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The vblank callback now reports the vblank type

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This commit is contained in:
Lior Halphon 2022-06-25 01:59:51 +03:00
parent 58df8144ec
commit aaf9a76b67
9 changed files with 28 additions and 30 deletions
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2
Cocoa/Document.m
View File

@ -131,7 +131,7 @@ static void boot_rom_load(GB_gameboy_t *gb, GB_boot_rom_t type)
[self loadBootROM: type];
}
static void vblank(GB_gameboy_t *gb)
static void vblank(GB_gameboy_t *gb, GB_vblank_type_t type)
{
Document *self = (__bridge Document *)GB_get_user_data(gb);
[self vblank];

16
Core/display.c
View File

@ -106,7 +106,7 @@ typedef struct __attribute__((packed)) {
uint8_t flags;
} object_t;
void GB_display_vblank(GB_gameboy_t *gb)
void GB_display_vblank(GB_gameboy_t *gb, GB_vblank_type_t type)
{
gb->vblank_just_occured = true;
gb->cycles_since_vblank_callback = 0;
@ -211,7 +211,7 @@ void GB_display_vblank(GB_gameboy_t *gb)
GB_handle_rumble(gb);
if (gb->vblank_callback) {
gb->vblank_callback(gb);
gb->vblank_callback(gb, type);
}
GB_timing_sync(gb);
}
@ -1348,7 +1348,7 @@ void GB_display_run(GB_gameboy_t *gb, unsigned cycles, bool force)
/* The PPU does not advance while in STOP mode on the DMG */
if (gb->stopped && !GB_is_cgb(gb)) {
if (gb->cycles_since_vblank_callback >= LCDC_PERIOD) {
GB_display_vblank(gb);
GB_display_vblank(gb, GB_VBLANK_TYPE_ARTIFICIAL);
}
return;
}
@ -1402,7 +1402,7 @@ void GB_display_run(GB_gameboy_t *gb, unsigned cycles, bool force)
if (gb->cycles_since_vblank_callback < LCDC_PERIOD) {
GB_SLEEP(gb, display, 1, LCDC_PERIOD - gb->cycles_since_vblank_callback);
}
GB_display_vblank(gb);
GB_display_vblank(gb, GB_VBLANK_TYPE_LCD_OFF);
gb->cgb_repeated_a_frame = true;
}
return;
@ -1889,7 +1889,7 @@ skip_slow_mode_3:
// Todo: unverified timing
gb->current_lcd_line++;
if (gb->current_lcd_line == LINES && GB_is_sgb(gb)) {
GB_display_vblank(gb);
GB_display_vblank(gb, GB_VBLANK_TYPE_NORMAL_FRAME);
}
if (gb->icd_hreset_callback) {
@ -1931,13 +1931,13 @@ skip_slow_mode_3:
if (gb->frame_skip_state == GB_FRAMESKIP_LCD_TURNED_ON) {
if (GB_is_cgb(gb)) {
GB_display_vblank(gb);
GB_display_vblank(gb, GB_VBLANK_TYPE_NORMAL_FRAME);
gb->frame_skip_state = GB_FRAMESKIP_FIRST_FRAME_SKIPPED;
}
else {
if (!GB_is_sgb(gb) || gb->current_lcd_line < LINES) {
gb->is_odd_frame ^= true;
GB_display_vblank(gb);
GB_display_vblank(gb, GB_VBLANK_TYPE_NORMAL_FRAME);
}
gb->frame_skip_state = GB_FRAMESKIP_SECOND_FRAME_RENDERED;
}
@ -1945,7 +1945,7 @@ skip_slow_mode_3:
else {
if (!GB_is_sgb(gb) || gb->current_lcd_line < LINES) {
gb->is_odd_frame ^= true;
GB_display_vblank(gb);
GB_display_vblank(gb, GB_VBLANK_TYPE_NORMAL_FRAME);
}
if (gb->frame_skip_state == GB_FRAMESKIP_FIRST_FRAME_SKIPPED) {
gb->cgb_repeated_a_frame = true;

