mirror of
https://github.com/ZDoom/gzdoom-gles.git
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328 lines
11 KiB
C++
328 lines
11 KiB
C++
/*
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** gl_hqresize.cpp
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** Contains high quality upsampling functions.
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** So far Scale2x/3x/4x as described in http://scale2x.sourceforge.net/
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** are implemented.
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**
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**---------------------------------------------------------------------------
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** Copyright 2008 Benjamin Berkels
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#include "gl/system/gl_system.h"
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#include "gl/system/gl_interface.h"
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#include "gl/renderer/gl_renderer.h"
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#include "gl/textures/gl_texture.h"
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#include "c_cvars.h"
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#include "gl/hqnx/hqx.h"
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#ifdef HAVE_MMX
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#include "gl/hqnx_asm/hqnx_asm.h"
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#endif
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CUSTOM_CVAR(Int, gl_texture_hqresize, 0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
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{
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#ifdef HAVE_MMX
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if (self < 0 || self > 9)
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#else
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if (self < 0 || self > 6)
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#endif
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self = 0;
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GLRenderer->FlushTextures();
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}
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CUSTOM_CVAR(Int, gl_texture_hqresize_maxinputsize, 512, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
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{
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if (self > 1024) self = 1024;
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GLRenderer->FlushTextures();
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}
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CUSTOM_CVAR(Int, gl_texture_hqresize_targets, 7, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
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{
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GLRenderer->FlushTextures();
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}
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CVAR (Flag, gl_texture_hqresize_textures, gl_texture_hqresize_targets, 1);
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CVAR (Flag, gl_texture_hqresize_sprites, gl_texture_hqresize_targets, 2);
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CVAR (Flag, gl_texture_hqresize_fonts, gl_texture_hqresize_targets, 4);
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static void scale2x ( uint32* inputBuffer, uint32* outputBuffer, int inWidth, int inHeight )
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{
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const int width = 2* inWidth;
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const int height = 2 * inHeight;
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for ( int i = 0; i < inWidth; ++i )
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{
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const int iMinus = (i > 0) ? (i-1) : 0;
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const int iPlus = (i < inWidth - 1 ) ? (i+1) : i;
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for ( int j = 0; j < inHeight; ++j )
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{
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const int jMinus = (j > 0) ? (j-1) : 0;
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const int jPlus = (j < inHeight - 1 ) ? (j+1) : j;
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const uint32 A = inputBuffer[ iMinus +inWidth*jMinus];
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const uint32 B = inputBuffer[ iMinus +inWidth*j ];
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const uint32 C = inputBuffer[ iMinus +inWidth*jPlus];
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const uint32 D = inputBuffer[ i +inWidth*jMinus];
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const uint32 E = inputBuffer[ i +inWidth*j ];
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const uint32 F = inputBuffer[ i +inWidth*jPlus];
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const uint32 G = inputBuffer[ iPlus +inWidth*jMinus];
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const uint32 H = inputBuffer[ iPlus +inWidth*j ];
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const uint32 I = inputBuffer[ iPlus +inWidth*jPlus];
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if (B != H && D != F) {
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outputBuffer[2*i + width*2*j ] = D == B ? D : E;
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outputBuffer[2*i + width*(2*j+1)] = B == F ? F : E;
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outputBuffer[2*i+1 + width*2*j ] = D == H ? D : E;
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outputBuffer[2*i+1 + width*(2*j+1)] = H == F ? F : E;
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} else {
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outputBuffer[2*i + width*2*j ] = E;
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outputBuffer[2*i + width*(2*j+1)] = E;
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outputBuffer[2*i+1 + width*2*j ] = E;
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outputBuffer[2*i+1 + width*(2*j+1)] = E;
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}
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}
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}
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}
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static void scale3x ( uint32* inputBuffer, uint32* outputBuffer, int inWidth, int inHeight )
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{
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const int width = 3* inWidth;
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const int height = 3 * inHeight;
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for ( int i = 0; i < inWidth; ++i )
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{
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const int iMinus = (i > 0) ? (i-1) : 0;
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const int iPlus = (i < inWidth - 1 ) ? (i+1) : i;
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for ( int j = 0; j < inHeight; ++j )
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{
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const int jMinus = (j > 0) ? (j-1) : 0;
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const int jPlus = (j < inHeight - 1 ) ? (j+1) : j;
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const uint32 A = inputBuffer[ iMinus +inWidth*jMinus];
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const uint32 B = inputBuffer[ iMinus +inWidth*j ];
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const uint32 C = inputBuffer[ iMinus +inWidth*jPlus];
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const uint32 D = inputBuffer[ i +inWidth*jMinus];
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const uint32 E = inputBuffer[ i +inWidth*j ];
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const uint32 F = inputBuffer[ i +inWidth*jPlus];
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const uint32 G = inputBuffer[ iPlus +inWidth*jMinus];
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const uint32 H = inputBuffer[ iPlus +inWidth*j ];
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const uint32 I = inputBuffer[ iPlus +inWidth*jPlus];
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if (B != H && D != F) {
