mirror of
https://github.com/encounter/SDL.git
synced 2025-12-17 17:05:23 +00:00
Fixed crash if initialization of EGL failed but was tried again later.
The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
This commit is contained in:
Philipp Wiesemann
424
src/video/directfb/SDL_DirectFB_video.c
Normal file
424
src/video/directfb/SDL_DirectFB_video.c
Normal file
@@ -0,0 +1,424 @@
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2015 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#if SDL_VIDEO_DRIVER_DIRECTFB
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#include "SDL_DirectFB_video.h"
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#include "SDL_DirectFB_events.h"
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/*
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* #include "SDL_DirectFB_keyboard.h"
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*/
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#include "SDL_DirectFB_modes.h"
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#include "SDL_DirectFB_mouse.h"
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#include "SDL_DirectFB_opengl.h"
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#include "SDL_DirectFB_window.h"
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#include "SDL_DirectFB_WM.h"
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/* DirectFB video driver implementation.
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*/
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <directfb.h>
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#include <directfb_version.h>
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#include <directfb_strings.h>
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#include "SDL_video.h"
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#include "SDL_mouse.h"
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#include "../SDL_sysvideo.h"
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#include "../SDL_pixels_c.h"
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#include "../../events/SDL_events_c.h"
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#include "SDL_DirectFB_video.h"
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#include "SDL_DirectFB_events.h"
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#include "SDL_DirectFB_render.h"
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#include "SDL_DirectFB_mouse.h"
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#include "SDL_DirectFB_shape.h"
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#include "SDL_DirectFB_dyn.h"
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/* Initialization/Query functions */
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static int DirectFB_VideoInit(_THIS);
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static void DirectFB_VideoQuit(_THIS);
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static int DirectFB_Available(void);
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static SDL_VideoDevice *DirectFB_CreateDevice(int devindex);
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VideoBootStrap DirectFB_bootstrap = {
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"directfb", "DirectFB",
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DirectFB_Available, DirectFB_CreateDevice
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};
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static const DirectFBSurfaceDrawingFlagsNames(drawing_flags);
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static const DirectFBSurfaceBlittingFlagsNames(blitting_flags);
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static const DirectFBAccelerationMaskNames(acceleration_mask);
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/* DirectFB driver bootstrap functions */
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static int
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DirectFB_Available(void)
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{
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if (!SDL_DirectFB_LoadLibrary())
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return 0;
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SDL_DirectFB_UnLoadLibrary();
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return 1;
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}
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static void
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DirectFB_DeleteDevice(SDL_VideoDevice * device)
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{
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SDL_DirectFB_UnLoadLibrary();
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SDL_DFB_FREE(device->driverdata);
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SDL_DFB_FREE(device);
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}
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static SDL_VideoDevice *
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DirectFB_CreateDevice(int devindex)
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{
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SDL_VideoDevice *device;
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if (!SDL_DirectFB_LoadLibrary()) {
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return NULL;
