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  3. <title>áèáëèîòåêà äëÿ ðàáîòû ñ 2d áóôåðàìè</title>
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  48.  
  49. <h1>Îãëàâëåíèå</h1>
  50. <ul>
  51. <li>Âñòóïëåíèå</li>
  52. <li><a href="#format_buf">Ôîðìàòû áóôåðîâ</a></li>
  53. <li><a href="#fun">Ôóíêöèè</a><br>
  54. <ul>
  55. <li><a href="#f_init">lib_init</a></li>
  56. <li><a href="#f_b_create">buf2d_create</a></li>
  57. <li><a href="#f_v_brush_c">buf2d_vox_brush_create</a></li>
  58. </ul>
  59. </li>
  60. <li><a href="#const">Êîíñòàíòû</a></li>
  61. <li><a href="#tabl_e">Òàáëèöà ýêñïîðòà</a></li>
  62. <li><a href="#hist">Èñòîðèÿ</a></li>
  63. </ul>
  64.  
  65. <h1>Âñòóïëåíèå</h1>
  66. <p>Äîêóìåíòàöèÿ ê ñâîáîäíîé áèáëèîòåêå <b>buf2d.asm</b>, äëÿ <b>ÎÑ Êîëèáðè</b>.
  67.  Ýòà áèáëèîòåêà ñîçäàíà äëÿ ðàáîòû ñ 2d èçîáðàæåíèÿìè.
  68.  Ñ åå ïîìîùüþ ìîæíî ñîçäàâàòü áóôåðà ñ èçîáðàæåíèÿìè â ïàìÿòè, è ïðè íåîáõîäèìîñòè âûâîäèòü èõ íà ýêðàí.
  69.  Èçîáðàæåíèÿ ìîæíî íàêëàäûâàòü îäíî íà äðóãîå, ïîääåðæèâàåòñÿ ðàáîòà ñ ïðîçðà÷íûìè èçîáðàæåíèÿìè.
  70.  Åñòü ôóíêöèè ðèñîâàíèÿ ëèíèé, êðèâûõ Áåçüå, ïðÿìîóãîëüíèêîâ, îêðóæíîñòåé.
  71.  Òàêæå åñòü ôóíêöèè äëÿ ðèñîâàíèé âîêñåëüíîé ãðàôèêè.</p>
  72.  
  73. <p>Ïîñëåäíåå îáíîâëåíèå áèáëèîòåêè 12.06.12.</p>
  74.  
  75. <h1><a name="format_buf">Ôîðìàòû áóôåðîâ</a></h1>
  76. <p>Ïîääåðæèâàåòñÿ 3 ôîðìàòà áóôåðîâ.
  77.  Êàæäàÿ ôóíêöèÿ ïðè ðàáîòå ñ áóôåðàìè ìîæåò áûòü ðàñ÷èòàíà íà ðàáîòó ñ îïðåäåëåííûìè ôîðìàòàìè èçîáðàæåíèé.</p>
  78.  
  79. <h4>8 áèò</h4>
  80. <p>Ñîæåðæèò àëüôà êàíàë <b>a</b> (ïðîçðà÷íîñòü) èçîáðàæåíèÿ. Íà ýêðàí íå âûâîäèòñÿ. Èñïîëüçóåòñÿ äëÿ ñîçäàíÿ 32-áèòíûõ áóôåðîâ.</p>
  81. <h4>24 áèò</h4>
  82. <p>Äàííûé áóôåð ñîäåðæèò èçîáðàæåíèå â ôîðìàòå <b>rgb</b>. Ìîæåò âûâîäèòñÿ íà ýêðàí.</p>
  83. <h4>32 áèò</h4>
  84. <p>Ñîäåðæèò ïðîçðà÷íîå èçîáðàæåíèå â ôîðìàòå <b>rgba</b>. Íà ýêðàí íå âûâîäèòñÿ. Èñïîëüçóåòñÿ äëÿ íàëîæåíèÿ èçîáðàæåíèé.</p>
  85.  
  86. <h1><a name="fun">Ôóíêöèè</a></h1>
  87.  
  88. <p>Ïî÷òè âñå ôóíêöèè 1-ì ïàðàìåòðîì ïðèíèìàþò óêàçàòåëü íà ñòðóêòóðó áóôåðà,
  89.  èç êîòîðîé ìîãóò èñïîëüçîâàòüñÿ ïàðàìåòðû, íóæíûå äëÿ ðàáîòû êîíêðåòíîé ôóíêöèè.
  90.  Ïðèìåð ñòðóêòóðû áóôåðà èçîáðàæåíèÿ:</p>
  91. <pre>align 4
  92. buf_0:
  93.         dd    0 ;+ 0 óêàçàòåëü íà áóôåð èçîáðàæåíèÿ
  94.         dw  100 ;+ 4 îòñòóï ñëåâà
  95.         dw   10 ;+ 6 îòñòóï ñïðàâà
  96.         dd  150 ;+ 8 øèðèíà
  97.         dd  100 ;+12 âûñîòà
  98.         dd 0x80 ;+16 ôîíîâûé öâåò
  99.         db   24 ;+20 áèò íà ïèêñåëü</pre>
  100.  
