mirror of
https://github.com/Ryujinx/SDL.git
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132 lines
4.1 KiB
C
132 lines
4.1 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2017 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_assert.h"
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#include "SDL_DirectFB_video.h"
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#include "SDL_DirectFB_shape.h"
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#include "SDL_DirectFB_window.h"
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#include "../SDL_shape_internals.h"
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SDL_WindowShaper*
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DirectFB_CreateShaper(SDL_Window* window) {
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SDL_WindowShaper* result = NULL;
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SDL_ShapeData* data;
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int resized_properly;
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result = malloc(sizeof(SDL_WindowShaper));
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result->window = window;
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result->mode.mode = ShapeModeDefault;
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result->mode.parameters.binarizationCutoff = 1;
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result->userx = result->usery = 0;
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data = SDL_malloc(sizeof(SDL_ShapeData));
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result->driverdata = data;
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data->surface = NULL;
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window->shaper = result;
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resized_properly = DirectFB_ResizeWindowShape(window);
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SDL_assert(resized_properly == 0);
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return result;
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}
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int
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DirectFB_ResizeWindowShape(SDL_Window* window) {
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SDL_ShapeData* data = window->shaper->driverdata;
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SDL_assert(data != NULL);
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if (window->x != -1000)
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{
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window->shaper->userx = window->x;
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window->shaper->usery = window->y;
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}
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SDL_SetWindowPosition(window,-1000,-1000);
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return 0;
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}
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int
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DirectFB_SetWindowShape(SDL_WindowShaper *shaper,SDL_Surface *shape,SDL_WindowShapeMode *shape_mode) {
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if(shaper == NULL || shape == NULL || shaper->driverdata == NULL)
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return -1;
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if(shape->format->Amask == 0 && SDL_SHAPEMODEALPHA(shape_mode->mode))
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return -2;
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if(shape->w != shaper->window->w || shape->h != shaper->window->h)
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return -3;
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{
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SDL_VideoDisplay *display = SDL_GetDisplayForWindow(shaper->window);
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SDL_DFB_DEVICEDATA(display->device);
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Uint32 *pixels;
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Sint32 pitch;
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Uint32 h,w;
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Uint8 *src, *bitmap;
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DFBSurfaceDescription dsc;
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SDL_ShapeData *data = shaper->driverdata;
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SDL_DFB_RELEASE(data->surface);
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dsc.flags = DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS;
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dsc.width = shape->w;
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dsc.height = shape->h;
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dsc.caps = DSCAPS_PREMULTIPLIED;
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dsc.pixelformat = DSPF_ARGB;
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SDL_DFB_CHECKERR(devdata->dfb->CreateSurface(devdata->dfb, &dsc, &data->surface));
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/* Assume that shaper->alphacutoff already has a value, because SDL_SetWindowShape() should have given it one. */
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SDL_DFB_ALLOC_CLEAR(bitmap, shape->w * shape->h);
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SDL_CalculateShapeBitmap(shaper->mode,shape,bitmap,1);
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src = bitmap;
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SDL_DFB_CHECK(data->surface->Lock(data->surface, DSLF_WRITE | DSLF_READ, (void **) &pixels, &pitch));
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h = shaper->window->h;
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while (h--) {
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for (w = 0; w < shaper->window->w; w++) {
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if (*src)
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pixels[w] = 0xFFFFFFFF;
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else
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pixels[w] = 0;
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src++;
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}
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pixels += (pitch >> 2);
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}
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SDL_DFB_CHECK(data->surface->Unlock(data->surface));
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SDL_DFB_FREE(bitmap);
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/* FIXME: Need to call this here - Big ?? */
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DirectFB_WM_RedrawLayout(SDL_GetDisplayForWindow(shaper->window)->device, shaper->window);
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}
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return 0;
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error:
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return -1;
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}
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#endif /* SDL_VIDEO_DRIVER_DIRECTFB */
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