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outputBuffer[3*i + width*3*j ] = D == B ? D : E;
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outputBuffer[3*i + width*(3*j+1)] = (D == B && E != C) || (B == F && E != A) ? B : E;
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outputBuffer[3*i + width*(3*j+2)] = B == F ? F : E;
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outputBuffer[3*i+1 + width*3*j ] = (D == B && E != G) || (D == H && E != A) ? D : E;
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outputBuffer[3*i+1 + width*(3*j+1)] = E;
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outputBuffer[3*i+1 + width*(3*j+2)] = (B == F && E != I) || (H == F && E != C) ? F : E;
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outputBuffer[3*i+2 + width*3*j ] = D == H ? D : E;
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outputBuffer[3*i+2 + width*(3*j+1)] = (D == H && E != I) || (H == F && E != G) ? H : E;
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outputBuffer[3*i+2 + width*(3*j+2)] = H == F ? F : E;
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} else {
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outputBuffer[3*i + width*3*j ] = E;
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outputBuffer[3*i + width*(3*j+1)] = E;
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outputBuffer[3*i + width*(3*j+2)] = E;
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outputBuffer[3*i+1 + width*3*j ] = E;
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outputBuffer[3*i+1 + width*(3*j+1)] = E;
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outputBuffer[3*i+1 + width*(3*j+2)] = E;
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outputBuffer[3*i+2 + width*3*j ] = E;
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outputBuffer[3*i+2 + width*(3*j+1)] = E;
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outputBuffer[3*i+2 + width*(3*j+2)] = E;
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}
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}
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}
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}
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static void scale4x ( uint32* inputBuffer, uint32* outputBuffer, int inWidth, int inHeight )
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{
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int width = 2* inWidth;
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int height = 2 * inHeight;
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uint32 * buffer2x = new uint32[width*height];
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scale2x ( reinterpret_cast<uint32*> ( inputBuffer ), reinterpret_cast<uint32*> ( buffer2x ), inWidth, inHeight );
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width *= 2;
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height *= 2;
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scale2x ( reinterpret_cast<uint32*> ( buffer2x ), reinterpret_cast<uint32*> ( outputBuffer ), 2*inWidth, 2*inHeight );
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delete[] buffer2x;
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}
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static unsigned char *scaleNxHelper( void (*scaleNxFunction) ( uint32* , uint32* , int , int),
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const int N,
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unsigned char *inputBuffer,
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const int inWidth,
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const int inHeight,
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int &outWidth,
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int &outHeight )
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{
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outWidth = N * inWidth;
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outHeight = N *inHeight;
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unsigned char * newBuffer = new unsigned char[outWidth*outHeight*4];
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scaleNxFunction ( reinterpret_cast<uint32*> ( inputBuffer ), reinterpret_cast<uint32*> ( newBuffer ), inWidth, inHeight );
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delete[] inputBuffer;
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return newBuffer;
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}
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#ifdef HAVE_MMX
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static unsigned char *hqNxAsmHelper( void (*hqNxFunction) ( int*, unsigned char*, int, int, int ),
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const int N,
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unsigned char *inputBuffer,
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const int inWidth,
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const int inHeight,
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int &outWidth,
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int &outHeight )
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{
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outWidth = N * inWidth;
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outHeight = N *inHeight;
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static int initdone = false;
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if (!initdone)
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{
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HQnX_asm::InitLUTs();
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initdone = true;
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}
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HQnX_asm::CImage cImageIn;
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cImageIn.SetImage(inputBuffer, inWidth, inHeight, 32);
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cImageIn.Convert32To17();
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unsigned char * newBuffer = new unsigned char[outWidth*outHeight*4];
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hqNxFunction( reinterpret_cast<int*>(cImageIn.m_pBitmap), newBuffer, cImageIn.m_Xres, cImageIn.m_Yres, outWidth*4 );
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delete[] inputBuffer;
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return newBuffer;
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}
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#endif
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static unsigned char *hqNxHelper( void (*hqNxFunction) ( unsigned*, unsigned*, int, int ),
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const int N,
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unsigned char *inputBuffer,
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const int inWidth,
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const int inHeight,
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int &outWidth,
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int &outHeight )
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{
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static int initdone = false;
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if (!initdone)
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{
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hqxInit();
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initdone = true;
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}
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outWidth = N * inWidth;
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outHeight = N *inHeight;
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unsigned char * newBuffer = new unsigned char[outWidth*outHeight*4];
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hqNxFunction( reinterpret_cast<unsigned*>(inputBuffer), reinterpret_cast<unsigned*>(newBuffer), inWidth, inHeight );
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delete[] inputBuffer;
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return newBuffer;
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}
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//===========================================================================
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//
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// [BB] Upsamples the texture in inputBuffer, frees inputBuffer and returns
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// the upsampled buffer.
