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kichikuou_xsystem35-sdl2/src/image.c
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/*
* image.c image操作
*
* Copyright (C) 1997-1998 Masaki Chikama (Wren) <chikama@kasumi.ipl.mech.nagoya-u.ac.jp>
* 1998- <masaki-c@is.aist-nara.ac.jp>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* $Id: image.c,v 1.40 2003/08/30 21:29:16 chikama Exp $ */
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include "portab.h"
#include "system.h"
#include "image.h"
#include "cg.h"
#include "config.h"
#include "nact.h"
#include "graphicsdevice.h"
#include "alpha_plane.h"
#include "ags.h"
/* private variables */
static Pallet xpal[256]; /* pal & pixel 値 */
/* fader */
static int fadeX[16] = {0,2,2,0,1,3,3,1,1,3,3,1,0,2,2,0};
static int fadeY[16] = {0,2,0,2,1,3,1,3,0,2,0,2,1,3,1,3};
/* private methods */
static void trans_index2pixels(int depth, int lv, cgdata *cg);
static int trans_index2pixel(int depth, int i);
static void image_drawLine8(agsurface_t *dib, int x0, int y0, int x1, int y1, int col);
static void image_drawRectangle8(agsurface_t *dib, int x, int y, int w, int h, int col);
static void image_fillRectangle8(agsurface_t *dib, int x, int y, int w, int h, int col);
static void image_copyArea8(agsurface_t *dib, int sx, int sy, int w, int h, int dx, int dy);
static void image_getGlyphImage8to8(agsurface_t *dib, agsurface_t *glyph, int dx, int dy, int col);
static void image_copyAreaSP8(agsurface_t *dib, BYTE *sdata, BYTE *ddata, int width, int height, int sp);
#include "image15.c"
#include "image16.c"
#include "image24.c"
#include "image24p.c"
static void (*draw_image24_from_data)(agsurface_t *, cgdata *, int, int, int, int);
static void (*draw_sprite16_from_data)(agsurface_t *, cgdata *, int, int, int, int);
static void (*draw_image16_from_data)(agsurface_t *, cgdata *, int, int, int, int);
static void (*draw_line)(agsurface_t*, int, int, int, int, int);
static void (*draw_rectangle)(agsurface_t*, int, int, int, int, int);
static void (*fill_rectangle)(agsurface_t*, int, int, int, int, int);
static void (*copy_area)(agsurface_t*, int, int, int, int, int, int);
static void (*copy_area_ablend_sda)(agsurface_t *, BYTE *, BYTE *, int, int, BYTE *, int);
static void (*copy_area_ablend_sd)(agsurface_t *, BYTE *, BYTE *, int, int, int);
static void (*copy_area_alevel)(agsurface_t *, BYTE *, BYTE *, int, int, int);
static void (*copy_area_wlevel)(agsurface_t *, BYTE *, BYTE *, int, int, int);
static void (*copy_from_alpha)(agsurface_t *, BYTE *, BYTE *, int, int, ALPHA_DIB_COPY_TYPE);
static void (*copy_to_alpha)(agsurface_t *, BYTE *, BYTE *, int, int, ALPHA_DIB_COPY_TYPE);
static void (*wrap_color)(agsurface_t *, BYTE *, int, int, int, int);
static void (*copy_area_sprite)(agsurface_t *, BYTE *, BYTE *, int, int, int);
static void (*draw_antialiased_pattern)(agsurface_t *, agsurface_t *, int, int, int, int, int);
/*
* dib の depth に応じた関数の設定
* depth: dib depth
*/
void image_setdepth(int depth) {
switch(depth) {
case 8:
draw_line = image_drawLine8;
draw_rectangle = image_drawRectangle8;
fill_rectangle = image_fillRectangle8;
copy_area = image_copyArea8;
copy_area_sprite = image_copyAreaSP8;
break;
case 15:
// draw_image24_from_data = drawImage24_fromData15;
draw_sprite16_from_data = drawSprite16_fromData15;
draw_image16_from_data = drawImage16_fromData15;
draw_line = image_drawLine16;