  101. <h4><a name="f_init">lib_init</a></h4>
  102. <p>Ýòà ôóíêöèÿ ïîëó÷àåò óêàçàòåëè íà ôóíêöèè ðàáîòû ñ ïàìÿòüþ, âûçûâàòñÿ äîëæíà ïðè çàãðóçêå áèáëèîòåêè. Ìîæåòå èñïîëüçîâàòü ìàêðîñ <b>@use_library_mem</b>, äëÿ åå àâòîìàòè÷åñêîé íàñòðîéêè.</p>
  103.  
  104. <h4><a name="f_b_create">buf2d_create</a></h4>
  105. <p>Ñîçäàåò áóôåð è ÷èñòèò åãî ôîíîâûì öâåòîì. Ïðèìåð:</p>
  106. <pre>stdcall [buf2d_create], buf_0</pre>
  107. <p>ãäå buf_0 - ñòðóêòóðà áóôåðà.</p>
  108. <p>Ïàðàìåòðû äëÿ ñîçäàíèÿ áóôåðà áåðóòñÿ èç ñòðóêòóðû.</p>
  109.  
  110. <h4>buf2d_create_f_img</h4>
  111. <p>Ñîçäàåò áóôåð íà îñíîâå èçîáðàæåíèÿ â ôîðìàòå <b>rgb</b>.</p>
  112.  
  113. <h4>buf2d_clear</h4>
  114. <p>×èñòèò áóôåð óêàçàíûì öâåòîì. Ïðèìåð:</p>
  115. <pre>buf2d_color equ dword[edi+16] ;öâåò ôîíà áóôåðà
  116. mov edi,buf_0
  117. stdcall [buf2d_clear], edi, buf2d_color ;î÷èùàåì ýêðàí ôîíîâûì öâåòîì</pre>
  118. <p>ãäå buf_0 - ñòðóêòóðà áóôåðà.</p>
  119.  
  120. <h4>buf2d_draw</h4>
  121. <p>Ðèñóåò áóôåð íà ýêðàíå (ðàáîòàåò ÷åðåç ñèñòåìíóþ ô. 7). Ðèñóþòñÿ òîëüêî áóôåðà ñ ãëóáèíîé öâåòà 24 áèòà.</p>
  122.  
  123. <h4>buf2d_delete</h4>
  124. <p>Îñâîáîæäàåò ïàìÿòü çàíÿòóþ èçîáðàæåíèåì áóôåðà.</p>
  125.  
  126. <h4>buf2d_resize</h4>
  127. <p>Èçìåíÿåò ðàçìåðû áóôåðà. Ïîêà ïîääåðæèâàþòñÿ áóôåðà ñ ãëóáèíîé öâåòà 24 áèòà. Ïðèìåð:</p>
  128. <pre>stdcall [buf2d_resize], buf_0, 0,300 ;èçìåíÿåì âûñîòó áóôåðà</pre>
  129. <p>ãäå buf_0 - ñòðóêòóðà áóôåðà â êîòîðîì áóäåò ðèñîâàòüñÿ ëèíèÿ; 0 - íîâàÿ øèðèíà áóôåðà (0 îçíà÷àåò íå èçìåíÿòü ðàçìåð); 300 - íîâàÿ âûñîòà áóôåðà.</p>
  130.  
  131. <h4>buf2d_line</h4>
  132. <p>Ðèñóåò â áóôåðå ëèíèþ ñ çàäàííûì öâåòîì è êîîðäèíàòàìè. Ïðèìåð:</p>
  133. <pre>stdcall [buf2d_line], buf_0, 30,10, 110,70, 0xffff00 ;ðèñóåì ëèíèþ</pre>
  134. <p>ãäå buf_0 - ñòðóêòóðà áóôåðà â êîòîðîì áóäåò ðèñîâàòüñÿ ëèíèÿ; 30, 10, 110, 70 - êîîðäèíàòû ëèíèè; 0xffff00 - öâåò ëèíèè.</p>
  135. <p>Äëÿ ðèñîâàíèÿ ñãëàæåííîé ëèíèè èñïîëüçóéòå <b>buf2d_line_sm</b>.</p>
  136.  
  137. <h4>buf2d_line_sm</h4>
  138. <p>Ðèñóåò â áóôåðå ëèíèþ ïðèíèìàåò òàêèæå ïàðàìåòðû êàê è ôóíêöèÿ <b>buf2d_line</b>. Äàííàÿ ôóíêöèÿ ðèñóåò ñãëàæåííóþ ëèíèþ áîëåå êðàñèâóþ ÷åì <b>buf2d_line</b>, íî ðàáîòàåò ìåäëåííåå íå¸ çà ñ÷åò âû÷èñëåíèÿ ñìåøàííûõ öâåòîâ ôîíà è ñàìîé ëèíèè.</p>
  139.  
  140. <h4>buf2d_rect_by_size</h4>
  141. <p>Ðèñóåò ïðÿìîóãîëüíóþ ðàìêó, ïî äâóì êîîðäèíàòàì, 2-ÿ êîîðäèíàòà çàäàíà ïî ðàçìåðó. Åñëè ðàçìåðû îòðèöàòåëüíûå ðàìêà ðèñóåòñÿ â îáðàòíîì íàïðàâëåíèè.</p>
  142. <pre>stdcall [buf2d_rect_by_size], buf_0, 10,10,150,100, 0x8080</pre>
  143. <p>ãäå buf_0 - ñòðóêòóðà áóôåðà â êîòîðîì áóäåò ðèñîâàòüñÿ ïðÿìîóãîëüíèê; 10, 10 - êîîðäèíàòû ëåâîãî âåðõíåãî óãëà (ïðè îòðèöàòåëüíûõ ðàçìåðàõ êîîðäèíàòà ïðàâîãî íèæíåãî); 150, 100 - ðàçìåð ïðÿìîóãîëüíèêà; 0x8080 - öâåò ëèíèè.</p>
  144.  