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}
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/* Initialize all variables that we clean on shutdown */
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SDL_DFB_ALLOC_CLEAR(device, sizeof(SDL_VideoDevice));
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/* Set the function pointers */
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/* Set the function pointers */
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device->VideoInit = DirectFB_VideoInit;
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device->VideoQuit = DirectFB_VideoQuit;
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device->GetDisplayModes = DirectFB_GetDisplayModes;
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device->SetDisplayMode = DirectFB_SetDisplayMode;
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device->PumpEvents = DirectFB_PumpEventsWindow;
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device->CreateWindow = DirectFB_CreateWindow;
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device->CreateWindowFrom = DirectFB_CreateWindowFrom;
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device->SetWindowTitle = DirectFB_SetWindowTitle;
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device->SetWindowIcon = DirectFB_SetWindowIcon;
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device->SetWindowPosition = DirectFB_SetWindowPosition;
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device->SetWindowSize = DirectFB_SetWindowSize;
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device->ShowWindow = DirectFB_ShowWindow;
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device->HideWindow = DirectFB_HideWindow;
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device->RaiseWindow = DirectFB_RaiseWindow;
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device->MaximizeWindow = DirectFB_MaximizeWindow;
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device->MinimizeWindow = DirectFB_MinimizeWindow;
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device->RestoreWindow = DirectFB_RestoreWindow;
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device->SetWindowGrab = DirectFB_SetWindowGrab;
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device->DestroyWindow = DirectFB_DestroyWindow;
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device->GetWindowWMInfo = DirectFB_GetWindowWMInfo;
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/* !!! FIXME: implement SetWindowBordered */
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#if SDL_DIRECTFB_OPENGL
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device->GL_LoadLibrary = DirectFB_GL_LoadLibrary;
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device->GL_GetProcAddress = DirectFB_GL_GetProcAddress;
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device->GL_MakeCurrent = DirectFB_GL_MakeCurrent;
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device->GL_CreateContext = DirectFB_GL_CreateContext;
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device->GL_SetSwapInterval = DirectFB_GL_SetSwapInterval;
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device->GL_GetSwapInterval = DirectFB_GL_GetSwapInterval;
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device->GL_SwapWindow = DirectFB_GL_SwapWindow;
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device->GL_DeleteContext = DirectFB_GL_DeleteContext;
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#endif
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/* Shaped window support */
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device->shape_driver.CreateShaper = DirectFB_CreateShaper;
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device->shape_driver.SetWindowShape = DirectFB_SetWindowShape;
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device->shape_driver.ResizeWindowShape = DirectFB_ResizeWindowShape;
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device->free = DirectFB_DeleteDevice;
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return device;
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error:
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if (device)
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SDL_free(device);
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return (0);
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}
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static void
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DirectFB_DeviceInformation(IDirectFB * dfb)
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{
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DFBGraphicsDeviceDescription desc;
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int n;
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dfb->GetDeviceDescription(dfb, &desc);
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SDL_DFB_LOG( "DirectFB Device Information");
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SDL_DFB_LOG( "===========================");
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SDL_DFB_LOG( "Name: %s", desc.name);
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SDL_DFB_LOG( "Vendor: %s", desc.vendor);
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SDL_DFB_LOG( "Driver Name: %s", desc.driver.name);
