Mercurial > sdl-ios-xcode
annotate docs/html/guide.html @ 1240:3b8a43c428bb
From Bug #36:
There are a couple of issues with the selection of Altivec alpha-blitting
routines in CalculateAlphaBlit() in src/video/SDL_Blit_A.c.
1) There's no check for the presence of Altivec when checking if the
Blit32to565PixelAlphaAltivec() routine can be selected.
2) Altivec cannot be used in video memory, and there's no check if the
destination surface is a hardware surface. (Alpha-blitting to a hardware
surface with GPU support is a bad idea, but somebody's bound to do it anyway.)
Patch to fix these attached.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Sun, 08 Jan 2006 21:18:15 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL Guide</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="PREVIOUS" | |
| 13 TITLE="SDL Library Documentation" | |
| 14 HREF="index.html"><LINK | |
| 15 REL="NEXT" | |
| 16 TITLE="Preface" | |
| 17 HREF="guidepreface.html"></HEAD | |
| 18 ><BODY | |
| 19 CLASS="PART" | |
| 20 BGCOLOR="#FFF8DC" | |
| 21 TEXT="#000000" | |
| 22 LINK="#0000ee" | |
| 23 VLINK="#551a8b" | |
| 24 ALINK="#ff0000" | |
| 25 ><DIV | |
| 26 CLASS="NAVHEADER" | |
| 27 ><TABLE | |
|
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parents:
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diff
changeset
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28 SUMMARY="Header navigation table" |
| 0 | 29 WIDTH="100%" |
| 30 BORDER="0" | |
| 31 CELLPADDING="0" | |
| 32 CELLSPACING="0" | |
| 33 ><TR | |
| 34 ><TH | |
| 35 COLSPAN="3" | |
| 36 ALIGN="center" | |
| 37 >SDL Library Documentation</TH | |
| 38 ></TR | |
| 39 ><TR | |
| 40 ><TD | |
| 41 WIDTH="10%" | |
| 42 ALIGN="left" | |
| 43 VALIGN="bottom" | |
| 44 ><A | |
| 45 HREF="index.html" | |
|
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355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
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46 ACCESSKEY="P" |
| 0 | 47 >Prev</A |
| 48 ></TD | |
| 49 ><TD | |
| 50 WIDTH="80%" | |
| 51 ALIGN="center" | |
| 52 VALIGN="bottom" | |
| 53 ></TD | |
| 54 ><TD | |
| 55 WIDTH="10%" | |
| 56 ALIGN="right" | |
| 57 VALIGN="bottom" | |
| 58 ><A | |
| 59 HREF="guidepreface.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
60 ACCESSKEY="N" |
| 0 | 61 >Next</A |
| 62 ></TD | |
| 63 ></TR | |
| 64 ></TABLE | |
| 65 ><HR | |
| 66 ALIGN="LEFT" | |
| 67 WIDTH="100%"></DIV | |
| 68 ><DIV | |
| 69 CLASS="PART" | |
| 70 ><A | |
| 71 NAME="GUIDE" | |
| 72 ></A | |
| 73 ><DIV | |
| 74 CLASS="TITLEPAGE" | |
| 75 ><H1 | |
| 76 CLASS="TITLE" | |
| 77 >I. SDL Guide</H1 | |
| 78 ><DIV | |
| 79 CLASS="TOC" | |
| 80 ><DL | |
| 81 ><DT | |
| 82 ><B | |
| 83 >Table of Contents</B | |
| 84 ></DT | |
| 85 ><DT | |
| 86 ><A | |
| 87 HREF="guidepreface.html" | |
| 88 >Preface</A | |
| 89 ></DT | |
| 90 ><DT | |
| 91 >1. <A | |
| 92 HREF="guidethebasics.html" | |
| 93 >The Basics</A | |
| 94 ></DT | |
| 95 ><DT | |
| 96 >2. <A | |
| 97 HREF="guidevideo.html" | |
| 98 >Graphics and Video</A | |
| 99 ></DT | |
| 100 ><DT | |
| 101 >3. <A | |
| 102 HREF="guideinput.html" | |
| 103 >Input handling</A | |
| 104 ></DT | |
| 105 ><DT | |
| 106 >4. <A | |
| 107 HREF="guideexamples.html" | |
| 108 >Examples</A | |
| 109 ></DT | |
| 110 ></DL | |
| 111 ></DIV | |
| 112 ></DIV | |
| 113 ></DIV | |
| 114 ><DIV | |
| 115 CLASS="NAVFOOTER" | |
| 116 ><HR | |
| 117 ALIGN="LEFT" | |
| 118 WIDTH="100%"><TABLE | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
119 SUMMARY="Footer navigation table" |
| 0 | 120 WIDTH="100%" |
| 121 BORDER="0" | |
| 122 CELLPADDING="0" | |
| 123 CELLSPACING="0" | |
| 124 ><TR | |
| 125 ><TD | |
| 126 WIDTH="33%" | |
| 127 ALIGN="left" | |
| 128 VALIGN="top" | |
| 129 ><A | |
| 130 HREF="index.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
131 ACCESSKEY="P" |
| 0 | 132 >Prev</A |
| 133 ></TD | |
| 134 ><TD | |
| 135 WIDTH="34%" | |
| 136 ALIGN="center" | |
| 137 VALIGN="top" | |
| 138 ><A | |
| 139 HREF="index.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
140 ACCESSKEY="H" |
| 0 | 141 >Home</A |
| 142 ></TD | |
| 143 ><TD | |
| 144 WIDTH="33%" | |
| 145 ALIGN="right" | |
| 146 VALIGN="top" | |
| 147 ><A | |
| 148 HREF="guidepreface.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
149 ACCESSKEY="N" |
| 0 | 150 >Next</A |
| 151 ></TD | |
| 152 ></TR | |
| 153 ><TR | |
| 154 ><TD | |
| 155 WIDTH="33%" | |
| 156 ALIGN="left" | |
| 157 VALIGN="top" | |
| 158 >SDL Library Documentation</TD | |
| 159 ><TD | |
| 160 WIDTH="34%" | |
| 161 ALIGN="center" | |
| 162 VALIGN="top" | |
| 163 > </TD | |
| 164 ><TD | |
| 165 WIDTH="33%" | |
| 166 ALIGN="right" | |
| 167 VALIGN="top" | |
| 168 >Preface</TD | |
| 169 ></TR | |
| 170 ></TABLE | |
| 171 ></DIV | |
| 172 ></BODY | |
| 173 ></HTML | |
| 174 > |