Mercurial > sdl-ios-xcode

annotate src/video/SDL_shape.c @ 4830:3dfe779900f5

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Compiling for cocoa now works. Does it run? We'll see.
author egottlieb
date Tue, 03 Aug 2010 23:22:31 -0400
parents 5660aac926e9
children 0c82f20327ec
rev   line source
4765
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
parents:
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1 /*
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
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2 SDL - Simple DirectMedia Layer
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
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3 Copyright (C) 2010 Eli Gottlieb
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
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4
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
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5 This library is free software; you can redistribute it and/or
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
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diff changeset
6 modify it under the terms of the GNU Lesser General Public
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
parents:
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
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9
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
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diff changeset
10 This library is distributed in the hope that it will be useful,
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
parents:
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
parents:
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
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13 Lesser General Public License for more details.
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
parents:
diff changeset
14
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
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15 You should have received a copy of the GNU Lesser General Public
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
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16 License along with this library; if not, write to the Free Software
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
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18
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
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19 Eli Gottlieb
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
parents:
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20 eligottlieb@gmail.com
5ff305de5834 Added stub files, working on sample program SDLeyes.
Eli Gottlieb <eligottlieb@gmail.com>
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21 */
4769
83f9b95da263 Added the standard headers and footers that make SDL_shape.h and SDL_shape.c integrate properly into the build.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4766
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22 #include "SDL_config.h"
4776
29dcad9c58b3 Removed and added back SDL_shape.{c,h} wholesale. Will this get them tracked properly?
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4775
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23
4769
83f9b95da263 Added the standard headers and footers that make SDL_shape.h and SDL_shape.c integrate properly into the build.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4766
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24 #include "SDL.h"
83f9b95da263 Added the standard headers and footers that make SDL_shape.h and SDL_shape.c integrate properly into the build.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4766
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25 #include "SDL_video.h"
83f9b95da263 Added the standard headers and footers that make SDL_shape.h and SDL_shape.c integrate properly into the build.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4766
diff changeset
26 #include "SDL_sysvideo.h"
4782
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4781
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27 #include "SDL_pixels.h"
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4781
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28 #include "SDL_surface.h"
4765
5ff305de5834 Added stub files, working on sample program SDLeyes.
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29 #include "SDL_shape.h"
4827
5660aac926e9 Got basic, pre-actually-writing-anything Cocoa to build.
egottlieb
parents: 4822
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30 #include "SDL_shape_internals.h"
4766
7b50faf23907 Moved SDL_shape.h, and building out the API as needed by SDL_Eyes.
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parents: 4765
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31
4769
83f9b95da263 Added the standard headers and footers that make SDL_shape.h and SDL_shape.c integrate properly into the build.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4766
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32 SDL_Window* SDL_CreateShapedWindow(const char *title,unsigned int x,unsigned int y,unsigned int w,unsigned int h,Uint32 flags) {
4810
7a602fd2121f OK, it appears that dramatic hacks are not necessary to make Cocoa work...
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4809
diff changeset
33 SDL_Window *result = SDL_CreateWindow(title,x,y,w,h,SDL_WINDOW_BORDERLESS | flags & !SDL_WINDOW_FULLSCREEN & !SDL_WINDOW_SHOWN);
4796
e8caf178d082 Added in Visual Studio patch.
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parents: 4795
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34 if(result != NULL) {
e8caf178d082 Added in Visual Studio patch.
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parents: 4795
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35 result->shaper = result->display->device->shape_driver.CreateShaper(result);
e8caf178d082 Added in Visual Studio patch.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4795
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36 if(result->shaper != NULL) {
e8caf178d082 Added in Visual Studio patch.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4795
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37 result->shaper->usershownflag = flags & SDL_WINDOW_SHOWN;
4807
c9eb95f29770 Added color-key mode and redid the code to work with it.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4806
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38 result->shaper->mode.mode = ShapeModeDefault;
c9eb95f29770 Added color-key mode and redid the code to work with it.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4806
diff changeset
39 result->shaper->mode.parameters.binarizationCutoff = 1;
4796
e8caf178d082 Added in Visual Studio patch.
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parents: 4795
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40 result->shaper->hasshape = SDL_FALSE;
e8caf178d082 Added in Visual Studio patch.
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parents: 4795
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41 return result;
e8caf178d082 Added in Visual Studio patch.
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42 }
e8caf178d082 Added in Visual Studio patch.
