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use hqx based on original

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This commit is contained in:
Tim Felgentreff 2020-04-20 16:36:03 +02:00
parent a671773dd2
commit b25b4eccb6
43 changed files with 13464 additions and 6763 deletions

9
CMakeLists.txt
View file

@ -55,7 +55,7 @@ include_directories(
src/include
src/guichan/include
src/guichan/include/guichan
src/third_party/hqx/include
src/third_party/
${CMAKE_CURRENT_BINARY_DIR}
)
@ -340,9 +340,10 @@ set(video_SRCS
src/video/video.cpp
)
set(hqx_SRCS
src/third_party/hqx/source/HQx.cc
src/third_party/hqx/source/HQ2x.cc
src/third_party/hqx/source/HQ3x.cc
src/third_party/hqx/src/init.c
src/third_party/hqx/src/hq2x.c
src/third_party/hqx/src/hq3x.c
src/third_party/hqx/src/hq4x.c
)
source_group(video FILES ${video_SRCS} ${hqx_SRCS})

1
src/include/video.h
View file

@ -214,6 +214,7 @@ extern void* Epx_Scale2x_AdvMame2x_Scaler(SDL_Surface *pixels);
extern void* Scale3x_AdvMame3x_Scaler(SDL_Surface *pixels);
extern void* Hq2x_Scaler(SDL_Surface *pixels);
extern void* Hq3x_Scaler(SDL_Surface *pixels);
extern void* Hq4x_Scaler(SDL_Surface *pixels);
class CVideo
{

3
src/stratagus/stratagus.cpp
View file

@ -615,6 +615,9 @@ void ParseCommandLine(int argc, char **argv, Parameters &parameters)
} else if (!strcmp(optarg, "hq3x")) {
Video.Scale = 3;
Video.Scaler = Hq3x_Scaler;
} else if (!strcmp(optarg, "hq4x")) {
Video.Scale = 4;
Video.Scaler = Hq4x_Scaler;
}
continue;
case -1:

22
src/third_party/hqx/.gitignore vendored Normal file
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@ -0,0 +1,22 @@
/autom4te.cache
/autoconf
aclocal.m4
*.o
*.lo
*.a
*.la
.dirstamp
*.pc
.deps
.libs
Makefile.in
configure
config.log
config.status
libtool
Makefile
/hqx

5
src/third_party/hqx/AUTHORS vendored Normal file
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@ -0,0 +1,5 @@
Maxim Stepin - Creator of hqx filter
Cameron Zemek - Package maintainer. Added 24bit color support.
Francois Gannaz - Added transparency support.

27
src/third_party/hqx/CMakeLists.txt vendored
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@ -1,27 +0,0 @@
project(hqx)
cmake_minimum_required(VERSION 2.8)
include_directories(
"include")
file(GLOB HQX_SOURCES
"source/HQx.cc"
"source/HQ2x.cc"
"source/HQ3x.cc")
add_library(hqx ${HQX_SOURCES})
set_target_properties(hqx PROPERTIES
OUTPUT_NAME "hqx"
ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
PREFIX "lib" )
add_executable(test "source/main.cc")
target_link_libraries(test hqx)
set_target_properties(test PROPERTIES
OUTPUT_NAME "test"
ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}" )

502
src/third_party/hqx/COPYING vendored Normal file
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@ -0,0 +1,502 @@
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13
src/third_party/hqx/ChangeLog vendored Normal file
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@ -0,0 +1,13 @@
2010-03-31 Cameron Zemek <grom@zeminvaders.net>
* *.c: Changed to use stdint.h for fixed width integer types
* common.h: Changed interpolate functions to work with 24bit color
* init.c: Changed RGBtoYUV table to convert 24bit color values
* hqx.c: Created command line tool that uses DevIL
2011-12-05 Cameron Zemek <grom@zeminvaders.net>
* Thanks for this change go to anbaricforce
* hqx.h: Added declarations for row byte versions
* hq*x.c: Added version of function that takes row bytes
2011-12-05 Cameron Zemek <grom@zeminvaders.net>, Francois Gannaz <mytskine@gmail.com>
* Added transparency support

368
src/third_party/hqx/INSTALL vendored Normal file
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@ -0,0 +1,368 @@
Installation Instructions
*************************
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'-V'
Print the version of Autoconf used to generate the 'configure'
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'--cache-file=FILE'
Enable the cache: use and save the results of the tests in FILE,
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'--config-cache'
'-C'
Alias for '--cache-file=config.cache'.
'--quiet'
'--silent'
'-q'
Do not print messages saying which checks are being made. To
suppress all normal output, redirect it to '/dev/null' (any error
messages will still be shown).
'--srcdir=DIR'
Look for the package's source code in directory DIR. Usually
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'--prefix=DIR'
Use DIR as the installation prefix. *note Installation Names:: for
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installation locations.
'--no-create'
'-n'
Run the configure checks, but stop before creating any output
files.
'configure' also accepts some other, not widely useful, options. Run
'configure --help' for more details.

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ACLOCAL_AMFLAGS = -I autoconf/m4
pkgconfigdir = ${libdir}/pkgconfig
pkgconfig_DATA = hqx.pc
EXTRA_DIST = README.md
bin_PROGRAMS = hqx
lib_LTLIBRARIES = libhqx.la
libhqx_la_SOURCES = \
src/init.c \
src/hq2x.c \
src/hq3x.c \
src/hq4x.c \
src/common.h
libhqx_la_LDFLAGS = -no-undefined -version-info @HQX_LTVERSION@
include_HEADERS = src/hqx.h
hqx_SOURCES = src/hqx.c
hqx_CFLAGS = $(IL_CFLAGS) -I.
hqx_LDADD = libhqx.la $(IL_LIBS)

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These are just highlights of what was changed during each release. For a more
in-depth version of what was changed, please look at the ChangeLog.
1.0
---
- Added support for 24 bit color
- Created command line tool that uses DevIL library for loading/saving images
- Use autotools for build system

