PIXADDR
#define PIXSTEP(sx, sy, dx, dy) (PIXADDR(dx, dy) - PIXADDR(sx, sy) - es + 1)
top = PIXADDR(0, 0);
bottom = PIXADDR(lcd_dma.xres - 1, lcd_dma.yres - 1);
top = PIXADDR(lcd_dma.xres - 1, 0);
bottom = PIXADDR(0, lcd_dma.yres - 1);
top = PIXADDR(0, lcd_dma.yres - 1);
bottom = PIXADDR(lcd_dma.xres - 1, 0);
top = PIXADDR(lcd_dma.xres - 1, lcd_dma.yres - 1);
bottom = PIXADDR(0, 0);
top = PIXADDR(lcd_dma.xres - 1, lcd_dma.yres - 1);
bottom = PIXADDR(0, 0);
top = PIXADDR(0, lcd_dma.yres - 1);
bottom = PIXADDR(lcd_dma.xres - 1, 0);
top = PIXADDR(lcd_dma.xres - 1, 0);
bottom = PIXADDR(0, lcd_dma.yres - 1);
top = PIXADDR(0, 0);
bottom = PIXADDR(lcd_dma.xres - 1, lcd_dma.yres - 1);