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RDP sync updates (#201)

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* RDP sync updates

* rename

* rename
This commit is contained in:
Logan McNaughton 2025-01-29 20:21:49 +01:00 committed by GitHub
parent 1b1313003c
commit cb9309d7e4
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GPG Key ID: B5690EEEBB952194
5 changed files with 18 additions and 6 deletions
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1
build.rs
View File

@ -98,6 +98,7 @@ fn main() {
.allowlist_function("rdp_close")
.allowlist_function("rdp_set_vi_register")
.allowlist_function("rdp_update_screen")
.allowlist_function("rdp_full_sync")
.allowlist_function("rdp_process_commands")
.parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))
.generate()

13
parallel-rdp/interface.cpp
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@ -62,6 +62,7 @@ static int cmd_cur;
static int cmd_ptr;
static bool emu_running;
static GFX_INFO gfx_info;
static uint64_t sync_signal;
static const unsigned cmd_len_lut[64] = {
1,
@ -383,8 +384,6 @@ uint64_t rdp_process_commands()
if ((cmd_ptr + length) & ~(0x0003FFFF >> 3))
return interrupt_timer;
*gfx_info.DPC_STATUS_REG |= DP_STATUS_PIPE_BUSY | DP_STATUS_START_GCLK;
uint32_t offset = DP_CURRENT;
if (*gfx_info.DPC_STATUS_REG & DP_STATUS_XBUS_DMA)
{
@ -433,7 +432,7 @@ uint64_t rdp_process_commands()
if (RDP::Op(command) == RDP::Op::SyncFull)
{
processor->wait_for_timeline(processor->signal_timeline());
sync_signal = processor->signal_timeline();
uint32_t width = viCalculateHorizonalWidth(*gfx_info.VI_H_START_REG, *gfx_info.VI_X_SCALE_REG, *gfx_info.VI_WIDTH_REG);
if (width == 0)
@ -446,8 +445,6 @@ uint64_t rdp_process_commands()
height = 240;
}
interrupt_timer = width * height * 4;
*gfx_info.DPC_STATUS_REG &= ~(DP_STATUS_PIPE_BUSY | DP_STATUS_START_GCLK);
}
cmd_cur += cmd_length;
@ -456,7 +453,11 @@ uint64_t rdp_process_commands()
cmd_ptr = 0;
cmd_cur = 0;
*gfx_info.DPC_CURRENT_REG = *gfx_info.DPC_END_REG;
*gfx_info.DPC_STATUS_REG |= DP_STATUS_CBUF_READY;
return interrupt_timer;
}
void rdp_full_sync()
{
processor->wait_for_timeline(sync_signal);
}

1
parallel-rdp/interface.hpp
View File

@ -28,6 +28,7 @@ extern "C"
void rdp_set_vi_register(uint32_t reg, uint32_t value);
bool rdp_update_screen();
uint64_t rdp_process_commands();
void rdp_full_sync();
#ifdef __cplusplus
}

5
src/device/rdp.rs
View File

@ -102,6 +102,7 @@ pub fn write_regs_dpc(device: &mut device::Device, address: u64, value: u32, mas
fn run_rdp(device: &mut device::Device) {
let timer = ui::video::process_rdp_list();
device.rdp.regs_dpc[DPC_STATUS_REG as usize] |= DPC_STATUS_START_GCLK | DPC_STATUS_PIPE_BUSY;
if timer != 0 {
device::events::create_event(
@ -183,5 +184,9 @@ pub fn init(device: &mut device::Device) {
}
fn rdp_interrupt_event(device: &mut device::Device) {
device.rdp.regs_dpc[DPC_STATUS_REG as usize] &= !(DPC_STATUS_START_GCLK | DPC_STATUS_PIPE_BUSY);
ui::video::full_sync();
device::mi::set_rcp_interrupt(device, device::mi::MI_INTR_DP)
}

4
src/ui/video.rs
View File

@ -73,6 +73,10 @@ pub fn process_rdp_list() -> u64 {
unsafe { rdp_process_commands() }
}
pub fn full_sync() {
unsafe { rdp_full_sync() }
}
pub fn draw_text(text: &str, renderer: *mut sdl3_sys::render::SDL_Renderer, font: &rusttype::Font) {
let text_size = 32;
let scale = rusttype::Scale::uniform(text_size as f32);