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hqx Library README
==================
Introduction
------------
hqx is a fast, high-quality magnification filter designed for pixel art.
Install
-------
NOTE: DevIL library and development headers are required.
./configure
make && make install
For more information refer to INSTALL.
Usage
-----
hqx -s scaleBy input output
Where scaleBy is either 2, 3 or 4
For example:
hqx -s 4 test.png out.png
Example
-------
#include <stdint.h>
#include <hqx.h>
uint32_t *src; // Pointer to source bitmap in RGB format
size_t width, height; // Size of source bitmap
/*
* Code to init src, width & height
*/
uint32_t *dest = (uint32_t *) malloc(width * 4 * height * 4 * sizeof(uint32_t));
hqxInit();
hq4x_32(src, dest, width, height);
Implementation
--------------
The first step is an analysis of the 3x3 area of the source pixel. At first, we
calculate the color difference between the central pixel and its 8 nearest
neighbors. Then that difference is compared to a predefined threshold, and these
pixels are sorted into two categories: "close" and "distant" colored. There are
8 neighbors, so we are getting 256 possible combinations.
For the next step, which is filtering, a lookup table with 256 entries is used,
one entry per each combination of close/distant colored neighbors. Each entry
describes how to mix the colors of the source pixels from 3x3 area to get
interpolated pixels of the filtered image.
The present implementation is using YUV color space to calculate color
differences, with more tolerance on Y (brightness) component, then on color
components U and V. That color space conversion is quite easy to implement if
the format of the source image is 16 bit per pixel, using a simple lookup table.
It is also possible to calculate the color differences and compare them to a
threshold very fast, using MMX instructions.
Creating a lookup table was the most difficult part - for each combination the
most probable vector representation of the area has to be determined, with the
idea of edges between the different colored areas of the image to be preserved,
with the edge direction to be as close to a correct one as possible. That vector
representation is then rasterised with higher (3x) resolution using
anti-aliasing, and the result is stored in the lookup table.
The filter was not designed for photographs, but for images with clear sharp
edges, like line graphics or cartoon sprites. It was also designed to be fast
enough to process 256x256 images in real-time.

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C++ implementation of hq2x and hq3x scaling algorithms. This implementation was made using [DOSBOX](http://www.dosbox.com/) and [hqxSharp](https://bitbucket.org/Tamschi/hqxsharp) as reference.
hqx Library README
==================
## Algorithm
# Introduction
hqx ("hq" stands for "high quality" and "x" stands for magnification) is one of the pixel art scaling algorithms developed by Maxim Stepin, used in emulators such as Nestopia, bsnes, ZSNES, Snes9x, FCE Ultra and many more. There are 3 hqx filters: hq2x, hq3x and hq4x which magnify by factor of 2, 3 and 4 respectively.
The hqx algorithms ("hq" stands for "high quality" and "x" stands for magnification) is a scaling algorithms created by Maxim Stepin and it's mostly used in emulators.
# Build
The algorithm description from [Wikipedia](https://en.wikipedia.org/wiki/Hqx):
autoreconf -vi
> First, the color of each of the 8 pixels around the source pixel is compared to the color of the source pixel. Shapes are detected by checking for pixels of similar color according to a threshold. This gives total of 28 = 256 combinations of similar or dissimilar neighbors. To expand the single pixel into a 2×2, 3×3, or 4×4 block of pixels, the arrangement of neighbors is looked up in a predefined table which contains the necessary interpolation patterns.
# Install
NOTE: [DevIL](http://openil.sf.net/) library and development headers are required.
For more information, check out the archived version of the original Maxim Stepin website: [HiEnd3D - Demos & Docs](https://web.archive.org/web/20131105130843/http://www.hiend3d.com/demos.html).
./configure
make && make install
## Versions
For more information refer to INSTALL.
There are two "versions" of the HQx algorithm: one to produce a sharper output and another for a smoothed output. Check out the file `HQx.cc` for more information.
# Usage
hqx -s scaleBy input output
Where scaleBy is either 2, 3 or 4
## Samples
For example:
```
hqx -s 4 test.png out.png
```
Original test image:
# Example
```c
#include <stdint.h>
#include <hqx.h>
![Original](samples/test-image.bmp)
uint32_t *src; // Pointer to source bitmap in RGB format
size_t width, height; // Size of source bitmap
Test image scaled by 2x (smoothed version):
/*
* Code to init src, width & height
*/
![Original](samples/test-image-hq2x.bmp)
uint32_t *dest = (uint32_t *) malloc(width * 4 * height * 4 * sizeof(uint32_t));
hqxInit();
hq4x_32(src, dest, width, height);
```
Test image scaled by 3x (smoothed version):
# Implementation
The first step is an analysis of the 3x3 area of the source pixel. At first, we
calculate the color difference between the central pixel and its 8 nearest
neighbors. Then that difference is compared to a predefined threshold, and these
pixels are sorted into two categories: "close" and "distant" colored. There are
8 neighbors, so we are getting 256 possible combinations.
![Original](samples/test-image-hq3x.bmp)
For the next step, which is filtering, a lookup table with 256 entries is used,
one entry per each combination of close/distant colored neighbors. Each entry
describes how to mix the colors of the source pixels from 3x3 area to get
interpolated pixels of the filtered image.
Prince of Persia 1 screenshot:
The present implementation is using YUV color space to calculate color
differences, with more tolerance on Y (brightness) component, then on color
components U and V. That color space conversion is quite easy to implement if
the format of the source image is 16 bit per pixel, using a simple lookup table.
It is also possible to calculate the color differences and compare them to a
threshold very fast, using MMX instructions.
![Original](samples/prince.bmp)
Creating a lookup table was the most difficult part - for each combination the
most probable vector representation of the area has to be determined, with the
idea of edges between the different colored areas of the image to be preserved,
with the edge direction to be as close to a correct one as possible. That vector
representation is then rasterised with higher (3x) resolution using
anti-aliasing, and the result is stored in the lookup table.
Prince of Persia 1 screenshot scaled by 2x (sharper version):
![Original](samples/prince-hq2x.bmp)
The filter was not designed for photographs, but for images with clear sharp
edges, like line graphics or cartoon sprites. It was also designed to be fast
enough to process 256x256 images in real-time.

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AC_INIT([hqx], [1.2], [https://github.com/grom358/hqx/issues],
[hqx], [https://github.com/grom358/hqx])
AC_CONFIG_AUX_DIR([autoconf])
AC_CONFIG_MACRO_DIR([autoconf/m4])
AM_INIT_AUTOMAKE([1.11 foreign subdir-objects -Wall])
AM_SILENT_RULES([yes])
AC_LANG([C])
AC_PROG_CPP
AC_PROG_CC
AM_PROG_AR
AC_C_INLINE
AC_C_BIGENDIAN
LT_INIT([win32-dll])
HQX_LTVERSION=1:0:0
AC_SUBST([HQX_LTVERSION])
PKG_CHECK_MODULES([IL], [IL], ,
AC_MSG_ERROR([DevIL (http://openil.sf.net) is required.]))
AC_ARG_ENABLE([debug],
AS_HELP_STRING([--enable-debug], [Compile a debug version of the library]))
AS_IF([test "x$enable_debug" = "xyes"],
[CFLAGS="-Wall -g -O0"],
[CFLAGS="-O3"])
AC_CONFIG_FILES([Makefile hqx.pc])
AC_OUTPUT

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libhqx (1.1) unstable; urgency=low
* Initial Release.
-- James E. Flemer <jflemer@alum.rpi.edu> Mon, 19 Nov 2012 17:36:32 -0700

