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Committed patch #2050337 "KYRA/SCUMM: Thumbnail support/improvement". (Without Max' compressed backward seeking support for now)

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svn-id: r34053
This commit is contained in:
Johannes Schickel 2008-08-20 14:03:34 +00:00
parent a79e9385a1
commit f4fc8c3e4c
32 changed files with 464 additions and 164 deletions
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125
graphics/scaler/thumbnail.cpp
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@ -126,70 +126,93 @@ static bool grabScreen565(Graphics::Surface *surf) {
return true;
}
static bool createThumbnail(Graphics::Surface &out, Graphics::Surface &in) {
uint16 width = in.w;
uint16 inHeight = in.h;
if (width < 320) {
// Special case to handle MM NES (uses a screen width of 256)
width = 320;
// center MM NES screen
Graphics::Surface newscreen;
newscreen.create(width, in.h, in.bytesPerPixel);
uint8 *dst = (uint8*)newscreen.getBasePtr((320 - in.w) / 2, 0);
const uint8 *src = (uint8*)in.getBasePtr(0, 0);
uint16 height = in.h;
while (height--) {
memcpy(dst, src, in.pitch);
dst += newscreen.pitch;
src += in.pitch;
}
in.free();
in = newscreen;
} else if (width == 720) {
// Special case to handle Hercules mode
width = 640;
inHeight = 400;
// cut off menu and so on..
Graphics::Surface newscreen;
newscreen.create(width, 400, in.bytesPerPixel);
uint8 *dst = (uint8*)in.getBasePtr(0, (400 - 240) / 2);
const uint8 *src = (uint8*)in.getBasePtr(41, 28);
for (int y = 0; y < 240; ++y) {
memcpy(dst, src, 640 * in.bytesPerPixel);
dst += newscreen.pitch;
src += in.pitch;
}
in.free();
in = newscreen;
}
uint16 newHeight = !(inHeight % 240) ? kThumbnailHeight2 : kThumbnailHeight1;
int gBitFormatBackUp = gBitFormat;
gBitFormat = 565;
out.create(kThumbnailWidth, newHeight, sizeof(uint16));
createThumbnail((const uint8 *)in.pixels, width * sizeof(uint16), (uint8 *)out.pixels, out.pitch, width, inHeight);
gBitFormat = gBitFormatBackUp;
in.free();
return true;
}
bool createThumbnailFromScreen(Graphics::Surface* surf) {
assert(surf);
int screenWidth = g_system->getWidth();
int screenHeight = g_system->getHeight();
Graphics::Surface screen;
if (!grabScreen565(&screen))
return false;
uint16 width = screenWidth;
return createThumbnail(*surf, screen);
}
if (screenWidth < 320) {
// Special case to handle MM NES (uses a screen width of 256)
width = 320;
bool createThumbnail(Graphics::Surface *surf, const uint8 *pixels, int w, int h, const uint8 *palette) {
assert(surf);
// center MM NES screen
Graphics::Surface newscreen;
newscreen.create(width, screen.h, screen.bytesPerPixel);
Graphics::Surface screen;
screen.create(w, h, 2);
uint8 *dst = (uint8*)newscreen.getBasePtr((320 - screenWidth) / 2, 0);
uint8 *src = (uint8*)screen.getBasePtr(0, 0);
uint16 height = screen.h;
for (uint y = 0; y < screen.h; ++y) {
for (uint x = 0; x < screen.w; ++x) {
byte r, g, b;
r = palette[pixels[y * w + x] * 3];
g = palette[pixels[y * w + x] * 3 + 1];
b = palette[pixels[y * w + x] * 3 + 2];
while (height--) {
memcpy(dst, src, screen.pitch);
dst += newscreen.pitch;
src += screen.pitch;
((uint16 *)screen.pixels)[y * screen.w + x] = RGBToColor<ColorMasks<565> >(r, g, b);
}
screen.free();
screen = newscreen;
} else if (screenWidth == 720) {
// Special case to handle Hercules mode
width = 640;
screenHeight = 400;
// cut off menu and so on..
Graphics::Surface newscreen;
newscreen.create(width, 400, screen.bytesPerPixel);
uint8 *dst = (uint8*)newscreen.getBasePtr(0, (400 - 240) / 2);
uint8 *src = (uint8*)screen.getBasePtr(41, 28);
for (int y = 0; y < 240; ++y) {
memcpy(dst, src, 640 * screen.bytesPerPixel);
dst += newscreen.pitch;
src += screen.pitch;
}
screen.free();
screen = newscreen;
}
uint16 newHeight = !(screenHeight % 240) ? kThumbnailHeight2 : kThumbnailHeight1;
int gBitFormatBackUp = gBitFormat;
gBitFormat = 565;
surf->create(kThumbnailWidth, newHeight, sizeof(uint16));
createThumbnail((const uint8*)screen.pixels, width * sizeof(uint16), (uint8*)surf->pixels, surf->pitch, width, screenHeight);
gBitFormat = gBitFormatBackUp;
screen.free();
return true;
return createThumbnail(*surf, screen);
}