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SDL_DFB_LOG( "Driver Vendor: %s", desc.driver.vendor);
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SDL_DFB_LOG( "Driver Version: %d.%d", desc.driver.major,
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desc.driver.minor);
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SDL_DFB_LOG( "Video memoory: %d", desc.video_memory);
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SDL_DFB_LOG( "Blitting flags:");
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for (n = 0; blitting_flags[n].flag; n++) {
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if (desc.blitting_flags & blitting_flags[n].flag)
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SDL_DFB_LOG( " %s", blitting_flags[n].name);
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}
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SDL_DFB_LOG( "Drawing flags:");
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for (n = 0; drawing_flags[n].flag; n++) {
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if (desc.drawing_flags & drawing_flags[n].flag)
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SDL_DFB_LOG( " %s", drawing_flags[n].name);
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}
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SDL_DFB_LOG( "Acceleration flags:");
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for (n = 0; acceleration_mask[n].mask; n++) {
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if (desc.acceleration_mask & acceleration_mask[n].mask)
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SDL_DFB_LOG( " %s", acceleration_mask[n].name);
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}
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}
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static int readBoolEnv(const char *env_name, int def_val)
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{
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char *stemp;
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stemp = SDL_getenv(env_name);
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if (stemp)
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return atoi(stemp);
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else
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return def_val;
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}
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static int
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DirectFB_VideoInit(_THIS)
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{
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IDirectFB *dfb = NULL;
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DFB_DeviceData *devdata = NULL;
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DFBResult ret;
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SDL_DFB_ALLOC_CLEAR(devdata, sizeof(*devdata));
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SDL_DFB_CHECKERR(DirectFBInit(NULL, NULL));
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/* avoid switching to the framebuffer when we
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* are running X11 */
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ret = readBoolEnv(DFBENV_USE_X11_CHECK , 1);
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if (ret) {
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if (SDL_getenv("DISPLAY"))
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DirectFBSetOption("system", "x11");
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else
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DirectFBSetOption("disable-module", "x11input");
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}
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/* FIXME: Reenable as default once multi kbd/mouse interface is sorted out */
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devdata->use_linux_input = readBoolEnv(DFBENV_USE_LINUX_INPUT, 0); /* default: on */
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if (!devdata->use_linux_input)
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{
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SDL_DFB_LOG("Disabling linux input\n");
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DirectFBSetOption("disable-module", "linux_input");
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}
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SDL_DFB_CHECKERR(DirectFBCreate(&dfb));
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DirectFB_DeviceInformation(dfb);
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devdata->use_yuv_underlays = readBoolEnv(DFBENV_USE_YUV_UNDERLAY, 0); /* default: off */
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devdata->use_yuv_direct = readBoolEnv(DFBENV_USE_YUV_DIRECT, 0); /* default is off! */
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/* Create global Eventbuffer for axis events */
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if (devdata->use_linux_input) {
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SDL_DFB_CHECKERR(dfb->CreateInputEventBuffer(dfb, DICAPS_ALL,
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DFB_TRUE,
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&devdata->events));