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8

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Source: libhqx
Priority: optional
Maintainer: James E. Flemer <jflemer@alum.rpi.edu>
Build-Depends: debhelper (>= 8.0.0), autotools-dev, libdevil-dev
Standards-Version: 3.9.2
Section: graphics
Homepage: http://code.google.com/p/hqx/
Vcs-Svn: http://hqx.googlecode.com/svn/trunk/
Vcs-Browser: http://code.google.com/p/hqx/source/browse/#svn%2Ftrunk
Package: libhqx
Section: libs
Architecture: any
Depends: ${shlibs:Depends}, ${misc:Depends}
Description: fast, high-quality magnification filter for pixel art
hqx ("hq" stands for "high quality" and "x" stands for magnification)
is one of the pixel art scaling algorithms developed by Maxim Stepin,
used in emulators such as Nestopia, bsnes, ZSNES, Snes9x, FCE Ultra
and many more. There are 3 hqx filters: hq2x, hq3x and hq4x which
magnify by factor of 2, 3 and 4 respectively.
.
libhqx shared library
Package: libhqx-dev
Section: libdevel
Architecture: any
Depends: libhqx (= ${binary:Version})
Description: fast, high-quality magnification filter for pixel art
hqx ("hq" stands for "high quality" and "x" stands for magnification)
is one of the pixel art scaling algorithms developed by Maxim Stepin,
used in emulators such as Nestopia, bsnes, ZSNES, Snes9x, FCE Ultra
and many more. There are 3 hqx filters: hq2x, hq3x and hq4x which
magnify by factor of 2, 3 and 4 respectively.
.
libhqx headers and static library
Package: libhqx-bin
Section: graphics
Architecture: any
Depends: libhqx (= ${binary:Version}), ${shlibs:Depends}, ${misc:Depends}
Description: fast, high-quality magnification filter for pixel art
hqx ("hq" stands for "high quality" and "x" stands for magnification)
is one of the pixel art scaling algorithms developed by Maxim Stepin,
used in emulators such as Nestopia, bsnes, ZSNES, Snes9x, FCE Ultra
and many more. There are 3 hqx filters: hq2x, hq3x and hq4x which
magnify by factor of 2, 3 and 4 respectively.
.
hqx command line tool

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Format: http://dep.debian.net/deps/dep5
Upstream-Name: libhqx
Source: http://code.google.com/p/hqx/
Files: *
Copyright: 2003 Maxim Stepin <maxst@hiend3d.com>
2010 Cameron Zemek <grom@zeminvaders.net>
2011 Francois Gannaz <mytskine@gmail.com>
License: LGPL-2.1+
Files: debian/*
Copyright: 2012 James E. Flemer <jflemer@alum.rpi.edu>
License: LGPL-2.1+
License: LGPL-2.1+
This package is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
.
This package 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
Lesser General Public License for more details.
.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
.
On Debian systems, the complete text of the GNU Lesser General
Public License can be found in "/usr/share/common-licenses/LGPL-2.1".
# Please also look if there are files or directories which have a
# different copyright/license attached and list them here.

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AUTHORS
COPYING
NEWS
README

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usr/bin

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usr/bin/*

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usr/lib
usr/include
usr/include/hqx

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usr/include/hqx/*
usr/lib/lib*.a
usr/lib/lib*.so

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usr/lib

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usr/lib/lib*.so.*

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#!/usr/bin/make -f
# -*- makefile -*-
# Uncomment this to turn on verbose mode.
#export DH_VERBOSE=1
%:
dh $@
override_dh_auto_configure:
dh_auto_configure -- --includedir=/usr/include/hqx

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prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
includedir=@includedir@
Name: @PACKAGE_TARNAME@
Description: Fast, high-quality magnification filter designed for pixel art
Version: @PACKAGE_VERSION@
URL: @PACKAGE_URL@
Requires.private: IL
Cflags: -I${includedir}
Libs: -L${libdir} -lhqx

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/*
* Copyright 2016 Bruno Ribeiro
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef HQX_HQ2X_HH
#define HQX_HQ2X_HH
#include <stdint.h>
#include <hqx/HQx.hh>
class HQ2x : public HQx
{
public:
HQ2x();
~HQ2x();
uint32_t *resize(
const uint32_t *image,
uint32_t width,
uint32_t height,
uint32_t *output,
uint32_t trY = 0x30,
uint32_t trU = 0x07,
uint32_t trV = 0x06,
uint32_t trA = 0x50,
bool wrapX = false,
bool wrapY = false ) const;
};
#endif // HQX_HQ2X_HH

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/*
* Copyright 2016 Bruno Ribeiro
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef HQX_HQ3X_HH
#define HQX_HQ3X_HH
#include <stdint.h>
#include <hqx/HQx.hh>
class HQ3x : public HQx
{
public:
HQ3x();
~HQ3x();
uint32_t *resize(
const uint32_t *image,
uint32_t width,
uint32_t height,
uint32_t *output,
uint32_t trY = 0x30,
uint32_t trU = 0x07,
uint32_t trV = 0x06,
uint32_t trA = 0x50,
bool wrapX = false,
bool wrapY = false ) const;
};
#endif // HQX_HQ3X_HH