Eli Gottlieb <eligottlieb@gmail.com>
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43 else {
e8caf178d082 Added in Visual Studio patch.
Eli Gottlieb <eligottlieb@gmail.com>
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44 SDL_DestroyWindow(result);
e8caf178d082 Added in Visual Studio patch.
Eli Gottlieb <eligottlieb@gmail.com>
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45 return NULL;
e8caf178d082 Added in Visual Studio patch.
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parents: 4795
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46 }
e8caf178d082 Added in Visual Studio patch.
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47 }
e8caf178d082 Added in Visual Studio patch.
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48 else
e8caf178d082 Added in Visual Studio patch.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4795
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49 return NULL;
4766
7b50faf23907 Moved SDL_shape.h, and building out the API as needed by SDL_Eyes.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4765
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50 }
7b50faf23907 Moved SDL_shape.h, and building out the API as needed by SDL_Eyes.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4765
diff changeset
51
4781
fc4c775b468a Added Andreas's fixes to the header and stub file for SDL_shape.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4780
diff changeset
52 SDL_bool SDL_IsShapedWindow(const SDL_Window *window) {
4782
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4781
diff changeset
53 if(window == NULL)
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
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parents: 4781
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54 return SDL_FALSE;
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
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parents: 4781
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55 else
4789
a6bc01875d20 Fixed a pair of syntax errors.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4787
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56 return (SDL_bool)(window->shaper != NULL);
4782
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4781
diff changeset
57 }
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
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parents: 4781
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58
4813
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
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59 /* REQUIRES that bitmap point to a w-by-h bitmap with ppb pixels-per-byte. */
4817
c68e7490e4cf Fixed a couple of bugs in the general and X11 shape code, and fixed a bug in testshape that was keeping it from recognizing surfaces without alpha. Thanks to Andreas's bit-bashing tip, X11 shaped windows now work entirely, AFAICT.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4815
diff changeset
60 void SDL_CalculateShapeBitmap(SDL_WindowShapeMode mode,SDL_Surface *shape,Uint8* bitmap,Uint8 ppb) {
4787
e25ad8d97027 Ported over, to the best of my ability, the code for Win32 shaped windows and patched in the correct C syntax and coding conventions of SDL.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4786
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61 int x = 0;
e25ad8d97027 Ported over, to the best of my ability, the code for Win32 shaped windows and patched in the correct C syntax and coding conventions of SDL.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4786
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62 int y = 0;
4795
6f0bc179771c Numerous bug fixes that keep testeyes from crashing and dying.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4789
diff changeset
63 Uint8 r = 0,g = 0,b = 0,alpha = 0;
4802
f14a8c05f5bb Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4801
diff changeset
64 Uint8* pixel = NULL;
4817
c68e7490e4cf Fixed a couple of bugs in the general and X11 shape code, and fixed a bug in testshape that was keeping it from recognizing surfaces without alpha. Thanks to Andreas's bit-bashing tip, X11 shaped windows now work entirely, AFAICT.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4815
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65 Uint32 bitmap_pixel,pixel_value = 0,mask_value = 0;
4807
c9eb95f29770 Added color-key mode and redid the code to work with it.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4806
diff changeset
66 SDL_Color key;
4782
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4781
diff changeset
67 if(SDL_MUSTLOCK(shape))
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4781
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68 SDL_LockSurface(shape);
4799
a0e096916474 Rewrote test program for shaped windows. It definitely displays recognizable pictures now, but the resizing and shaping functionality isn't behaving correctly, possibly due to a miscalculation of alpha values.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4796
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69 pixel = (Uint8*)shape->pixels;
a0e096916474 Rewrote test program for shaped windows. It definitely displays recognizable pictures now, but the resizing and shaping functionality isn't behaving correctly, possibly due to a miscalculation of alpha values.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4796
diff changeset
70 for(y = 0;y<shape->h;y++) {
a0e096916474 Rewrote test program for shaped windows. It definitely displays recognizable pictures now, but the resizing and shaping functionality isn't behaving correctly, possibly due to a miscalculation of alpha values.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4796
diff changeset
71 for(x=0;x<shape->w;x++) {
4787
e25ad8d97027 Ported over, to the best of my ability, the code for Win32 shaped windows and patched in the correct C syntax and coding conventions of SDL.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4786
diff changeset
72 alpha = 0;
