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- /*
- * This file is part of the Advance project.
- *
- * Copyright (C) 2003 Andrea Mazzoleni
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * In addition, as a special exception, Andrea Mazzoleni
- * gives permission to link the code of this program with
- * the MAME library (or with modified versions of MAME that use the
- * same license as MAME), and distribute linked combinations including
- * the two. You must obey the GNU General Public License in all
- * respects for all of the code used other than MAME. If you modify
- * this file, you may extend this exception to your version of the
- * file, but you are not obligated to do so. If you do not wish to
- * do so, delete this exception statement from your version.
- */
- #include "System.h"
- #include "interp.h"
-
- /***************************************************************************/
- /* HQ2x C implementation */
-
- /*
- * This effect is a rewritten implementation of the hq2x effect made by Maxim Stepin
- */
-
- static void hq2x_16_def(u16* dst0, u16* dst1, const u16* src0, const u16* src1, const u16* src2, unsigned count)
- {
- unsigned i;
-
- for(i=0;i<count;++i) {
- unsigned char mask;
-
- u16 c[9];
-
- c[1] = src0[0];
- c[4] = src1[0];
- c[7] = src2[0];
-
- if (i>0) {
- c[0] = src0[-1];
- c[3] = src1[-1];
- c[6] = src2[-1];
- } else {
- c[0] = c[1];
- c[3] = c[4];
- c[6] = c[7];
- }
-
- if (i<count-1) {
- c[2] = src0[1];
- c[5] = src1[1];
- c[8] = src2[1];
- } else {
- c[2] = c[1];
- c[5] = c[4];
- c[8] = c[7];
- }
-
- mask = 0;
-
- if (interp_16_diff(c[0], c[4]))
- mask |= 1 << 0;
- if (interp_16_diff(c[1], c[4]))
- mask |= 1 << 1;
- if (interp_16_diff(c[2], c[4]))
- mask |= 1 << 2;
- if (interp_16_diff(c[3], c[4]))
- mask |= 1 << 3;
- if (interp_16_diff(c[5], c[4]))
- mask |= 1 << 4;
- if (interp_16_diff(c[6], c[4]))
- mask |= 1 << 5;
- if (interp_16_diff(c[7], c[4]))
- mask |= 1 << 6;
- if (interp_16_diff(c[8], c[4]))
- mask |= 1 << 7;
-
- #define P0 dst0[0]
- #define P1 dst0[1]
- #define P2 dst1[0]
- #define P3 dst1[1]
- #define MUR interp_16_diff(c[1], c[5])
- #define MDR interp_16_diff(c[5], c[7])
- #define MDL interp_16_diff(c[7], c[3])
- #define MUL interp_16_diff(c[3], c[1])
- #define IC(p0) c[p0]
- #define I11(p0,p1) interp_16_11(c[p0], c[p1])
- #define I211(p0,p1,p2) interp_16_211(c[p0], c[p1], c[p2])
- #define I31(p0,p1) interp_16_31(c[p0], c[p1])
- #define I332(p0,p1,p2) interp_16_332(c[p0], c[p1], c[p2])
- #define I431(p0,p1,p2) interp_16_431(c[p0], c[p1], c[p2])
- #define I521(p0,p1,p2) interp_16_521(c[p0], c[p1], c[p2])
