mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-12-29 04:50:42 +00:00
6bffdf80a1
Game compiles and runs but transparency doesn't work yet. # Conflicts: # source/CMakeLists.txt # source/core/menu/menu.cpp # source/core/textures/buildtiles.cpp
141 lines
4.1 KiB
C
141 lines
4.1 KiB
C
/*
|
|
* 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;
|
|
|
|
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((int32_t)(yuv1 & Ymask) - (int32_t)(yuv2 & Ymask)) > trY ) ||
|
|
( abs((int32_t)(yuv1 & Umask) - (int32_t)(yuv2 & Umask)) > trU ) ||
|
|
( abs((int32_t)(yuv1 & Vmask) - (int32_t)(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 uint32_t Interp1(uint32_t c1, uint32_t c2)
|
|
{
|
|
//(c1*3+c2) >> 2;
|
|
return Interpolate_2(c1, 3, c2, 1, 2);
|
|
}
|
|
|
|
static inline uint32_t Interp2(uint32_t c1, uint32_t c2, uint32_t c3)
|
|
{
|
|
//(c1*2+c2+c3) >> 2;
|
|
return Interpolate_3(c1, 2, c2, 1, c3, 1, 2);
|
|
}
|
|
|
|
static inline uint32_t Interp3(uint32_t c1, uint32_t c2)
|
|
{
|
|
//(c1*7+c2)/8;
|
|
return Interpolate_2(c1, 7, c2, 1, 3);
|
|
}
|
|
|
|
static inline uint32_t Interp4(uint32_t c1, uint32_t c2, uint32_t c3)
|
|
{
|
|
//(c1*2+(c2+c3)*7)/16;
|
|
return Interpolate_3(c1, 2, c2, 7, c3, 7, 4);
|
|
}
|
|
|
|
static inline uint32_t Interp5(uint32_t c1, uint32_t c2)
|
|
{
|
|
//(c1+c2) >> 1;
|
|
return Interpolate_2(c1, 1, c2, 1, 1);
|
|
}
|
|
|
|
static inline uint32_t Interp6(uint32_t c1, uint32_t c2, uint32_t c3)
|
|
{
|
|
//(c1*5+c2*2+c3)/8;
|
|
return Interpolate_3(c1, 5, c2, 2, c3, 1, 3);
|
|
}
|
|
|
|
static inline uint32_t Interp7(uint32_t c1, uint32_t c2, uint32_t c3)
|
|
{
|
|
//(c1*6+c2+c3)/8;
|
|
return Interpolate_3(c1, 6, c2, 1, c3, 1, 3);
|
|
}
|
|
|
|
static inline uint32_t Interp8(uint32_t c1, uint32_t c2)
|
|
{
|
|
//(c1*5+c2*3)/8;
|
|
return Interpolate_2(c1, 5, c2, 3, 3);
|
|
}
|
|
|
|
static inline uint32_t Interp9(uint32_t c1, uint32_t c2, uint32_t c3)
|
|
{
|
|
//(c1*2+(c2+c3)*3)/8;
|
|
return Interpolate_3(c1, 2, c2, 3, c3, 3, 3);
|
|
}
|
|
|
|
static inline uint32_t Interp10(uint32_t c1, uint32_t c2, uint32_t c3)
|
|
{
|
|
//(c1*14+c2+c3)/16;
|
|
return Interpolate_3(c1, 14, c2, 1, c3, 1, 4);
|
|
}
|
|
|
|
#endif
|