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#include "gfx.h"
#include "memory.h"
struct GfxInfo *gfx_info = (void *) (0x1000-10);
// byteswap
u32 make_color(color col)
{
return ((u32) 0)
| ((u32) col.b << 0)
| ((u32) col.g << 8)
| ((u32) col.r << 16)
| ((u32) col.a << 24);
}
void gfx_set_pixel(u16 x, u16 y, u32 col)
{
*((u32 *) (u64) (gfx_info->framebuffer + y * gfx_info->pitch + x * sizeof col)) = col;
}
void gfx_set_area(u16 x, u16 y, u16 w, u16 h, u32 col)
{
void *cbeg = (void *) (u64) (gfx_info->framebuffer + y * gfx_info->pitch + x * sizeof col);
void *cend = cbeg + h * gfx_info->pitch;
for (; cbeg < cend; cbeg += gfx_info->pitch) {
void *rbeg = cbeg;
void *rend = rbeg + w * sizeof col;
for (; rbeg < rend; rbeg += sizeof col)
*((u32 *) rbeg) = col;
}
}
void gfx_draw_img(u16 x, u16 y, u16 w, u16 h, u32 *img)
{
void *cbeg = (void *) (u64) (gfx_info->framebuffer + y * gfx_info->pitch + x * sizeof(color));
for (u16 yi = 0; yi < h; cbeg += gfx_info->pitch, yi++)
memcpy(cbeg, img + yi * w, w * sizeof(color));
}
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