draw_rectangle = image_drawRectangle16;
fill_rectangle = image_fillRectangle16;
copy_area = image_copyArea16;
copy_area_ablend_sda = image_copyAreaSP16_shadow15;
copy_area_ablend_sd = image_copyAreaSP16_alphaBlend15;
copy_area_alevel = image_copyAreaSP16_alphaLevel15;
copy_area_wlevel = image_copyAreaSP16_whiteLevel15;
copy_from_alpha = image_copy_from_alpha15;
copy_to_alpha = image_copy_to_alpha15;
wrap_color = image_wrapColor15;
copy_area_sprite = image_copyAreaSP16_transparent16;
draw_antialiased_pattern = image_draw_antialiased_pattern15;
break;
case 16:
draw_image24_from_data = drawImage24_fromData16;
draw_sprite16_from_data = drawSprite16_fromData16;
draw_image16_from_data = drawImage16_fromData16;
draw_line = image_drawLine16;
draw_rectangle = image_drawRectangle16;
fill_rectangle = image_fillRectangle16;
copy_area = image_copyArea16;
copy_area_ablend_sda = image_copyAreaSP16_shadow16;
copy_area_ablend_sd = image_copyAreaSP16_alphaBlend16;
copy_area_alevel = image_copyAreaSP16_alphaLevel16;
copy_area_wlevel = image_copyAreaSP16_whiteLevel16;
copy_from_alpha = image_copy_from_alpha16;
copy_to_alpha = image_copy_to_alpha16;
wrap_color = image_wrapColor16;
copy_area_sprite = image_copyAreaSP16_transparent16;
draw_antialiased_pattern = image_draw_antialiased_pattern16;
break;
case 24:
case 32:
//draw_image24_from_data = drawImage24_fromData32;
draw_sprite16_from_data = drawSprite16_fromData24;
draw_image16_from_data = drawImage16_fromData24;
draw_line = image_drawLine24;
draw_rectangle = image_drawRectangle24;
fill_rectangle = image_fillRectangle24;
copy_area = image_copyArea24;
copy_area_ablend_sda = image_copyAreaSP16_shadow24;
copy_area_ablend_sd = image_copyAreaSP16_alphaBlend24;
copy_area_alevel = image_copyAreaSP16_alphaLevel24;
copy_area_wlevel = image_copyAreaSP16_whiteLevel24;
copy_from_alpha = image_copy_from_alpha24;
copy_to_alpha = image_copy_to_alpha24;
wrap_color = image_wrapColor24;
copy_area_sprite = image_copyAreaSP16_transparent24;
draw_antialiased_pattern = image_draw_antialiased_pattern24;
break;
default:
break;
}
}
static void trans_index2pixels(int depth, int lv, cgdata *cg) {
Pallet256 *pal;
int i, i_st = 0, i_ed = 256, r, g, b;
if (cg == NULL) {
pal = nact->sys_pal;
} else {
pal = cg->pal;
if (cg->type == ALCG_VSP) {
i_st = (cg->vsp_bank << 4);
i_ed = i_st + 16;
}
}
switch(depth) {
case 8:
for (i = i_st; i < i_ed; i++) {
xpal[i].r = pal->red [i];
xpal[i].g = pal->green[i];
xpal[i].b = pal->blue [i];
xpal[i].pixel = i;
}
break;
case 15:
if (lv == 255) {
for (i = i_st; i < i_ed; i++) {
xpal[i].pixel = PIX15(pal->red[i], pal->green[i], pal->blue[i]);
}
} else if (lv < 255) {
for (i = i_st; i < i_ed; i++) {
xpal[i].pixel = PIX15((pal->red [i]*lv)>>8,
(pal->green[i]*lv)>>8,
(pal->blue [i]*lv)>>8);
}
} else {
lv -= 255;
for (i = i_st; i < i_ed; i++) {
r = pal->red[i];
g = pal->green[i];
b = pal->blue[i];
xpal[i].pixel = PIX15((((255-r)*lv)>>8)+r,
(((255-g)*lv)>>8)+g,
(((255-b)*lv)>>8)+b);
}
}
break;
case 16:
if (lv == 255) {
for (i = i_st; i < i_ed; i++) {
xpal[i].pixel = PIX16(pal->red[i], pal->green[i], pal->blue[i]);
}
} else if (lv < 255) {
for (i = i_st; i < i_ed; i++) {
xpal[i].pixel = PIX16((pal->red [i]*lv)>>8,
(pal->green[i]*lv)>>8,
(pal->blue [i]*lv)>>8);
}
} else {
lv -= 255;
for (i = i_st; i < i_ed; i++) {
r = pal->red[i];
g = pal->green[i];
b = pal->blue[i];