  145. <h4>buf2d_filled_rect_by_size</h4>
  146. <p>Ðèñóåò çàêðàøåííûé ïðÿìîóãîëüíèê, ïî äâóì êîîðäèíàòàì, 2-ÿ êîîðäèíàòà çàäàíà ïî ðàçìåðó. Åñëè ðàçìåð çàäàòü 1*1, òî áóäåò íàðèñîâàíà òî÷êà ðàçìåðîì â 1 ïèêñåëü, ò.å. ðàçìåð ïðÿìîóãîëüíèêà â ïèêñåëÿõ áóäåò ðàâåí óêàçàííîìó. Åñëè ðàçìåðû îòðèöàòåëüíûå ïðÿìîóãîëüíèê ðèñóåòñÿ â îáðàòíîì íàïðàâëåíèè.</p>
  147. <pre>stdcall [buf2d_rect_by_size], buf_0, 10,10,150,100, 0x8080</pre>
  148. <p>ãäå buf_0 - ñòðóêòóðà áóôåðà â êîòîðîì áóäåò ðèñîâàòüñÿ ïðÿìîóãîëüíèê; 10, 10 - êîîðäèíàòû ëåâîãî âåðõíåãî óãëà (ïðè îòðèöàòåëüíûõ ðàçìåðàõ êîîðäèíàòà ïðàâîãî íèæíåãî); 150, 100 - ðàçìåð ïðÿìîóãîëüíèêà; 0x8080 - öâåò ïðÿìîóãîëèêà.</p>
  149.  
  150. <h4>buf2d_circle</h4>
  151. <p>Ðèñóåò â áóôåðå îêðóæíîñòü ñ çàäàííûì öâåòîì è ðàäèóñîì. Ïðèìåð:</p>
  152. <pre>stdcall [buf2d_circle], buf_0, 25, 70, 15, 0xff0000</pre>
  153. <p>ãäå buf_0 - ñòðóêòóðà áóôåðà â êîòîðîì áóäåò ðèñîâàòüñÿ îêðóæíîñòü; 25, 70 - êîîðäèíàòû öåíòðà; 15 - ðàäèóñ; 0xff0000 - öâåò.</p>
  154.  
  155. <h4>buf2d_img_hdiv2</h4>
  156. <p>Ñæèìàåò èçîáðàæåíèå â áóôåðå ïî âûñîòå â 2 ðàçà, ïðè ýòîì ðàçìåð ñàìîãî áóôåðà íå óìåíüøàåòñÿ.</p>
  157.  
  158. <h4>buf2d_img_wdiv2</h4>
  159. <p>Ñæèìàåò èçîáðàæåíèå â áóôåðå ïî øèðèíå â 2 ðàçà, ïðè ýòîì ðàçìåð ñàìîãî áóôåðà íå óìåíüøàåòñÿ.</p>
  160.  
  161. <h4>buf2d_conv_24_to_8</h4>
  162. <p>Ïðåîáðàçîâàíèå áóôåðà èç 24-áèòíîãî â 8-áèòíûé.
  163.  Ïðè ïðåîáðàçîâàíèè óêàçûâàåòñÿ êàêîé öâåò áåðàòü: 0-ñèíèé, 1-çåëåíûé, 2-êðàñíûé.
  164.  Îñòàëüíûå öâåòà ïðè ïðåîáðàçîâàíèè òåðÿþòñÿ.</p>
  165.  
  166. <h4>buf2d_conv_24_to_32</h4>
  167. <p>Ïðåîáðàçîâàíèå áóôåðà èç 24-áèòíîãî â 32-áèòíûé.
  168.  Ïðè ïðåîáðàçîâàíèè óêàçûâàåòñÿ òàêæå 8-áèòíûé áóôåð, êîòîðûé áóäåò èñïîëüçîâàí äëÿ ñîçäàíèÿ àëüôà êàíàëà. Ïðèìåð:</p>
  169. <pre>stdcall [buf2d_conv_24_to_32],buf_a,buf_b ;äåëàåì áóôåð rgba 32áèò</pre>
  170. <p>Äî âûïîëíåíèÿ ôóíêöèè áóôåð buf_a äîëæåí áûòü 24 áèòíûì, à áóôåð buf_b - 8 áèòíûì.
  171.  Ïîñëå âûïîëíåíèÿ ôóíêöèè áóôåð buf_a ñòàíåò 32 áèòíûì, áóôåð buf_b íå èçìåíèòñÿ.</p>
  172.  
