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annotate Renderer/Engine/viewer_types.h @ 981:a193a851b5e3

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add double buffering frame device
author root@henri.cr.ie.u-ryukyu.ac.jp
date Thu, 30 Sep 2010 23:54:08 +0900
parents 655e11f6e437
children
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1 #ifndef INCLUDED_VIEWER_TYPES
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2 #define INCLUDED_VIEWER_TYPES
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3
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4 // texture は 8x8 に分割
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5 // この値は、SpanPack にも使う
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6 const int TEXTURE_SPLIT_PIXEL = 8;
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7 const int TEXTURE_BLOCK_SIZE = TEXTURE_SPLIT_PIXEL*TEXTURE_SPLIT_PIXEL;
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8
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9 // 一個の SPE が描画担当する width, height (pixel)
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10 const int split_screen_w = 256;
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11 const int split_screen_h = 8;
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12
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13 enum video_type {
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14 VTYPE_SDL,
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15 VTYPE_FB,
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16 VTYPE_PS3,
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17 VTYPE_GL
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18 };
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19
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20 #if defined(__LITTLE_ENDIAN__)
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21 const int redMask = 0x0000ff00;
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22 const int greenMask = 0x00ff0000;
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23 const int blueMask = 0xff000000;
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24 const int alphaMask = 0x000000ff;
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25 #else
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26 const int redMask = 0x00ff0000;
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27 const int greenMask = 0x0000ff00;
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28 const int blueMask = 0x000000ff;
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29 const int alphaMask = 0xff000000;
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30 #endif
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31
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32 static inline int
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33 getLocalPosition(int d, int offset)
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34 {
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35 /**
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36 * offset が 2 の冪乗の時だけ使える。
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37 * 現在は offset は 2 の冪乗のみなので
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38 * これで問題ないけどどうなの？
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39 */
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40 return d & (offset-1);
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41
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42 // offset が 2 の冪乗以外はこれにしないとだめ
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43 //return d % offset;
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44 }
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45
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46 /**
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47 * ワールド座標における x の値を
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48 * split_screen_w で分割した領域(1 〜 split_screen_w)での座標に変換する
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49 * (ex. split_screen_w が 256 の場合、
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50 * x = 1 -> 1
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51 * x = 256 -> 256
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52 * x = 257 -> 1
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53 */
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54 static inline int
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55 getLocalX(int x)
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56 {
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57 return getLocalPosition(x, split_screen_w);
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58 }
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59
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60 /**
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61 * getLocalX に同じ
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62 */
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63 static inline int
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64 getLocalY(int y)
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65 {
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66 return getLocalPosition(y, split_screen_h);
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67 }
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68
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69 #endif