- #define I53(p0,p1) interp_16_53(c[p0], c[p1])
- #define I611(p0,p1,p2) interp_16_611(c[p0], c[p1], c[p2])
- #define I71(p0,p1) interp_16_71(c[p0], c[p1])
- #define I772(p0,p1,p2) interp_16_772(c[p0], c[p1], c[p2])
- #define I97(p0,p1) interp_16_97(c[p0], c[p1])
- #define I1411(p0,p1,p2) interp_16_1411(c[p0], c[p1], c[p2])
- #define I151(p0,p1) interp_16_151(c[p0], c[p1])
-
- switch (mask) {
- #include "hq2x.h"
- }
-
- #undef P0
- #undef P1
- #undef P2
- #undef P3
- #undef MUR
- #undef MDR
- #undef MDL
- #undef MUL
- #undef IC
- #undef I11
- #undef I211
- #undef I31
- #undef I332
- #undef I431
- #undef I521
- #undef I53
- #undef I611
- #undef I71
- #undef I772
- #undef I97
- #undef I1411
- #undef I151
-
- src0 += 1;
- src1 += 1;
- src2 += 1;
- dst0 += 2;
- dst1 += 2;
- }
- }
-
- static void hq2x_32_def(u32* dst0, u32* dst1, const u32* src0, const u32* src1, const u32* src2, unsigned count)
- {
- unsigned i;
-
- for(i=0;i<count;++i) {
- unsigned char mask;
-
- u32 c[9];
-
- c[1] = src0[0];
- c[4] = src1[0];
- c[7] = src2[0];
-
- if (i>0) {
- c[0] = src0[-1];
- c[3] = src1[-1];
- c[6] = src2[-1];
- } else {
- c[0] = c[1];
- c[3] = c[4];
- c[6] = c[7];
- }
-
- if (i<count-1) {
- c[2] = src0[1];
- c[5] = src1[1];
- c[8] = src2[1];
- } else {
- c[2] = c[1];
- c[5] = c[4];
- c[8] = c[7];
- }
-
- mask = 0;
-
- if (interp_32_diff(c[0], c[4]))
- mask |= 1 << 0;
- if (interp_32_diff(c[1], c[4]))
- mask |= 1 << 1;
- if (interp_32_diff(c[2], c[4]))
- mask |= 1 << 2;
- if (interp_32_diff(c[3], c[4]))
- mask |= 1 << 3;
- if (interp_32_diff(c[5], c[4]))
- mask |= 1 << 4;
- if (interp_32_diff(c[6], c[4]))
- mask |= 1 << 5;
- if (interp_32_diff(c[7], c[4]))
- mask |= 1 << 6;
- if (interp_32_diff(c[8], c[4]))
- mask |= 1 << 7;
-
- #define P0 dst0[0]
- #define P1 dst0[1]
- #define P2 dst1[0]
- #define P3 dst1[1]
- #define MUR interp_32_diff(c[1], c[5])
- #define MDR interp_32_diff(c[5], c[7])
- #define MDL interp_32_diff(c[7], c[3])
- #define MUL interp_32_diff(c[3], c[1])
- #define IC(p0) c[p0]
- #define I11(p0,p1) interp_32_11(c[p0], c[p1])
- #define I211(p0,p1,p2) interp_32_211(c[p0], c[p1], c[p2])
- #define I31(p0,p1) interp_32_31(c[p0], c[p1])
- #define I332(p0,p1,p2) interp_32_332(c[p0], c[p1], c[p2])
- #define I431(p0,p1,p2) interp_32_431(c[p0], c[p1], c[p2])
- #define I521(p0,p1,p2) interp_32_521(c[p0], c[p1], c[p2])
- #define I53(p0,p1) interp_32_53(c[p0], c[p1])
- #define I611(p0,p1,p2) interp_32_611(c[p0], c[p1], c[p2])
- #define I71(p0,p1) interp_32_71(c[p0], c[p1])
- #define I772(p0,p1,p2) interp_32_772(c[p0], c[p1], c[p2])
- #define I97(p0,p1) interp_32_97(c[p0], c[p1])