  173. <h4>buf2d_bit_blt</h4>
  174. <p>Ðèñóåò â áóôåðå èçîáðàæåíèå èç äðóãîãî áóôåðà â óêàçàííûõ êîîðäèíàòàõ. Áóôåð â êîòîðîì ðèñóò (ïðèåìíèê) äîëæåí áûòü 24 áèòíûì, à òîò êîòîðûé ðèñóåòñÿ (èñòî÷íèê) 24 èëè 32 áèòíûì. Åñëè áóôåð èñòî÷íèê 32 áèòíûé, òî åãî ïðîçðà÷íîñòü ïðè ðèñîâàíèè íå ó÷èòûâàåòñÿ, äëÿ ó÷åòà ïðîçðà÷íîñòè èñïîëüçóåòñÿ ôóíêöèÿ <i>buf2d_bit_blt_transp</i>. Ïðèìåð:</p>
  175. <pre>stdcall [buf2d_bit_blt], buf_0, 50,30, buf_1 ;ïðîðèñîâêà ñðåäíåãî ñêèíà</pre>
  176. <p>ãäå buf_0 - ñòðóêòóðà áóôåðà â êîòîðîì áóäåò ðèñîâàòüñÿ èçîáðàæåíèå (ïðèåìíèê);
  177.   buf_1 - ñòðóêòóðà áóôåðà ñ ðèñóåìûì èçîáðàæåíèåì (èñòî÷íèê);
  178.   50,30 - êîîðäèíàòû äëÿ âûâîäà èçîáðàæåíèÿ, îïðåäåëÿþò ïîëîæåíèå ðèñóåìîé êàðòèíêè â buf_0.</p>
  179.  
  180. <h4>buf2d_bit_blt_transp</h4>
  181. <p>Ðèñóåò â áóôåðå èçîáðàæåíèå èç äðóãîãî áóôåðà â óêàçàííûõ êîîðäèíàòàõ, ïðè ýòîì ó÷èòûâàåòñÿ ïðîçðà÷íîñòü.
  182.  Áóôåð êîòîðûé áóäåò íàðèñîâàí äîëæåí áûòü 32 áèòíûì, à òîò â êîòîðîì ðèñóþò 24 áèòíûì.</p>
  183.  
  184. <h4>buf2d_bit_blt_alpha</h4>
  185. <p>Ðèñóåò â áóôåðå èçîáðàæåíèå èç äðóãîãî áóôåðà â óêàçàííûõ êîîðäèíàòàõ, ïðè ýòîì ó÷èòûâàåòñÿ ïðîçðà÷íîñòü.
  186.  Áóôåð êîòîðûé áóäåò íàðèñîâàí äîëæåí áûòü 8 áèòíûì, à òîò â êîòîðîì ðèñóþò 24 áèòíûì.</p>
  187.  
  188. <h4>buf2d_curve_bezier</h4>
  189. <p>Ðèñóåò ïî òðåì òî÷êàì îòðåçîê êðèâîé áåçüå.</p>
  190. <pre>stdcall [buf2d_curve_bezier], buf_0, (10 shl 16)+20,(110 shl 16)+10,(50 shl 16)+90, dword 0xff</pre>
  191. <p>ãäå buf_0 - ñòðóêòóðà áóôåðà â êîòîðîì áóäåò ðèñîâàòüñÿ êðèâàÿ;
  192.   (10 shl 16)+20,(110 shl 16)+10,(50 shl 16)+90 - êîîðäèíàòû òî÷åê (10,20), (110,10), (50,90);
  193.   0xff - öâåò ïðÿìîé.</p>
  194.  
  195. <h4>buf2d_convert_text_matrix</h4>
  196. <p>Ïðåîáðàçóåò ìàòðèöó ñ òåêñòîì ðàçìåðîì 16*16 â ðàçìåð 1*256. Íåîáõîäèìî äëÿ ñîçäàíèÿ ìàòðèöû äëÿ ðèñîâàíèÿ òåêñòà. Ïåðåä èñïîëüçîâàíèåì äàííîé ôóíêöèè ïðåäïîëàãàåòñÿ ÷òî åñòü èçîáðàæåíèå ñ ïîëíûì íàáîðîì ñèìâîëîâ ðàçìåðîì 16 ñòîëáöîâ íà 16 ñòðîê, èç êîòîðîãî ïðåäâàðèòåëüíî áûë ñîçäàí 8 áèòíûé áóôåð.</p>
  197. <pre>stdcall [buf2d_create_f_img], buf_1,[image_data] ;ñîçäàåì áóôåð 24 áèò íà îñíîâå äàííûõ èçîáðàæåíèÿ
  198. stdcall [buf2d_conv_24_to_8], buf_1,1 ;äåëàåì áóôåð ïðîçðà÷íîñòè 8 áèò
  199. stdcall [buf2d_convert_text_matrix], buf_1</pre>
  200. <p>ãäå buf_1 - ñòðóêòóðà áóôåðà äëÿ ôîðìèðîâàíèÿ òåêñòîâîé ìàòðèöû;
  201.   image_data - äàííûå èçîáðàæåíèÿ òåêñòîâîé ìàòðèöû â ôîðìàòå rgb, ðàçìåðîì 16*16 ñèìâîëîâ.</p>
  202.  