xpal[i].pixel = PIX16((((255-r)*lv)>>8)+r,
(((255-g)*lv)>>8)+g,
(((255-b)*lv)>>8)+b);
}
}
break;
case 24:
case 32:
if (lv == 255) {
for (i = i_st; i < i_ed; i++) {
xpal[i].pixel = PIX24(pal->red[i], pal->green[i], pal->blue[i]);
}
} else if (lv < 255) {
for (i = i_st; i < i_ed; i++) {
xpal[i].pixel = PIX24((pal->red [i]*lv)>>8,
(pal->green [i]*lv)>>8,
(pal->blue [i]*lv)>>8);
}
} else {
lv -= 255;
for (i = i_st; i < i_ed; i++) {
r = pal->red[i];
g = pal->green[i];
b = pal->blue[i];
xpal[i].pixel = PIX24((((255-r)*lv)>>8)+r,
(((255-g)*lv)>>8)+g,
(((255-b)*lv)>>8)+b);
}
}
break;
default:
WARNING("Unknown depth\n");
break;
}
nact->sys_pal_changed = FALSE;
}
static int trans_index2pixel(int depth, int i) {
Pallet256 *pal = nact->sys_pal;
switch(depth) {
case 8:
return i;
case 15:
return PIX15(pal->red[i], pal->green[i], pal->blue[i]);
case 16:
return PIX16(pal->red[i], pal->green[i], pal->blue[i]);
case 24:
case 32:
return PIX24(pal->red[i], pal->green[i], pal->blue[i]);
default:
WARNING("Unknown depth\n");
return i;
}
}
/* 16bitCGの ALPHALEVELを指定 */
BYTE *changeImage16AlphaLevel(cgdata *cg) {
WORD *new_pic = malloc(sizeof(WORD) * cg->width * cg->height), *new_pic_;
WORD *pic = (WORD *)cg->pic;
int pixels = cg->width * cg->height;
new_pic_ = new_pic;
while (pixels--) {
*new_pic = RGB_ALPHALEVEL16(*pic, cg->alphalevel);
new_pic++; pic++;
}
return (BYTE *)new_pic_;
}
/* 色の拡大 */
void image_expandPixel(agsurface_t *img_src, agsurface_t *img_dst, int lv) {
static int prelv = 0;
if (img_src->depth != 8) return;
if (nact->sys_pal_changed || prelv != lv) trans_index2pixels(img_dst->depth, lv, NULL);
switch(img_dst->bytes_per_pixel) {
case 2:
expandPixel8to16(img_src, img_dst);
break;
case 3:
expandPixel8to24p(img_src, img_dst);
break;
case 4:
expandPixel8to24(img_src, img_dst);
break;
default:
break;
}
prelv = lv;
}
/*
fade out for 16/24/32
*/
void image_fadeOut(agsurface_t *img, int lv, int col) {
switch(img->bytes_per_pixel) {
case 2:
fadeOut16(img, lv, col); break;
case 3:
fadeOut24p(img, lv, col); break;
case 4:
fadeOut24(img, lv, col); break;
default:
break;
}
}
/*
fade in for 16/24/32
*/
void image_fadeIn(agsurface_t *src, agsurface_t *dst, int lv) {
switch(dst->bytes_per_pixel) {
case 2:
fadeIn16(src, dst, lv); break;
case 3:
fadeIn24p(src, dst, lv); break;
case 4:
fadeIn24(src, dst, lv); break;
default:
break;
}
}
/*
* 拡大・縮小コピー
*/
void image_scaledCopyArea(agsurface_t *src, agsurface_t *dst, int sx, int sy, int sw, int sh, int dx, int dy, int dw, int dh, int mirror) {
float a1, a2, xd, yd;
int *row, *col;
int x, y;
BYTE *sdata, *ddata;
agsurface_t *srccpy = NULL;
/* src が NULL の場合,領域が重なる場合を考えて copy を作る */
if (src == NULL) {
srccpy = image_saveRegion(dst, sx, sy, sw, sh);
src = srccpy;
sx = sy = 0;
}
sdata = GETOFFSET_PIXEL(src, sx, sy);
ddata = GETOFFSET_PIXEL(dst, dx, dy);
a1 = (float)sw / (float)dw;
a2 = (float)sh / (float)dh;
// src width と dst width が同じときに問題があるので+1
row = calloc(dw+1, sizeof(int));
// 1おおきくして初期化しないと col[dw-1]とcol[dw]が同じになる
// 可能性がある。
col = calloc(dh+1, sizeof(int));
if (mirror & 1) {
/* 上下反転 added by tajiri@wizard */
for (yd = sh - a2, y = 0; y < dh; y++) {
col[y] = yd; yd -= a2;
}
} else {
for (yd = 0.0, y = 0; y < dh; y++) {
col[y] = yd; yd += a2;
}
}
if (mirror & 2) {
/* 左右反転 added by tajiri@wizard */
for (xd = sw - a1, x = 0; x < dw; x++) {
row[x] = xd; xd -= a1;
}
} else {
for (xd = 0.0, x = 0; x < dw; x++) {
