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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_window.cpp
+12 -18
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@@ -88,19 +88,17 @@ void AGS::open_text_window(int index, bool erase)
free(text_w[index - 1].screen);
}
text_w[index - 1].screen = (uint32*)malloc(width * height * sizeof(uint32));
text_w[index - 1].screen = (uint8_t*)malloc(width * height);
text_w[index - 1].screen_x = sx;
text_w[index - 1].screen_y = sy;
text_w[index - 1].screen_width = width;
text_w[index - 1].screen_height = height;
for(int y = 0; y < height && y + sy < 480; y++) {
uint32* scr = surface_line(hBmpDest, y + sy) + sx;
uint32_t* scr = surface_line(hBmpDest, y + sy) + sx;
for(int x = 0; x < width && x + sx < 640; x++) {
uint32 col = vram[0][y + sy][x + sx];
if(!(col & 0x80000000)) {
text_w[index - 1].screen_palette[col & 0xff] = scr[x];
}
uint8_t col = vram[0][y + sy][x + sx];
text_w[index - 1].screen_palette[col] = scr[x];
text_w[index - 1].screen[x + width * y] = col;
}
}
@@ -149,7 +147,7 @@ void AGS::close_text_window(int index, bool update)
free(text_w[index - 1].window);
}
text_w[index - 1].window = (uint32*)malloc(width * height * sizeof(uint32));
text_w[index - 1].window = (uint8_t*)malloc(width * height);
text_w[index - 1].window_x = sx;
text_w[index - 1].window_y = sy;
text_w[index - 1].window_width = width;
@@ -158,10 +156,8 @@ void AGS::close_text_window(int index, bool update)
for(int y = 0; y < height && y + sy < 480; y++) {
uint32* scr = surface_line(hBmpDest, y + sy) + sx;
for(int x = 0; x < width && x + sx < 640; x++) {
uint32 col = vram[0][y + sy][x + sx];
if(!(col & 0x80000000)) {
text_w[index - 1].window_palette[col & 0xff] = scr[x];
}
uint8_t col = vram[0][y + sy][x + sx];
text_w[index - 1].window_palette[col] = scr[x];
text_w[index - 1].window[x + width * y] = col;
}
}
@@ -197,7 +193,7 @@ void AGS::close_text_window(int index, bool update)
void AGS::clear_menu_window()
{
// TODO: use draw function
memset(hBmpScreen[2]->pixels, menu_back_color, 640 * 480 * sizeof(Uint32));
memset(hBmpScreen[2]->pixels, menu_back_color, 640 * 480);
}
void AGS::open_menu_window(int index)
@@ -221,7 +217,7 @@ void AGS::open_menu_window(int index)
free(menu_w[index - 1].screen);
}
menu_w[index - 1].screen = (uint32*)malloc(wwidth * wheight * sizeof(uint32));
menu_w[index - 1].screen = (uint8_t*)malloc(wwidth * wheight);
menu_w[index - 1].screen_x = wsx;
menu_w[index - 1].screen_y = wsy;
menu_w[index - 1].screen_width = wwidth;
@@ -230,10 +226,8 @@ void AGS::open_menu_window(int index)
for(int y = 0; y < wheight && y + wsy < 480; y++) {
uint32* scr = surface_line(hBmpDest, y + wsy) + wsx;
for(int x = 0; x < wwidth && x + wsx < 640; x++) {
uint32 col = vram[0][y + wsy][x + wsx];
if(!(col & 0x80000000)) {
menu_w[index - 1].screen_palette[col & 0xff] = scr[x];
}
uint8_t col = vram[0][y + wsy][x + wsx];
menu_w[index - 1].screen_palette[col] = scr[x];
menu_w[index - 1].screen[x + wwidth * y] = col;
}
}
@@ -294,7 +288,7 @@ void AGS::draw_window(int sx, int sy, int ex, int ey, bool frame, uint8 frame_co
{
// 領域の塗り潰し
for(int y = sy; y <= ey && y < 480; y++) {
uint32* dest = vram[0][y];
uint8_t* dest = vram[0][y];
for(int x = sx; x <= ex && x < 640; x++) {
dest[x] = back_color;
}