125 lines
2.1 KiB
C
125 lines
2.1 KiB
C
#include <gint/defs/util.h>
|
|
#include <gint/gray.h>
|
|
#include <display/fx.h>
|
|
|
|
/* grect(): Fill a rectangle on the screen */
|
|
void grect(int x1, int y1, int x2, int y2, color_t color)
|
|
{
|
|
if(x1 > x2) swap(x1, x2);
|
|
if(y1 > y2) swap(y1, y2);
|
|
|
|
/* Argument checking */
|
|
if(x1 >= 128 || x2 < 0 || y1 >= 64 || y2 < 0) return;
|
|
if(x1 < 0) x1 = 0;
|
|
if(x2 >= 128) x2 = 127;
|
|
if(y1 < 0) y1 = 0;
|
|
if(y2 >= 64) y2 = 63;
|
|
|
|
/* Use masks to get the work done fast! */
|
|
uint32_t m[4];
|
|
masks(x1, x2, m);
|
|
|
|
uint32_t *light, *dark;
|
|
gvram(&light, &dark);
|
|
|
|
light += (y1 << 2);
|
|
dark += (y1 << 2);
|
|
int h = y2 - y1 + 1;
|
|
|
|
if(color == C_WHITE) while(h--)
|
|
{
|
|
light[0] &= ~m[0];
|
|
light[1] &= ~m[1];
|
|
light[2] &= ~m[2];
|
|
light[3] &= ~m[3];
|
|
|
|
dark[0] &= ~m[0];
|
|
dark[1] &= ~m[1];
|
|
dark[2] &= ~m[2];
|
|
dark[3] &= ~m[3];
|
|
|
|
light += 4;
|
|
dark += 4;
|
|
}
|
|
else if(color == C_LIGHT) while(h--)
|
|
{
|
|
light[0] |= m[0];
|
|
light[1] |= m[1];
|
|
light[2] |= m[2];
|
|
light[3] |= m[3];
|
|
|
|
dark[0] &= ~m[0];
|
|
dark[1] &= ~m[1];
|
|
dark[2] &= ~m[2];
|
|
dark[3] &= ~m[3];
|
|
|
|
light += 4;
|
|
dark += 4;
|
|
}
|
|
else if(color == C_DARK) while(h--)
|
|
{
|
|
light[0] &= ~m[0];
|
|
light[1] &= ~m[1];
|
|
light[2] &= ~m[2];
|
|
light[3] &= ~m[3];
|
|
|
|
dark[0] |= m[0];
|
|
dark[1] |= m[1];
|
|
dark[2] |= m[2];
|
|
dark[3] |= m[3];
|
|
|
|
light += 4;
|
|
dark += 4;
|
|
}
|
|
else if(color == C_BLACK) while(h--)
|
|
{
|
|
light[0] |= m[0];
|
|
light[1] |= m[1];
|
|
light[2] |= m[2];
|
|
light[3] |= m[3];
|
|
|
|
dark[0] |= m[0];
|
|
dark[1] |= m[1];
|
|
dark[2] |= m[2];
|
|
dark[3] |= m[3];
|
|
|
|
light += 4;
|
|
dark += 4;
|
|
}
|
|
else if(color == C_INVERT) while(h--)
|
|
{
|
|
light[0] ^= m[0];
|
|
light[1] ^= m[1];
|
|
light[2] ^= m[2];
|
|
light[3] ^= m[3];
|
|
|
|
dark[0] ^= m[0];
|
|
dark[1] ^= m[1];
|
|
dark[2] ^= m[2];
|
|
dark[3] ^= m[3];
|
|
|
|
light += 4;
|
|
dark += 4;
|
|
}
|
|
else if(color == C_LIGHTEN) for(int i = 0; i < (h << 2); i++)
|
|
{
|
|
int j = i & 3;
|
|
uint32_t tmp = *dark, x = m[j];
|
|
|
|
*dark &= *light | ~x;
|
|
*light = (*light ^ x) & (tmp | ~x);
|
|
|
|
light++, dark++;
|
|
}
|
|
else if(color == C_DARKEN) for(int i = 0; i < (h << 2); i++)
|
|
{
|
|
int j = i & 3;
|
|
uint32_t tmp = *dark, x = m[j];
|
|
|
|
*dark |= *light & x;
|
|
*light = (*light ^ x) | (tmp & x);
|
|
|
|
light++, dark++;
|
|
}
|
|
}
|