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STARK: Use the yuv to rgb conversion routine from common code

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This commit is contained in:
Bastien Bouclet 2015-01-11 09:23:36 +01:00
parent f1ab0b6d8f
commit 791ac240d5
1 changed files with 5 additions and 10 deletions
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15
engines/stark/xmg.cpp
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@ -24,6 +24,7 @@
#include "engines/stark/debug.h"
#include "engines/stark/gfx/driver.h"
#include "graphics/conversion.h"
#include "graphics/pixelformat.h"
#include "graphics/surface.h"
#include "common/stream.h"
@ -127,12 +128,6 @@ Graphics::Surface *XMGDecoder::decodeImage(Common::ReadStream *stream) {
return surface;
}
inline static void YUV2RGB(byte y, byte u, byte v, byte &r, byte &g, byte &b) {
r = CLIP<int>(y + ((1357 * (v - 128)) >> 10), 0, 255);
g = CLIP<int>(y - (( 691 * (v - 128)) >> 10) - ((333 * (u - 128)) >> 10), 0, 255);
b = CLIP<int>(y + ((1715 * (u - 128)) >> 10), 0, 255);
}
void XMGDecoder::processYCrCb() {
byte y0, y1, y2, y3;
byte cr, cb;
@ -146,16 +141,16 @@ void XMGDecoder::processYCrCb() {
byte r, g, b;
YUV2RGB(y0, cb, cr, r, g, b);
Graphics::YUV2RGB(y0, cb, cr, r, g, b);
_pixels[0] = (255 << 24) + (b << 16) + (g << 8) + r;
YUV2RGB(y1, cb, cr, r, g, b);
Graphics::YUV2RGB(y1, cb, cr, r, g, b);
_pixels[1] = (255 << 24) + (b << 16) + (g << 8) + r;
YUV2RGB(y2, cb, cr, r, g, b);
Graphics::YUV2RGB(y2, cb, cr, r, g, b);
_pixels[_scanLen + 0] = (255 << 24) + (b << 16) + (g << 8) + r;
YUV2RGB(y3, cb, cr, r, g, b);
Graphics::YUV2RGB(y3, cb, cr, r, g, b);
_pixels[_scanLen + 1] = (255 << 24) + (b << 16) + (g << 8) + r;
}