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/*
* Copyright 2016 Bruno Ribeiro
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef HQX_HQX_HH
#define HQX_HQX_HH
#include <stdint.h>
#define MASK_RB 0x00FF00FF
#define MASK_G 0x0000FF00
#define MASK_A 0xFF000000
/**
* @brief Mixes two colors using the given weights.
*/
#define HQX_MIX_2(C0,C1,W0,W1) \
((((C0 & MASK_RB) * W0 + (C1 & MASK_RB) * W1) / (W0 + W1)) & MASK_RB) | \
((((C0 & MASK_G) * W0 + (C1 & MASK_G) * W1) / (W0 + W1)) & MASK_G) | \
((((((C0 & MASK_A) >> 8) * W0 + ((C1 & MASK_A) >> 8) * W1) / (W0 + W1)) << 8) & MASK_A)
/**
* @brief Mixes three colors using the given weights.
*/
#define HQX_MIX_3(C0,C1,C2,W0,W1,W2) \
((((C0 & MASK_RB) * W0 + (C1 & MASK_RB) * W1 + (C2 & MASK_RB) * W2) / (W0 + W1 + W2)) & MASK_RB) | \
((((C0 & MASK_G) * W0 + (C1 & MASK_G) * W1 + (C2 & MASK_G) * W2) / (W0 + W1 + W2)) & MASK_G) | \
((((((C0 & MASK_A) >> 8) * W0 + ((C1 & MASK_A) >> 8) * W1 + ((C2 & MASK_A) >> 8) * W2) / (W0 + W1 + W2)) << 8) & MASK_A)
#define MIX_00_4 *output = w[4];
#define MIX_00_4_0_3_1 *output = HQX_MIX_2(w[4],w[0],3U,1U);
#define MIX_00_4_3_3_1 *output = HQX_MIX_2(w[4],w[3],3U,1U);
#define MIX_00_4_1_3_1 *output = HQX_MIX_2(w[4],w[1],3U,1U);
#define MIX_00_3_1_1_1 *output = HQX_MIX_2(w[3],w[1],1U,1U);
#define MIX_00_4_3_1_2_1_1 *output = HQX_MIX_3(w[4],w[3],w[1],2U,1U,1U);
#define MIX_00_4_3_1_2_7_7 *output = HQX_MIX_3(w[4],w[3],w[1],2U,7U,7U);
#define MIX_00_4_0_1_2_1_1 *output = HQX_MIX_3(w[4],w[0],w[1],2U,1U,1U);
#define MIX_00_4_0_3_2_1_1 *output = HQX_MIX_3(w[4],w[0],w[3],2U,1U,1U);
#define MIX_00_4_1_3_5_2_1 *output = HQX_MIX_3(w[4],w[1],w[3],5U,2U,1U);
#define MIX_00_4_3_1_5_2_1 *output = HQX_MIX_3(w[4],w[3],w[1],5U,2U,1U);
#define MIX_00_4_3_1_6_1_1 *output = HQX_MIX_3(w[4],w[3],w[1],6U,1U,1U);
#define MIX_00_4_3_1_2_3_3 *output = HQX_MIX_3(w[4],w[3],w[1],2U,3U,3U);
#define MIX_00_4_3_1_e_1_1 *output = HQX_MIX_3(w[4],w[3],w[1],14U,1U,1U);
#define MIX_01_4 *(output + 1) = w[4];
#define MIX_01_4_2_3_1 *(output + 1) = HQX_MIX_2(w[4],w[2],3U,1U);
#define MIX_01_4_1_3_1 *(output + 1) = HQX_MIX_2(w[4],w[1],3U,1U);
#define MIX_01_1_4_3_1 *(output + 1) = HQX_MIX_2(w[1],w[4],3U,1U);
#define MIX_01_4_5_3_1 *(output + 1) = HQX_MIX_2(w[4],w[5],3U,1U);
#define MIX_01_4_1_7_1 *(output + 1) = HQX_MIX_2(w[4],w[1],7U,1U);
#define MIX_01_4_1_5_2_1_1 *(output + 1) = HQX_MIX_3(w[4],w[1],w[5],2U,1U,1U);
#define MIX_01_4_2_5_2_1_1 *(output + 1) = HQX_MIX_3(w[4],w[2],w[5],2U,1U,1U);
#define MIX_01_4_2_1_2_1_1 *(output + 1) = HQX_MIX_3(w[4],w[2],w[1],2U,1U,1U);
#define MIX_01_4_5_1_5_2_1 *(output + 1) = HQX_MIX_3(w[4],w[5],w[1],5U,2U,1U);
#define MIX_01_4_1_5_5_2_1 *(output + 1) = HQX_MIX_3(w[4],w[1],w[5],5U,2U,1U);
#define MIX_01_4_1_5_6_1_1 *(output + 1) = HQX_MIX_3(w[4],w[1],w[5],6U,1U,1U);
#define MIX_01_4_1_5_2_3_3 *(output + 1) = HQX_MIX_3(w[4],w[1],w[5],2U,3U,3U);
#define MIX_01_4_1_5_e_1_1 *(output + 1) = HQX_MIX_3(w[4],w[1],w[5],14U,1U,1U);
#define MIX_02_4 *(output + 2) = w[4];
#define MIX_02_4_2_3_1 *(output + 2) = HQX_MIX_2(w[4],w[2],3U,1U);
#define MIX_02_4_1_3_1 *(output + 2) = HQX_MIX_2(w[4],w[1],3U,1U);
#define MIX_02_4_5_3_1 *(output + 2) = HQX_MIX_2(w[4],w[5],3U,1U);
#define MIX_02_4_1_5_2_1_1 *(output + 2) = HQX_MIX_3(w[4],w[1],w[5],2U,1U,1U);
#define MIX_02_4_1_5_2_7_7 *(output + 2) = HQX_MIX_3(w[4],w[1],w[5],2U,7U,7U);
#define MIX_02_1_5_1_1 *(output + 2) = HQX_MIX_2(w[1],w[5],1U,1U);
#define MIX_10_4 *(output + lineSize) = w[4];
#define MIX_10_4_6_3_1 *(output + lineSize) = HQX_MIX_2(w[4],w[6],3U,1U);
#define MIX_10_4_7_3_1 *(output + lineSize) = HQX_MIX_2(w[4],w[7],3U,1U);
#define MIX_10_4_3_3_1 *(output + lineSize) = HQX_MIX_2(w[4],w[3],3U,1U);
#define MIX_10_4_7_3_2_1_1 *(output + lineSize) = HQX_MIX_3(w[4],w[7],w[3],2U,1U,1U);
#define MIX_10_4_6_3_2_1_1 *(output + lineSize) = HQX_MIX_3(w[4],w[6],w[3],2U,1U,1U);
#define MIX_10_4_6_7_2_1_1 *(output + lineSize) = HQX_MIX_3(w[4],w[6],w[7],2U,1U,1U);
#define MIX_10_4_3_7_5_2_1 *(output + lineSize) = HQX_MIX_3(w[4],w[3],w[7],5U,2U,1U);
#define MIX_10_4_7_3_5_2_1 *(output + lineSize) = HQX_MIX_3(w[4],w[7],w[3],5U,2U,1U);
#define MIX_10_4_7_3_6_1_1 *(output + lineSize) = HQX_MIX_3(w[4],w[7],w[3],6U,1U,1U);
#define MIX_10_4_7_3_2_3_3 *(output + lineSize) = HQX_MIX_3(w[4],w[7],w[3],2U,3U,3U);
#define MIX_10_4_7_3_e_1_1 *(output + lineSize) = HQX_MIX_3(w[4],w[7],w[3],14U,1U,1U);
#define MIX_10_4_3_7_1 *(output + lineSize) = HQX_MIX_2(w[4],w[3],7U,1U);
#define MIX_10_3_4_3_1 *(output + lineSize) = HQX_MIX_2(w[3],w[4],3U,1U);
#define MIX_11_4 *(output + lineSize + 1) = w[4];
#define MIX_11_4_8_3_1 *(output + lineSize + 1) = HQX_MIX_2(w[4],w[8],3U,1U);
#define MIX_11_4_5_3_1 *(output + lineSize + 1) = HQX_MIX_2(w[4],w[5],3U,1U);
#define MIX_11_4_7_3_1 *(output + lineSize + 1) = HQX_MIX_2(w[4],w[7],3U,1U);
#define MIX_11_4_5_7_2_1_1 *(output + lineSize + 1) = HQX_MIX_3(w[4],w[5],w[7],2U,1U,1U);
#define MIX_11_4_8_7_2_1_1 *(output + lineSize + 1) = HQX_MIX_3(w[4],w[8],w[7],2U,1U,1U);
#define MIX_11_4_8_5_2_1_1 *(output + lineSize + 1) = HQX_MIX_3(w[4],w[8],w[5],2U,1U,1U);
#define MIX_11_4_7_5_5_2_1 *(output + lineSize + 1) = HQX_MIX_3(w[4],w[7],w[5],5U,2U,1U);
#define MIX_11_4_5_7_5_2_1 *(output + lineSize + 1) = HQX_MIX_3(w[4],w[5],w[7],5U,2U,1U);
#define MIX_11_4_5_7_6_1_1 *(output + lineSize + 1) = HQX_MIX_3(w[4],w[5],w[7],6U,1U,1U);
#define MIX_11_4_5_7_2_3_3 *(output + lineSize + 1) = HQX_MIX_3(w[4],w[5],w[7],2U,3U,3U);
#define MIX_11_4_5_7_e_1_1 *(output + lineSize + 1) = HQX_MIX_3(w[4],w[5],w[7],14U,1U,1U);
#define MIX_12_4 *(output + lineSize + 2) = w[4];
#define MIX_12_4_5_3_1 *(output + lineSize + 2) = HQX_MIX_2(w[4],w[5],3U,1U);
#define MIX_12_4_5_7_1 *(output + lineSize + 2) = HQX_MIX_2(w[4],w[5],7U,1U);
#define MIX_12_5_4_3_1 *(output + lineSize + 2) = HQX_MIX_2(w[5],w[4],3U,1U);
#define MIX_20_4 *(output + lineSize + lineSize) = w[4];
#define MIX_20_4_6_3_1 *(output + lineSize + lineSize) = HQX_MIX_2(w[4],w[6],3U,1U);
#define MIX_20_4_7_3_1 *(output + lineSize + lineSize) = HQX_MIX_2(w[4],w[7],3U,1U);
#define MIX_20_4_3_3_1 *(output + lineSize + lineSize) = HQX_MIX_2(w[4],w[3],3U,1U);
#define MIX_20_4_7_3_2_1_1 *(output + lineSize + lineSize) = HQX_MIX_3(w[4],w[7],w[3],2U,1U,1U);
#define MIX_20_4_7_3_2_7_7 *(output + lineSize + lineSize) = HQX_MIX_3(w[4],w[7],w[3],2U,7U,7U);
#define MIX_20_7_3_1_1 *(output + lineSize + lineSize) = HQX_MIX_2(w[7],w[3],1U,1U);
#define MIX_21_4 *(output + lineSize + lineSize + 1) = w[4];
#define MIX_21_4_7_3_1 *(output + lineSize + lineSize + 1) = HQX_MIX_2(w[4],w[7],3U,1U);
#define MIX_21_4_7_7_1 *(output + lineSize + lineSize + 1) = HQX_MIX_2(w[4],w[7],7U,1U);
#define MIX_21_7_4_3_1 *(output + lineSize + lineSize + 1) = HQX_MIX_2(w[7],w[4],3U,1U);
#define MIX_22_4 *(output + lineSize + lineSize + 2) = w[4];
#define MIX_22_4_8_3_1 *(output + lineSize + lineSize + 2) = HQX_MIX_2(w[4],w[8],3U,1U);
#define MIX_22_4_7_3_1 *(output + lineSize + lineSize + 2) = HQX_MIX_2(w[4],w[7],3U,1U);
#define MIX_22_4_5_3_1 *(output + lineSize + lineSize + 2) = HQX_MIX_2(w[4],w[5],3U,1U);
#define MIX_22_4_5_7_2_1_1 *(output + lineSize + lineSize + 2) = HQX_MIX_3(w[4],w[5],w[7],2U,1U,1U);
#define MIX_22_4_5_7_2_7_7 *(output + lineSize + lineSize + 2) = HQX_MIX_3(w[4],w[5],w[7],2U,7U,7U);
#define MIX_22_5_7_1_1 *(output + lineSize + lineSize + 2) = HQX_MIX_2(w[5],w[7],1U,1U);
class HQx
{
public:
HQx();
virtual ~HQx();
static uint32_t ARGBtoAYUV(
uint32_t value );
virtual uint32_t *resize(
const uint32_t *image,
uint32_t width,
uint32_t height,
uint32_t *output,
uint32_t trY = 0x40,
uint32_t trU = 0x07,
uint32_t trV = 0x06,
uint32_t trA = 0x50,
bool wrapX = false,
bool wrapY = false ) const = 0;
static bool isDifferent(
uint32_t yuv1,
uint32_t yuv2,
uint32_t trY,
uint32_t trU,
uint32_t trV,
uint32_t trA );
};
#endif // HQX_HQX_HH

