Mercurial > sdl-ios-xcode
annotate docs/html/sdlgetcliprect.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 |
children |
rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_GetClipRect</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_SetClipRect" | |
17 HREF="sdlsetcliprect.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_ConvertSurface" | |
20 HREF="sdlconvertsurface.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="sdlsetcliprect.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="sdlconvertsurface.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="SDLGETCLIPRECT" | |
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74 ></A |
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75 >SDL_GetClipRect</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN2230" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_GetClipRect -- Gets the clipping rectangle for a surface.</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN2233" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN2234" |
0 | 95 ></A |
96 ><P | |
97 ></P | |
98 ><PRE | |
99 CLASS="FUNCSYNOPSISINFO" | |
100 >#include "SDL.h"</PRE | |
101 ><P | |
102 ><CODE | |
103 ><CODE | |
104 CLASS="FUNCDEF" | |
105 >void <B | |
106 CLASS="FSFUNC" | |
107 >SDL_GetClipRect</B | |
108 ></CODE | |
109 >(SDL_Surface *surface, SDL_Rect *rect);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN2240" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Gets the clipping rectangle for a surface. When this surface is the | |
124 destination of a blit, only the area within the clip rectangle is | |
125 drawn into.</P | |
126 ><P | |
127 >The rectangle pointed to by <TT | |
128 CLASS="PARAMETER" | |
129 ><I | |
130 >rect</I | |
131 ></TT | |
132 > will be | |
133 filled with the clipping rectangle of the surface.</P | |
134 ></DIV | |
135 ><DIV | |
136 CLASS="REFSECT1" | |
137 ><A | |
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138 NAME="AEN2245" |
0 | 139 ></A |
140 ><H2 | |
141 >See Also</H2 | |
142 ><P | |
143 ><A | |
144 HREF="sdlsetcliprect.html" | |
145 ><TT | |
146 CLASS="FUNCTION" | |
147 >SDL_SetClipRect</TT | |
148 ></A | |
149 >, | |
150 <A | |
151 HREF="sdlblitsurface.html" | |
152 ><TT | |
153 CLASS="FUNCTION" | |
154 >SDL_BlitSurface</TT | |
155 ></A | |
156 >, | |
157 <A | |
158 HREF="sdlsurface.html" | |
159 ><SPAN | |
160 CLASS="STRUCTNAME" | |
161 >SDL_Surface</SPAN | |
162 ></A | |
163 ></P | |
164 ></DIV | |
165 ><DIV | |
166 CLASS="NAVFOOTER" | |
167 ><HR | |
168 ALIGN="LEFT" | |
169 WIDTH="100%"><TABLE | |
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170 SUMMARY="Footer navigation table" |
0 | 171 WIDTH="100%" |
172 BORDER="0" | |
173 CELLPADDING="0" | |
174 CELLSPACING="0" | |
175 ><TR | |
176 ><TD | |
177 WIDTH="33%" | |
178 ALIGN="left" | |
179 VALIGN="top" | |
180 ><A | |
181 HREF="sdlsetcliprect.html" | |
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parents:
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182 ACCESSKEY="P" |
0 | 183 >Prev</A |
184 ></TD | |
185 ><TD | |
186 WIDTH="34%" | |
187 ALIGN="center" | |
188 VALIGN="top" | |
189 ><A | |
190 HREF="index.html" | |
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191 ACCESSKEY="H" |
0 | 192 >Home</A |
193 ></TD | |
194 ><TD | |
195 WIDTH="33%" | |
196 ALIGN="right" | |
197 VALIGN="top" | |
198 ><A | |
199 HREF="sdlconvertsurface.html" | |
803
355632dca928
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Sam Lantinga <slouken@libsdl.org>
parents:
181
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200 ACCESSKEY="N" |
0 | 201 >Next</A |
202 ></TD | |
203 ></TR | |
204 ><TR | |
205 ><TD | |
206 WIDTH="33%" | |
207 ALIGN="left" | |
208 VALIGN="top" | |
209 >SDL_SetClipRect</TD | |
210 ><TD | |
211 WIDTH="34%" | |
212 ALIGN="center" | |
213 VALIGN="top" | |
214 ><A | |
215 HREF="video.html" | |
803
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parents:
181
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216 ACCESSKEY="U" |
0 | 217 >Up</A |
218 ></TD | |
219 ><TD | |
220 WIDTH="33%" | |
221 ALIGN="right" | |
222 VALIGN="top" | |
223 >SDL_ConvertSurface</TD | |
224 ></TR | |
225 ></TABLE | |
226 ></DIV | |
227 ></BODY | |
228 ></HTML | |
229 > |