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AGS: Make VRAM 8 bits per pixel

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Before this, the virtual VRAM was 32 bits per pixel, with each pixel
holding an 8-bit index color or 0x80RRGGBB. The latter was for Ayumi-
chan Monogatari Jisshaban, which has been unsupported since system3-sdl2
was forked from System3 for Win32.

This change removes the 0x80RRGGBB format and makes the virtual VRAM 8
bits per pixel.
This commit is contained in:
kichikuou
2025-01-17 10:58:46 +09:00
parent 7f0bae6f74
commit 33418f8cb5
12 changed files with 40 additions and 96 deletions
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src/sys/ags_gm3.cpp
+2 -2
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@@ -128,8 +128,8 @@ void AGS::load_gm3(uint8* data, int page, int transparent)
c[6] = ((b0 >> 1) & 1) | ((b1 ) & 2) | ((b2 << 1) & 4);
c[7] = ((b0 ) & 1) | ((b1 << 1) & 2) | ((b2 << 2) & 4);
uint32* dest0 = &vram[dest_screen][(y + sy) * 2 + 0][(x + sx) * 8];
uint32* dest1 = &vram[dest_screen][(y + sy) * 2 + 1][(x + sx) * 8];
uint8_t* dest0 = &vram[dest_screen][(y + sy) * 2 + 0][(x + sx) * 8];
uint8_t* dest1 = &vram[dest_screen][(y + sy) * 2 + 1][(x + sx) * 8];
if(transparent == -1) {
for(int i = 0; i < 8; i++) {
dest0[i] = dest1[i] = c[i] | base;