- #define I1411(p0,p1,p2) interp_32_1411(c[p0], c[p1], c[p2])
- #define I151(p0,p1) interp_32_151(c[p0], c[p1])
-
- switch (mask) {
- #include "hq2x.h"
- }
-
- #undef P0
- #undef P1
- #undef P2
- #undef P3
- #undef MUR
- #undef MDR
- #undef MDL
- #undef MUL
- #undef IC
- #undef I11
- #undef I211
- #undef I31
- #undef I332
- #undef I431
- #undef I521
- #undef I53
- #undef I611
- #undef I71
- #undef I772
- #undef I97
- #undef I1411
- #undef I151
-
- src0 += 1;
- src1 += 1;
- src2 += 1;
- dst0 += 2;
- dst1 += 2;
- }
- }
-
- /***************************************************************************/
- /* LQ2x C implementation */
-
- /*
- * This effect is derived from the hq2x effect made by Maxim Stepin
- */
-
- static void lq2x_16_def(u16* dst0, u16* dst1, const u16* src0, const u16* src1, const u16* src2, unsigned count)
- {
- unsigned i;
-
- for(i=0;i<count;++i) {
- unsigned char mask;
-
- u16 c[9];
-
- c[1] = src0[0];
- c[4] = src1[0];
- c[7] = src2[0];
-
- if (i>0) {
- c[0] = src0[-1];
- c[3] = src1[-1];
- c[6] = src2[-1];
- } else {
- c[0] = c[1];
- c[3] = c[4];
- c[6] = c[7];
- }
-
- if (i<count-1) {
- c[2] = src0[1];
- c[5] = src1[1];
- c[8] = src2[1];
- } else {
- c[2] = c[1];
- c[5] = c[4];
- c[8] = c[7];
- }
-
- mask = 0;
-
- if (c[0] != c[4])
- mask |= 1 << 0;
- if (c[1] != c[4])
- mask |= 1 << 1;
- if (c[2] != c[4])
- mask |= 1 << 2;
- if (c[3] != c[4])
- mask |= 1 << 3;
- if (c[5] != c[4])
- mask |= 1 << 4;
- if (c[6] != c[4])
- mask |= 1 << 5;
- if (c[7] != c[4])
- mask |= 1 << 6;
- if (c[8] != c[4])
- mask |= 1 << 7;
-
- #define P0 dst0[0]
- #define P1 dst0[1]
- #define P2 dst1[0]
- #define P3 dst1[1]
- #define MUR (c[1] != c[5])
- #define MDR (c[5] != c[7])
- #define MDL (c[7] != c[3])
- #define MUL (c[3] != c[1])
- #define IC(p0) c[p0]
- #define I11(p0,p1) interp_16_11(c[p0], c[p1])
- #define I211(p0,p1,p2) interp_16_211(c[p0], c[p1], c[p2])
- #define I31(p0,p1) interp_16_31(c[p0], c[p1])
- #define I332(p0,p1,p2) interp_16_332(c[p0], c[p1], c[p2])
- #define I431(p0,p1,p2) interp_16_431(c[p0], c[p1], c[p2])
- #define I521(p0,p1,p2) interp_16_521(c[p0], c[p1], c[p2])
- #define I53(p0,p1) interp_16_53(c[p0], c[p1])
- #define I611(p0,p1,p2) interp_16_611(c[p0], c[p1], c[p2])
- #define I71(p0,p1) interp_16_71(c[p0], c[p1])
- #define I772(p0,p1,p2) interp_16_772(c[p0], c[p1], c[p2])
- #define I97(p0,p1) interp_16_97(c[p0], c[p1])
- #define I1411(p0,p1,p2) interp_16_1411(c[p0], c[p1], c[p2])
- #define I151(p0,p1) interp_16_151(c[p0], c[p1])
-
- switch (mask) {
- #include "lq2x.h"
- }
-
- #undef P0
- #undef P1
- #undef P2
- #undef P3
- #undef MUR
- #undef MDR
- #undef MDL