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/*
* Copyright 2016 Bruno Ribeiro
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <hqx/HQx.hh>
#include <cstdlib>
static const uint32_t AMASK = 0xFF000000;
static const uint32_t YMASK = 0x00FF0000;
static const uint32_t UMASK = 0x0000FF00;
static const uint32_t VMASK = 0x000000FF;
HQx::HQx()
{
// nothing to do
}
HQx::~HQx()
{
// nothing to do
}
uint32_t HQx::ARGBtoAYUV(
uint32_t value )
{
uint32_t A, R, G, B, Y, U, V;
A = value >> 24;
R = (value >> 16) & 0xFF;
G = (value >> 8) & 0xFF;
B = value & 0xFF;
Y = (uint32_t) ( 0.299 * R + 0.587 * G + 0.114 * B);
U = (uint32_t) (-0.169 * R - 0.331 * G + 0.5 * B) + 128;
V = (uint32_t) ( 0.5 * R - 0.419 * G - 0.081 * B) + 128;
return (A << 24) + (Y << 16) + (U << 8) + V;
}
#if (1)
/*
* Use this function for sharper images (good for cartoon style, used by DOSBOX)
*/
bool HQx::isDifferent(
uint32_t color1,
uint32_t color2,
uint32_t trY,
uint32_t trU,
uint32_t trV,
uint32_t trA )
{
color1 = ARGBtoAYUV(color1);
color2 = ARGBtoAYUV(color2);
uint32_t value;
value = abs(int(color1 & YMASK) - int(color2 & YMASK));
if (value > trY) return true;
value = abs(int(color1 & UMASK) - int(color2 & UMASK));
if (value > trU) return true;
value = abs(int(color1 & VMASK) - int(color2 & VMASK));
if (value > trV) return true;
value = abs(int(color1 & AMASK) - int(color2 & AMASK));
if (value > trA) return true;
return false;
}
#else
/*
* Use this function for smoothed images (good for complex graphics)
*/
bool HQx::isDifferent(
uint32_t color1,
uint32_t color2,
uint32_t trY,
uint32_t trU,
uint32_t trV,
uint32_t trA )
{
uint32_t yuv1 = ARGBtoAYUV(color1);
uint32_t yuv2 = ARGBtoAYUV(color2);
return abs(int(yuv1 & YMASK) - int(yuv2 & YMASK)) > trY ||
abs(int(yuv1 & UMASK) - int(yuv2 & UMASK)) > trU ||
abs(int(yuv1 & VMASK) - int(yuv2 & VMASK)) > trV ||
abs(int(yuv1 & AMASK) - int(yuv2 & AMASK)) > trA;
}
#endif