row[x] = xd; xd += a1;
}
}
#define SCALEDCOPYAREA(type) { \
int x, y; \
type *sl, *dl; \
BYTE *_sl, *_dl; \
for (y = 0; y < dh; y++) { \
sl = (type *)(sdata + *(y + col) * src->bytes_per_line);\
dl = (type *)(ddata + y * dst->bytes_per_line);\
for (x = 0; x < dw; x++) { \
*(dl + x) = *(sl + *(row + x)); \
} \
_dl = (BYTE *)dl; \
while(*(col + y) == *(col + y + 1)) { \
_sl = _dl; \
_dl += dst->bytes_per_line; \
memcpy(_dl, _sl, dw * sizeof(type)); \
y++; \
} \
}}
switch(dst->depth) {
case 8:
SCALEDCOPYAREA(BYTE); break;
case 15:
case 16:
SCALEDCOPYAREA(WORD); break;
case 24:
case 32:
SCALEDCOPYAREA(DWORD); break;
default:
break;
}
free(row);
free(col);
if (srccpy != NULL) {
image_delRegion(srccpy);
}
}
/*
* dibに8bitCGの描画
*/
void image_drawImage8_fromData(agsurface_t *dib, cgdata *cg, int dx, int dy, int w, int h) {
#define DRAWSPRITEFROMDATA8(type) { \
int x, y; \
BYTE *pic_src = cg->pic + cg->data_offset; \
BYTE *pic_dst = GETOFFSET_PIXEL(dib, dx, dy); \
type *yl; \
for (y = 0; y < h; y++) { \
yl = (type *)(pic_dst + y * dib->bytes_per_line);\
for (x = 0; x < w; x++) { \
if (*pic_src != (BYTE)cg->spritecolor) { \
*yl = xpal[(*pic_src)].pixel; \
} \
yl++; pic_src++; \
} \
pic_src += (cg->width - w); \
}}
#define DRAWIMAGEFROMDATA8(type) { \
int x, y; \
BYTE *pic_src = cg->pic + cg->data_offset; \
BYTE *pic_dst = GETOFFSET_PIXEL(dib, dx, dy); \
type *yl; \
for (y = 0; y <h; y++) { \
yl = (type *)(pic_dst + y * dib->bytes_per_line);\
for (x = 0; x < w; x++) { \
*yl = xpal[(*pic_src)].pixel; \
yl++; pic_src++; \
} \
pic_src += (cg->width - w); \
}}
if (cg->spritecolor >= 0) {
switch(dib->depth) {
case 8:
{
int x, y;
BYTE *pic_src = cg->pic + cg->data_offset;
BYTE *pic_dst = GETOFFSET_PIXEL(dib, dx, dy);
BYTE *yl;
for (y = 0; y < h; y++) {
yl = (BYTE *)(pic_dst + y * dib->bytes_per_line);
for (x = 0; x < w; x++) {
if (*pic_src != (BYTE)cg->spritecolor) {
*yl = (*pic_src);
}
yl++; pic_src++;
}
pic_src += (cg->width - w);
}
break;
}
case 15:
case 16:
if (nact->sys_pal_changed)
trans_index2pixels(dib->depth, cg->alphalevel, cg);
DRAWSPRITEFROMDATA8(WORD); break;
case 24:
case 32:
if (nact->sys_pal_changed)
trans_index2pixels(dib->depth, cg->alphalevel, cg);
DRAWSPRITEFROMDATA8(DWORD); break;
default:
break;
}
} else {
switch(dib->depth) {
case 8:
{
int y;
BYTE* pic_src = cg->pic + cg->data_offset;
BYTE* pic_dst = GETOFFSET_PIXEL(dib, dx, dy);
for (y = 0; y < h; y++) {
memcpy(pic_dst, pic_src, w);
pic_src += cg->width;
pic_dst += dib->bytes_per_line;
}
break;
}
case 15:
case 16:
if (nact->sys_pal_changed)
trans_index2pixels(dib->depth, cg->alphalevel, cg);
DRAWIMAGEFROMDATA8(WORD); break;
case 24:
case 32:
if (nact->sys_pal_changed)
trans_index2pixels(dib->depth, cg->alphalevel, cg);
DRAWIMAGEFROMDATA8(DWORD); break;
default:
break;
}
}
}
/*
* dibに16bitCGの描画
*/
void image_drawImage16_fromData(agsurface_t *dib, cgdata *cg, int x, int y, int w, int h) {
BYTE *pic_save = NULL;
/* set alpha Level */
if (cg->alphalevel != 255) {
pic_save = cg->pic;
cg->pic = changeImage16AlphaLevel(cg);
}
if (cg->spritecolor >= 0) {
draw_sprite16_from_data(dib, cg, x, y, w, h);
} else {
draw_image16_from_data(dib, cg, x, y, w, h);
}
if (cg->alphalevel != 255) {
free(cg->pic);
cg->pic = pic_save;
}
}
/*
* dib に線を描画
*/
void image_drawLine(agsurface_t *dib, int x0, int y0, int x1, int y1, int col) {
draw_line(dib, x0, y0, x1, y1, col);
}
/*
* dib に矩形を描画