  203. <h4>buf2d_draw_text</h4>
  204. <p>Ðèñóåò òåêñò â áóôåðå, èñïîëüçóÿ ìàòðèöó ñ òåêñòîì ðàçìåðîì 1*256 ñèìâîëîâ. Ïðèìåð:</p>
  205. <pre>stdcall [buf2d_draw_text], buf_0, buf_1,some_text,20,10,0x4040ff ;ðèñóåì ñòðîêó ñ òåêñòîì</pre>
  206. <p>ãäå buf_0 - ñòðóêòóðà áóôåðà â êîòîðîì áóäåò ðèñîâàòüñÿ òåêñò;
  207.   buf_1 - ñòðóêòóðà áóôåðà ñ òåêñòîâîé ìàòðèöåé â ôîðìàòå 8 áèò, ðàçìåðîì 1*256 ñèìâîëîâ;
  208.   some_text - òåêñò, êîòîðûé áóäåò âûâåäåí â áóôåð buf_0.</p>
  209.  
  210. <h4>buf2d_crop_color</h4>
  211. <p>Îáðåçàíèå áóôåðà, ïî óêàçàííîìó öâåòó. Ôóíêöèÿ èñïîëüçóåòñÿ äëÿ óìåíüøåíèÿ ïàìÿòè, çàíèìàåìîé áóôåðîì. Îòðåçàþòñÿ êðàéíèå ÷àñòè áóôåðà èìåþùèå îäèíàêîâûé öâåò. Ïðèìåð:</p>
  212. <pre>stdcall [buf2d_crop_color], buf_0,0xffffff,BUF2D_OPT_CROP_TOP+BUF2D_OPT_CROP_BOTTOM</pre>
  213. <p>ãäå buf_0 - ñòðóêòóðà áóôåðà êîòîðûé áóäåò îáðåçàí;
  214.   0xffffff - öâåò ïî êîòîðîìó áóäåò îáðåçàòüñÿ áóôåð;
  215.   BUF2D_OPT_CROP_TOP è BUF2D_OPT_CROP_BOTTOM - êîíñòàíòû, óêàçûâàþùèå ñ êàêèõ ñòîðîí îáðåçàòü áóôåð.</p>
  216.  
  217. <h4>buf2d_offset_h</h4>
  218. <p>Ñäâèã èçîáðàæåíèÿ â áóôåðå ïî âûñîòå ââåðõ èëè âíèç.</p>
  219.  
  220. <h4>buf2d_flood_fill</h4>
  221. <p>Ôóíêöèÿ äëÿ ðåêóðñèâíîé çàëèâêè âûáðàííûì öâåòîì. Èìååòñÿ äâà âàðèàíòà çàëèâêè. Ïðèìåð:</p>
  222. <pre>stdcall [buf2d_flood_fill], buf_0, 100,200, 0, 0xff,0xff0000</pre>
  223. <p>ãäå buf_0 - ñòðóêòóðà áóôåðà;
  224.   100,200 - êîîðäèíàòû òî÷êè, ñ êîòîðîé íà÷íåòñÿ çàëèâêà;
  225.   0 - ïàðàìåòð, îïðåäåëÿåò àëãîðèòì çàëèâêè (ìîæåò áûòü 0 èëè 1);
  226.   0xff - öâåò çàëèâêè;</p>
  227.   0xff0000 - çàâèñèò îò çíà÷åíèÿ 4-ãî ïàðàìåòðà, 1) åñëè 0 - öâåò äî êîòîðîãî áóäåò çàëèâàòüñÿ îáëàñòü; 2) åñëè 1 - öâåò îáëàñòè êîòîðàÿ áóäåò çàëèâàòñÿ;</p>
  228.  
  229. <h4>buf2d_set_pixel</h4>
  230. <p>Ôóíêöèÿ ñòàâèò òî÷êó, ïðèíèìàåò êîîðäèíàòû è öâåò.</p>
  231. <pre>stdcall [buf2d_set_pixel], buf_0, 100,150, 0xff0000</pre>
  232. <p>ãäå buf_0 - ñòðóêòóðà áóôåðà;</p>
  233. <p>100,150 - êîîðäèíàòû òî÷êè;</p>
  234. <p>0xff0000 - öâåò òî÷êè.</p>
  235.  
  236. <h4>buf2d_get_pixel</h4>
  237. <p>Ôóíêöèÿ çàïèñûâàåò öâåò òî÷êè â ðåãèñòð eax, ïðèíèìàåò êîîðäèíàòû.</p>
  238. <pre>stdcall [buf2d_get_pixel], buf_0, 100,150</pre>
  239. <p>ãäå buf_0 - ñòðóêòóðà áóôåðà;</p>
  240. <p>100,150 - êîîðäèíàòû òî÷êè;</p>
  241. <p>eax - öâåò òî÷êè (äëÿ 8 è 24 áèòíûõ áóôåðîâ íå èñïîëüçóåìûå ñòàðøèå áèòû â eax ðàâíû 0) èëè çíà÷åíèå -1 â ñëó÷àå îøèáêè.</p>
  242.  
  243. <h4><a name="f_v_brush_c">buf2d_vox_brush_create</a></h4>
  244. <p>Ñîçäàíèå âîêñåëüíîé êèñòè.</p>
  245.  
  246. <h4>buf2d_vox_brush_delete</h4>
  247. <p>Óäàëåíèå âîêñåëüíîé êèñòè.</p>
  248.  