4802
f14a8c05f5bb Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4801
diff changeset
73 pixel_value = 0;
4806
007567dbb8c1 Reapplied Win32 make-it-build patch. What's going on? Still get rendering artifacts when testing on x11, have literally no idea why.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4802
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74 pixel = (Uint8 *)(shape->pixels) + (y*shape->pitch) + (x*shape->format->BytesPerPixel);
4802
f14a8c05f5bb Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4801
diff changeset
75 switch(shape->format->BytesPerPixel) {
f14a8c05f5bb Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4801
diff changeset
76 case(1):
f14a8c05f5bb Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4801
diff changeset
77 pixel_value = *(Uint8*)pixel;
f14a8c05f5bb Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4801
diff changeset
78 break;
f14a8c05f5bb Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4801
diff changeset
79 case(2):
f14a8c05f5bb Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4801
diff changeset
80 pixel_value = *(Uint16*)pixel;
f14a8c05f5bb Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4801
diff changeset
81 break;
4817
c68e7490e4cf Fixed a couple of bugs in the general and X11 shape code, and fixed a bug in testshape that was keeping it from recognizing surfaces without alpha. Thanks to Andreas's bit-bashing tip, X11 shaped windows now work entirely, AFAICT.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4815
diff changeset
82 case(3):
c68e7490e4cf Fixed a couple of bugs in the general and X11 shape code, and fixed a bug in testshape that was keeping it from recognizing surfaces without alpha. Thanks to Andreas's bit-bashing tip, X11 shaped windows now work entirely, AFAICT.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4815
diff changeset
83 pixel_value = *(Uint32*)pixel & (~shape->format->Amask);
c68e7490e4cf Fixed a couple of bugs in the general and X11 shape code, and fixed a bug in testshape that was keeping it from recognizing surfaces without alpha. Thanks to Andreas's bit-bashing tip, X11 shaped windows now work entirely, AFAICT.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4815
diff changeset
84 break;
4802
f14a8c05f5bb Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4801
diff changeset
85 case(4):
f14a8c05f5bb Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4801
diff changeset
86 pixel_value = *(Uint32*)pixel;
f14a8c05f5bb Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4801
diff changeset
87 break;
f14a8c05f5bb Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4801
diff changeset
88 }
f14a8c05f5bb Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4801
diff changeset
89 SDL_GetRGBA(pixel_value,shape->format,&r,&g,&b,&alpha);
4796
e8caf178d082 Added in Visual Studio patch.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4795
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90 bitmap_pixel = y*shape->w + x;
4807
c9eb95f29770 Added color-key mode and redid the code to work with it.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4806
diff changeset
91 switch(mode.mode) {
c9eb95f29770 Added color-key mode and redid the code to work with it.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4806
diff changeset
92 case(ShapeModeDefault):
4817
c68e7490e4cf Fixed a couple of bugs in the general and X11 shape code, and fixed a bug in testshape that was keeping it from recognizing surfaces without alpha. Thanks to Andreas's bit-bashing tip, X11 shaped windows now work entirely, AFAICT.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4815
diff changeset
93 mask_value = (alpha >= 1 ? 1 : 0);
4807
c9eb95f29770 Added color-key mode and redid the code to work with it.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4806
diff changeset
94 break;
c9eb95f29770 Added color-key mode and redid the code to work with it.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4806
diff changeset
95 case(ShapeModeBinarizeAlpha):
4817
c68e7490e4cf Fixed a couple of bugs in the general and X11 shape code, and fixed a bug in testshape that was keeping it from recognizing surfaces without alpha. Thanks to Andreas's bit-bashing tip, X11 shaped windows now work entirely, AFAICT.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4815
diff changeset
96 mask_value = (alpha >= mode.parameters.binarizationCutoff ? 1 : 0);
4807
c9eb95f29770 Added color-key mode and redid the code to work with it.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4806
diff changeset
97 break;
c9eb95f29770 Added color-key mode and redid the code to work with it.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4806
diff changeset
98 case(ShapeModeReverseBinarizeAlpha):
4817
c68e7490e4cf Fixed a couple of bugs in the general and X11 shape code, and fixed a bug in testshape that was keeping it from recognizing surfaces without alpha. Thanks to Andreas's bit-bashing tip, X11 shaped windows now work entirely, AFAICT.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4815
diff changeset
99 mask_value = (alpha <= mode.parameters.binarizationCutoff ? 1 : 0);
4807
c9eb95f29770 Added color-key mode and redid the code to work with it.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4806
diff changeset
100 break;
c9eb95f29770 Added color-key mode and redid the code to work with it.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4806
diff changeset
101 case(ShapeModeColorKey):
c9eb95f29770 Added color-key mode and redid the code to work with it.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4806
diff changeset
102 key = mode.parameters.colorKey;
4817
c68e7490e4cf Fixed a couple of bugs in the general and X11 shape code, and fixed a bug in testshape that was keeping it from recognizing surfaces without alpha. Thanks to Andreas's bit-bashing tip, X11 shaped windows now work entirely, AFAICT.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4815
diff changeset
103 mask_value = ((key.r != r && key.g != g && key.b != b) ? 1 : 0);
