mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-24 18:56:33 +00:00
3abc11611e
svn-id: r28945
235 lines
6.2 KiB
C++
235 lines
6.2 KiB
C++
/* ScummVM - Graphic Adventure Engine
|
|
*
|
|
* ScummVM is the legal property of its developers, whose names
|
|
* are too numerous to list here. Please refer to the COPYRIGHT
|
|
* file distributed with this source distribution.
|
|
*
|
|
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* $URL$
|
|
* $Id$
|
|
*
|
|
*/
|
|
|
|
#include <ronin/ronin.h>
|
|
#include <string.h>
|
|
|
|
#include "icon.h"
|
|
|
|
void Icon::create_vmicon(void *buffer)
|
|
{
|
|
unsigned short *pal = (unsigned short *)buffer;
|
|
unsigned char *pix = ((unsigned char *)buffer)+32;
|
|
|
|
for (int n = 0; n<16; n++) {
|
|
int p = palette[n];
|
|
pal[n] =
|
|
((p>>16)&0xf000)|
|
|
((p>>12)&0x0f00)|
|
|
((p>> 8)&0x00f0)|
|
|
((p>> 4)&0x000f);
|
|
}
|
|
|
|
for (int line = 0; line < 32; line++) {
|
|
memcpy(pix, &bitmap[32/2*(31-line)], 32/2);
|
|
pix += 32/2;
|
|
}
|
|
}
|
|
|
|
void Icon::create_texture()
|
|
{
|
|
static char tt[16] = { 0, 1, 4, 5, 16, 17, 20, 21,
|
|
64, 65, 68, 69, 80, 81, 84, 85 };
|
|
unsigned short *tex = (unsigned short *)ta_txalloc(512);
|
|
unsigned short *linebase;
|
|
unsigned char *src = bitmap+sizeof(bitmap)-17;
|
|
for (int y=0; y<16; y++) {
|
|
linebase = tex + (tt[y]<<1);
|
|
for (int x=0; x<16; x++, --src)
|
|
linebase[tt[x]] = src[16]|(src[0]<<8);
|
|
src -= 16;
|
|
}
|
|
texture = tex;
|
|
}
|
|
|
|
void Icon::setPalette(int pal)
|
|
{
|
|
unsigned int (*hwpal)[64][16] = (unsigned int (*)[64][16])0xa05f9000;
|
|
for (int n = 0; n<16; n++)
|
|
(*hwpal)[pal][n] = palette[n];
|
|
}
|
|
|
|
void Icon::draw(float x1, float y1, float x2, float y2, int pal,
|
|
unsigned int argb)
|
|
{
|
|
struct polygon_list mypoly;
|
|
struct packed_colour_vertex_list myvertex;
|
|
|
|
mypoly.cmd =
|
|
TA_CMD_POLYGON|TA_CMD_POLYGON_TYPE_TRANSPARENT|TA_CMD_POLYGON_SUBLIST|
|
|
TA_CMD_POLYGON_STRIPLENGTH_2|TA_CMD_POLYGON_PACKED_COLOUR|TA_CMD_POLYGON_TEXTURED;
|
|
mypoly.mode1 = TA_POLYMODE1_Z_ALWAYS|TA_POLYMODE1_NO_Z_UPDATE;
|
|
mypoly.mode2 =
|
|
TA_POLYMODE2_BLEND_SRC_ALPHA|TA_POLYMODE2_BLEND_DST_INVALPHA|
|
|
TA_POLYMODE2_FOG_DISABLED|TA_POLYMODE2_ENABLE_ALPHA|
|
|
TA_POLYMODE2_TEXTURE_MODULATE_ALPHA|TA_POLYMODE2_U_SIZE_32|
|
|
TA_POLYMODE2_V_SIZE_32;
|
|
mypoly.texture = TA_TEXTUREMODE_CLUT4|TA_TEXTUREMODE_CLUTBANK4(pal)|
|
|
TA_TEXTUREMODE_ADDRESS(texture);
|
|
|
|
mypoly.red = mypoly.green = mypoly.blue = mypoly.alpha = 0;
|
|
|
|
ta_commit_list(&mypoly);
|
|
|
|
myvertex.cmd = TA_CMD_VERTEX;
|
|
myvertex.ocolour = 0;
|
|
myvertex.colour = argb;
|
|
myvertex.z = 0.5;
|
|
myvertex.u = 0.0;
|
|
myvertex.v = 1.0;
|
|
|
|
myvertex.x = x1;
|
|
myvertex.y = y1;
|
|
ta_commit_list(&myvertex);
|
|
|
|
myvertex.x = x2;
|
|
myvertex.v = 0.0;
|
|
ta_commit_list(&myvertex);
|
|
|
|
myvertex.x = x1;
|
|
myvertex.y = y2;
|
|
myvertex.u = 1.0;
|
|
myvertex.v = 1.0;
|
|
ta_commit_list(&myvertex);
|
|
|
|
myvertex.x = x2;
|
|
myvertex.v = 0.0;
|
|
myvertex.cmd |= TA_CMD_VERTEX_EOS;
|
|
ta_commit_list(&myvertex);
|
|
}
|
|
|
|