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} else {
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SDL_DFB_CHECKERR(dfb->CreateInputEventBuffer(dfb, DICAPS_AXES
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/* DICAPS_ALL */ ,
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DFB_TRUE,
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&devdata->events));
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}
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/* simple window manager support */
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devdata->has_own_wm = readBoolEnv(DFBENV_USE_WM, 0);
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devdata->initialized = 1;
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devdata->dfb = dfb;
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devdata->firstwin = NULL;
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devdata->grabbed_window = NULL;
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_this->driverdata = devdata;
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DirectFB_InitModes(_this);
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#if SDL_DIRECTFB_OPENGL
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DirectFB_GL_Initialize(_this);
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#endif
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DirectFB_InitMouse(_this);
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DirectFB_InitKeyboard(_this);
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return 0;
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error:
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SDL_DFB_FREE(devdata);
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SDL_DFB_RELEASE(dfb);
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return -1;
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}
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static void
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DirectFB_VideoQuit(_THIS)
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{
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DFB_DeviceData *devdata = (DFB_DeviceData *) _this->driverdata;
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DirectFB_QuitModes(_this);
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DirectFB_QuitKeyboard(_this);
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DirectFB_QuitMouse(_this);
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devdata->events->Reset(devdata->events);
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SDL_DFB_RELEASE(devdata->events);
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SDL_DFB_RELEASE(devdata->dfb);
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#if SDL_DIRECTFB_OPENGL
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DirectFB_GL_Shutdown(_this);
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#endif
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devdata->initialized = 0;
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}
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/* DirectFB driver general support functions */
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static const struct {
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DFBSurfacePixelFormat dfb;
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Uint32 sdl;
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} pixelformat_tab[] =
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{
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{ DSPF_RGB32, SDL_PIXELFORMAT_RGB888 }, /* 24 bit RGB (4 byte, nothing@24, red 8@16, green 8@8, blue 8@0) */
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{ DSPF_ARGB, SDL_PIXELFORMAT_ARGB8888 }, /* 32 bit ARGB (4 byte, alpha 8@24, red 8@16, green 8@8, blue 8@0) */
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{ DSPF_RGB16, SDL_PIXELFORMAT_RGB565 }, /* 16 bit RGB (2 byte, red 5@11, green 6@5, blue 5@0) */
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{ DSPF_RGB332, SDL_PIXELFORMAT_RGB332 }, /* 8 bit RGB (1 byte, red 3@5, green 3@2, blue 2@0) */
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{ DSPF_ARGB4444, SDL_PIXELFORMAT_ARGB4444 }, /* 16 bit ARGB (2 byte, alpha 4@12, red 4@8, green 4@4, blue 4@0) */
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{ DSPF_ARGB1555, SDL_PIXELFORMAT_ARGB1555 }, /* 16 bit ARGB (2 byte, alpha 1@15, red 5@10, green 5@5, blue 5@0) */
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{ DSPF_RGB24, SDL_PIXELFORMAT_RGB24 }, /* 24 bit RGB (3 byte, red 8@16, green 8@8, blue 8@0) */
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{ DSPF_RGB444, SDL_PIXELFORMAT_RGB444 }, /* 16 bit RGB (2 byte, nothing @12, red 4@8, green 4@4, blue 4@0) */
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{ DSPF_YV12, SDL_PIXELFORMAT_YV12 }, /* 12 bit YUV (8 bit Y plane followed by 8 bit quarter size V/U planes) */
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{ DSPF_I420,SDL_PIXELFORMAT_IYUV }, /* 12 bit YUV (8 bit Y plane followed by 8 bit quarter size U/V planes) */
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{ DSPF_YUY2, SDL_PIXELFORMAT_YUY2 }, /* 16 bit YUV (4 byte/ 2 pixel, macropixel contains CbYCrY [31:0]) */
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{ DSPF_UYVY, SDL_PIXELFORMAT_UYVY }, /* 16 bit YUV (4 byte/ 2 pixel, macropixel contains YCbYCr [31:0]) */