4807
c9eb95f29770 Added color-key mode and redid the code to work with it.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4806
diff changeset
104 break;
c9eb95f29770 Added color-key mode and redid the code to work with it.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4806
diff changeset
105 }
4817
c68e7490e4cf Fixed a couple of bugs in the general and X11 shape code, and fixed a bug in testshape that was keeping it from recognizing surfaces without alpha. Thanks to Andreas's bit-bashing tip, X11 shaped windows now work entirely, AFAICT.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4815
diff changeset
106 bitmap[bitmap_pixel / ppb] |= mask_value << (7 - ((ppb - 1) - (bitmap_pixel % ppb)));
4782
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4781
diff changeset
107 }
4799
a0e096916474 Rewrote test program for shaped windows. It definitely displays recognizable pictures now, but the resizing and shaping functionality isn't behaving correctly, possibly due to a miscalculation of alpha values.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4796
diff changeset
108 }
4782
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4781
diff changeset
109 if(SDL_MUSTLOCK(shape))
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
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diff changeset
110 SDL_UnlockSurface(shape);
4766
7b50faf23907 Moved SDL_shape.h, and building out the API as needed by SDL_Eyes.
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parents: 4765
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111 }
7b50faf23907 Moved SDL_shape.h, and building out the API as needed by SDL_Eyes.
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parents: 4765
diff changeset
112
4813
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parents: 4810
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113 SDL_ShapeTree* RecursivelyCalculateShapeTree(SDL_WindowShapeMode mode,SDL_Surface* mask,SDL_bool invert,SDL_Rect dimensions) {
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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parents: 4810
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114 int x = 0,y = 0;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
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115 Uint8* pixel = NULL;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
116 Uint32 pixel_value = 0;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
117 Uint8 r = 0,g = 0,b = 0,a = 0;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
118 SDL_bool pixel_transparent = SDL_FALSE;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
119 int last_transparent = -1;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
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120 SDL_Color key;
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93402b9dd20c Added Andreas's patch to fix my silly C++-style errors.
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parents: 4813
diff changeset
121 SDL_ShapeTree* result = (SDL_ShapeTree*)SDL_malloc(sizeof(SDL_ShapeTree));
4813
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parents: 4810
diff changeset
122 SDL_Rect next = {0,0,0,0};
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
123 for(y=dimensions.y;y<dimensions.h;y++)
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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parents: 4810
diff changeset
124 for(x=dimensions.x;x<dimensions.w;x++) {
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
125 pixel_value = 0;
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parents: 4810
diff changeset
126 pixel = (Uint8 *)(mask->pixels) + (y*mask->pitch) + (x*mask->format->BytesPerPixel);
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parents: 4810
diff changeset
127 switch(mask->format->BytesPerPixel) {
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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128 case(1):
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129 pixel_value = *(Uint8*)pixel;
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parents: 4810
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130 break;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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parents: 4810
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131 case(2):
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132 pixel_value = *(Uint16*)pixel;
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Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
133 break;
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egottlieb
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134 case(3):
55f32099a4b5 Worked on Windows implementation and the quad-trees.
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135 pixel_value = *(Uint32*)pixel & (~mask->format->Amask);
55f32099a4b5 Worked on Windows implementation and the quad-trees.
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diff changeset
136 break;
4813
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137 case(4):
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Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
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138 pixel_value = *(Uint32*)pixel;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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parents: 4810
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139 break;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
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140 }
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
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141 SDL_GetRGBA(pixel_value,mask->format,&r,&g,&b,&a);
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
142 switch(mode.mode) {
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
143 case(ShapeModeDefault):
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93402b9dd20c Added Andreas's patch to fix my silly C++-style errors.