int Icon::find_unused_pixel()
|
|
{
|
|
int use[16];
|
|
memset(use, 0, sizeof(use));
|
|
for (int n=0; n<32*32/2; n++) {
|
|
unsigned char pix = bitmap[n];
|
|
use[pix&0xf]++;
|
|
use[pix>>4]++;
|
|
}
|
|
for (int i=0; i<16; i++)
|
|
if (!use[i])
|
|
return i;
|
|
return -1;
|
|
}
|
|
|
|
bool Icon::load_image2(const void *data, int len)
|
|
{
|
|
struct {
|
|
int size, w, h;
|
|
short pla, bitcnt;
|
|
int comp, sizeimg, xres, yres, used, imp;
|
|
} hdr;
|
|
if (len < 40)
|
|
return false;
|
|
memcpy(&hdr, data, 40);
|
|
if (hdr.size != 40 || /* hdr.sizeimg<=0 || */ hdr.w<0 || hdr.h<0 ||
|
|
hdr.bitcnt<0 || hdr.used<0)
|
|
return false;
|
|
if (!hdr.used)
|
|
hdr.used = 1<<hdr.bitcnt;
|
|
hdr.h >>= 1;
|
|
/* Fix incorrect sizeimg (The Dig) */
|
|
if (hdr.sizeimg < ((hdr.w*hdr.h*(1+hdr.bitcnt)+7)>>3))
|
|
hdr.sizeimg = ((hdr.w*hdr.h*(1+hdr.bitcnt)+7)>>3);
|
|
if (hdr.size + (hdr.used<<2) + hdr.sizeimg > len /* ||
|
|
hdr.sizeimg < ((hdr.w*hdr.h*(1+hdr.bitcnt)+7)>>3) */)
|
|
return false;
|
|
if (hdr.w != 32 || hdr.h != 32 || hdr.bitcnt != 4 || hdr.used > 16)
|
|
return false;
|
|
memcpy(palette, ((const char *)data)+hdr.size, hdr.used<<2);
|
|
memcpy(bitmap, ((const char *)data)+hdr.size+(hdr.used<<2), 32*32/2);
|
|
for (int i=0; i<16; i++)
|
|
palette[i] |= 0xff000000;
|
|
for (int i=hdr.used; i<16; i++)
|
|
palette[i] = 0;
|
|
int unused = find_unused_pixel();
|
|
if (unused >= 0) {
|
|
const unsigned char *mask =
|
|
((const unsigned char *)data)+hdr.size+(hdr.used<<2)+32*32/2;
|
|
unsigned char *pix = bitmap;
|
|
for (int y=0; y<32; y++)
|
|
for (int x=0; x<32/8; x++) {
|
|
unsigned char mbits = *mask++;
|
|
for (int z=0; z<4; z++) {
|
|
unsigned char pbits = *pix;
|
|
if (mbits & 64) pbits = (pbits & ~0xf) | unused;
|
|
if (mbits & 128) pbits = (pbits & 0xf) | (unused << 4);
|
|
*pix++ = pbits;
|
|
mbits <<= 2;
|
|
}
|
|
}
|
|
palette[unused] = 0;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool Icon::load_image1(const void *data, int len, int offs)
|
|
{
|
|
struct {
|
|
char w, h, colors, rsrv;
|
|
short pla, bitcnt;
|
|
int bytes, offs;
|
|
} hdr;
|
|
if (len < offs+16)
|
|
return false;
|
|
memcpy(&hdr, ((const char *)data)+offs, 16);
|
|
if (hdr.bytes > 0 && hdr.offs >= 0 && hdr.offs+hdr.bytes <= len)
|
|
return load_image2(((const char *)data)+hdr.offs, hdr.bytes);
|
|
else
|
|
return false;
|
|
}
|
|
|
|
bool Icon::load(const void *data, int len, int offs)
|
|
{
|
|
struct { short rsrv, type, cnt; } hdr;
|
|
memset(bitmap, 0, sizeof(bitmap));
|
|
memset(palette, 0, sizeof(palette));
|
|
texture = NULL;
|
|
if (len < offs+6)
|
|
return false;
|
|
memcpy(&hdr, ((const char *)data)+offs, 6);
|
|
if (hdr.type != 1 || hdr.cnt < 1 || offs+6+(hdr.cnt<<4) > len)
|
|
return false;
|
|
for (int i=0; i<hdr.cnt; i++)
|
|
if (load_image1(data, len, offs+6+(i<<4)))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
bool Icon::load(const char *filename)
|
|
{
|
|
char buf[2048];
|
|
int fd;
|
|
if ((fd = open(filename, O_RDONLY))>=0) {
|
|
int sz;
|
|
sz = read(fd, buf, sizeof(buf));
|
|
close(fd);
|
|
if (sz>0)
|
|
return load(buf, sz);
|
|
}
|
|
return false;
|
|
}
|