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/*
* Copyright 2016 Bruno Ribeiro
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <hqx/HQ2x.hh>
#include <hqx/HQ3x.hh>
#include <fstream>
#include <cstdlib>
#include <iostream>
#include <ctime>
using std::ifstream;
using std::ofstream;
using std::string;
#pragma pack(push, 1)
struct BitmapHeader
{
uint16_t bfType;
uint32_t bfSize;
uint32_t bfRes1;
uint32_t bfOffBits;
};
struct DibHeader
{
uint32_t biSize;
uint32_t biWidth;
uint32_t biHeight;
uint16_t biPlanes;
uint16_t biBitCount;
uint32_t biCompression;
uint32_t biSizeImage;
uint32_t biXPelsPerMeter;
uint32_t biYPelsPerMeter;
uint32_t biClrUsed;
uint32_t biClrImportant;
};
#pragma pack(pop)
/**
* @brief Saves an Windows Bitmap image (24 BPP).
*/
int main_saveBitmap(
const uint32_t *data,
uint32_t width,
uint32_t height,
const string &fileName )
{
BitmapHeader bh;
DibHeader dh;
uint16_t suffix;
uint32_t zero = 0;
const uint32_t *ptr;
ofstream output(fileName.c_str(), std::ios_base::binary);
if (!output.good()) return -1;
suffix = ((width + 3) & ~0x03) - width;
dh.biSize = sizeof(DibHeader);
dh.biWidth = width;
dh.biHeight = height;
dh.biPlanes = 1;
dh.biBitCount = 24;
dh.biCompression = 0;
dh.biSizeImage = (uint16_t) ( (width*3+suffix)*height );
dh.biXPelsPerMeter = 0x2E23;
dh.biYPelsPerMeter = dh.biXPelsPerMeter;
dh.biClrUsed = 0;
dh.biClrImportant = 0;
bh.bfType = 0x4D42;
bh.bfSize = dh.biSizeImage + 0x0036;
bh.bfRes1 = 0;
bh.bfOffBits = 0x0036;
output.write( (char*) &bh, sizeof(BitmapHeader) );
output.write( (char*) &dh, sizeof(DibHeader) );
ptr = data + (width * height);
for (uint32_t i = 0; i < height; i++)
{
ptr -= width;
for (uint32_t j = 0; j < width; ++j)
output.write( (char*) (ptr + j), 3 );
if (suffix > 0)
output.write( (char*) &zero, suffix );
}
output.close();
return 0;
}
/**
* @brief Loads an Windows Bitmap image (24 BPP).
*/
int main_loadBitmap(
const string &fileName,
uint32_t *&data,
uint16_t &width,
uint16_t &height )
{
BitmapHeader bh;
DibHeader dh;
uint16_t suffix;
uint32_t zero = 0;
uint32_t *ptr;
uint16_t bits;
ifstream input(fileName.c_str(), std::ios_base::binary);
if (!input.good()) return -1;
input.read( (char*) &bh, sizeof(BitmapHeader) );
if (bh.bfType != 0x4D42) return -1;
input.read( (char*) &dh.biSize, sizeof(uint32_t) );
if (dh.biSize != 40) return -1;
input.read( (char*) &dh.biWidth, sizeof(DibHeader) - sizeof(uint32_t) );
width = dh.biWidth;
height = dh.biHeight;
if (dh.biBitCount != 24) return -1;
suffix = ((width + 3) & ~0x03) - width;
ptr = data = new uint32_t[width * height]();
ptr += width * height;
for (uint32_t i = 0; i < height; i++)
{
ptr -= width;
for (uint32_t j = 0; j < width; ++j)
{
input.read( (char*) (ptr + j), 3 );
*(ptr + j) |= 0xFF000000;
}
if (suffix > 0)
input.read( (char*) &zero, suffix );
}
input.close();
return 0;
}
int main(int argc, char **argv )
{
uint32_t factor = 2;
if (argc != 2 && argc != 3) return 1;
if (argc == 3) factor = atoi(argv[2]);
// loads the input image
uint16_t width, height;
uint32_t *image = NULL;
if ( main_loadBitmap(argv[1], image, width, height) != 0) return 1;
std::cout << "Resizing '" << argv[1] << "' [" << width << "x" << height << "] by " <<
factor << 'x' << std::endl;
clock_t t = clock();
// resize the input image using the given scale factor
uint32_t outputSize = (width * factor) * (height * factor);
uint32_t *output = new uint32_t[outputSize]();
HQx *scale;
if (factor == 2)
scale = new HQ2x();
else
scale = new HQ3x();
scale->resize(image, width, height, output);
delete scale;
t = clock() - t;
std::cout << "Processing time: " << t / (CLOCKS_PER_SEC / 1000) << " ms" << std::endl;
// saves the resized image
if ( main_saveBitmap(output, width * factor, height * factor, "output.bmp") != 0 ) return 1;
delete[] image;
delete[] output;
}