  249. <h4>buf2d_vox_obj_get_img_w_3g</h4>
  250. <p>Âîçâðàøàåò øèðèíó âîêñåëüíîãî èçîáðàæåíèÿ ñ 3-ìÿ ãðàíÿìè (êîòîðîå ðèñóåòñÿ ôóíêöèåé <b>buf2d_vox_obj_draw_3g</b>), ïðèíèìàåò óêàçàòåëü íà êèñòü è ìàñøòàá.</p>
  251.  
  252. <h4>buf2d_vox_obj_get_img_h_3g</h4>
  253. <p>Âîçâðàøàåò âûñîòó âîêñåëüíîãî èçîáðàæåíèÿ ñ 3-ìÿ ãðàíÿìè (êîòîðîå ðèñóåòñÿ ôóíêöèåé <b>buf2d_vox_obj_draw_3g</b>), ïðèíèìàåò óêàçàòåëü íà êèñòü è ìàñøòàá.</p>
  254.  
  255. <h4>buf2d_vox_obj_draw_3g</h4>
  256. <p>Ðèñîâàíèå âîêñåëüíîãî îáúåêòà ñ 3-ìÿ ãðàíÿìè.</p>
  257.  
  258. <h4>buf2d_vox_obj_draw_3g_scaled</h4>
  259. <p>Ðèñîâàíèå ÷àñòè âîêñåëüíîãî îáúåêòà.</p>
  260.  
  261. <h4>buf2d_vox_obj_draw_3g_shadows</h4>
  262. <p>Ôóíêöèÿ ðèñóþùàÿ òåíè äëÿ èçîáðàæåíèé íàðèñîâàííûõ ñ ïîìîùüþ ôóíêöèè <b>buf2d_vox_obj_draw_3g</b> èëè <b>buf2d_vox_obj_draw_3g_scaled</b>.</p>
  263.  
  264. <h4>buf2d_vox_obj_draw_pl</h4>
  265. <p>Ôóíêöèÿ ðèñóþùàÿ ñðåç âîêñåëüíîãî îáüåêòà.</p>
  266.  
  267. <h4>buf2d_vox_obj_draw_pl_scaled</h4>
  268. <p>Ôóíêöèÿ ðèñóþùàÿ ñðåç ÷àñòè âîêñåëüíîãî îáüåêòà.</p>
  269.  
  270. <h1><a name="const">Êîíñòàíòû</a></h1>
  271. <h4>BUF2D_OPT_CROP_TOP equ 1</h4>
  272. <p>Êîíñòàíòà äëÿ ôóíêöèè buf2d_crop_color, îáîçíà÷àåò îáðåçêó áóôåðà ñâåðõó</p>
  273. <h4>BUF2D_OPT_CROP_LEFT equ 2</h4>
  274. <p>Êîíñòàíòà äëÿ ôóíêöèè buf2d_crop_color, îáîçíà÷àåò îáðåçêó áóôåðà ñëåâà</p>
  275. <h4>BUF2D_OPT_CROP_BOTTOM equ 4</h4>
  276. <p>Êîíñòàíòà äëÿ ôóíêöèè buf2d_crop_color, îáîçíà÷àåò îáðåçêó áóôåðà ñíèçó</p>
  277. <h4>BUF2D_OPT_CROP_RIGHT equ 8</h4>
  278. <p>Êîíñòàíòà äëÿ ôóíêöèè buf2d_crop_color, îáîçíà÷àåò îáðåçêó áóôåðà ñïðàâà</p>
  279.  
  280. <h1><a name="tabl_e">Òàáëèöà ýêñïîðòà</a></h1>
  281. <p>Ïðèìåð òàáëèöû ýêñïîðòà, ðàñ÷èòàííîé íà èñïîëüçîâàíèå ìàêðîñà <b>@use_library_mem</b>:</p>
  282. <pre>align 4
  283. import_buf2d_lib:
  284.         dd sz_lib_init
  285.         buf2d_create dd sz_buf2d_create
  286.         buf2d_create_f_img dd sz_buf2d_create_f_img
  287.         buf2d_clear dd sz_buf2d_clear
  288.         buf2d_draw dd sz_buf2d_draw
  289.         buf2d_delete dd sz_buf2d_delete
  290.         buf2d_resize dd sz_buf2d_resize
  291.         buf2d_line dd sz_buf2d_line
  292.         buf2d_line_sm dd sz_buf2d_line_sm
  293.         buf2d_rect_by_size dd sz_buf2d_rect_by_size
  294.         buf2d_filled_rect_by_size dd sz_buf2d_filled_rect_by_size
  295.         buf2d_circle dd sz_buf2d_circle
  296.         buf2d_img_hdiv2 dd sz_buf2d_img_hdiv2
  297.         buf2d_img_wdiv2 dd sz_buf2d_img_wdiv2
  298.         buf2d_conv_24_to_8 dd sz_buf2d_conv_24_to_8
  299.         buf2d_conv_24_to_32 dd sz_buf2d_conv_24_to_32
  300.         buf2d_bit_blt dd sz_buf2d_bit_blt
  301.         buf2d_bit_blt_transp dd sz_buf2d_bit_blt_transp
  302.         buf2d_bit_blt_alpha dd sz_buf2d_bit_blt_alpha
  303.         buf2d_curve_bezier dd sz_buf2d_curve_bezier
  304.         buf2d_convert_text_matrix dd sz_buf2d_convert_text_matrix
  305.         buf2d_draw_text dd sz_buf2d_draw_text
  306.         buf2d_crop_color dd sz_buf2d_crop_color
  307.         buf2d_offset_h dd sz_buf2d_offset_h
  308.         buf2d_flood_fill dd sz_buf2d_flood_fill
  309.         buf2d_set_pixel dd sz_buf2d_set_pixel
  310.         buf2d_get_pixel dd sz_buf2d_get_pixel
  311.  
