Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_Overlay.3 @ 4170:092c0bc69155 SDL-1.2
Fixed bug #618
Description From Tim Angus 2008-08-30 12:23:56 (-) [reply]
As we all know SDL 1.2 doesn't handle dead keys well since one key press
potentially equals two (or more) characters. For example, on many layouts,
keying <backquote>,<space> results in <no character>,<backquote><space>. Since
the unicode member of the SDL_keysym struct only has room for one character,
only one can be returned.
On Linux, the first character is returned. On Windows however, unless the exact
number of characters generated by the keypress is 1, nothing is returned. The
following patch addresses this inconsistency.
Updated patch which includes a further fix to the handling of the numpad when
numlock is on. This further fix is courtesy Amanieu d'Antras.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 13 Apr 2009 08:42:09 +0000 |
| parents | 4e3b250c950e |
| children | 1238da4a7112 |
| rev | line source |
|---|---|
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
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1 .TH "SDL_Overlay" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
|
4107
4e3b250c950e
Erik Heckers fixed bug #493
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
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3 SDL_Overlay \- YUV video overlay |
| 0 | 4 .SH "STRUCTURE DEFINITION" |
| 5 .PP | |
| 6 .nf | |
| 7 \f(CWtypedef struct{ | |
| 8 Uint32 format; | |
| 9 int w, h; | |
| 10 int planes; | |
| 11 Uint16 *pitches; | |
| 12 Uint8 **pixels; | |
| 13 Uint32 hw_overlay:1; | |
| 14 } SDL_Overlay;\fR | |
| 15 .fi | |
| 16 .PP | |
| 17 .SH "STRUCTURE DATA" | |
| 18 .TP 20 | |
| 19 \fBformat\fR | |
| 20 Overlay format (see below) | |
| 21 .TP 20 | |
| 22 \fBw, h\fR | |
| 23 Width and height of overlay | |
| 24 .TP 20 | |
| 25 \fBplanes\fR | |
| 26 Number of planes in the overlay\&. Usually either 1 or 3 | |
| 27 .TP 20 | |
| 28 \fBpitches\fR | |
| 29 An array of pitches, one for each plane\&. Pitch is the length of a row in bytes\&. | |
| 30 .TP 20 | |
| 31 \fBpixels\fR | |
| 32 An array of pointers to teh data of each plane\&. The overlay should be locked before these pointers are used\&. | |
| 33 .TP 20 | |
| 34 \fBhw_overlay\fR | |
| 35 This will be set to 1 if the overlay is hardware accelerated\&. | |
| 36 .SH "DESCRIPTION" | |
| 37 .PP | |
| 38 A \fBSDL_Overlay\fR is similar to a \fI\fBSDL_Surface\fR\fR except it stores a YUV overlay\&. All the fields are read only, except for \fBpixels\fR which should be \fIlocked\fR before use\&. The \fBformat\fR field stores the format of the overlay which is one of the following: | |
| 39 .PP | |
| 40 .nf | |
| 41 \f(CW#define SDL_YV12_OVERLAY 0x32315659 /* Planar mode: Y + V + U */ | |
| 42 #define SDL_IYUV_OVERLAY 0x56555949 /* Planar mode: Y + U + V */ | |
| 43 #define SDL_YUY2_OVERLAY 0x32595559 /* Packed mode: Y0+U0+Y1+V0 */ | |
| 44 #define SDL_UYVY_OVERLAY 0x59565955 /* Packed mode: U0+Y0+V0+Y1 */ | |
| 45 #define SDL_YVYU_OVERLAY 0x55595659 /* Packed mode: Y0+V0+Y1+U0 */\fR | |
| 46 .fi | |
| 47 .PP | |
| 48 More information on YUV formats can be found at \fIhttp://www\&.webartz\&.com/fourcc/indexyuv\&.htm (link to URL http://www.webartz.com/fourcc/indexyuv.htm) \fR\&. | |
| 49 .SH "SEE ALSO" | |
| 50 .PP | |
| 51 \fI\fBSDL_CreateYUVOverlay\fP\fR, \fI\fBSDL_LockYUVOverlay\fP\fR, \fI\fBSDL_UnlockYUVOverlay\fP\fR, \fI\fBSDL_FreeYUVOverlay\fP\fR | |
|
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Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
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52 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |