Mercurial > sdl-ios-xcode
view src/video/directfb/SDL_DirectFB_video.c @ 4590:1ad70fb49fcb
Fix so many things that there is little place in this column to list them all but the result is that blending modes just work now for drawing primitives.
Fixes involved:
1. Fix handling of alpha channel when SDL_BLENDMODE_NONE is set.
2. Make xrendercolor use floating-point values for color channels and then convert to 16 bit ints.
3. Fix handling of visuals in SDL_x11modes.c so that a 32 bit ARGB visual is used.
4. Fix the background pixel value in SDL_x11window.c so that the window background has an alpha value of 0xFF and not 0.
author | Sunny Sachanandani <sunnysachanandani@gmail.com> |
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date | Fri, 09 Jul 2010 21:36:41 +0530 |
parents | f7b03b6838cb |
children | 25b9cd8bdc30 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2010 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org SDL1.3 implementation by couriersud@arcor.de */ #include "SDL_config.h" /* DirectFB video driver implementation. */ #include <fcntl.h> #include <unistd.h> #include <sys/mman.h> #include <directfb.h> #include <directfb_version.h> #include <directfb_strings.h> #include "SDL_video.h" #include "SDL_mouse.h" #include "../SDL_sysvideo.h" #include "../SDL_pixels_c.h" #include "../../events/SDL_events_c.h" #include "SDL_DirectFB_video.h" #include "SDL_DirectFB_events.h" #include "SDL_DirectFB_render.h" #include "SDL_DirectFB_mouse.h" #include "SDL_DirectFB_dyn.h" /* Initialization/Query functions */ static int DirectFB_VideoInit(_THIS); static void DirectFB_VideoQuit(_THIS); static int DirectFB_Available(void); static SDL_VideoDevice *DirectFB_CreateDevice(int devindex); VideoBootStrap DirectFB_bootstrap = { "directfb", "DirectFB", DirectFB_Available, DirectFB_CreateDevice }; /* DirectFB driver bootstrap functions */ static int DirectFB_Available(void) { if (!SDL_DirectFB_LoadLibrary()) return 0; SDL_DirectFB_UnLoadLibrary(); return 1; } static void DirectFB_DeleteDevice(SDL_VideoDevice * device) { SDL_DirectFB_UnLoadLibrary(); SDL_DFB_FREE(device->driverdata); SDL_DFB_FREE(device); } static SDL_VideoDevice * DirectFB_CreateDevice(int devindex) { SDL_VideoDevice *device; if (!SDL_DirectFB_LoadLibrary()) return NULL; /* Initialize all variables that we clean on shutdown */ SDL_DFB_CALLOC(device, 1, sizeof(SDL_VideoDevice)); /* Set the function pointers */ /* Set the function pointers */ device->VideoInit = DirectFB_VideoInit; device->VideoQuit = DirectFB_VideoQuit; device->GetDisplayModes = DirectFB_GetDisplayModes; device->SetDisplayMode = DirectFB_SetDisplayMode; device->PumpEvents = DirectFB_PumpEventsWindow; device->CreateWindow = DirectFB_CreateWindow; device->CreateWindowFrom = DirectFB_CreateWindowFrom; device->SetWindowTitle = DirectFB_SetWindowTitle; device->SetWindowIcon = DirectFB_SetWindowIcon; device->SetWindowPosition = DirectFB_SetWindowPosition; device->SetWindowSize = DirectFB_SetWindowSize; device->ShowWindow = DirectFB_ShowWindow; device->HideWindow = DirectFB_HideWindow; device->RaiseWindow = DirectFB_RaiseWindow; device->MaximizeWindow = DirectFB_MaximizeWindow; device->MinimizeWindow = DirectFB_MinimizeWindow; device->RestoreWindow = DirectFB_RestoreWindow; device->SetWindowGrab = DirectFB_SetWindowGrab; device->DestroyWindow = DirectFB_DestroyWindow; device->GetWindowWMInfo = DirectFB_GetWindowWMInfo; #if SDL_DIRECTFB_OPENGL device->GL_LoadLibrary = DirectFB_GL_LoadLibrary; device->GL_GetProcAddress = DirectFB_GL_GetProcAddress; device->GL_MakeCurrent = DirectFB_GL_MakeCurrent; device->GL_CreateContext = DirectFB_GL_CreateContext; device->GL_SetSwapInterval = DirectFB_GL_SetSwapInterval; device->GL_GetSwapInterval = DirectFB_GL_GetSwapInterval; device->GL_SwapWindow = DirectFB_GL_SwapWindow; device->GL_DeleteContext = DirectFB_GL_DeleteContext; #endif device->free = DirectFB_DeleteDevice; return device; error: if (device) free(device); return (0); } static const DirectFBSurfaceDrawingFlagsNames(drawing_flags); static const DirectFBSurfaceBlittingFlagsNames(blitting_flags); static const DirectFBAccelerationMaskNames(acceleration_mask); static void DirectFB_DeviceInformation(IDirectFB * dfb) { DFBGraphicsDeviceDescription desc; int n; dfb->GetDeviceDescription(dfb, &desc); fprintf(LOG_CHANNEL, "DirectFB Device Information\n"); fprintf(LOG_CHANNEL, "===========================\n"); fprintf(LOG_CHANNEL, "Name: %s\n", desc.name); fprintf(LOG_CHANNEL, "Vendor: %s\n", desc.vendor); fprintf(LOG_CHANNEL, "Driver Name: %s\n", desc.driver.name); fprintf(LOG_CHANNEL, "Driver Vendor: %s\n", desc.driver.vendor); fprintf(LOG_CHANNEL, "Driver Version: %d.%d\n", desc.driver.major, desc.driver.minor); fprintf(LOG_CHANNEL, "\nVideo memoory: %d\n", desc.video_memory); fprintf(LOG_CHANNEL, "\nBlitting flags:\n"); for (n = 0; blitting_flags[n].flag; n++) { if (desc.blitting_flags & blitting_flags[n].flag) printf(" %s\n", blitting_flags[n].name); } fprintf(LOG_CHANNEL, "\nDrawing flags:\n"); for (n = 0; drawing_flags[n].flag; n++) { if (desc.drawing_flags & drawing_flags[n].flag) printf(" %s\n", drawing_flags[n].name); } fprintf(LOG_CHANNEL, "\nAcceleration flags:\n"); for (n = 0; acceleration_mask[n].mask; n++) { if (desc.acceleration_mask & acceleration_mask[n].mask) printf(" %s\n", acceleration_mask[n].name); } } static int DirectFB_VideoInit(_THIS) { IDirectFB *dfb = NULL; DFB_DeviceData *devdata = NULL; char *stemp; DFBResult ret; SDL_DFB_CALLOC(devdata, 1, sizeof(*devdata)); SDL_DFB_CHECKERR(DirectFBInit(NULL, NULL)); /* avoid switching to the framebuffer when we * are running X11 */ stemp = SDL_getenv(DFBENV_USE_X11_CHECK); if (stemp) ret = atoi(stemp); else ret = 1; if (ret) { if (SDL_getenv("DISPLAY")) DirectFBSetOption("system", "x11"); else DirectFBSetOption("disable-module", "x11input"); } devdata->use_linux_input = 1; /* default: on */ stemp = SDL_getenv(DFBENV_USE_LINUX_INPUT); if (stemp) devdata->use_linux_input = atoi(stemp); if (!devdata->use_linux_input) DirectFBSetOption("disable-module", "linux_input"); SDL_DFB_CHECKERR(DirectFBCreate(&dfb)); DirectFB_DeviceInformation(dfb); devdata->use_yuv_underlays = 0; /* default: off */ stemp = SDL_getenv(DFBENV_USE_YUV_UNDERLAY); if (stemp) devdata->use_yuv_underlays = atoi(stemp); /* Create global Eventbuffer for axis events */ if (devdata->use_linux_input) { SDL_DFB_CHECKERR(dfb->CreateInputEventBuffer(dfb, DICAPS_ALL, DFB_TRUE, &devdata->events)); } else { SDL_DFB_CHECKERR(dfb->CreateInputEventBuffer(dfb, DICAPS_AXES /*DICAPS_ALL */ , DFB_TRUE, &devdata->events)); } devdata->initialized = 1; /* simple window manager support */ stemp = SDL_getenv(DFBENV_USE_WM); if (stemp) devdata->has_own_wm = atoi(stemp); else devdata->has_own_wm = 0; devdata->dfb = dfb; devdata->firstwin = NULL; _this->driverdata = devdata; DirectFB_InitModes(_this); #if SDL_DIRECTFB_OPENGL DirectFB_GL_Initialize(_this); #endif DirectFB_AddRenderDriver(_this); DirectFB_InitMouse(_this); DirectFB_InitKeyboard(_this); return 0; error: SDL_DFB_FREE(devdata); SDL_DFB_RELEASE(dfb); return -1; } static void DirectFB_VideoQuit(_THIS) { DFB_DeviceData *devdata = (DFB_DeviceData *) _this->driverdata; DirectFB_QuitModes(_this); DirectFB_QuitKeyboard(_this); DirectFB_QuitMouse(_this); SDL_DFB_RELEASE(devdata->events); SDL_DFB_RELEASE(devdata->dfb); #if SDL_DIRECTFB_OPENGL DirectFB_GL_Shutdown(_this); #endif devdata->initialized = 0; }