  312.         ;âîêñåëüíûå ôóíêöèè:
  313.         buf2d_vox_brush_create dd sz_buf2d_vox_brush_create
  314.         buf2d_vox_brush_delete dd sz_buf2d_vox_brush_delete
  315.         buf2d_vox_obj_get_img_w_3g dd sz_buf2d_vox_obj_get_img_w_3g
  316.         buf2d_vox_obj_get_img_h_3g dd sz_buf2d_vox_obj_get_img_h_3g
  317.         buf2d_vox_obj_draw_3g dd sz_buf2d_vox_obj_draw_3g
  318.         buf2d_vox_obj_draw_3g_scaled dd sz_buf2d_vox_obj_draw_3g_scaled
  319.         buf2d_vox_obj_draw_3g_shadows dd sz_buf2d_vox_obj_draw_3g_shadows
  320.         buf2d_vox_obj_draw_pl dd sz_buf2d_vox_obj_draw_pl
  321.         buf2d_vox_obj_draw_pl_scaled dd sz_buf2d_vox_obj_draw_pl_scaled
  322.  
  323.         dd 0,0
  324.         sz_lib_init db 'lib_init',0
  325.         sz_buf2d_create db 'buf2d_create',0
  326.         sz_buf2d_create_f_img db 'buf2d_create_f_img',0
  327.         sz_buf2d_clear db 'buf2d_clear',0
  328.         sz_buf2d_draw db 'buf2d_draw',0
  329.         sz_buf2d_delete db 'buf2d_delete',0
  330.         sz_buf2d_resize db 'buf2d_resize',0
  331.         sz_buf2d_line db 'buf2d_line',0
  332.         sz_buf2d_line_sm db 'buf2d_line_sm',0
  333.         sz_buf2d_rect_by_size db 'buf2d_rect_by_size',0
  334.         sz_buf2d_filled_rect_by_size db 'buf2d_filled_rect_by_size',0
  335.         sz_buf2d_circle db 'buf2d_circle',0
  336.         sz_buf2d_img_hdiv2 db 'buf2d_img_hdiv2',0
  337.         sz_buf2d_img_wdiv2 db 'buf2d_img_wdiv2',0
  338.         sz_buf2d_conv_24_to_8 db 'buf2d_conv_24_to_8',0
  339.         sz_buf2d_conv_24_to_32 db 'buf2d_conv_24_to_32',0
  340.         sz_buf2d_bit_blt db 'buf2d_bit_blt',0
  341.         sz_buf2d_bit_blt_transp db 'buf2d_bit_blt_transp',0
  342.         sz_buf2d_bit_blt_alpha db 'buf2d_bit_blt_alpha',0
  343.         sz_buf2d_curve_bezier db 'buf2d_curve_bezier',0
  344.         sz_buf2d_convert_text_matrix db 'buf2d_convert_text_matrix',0
  345.         sz_buf2d_draw_text db 'buf2d_draw_text',0
  346.         sz_buf2d_crop_color db 'buf2d_crop_color',0
  347.         sz_buf2d_offset_h db 'buf2d_offset_h',0
  348.         sz_buf2d_flood_fill db 'buf2d_flood_fill',0
  349.         sz_buf2d_set_pixel db 'buf2d_set_pixel',0
  350.         sz_buf2d_get_pixel db 'buf2d_get_pixel',0
  351.  
  352.         ;âîêñåëüíûå ôóíêöèè:
  353.         sz_buf2d_vox_brush_create db 'buf2d_vox_brush_create',0
  354.         sz_buf2d_vox_brush_delete db 'buf2d_vox_brush_delete',0
  355.         sz_buf2d_vox_obj_get_img_w_3g db 'buf2d_vox_obj_get_img_w_3g',0
  356.         sz_buf2d_vox_obj_get_img_h_3g db 'buf2d_vox_obj_get_img_h_3g',0
  357.         sz_buf2d_vox_obj_draw_3g db 'buf2d_vox_obj_draw_3g',0
  358.         sz_buf2d_vox_obj_draw_3g_scaled db 'buf2d_vox_obj_draw_3g_scaled',0
  359.         sz_buf2d_vox_obj_draw_3g_shadows db 'buf2d_vox_obj_draw_3g_shadows',0
  360.         sz_buf2d_vox_obj_draw_pl db 'buf2d_vox_obj_draw_pl',0
  361.         sz_buf2d_vox_obj_draw_pl_scaled db 'buf2d_vox_obj_draw_pl_scaled',0</pre>
  362.  