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parents: 4813
diff changeset
144 pixel_transparent = (SDL_bool)(a >= 1 ? !invert : invert);
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parents: 4810
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145 break;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
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146 case(ShapeModeBinarizeAlpha):
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147 pixel_transparent = (SDL_bool)(a >= mode.parameters.binarizationCutoff ? !invert : invert);
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148 break;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
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149 case(ShapeModeReverseBinarizeAlpha):
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parents: 4813
diff changeset
150 pixel_transparent = (SDL_bool)(a <= mode.parameters.binarizationCutoff ? !invert : invert);
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151 break;
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152 case(ShapeModeColorKey):
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153 key = mode.parameters.colorKey;
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154 pixel_transparent = (SDL_bool)((key.r == r && key.g == g && key.b == b) ? !invert : invert);
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parents: 4810
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155 break;
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parents: 4810
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156 }
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parents: 4810
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157 if(last_transparent == -1) {
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158 last_transparent = pixel_transparent;
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parents: 4810
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159 break;
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parents: 4810
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160 }
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161 if(last_transparent != pixel_transparent) {
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162 result->kind = QuadShape;
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163 //These will stay the same.
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parents: 4810
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164 next.w = dimensions.w / 2;
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165 next.h = dimensions.h / 2;
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parents: 4810
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166 //These will change from recursion to recursion.
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parents: 4810
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167 next.x = dimensions.x;
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168 next.y = dimensions.y;
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diff changeset
169 result->data.children.upleft = (struct SDL_ShapeTree *)RecursivelyCalculateShapeTree(mode,mask,invert,next);
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parents: 4810
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170 next.x = dimensions.w / 2 + 1;
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parents: 4810
diff changeset
171 //Unneeded: next.y = dimensions.y;
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diff changeset
172 result->data.children.upright = (struct SDL_ShapeTree *)RecursivelyCalculateShapeTree(mode,mask,invert,next);
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parents: 4810
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173 next.x = dimensions.x;
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Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
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174 next.y = dimensions.h / 2 + 1;
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parents: 4813
diff changeset
175 result->data.children.downleft = (struct SDL_ShapeTree *)RecursivelyCalculateShapeTree(mode,mask,invert,next);
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parents: 4810
diff changeset
176 next.x = dimensions.w / 2 + 1;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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parents: 4810
diff changeset
177 //Unneeded: next.y = dimensions.h / 2 + 1;
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diff changeset
178 result->data.children.downright = (struct SDL_ShapeTree *)RecursivelyCalculateShapeTree(mode,mask,invert,next);
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parents: 4810
diff changeset
179 return result;
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parents: 4810
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180 }
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parents: 4810
diff changeset
181 }
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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parents: 4810
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182 //If we never recursed, all the pixels in this quadrant have the same "value".
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diff changeset
183 result->kind = (last_transparent == SDL_FALSE ? OpaqueShape : TransparentShape);
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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diff changeset
184 result->data.shape = dimensions;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
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185 return result;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
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186 }
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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diff changeset
187
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parents: 4810
diff changeset
188 SDL_ShapeTree* SDL_CalculateShapeTree(SDL_WindowShapeMode mode,SDL_Surface* shape,SDL_bool invert) {
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
189 SDL_Rect dimensions = {0,0,shape->w,shape->h};
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
190 SDL_ShapeTree* result = NULL;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
191 if(SDL_MUSTLOCK(shape))
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
192 SDL_LockSurface(shape);
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
193 result = RecursivelyCalculateShapeTree(mode,shape,invert,dimensions);
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
194 if(SDL_MUSTLOCK(shape))
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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parents: 4810
diff changeset
195 SDL_UnlockSurface(shape);
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
196 return result;
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
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197 }
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4810
diff changeset
198
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3dfe779900f5 Compiling for cocoa now works. Does it run? We'll see.