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{ DSPF_RGB555, SDL_PIXELFORMAT_RGB555 }, /* 16 bit RGB (2 byte, nothing @15, red 5@10, green 5@5, blue 5@0) */
|
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#if (ENABLE_LUT8)
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{ DSPF_LUT8, SDL_PIXELFORMAT_INDEX8 }, /* 8 bit LUT (8 bit color and alpha lookup from palette) */
|
||||
#endif
|
||||
|
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#if (DFB_VERSION_ATLEAST(1,2,0))
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{ DSPF_BGR555, SDL_PIXELFORMAT_BGR555 }, /* 16 bit BGR (2 byte, nothing @15, blue 5@10, green 5@5, red 5@0) */
|
||||
#else
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{ DSPF_UNKNOWN, SDL_PIXELFORMAT_BGR555 },
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#endif
|
||||
|
||||
/* Pfff ... nonmatching formats follow */
|
||||
|
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{ DSPF_ALUT44, SDL_PIXELFORMAT_UNKNOWN }, /* 8 bit ALUT (1 byte, alpha 4@4, color lookup 4@0) */
|
||||
{ DSPF_A8, SDL_PIXELFORMAT_UNKNOWN }, /* 8 bit alpha (1 byte, alpha 8@0), e.g. anti-aliased glyphs */
|
||||
{ DSPF_AiRGB, SDL_PIXELFORMAT_UNKNOWN }, /* 32 bit ARGB (4 byte, inv. alpha 8@24, red 8@16, green 8@8, blue 8@0) */
|
||||
{ DSPF_A1, SDL_PIXELFORMAT_UNKNOWN }, /* 1 bit alpha (1 byte/ 8 pixel, most significant bit used first) */
|
||||
{ DSPF_NV12, SDL_PIXELFORMAT_UNKNOWN }, /* 12 bit YUV (8 bit Y plane followed by one 16 bit quarter size CbCr [15:0] plane) */
|
||||
{ DSPF_NV16, SDL_PIXELFORMAT_UNKNOWN }, /* 16 bit YUV (8 bit Y plane followed by one 16 bit half width CbCr [15:0] plane) */
|
||||
{ DSPF_ARGB2554, SDL_PIXELFORMAT_UNKNOWN }, /* 16 bit ARGB (2 byte, alpha 2@14, red 5@9, green 5@4, blue 4@0) */
|
||||
{ DSPF_NV21, SDL_PIXELFORMAT_UNKNOWN }, /* 12 bit YUV (8 bit Y plane followed by one 16 bit quarter size CrCb [15:0] plane) */
|
||||
{ DSPF_AYUV, SDL_PIXELFORMAT_UNKNOWN }, /* 32 bit AYUV (4 byte, alpha 8@24, Y 8@16, Cb 8@8, Cr 8@0) */
|
||||
{ DSPF_A4, SDL_PIXELFORMAT_UNKNOWN }, /* 4 bit alpha (1 byte/ 2 pixel, more significant nibble used first) */
|
||||
{ DSPF_ARGB1666, SDL_PIXELFORMAT_UNKNOWN }, /* 1 bit alpha (3 byte/ alpha 1@18, red 6@16, green 6@6, blue 6@0) */
|
||||
{ DSPF_ARGB6666, SDL_PIXELFORMAT_UNKNOWN }, /* 6 bit alpha (3 byte/ alpha 6@18, red 6@16, green 6@6, blue 6@0) */
|
||||
{ DSPF_RGB18, SDL_PIXELFORMAT_UNKNOWN }, /* 6 bit RGB (3 byte/ red 6@16, green 6@6, blue 6@0) */
|
||||
{ DSPF_LUT2, SDL_PIXELFORMAT_UNKNOWN }, /* 2 bit LUT (1 byte/ 4 pixel, 2 bit color and alpha lookup from palette) */
|
||||
|
||||
#if (DFB_VERSION_ATLEAST(1,3,0))
|
||||
{ DSPF_RGBA4444, SDL_PIXELFORMAT_UNKNOWN }, /* 16 bit RGBA (2 byte, red 4@12, green 4@8, blue 4@4, alpha 4@0) */
|
||||
#endif
|
||||
|
||||
#if (DFB_VERSION_ATLEAST(1,4,3))
|
||||
{ DSPF_RGBA5551, SDL_PIXELFORMAT_UNKNOWN }, /* 16 bit RGBA (2 byte, red 5@11, green 5@6, blue 5@1, alpha 1@0) */
|
||||
{ DSPF_YUV444P, SDL_PIXELFORMAT_UNKNOWN }, /* 24 bit full YUV planar (8 bit Y plane followed by an 8 bit Cb and an 8 bit Cr plane) */
|
||||
{ DSPF_ARGB8565, SDL_PIXELFORMAT_UNKNOWN }, /* 24 bit ARGB (3 byte, alpha 8@16, red 5@11, green 6@5, blue 5@0) */
|
||||
{ DSPF_AVYU, SDL_PIXELFORMAT_UNKNOWN }, /* 32 bit AVYU 4:4:4 (4 byte, alpha 8@24, Cr 8@16, Y 8@8, Cb 8@0) */
|
||||
{ DSPF_VYU, SDL_PIXELFORMAT_UNKNOWN }, /* 24 bit VYU 4:4:4 (3 byte, Cr 8@16, Y 8@8, Cb 8@0) */
|
||||
#endif
|
||||
|
||||
{ DSPF_UNKNOWN, SDL_PIXELFORMAT_INDEX1LSB },
|
||||
{ DSPF_UNKNOWN, SDL_PIXELFORMAT_INDEX1MSB },
|
||||
{ DSPF_UNKNOWN, SDL_PIXELFORMAT_INDEX4LSB },
|
||||
{ DSPF_UNKNOWN, SDL_PIXELFORMAT_INDEX4MSB },
|
||||
{ DSPF_UNKNOWN, SDL_PIXELFORMAT_BGR24 },
|
||||
{ DSPF_UNKNOWN, SDL_PIXELFORMAT_BGR888 },
|
||||
{ DSPF_UNKNOWN, SDL_PIXELFORMAT_RGBA8888 },
|
||||
{ DSPF_UNKNOWN, SDL_PIXELFORMAT_ABGR8888 },
|
||||
{ DSPF_UNKNOWN, SDL_PIXELFORMAT_BGRA8888 },
|
||||
{ DSPF_UNKNOWN, SDL_PIXELFORMAT_ARGB2101010 },
|
||||
{ DSPF_UNKNOWN, SDL_PIXELFORMAT_ABGR4444 },
|
||||
{ DSPF_UNKNOWN, SDL_PIXELFORMAT_ABGR1555 },
|
||||
{ DSPF_UNKNOWN, SDL_PIXELFORMAT_BGR565 },
|
||||
{ DSPF_UNKNOWN, SDL_PIXELFORMAT_YVYU }, /**< Packed mode: Y0+V0+Y1+U0 (1 pla */
|
||||
};
|
||||
|
||||
Uint32
|
||||
DirectFB_DFBToSDLPixelFormat(DFBSurfacePixelFormat pixelformat)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i=0; pixelformat_tab[i].dfb != DSPF_UNKNOWN; i++)
|
||||
if (pixelformat_tab[i].dfb == pixelformat)
|
||||
{
|
||||
return pixelformat_tab[i].sdl;
|
||||
}
|
||||
return SDL_PIXELFORMAT_UNKNOWN;
|
||||
}
|
||||
|
||||
DFBSurfacePixelFormat
|
||||
DirectFB_SDLToDFBPixelFormat(Uint32 format)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i=0; pixelformat_tab[i].dfb != DSPF_UNKNOWN; i++)
|
||||
if (pixelformat_tab[i].sdl == format)
|
||||
{
|
||||
return pixelformat_tab[i].dfb;
|
||||
}
|
||||
return DSPF_UNKNOWN;
|
||||
}
|
||||
|
||||
void DirectFB_SetSupportedPixelFormats(SDL_RendererInfo* ri)
|
||||
{
|
||||
int i, j;
|
||||
|
||||
for (i=0, j=0; pixelformat_tab[i].dfb != DSPF_UNKNOWN; i++)
|
||||
if (pixelformat_tab[i].sdl != SDL_PIXELFORMAT_UNKNOWN)
|
||||
ri->texture_formats[j++] = pixelformat_tab[i].sdl;
|
||||
ri->num_texture_formats = j;
|
||||
}
|
||||
|
||||
#endif /* SDL_VIDEO_DRIVER_DIRECTFB */
|
||||
Reference in New Issue
Block a user