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annotate docs/man3/SDL_UpdateRect.3 @ 1257:448a9a64537b

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[PATCH] SDL_GetVideoMode() does not find best mode, part 2 Following commit 1.51, I come accross a problem when SDL must choose between several video modes that could suit the one asked. If I ask 320x240 with this list: 768x480 768x240 640x400 640x200 384x480 384x240 320x400 320x200 The smallest selectables modes are 384x240 and 320x400. And SDL choose the later in this list, but 384x240 is more suitable. So I added a check to compare the pixel count (surface) of modes, and select the one which has the smallest pixel count. In my example, 384x240 has 92160 pixels, and 320x400 has 128000 pixels. So now SDL will choose 384x240 for the asked 320x240 mode.
author Patrice Mandin <patmandin@gmail.com>
date Thu, 19 Jan 2006 21:28:52 +0000
parents e5bc29de3f0a
children 546f7c1eb755
rev   line source
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e5bc29de3f0a Updated from the SDL Documentation Project
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1 .TH "SDL_UpdateRect" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference"
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2 .SH "NAME"
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3 SDL_UpdateRect\- Makes sure the given area is updated on the given screen\&.
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4 .SH "SYNOPSIS"
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5 .PP
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6 \fB#include "SDL\&.h"
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7 .sp
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8 \fBvoid \fBSDL_UpdateRect\fP\fR(\fBSDL_Surface *screen, Sint32 x, Sint32 y, Sint32 w, Sint32 h\fR);
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9 .SH "DESCRIPTION"
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10 .PP
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11 Makes sure the given area is updated on the given screen\&. The rectangle must be confined within the screen boundaries (no clipping is done)\&.
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12 .PP
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13 If \&'\fBx\fR\&', \&'\fBy\fR\&', \&'\fBw\fR\&' and \&'\fBh\fR\&' are all 0, \fBSDL_UpdateRect\fP will update the entire screen\&.
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14 .PP
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15 This function should not be called while \&'\fBscreen\fR\&' is \fIlocked\fR\&.
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16 .SH "SEE ALSO"
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17 .PP
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18 \fI\fBSDL_UpdateRects\fP\fR, \fI\fBSDL_Rect\fR\fR, \fI\fBSDL_Surface\fR\fR, \fI\fBSDL_LockSurface\fP\fR
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19 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01