1 files changed, 148 insertions, 0 deletions
diff --git a/chalk/chalkcolor/kis_u16_base_colorspace.cpp b/chalk/chalkcolor/kis_u16_base_colorspace.cpp
new file mode 100644
index 000000000..a735e35ce
--- /dev/null
+++ b/chalk/chalkcolor/kis_u16_base_colorspace.cpp
@@ -0,0 +1,148 @@
+/*
+ *  Copyright (c) 2005 Boudewijn Rempt <boud@valdyas.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+#include "kdebug.h"
+
+#include "kis_global.h"
+#include "kis_abstract_colorspace.h"
+#include "kis_integer_maths.h"
+#include "kis_u16_base_colorspace.h"
+
+
+TQ_UINT8 KisU16BaseColorSpace::getAlpha(const TQ_UINT8 * U8_pixel) const
+{
+    if (m_alphaPos < 0) return OPACITY_OPAQUE;
+
+    U8_pixel+= m_alphaPos;
+
+    const TQ_UINT16 *pixel = reinterpret_cast<const TQ_UINT16 *>(U8_pixel);
+    return UINT16_TO_UINT8(*pixel);
+}
+
+
+void KisU16BaseColorSpace::setAlpha(TQ_UINT8 *U8_pixel, TQ_UINT8 alpha, TQ_INT32 nPixels) const
+{
+    if (m_alphaPos < 0) return;
+    TQ_INT32 psize = pixelSize();
+
+
+    while (nPixels > 0) {
+
+        TQ_UINT16 *pixel = reinterpret_cast<TQ_UINT16 *>(U8_pixel + m_alphaPos);
+        pixel[0] = UINT8_TO_UINT16(alpha);
+
+        --nPixels;
+        U8_pixel += psize;
+    }
+}
+
+void KisU16BaseColorSpace::multiplyAlpha(TQ_UINT8 *U8_pixel, TQ_UINT8 U8_alpha, TQ_INT32 nPixels)
+{
+    if (m_alphaPos < 0) return;
+
+    TQ_INT32 psize = pixelSize();
+    TQ_UINT16 alpha = UINT8_TO_UINT16(U8_alpha);
+
+    while (nPixels > 0) {
+
+        TQ_UINT16 *pixelAlpha = reinterpret_cast<TQ_UINT16 *>(U8_pixel + m_alphaPos);
+        *pixelAlpha = UINT16_MULT(*pixelAlpha, alpha);
+
+        --nPixels;
+        U8_pixel += psize;
+    }
+}
+
+void KisU16BaseColorSpace::applyAlphaU8Mask(TQ_UINT8 * U8_pixel, TQ_UINT8 * alpha8, TQ_INT32 nPixels)
+{
+    if (m_alphaPos < 0) return;
+
+    TQ_INT32 psize = pixelSize();
+
+    while (nPixels--) {
+
+        // Go to the alpha position (which is given in bytes from the start of the pixel,
+        // and cast to short.
+
+        TQ_UINT16 *pixelAlpha = reinterpret_cast<TQ_UINT16 *>(U8_pixel + m_alphaPos);
+        *pixelAlpha = UINT8_MULT(*pixelAlpha, *alpha8);
+
+        ++alpha8;
+        U8_pixel += psize;
+
+    }
+}
+
+void KisU16BaseColorSpace::applyInverseAlphaU8Mask(TQ_UINT8 * U8_pixels, TQ_UINT8 * alpha8, TQ_INT32 nPixels)
+{
+
+    if (m_alphaPos < 0) return;
+
+    TQ_INT32 psize = pixelSize();
+
+
+    while(nPixels--) {
+
+            TQ_UINT16 s_alpha8;
+            TQ_UINT32 p_alpha, s_alpha16;
+
+            TQ_UINT16 *alpha = reinterpret_cast<TQ_UINT16 *>(U8_pixels + m_alphaPos);
+
+            p_alpha = *(alpha);
+            s_alpha8 = MAX_SELECTED - *alpha8;
+            s_alpha16 = UINT8_TO_UINT16(s_alpha8);
+
+            // Go to the alpha position (which is given in bytes from the start of the pixel,
+            // and cast to short.
+
+            alpha[0] = UINT16_MULT(p_alpha, s_alpha16);
+
+            U8_pixels += psize;
+            ++alpha8;
+    }
+}
+
+TQString KisU16BaseColorSpace::channelValueText(const TQ_UINT8 *U8_pixel, TQ_UINT32 channelIndex) const
+{
+    Q_ASSERT(channelIndex < (TQ_UINT32)nChannels());
+    const TQ_UINT16 *pixel = reinterpret_cast<const TQ_UINT16 *>(U8_pixel);
+    TQ_UINT32 channelPosition = channels()[channelIndex]->pos() / sizeof(TQ_UINT16);
+
+    return TQString().setNum(pixel[channelPosition]);
+}
+
+TQString KisU16BaseColorSpace::normalisedChannelValueText(const TQ_UINT8 *U8_pixel, TQ_UINT32 channelIndex) const
+{
+    Q_ASSERT(channelIndex < (TQ_UINT32)nChannels());
+    const TQ_UINT16 *pixel = reinterpret_cast<const TQ_UINT16 *>(U8_pixel);
+    TQ_UINT32 channelPosition = m_channels[channelIndex]->pos() / sizeof(TQ_UINT16);
+
+    return TQString().setNum(100.0 * static_cast<float>(pixel[channelPosition]) / UINT16_MAX);
+}
+
+TQ_UINT8 KisU16BaseColorSpace::scaleToU8(const TQ_UINT8 * U8_pixel, TQ_INT32 channelPos)
+{
+    const TQ_UINT16 *pixel = reinterpret_cast<const TQ_UINT16 *>(U8_pixel);
+    return UINT16_TO_UINT8(pixel[channelPos]);
+}
+
+TQ_UINT16 KisU16BaseColorSpace::scaleToU16(const TQ_UINT8 * U8_pixel, TQ_INT32 channelPos)
+{
+    const TQ_UINT16 *pixel = reinterpret_cast<const TQ_UINT16 *>(U8_pixel);
+    return pixel[channelPos];
+}
+