SDL_DirectFB_shape.c
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2016 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_Window*
DirectFB_CreateShapedWindow(const char *title,unsigned int x,unsigned int y,unsigned int w,unsigned int h,Uint32 flags) {
return SDL_CreateWindow(title,x,y,w,h,flags /* | SDL_DFB_WINDOW_SHAPED */);
}
SDL_WindowShaper*
DirectFB_CreateShaper(SDL_Window* window) {
SDL_WindowShaper* result = NULL;
result = malloc(sizeof(SDL_WindowShaper));
result->window = window;
result->mode.mode = ShapeModeDefault;
result->mode.parameters.binarizationCutoff = 1;
result->userx = result->usery = 0;
SDL_ShapeData* data = SDL_malloc(sizeof(SDL_ShapeData));
result->driverdata = data;
data->surface = NULL;
window->shaper = result;
int 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 */
SDL_DirectFB_video.h
bitmap
GLsizei GLfixed GLfixed GLfixed GLfixed const GLubyte * bitmap
Definition: SDL_opengl_glext.h:4534
DirectFB_CreateShapedWindow
SDL_Window * DirectFB_CreateShapedWindow(const char *title, unsigned int x, unsigned int y, unsigned int w, unsigned int h, Uint32 flags)
DirectFB_CreateShaper
SDL_WindowShaper * DirectFB_CreateShaper(SDL_Window *window)
SDL_DFB_FREE
#define SDL_DFB_FREE(x)
Definition: SDL_DirectFB_video.h:79
result
GLuint64EXT * result
Definition: SDL_opengl_glext.h:9432
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:157
SDL_Window::w
int w
Definition: SDL_sysvideo.h:78
SDL_Surface::h
int h
Definition: SDL_surface.h:73
x
GLint GLint GLint GLint GLint x
Definition: SDL_opengl.h:1567
SDL_Window::x
int x
Definition: SDL_sysvideo.h:77
window
SDL_Window * window
Definition: testautomation_render.c:26
SDL_Surface
A collection of pixels used in software blitting.
Definition: SDL_surface.h:69
SDL_WindowShaper::driverdata
void * driverdata
Definition: SDL_sysvideo.h:52
data
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1967
pixels
GLint GLint GLsizei GLsizei GLsizei GLint GLenum GLenum const GLvoid * pixels
Definition: SDL_opengl.h:1565
SDL_CreateWindow
#define SDL_CreateWindow
Definition: SDL_dynapi_overrides.h:518
SDL_SHAPEMODEALPHA
#define SDL_SHAPEMODEALPHA(mode)
Definition: SDL_shape.h:90
SDL_ShapeData
Definition: SDL_cocoashape.h:32
SDL_ShapeData::surface
IDirectFBSurface * surface
Definition: SDL_DirectFB_shape.h:31
SDL_Surface::w
int w
Definition: SDL_surface.h:73
SDL_WindowShaper
Definition: SDL_sysvideo.h:38
SDL_DFB_RELEASE
#define SDL_DFB_RELEASE(x)
Definition: SDL_DirectFB_video.h:78
SDL_DirectFB_window.h
SDL_VideoDisplay::device
SDL_VideoDevice * device
Definition: SDL_sysvideo.h:131
SDL_WindowShaper::mode
SDL_WindowShapeMode mode
Definition: SDL_sysvideo.h:47
SDL_DFB_DEVICEDATA
#define SDL_DFB_DEVICEDATA(dev)
Definition: SDL_DirectFB_video.h:126
y
GLint GLint GLint GLint GLint GLint y
Definition: SDL_opengl.h:1567
SDL_Window::shaper
SDL_WindowShaper * shaper
Definition: SDL_sysvideo.h:99
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
SDL_WindowShaper::window
SDL_Window * window
Definition: SDL_sysvideo.h:41
SDL_DirectFB_shape.h
ShapeModeDefault
The default mode, a binarized alpha cutoff of 1.
Definition: SDL_shape.h:81
SDL_WindowShapeMode::parameters
SDL_WindowShapeParams parameters
Window-shape parameters.
Definition: SDL_shape.h:104
SDL_Window::y
int y
Definition: SDL_sysvideo.h:77
SDL_WindowShaper::userx
Uint32 userx
Definition: SDL_sysvideo.h:44
Sint32
int32_t Sint32
Definition: SDL_stdinc.h:153
SDL_WindowShaper::usery
Uint32 usery
Definition: SDL_sysvideo.h:44
DirectFB_SetWindowShape
int DirectFB_SetWindowShape(SDL_WindowShaper *shaper, SDL_Surface *shape, SDL_WindowShapeMode *shapeMode)
SDL_VideoDisplay
Definition: SDL_sysvideo.h:120
SDL_Window::h
int h
Definition: SDL_sysvideo.h:78
SDL_assert
#define SDL_assert(condition)
Definition: SDL_assert.h:167
NULL
#define NULL
Definition: begin_code.h:143
SDL_DFB_ALLOC_CLEAR
#define SDL_DFB_ALLOC_CLEAR(r, s)
Definition: SDL_DirectFB_video.h:122
SDL_DFB_CHECKERR
#define SDL_DFB_CHECKERR(x...)
Definition: SDL_DirectFB_video.h:100
SDL_Surface::format
SDL_PixelFormat * format
Definition: SDL_surface.h:72
malloc
#define malloc
Definition: SDL_malloc.c:641
DirectFB_ResizeWindowShape
int DirectFB_ResizeWindowShape(SDL_Window *window)
SDL_GetDisplayForWindow
SDL_VideoDisplay * SDL_GetDisplayForWindow(SDL_Window *window)
Definition: SDL_video.c:1039
DirectFB_WM_RedrawLayout
void DirectFB_WM_RedrawLayout(_THIS, SDL_Window *window)
SDL_DFB_CHECK
#define SDL_DFB_CHECK(x...)
Definition: SDL_DirectFB_video.h:99
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:71
SDL_WindowShapeParams::binarizationCutoff
Uint8 binarizationCutoff
a cutoff alpha value for binarization of the window shape&#39;s alpha channel.
Definition: SDL_shape.h:95
flags
GLbitfield flags
Definition: SDL_opengl_glext.h:1480
SDL_malloc
#define SDL_malloc
Definition: SDL_dynapi_overrides.h:380
SDL_WindowShapeMode
A struct that tags the SDL_WindowShapeParams union with an enum describing the type of its contents...
Definition: SDL_shape.h:100
SDL_PixelFormat::Amask
Uint32 Amask
Definition: SDL_pixels.h:309
w
GLubyte GLubyte GLubyte GLubyte w
Definition: SDL_opengl_glext.h:731
SDL_WindowShapeMode::mode
WindowShapeMode mode
The mode of these window-shape parameters.
Definition: SDL_shape.h:102
src
GLenum src
Definition: SDL_opengl_glext.h:1737
SDL_SetWindowPosition
#define SDL_SetWindowPosition
Definition: SDL_dynapi_overrides.h:528
h
GLfloat GLfloat GLfloat GLfloat h
Definition: SDL_opengl_glext.h:1946
SDL_CalculateShapeBitmap
void SDL_CalculateShapeBitmap(SDL_WindowShapeMode mode, SDL_Surface *shape, Uint8 *bitmap, Uint8 ppb)
Definition: SDL_shape.c:67
SDL_assert.h