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annotate src/video/SDL_blendrect.c @ 4467:0baef09fe702

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author Eric Wing <ewing . public |-at-| gmail . com> Wed May 12 12:49:28 2010 -0700 (5 days ago) Added the automated test plist file and modified .hgignore to be less aggressive. Discovered that the new plist file for the automated test was not checked in because the .hgignore file was too aggressive. I changed the .hgignore to not ignore the Xcode directory and instead added a longer list of things to ignore.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 17 May 2010 23:13:33 -0700
parents f7b03b6838cb
children aa8888658021
rev   line source
3594
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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1 /*
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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2 SDL - Simple DirectMedia Layer
3697
f7b03b6838cb Fixed bug #926
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3 Copyright (C) 1997-2010 Sam Lantinga
3594
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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4
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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5 This library is free software; you can redistribute it and/or
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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6 modify it under the terms of the GNU Lesser General Public
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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7 License as published by the Free Software Foundation; either
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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8 version 2.1 of the License, or (at your option) any later version.
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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9
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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10 This library is distributed in the hope that it will be useful,
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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13 Lesser General Public License for more details.
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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14
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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15 You should have received a copy of the GNU Lesser General Public
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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16 License along with this library; if not, write to the Free Software
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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18
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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19 Sam Lantinga
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #include "SDL_video.h"
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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25
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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26
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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27 int
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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28 SDL_BlendRect(SDL_Surface * dst, const SDL_Rect * rect,
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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29 int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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30 {
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31 SDL_Rect full_rect;
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32 SDL_Point points[5];
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33
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34 if (!dst) {
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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35 SDL_SetError("Passed NULL destination surface");
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36 return -1;
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37 }
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38
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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39 /* If 'rect' == NULL, then outline the whole surface */
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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40 if (!rect) {
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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41 full_rect.x = 0;
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42 full_rect.y = 0;
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
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43 full_rect.w = dst->w;
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44 full_rect.h = dst->h;
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45 rect = &full_rect;
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46 }
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47
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48 points[0].x = rect->x;
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49 points[0].y = rect->y;
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50 points[1].x = rect->x+rect->w-1;
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51 points[1].y = rect->y;
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52 points[2].x = rect->x+rect->w-1;
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53 points[2].y = rect->y+rect->h-1;
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54 points[3].x = rect->x;
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55 points[3].y = rect->y+rect->h-1;
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56 points[4].x = rect->x;
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57 points[4].y = rect->y;
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58 return SDL_BlendLines(dst, points, 5, blendMode, r, g, b, a);
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59 }
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60
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61 int
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62 SDL_BlendRects(SDL_Surface * dst, const SDL_Rect ** rects, int count,
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63 int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
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64 {
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65 int i;
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66
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67 for (i = 0; i < count; ++i) {
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68 if (SDL_BlendRect(dst, rects[i], blendMode, r, g, b, a) < 0) {
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69 return -1;
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70 }
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71 }
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72 return 0;
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73 }
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74
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75 /* vi: set ts=4 sw=4 expandtab: */