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/* 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 "label.h"
void *get_romfont_address() __asm__(".get_romfont_address");
__asm__("\
\n\
.get_romfont_address: \n\
mov.l 1f,r0 \n\
mov.l @r0,r0 \n\
jmp @r0 \n\
mov #0,r1 \n\
.align 2 \n\
1: .long 0x8c0000b4 \n\
\n\
");
static void draw_char(unsigned short *dst, int mod, int c, void *font_base)
{
unsigned char *src;
int i, j;
if (c<=32 || c>255 || (c>=127 && c<160)) c=160;
if (c<128) c -= 32; else c -= 64;
src = c*36 + (unsigned char *)font_base;
for (i=0; i<12; i++) {
int n = (src[0]<<16)|(src[1]<<8)|src[2];
for (j=0; j<12; j++, n<<=1)
if (n & (1<<23)) {
dst[j] = 0xffff;
dst[j+1] = 0xffff;
dst[j+2] = 0xa108;
dst[j+mod] = 0xa108;
dst[j+mod+1] = 0xa108;
}
dst += mod;
for (j=0; j<12; j++, n<<=1)
if (n & (1<<23)) {
dst[j] = 0xffff;
dst[j+1] = 0xffff;
dst[j+2] = 0xa108;
dst[j+mod] = 0xa108;
dst[j+mod+1] = 0xa108;
}
dst += mod;
src += 3;
}
}
void Label::create_texture(const char *text)
{
void *font = get_romfont_address();
int l = strlen(text);
if (l>64) l=64;
int w = 14*l;
for (tex_u=TA_POLYMODE2_U_SIZE_8, u=8; u<w; u<<=1, tex_u += 1<<3);
int tsz = u*32;
unsigned short *tex = (unsigned short *)ta_txalloc(tsz*2);
for (int i=0; i<tsz; i++)
tex[i] = 0;
int p=l*14;
while (l>0)
draw_char(tex+(p-=14), u, text[--l], font);
texture = tex;
}
void Label::draw(float x, float y, unsigned int argb, float scale)
{
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_V_SIZE_32|tex_u;
mypoly.texture = TA_TEXTUREMODE_ARGB1555|TA_TEXTUREMODE_NON_TWIDDLED|
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 = 0.0;
myvertex.x = x;
myvertex.y = y;
ta_commit_list(&myvertex);
myvertex.x = x+u*scale;
myvertex.u = 1.0;
ta_commit_list(&myvertex);
myvertex.x = x;
myvertex.y = y+25.0*scale;
myvertex.u = 0.0;
myvertex.v = 25.0/32.0;
ta_commit_list(&myvertex);
myvertex.x = x+u*scale;
myvertex.u = 1.0;
myvertex.cmd |= TA_CMD_VERTEX_EOS;
ta_commit_list(&myvertex);
}
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