*/
void image_drawRectangle(agsurface_t *dib, int x, int y, int w, int h, int col) {
draw_rectangle(dib, x, y, w, h, col);
}
/*
* dib に矩形塗りつぶしを描画
*/
void image_fillRectangle(agsurface_t *dib, int x, int y, int w, int h, int col) {
fill_rectangle(dib, x, y, w, h, col);
}
void image_fillRectangleNeg(agsurface_t *dib, int x, int y, int w, int h, int col) {
fill_rectangle(dib, x, y, w, h, -1 ^ trans_index2pixel(dib->depth, col));
}
/*
* dib の指定領域をコピー
*/
void image_copyArea(agsurface_t *dib, int sx, int sy, int w, int h, int dx, int dy) {
copy_area(dib, sx, sy, w, h, dx, dy);
}
/*
* 16bit専用の dib の指定領域コピー alphaつき
*/
void image_copyAreaSP16_shadow(agsurface_t *dib, int sx, int sy, int w, int h, int dx, int dy, int lv) {
BYTE *sdata = GETOFFSET_PIXEL(dib, sx, sy);
BYTE *ddata = GETOFFSET_PIXEL(dib, dx, dy);
BYTE *adata = GETOFFSET_ALPHA(dib, sx, sy);
copy_area_ablend_sda(dib, sdata, ddata, w, h, adata, lv);
}
/*
* 16bit専用の dib の指定領域コピー
* srcのイメージを lvの明度でコピー CE 2001
*/
void image_copyAreaSP16_alphaBlend(agsurface_t *dib, int sx, int sy, int w, int h, int dx, int dy, int lv) {
BYTE *sdata = GETOFFSET_PIXEL(dib, sx, sy);
BYTE *ddata = GETOFFSET_PIXEL(dib, dx, dy);
copy_area_ablend_sd(dib, sdata, ddata, w, h, lv);
}
void image_copyAreaSP16_alphaLevel(agsurface_t *dib, int sx, int sy, int w, int h, int dx, int dy, int lv) {
BYTE *sdata = GETOFFSET_PIXEL(dib, sx, sy);
BYTE *ddata = GETOFFSET_PIXEL(dib, dx, dy);
copy_area_alevel(dib, sdata, ddata, w, h, lv);
}
void image_copyAreaSP16_whiteLevel(agsurface_t *dib, int sx, int sy, int w, int h, int dx, int dy, int lv) {
BYTE *sdata = GETOFFSET_PIXEL(dib, sx, sy);
BYTE *ddata = GETOFFSET_PIXEL(dib, dx, dy);
copy_area_wlevel(dib, sdata, ddata, w, h, lv);
}
void image_copy_from_alpha(agsurface_t *dib, int sx, int sy, int w, int h, int dx, int dy, ALPHA_DIB_COPY_TYPE flag) {
BYTE *sdata = GETOFFSET_ALPHA(dib, sx, sy);
BYTE *ddata = GETOFFSET_PIXEL(dib, dx, dy);
copy_from_alpha(dib, sdata, ddata, w, h, flag);
}
void image_copy_to_alpha(agsurface_t *dib, int sx, int sy, int w, int h, int dx, int dy, ALPHA_DIB_COPY_TYPE flag) {
BYTE *sdata = GETOFFSET_PIXEL(dib, sx, sy);
BYTE *ddata = GETOFFSET_ALPHA(dib, dx, dy);
copy_to_alpha(dib, sdata, ddata, w, h, flag);
}
/*
* 指定範囲にパレット col を rate の割合で重ねる CK1
*/
void image_wrapColor(agsurface_t *dib, int sx, int sy, int w, int h, int col, int rate) {
BYTE *sdata = GETOFFSET_PIXEL(dib, sx, sy);
wrap_color(dib, sdata, w, h, col, rate);
}
/*
* dib のピクセル情報を取得
*/
void image_getPixel(agsurface_t *dib, int x, int y, Pallet *cell) {
BYTE *dst = GETOFFSET_PIXEL(dib, x, y);
switch(dib->depth) {
case 8:
cell->pixel = *dst; break;
case 15:
cell->r = PIXR15(*(WORD *)dst);
cell->g = PIXG15(*(WORD *)dst);
cell->b = PIXB15(*(WORD *)dst);
break;
case 16:
cell->r = PIXR16(*(WORD *)dst);
cell->g = PIXG16(*(WORD *)dst);
cell->b = PIXB16(*(WORD *)dst);
break;
case 24:
case 32:
cell->r = PIXR24(*(DWORD *)dst);
cell->g = PIXG24(*(DWORD *)dst);
cell->b = PIXB24(*(DWORD *)dst);
break;
default:
break;
}
}
/*
* dib から領域の切り出し
*/
agsurface_t* image_saveRegion(agsurface_t *dib, int x, int y, int w, int h) {
agsurface_t *i = malloc(sizeof(agsurface_t));
int j;
BYTE *ys = GETOFFSET_PIXEL(dib, x, y);
BYTE *yd;
// printf("save region %d,%d,%d,%d\n", x, y, w, h);
i->width = w;
i->height = h;
i->bytes_per_line = w * dib->bytes_per_pixel;
i->bytes_per_pixel = dib->bytes_per_pixel;
