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GRAPHICS: Add TV scaler plugin

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This commit is contained in:
Eric Culp 2012-06-13 15:02:44 -04:00 committed by Filippos Karapetis
parent 7fd8107c76
commit a3a9736754
5 changed files with 137 additions and 34 deletions
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1
base/plugins.cpp
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@ -172,6 +172,7 @@ public:
LINK_PLUGIN(SUPERSAI)
LINK_PLUGIN(SUPEREAGLE)
LINK_PLUGIN(DOTMATRIX)
LINK_PLUGIN(TV)
#endif
return pl;

3
graphics/module.mk
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@ -91,7 +91,8 @@ MODULE_OBJS += \
scaler/downscaler.o \
scaler/scale2x.o \
scaler/scale3x.o \
scaler/scalebit.o
scaler/scalebit.o \
scaler/tv.o
ifdef USE_ARM_SCALER_ASM
MODULE_OBJS += \

33
graphics/scaler.cpp
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@ -79,39 +79,6 @@ void AdvMame3x(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPi
scale(3, dstPtr, dstPitch, srcPtr - srcPitch, srcPitch, 2, width, height);
}
template<typename ColorMask>
void TV2xTemplate(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch,
int width, int height) {
const uint32 nextlineSrc = srcPitch / sizeof(uint16);
const uint16 *p = (const uint16 *)srcPtr;
const uint32 nextlineDst = dstPitch / sizeof(uint16);
uint16 *q = (uint16 *)dstPtr;
while (height--) {
for (int i = 0, j = 0; i < width; ++i, j += 2) {
uint16 p1 = *(p + i);
uint32 pi;
pi = (((p1 & ColorMask::kRedBlueMask) * 7) >> 3) & ColorMask::kRedBlueMask;
pi |= (((p1 & ColorMask::kGreenMask) * 7) >> 3) & ColorMask::kGreenMask;
*(q + j) = p1;
*(q + j + 1) = p1;
*(q + j + nextlineDst) = (uint16)pi;
*(q + j + nextlineDst + 1) = (uint16)pi;
}
p += nextlineSrc;
q += nextlineDst << 1;
}
}
void TV2x(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height) {
if (gBitFormat == 565)
TV2xTemplate<Graphics::ColorMasks<565> >(srcPtr, srcPitch, dstPtr, dstPitch, width, height);
else
TV2xTemplate<Graphics::ColorMasks<555> >(srcPtr, srcPitch, dstPtr, dstPitch, width, height);
}
static inline uint16 DOT_16(const uint16 *dotmatrix, uint16 c, int j, int i) {
return c - ((c >> 2) & dotmatrix[((j & 3) << 2) + (i & 3)]);

87
graphics/scaler/tv.cpp Normal file
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@ -0,0 +1,87 @@
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 "graphics/scaler/tv.h"
#include "graphics/scaler.h"
#include "graphics/colormasks.h"
TVPlugin::TVPlugin() {
_factor = 2;
_factors.push_back(2);
}
void TVPlugin::initialize(Graphics::PixelFormat format) {
_format = format;
}
void TVPlugin::scale(const uint8 *srcPtr, uint32 srcPitch,
uint8 *dstPtr, uint32 dstPitch, int width, int height, int x, int y) {
if (_format.gLoss == 2)
scaleIntern<Graphics::ColorMasks<565> >(srcPtr, srcPitch, dstPtr, dstPitch, width, height);
else
scaleIntern<Graphics::ColorMasks<555> >(srcPtr, srcPitch, dstPtr, dstPitch, width, height);
}
uint TVPlugin::increaseFactor() {
return _factor;
}
uint TVPlugin::decreaseFactor() {
return _factor;
}
const char *TVPlugin::getName() const {
return "tv";
}
const char *TVPlugin::getPrettyName() const {
return "TV";
}
template <typename ColorMask>
void TVPlugin::scaleIntern(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch,
int width, int height) {
const uint32 nextlineSrc = srcPitch / sizeof(uint16);
const uint16 *p = (const uint16 *)srcPtr;
const uint32 nextlineDst = dstPitch / sizeof(uint16);
uint16 *q = (uint16 *)dstPtr;
while (height--) {
for (int i = 0, j = 0; i < width; ++i, j += 2) {
uint16 p1 = *(p + i);
uint32 pi;
pi = (((p1 & ColorMask::kRedBlueMask) * 7) >> 3) & ColorMask::kRedBlueMask;
pi |= (((p1 & ColorMask::kGreenMask) * 7) >> 3) & ColorMask::kGreenMask;
*(q + j) = p1;
*(q + j + 1) = p1;
*(q + j + nextlineDst) = (uint16)pi;
*(q + j + nextlineDst + 1) = (uint16)pi;
}
p += nextlineSrc;
q += nextlineDst << 1;
}
}
REGISTER_PLUGIN_STATIC(TV, PLUGIN_TYPE_SCALER, TVPlugin);

47
graphics/scaler/tv.h Normal file
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@ -0,0 +1,47 @@
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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.
*/
#ifndef GRAPHICS_SCALER_TV_H
#define GRAPHICS_SCALER_TV_H
#include "graphics/scalerplugin.h"
class TVPlugin : public ScalerPluginObject {
public:
TVPlugin();
virtual void initialize(Graphics::PixelFormat format);
virtual void scale(const uint8 *srcPtr, uint32 srcPitch,
uint8 *dstPtr, uint32 dstPitch, int width, int height, int x, int y);
virtual uint increaseFactor();
virtual uint decreaseFactor();
virtual uint getFactor() const { return _factor; }
virtual bool canDrawCursor() const { return false; }
virtual uint extraPixels() const { return 0; }
virtual const char *getName() const;
virtual const char *getPrettyName() const;
private:
template <typename ColorMask>
void scaleIntern(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr,
uint32 dstPitch, int width, int height);
};
#endif