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#include "arch/x86_64/hal/obj.h"
#include "jove.h"
#include "lib/printf.h"
#include "limine.h"
#include "proc/init.h"
#include "hal/framebuffer.h"
extern struct limine_framebuffer_response *_limine_framebuffers;
#define CHECK_IF_FB(obj) \
if(obj_gettype(obj) != JOVE_OBJ_FRAMEBUFFER) { \
reterr(EBADOBJ); \
}
size_t
fb_width(jove_owned_obj_t *obj)
{
CHECK_IF_FB(obj);
struct limine_framebuffer *fb = obj_deref(obj);
return fb->width;
}
size_t
fb_height(jove_owned_obj_t *obj)
{
CHECK_IF_FB(obj);
struct limine_framebuffer *fb = obj_deref(obj);
return fb->height;
}
int
fb_blit(jove_owned_obj_t *obj,
uint32_t *data,
size_t x, size_t y,
size_t width, size_t height)
{
CHECK_IF_FB(obj);
struct limine_framebuffer *fb = obj_deref(obj);
uint32_t *fb_address = fb->address;
for(size_t oline = 0; oline < height; oline++) {
size_t line = oline + y;
uint32_t *line_data = &data[oline * width];
for(size_t ocol = 0; ocol < width; ocol++) {
size_t col = ocol + x;
fb_address[line * (fb->pitch >> 2) + col] = line_data[ocol];
}
}
return 0;
}
void
fb_init()
{
if(_limine_framebuffers->framebuffer_count == 0) {
return;
}
struct limine_framebuffer *fb = _limine_framebuffers->framebuffers[0];
size_t fb_bytes = fb->width * fb->height * (fb->bpp / 8);
void *fb_virt = fb_remap((uintptr_t)fb->address, fb_bytes);
//void *fb_virt = fb->address;
if(fb_virt == NULL) {
kprintf("Unable to remap framebuffer.\n");
return;
}
kprintf("framebuffer: phys address %p\n", (uintptr_t)fb->address);
kprintf("framebuffer: virt address %p\n", fb_virt);
kprintf("framebuffer: width %ipx\n", fb->width);
kprintf("framebuffer: height %ipx\n", fb->height);
kprintf("framebuffer: %i bpp\n", fb->bpp);
fb->address = fb_virt;
{
jove_owned_obj_t *fb_obj = objdir_getlocal(_rootdir_obj, ROOTDIR_FRAMEBUFFER_I);
obj_settype(fb_obj, JOVE_OBJ_FRAMEBUFFER);
obj_setvalue(fb_obj, (uintptr_t)fb);
obj_release(fb_obj);
}
}
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