Mercurial > sdl-ios-xcode
annotate docs/html/sdlrect.html @ 821:30168104389f
Date: Sat, 14 Feb 2004 14:52:40 +0200
From: "Mike Gorchak"
Subject: Batch of the QNX6 fixes for the SDL
1. Updated readme.QNX
2. Fixed crashes during intensive window updating under fast machines (got over 200 rectangles for update).
3. Fixed double-buffered fullscreen modes, now it works as needed.
4. Fixed Photon detection algorithm.
5. Fixed HWSURFACE update function.
6. Added SDL_PHOTON_FULLSCREEN_REFRESH environment variable support for control refresh rates under Photon.
7. Added 640x400 fullscreen mode emulation via 640x480 (if videodriver not supports original 640x400 mode of course) shifted by 40 vertical pixels from begin, to center it. It's needed for some old DOS games which ran in doubled 320x200 mode.
8. Added available video ram amount support.
8. Added hardware surface allocation/deallocation support if current videomode and videodriver supports it.
9. Added hardware filling support.
10. Added hardware blits support (simple and colorkeyed).
And I've added to testvidinfo test color-keyed blits benchmark (maybe need to add alpha blits benchmark too ?). Currently Photon not supporting any alpha hardware blittings (all drivers lack of alpha blitting code support, only software alpha blitting exist in photon, which is hundreds times slowest than the SDL's one). So I've not added the alpha support. I suppose new QNX 6.3 will have the hardware alpha support, so when it will be done, I'll add alpha support.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 14 Feb 2004 20:22:21 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_Rect</TITLE | |
5 ><META | |
6 NAME="GENERATOR" | |
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ |
0 | 8 "><LINK |
9 REL="HOME" | |
10 TITLE="SDL Library Documentation" | |
11 HREF="index.html"><LINK | |
12 REL="UP" | |
13 TITLE="Video" | |
14 HREF="video.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_GLattr" | |
17 HREF="sdlglattr.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_Color" | |
20 HREF="sdlcolor.html"></HEAD | |
21 ><BODY | |
22 CLASS="REFENTRY" | |
23 BGCOLOR="#FFF8DC" | |
24 TEXT="#000000" | |
25 LINK="#0000ee" | |
26 VLINK="#551a8b" | |
27 ALINK="#ff0000" | |
28 ><DIV | |
29 CLASS="NAVHEADER" | |
30 ><TABLE | |
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31 SUMMARY="Header navigation table" |
0 | 32 WIDTH="100%" |
33 BORDER="0" | |
34 CELLPADDING="0" | |
35 CELLSPACING="0" | |
36 ><TR | |
37 ><TH | |
38 COLSPAN="3" | |
39 ALIGN="center" | |
40 >SDL Library Documentation</TH | |
41 ></TR | |
42 ><TR | |
43 ><TD | |
44 WIDTH="10%" | |
45 ALIGN="left" | |
46 VALIGN="bottom" | |
47 ><A | |
48 HREF="sdlglattr.html" | |
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49 ACCESSKEY="P" |
0 | 50 >Prev</A |
51 ></TD | |
52 ><TD | |
53 WIDTH="80%" | |
54 ALIGN="center" | |
55 VALIGN="bottom" | |
56 ></TD | |
57 ><TD | |
58 WIDTH="10%" | |
59 ALIGN="right" | |
60 VALIGN="bottom" | |
61 ><A | |
62 HREF="sdlcolor.html" | |
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63 ACCESSKEY="N" |
0 | 64 >Next</A |
65 ></TD | |
66 ></TR | |
67 ></TABLE | |
68 ><HR | |
69 ALIGN="LEFT" | |
70 WIDTH="100%"></DIV | |
71 ><H1 | |
72 ><A | |
73 NAME="SDLRECT" | |
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74 ></A |
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75 >SDL_Rect</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN3046" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_Rect -- Defines a rectangular area</DIV | |
84 ><DIV | |
85 CLASS="REFSECT1" | |
86 ><A | |
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87 NAME="AEN3049" |
0 | 88 ></A |
89 ><H2 | |
90 >Structure Definition</H2 | |
91 ><PRE | |
92 CLASS="PROGRAMLISTING" | |
93 >typedef struct{ | |
94 Sint16 x, y; | |
95 Uint16 w, h; | |
