THIS, SDL_Window * window, struct SDL_SysWMinfo *info)
{
SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
SDL_DisplayData *displaydata = SDL_GetDisplayDriverData(0);
if (info->version.major == SDL_MAJOR_VERSION &&
info->version.minor == SDL_MINOR_VERSION) {
info->subsystem = SDL_SYSWM_VIVANTE;
info->info.vivante.display = displaydata->native_display;
info->info.vivante.window = data->native_window;
return SDL_TRUE;
} else {
SDL_SetError("Application not compiled with SDL %d.%d",
SDL_MAJOR_VERSION, SDL_MINOR_VERSION);
return SDL_FALSE;
}
}
/*****************************************************************************/
/* SDL event functions */
/*****************************************************************************/
void VIVANTE_PumpEvents(_THIS)
{
#ifdef SDL_INPUT_LINUXEV
SDL_EVDEV_Poll();
#endif
}
#endif /* SDL_VIDEO_DRIVER_VIVANTE */
/* vi: set ts=4 sw=4 expandtab: */