anod/oaf-boost
1
0
Fork 0
mirror of https://gitee.com/anod/open_agb_firm.git synced 2025-05-06 22:04:10 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

试试使用下屏作为显示

Browse Source
This commit is contained in:
anod 2022-10-19 18:09:05 +08:00
parent fe386988ff
commit 019b1501c9
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
source/arm11/open_agb_firm.c
View File

@ -675,17 +675,19 @@ static void gbaGfxHandler(void *args)
// 地址0x18180000保存的是360x240大小的贴图数据rgb888(序列：↑↘↑)
// 地址0x18200000保存的是512x512大小的GBA的240x160贴图数据(序列：→↙→)
// 所以GPU做的事情就是将18200000的数据逆时针旋转90°
int src_offset = 16*240*3;
int src = 16*240*3;
int dst_offset = src_offset;
if( g_oafConfig.scaler == 0 )
{
int base_offset = 120; // 3ds高240, gba高160，居中需要平移40个像素，rgb888每个像素3字节，共120字节
// 但是，gpu的transfer engine只支持16字节对齐的地址。现在需要
// 0x18180000 <----------> screen_top + 16*240*3 + 120 是正确对准，左边对16求余为0，右边为8
dst_offset += 144;
// 现在右边加上8，是2|2/3个像素
GX_displayTransfer((u32*)(0x18180000 + 24*240*3), 300u<<16 | 240u,
GFX_getFramebuffer(SCREEN_BOT) + 40*3, 300u<<16 | 240u, 2u<<12 | 1u<<8);
}
GX_displayTransfer((u32*)(0x18180000 + src_offset), 368u<<16 | 240u,
GFX_getFramebuffer(SCREEN_TOP) + dst_offset, 368u<<16 | 240u, 1u<<12 | 1u<<8);
else GX_displayTransfer((u32*)(0x18180000 + 16*240*3), 368u<<16 | 240u,
GFX_getFramebuffer(SCREEN_TOP) + 16*240*3, 368u<<16 | 240u, 1u<<12 | 1u<<8);
GFX_waitForPPF();
GFX_swapFramebufs();