SDL 2.0
SDL_DirectFB_shape.c
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1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
4
5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software.
8
9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions:
12
13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution.
20*/
21#include "../../SDL_internal.h"
22
23#if SDL_VIDEO_DRIVER_DIRECTFB
24
25#include "SDL_assert.h"
26#include "SDL_DirectFB_video.h"
27#include "SDL_DirectFB_shape.h"
28#include "SDL_DirectFB_window.h"
29
30#include "../SDL_shape_internals.h"
31
36 int resized_properly;
37
39 result->window = window;
40 result->mode.mode = ShapeModeDefault;
41 result->mode.parameters.binarizationCutoff = 1;
42 result->userx = result->usery = 0;
43 data = SDL_malloc(sizeof(SDL_ShapeData));
44 result->driverdata = data;
45 data->surface = NULL;
46 window->shaper = result;
47 resized_properly = DirectFB_ResizeWindowShape(window);
48 SDL_assert(resized_properly == 0);
49
50 return result;
51}
52
53int
55 SDL_ShapeData* data = window->shaper->driverdata;
57
58 if (window->x != -1000)
59 {
60 window->shaper->userx = window->x;
61 window->shaper->usery = window->y;
62 }
63 SDL_SetWindowPosition(window,-1000,-1000);
64
65 return 0;
66}
67
68int
70
71 if(shaper == NULL || shape == NULL || shaper->driverdata == NULL)
72 return -1;
73 if(shape->format->Amask == 0 && SDL_SHAPEMODEALPHA(shape_mode->mode))
74 return -2;
75 if(shape->w != shaper->window->w || shape->h != shaper->window->h)
76 return -3;
77
78 {
80 SDL_DFB_DEVICEDATA(display->device);
82 Sint32 pitch;
83 Uint32 h,w;
84 Uint8 *src, *bitmap;
85 DFBSurfaceDescription dsc;
86
87 SDL_ShapeData *data = shaper->driverdata;
88
89 SDL_DFB_RELEASE(data->surface);
90
91 dsc.flags = DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS;
92 dsc.width = shape->w;
93 dsc.height = shape->h;
94 dsc.caps = DSCAPS_PREMULTIPLIED;
95 dsc.pixelformat = DSPF_ARGB;
96
97 SDL_DFB_CHECKERR(devdata->dfb->CreateSurface(devdata->dfb, &dsc, &data->surface));
98
99 /* Assume that shaper->alphacutoff already has a value, because SDL_SetWindowShape() should have given it one. */
100 SDL_DFB_ALLOC_CLEAR(bitmap, shape->w * shape->h);
101 SDL_CalculateShapeBitmap(shaper->mode,shape,bitmap,1);
102
103 src = bitmap;
104
105 SDL_DFB_CHECK(data->surface->Lock(data->surface, DSLF_WRITE | DSLF_READ, (void **) &pixels, &pitch));
106
107 h = shaper->window->h;
108 while (h--) {
109 for (w = 0; w < shaper->window->w; w++) {
110 if (*src)
111 pixels[w] = 0xFFFFFFFF;
112 else
113 pixels[w] = 0;
114 src++;
115
116 }
117 pixels += (pitch >> 2);
118 }
119 SDL_DFB_CHECK(data->surface->Unlock(data->surface));
121
122 /* FIXME: Need to call this here - Big ?? */
124 }
125
126 return 0;
127error:
128 return -1;
129}
130
131#endif /* SDL_VIDEO_DRIVER_DIRECTFB */
void DirectFB_WM_RedrawLayout(_THIS, SDL_Window *window)
int DirectFB_ResizeWindowShape(SDL_Window *window)
int DirectFB_SetWindowShape(SDL_WindowShaper *shaper, SDL_Surface *shape, SDL_WindowShapeMode *shapeMode)
SDL_WindowShaper * DirectFB_CreateShaper(SDL_Window *window)
#define SDL_DFB_CHECKERR(x...)
#define SDL_DFB_FREE(x)
#define SDL_DFB_ALLOC_CLEAR(r, s)
#define SDL_DFB_CHECK(x...)
#define SDL_DFB_DEVICEDATA(dev)
#define SDL_DFB_RELEASE(x)
#define SDL_assert(condition)
Definition: SDL_assert.h:169
#define SDL_SetWindowPosition
#define SDL_malloc
GLint GLint GLsizei GLsizei GLsizei GLint GLenum GLenum const GLvoid * pixels
Definition: SDL_opengl.h:1572
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
GLenum src
GLuint64EXT * result
GLsizei GLfixed GLfixed GLfixed GLfixed const GLubyte * bitmap
GLfloat GLfloat GLfloat GLfloat h
GLubyte GLubyte GLubyte GLubyte w
#define malloc
Definition: SDL_qsort.c:47
void SDL_CalculateShapeBitmap(SDL_WindowShapeMode mode, SDL_Surface *shape, Uint8 *bitmap, Uint8 ppb)
Definition: SDL_shape.c:71
@ ShapeModeDefault
The default mode, a binarized alpha cutoff of 1.
Definition: SDL_shape.h:82
#define SDL_SHAPEMODEALPHA(mode)
Definition: SDL_shape.h:91
uint32_t Uint32
Definition: SDL_stdinc.h:203
int32_t Sint32
Definition: SDL_stdinc.h:197
uint8_t Uint8
Definition: SDL_stdinc.h:179
SDL_VideoDisplay * SDL_GetDisplayForWindow(SDL_Window *window)
Definition: SDL_video.c:1089
#define NULL
Definition: begin_code.h:167
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
A collection of pixels used in software blitting.
Definition: SDL_surface.h:71
SDL_PixelFormat * format
Definition: SDL_surface.h:73
SDL_VideoDevice * device
Definition: SDL_sysvideo.h:137
The type used to identify a window.
Definition: SDL_sysvideo.h:74
A struct that tags the SDL_WindowShapeParams union with an enum describing the type of its contents.
Definition: SDL_shape.h:101
WindowShapeMode mode
The mode of these window-shape parameters.
Definition: SDL_shape.h:103
SDL_Window * window
Definition: SDL_sysvideo.h:43
SDL_WindowShapeMode mode
Definition: SDL_sysvideo.h:49