Mirror/Luma3DS
1
0
Fork 0
mirror of https://github.com/LumaTeam/Luma3DS.git synced 2026-02-22 01:44:38 +00:00
Code Issues Packages Projects Releases Wiki Activity

rosalina: make sure pixel data is aligned in screenshots

Browse Source
This commit is contained in:
TuxSH 2025-07-30 12:53:46 +02:00
parent 55d694fbdd
commit 12b15812f2
2 changed files with 11 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
sysmodules/rosalina/source/draw.c
View File

@ -268,14 +268,18 @@ static inline void Draw_WriteUnaligned(u8 *dst, u32 tmp, u32 size)
void Draw_CreateBitmapHeader(u8 *dst, u32 width, u32 heigth)
{
static const u8 bmpHeaderTemplate[54] = {
0x42, 0x4D, 0xCC, 0xCC, 0xCC, 0xCC, 0x00, 0x00, 0x00, 0x00, 0x36, 0x00, 0x00, 0x00, 0x28, 0x00,
0x00, 0x00, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0x01, 0x00, 0x18, 0x00, 0x00, 0x00,
0x00, 0x00, 0xCC, 0xCC, 0xCC, 0xCC, 0x12, 0x0B, 0x00, 0x00, 0x12, 0x0B, 0x00, 0x00, 0x00, 0x00,
// BITMAPFILEHEADER
0x42, 0x4D, 0xCC, 0xCC, 0xCC, 0xCC, 0x00, 0x00, 0x00, 0x00, 0x40 /* data offset */, 0x00, 0x00, 0x00,
// BITMAPINFOHEADER
0x28, 0x00, 0x00, 0x00, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0x01, 0x00, 0x18, 0x00, 0x00,
0x00, 0x00, 0x00, 0xCC, 0xCC, 0xCC, 0xCC, 0x12, 0x0B, 0x00, 0x00, 0x12, 0x0B, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
memcpy(dst, bmpHeaderTemplate, 54);
Draw_WriteUnaligned(dst + 2, 54 + 3 * width * heigth, 4);
memset(dst + 54, 0, 64 - 54);
Draw_WriteUnaligned(dst + 2, 64 + 3 * width * heigth, 4);
Draw_WriteUnaligned(dst + 0x12, width, 4);
Draw_WriteUnaligned(dst + 0x16, heigth, 4);
Draw_WriteUnaligned(dst + 0x22, 3 * width * heigth, 4);

5
sysmodules/rosalina/source/menus.c
View File

@ -273,7 +273,8 @@ static Result RosalinaMenu_WriteScreenshot(IFile *file, u32 width, bool top, boo
u8 *buf = framebufferCache;
Draw_CreateBitmapHeader(framebufferCache, width, numLinesScaled);
buf += 54;
const u32 headerSize = 0x40;
buf += headerSize;
u32 y = 0;
// Our buffer might be smaller than the size of the screenshot...
@ -287,7 +288,7 @@ static Result RosalinaMenu_WriteScreenshot(IFile *file, u32 width, bool top, boo
s64 t1 = svcGetSystemTick();
timeSpentConvertingScreenshot += t1 - t0;
TRY(IFile_Write(file, &total, framebufferCache, (y == 0 ? 54 : 0) + lineSize * nlines * scaleFactorY, 0)); // don't forget to write the header
TRY(IFile_Write(file, &total, framebufferCache, (y == 0 ? headerSize : 0) + lineSize * nlines * scaleFactorY, 0)); // don't forget to write the header
timeSpentWritingScreenshot += svcGetSystemTick() - t1;
y += nlines;