egottlieb
parents: 4827
diff changeset
199 void SDL_TraverseShapeTree(SDL_ShapeTree *tree,SDL_TraversalFunction function,void* closure) {
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200 if(tree->kind == QuadShape) {
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201 SDL_TraverseShapeTree((SDL_ShapeTree *)tree->data.children.upleft,function,closure);
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202 SDL_TraverseShapeTree((SDL_ShapeTree *)tree->data.children.upright,function,closure);
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203 SDL_TraverseShapeTree((SDL_ShapeTree *)tree->data.children.downleft,function,closure);
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204 SDL_TraverseShapeTree((SDL_ShapeTree *)tree->data.children.downright,function,closure);
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205 }
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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206 else
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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207 function(tree,closure);
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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208 }
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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209
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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210 void SDL_FreeShapeTree(SDL_ShapeTree** shapeTree) {
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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211 if((*shapeTree)->kind == QuadShape) {
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212 SDL_FreeShapeTree((SDL_ShapeTree **)&(*shapeTree)->data.children.upleft);
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213 SDL_FreeShapeTree((SDL_ShapeTree **)&(*shapeTree)->data.children.upright);
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214 SDL_FreeShapeTree((SDL_ShapeTree **)&(*shapeTree)->data.children.downleft);
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215 SDL_FreeShapeTree((SDL_ShapeTree **)&(*shapeTree)->data.children.downright);
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216 }
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217 SDL_free(*shapeTree);
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218 *shapeTree = NULL;
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219 }
5b4c7d7d8953 Wrote out the system for breaking shape-masks into quad-trees of rectangles, and added code to conglomerate those quad-trees of rectangles into regions for setting shapes under Win32.
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220
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221 int SDL_SetWindowShape(SDL_Window *window,SDL_Surface *shape,SDL_WindowShapeMode *shapeMode) {
4787
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222 int result;
4786
175da36d1342 Fixed up shape files as best I can.
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223 if(window == NULL || !SDL_IsShapedWindow(window))
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224 //The window given was not a shapeable window.
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225 return SDL_NONSHAPEABLE_WINDOW;
4780
4f915a47b995 Replaced the model of treating a window's shape as a render target with treating a window's shape as a surface passed into an SDL_SetWindowShape() function. I'll send this off to Andreas and Sam and start coding.
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226 if(shape == NULL)
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227 //Invalid shape argument.
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228 return SDL_INVALID_SHAPE_ARGUMENT;
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229
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230 if(shapeMode != NULL)
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diff changeset
231 window->shaper->mode = *shapeMode;
4802
f14a8c05f5bb Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
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parents: 4801
diff changeset
232 //TODO: Platform-specific implementations of SetWindowShape. X11 is finished. Win32 is finished. Debugging is in progress on both.
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diff changeset
233 result = window->display->device->shape_driver.SetWindowShape(window->shaper,shape,shapeMode);
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Eli Gottlieb <eligottlieb@gmail.com>
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234 window->shaper->hasshape = SDL_TRUE;
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diff changeset
235 if((window->shaper->usershownflag & SDL_WINDOW_SHOWN) == SDL_WINDOW_SHOWN) {
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236 SDL_ShowWindow(window);
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237 window->shaper->usershownflag &= !SDL_WINDOW_SHOWN;
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238 }
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
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239 return result;
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240 }
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
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241
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diff changeset
242 SDL_bool SDL_WindowHasAShape(SDL_Window *window) {
4787
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parents: 4786
diff changeset
243 if (window == NULL && !SDL_IsShapedWindow(window))
e25ad8d97027 Ported over, to the best of my ability, the code for Win32 shaped windows and patched in the correct C syntax and coding conventions of SDL.
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244 return SDL_FALSE;
4782
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245 return window->shaper->hasshape;
4778
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246 }
9838d3525a1b Stubbed out the new get/set parameter functions, added the start of the enum, union, and struct for those parameters themselves, and added doxygen comments throughout the SDL_shape.h header.
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247
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diff changeset
248 int SDL_GetShapedWindowMode(SDL_Window *window,SDL_WindowShapeMode *shapeMode) {
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249 if(window != NULL && SDL_IsShapedWindow(window)) {
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250 if(shapeMode == NULL) {
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
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251 if(SDL_WindowHasAShape(window))
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diff changeset
252 //The window given has a shape.
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253 return 0;
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254 else
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
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255 //The window given is shapeable but lacks a shape.
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parents: 4799
diff changeset
256 return SDL_WINDOW_LACKS_SHAPE;
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257 }
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Eli Gottlieb <eligottlieb@gmail.com>
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258 else {
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diff changeset
259 *shapeMode = window->shaper->mode;
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260 return 0;
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261 }
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
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262 }
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
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263 else
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
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264 //The window given is not a valid shapeable window.
4801
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parents: 4799
diff changeset
265 return SDL_NONSHAPEABLE_WINDOW;
4778
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Eli Gottlieb <eligottlieb@gmail.com>
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266 }