- #undef MUL
- #undef IC
- #undef I11
- #undef I211
- #undef I31
- #undef I332
- #undef I431
- #undef I521
- #undef I53
- #undef I611
- #undef I71
- #undef I772
- #undef I97
- #undef I1411
- #undef I151
-
- src0 += 1;
- src1 += 1;
- src2 += 1;
- dst0 += 2;
- dst1 += 2;
- }
- }
-
- static void lq2x_32_def(u32* dst0, u32* dst1, const u32* src0, const u32* src1, const u32* src2, unsigned count)
- {
- unsigned i;
-
- for(i=0;i<count;++i) {
- unsigned char mask;
-
- u32 c[9];
-
- c[1] = src0[0];
- c[4] = src1[0];
- c[7] = src2[0];
-
- if (i>0) {
- c[0] = src0[-1];
- c[3] = src1[-1];
- c[6] = src2[-1];
- } else {
- c[0] = c[1];
- c[3] = c[4];
- c[6] = c[7];
- }
-
- if (i<count-1) {
- c[2] = src0[1];
- c[5] = src1[1];
- c[8] = src2[1];
- } else {
- c[2] = c[1];
- c[5] = c[4];
- c[8] = c[7];
- }
-
- mask = 0;
-
- if (c[0] != c[4])
- mask |= 1 << 0;
- if (c[1] != c[4])
- mask |= 1 << 1;
- if (c[2] != c[4])
- mask |= 1 << 2;
- if (c[3] != c[4])
- mask |= 1 << 3;
- if (c[5] != c[4])
- mask |= 1 << 4;
- if (c[6] != c[4])
- mask |= 1 << 5;
- if (c[7] != c[4])
- mask |= 1 << 6;
- if (c[8] != c[4])
- mask |= 1 << 7;
-
- #define P0 dst0[0]
- #define P1 dst0[1]
- #define P2 dst1[0]
- #define P3 dst1[1]
- #define MUR (c[1] != c[5])
- #define MDR (c[5] != c[7])
- #define MDL (c[7] != c[3])
- #define MUL (c[3] != c[1])
- #define IC(p0) c[p0]
- #define I11(p0,p1) interp_32_11(c[p0], c[p1])
- #define I211(p0,p1,p2) interp_32_211(c[p0], c[p1], c[p2])
- #define I31(p0,p1) interp_32_31(c[p0], c[p1])
- #define I332(p0,p1,p2) interp_32_332(c[p0], c[p1], c[p2])
- #define I431(p0,p1,p2) interp_32_431(c[p0], c[p1], c[p2])
- #define I521(p0,p1,p2) interp_32_521(c[p0], c[p1], c[p2])
- #define I53(p0,p1) interp_32_53(c[p0], c[p1])
- #define I611(p0,p1,p2) interp_32_611(c[p0], c[p1], c[p2])
- #define I71(p0,p1) interp_32_71(c[p0], c[p1])
- #define I772(p0,p1,p2) interp_32_772(c[p0], c[p1], c[p2])
- #define I97(p0,p1) interp_32_97(c[p0], c[p1])
- #define I1411(p0,p1,p2) interp_32_1411(c[p0], c[p1], c[p2])
- #define I151(p0,p1) interp_32_151(c[p0], c[p1])
-
- switch (mask) {
- #include "lq2x.h"
- }
-
- #undef P0
- #undef P1
- #undef P2
- #undef P3
- #undef MUR
- #undef MDR
- #undef MDL
- #undef MUL
- #undef IC
- #undef I11
- #undef I211
- #undef I31
- #undef I332
- #undef I431
- #undef I521
- #undef I53
- #undef I611
- #undef I71
- #undef I772
- #undef I97
- #undef I1411
- #undef I151
-
- src0 += 1;
- src1 += 1;
- src2 += 1;
- dst0 += 2;
- dst1 += 2;
- }
- }
-
- void hq2x(u8 *srcPtr, u32 srcPitch, u8 * /* deltaPtr */,
- u8 *dstPtr, u32 dstPitch, int width, int height)
- {
- u16 *dst0 = (u16 *)dstPtr;
