| /* |
| 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_DIRECTFB |
| |
| #include "SDL_assert.h" |
| #include "SDL_DirectFB_video.h" |
| #include "SDL_DirectFB_shape.h" |
| #include "SDL_DirectFB_window.h" |
| |
| #include "../SDL_shape_internals.h" |
| |
| SDL_WindowShaper* |
| DirectFB_CreateShaper(SDL_Window* window) { |
| SDL_WindowShaper* result = NULL; |
| SDL_ShapeData* data; |
| int resized_properly; |
| |
| result = malloc(sizeof(SDL_WindowShaper)); |
| result->window = window; |
| result->mode.mode = ShapeModeDefault; |
| result->mode.parameters.binarizationCutoff = 1; |
| result->userx = result->usery = 0; |
| data = SDL_malloc(sizeof(SDL_ShapeData)); |
| result->driverdata = data; |
| data->surface = NULL; |
| window->shaper = result; |
| resized_properly = DirectFB_ResizeWindowShape(window); |
| SDL_assert(resized_properly == 0); |
| |
| return result; |
| } |
| |
| int |
| DirectFB_ResizeWindowShape(SDL_Window* window) { |
| SDL_ShapeData* data = window->shaper->driverdata; |
| SDL_assert(data != NULL); |
| |
| if (window->x != -1000) |
| { |
| window->shaper->userx = window->x; |
| window->shaper->usery = window->y; |
| } |
| SDL_SetWindowPosition(window,-1000,-1000); |
| |
| return 0; |
| } |
| |
| int |
| DirectFB_SetWindowShape(SDL_WindowShaper *shaper,SDL_Surface *shape,SDL_WindowShapeMode *shape_mode) { |
| |
| if(shaper == NULL || shape == NULL || shaper->driverdata == NULL) |
| return -1; |
| if(shape->format->Amask == 0 && SDL_SHAPEMODEALPHA(shape_mode->mode)) |
| return -2; |
| if(shape->w != shaper->window->w || shape->h != shaper->window->h) |
| return -3; |
| |
| { |
| SDL_VideoDisplay *display = SDL_GetDisplayForWindow(shaper->window); |
| SDL_DFB_DEVICEDATA(display->device); |
| Uint32 *pixels; |
| Sint32 pitch; |
| Uint32 h,w; |
| Uint8 *src, *bitmap; |
| DFBSurfaceDescription dsc; |
| |
| SDL_ShapeData *data = shaper->driverdata; |
| |
| SDL_DFB_RELEASE(data->surface); |
| |
| dsc.flags = DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS; |
| dsc.width = shape->w; |
| dsc.height = shape->h; |
| dsc.caps = DSCAPS_PREMULTIPLIED; |
| dsc.pixelformat = DSPF_ARGB; |
| |
| SDL_DFB_CHECKERR(devdata->dfb->CreateSurface(devdata->dfb, &dsc, &data->surface)); |
| |
| /* Assume that shaper->alphacutoff already has a value, because SDL_SetWindowShape() should have given it one. */ |
| SDL_DFB_ALLOC_CLEAR(bitmap, shape->w * shape->h); |
| SDL_CalculateShapeBitmap(shaper->mode,shape,bitmap,1); |
| |
| src = bitmap; |
| |
| SDL_DFB_CHECK(data->surface->Lock(data->surface, DSLF_WRITE | DSLF_READ, (void **) &pixels, &pitch)); |
| |
| h = shaper->window->h; |
| while (h--) { |
| for (w = 0; w < shaper->window->w; w++) { |
| if (*src) |
| pixels[w] = 0xFFFFFFFF; |
| else |
| pixels[w] = 0; |
| src++; |
| |
| } |
| pixels += (pitch >> 2); |
| } |
| SDL_DFB_CHECK(data->surface->Unlock(data->surface)); |
| SDL_DFB_FREE(bitmap); |
| |
| /* FIXME: Need to call this here - Big ?? */ |
| DirectFB_WM_RedrawLayout(SDL_GetDisplayForWindow(shaper->window)->device, shaper->window); |
| } |
| |
| return 0; |
| error: |
| return -1; |
| } |
| |
| #endif /* SDL_VIDEO_DRIVER_DIRECTFB */ |