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#include <stdlib.h>
#include "ppu/consts.h"
#include "ppu/internals.h"
#include "ppu/ppu.h"
hh_s_ppu_loc_aux g_hh_aux = { 0 };
void hh_ppu_update_foreground(unsigned index, hh_s_ppu_loc_fam_entry e) {
hh_s_ppu_vram_data s = hh_ppu_2nat_fam(e);
s.offset = HH_PPU_VRAM_FAM_OFFSET + HH_PPU_VRAM_FAM_ENTRY_SIZE * index;
hh_ppu_vram_write(s);
free(s.data);
}
void hh_ppu_update_background(unsigned index, hh_s_ppu_loc_bam_entry e) {
hh_s_ppu_vram_data s = hh_ppu_2nat_bam(e);
s.offset = HH_PPU_VRAM_BAM_OFFSET + HH_PPU_VRAM_BAM_ENTRY_SIZE * index;
hh_ppu_vram_write(s);
free(s.data);
}
void hh_ppu_update_sprite(unsigned tilemap_index, const hh_s_ppu_loc_sprite sprite) {
if (tilemap_index < 16) g_hh_aux.fg_fetch = true;
hh_s_ppu_vram_data s = hh_ppu_2nat_sprite(sprite);
s.offset = HH_PPU_VRAM_TMM_OFFSET + HH_PPU_VRAM_TMM_SPRITE_SIZE * tilemap_index;
hh_ppu_vram_write(s);
free(s.data);
}
void hh_ppu_update_background_pos(uint16_t shift_x, uint16_t shift_y) {
g_hh_aux.bg_shift_x = shift_x;
g_hh_aux.bg_shift_y = shift_y;
}
void hh_ppu_update_palette_table(hh_ppu_loc_palette_table_t table) {
for (unsigned i = 0; i < HH_PPU_PALETTE_COUNT; i++) hh_ppu_update_palette(i, table[i]);
}
void hh_ppu_update_palette(unsigned palette_index, hh_ppu_loc_palette_data_t palette) {
for (unsigned i = 0; i < HH_PPU_PALETTE_COLOR_COUNT; i++) hh_ppu_update_color(palette_index, i, palette[i]);
}
void hh_ppu_update_color(unsigned palette_index, unsigned color_index, hh_ppu_rgb_color_t color) {
hh_s_ppu_vram_data c = hh_ppu_2nat_color(color);
c.offset = HH_PPU_VRAM_PAL_OFFSET + palette_index * HH_PPU_VRAM_PAL_ENTRY_SIZE * HH_PPU_PALETTE_COLOR_COUNT + color_index * HH_PPU_VRAM_PAL_ENTRY_SIZE;
hh_ppu_vram_write(c);
free(c.data);
}
void hh_ppu_flush() {
hh_ppu_update_aux(g_hh_aux);
if (g_hh_aux.fg_fetch) {
g_hh_aux.fg_fetch = false;
hh_ppu_update_aux(g_hh_aux);
}
hh_ppu_vram_flush();
}
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