kolibrios/programs/cmm/lib/draw_buf.h

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#ifndef INCLUDE_DRAW_BUF_H
#define INCLUDE_DRAW_BUF_H
#print "[include <draw_buf.h>]\n"
#ifndef INCLUDE_KOLIBRI_H
#include "../lib/kolibri.h"
#endif
dword buf_data;
struct DrawBufer {
dword bufx, bufy, bufw, bufh;
dword fill_color;
bool Init();
void Show();
void Fill();
void DrawBar();
void WriteText();
void PutPixel();
void AlignCenter();
void AlignRight();
void IncreaseBufSize();
};
char draw_buf_not_enaught_ram[] =
"'DrawBufer needs more memory than currenly available.
Application could be unstable.
Requested size: %i Mb
Free RAM: %i Mb' -E";
bool DrawBufer::Init(dword i_bufx, i_bufy, i_bufw, i_bufh)
{
bufx = i_bufx;
bufy = i_bufy;
bufw = i_bufw;
bufh = i_bufh;
buf_data = free(buf_data);
IncreaseBufSize();
if (!buf_data) return false;
ESDWORD[buf_data] = bufw;
ESDWORD[buf_data+4] = bufh;
return true;
}
void DrawBufer::Fill(dword start_pointer, i_fill_color)
{
dword i;
dword max_i = bufw * bufh * 4 + buf_data + 8;
EDI = fill_color = i_fill_color;
for (ESI=buf_data+start_pointer+8; ESI<max_i; ESI+=4) ESDWORD[ESI] = EDI;
//for (i=buf_data+start_pointer+8; i<max_i; i+=4) ESDWORD[i] = fill_color;
}
void DrawBufer::DrawBar(dword x, y, w, h, color)
{
dword i, j;
if (y + h >= bufh) IncreaseBufSize();
for (j=0; j<h; j++) {
for (i = y+j*bufw+x<<2+8+buf_data; i<y+j*bufw+x+w<<2+8+buf_data; i+=4) {
ESDWORD[i] = color;
}
}
}
void DrawBufer::WriteText(dword x, y, byte fontType, dword color, str_offset)
{
#define BUGFIX_32000 32000
int ydiv=0;
dword reserve_data_1, reserve_data_2;
dword new_buf_offset;
if (y + 30 >= bufh) IncreaseBufSize();
if (y < BUGFIX_32000) {
WriteBufText(x, y, fontType, color, str_offset, buf_data);
}
else {
ydiv = y / BUGFIX_32000 * BUGFIX_32000;
y -= ydiv;
new_buf_offset = ydiv * bufw * 4 + buf_data;
reserve_data_1 = ESDWORD[new_buf_offset];
reserve_data_2 = ESDWORD[new_buf_offset+4];
ESDWORD[new_buf_offset] = bufw;
ESDWORD[new_buf_offset+4] = bufh - y;
WriteBufText(x, y, fontType, color, str_offset, new_buf_offset);
ESDWORD[new_buf_offset] = reserve_data_1;
ESDWORD[new_buf_offset+4] = reserve_data_2;
}
}
void DrawBufer::PutPixel(dword x, y, color)
{
dword pos = y*bufw+x*4+8+buf_data;
ESDWORD[pos] = color;
}
void DrawBufer::AlignRight(dword x,y,w,h, content_width)
{
dword i, j, l;
dword content_left = w - content_width / 2;
for (j=0; j<h; j++)
{
for (i=j*w+w-x*4, l=j*w+content_width+x*4; (i>=j*w+content_left*4) && (l>=j*w*4); i-=4, l-=4)
{
ESDWORD[buf_data+8+i] >< ESDWORD[buf_data+8+l];
}
}
}
void DrawBufer::AlignCenter(dword x,y,w,h, content_width)
{
dword i, j, l;
dword content_left = w - content_width / 2;
for (j=0; j<h; j++)
{
for (i=j*w+content_width+content_left*4, l=j*w+content_width+x*4; (i>=j*w+content_left*4) && (l>=j*w*4); i-=4, l-=4)
{
ESDWORD[buf_data+8+i] >< ESDWORD[buf_data+8+l];
}
}
}
/*
void DrawBufer::Zoom2x(int zoom)
{
int i, s;
dword point_x, max_i, zline_w, s_inc;
point_x = 0;
max_i = bufw * bufh * 4 + buf_data+8;
s_inc = zoom * 4;
zline_w = zbufw * 4;
for (i=buf_data+8, s=zbuf_data+8; i<max_i; i+=4, s+= s_inc) {
ESDWORD[s] = ESDWORD[i];
ESDWORD[s+4] = ESDWORD[i];
ESDWORD[s+zline_w] = ESDWORD[i];
ESDWORD[s+zline_w+4] = ESDWORD[i];
if (zoom==3)
{
ESDWORD[s+8] = ESDWORD[i];
ESDWORD[zline_w+s+8] = ESDWORD[i];
ESDWORD[zline_w*2+s] = ESDWORD[i];
ESDWORD[zline_w*2+s+4] = ESDWORD[i];
ESDWORD[zline_w*2+s+8] = ESDWORD[i];
}
point_x++;
if (point_x >= bufw)
{
s += zoom - 1 * zline_w;
point_x = 0;
}
}
}
*/
void DrawBufer::Show()
{
PutPaletteImage(buf_data+8, bufw, bufh, bufx, bufy, 32, 0);
}
void DrawBufer::IncreaseBufSize()
{
static dword alloc_counter;
static dword bufh_initial;
dword alloc_size;
dword free_ram_size;
char error_str[256];
if (!buf_data) {
alloc_counter = 1;
bufh_initial = bufh;
alloc_size = bufw * bufh * 4 + 8;
buf_data = malloc(alloc_size);
}
else {
alloc_counter++;
bufh = bufh_initial * alloc_counter;
alloc_size = bufw * bufh * 4 + 8;
buf_data = realloc(buf_data, alloc_size);
Fill(alloc_counter - 1 * bufw * bufh_initial * 4 + 8, fill_color);
}
free_ram_size = GetFreeRAM() * 1024;
if (alloc_size >= free_ram_size) {
sprintf(#error_str, #draw_buf_not_enaught_ram, alloc_size/1048576, free_ram_size/1048576);
notify(#error_str);
}
}
#endif