#include <nitro/gx/gx_bgcnt.h>
void G2_SetBG3ControlAffine(
GXBGScrSizeAffine screenSize,
GXBGAreaOver areaOver,
GXBGScrBase screenBase,
GXBGCharBase charBase
);
screenSize | screen size |
areaOver | Option for out-of-area processing |
screenBase | Screen base block |
charBase | Character base block |
None.
This function sets BG3 (for affine BG).
GX_BG_SCRSIZE_AFFINE_128x128 |
Sets screen size to 128x128 pixels (256 bytes). |
GX_BG_SCRSIZE_AFFINE_256x256 |
Sets screen size to 256x256 pixels (1 kilobyte). |
GX_BG_SCRSIZE_AFFINE_512x512 |
Sets screen size to 512x512 pixels (4 kilobytes). |
GX_BG_SCRSIZE_AFFINE_1024x1024 |
Sets screen size to 1024x1024 pixels (16 kilobytes). |
GX_BG_AREAOVER_XLU |
Transparent display of the out-of-area region |
GX_BG_AREAOVER_REPEAT |
Wraparound display of the out-of-area region |
GX_BG_SCRBASE_0xnnnn |
Specifies BG3 screen base block. Refer to GX_SetBGScrOffset . |
GX_BG_CHARBASE_0xnnnnn |
Specifies BG3 character base block. Refer to GX_SetBGCharOffset . |
The following describes the enumerated type definitions of the arguments.
typedef enum { GX_BG_SCRSIZE_AFFINE_128x128 = 0, GX_BG_SCRSIZE_AFFINE_256x256 = 1, GX_BG_SCRSIZE_AFFINE_512x512 = 2, GX_BG_SCRSIZE_AFFINE_1024x1024 = 3 } GXBGScrSizeAffine; typedef enum { GX_BG_AREAOVER_XLU = 0, GX_BG_AREAOVER_REPEAT = 1 } GXBGAreaOver; typedef enum { GX_BG_SCRBASE_0x0000 = 0, GX_BG_SCRBASE_0x0800 = 1, GX_BG_SCRBASE_0x1000 = 2, GX_BG_SCRBASE_0x1800 = 3, GX_BG_SCRBASE_0x2000 = 4, GX_BG_SCRBASE_0x2800 = 5, GX_BG_SCRBASE_0x3000 = 6, GX_BG_SCRBASE_0x3800 = 7, GX_BG_SCRBASE_0x4000 = 8, GX_BG_SCRBASE_0x4800 = 9, GX_BG_SCRBASE_0x5000 = 10, GX_BG_SCRBASE_0x5800 = 11, GX_BG_SCRBASE_0x6000 = 12, GX_BG_SCRBASE_0x6800 = 13, GX_BG_SCRBASE_0x7000 = 14, GX_BG_SCRBASE_0x7800 = 15, GX_BG_SCRBASE_0x8000 = 16, GX_BG_SCRBASE_0x8800 = 17, GX_BG_SCRBASE_0x9000 = 18, GX_BG_SCRBASE_0x9800 = 19, GX_BG_SCRBASE_0xa000 = 20, GX_BG_SCRBASE_0xa800 = 21, GX_BG_SCRBASE_0xb000 = 22, GX_BG_SCRBASE_0xb800 = 23, GX_BG_SCRBASE_0xc000 = 24, GX_BG_SCRBASE_0xc800 = 25, GX_BG_SCRBASE_0xd000 = 26, GX_BG_SCRBASE_0xd800 = 27, GX_BG_SCRBASE_0xe000 = 28, GX_BG_SCRBASE_0xe800 = 29, GX_BG_SCRBASE_0xf000 = 30, GX_BG_SCRBASE_0xf800 = 31 } GXBGScrBase; typedef enum { GX_BG_CHARBASE_0x00000 = 0, GX_BG_CHARBASE_0x04000 = 1, GX_BG_CHARBASE_0x08000 = 2, GX_BG_CHARBASE_0x0c000 = 3, GX_BG_CHARBASE_0x10000 = 4, GX_BG_CHARBASE_0x14000 = 5, GX_BG_CHARBASE_0x18000 = 6, GX_BG_CHARBASE_0x1c000 = 7, GX_BG_CHARBASE_0x20000 = 8, GX_BG_CHARBASE_0x24000 = 9, GX_BG_CHARBASE_0x28000 = 10, GX_BG_CHARBASE_0x2c000 = 11, GX_BG_CHARBASE_0x30000 = 12, GX_BG_CHARBASE_0x34000 = 13, GX_BG_CHARBASE_0x38000 = 14, GX_BG_CHARBASE_0x3c000 = 15 } GXBGCharBase;
01/19/2004 Initial version.