i->pixel = yd = malloc(sizeof(char) * (w * h * dib->bytes_per_pixel));
for (j = 0; j < h; j++) {
memcpy(yd, ys, w * dib->bytes_per_pixel);
yd += (w * dib->bytes_per_pixel);
ys += dib->bytes_per_line;
}
return i;
}
/*
* dib にセーブした領域を回復
*/
void image_putRegion(agsurface_t *dib, agsurface_t *dst, int x, int y) {
BYTE *yd = GETOFFSET_PIXEL(dib, x, y);
BYTE *ys = GETOFFSET_PIXEL(dst, 0, 0);
int i;
int width, height;
width = dst->width;
height = dst->height;
if (x + width > dib->width) width = dib->width - x;
if (y + height > dib->height) height = dib->height - y;
// printf("dibinfo %d, %d\n", dib->width, dib->height);
// printf("reginfo %d, %d\n", dst->width, dst->height);
// printf("width,height %d, %d\n", width, height);
for (i = 0; i < height; i++) {
memcpy(yd, ys, width * dst->bytes_per_pixel);
ys += (dst->width * dst->bytes_per_pixel);
yd += dib->bytes_per_line;
}
}
/*
* dib に dstを描画後、後始末
*/
void image_restoreRegion(agsurface_t *dib, agsurface_t *dst, int x, int y) {
image_putRegion(dib, dst, x, y);
free(dst->pixel);
free(dst);
}
/*
* save した領域の解放
*/
void image_delRegion(agsurface_t *r) {
free(r->pixel);
free(r);
}
/*
* dib にセーブした領域からコピー
*/
void image_copyRegion(agsurface_t *src, int sx, int sy, int w, int h, agsurface_t *dib, int dx, int dy) {
int y;
BYTE *sdata = GETOFFSET_PIXEL(src, sx, sy);
BYTE *ddata = GETOFFSET_PIXEL(dib, dx, dy);
for (y = 0; y < h; y++) {
memcpy(ddata, sdata, w * dib->bytes_per_pixel);
sdata += src->bytes_per_line;
ddata += dib->bytes_per_line;
}
}
/*
* dibに gpyphイメージを描画
*/
void image_getGlyphImage(agsurface_t *dib, agsurface_t *glyph, int dx, int dy, int col) {
switch(glyph->bytes_per_pixel) {
case 1:
image_getGlyphImage8to8(dib, glyph, dx, dy, col); break;
case 2:
image_getGlyphImage16to16(dib, glyph, dx, dy, col); break;
case 3:
image_getGlyphImage24pto24(dib, glyph, dx, dy, col); break;
case 4:
image_getGlyphImage24to24(dib, glyph, dx, dy, col); break;
default:
break;
}
}
/*
* img : 8bit DIB の先頭
* glyph : 文字の書かれているイメージ (大きさ込) depth 15/16
* dx, dy : 表示位置
* col : 色
*/
static void image_getGlyphImage16to8(agsurface_t *dib, agsurface_t *glyph, int dx, int dy, int col) {
int x, y;
BYTE *dst = GETOFFSET_PIXEL(dib, dx, dy);
BYTE *src = GETOFFSET_PIXEL(glyph, 0, 0);
BYTE *yd;
WORD *ys;
for (y = 0; y < glyph->height; y++) {
ys = (WORD *)(src + y * glyph->bytes_per_line);
yd = dst + y * dib->bytes_per_line;
for (x = 0; x < glyph->width; x++) {
if (*ys != 0) {
*yd = col;
}
ys++; yd++;
}
}
}
static void image_getGlyphImage24to8(agsurface_t *dib, agsurface_t *glyph, int dx, int dy, int col) {
int x, y;
BYTE *dst = GETOFFSET_PIXEL(dib, dx, dy);
BYTE *src = GETOFFSET_PIXEL(glyph, 0, 0);
BYTE *yd;
DWORD *ys;
for (y = 0; y < glyph->height; y++) {
ys = (DWORD *)(src + y * glyph->bytes_per_line);
yd = dst + y * dib->bytes_per_line;
for (x = 0; x < glyph->width; x++) {
if (*ys == 1) {
*yd = col;
}
ys++; yd++;
}
}
}
static void image_getGlyphImage24pto8(agsurface_t *dib, agsurface_t *glyph, int dx, int dy, int col) {
int x, y;
BYTE *dst = GETOFFSET_PIXEL(dib, dx, dy);
BYTE *src = GETOFFSET_PIXEL(glyph, 0, 0);
BYTE *yd;
BYTE *ys;
for (y = 0; y < glyph->height; y++) {
ys = (BYTE *)(src + y * glyph->bytes_per_line);
yd = dst + y * dib->bytes_per_line;
for (x = 0; x < glyph->width; x++) {
if (*ys == 1) {
*yd = col;
}
ys+=3; yd++;
}
}
}
void image_getGlyphImageNto8(agsurface_t *dib, agsurface_t *glyph, int dx, int dy, int col) {
