view src/video/fbcon/SDL_fbkeys.h @ 3162:dc1eb82ffdaa

Von: Thomas Zimmermann Betreff: [SDL] [PATCH] Make static variables const Datum: Tue, 19 May 2009 19:45:37 +0200 Hi, this is a set of simple changes which make some of SDL's internal static arrays constant. The purpose is to shrink the number of write-able static bytes and thus increase the number of memory pages shared between SDL applications. The patch set is against trunk@4513. Each of the attached patch files is specific to a sub-system. The set is completed by a second mail, because of the list's 40 KiB limit. The files readelf-r4513.txt and readelf-const-patch.txt where made by calling 'readelf -S libSDL.so'. They show the difference in ELF sections without and with the patch. Some numbers measured on my x86-64: Before [13] .rodata PROGBITS 00000000000eaaa0 000eaaa0 0000000000008170 0000000000000000 A 0 0 32 [19] .data.rel.ro PROGBITS 00000000003045e0 001045e0 00000000000023d0 0000000000000000 WA 0 0 32 [23] .data PROGBITS 00000000003076e0 001076e0 0000000000004988 0000000000000000 WA 0 0 32 After [13] .rodata PROGBITS 00000000000eaaa0 000eaaa0 0000000000009a50 0000000000000000 A 0 0 32 [19] .data.rel.ro PROGBITS 0000000000306040 00106040 0000000000002608 0000000000000000 WA 0 0 32 [23] .data PROGBITS 0000000000309360 00109360 0000000000002e88 0000000000000000 WA 0 0 32 The size of the write-able data section decreased considerably. Some entries became const-after-relocation, while most of its content went straight into the read-only data section. Best regards, Thomas
author Sam Lantinga <slouken@libsdl.org>
date Wed, 03 Jun 2009 04:37:27 +0000
parents c121d94672cb
children
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/* Scancodes for the Linux framebuffer console
   - Taken with thanks from SVGAlib 1.4.0
*/

#define SCANCODE_ESCAPE			1

#define SCANCODE_1			2
#define SCANCODE_2			3
#define SCANCODE_3			4
#define SCANCODE_4			5
#define SCANCODE_5			6
#define SCANCODE_6			7
#define SCANCODE_7			8
#define SCANCODE_8			9
#define SCANCODE_9			10
#define SCANCODE_0			11

#define SCANCODE_MINUS			12
#define SCANCODE_EQUAL			13

#define SCANCODE_BACKSPACE		14
#define SCANCODE_TAB			15

#define SCANCODE_Q			16
#define SCANCODE_W			17
#define SCANCODE_E			18
#define SCANCODE_R			19
#define SCANCODE_T			20
#define SCANCODE_Y			21
#define SCANCODE_U			22
#define SCANCODE_I			23
#define SCANCODE_O			24
#define SCANCODE_P			25
#define SCANCODE_BRACKET_LEFT		26
#define SCANCODE_BRACKET_RIGHT		27

#define SCANCODE_ENTER			28

#define SCANCODE_LEFTCONTROL		29

#define SCANCODE_A			30
#define SCANCODE_S			31
#define SCANCODE_D			32
#define SCANCODE_F			33
#define SCANCODE_G			34
#define SCANCODE_H			35
#define SCANCODE_J			36
#define SCANCODE_K			37
#define SCANCODE_L			38
#define SCANCODE_SEMICOLON		39
#define SCANCODE_APOSTROPHE		40
#define SCANCODE_GRAVE			41

#define SCANCODE_LEFTSHIFT		42
#define SCANCODE_BACKSLASH		43

#define SCANCODE_Z			44
#define SCANCODE_X			45
#define SCANCODE_C			46
#define SCANCODE_V			47
#define SCANCODE_B			48
#define SCANCODE_N			49
#define SCANCODE_M			50
#define SCANCODE_COMMA			51
#define SCANCODE_PERIOD			52
#define SCANCODE_SLASH			53

#define SCANCODE_RIGHTSHIFT		54
#define SCANCODE_KEYPADMULTIPLY		55

#define SCANCODE_LEFTALT		56
#define SCANCODE_SPACE			57
#define SCANCODE_CAPSLOCK		58

#define SCANCODE_F1			59
#define SCANCODE_F2			60
#define SCANCODE_F3			61
#define SCANCODE_F4			62
#define SCANCODE_F5			63
#define SCANCODE_F6			64
#define SCANCODE_F7			65
#define SCANCODE_F8			66
#define SCANCODE_F9			67
#define SCANCODE_F10			68

#define SCANCODE_NUMLOCK		69
#define SCANCODE_SCROLLLOCK		70

#define SCANCODE_KEYPAD7		71
#define SCANCODE_CURSORUPLEFT		71
#define SCANCODE_KEYPAD8		72
#define SCANCODE_CURSORUP		72
#define SCANCODE_KEYPAD9		73
#define SCANCODE_CURSORUPRIGHT		73
#define SCANCODE_KEYPADMINUS		74
#define SCANCODE_KEYPAD4		75
#define SCANCODE_CURSORLEFT		75
#define SCANCODE_KEYPAD5		76
#define SCANCODE_KEYPAD6		77
#define SCANCODE_CURSORRIGHT		77
#define SCANCODE_KEYPADPLUS		78
#define SCANCODE_KEYPAD1		79
#define SCANCODE_CURSORDOWNLEFT		79
#define SCANCODE_KEYPAD2		80
#define SCANCODE_CURSORDOWN		80
#define SCANCODE_KEYPAD3		81
#define SCANCODE_CURSORDOWNRIGHT	81
#define SCANCODE_KEYPAD0		82
#define SCANCODE_KEYPADPERIOD		83

#define SCANCODE_LESS			86

#define SCANCODE_F11			87
#define SCANCODE_F12			88

#define SCANCODE_KEYPADENTER		96
#define SCANCODE_RIGHTCONTROL		97
#define SCANCODE_CONTROL		97
#define SCANCODE_KEYPADDIVIDE		98
#define SCANCODE_PRINTSCREEN		99
#define SCANCODE_RIGHTALT		100
#define SCANCODE_BREAK			101     /* Beware: is 119     */
#define SCANCODE_BREAK_ALTERNATIVE	119     /* on some keyboards! */

#define SCANCODE_HOME			102
#define SCANCODE_CURSORBLOCKUP		103     /* Cursor key block */
#define SCANCODE_PAGEUP			104
#define SCANCODE_CURSORBLOCKLEFT	105     /* Cursor key block */
#define SCANCODE_CURSORBLOCKRIGHT	106     /* Cursor key block */
#define SCANCODE_END			107
#define SCANCODE_CURSORBLOCKDOWN	108     /* Cursor key block */
#define SCANCODE_PAGEDOWN		109
#define SCANCODE_INSERT			110
#define SCANCODE_REMOVE			111

#define SCANCODE_RIGHTWIN		126
#define SCANCODE_LEFTWIN		125
/* vi: set ts=4 sw=4 expandtab: */