kolibrios/programs/cmm/lib/draw_buf.h
Kirill Lipatov (Leency) e4b55f0dfb WebView and draw_buf.h: show error notification if requested memory size is more than free RAM size
git-svn-id: svn://kolibrios.org@6724 a494cfbc-eb01-0410-851d-a64ba20cac60
2016-11-17 21:23:36 +00:00

158 lines
3.3 KiB
C

#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
unsigned buf_data;
struct DrawBufer {
unsigned bufx, bufy, bufw, bufh;
byte zoom;
bool Init();
void Show();
void Fill();
void Skew();
void DrawBar();
void PutPixel();
void AlignCenter();
void AlignRight();
};
bool DrawBufer::Init(int i_bufx, i_bufy, i_bufw, i_bufh)
{
dword alloc_size, free_ram_size;
char error_str[256];
if (!zoom) zoom = 1;
bufx = i_bufx;
bufy = i_bufy;
bufw = i_bufw * zoom;
bufh = i_bufh * zoom;
free(buf_data);
$mov eax, 18
$mov ebx, 16
$int 0x40
free_ram_size = EAX * 1024;
alloc_size = bufw * bufh * 4 + 8;
if (alloc_size >= free_ram_size) {
sprintf(#error_str,
"'DrawBufer needs more memory than currenly available.
Application could be unstable.
Requested size: %i Kb.
Free RAM: %i Kb' -E", alloc_size/1024, free_ram_size/1024);
notify(#error_str);
}
buf_data = malloc(alloc_size);
//debugval("buf_data",buf_data);
if (!buf_data) return false;
ESDWORD[buf_data] = bufw;
ESDWORD[buf_data+4] = bufh;
return true;
}
void DrawBufer::Fill(unsigned fill_color)
{
unsigned i;
unsigned max_i = bufw * bufh * 4 + buf_data + 8;
for (i=buf_data+8; i<max_i; i+=4) ESDWORD[i] = fill_color;
}
void DrawBufer::DrawBar(unsigned x, y, w, h, color)
{
int i, j;
for (j=0; j<h; j++)
{
for (i = y+j*bufw+x*4+8+buf_data; i<y+j*bufw+x+w*4+8+buf_data; i+=4) ESDWORD[i] = color;
}
}
void DrawBufer::PutPixel(unsigned x, y, color)
{
int pos = y*bufw+x*4+8+buf_data;
ESDWORD[pos] = color;
}
char shift[]={8,8,4,4};
void DrawBufer::Skew(unsigned x, y, w, h)
{
int i, j;
for (j=0; j<=3; j++)
{
for (i = y+j*bufw+x+w+h*4; i>y+j*bufw+x+h-12*4 ; i-=4)
ESDWORD[buf_data+i+8] = ESDWORD[-shift[j]+buf_data+i+8];
}
}
void DrawBufer::AlignRight(unsigned x,y,w,h, content_width)
{
int i, j, l;
int 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(unsigned x,y,w,h, content_width)
{
int i, j, l;
int 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 i, s;
unsigned 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);
}
#endif