8
Core/display.h
View File

@ -5,12 +5,18 @@
#include <stdbool.h>
#include <stdint.h>
typedef enum {
GB_VBLANK_TYPE_NORMAL_FRAME, // An actual Vblank-triggered frame
GB_VBLANK_TYPE_LCD_OFF, // An artificial frame pushed while the LCD was off
GB_VBLANK_TYPE_ARTIFICIAL, // An artificial frame pushed for some other reason
} GB_vblank_type_t;
#ifdef GB_INTERNAL
internal void GB_display_run(GB_gameboy_t *gb, unsigned cycles, bool force);
internal void GB_palette_changed(GB_gameboy_t *gb, bool background_palette, uint8_t index);
internal void GB_STAT_update(GB_gameboy_t *gb);
internal void GB_lcd_off(GB_gameboy_t *gb);
internal void GB_display_vblank(GB_gameboy_t *gb);
internal void GB_display_vblank(GB_gameboy_t *gb, GB_vblank_type_t type);
#define GB_display_sync(gb) GB_display_run(gb, 0, true)
enum {

2
Core/gb.h
View File

@ -283,7 +283,7 @@ typedef enum {
#endif
#endif
typedef void (*GB_vblank_callback_t)(GB_gameboy_t *gb);
typedef void (*GB_vblank_callback_t)(GB_gameboy_t *gb, GB_vblank_type_t type);
typedef void (*GB_log_callback_t)(GB_gameboy_t *gb, const char *string, GB_log_attributes attributes);
typedef char *(*GB_input_callback_t)(GB_gameboy_t *gb);
typedef uint32_t (*GB_rgb_encode_callback_t)(GB_gameboy_t *gb, uint8_t r, uint8_t g, uint8_t b);

20
Core/memory.c
View File

@ -1422,21 +1422,13 @@ static void write_high_memory(GB_gameboy_t *gb, uint16_t addr, uint8_t value)
case GB_IO_LCDC:
if ((value & 0x80) && !(gb->io_registers[GB_IO_LCDC] & 0x80)) {
if (value & 0x80) {
// LCD turned on
if (!gb->lcd_disabled_outside_of_vblank &&
(gb->cycles_since_vblank_callback > 10 * 456 || GB_is_sgb(gb))) {
// Trigger a vblank here so we don't exceed LCDC_PERIOD
GB_display_vblank(gb);
}
}
else {
// LCD turned off
if (gb->current_line < 144) {
// ROM might be repeatedly disabling LCDC outside of vblank, avoid callback spam
gb->lcd_disabled_outside_of_vblank = true;
}
// LCD turned on
if (!gb->lcd_disabled_outside_of_vblank &&
(gb->cycles_since_vblank_callback > 10 * 456 || GB_is_sgb(gb))) {
// Trigger a vblank here so we don't exceed LCDC_PERIOD
GB_display_vblank(gb, GB_VBLANK_TYPE_ARTIFICIAL);
}
gb->display_cycles = 0;
gb->display_state = 0;
gb->double_speed_alignment = 0;

2
QuickLook/get_image_for_rom.c
View File

@ -25,7 +25,7 @@ static void log_callback(GB_gameboy_t *gb, const char *string, GB_log_attributes
}
static void vblank(GB_gameboy_t *gb)
static void vblank(GB_gameboy_t *gb, GB_vblank_type_t type)
{
struct local_data *local_data = (struct local_data *)GB_get_user_data(gb);

2
SDL/main.c
View File

@ -462,7 +462,7 @@ static uint32_t rgb_encode(GB_gameboy_t *gb, uint8_t r, uint8_t g, uint8_t b)
return SDL_MapRGB(pixel_format, r, g, b);
}
static void vblank(GB_gameboy_t *gb)
static void vblank(GB_gameboy_t *gb, GB_vblank_type_t type)
{
if (underclock_down && clock_mutliplier > 0.5) {
clock_mutliplier -= 1.0/16;

2
Tester/main.c
View File

@ -123,7 +123,7 @@ static void handle_buttons(GB_gameboy_t *gb)
}
static void vblank(GB_gameboy_t *gb)
static void vblank(GB_gameboy_t *gb, GB_vblank_type_t type)
{
/* Detect common crashes and stop the test early */
if (frames < test_length - 1) {

4
libretro/libretro.c
View File

@ -248,12 +248,12 @@ static void audio_callback(GB_gameboy_t *gb, GB_sample_t *sample)
output_audio_buffer.data[output_audio_buffer.size++] = sample->right;
}
static void vblank1(GB_gameboy_t *gb)
static void vblank1(GB_gameboy_t *gb, GB_vblank_type_t type)
{
vblank1_occurred = true;
}
static void vblank2(GB_gameboy_t *gb)
static void vblank2(GB_gameboy_t *gb, GB_vblank_type_t type)
{
vblank2_occurred = true;
}