SDL_DirectFB_shape.c
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2019 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 */
malloc
#define malloc
Definition: SDL_qsort.c:47
Uint32
uint32_t Uint32
Definition: SDL_stdinc.h:203
Sint32
int32_t Sint32
Definition: SDL_stdinc.h:197
SDL_Surface
A collection of pixels used in software blitting.
Definition: SDL_surface.h:70
NULL
#define NULL
Definition: begin_code.h:167
SDL_VideoDisplay::device
SDL_VideoDevice * device
Definition: SDL_sysvideo.h:137
SDL_Surface::w
int w
Definition: SDL_surface.h:74
SDL_SHAPEMODEALPHA
#define SDL_SHAPEMODEALPHA(mode)
Definition: SDL_shape.h:91
SDL_GetDisplayForWindow
SDL_VideoDisplay * SDL_GetDisplayForWindow(SDL_Window *window)
Definition: SDL_video.c:1089
h
GLfloat GLfloat GLfloat GLfloat h
Definition: SDL_opengl_glext.h:1946
SDL_DirectFB_window.h
result
GLuint64EXT * result
Definition: SDL_opengl_glext.h:9432
DirectFB_CreateShaper
SDL_WindowShaper * DirectFB_CreateShaper(SDL_Window *window)
data
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
SDL_WindowShaper::window
SDL_Window * window
Definition: SDL_sysvideo.h:43
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:73
SDL_WindowShapeMode
A struct that tags the SDL_WindowShapeParams union with an enum describing the type of its contents.
Definition: SDL_shape.h:101
SDL_ShapeData
Definition: SDL_cocoashape.h:32
SDL_WindowShapeMode::mode
WindowShapeMode mode
The mode of these window-shape parameters.
Definition: SDL_shape.h:103
SDL_Window::w
int w
Definition: SDL_sysvideo.h:80
SDL_DirectFB_shape.h
window
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
DirectFB_ResizeWindowShape
int DirectFB_ResizeWindowShape(SDL_Window *window)
DirectFB_SetWindowShape
int DirectFB_SetWindowShape(SDL_WindowShaper *shaper, SDL_Surface *shape, SDL_WindowShapeMode *shapeMode)
SDL_DFB_RELEASE
#define SDL_DFB_RELEASE(x)
Definition: SDL_DirectFB_video.h:78
SDL_assert.h
SDL_DFB_DEVICEDATA
#define SDL_DFB_DEVICEDATA(dev)
Definition: SDL_DirectFB_video.h:126
SDL_PixelFormat::Amask
Uint32 Amask
Definition: SDL_pixels.h:325
SDL_DFB_CHECK
#define SDL_DFB_CHECK(x...)
Definition: SDL_DirectFB_video.h:99
SDL_assert
#define SDL_assert(condition)
Definition: SDL_assert.h:169
pixels
GLint GLint GLsizei GLsizei GLsizei GLint GLenum GLenum const GLvoid * pixels
Definition: SDL_opengl.h:1572
SDL_Window::h
int h
Definition: SDL_sysvideo.h:80
SDL_WindowShaper
Definition: SDL_sysvideo.h:40
SDL_WindowShaper::mode
SDL_WindowShapeMode mode
Definition: SDL_sysvideo.h:49
SDL_DFB_ALLOC_CLEAR
#define SDL_DFB_ALLOC_CLEAR(r, s)
Definition: SDL_DirectFB_video.h:122
SDL_Surface::h
int h
Definition: SDL_surface.h:74
bitmap
GLsizei GLfixed GLfixed GLfixed GLfixed const GLubyte * bitmap
Definition: SDL_opengl_glext.h:4534
src
GLenum src
Definition: SDL_opengl_glext.h:1737
SDL_DFB_FREE
#define SDL_DFB_FREE(x)
Definition: SDL_DirectFB_video.h:79
SDL_VideoDisplay
Definition: SDL_sysvideo.h:125
DirectFB_WM_RedrawLayout
void DirectFB_WM_RedrawLayout(_THIS, SDL_Window *window)
SDL_DFB_CHECKERR
#define SDL_DFB_CHECKERR(x...)
Definition: SDL_DirectFB_video.h:100
SDL_malloc
#define SDL_malloc
Definition: SDL_dynapi_overrides.h:374
ShapeModeDefault
@ ShapeModeDefault
The default mode, a binarized alpha cutoff of 1.
Definition: SDL_shape.h:82
SDL_WindowShaper::driverdata
void * driverdata
Definition: SDL_sysvideo.h:54
SDL_CalculateShapeBitmap
void SDL_CalculateShapeBitmap(SDL_WindowShapeMode mode, SDL_Surface *shape, Uint8 *bitmap, Uint8 ppb)
Definition: SDL_shape.c:71
SDL_SetWindowPosition
#define SDL_SetWindowPosition
Definition: SDL_dynapi_overrides.h:524
SDL_Surface::format
SDL_PixelFormat * format
Definition: SDL_surface.h:73
SDL_DirectFB_video.h
w
GLubyte GLubyte GLubyte GLubyte w
Definition: SDL_opengl_glext.h:731
Uint8
uint8_t Uint8
Definition: SDL_stdinc.h:179