switch(glyph->bytes_per_pixel) {
case 2:
image_getGlyphImage16to8(dib, glyph, dx, dy, col); break;
case 3:
image_getGlyphImage24pto8(dib, glyph, dx, dy, col); break;
case 4:
image_getGlyphImage24to8(dib, glyph, dx, dy, col); break;
}
}
/*
* dib に指定のパレット sp を抜いてコピー
*/
void image_copyAreaSP(agsurface_t *dib, int sx, int sy, int w, int h, int dx, int dy, int col) {
BYTE *sdata = GETOFFSET_PIXEL(dib, sx, sy);
BYTE *ddata = GETOFFSET_PIXEL(dib, dx, dy);
copy_area_sprite(dib, sdata, ddata, w, h, col);
}
int image_index2pixel(int depth, int pal) {
return trans_index2pixel(depth, pal);
}
void image_get_glyph(agsurface_t *gls, agsurface_t *gld) {
BYTE *dst = GETOFFSET_PIXEL(gld, 0, 0);
int x, y;
int dw = gls->width, dh = gls->height;
switch(gls->bytes_per_pixel) {
case 1:
{
BYTE *src = GETOFFSET_PIXEL(gls, 0, 0);
for (y = 0; y < dh; y++) {
memcpy(dst, src, dw);
src += gls->bytes_per_line;
dst += gld->bytes_per_line;
}
break;
}
case 2:
{
WORD *src;
for (y = 0; y < dh; y++) {
src = (WORD *)(gls->pixel + y * gls->bytes_per_line);
dst = (BYTE *)(gld->pixel + y * gld->bytes_per_line);
for (x = 0; x < dw; x++) {
*dst = (*src) ? 1 : 0;
src++; dst++;
}
}
break;
}
case 3:
{
BYTE *src;
for (y = 0; y < dh; y++) {
src = (BYTE *)(gls->pixel + y * gls->bytes_per_line);
dst = (BYTE *)(gld->pixel + y * gld->bytes_per_line);
for (x = 0; x < dw; x++) {
*dst = (*src) ? 1 : 0;
src+=3; dst++;
}
}
break;
}
case 4:
{
DWORD *src;
for (y = 0; y < dh; y++) {
src = (DWORD *)(gls->pixel + y * gls->bytes_per_line);
dst = (BYTE *)(gld->pixel + y * gld->bytes_per_line);
for (x = 0; x < dw; x++) {
*dst = (*src) ? 1 : 0;
src++; dst++;
}
}
break;
}
}
}
void image_draw_antialiased_pattern(agsurface_t *dib, agsurface_t *pattern, int dx, int dy, int dw, int dh, int col) {
draw_antialiased_pattern(dib, pattern, dx, dy, dw, dh, col);
}
void image_draw_pattern(agsurface_t *dib, agsurface_t *pattern, int dx, int dy, int dw, int dh, int col) {
#define DRAWPATTERN(type) { \
int x, y; \
BYTE *dst = GETOFFSET_PIXEL(dib, dx, dy); \
BYTE *src = (BYTE *)pattern->pixel; \
type *yd; \
BYTE *ys; \
for (y = 0; y < dh; y++) { \
ys = (BYTE *)(src + y * pattern->bytes_per_line); \
yd = (type *)(dst + y * dib->bytes_per_line); \
for (x = 0; x < dw; x++) { \
if (*ys) { \
*yd = col; \
} \
ys++; yd++; \
} \
}}
switch(dib->depth) {
case 8:
DRAWPATTERN(BYTE); break;
case 15:
case 16:
DRAWPATTERN(WORD); break;
case 24:
case 32:
DRAWPATTERN(DWORD); break;
}
}
/* モザイク */
void image_Mosaic(agsurface_t *dib, int sx, int sy, int w, int h, int dx, int dy, int slice) {
#define m_mozaic(type) { \
type *p_ss = (type *)GETOFFSET_PIXEL(dib, sx, sy); \
type *p_src; \
int l = dib->bytes_per_line / dib->bytes_per_pixel * slice; \
for (y = 0; y < h; y += slice) { \
p_src = p_ss; \
if ((y + slice) > h ) r.height = h - y; \
r.width = slice; \
for (x = 0; x < w; x += slice) { \
cl = *p_src; \
r.x = dx + x; \
r.y = dy + y; \
if ((r.x + slice) > w) r.width = w - x; \
fill_rectangle(dib, r.x, r.y, r.width, r.height, cl); \
p_src += slice; \
} \
p_ss += l; \
}}
int cl;
int x,y;
MyRectangle r;
r.width=slice;
r.height=slice;
switch(dib->depth) {
case 8:
m_mozaic(BYTE);
break;
case 16:
m_mozaic(WORD);
break;
case 24:
case 32:
m_mozaic(DWORD);
break;
}
}
/******************************************************************************/
/* private methods image操作 8bpp */