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//
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//===========================================================================
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unsigned char *gl_CreateUpsampledTextureBuffer ( const FTexture *inputTexture, unsigned char *inputBuffer, const int inWidth, const int inHeight, int &outWidth, int &outHeight, bool hasAlpha )
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{
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// [BB] Make sure that outWidth and outHeight denote the size of
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// the returned buffer even if we don't upsample the input buffer.
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outWidth = inWidth;
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outHeight = inHeight;
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// [BB] Don't resample if the width or height of the input texture is bigger than gl_texture_hqresize_maxinputsize.
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if ( ( inWidth > gl_texture_hqresize_maxinputsize ) || ( inHeight > gl_texture_hqresize_maxinputsize ) )
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return inputBuffer;
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// [BB] Don't try to upsample textures based off FCanvasTexture.
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if ( inputTexture->bHasCanvas )
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return inputBuffer;
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// [BB] Don't upsample non-shader handled warped textures. Needs too much memory and time
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if (gl.glslversion == 0 && inputTexture->bWarped)
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return inputBuffer;
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// already scaled?
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if (inputTexture->Scale.X >= 2 && inputTexture->Scale.Y >= 2)
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return inputBuffer;
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switch (inputTexture->UseType)
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{
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case FTexture::TEX_Sprite:
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case FTexture::TEX_SkinSprite:
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if (!(gl_texture_hqresize_targets & 2)) return inputBuffer;
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break;
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case FTexture::TEX_FontChar:
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if (!(gl_texture_hqresize_targets & 4)) return inputBuffer;
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break;
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default:
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if (!(gl_texture_hqresize_targets & 1)) return inputBuffer;
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break;
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}
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if (inputBuffer)
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{
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int type = gl_texture_hqresize;
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outWidth = inWidth;
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outHeight = inHeight;
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#ifdef HAVE_MMX
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// hqNx MMX does not preserve the alpha channel so fall back to C-version for such textures
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if (hasAlpha && type > 6 && type <= 9)
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{
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type -= 3;
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}
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#endif
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switch (type)
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{
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case 1:
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return scaleNxHelper( &scale2x, 2, inputBuffer, inWidth, inHeight, outWidth, outHeight );
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case 2:
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return scaleNxHelper( &scale3x, 3, inputBuffer, inWidth, inHeight, outWidth, outHeight );
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case 3:
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return scaleNxHelper( &scale4x, 4, inputBuffer, inWidth, inHeight, outWidth, outHeight );
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case 4:
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return hqNxHelper( &hq2x_32, 2, inputBuffer, inWidth, inHeight, outWidth, outHeight );
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case 5:
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return hqNxHelper( &hq3x_32, 3, inputBuffer, inWidth, inHeight, outWidth, outHeight );
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case 6:
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return hqNxHelper( &hq4x_32, 4, inputBuffer, inWidth, inHeight, outWidth, outHeight );
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#ifdef HAVE_MMX
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case 7:
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return hqNxAsmHelper( &HQnX_asm::hq2x_32, 2, inputBuffer, inWidth, inHeight, outWidth, outHeight );
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case 8:
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return hqNxAsmHelper( &HQnX_asm::hq3x_32, 3, inputBuffer, inWidth, inHeight, outWidth, outHeight );
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case 9:
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return hqNxAsmHelper( &HQnX_asm::hq4x_32, 4, inputBuffer, inWidth, inHeight, outWidth, outHeight );
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#endif
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}
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}
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return inputBuffer;
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}
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