Mercurial > sdl-ios-xcode
view test/testtypes.c @ 1257:448a9a64537b
[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 | d93862a3d821 |
children | 835c1831f903 |
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#include <stdio.h> #include <stdlib.h> #include <string.h> #include "SDL_main.h" #include "SDL_types.h" /* * Watcom C flags these as Warning 201: "Unreachable code" if you just * compare them directly, so we push it through a function to keep the * compiler quiet. --ryan. */ static int badsize(size_t sizeoftype, size_t hardcodetype) { return sizeoftype != hardcodetype; } int main(int argc, char *argv[]) { int error = 0; int verbose = 1; if ( argv[1] && (strcmp(argv[1], "-q") == 0) ) verbose = 0; if ( badsize(sizeof(Uint8), 1) ) { if ( verbose ) printf("sizeof(Uint8) != 1, instead = %d\n", sizeof(Uint8)); ++error; } if ( badsize(sizeof(Uint16), 2) ) { if ( verbose ) printf("sizeof(Uint16) != 2, instead = %d\n", sizeof(Uint16)); ++error; } if ( badsize(sizeof(Uint32), 4) ) { if ( verbose ) printf("sizeof(Uint32) != 4, instead = %d\n", sizeof(Uint32)); ++error; } #ifdef SDL_HAS_64BIT_TYPE if ( badsize(sizeof(Uint64), 8) ) { if ( verbose ) printf("sizeof(Uint64) != 8, instead = %d\n", sizeof(Uint64)); ++error; } #else if ( verbose ) { printf("WARNING: No 64-bit datatype on this platform\n"); } #endif if ( verbose && ! error ) printf("All data types are the expected size.\n"); return( error ? 1 : 0 ); }