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icl8: get mask from matching ICN# resource

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This commit is contained in:
Iliyas Jorio 2020-11-19 09:02:27 +01:00
parent 85d521b196
commit 8fdc27efb0
1 changed files with 22 additions and 5 deletions
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27
src/Graphics/Graphics.cpp
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@ -650,12 +650,22 @@ void DrawChar(char c)
void Pomme::Graphics::SetWindowIconFromIcl8Resource(short icl8ID)
{
Handle macIcon = GetResource('icl8', icl8ID);
if (1024 != GetHandleSize(macIcon))
Handle colorIcon = GetResource('icl8', icl8ID);
if (1024 != GetHandleSize(colorIcon))
{
DisposeHandle(colorIcon);
throw std::invalid_argument("icl8 resource has incorrect size");
}
Handle bwIcon = GetResource('ICN#', icl8ID);
if (256 != GetHandleSize(bwIcon))
{
DisposeHandle(bwIcon);
throw std::invalid_argument("ICN# resource has incorrect size");
}
uint32_t* maskScanlines = (uint32_t*)(*bwIcon + 128); // mask starts 128 bytes into ICN# resource
ByteswapInts(4, 32, maskScanlines);
const int width = 32;
const int height = 32;
@ -665,11 +675,18 @@ void Pomme::Graphics::SetWindowIconFromIcl8Resource(short icl8ID)
uint32_t* out = (uint32_t*) ((char*) icon->pixels + icon->pitch * y);
for (int x = 0; x < width; x++)
{
unsigned char pixel = (*macIcon)[y * width + x];
*out++ = pixel == 0 ? 0 : Pomme::Graphics::clut8[pixel];
uint8_t paletteEntry = (*colorIcon)[y * width + x];
uint32_t argb = Pomme::Graphics::clut8[paletteEntry];
bool masked = maskScanlines[y] & (1 << (width - 1 - x));
if (!masked)
{
argb &= 0x00FFFFFF;
}
*out++ = argb;
}
}
SDL_SetWindowIcon(gSDLWindow, icon);
SDL_FreeSurface(icon);
DisposeHandle(macIcon);
DisposeHandle(colorIcon);
DisposeHandle(bwIcon);
}