- u16 *dst1 = dst0 + (dstPitch >> 1);
-
- u16 *src0 = (u16 *)srcPtr;
- u16 *src1 = src0 + (srcPitch >> 1);
- u16 *src2 = src1 + (srcPitch >> 1);
-
- hq2x_16_def(dst0, dst1, src0, src0, src1, width);
-
- int count = height;
-
- count -= 2;
- while(count) {
- dst0 += dstPitch;
- dst1 += dstPitch;
- hq2x_16_def(dst0, dst1, src0, src1, src2, width);
- src0 = src1;
- src1 = src2;
- src2 += srcPitch >> 1;
- --count;
- }
- dst0 += dstPitch;
- dst1 += dstPitch;
- hq2x_16_def(dst0, dst1, src0, src1, src1, width);
- }
-
- void hq2x32(u8 *srcPtr, u32 srcPitch, u8 * /* deltaPtr */,
- u8 *dstPtr, u32 dstPitch, int width, int height)
- {
- u32 *dst0 = (u32 *)dstPtr;
- u32 *dst1 = dst0 + (dstPitch >> 2);
-
- u32 *src0 = (u32 *)srcPtr;
- u32 *src1 = src0 + (srcPitch >> 2);
- u32 *src2 = src1 + (srcPitch >> 2);
- hq2x_32_def(dst0, dst1, src0, src0, src1, width);
-
- int count = height;
-
- count -= 2;
- while(count) {
- dst0 += dstPitch >> 1;
- dst1 += dstPitch >> 1;
- hq2x_32_def(dst0, dst1, src0, src1, src2, width);
- src0 = src1;
- src1 = src2;
- src2 += srcPitch >> 2;
- --count;
- }
- dst0 += dstPitch >> 1;
- dst1 += dstPitch >> 1;
- hq2x_32_def(dst0, dst1, src0, src1, src1, width);
- }
-
- void lq2x(u8 *srcPtr, u32 srcPitch, u8 * /* deltaPtr */,
- u8 *dstPtr, u32 dstPitch, int width, int height)
- {
- u16 *dst0 = (u16 *)dstPtr;
- u16 *dst1 = dst0 + (dstPitch >> 1);
-
- u16 *src0 = (u16 *)srcPtr;
- u16 *src1 = src0 + (srcPitch >> 1);
- u16 *src2 = src1 + (srcPitch >> 1);
-
- lq2x_16_def(dst0, dst1, src0, src0, src1, width);
-
- int count = height;
-
- count -= 2;
- while(count) {
- dst0 += dstPitch;
- dst1 += dstPitch;
- hq2x_16_def(dst0, dst1, src0, src1, src2, width);
- src0 = src1;
- src1 = src2;
- src2 += srcPitch >> 1;
- --count;
- }
- dst0 += dstPitch;
- dst1 += dstPitch;
- lq2x_16_def(dst0, dst1, src0, src1, src1, width);
- }
-
- void lq2x32(u8 *srcPtr, u32 srcPitch, u8 * /* deltaPtr */,
- u8 *dstPtr, u32 dstPitch, int width, int height)
- {
- u32 *dst0 = (u32 *)dstPtr;
- u32 *dst1 = dst0 + (dstPitch >> 2);
-
- u32 *src0 = (u32 *)srcPtr;
- u32 *src1 = src0 + (srcPitch >> 2);
- u32 *src2 = src1 + (srcPitch >> 2);
- lq2x_32_def(dst0, dst1, src0, src0, src1, width);
-
- int count = height;
-
- count -= 2;
- while(count) {
- dst0 += dstPitch >> 1;
- dst1 += dstPitch >> 1;
- hq2x_32_def(dst0, dst1, src0, src1, src2, width);
- src0 = src1;
- src1 = src2;
- src2 += srcPitch >> 2;
- --count;
- }
- dst0 += dstPitch >> 1;
- dst1 += dstPitch >> 1;
- lq2x_32_def(dst0, dst1, src0, src1, src1, width);
- }
-
- void hq2x_init(unsigned bits_per_pixel)
- {
- interp_set(bits_per_pixel);
- }
-