96 } SDL_Rect;</PRE | |
97 ></DIV | |
98 ><DIV | |
99 CLASS="REFSECT1" | |
100 ><A | |
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101 NAME="AEN3052" |
0 | 102 ></A |
103 ><H2 | |
104 >Structure Data</H2 | |
105 ><DIV | |
106 CLASS="INFORMALTABLE" | |
107 ><A | |
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108 NAME="AEN3054" |
0 | 109 ></A |
110 ><P | |
111 ></P | |
112 ><TABLE | |
113 BORDER="0" | |
114 CLASS="CALSTABLE" | |
115 ><TBODY | |
116 ><TR | |
117 ><TD | |
118 ALIGN="LEFT" | |
119 VALIGN="TOP" | |
120 ><TT | |
121 CLASS="STRUCTFIELD" | |
122 ><I | |
123 >x, y</I | |
124 ></TT | |
125 ></TD | |
126 ><TD | |
127 ALIGN="LEFT" | |
128 VALIGN="TOP" | |
129 >Position of the upper-left corner of the rectangle</TD | |
130 ></TR | |
131 ><TR | |
132 ><TD | |
133 ALIGN="LEFT" | |
134 VALIGN="TOP" | |
135 ><TT | |
136 CLASS="STRUCTFIELD" | |
137 ><I | |
138 >w, h</I | |
139 ></TT | |
140 ></TD | |
141 ><TD | |
142 ALIGN="LEFT" | |
143 VALIGN="TOP" | |
144 >The width and height of the rectangle</TD | |
145 ></TR | |
146 ></TBODY | |
147 ></TABLE | |
148 ><P | |
149 ></P | |
150 ></DIV | |
151 ></DIV | |
152 ><DIV | |
153 CLASS="REFSECT1" | |
154 ><A | |
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155 NAME="AEN3065" |
0 | 156 ></A |
157 ><H2 | |
158 >Description</H2 | |
159 ><P | |
160 >A <SPAN | |
161 CLASS="STRUCTNAME" | |
162 >SDL_Rect</SPAN | |
163 > defines a rectangular area of pixels. It is used by <A | |
164 HREF="sdlblitsurface.html" | |
165 ><TT | |
166 CLASS="FUNCTION" | |
167 >SDL_BlitSurface</TT | |
168 ></A | |
169 > to define blitting regions and by several other video functions.</P | |
170 ></DIV | |
171 ><DIV | |
172 CLASS="REFSECT1" | |
173 ><A | |
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174 NAME="AEN3071" |
0 | 175 ></A |
176 ><H2 | |
177 >See Also</H2 | |
178 ><P | |
179 ><A | |
180 HREF="sdlblitsurface.html" | |
181 ><TT | |
182 CLASS="FUNCTION" | |
183 >SDL_BlitSurface</TT | |
184 ></A | |
185 >, | |
186 <A | |
187 HREF="sdlupdaterect.html" | |
188 ><TT | |
189 CLASS="FUNCTION" | |
190 >SDL_UpdateRect</TT | |
191 ></A | |
192 ></P | |
193 ></DIV | |
194 ><DIV | |
195 CLASS="NAVFOOTER" | |
196 ><HR | |
197 ALIGN="LEFT" | |
198 WIDTH="100%"><TABLE | |
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199 SUMMARY="Footer navigation table" |
0 | 200 WIDTH="100%" |
201 BORDER="0" | |
202 CELLPADDING="0" | |
203 CELLSPACING="0" | |
204 ><TR | |
205 ><TD | |
206 WIDTH="33%" | |
207 ALIGN="left" | |
208 VALIGN="top" | |
209 ><A | |
210 HREF="sdlglattr.html" | |
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parents:
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211 ACCESSKEY="P" |
0 | 212 >Prev</A |
213 ></TD | |
214 ><TD | |
215 WIDTH="34%" | |
216 ALIGN="center" | |
217 VALIGN="top" | |
218 ><A | |
219 HREF="index.html" | |
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220 ACCESSKEY="H" |
0 | 221 >Home</A |
222 ></TD | |
223 ><TD | |
224 WIDTH="33%" | |
225 ALIGN="right" | |
226 VALIGN="top" | |
227 ><A | |
228 HREF="sdlcolor.html" | |
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parents:
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229 ACCESSKEY="N" |
0 | 230 >Next</A |
231 ></TD | |
232 ></TR | |
233 ><TR | |
234 ><TD | |
235 WIDTH="33%" | |
236 ALIGN="left" | |
237 VALIGN="top" | |
238 >SDL_GLattr</TD | |
239 ><TD | |
240 WIDTH="34%" | |
241 ALIGN="center" | |
242 VALIGN="top" | |
243 ><A | |
244 HREF="video.html" | |
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parents:
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245 ACCESSKEY="U" |
0 | 246 >Up</A |
247 ></TD | |
248 ><TD | |
249 WIDTH="33%" | |
250 ALIGN="right" | |
251 VALIGN="top" | |
252 >SDL_Color</TD | |
253 ></TR | |
254 ></TABLE | |
255 ></DIV | |
256 ></BODY | |
257 ></HTML | |
258 > |