diff options
Diffstat (limited to 'src/ppu/ppu.c')
| -rw-r--r-- | src/ppu/ppu.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/src/ppu/ppu.c b/src/ppu/ppu.c index df14b9f..e32c188 100644 --- a/src/ppu/ppu.c +++ b/src/ppu/ppu.c @@ -4,6 +4,8 @@ #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; @@ -19,17 +21,16 @@ void hh_ppu_update_background(unsigned index, hh_s_ppu_loc_bam_entry e) { } 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_aux(hh_s_ppu_loc_aux aux) { - hh_s_ppu_vram_data a = hh_ppu_2nat_aux(aux); - a.offset = HH_PPU_VRAM_AUX_OFFSET; - hh_ppu_vram_write(a); - free(a.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) { @@ -46,3 +47,13 @@ void hh_ppu_update_color(unsigned palette_index, unsigned color_index, hh_ppu_rg 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(); +} + |