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Support Overlays #2

Merged
jaby merged 48 commits from Overlay-The-Beginning_CDDrive into main 2023-04-22 09:38:32 +00:00
Conversation 0 Commits 48 Files Changed 64 +34 -47
4 changed files with 34 additions and 47 deletions
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Showing only changes of commit 6e99221ab6 - Show all commits

2
src/Library/internal-include/CD/cd_internal.hpp
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@ -47,7 +47,7 @@ namespace JabyEngine {
};
void read_file(FileInfo file_info, const SectorBufferAllocator& buffer_allocator);
bool continue_reading();
void continue_reading();
}
}
}

2
src/Library/src/BootLoader/gpu_boot.cpp
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@ -43,7 +43,7 @@ namespace JabyEngine {
// Upload SplashScreen picture
auto state = FileProcessor::create(&__boot_loader_end, SimpleTIM(32, 0, 0, 0));
while(state.process(bytes_ready) == Progress::InProgress);
state.process(bytes_ready);
Display::enable();
}

72
src/Library/src/CD/cd.cpp
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@ -23,7 +23,8 @@ namespace JabyEngine {
static constexpr auto DataSectorMode = Mode_t::from(Mode_t::DoubleSpeed, Mode_t::DataSector);
static SectorBufferAllocator sector_allocator;
static uint16_t sectors_left;
static uint16_t cur_lba;
static uint16_t dst_lba;
static void pause_cd() {
CD_IO::PortIndex0::change_to();
@ -31,9 +32,14 @@ namespace JabyEngine {
}
// Requires Index0
static void start_reading_cd() {
static void read_cd(uint16_t lba) {
const auto loc = CDTimeStamp::from(lba);
Command::send_wait<CD_IO::PortIndex0>(CD_IO::Command::SetLoc, loc.get_min_cd(), loc.get_sec_cd(), loc.get_sector_cd());
Command::send<CD_IO::PortIndex0>(CD_IO::Command::ReadN);
current_state = State::Reading;
printf("Now reading: %i(%i:%i:%i)\n", lba, loc.get_min_cd(), loc.get_sec_cd(), loc.get_sector_cd());
}
static void read_sector_dma(CD_IO::DataSector& sector) {
@ -66,23 +72,6 @@ namespace JabyEngine {
// Doesn't seem to important when we can use DMA
}
static bool try_read_sector() {
// Obtain sector content here
auto* sector = sector_allocator.allocate_sector();
if(sector) {
//Now obtain sector
read_sector_to(*sector);
sectors_left--;
if(sectors_left == 0) {
current_state = State::Done;
pause_cd();
}
return true;
}
return false;
}
static InterruptVerifierResult interrupt_verifier() {
if(Interrupt::is_irq(Interrupt::CDROM)) {
const uint8_t old_status = CD_IO::IndexStatus;
@ -93,8 +82,20 @@ namespace JabyEngine {
CD_IO::Interrupt::ack(CD_IO::PortIndex1::InterruptFlag);
if(cur_irq == CD_IO::Interrupt::DataReady) {
//Obtain sector content here
if(!try_read_sector()) {
// Obtain sector content here
auto* sector = sector_allocator.allocate_sector();
if(sector) {
//Now obtain sector
read_sector_to(*sector);
cur_lba++;
if(cur_lba == dst_lba) {
current_state = State::Done;
pause_cd();
}
}
else {
current_state = State::BufferFull;
pause_cd();
}
@ -128,35 +129,20 @@ namespace JabyEngine {
};
void read_file(FileInfo file_info, const SectorBufferAllocator& buffer_allocator) {
cur_lba = file_info.lba;
dst_lba = file_info.lba + file_info.sectors;
sector_allocator = buffer_allocator;
sectors_left = file_info.sectors;
CD_IO::PortIndex0::change_to();
Command::send_wait<CD_IO::PortIndex0>(CD_IO::Command::SetMode, DataSectorMode);
const auto loc = CDTimeStamp::from(file_info);
Command::send_wait<CD_IO::PortIndex0>(CD_IO::Command::SetLoc, loc.get_min_cd(), loc.get_sec_cd(), loc.get_sector_cd());
start_reading_cd();
printf("Now reading: %i(%i:%i:%i)\n", file_info.lba, loc.get_min_cd(), loc.get_sec_cd(), loc.get_sector_cd());
read_cd(file_info.lba);
}
bool continue_reading() {
if(current_state != State::BufferFull) {
return true;
}
printf(">>> Trying to read buffer from continue_reading\n");
CD_IO::PortIndex1::change_to();
if(!try_read_sector()) {
return false;
}
if(current_state != State::Done) {
CD_IO::PortIndex0::change_to();
start_reading_cd();
}
return true;
void continue_reading() {
if(current_state == State::BufferFull) {
read_cd(cur_lba);
}
}
}
}

5
src/Library/src/File/Processor/cd_file_processor.cpp
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@ -3,7 +3,7 @@
#include <stdio.h>
namespace JabyEngine {
static constexpr auto NormalCircularBufferSize = 64;
static constexpr auto NormalCircularBufferSize = 5;
void CDFileProcessor :: start_cur_job() {
using CD::internal::FileInfo;
@ -89,7 +89,8 @@ namespace JabyEngine {
case CD::internal::State::BufferFull:
/* We processd data and unpause the CD drive */
return CD::internal::continue_reading() ? Progress::InProgress : Progress::Error;
CD::internal::continue_reading();
return Progress::InProgress;
case CD::internal::State::Reading:
return Progress::InProgress;