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颜色不对齐貌似无法解决，试验一下偏倚一点

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anod 2022-10-19 16:59:38 +08:00
parent a7d4e30e82
commit c1aadf37c0
1 changed files with 12 additions and 5 deletions
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17
source/arm11/open_agb_firm.c
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@ -675,16 +675,23 @@ 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 offset = 0;
if( g_oafConfig.scaler == 0 ) offset = 3 * (240-160) / 2 + 1;
GX_displayTransfer((u32*)(0x18180000 + (16 * 240 * 3)), 368u<<16 | 240u,
GFX_getFramebuffer(SCREEN_TOP) + (16 * 240 * 3) + offset, 368u<<16 | 240u, 1u<<12 | 1u<<8);
int src_offset = 160*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 += 144;
}
GX_displayTransfer((u32*)(0x18180000 + src_offset), 368u<<16 | 240u,
GFX_getFramebuffer(SCREEN_TOP) + dst_offset, 368u<<16 | 240u, 1u<<12 | 1u<<8);
GFX_waitForPPF();
GFX_swapFramebufs();
//if(hidKeysDown() == (KEY_Y | KEY_SELECT)) dumpFrameTex();
}
taskExit();
}