  363. <h1><a name="hist">Èñòîðèÿ</a></h1>
  364. <p>02.07.10 - ñàìàÿ ïåðâàÿ âåðñèÿ áèáëèîòåêè, 2 ïðèìåðà èñïîëüçîâàíèÿ.</p>
  365. <p>06.07.10 - ðàñøèðåíû âîçìîæíîñòè ôóíêöèè buf2d_bit_blt, òåïåðü îíà ìîæåò ðèñîâàòü 32 áèòíûå áóôåðû. Äîáàâëåíû 2 íîâûå ôóíêöèè: buf2d_bit_blt_alpha è buf2d_cruve_bezier. Íåáîëüøèå èçìåíåíèÿ â ôóíêöèè buf2d_line.</p>
  366. <p>16.07.10 - èñïðàâëåíî ïî 2 îøèáêè â ôóíêöèÿõ buf2d_img_hdiv2 è buf2d_img_wdiv2, êîòîðûå ìîãëè ïðîÿâëÿòüñÿ ïðè îïðåäåëåííûõ óñëîâèÿõ (åñëè ðàçìåð èçîáðàæåíèÿ áûë êðàòåí 4Êá è äð.). Äîáàâëåíû 2 ôóíêöèè äëÿ âûâîäà òåêñòà â áóôåð buf2d_convert_text_matrix è buf2d_draw_text.</p>
  367. <p>19.07.10 - äîáàâëåíà ôóíêöèÿ ðèñîâàíèÿ îêðóæíîñòè buf2d_circle;
  368.  èçìåíåí ôîðìàò áóôåðà - äëÿ øèðèíû è âûñîòû èñïîëüçóþòñÿ 4-õ áàéòíûå ÷èñëà âìåñòî 2-õ áàéòíûõ.</p>
  369. <p>29.07.10 - äîáàâëåíû ôóíêöèè buf2d_crop_color è buf2d_offset_h;
  370.  èñïðàâëåíèÿ â ôóíêöèè buf2d_delete.</p>
  371. <p>30.09.10 - äîáàâëåíà ôóíêöèÿ buf2d_rect_by_size.</p>
  372. <p>04.10.10 - äîáàâëåíà ôóíêöèÿ buf2d_filled_rect_by_size, äîðàáîòàíà ôóíêöèÿ buf_bit_blt_alpha.</p>
  373. <p>07.10.10 - äîðàáîòàíà ôóíêöèÿ buf_bit_blt (ïðè ïîïûòêå íàðèñîâàòü èçîáðàæåíèå çà ïðåäåëàìè ïðàâîãî êðàÿ áóôåðà ïðèëîæåíèå âûçâàâøåå ôóíêöèþ ïàäàëî).</p>
  374. <p>11.10.10 - èñïðàâëåíî çàäàíèå öâåòîâ â íåêîòîðûõ ôóíêöèÿõ, êðàñíûé è ñèíèé öâåòà ïîìåíÿë ìåñòàìè. Òåïåðü öâåòà ñîâïàäàþò ñ ñèñåìíûìè ôóíêöèÿìè.</p>
  375. <p>02.11.10 - äîáàâëåíà ôóíêöèÿ buf2d_flood_fill.</p>
  376. <p>22.12.10 - èçìåíåíî èìÿ ôóíêöèè buf2d_cruve_bezier íà buf2d_curve_bezier.</p>
  377. <p>25.03.11 - äîáàâëåíà ôóíêöèÿ äëÿ ðèñîâàíèÿ òî÷êè buf2d_set_pixel.</p>
  378. <p>30.08.11 - äîáàâëåíà ôóíêöèÿ èçìåíåíèÿ ðàçìåðîâ áóôåðà buf2d_resize.</p>
  379. <p>13.09.11 - îïòèìèçèðîâàíà ðàáîòà ôóíêöèé buf2d_filled_rect_by_size buf2d_rect_by_size, äîáàâëåíû ïðèìåðû èñïîëüçîâàíèÿ áèáëèîòåêè.</p>
  380. <p>22.09.11 - äîáàâëåíà ôóíêöèÿ buf2d_line_sm äëÿ ðèñîâàíèÿ ñãëàæåííîé ëèíèè.</p>
  381. <p>20.02.12 - ôóíêöèè buf2d_filled_rect_by_size è buf2d_rect_by_size ìîãóò ïðèíèìàòü îòðèöàòåëüíûå ðàçìåðû äëÿ ïðÿìîóãîëüíèêîâ, â ôóíêöèè buf2d_line ãîðèçîíòàëüíàÿ ëèíèÿ ðèñóåòñÿ íà 1 ïèêñåëü äëèíåå (ðàíüøå íå äîðèñîâûâàëî), íåêîòîðûå ôóíêöèè ìîãóò ðèñîâàòü â 8 áèòíûõ áóôåðàõ.</p>
  382. <p>23.02.12 - ôóíêöèÿ buf2d_bit_blt_alpha ìîæåò ïðèíèìàòü îòðèöàòåëüíûå êîîðäèíàòû â ïîçèöèè êîïèðóåìîãî áóôåðà, íåáîëüøèå äîðàáîòêè â buf2d_bit_blt_transp</p>
  383. <p>11.05.12 - äîáàâëåíà ôóíêöèÿ äëÿ âçÿòèÿ öâåòà òî÷êè buf2d_get_pixel, äîðàáîòêè â buf2d_set_pixel.</p>
  384. <p>12.06.12 - äîáàâëåíû ôóíêöèè äëÿ ðèñîâàíèÿ âîêñåëüíîé ãðàôèêè.</p>
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