/******************************************************************************/
static void image_drawLine8(agsurface_t *dib, int x0, int y0, int x1, int y1, int col) {
int dx = abs(x0 - x1), dy = abs(y0 - y1);
BYTE *p;
if (dx == 0) {
int i = min(y0, y1);
p = GETOFFSET_PIXEL(dib, x0, i);
for (i = 0; i < dy; i++) {
*p = col;
p += dib->bytes_per_line;
}
} else if (dy == 0) {
int i = min(x0, x1);
p = GETOFFSET_PIXEL(dib, i, y0);
memset(p, col, dx);
} else if (dx == dy) {
int i;
if (x0 < x1) {
p = GETOFFSET_PIXEL(dib, x0, y0);
if (y0 < y1) {
dy = dib->bytes_per_line + dib->bytes_per_pixel;
} else {
dy = -dib->bytes_per_line + dib->bytes_per_pixel;
}
} else {
p = GETOFFSET_PIXEL(dib, x1, y1);
if (y0 < y1) {
dy = -dib->bytes_per_line + dib->bytes_per_pixel;
} else {
dy = dib->bytes_per_line + dib->bytes_per_pixel;
}
}
for (i = 0; i < dx; i++) {
*p = col;
p += dy;
}
} else {
int i, d1, d2, ds, dd, imax;
if (dx < dy) {
d1 = dib->bytes_per_line;
if (y0 > y1) {
p = GETOFFSET_PIXEL(dib, x1, y1);
d2 = dib->bytes_per_pixel * (x0 < x1 ? -1 : 1);
} else {
p = GETOFFSET_PIXEL(dib, x0, y0);
d2 = dib->bytes_per_pixel * (x0 < x1 ? 1 : -1);
}
ds = dx;
imax = dy;
} else {
d1 = dib->bytes_per_pixel;
if (x0 > x1) {
p = GETOFFSET_PIXEL(dib, x1, y1);
d2 = dib->bytes_per_line * (y0 < y1 ? -1 : 1);
} else {
p = GETOFFSET_PIXEL(dib, x0, y0);
d2 = dib->bytes_per_line * (y0 < y1 ? 1 : -1);
}
ds = dy;
imax = dx;
}
dd = 0;
for (i = 0; i < imax; i++) {
*p = col;
p += d1;
dd += ds;
if (dd > imax) {
p += d2;
dd -= imax;
}
}
}
}
static void image_drawRectangle8(agsurface_t *dib, int x, int y, int w, int h, int col) {
BYTE *dst = GETOFFSET_PIXEL(dib, x, y);
int i;
/* top */
memset(dst, col, w);
/* side */
h-=2;
for (i = 0; i < h; i++) {
dst += dib->bytes_per_line;
*dst = col;
*(dst + w - 1) = col;
}
/* bottom */
dst += dib->bytes_per_line;
memset(dst, col, w);
}
static void image_fillRectangle8(agsurface_t *dib, int x, int y, int w, int h, int col) {
BYTE *dst = GETOFFSET_PIXEL(dib, x, y);
int i;
for (i = 0; i < h; i++) {
memset(dst, col, w);
dst += dib->bytes_per_line;
}
}
static void image_copyArea8(agsurface_t *dib, int sx, int sy, int w, int h, int dx, int dy) {
BYTE *src = GETOFFSET_PIXEL(dib, sx, sy);
BYTE *dst = GETOFFSET_PIXEL(dib, dx, dy);
if (sy <= dy && dy < (sy + h)) {
src += (h-1) * dib->bytes_per_line;
dst += (h-1) * dib->bytes_per_line;
while (h--) {
memmove(dst, src, w);
src -= dib->bytes_per_line;
dst -= dib->bytes_per_line;
}
} else {
while(h--) {
memmove(dst, src, w);
src += dib->bytes_per_line;
dst += dib->bytes_per_line;
}
}
}
static void image_getGlyphImage8to8(agsurface_t *dib, agsurface_t *glyph, int dx, int dy, int col) {
int x, y;
BYTE *dst = GETOFFSET_PIXEL(dib, dx, dy);
BYTE *src = GETOFFSET_PIXEL(glyph, 0, 0);
BYTE *yd;
BYTE *ys;
for (y = 0; y < glyph->height; y++) {
ys = src + y * glyph->bytes_per_line;
yd = dst + y * dib->bytes_per_line;
for (x = 0; x < glyph->width; x++) {
if (*ys != 0) {
*yd = col;
}
ys++; yd++;
}
}
}
static void image_copyAreaSP8(agsurface_t *dib, BYTE *sdata, BYTE *ddata, int width, int height, int sp) {
int x, y;
BYTE *pix_dst, *pix_src;
for (y = 0; y < height; y++) {
pix_src = (BYTE *)(sdata + y * dib->bytes_per_line);
pix_dst = (BYTE *)(ddata + y * dib->bytes_per_line);
for (x = 0; x < width; x++) {
if (*pix_src != (BYTE)sp) {
*pix_dst = *pix_src;
}
pix_src++;
pix_dst++;
}
}
}
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