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/*
* Copyright (C) 2003 Maxim Stepin ( maxst@hiend3d.com )
*
* Copyright (C) 2010 Cameron Zemek ( grom@zeminvaders.net)
* Copyright (C) 2011 Francois Gannaz <mytskine@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __HQX_COMMON_H_
#define __HQX_COMMON_H_
#include <stdlib.h>
#include <stdint.h>
#define MASK_2 0x0000FF00
#define MASK_13 0x00FF00FF
#define MASK_RGB 0x00FFFFFF
#define MASK_ALPHA 0xFF000000
#define Ymask 0x00FF0000
#define Umask 0x0000FF00
#define Vmask 0x000000FF
#define trY 0x00300000
#define trU 0x00000700
#define trV 0x00000006
/* RGB to YUV lookup table */
extern uint32_t RGBtoYUV[16777216];
static inline uint32_t rgb_to_yuv(uint32_t c)
{
// Mask against MASK_RGB to discard the alpha channel
return RGBtoYUV[MASK_RGB & c];
}
/* Test if there is difference in color */
static inline int yuv_diff(uint32_t yuv1, uint32_t yuv2) {
return (( abs((yuv1 & Ymask) - (yuv2 & Ymask)) > trY ) ||
( abs((yuv1 & Umask) - (yuv2 & Umask)) > trU ) ||
( abs((yuv1 & Vmask) - (yuv2 & Vmask)) > trV ) );
}
static inline int Diff(uint32_t c1, uint32_t c2)
{
return yuv_diff(rgb_to_yuv(c1), rgb_to_yuv(c2));
}
/* Interpolate functions */
static inline uint32_t Interpolate_2(uint32_t c1, int w1, uint32_t c2, int w2, int s)
{
if (c1 == c2) {
return c1;
}
return
(((((c1 & MASK_ALPHA) >> 24) * w1 + ((c2 & MASK_ALPHA) >> 24) * w2) << (24-s)) & MASK_ALPHA) +
((((c1 & MASK_2) * w1 + (c2 & MASK_2) * w2) >> s) & MASK_2) +
((((c1 & MASK_13) * w1 + (c2 & MASK_13) * w2) >> s) & MASK_13);
}
static inline uint32_t Interpolate_3(uint32_t c1, int w1, uint32_t c2, int w2, uint32_t c3, int w3, int s)
{
return
(((((c1 & MASK_ALPHA) >> 24) * w1 + ((c2 & MASK_ALPHA) >> 24) * w2 + ((c3 & MASK_ALPHA) >> 24) * w3) << (24-s)) & MASK_ALPHA) +
((((c1 & MASK_2) * w1 + (c2 & MASK_2) * w2 + (c3 & MASK_2) * w3) >> s) & MASK_2) +
((((c1 & MASK_13) * w1 + (c2 & MASK_13) * w2 + (c3 & MASK_13) * w3) >> s) & MASK_13);
}
static inline void Interp1(uint32_t * pc, uint32_t c1, uint32_t c2)
{
//*pc = (c1*3+c2) >> 2;
*pc = Interpolate_2(c1, 3, c2, 1, 2);
}
static inline void Interp2(uint32_t * pc, uint32_t c1, uint32_t c2, uint32_t c3)
{
//*pc = (c1*2+c2+c3) >> 2;
*pc = Interpolate_3(c1, 2, c2, 1, c3, 1, 2);
}
static inline void Interp3(uint32_t * pc, uint32_t c1, uint32_t c2)
{
//*pc = (c1*7+c2)/8;
*pc = Interpolate_2(c1, 7, c2, 1, 3);
}
static inline void Interp4(uint32_t * pc, uint32_t c1, uint32_t c2, uint32_t c3)
{
//*pc = (c1*2+(c2+c3)*7)/16;
*pc = Interpolate_3(c1, 2, c2, 7, c3, 7, 4);
}
static inline void Interp5(uint32_t * pc, uint32_t c1, uint32_t c2)
{
//*pc = (c1+c2) >> 1;
*pc = Interpolate_2(c1, 1, c2, 1, 1);
}
static inline void Interp6(uint32_t * pc, uint32_t c1, uint32_t c2, uint32_t c3)
{
//*pc = (c1*5+c2*2+c3)/8;
*pc = Interpolate_3(c1, 5, c2, 2, c3, 1, 3);
}
static inline void Interp7(uint32_t * pc, uint32_t c1, uint32_t c2, uint32_t c3)
{
//*pc = (c1*6+c2+c3)/8;
*pc = Interpolate_3(c1, 6, c2, 1, c3, 1, 3);
}
static inline void Interp8(uint32_t * pc, uint32_t c1, uint32_t c2)
{
//*pc = (c1*5+c2*3)/8;
*pc = Interpolate_2(c1, 5, c2, 3, 3);
}
static inline void Interp9(uint32_t * pc, uint32_t c1, uint32_t c2, uint32_t c3)
{
//*pc = (c1*2+(c2+c3)*3)/8;
*pc = Interpolate_3(c1, 2, c2, 3, c3, 3, 3);
}
static inline void Interp10(uint32_t * pc, uint32_t c1, uint32_t c2, uint32_t c3)
{
//*pc = (c1*14+c2+c3)/16;
*pc = Interpolate_3(c1, 14, c2, 1, c3, 1, 4);
}
#endif

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3787
src/third_party/hqx/src/hq3x.c vendored Normal file
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5233
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@ -0,0 +1,138 @@
/*
* Copyright (C) 2010 Cameron Zemek ( grom@zeminvaders.net)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <unistd.h>
#include <stdint.h>
#include <stdlib.h>
#include "hqx.h"
#include <IL/il.h>
static inline uint32_t swapByteOrder(uint32_t ui)
{
return (ui >> 24) | ((ui << 8) & 0x00FF0000) | ((ui >> 8) & 0x0000FF00) | (ui << 24);
}
int main(int argc, char *argv[])
{
int opt;
int scaleBy = 4;
while ((opt = getopt(argc, argv, "s:")) != -1) {
switch (opt) {
case 's':
scaleBy = atoi(optarg);
if (scaleBy != 2 && scaleBy != 3 && scaleBy != 4) {
fprintf(stderr, "Only scale factors of 2, 3, and 4 are supported.");
return 1;
}
break;
default:
goto error_usage;
}
}
if (optind + 2 > argc) {
error_usage:
fprintf(stderr, "Usage: %s [-s scaleBy] input output\n", argv[0]);
return 1;
}
ILuint handle, width, height;
char *szFilenameIn = argv[optind];
char *szFilenameOut = argv[optind + 1];
ilInit();
ilEnable(IL_ORIGIN_SET);
ilGenImages(1, &handle);
ilBindImage(handle);
// Load image
ILboolean loaded = ilLoadImage(szFilenameIn);
if (loaded == IL_FALSE) {
fprintf(stderr, "ERROR: can't load '%s'\n", szFilenameIn);
return 1;
}
width = ilGetInteger(IL_IMAGE_WIDTH);
height = ilGetInteger(IL_IMAGE_HEIGHT);
// Allocate memory for image data
size_t srcSize = width * height * sizeof(uint32_t);
uint8_t *srcData = (uint8_t *) malloc(srcSize);
size_t destSize = width * scaleBy * height * scaleBy * sizeof(uint32_t);
uint8_t *destData = (uint8_t *) malloc(destSize);
// Init srcData from loaded image
// We want the pixels in BGRA format so that when converting to uint32_t
// we get a RGB value due to little-endianness.
ilCopyPixels(0, 0, 0, width, height, 1, IL_BGRA, IL_UNSIGNED_BYTE, srcData);
uint32_t *sp = (uint32_t *) srcData;
uint32_t *dp = (uint32_t *) destData;
// If big endian we have to swap the byte order to get RGB values
#ifdef WORDS_BIGENDIAN
uint32_t *spTemp = sp;
for (i = 0; i < srcSize >> 2; i++) {
spTemp[i] = swapByteOrder(spTemp[i]);
}
#endif
hqxInit();
switch (scaleBy) {
case 2:
hq2x_32(sp, dp, width, height);
break;
case 3:
hq3x_32(sp, dp, width, height);
break;
case 4:
default:
hq4x_32(sp, dp, width, height);
break;
}
// If big endian we have to swap byte order of destData to get BGRA format
#ifdef WORDS_BIGENDIAN
uint32_t *dpTemp = dp;
for (i = 0; i < destSize >> 2; i++) {
dpTemp[i] = swapByteOrder(dpTemp[i]);
}
#endif
// Copy destData into image
ilTexImage(width * scaleBy, height * scaleBy, 0, 4, IL_BGRA, IL_UNSIGNED_BYTE, destData);
// Free image data
free(srcData);
free(destData);
// Save image
ilConvertImage(IL_BGRA, IL_UNSIGNED_BYTE); // No alpha channel
ilHint(IL_COMPRESSION_HINT, IL_USE_COMPRESSION);
ilEnable(IL_FILE_OVERWRITE);
ILboolean saved = ilSaveImage(szFilenameOut);
ilDeleteImages(1, &handle);
if (saved == IL_FALSE) {
fprintf(stderr, "ERROR: can't save '%s'\n", szFilenameOut);
return 1;
}
return 0;
}

55
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@ -0,0 +1,55 @@
/*
* Copyright (C) 2003 Maxim Stepin ( maxst@hiend3d.com )
*
* Copyright (C) 2010 Cameron Zemek ( grom@zeminvaders.net)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __HQX_H_
#define __HQX_H_
#include <stdint.h>
#if defined( __GNUC__ )
#ifdef __MINGW32__
#define HQX_CALLCONV __stdcall
#else
#define HQX_CALLCONV
#endif
#else
#define HQX_CALLCONV
#endif
#if defined(_WIN32)
#ifdef DLL_EXPORT
#define HQX_API __declspec(dllexport)
#else
#define HQX_API __declspec(dllimport)
#endif
#else
#define HQX_API
#endif
HQX_API void HQX_CALLCONV hqxInit(void);
HQX_API void HQX_CALLCONV hq2x_32( const uint32_t * src, uint32_t * dest, int width, int height );
HQX_API void HQX_CALLCONV hq3x_32( const uint32_t * src, uint32_t * dest, int width, int height );
HQX_API void HQX_CALLCONV hq4x_32( const uint32_t * src, uint32_t * dest, int width, int height );
HQX_API void HQX_CALLCONV hq2x_32_rb( const uint32_t * src, uint32_t src_rowBytes, uint32_t * dest, uint32_t dest_rowBytes, int width, int height );
HQX_API void HQX_CALLCONV hq3x_32_rb( const uint32_t * src, uint32_t src_rowBytes, uint32_t * dest, uint32_t dest_rowBytes, int width, int height );
HQX_API void HQX_CALLCONV hq4x_32_rb( const uint32_t * src, uint32_t src_rowBytes, uint32_t * dest, uint32_t dest_rowBytes, int width, int height );
#endif

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src/third_party/hqx/src/init.c vendored Normal file
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@ -0,0 +1,38 @@
/*
* Copyright (C) 2010 Cameron Zemek ( grom@zeminvaders.net)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdint.h>
#include "hqx.h"
uint32_t RGBtoYUV[16777216];
uint32_t YUV1, YUV2;
HQX_API void HQX_CALLCONV hqxInit(void)
{
/* Initalize RGB to YUV lookup table */
uint32_t c, r, g, b, y, u, v;
for (c = 0; c < 16777216; c++) {
r = (c & 0xFF0000) >> 16;
g = (c & 0x00FF00) >> 8;
b = c & 0x0000FF;
y = (uint32_t)(0.299*r + 0.587*g + 0.114*b);
u = (uint32_t)(-0.169*r - 0.331*g + 0.5*b) + 128;
v = (uint32_t)(0.5*r - 0.419*g - 0.081*b) + 128;
RGBtoYUV[c] = (y << 16) + (u << 8) + v;
}
}

42
src/video/video.cpp
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@ -93,8 +93,9 @@
#include "map.h"
#include "ui.h"
#include "hqx/HQ2x.hh"
#include "hqx/HQ3x.hh"
extern "C" {
#include "hqx/src/hqx.h"
}
#include "SDL.h"
@ -637,7 +638,13 @@ void* Scale3x_AdvMame3x_Scaler(SDL_Surface *s) {
return out;
}
static bool hqxInitialized = false;
void *Hq2x_Scaler(SDL_Surface *s) {
if (!hqxInitialized) {
hqxInitialized = true;
hqxInit();
}
// these shifts are the hqx ARGBtoAYUV hardcoded values
Assert(s->format->Ashift == 24);
Assert(s->format->Rshift == 16);
@ -648,13 +655,15 @@ void *Hq2x_Scaler(SDL_Surface *s) {
Uint32 *in = (Uint32 *)s->pixels;
Uint32 *out = (Uint32 *)s->userdata;
HQ2x *hq2x = new HQ2x();
hq2x->resize(in, Video.Width, Video.Height, out);
delete hq2x;
hq2x_32(in, out, Video.Width, Video.Height);
return out;
}
void *Hq3x_Scaler(SDL_Surface *s) {
if (!hqxInitialized) {
hqxInitialized = true;
hqxInit();
}
// these shifts are the hqx ARGBtoAYUV hardcoded values
Assert(s->format->Ashift == 24);
Assert(s->format->Rshift == 16);
@ -665,9 +674,26 @@ void *Hq3x_Scaler(SDL_Surface *s) {
Uint32 *in = (Uint32 *)s->pixels;
Uint32 *out = (Uint32 *)s->userdata;
HQ3x *hq3x = new HQ3x();
hq3x->resize(in, Video.Width, Video.Height, out);
delete hq3x;
hq3x_32(in, out, Video.Width, Video.Height);
return out;
}
void *Hq4x_Scaler(SDL_Surface *s) {
if (!hqxInitialized) {
hqxInitialized = true;
hqxInit();
}
// these shifts are the hqx ARGBtoAYUV hardcoded values
Assert(s->format->Ashift == 24);
Assert(s->format->Rshift == 16);
Assert(s->format->Gshift == 8);
Assert(s->format->Bshift == 0);
Assert(Video.Scale == 4);
Assert(s->format->BitsPerPixel == 32);
Uint32 *in = (Uint32 *)s->pixels;
Uint32 *out = (Uint32 *)s->userdata;
hq4x_32(in, out, Video.Width, Video.Height);
return out;
}