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metaforce/Runtime/Graphics/CMoviePlayer.cpp

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#include "Graphics/CMoviePlayer.hpp"
#include "Audio/g721.h"
#include "CDvdRequest.hpp"
#include "Graphics/CGraphics.hpp"
#include "Graphics/CCubeRenderer.hpp"
#include "GameGlobalObjects.hpp"
#include <amuse/DSPCodec.hpp>
#include <turbojpeg.h>
namespace metaforce {
/* used in the original to look up fixed-point dividends on a
* MIDI-style volume scale (0-127) -> (n/0x8000) */
static const std::array<u16, 128> StaticVolumeLookup = {
0x0000, 0x0002, 0x0008, 0x0012, 0x0020, 0x0032, 0x0049, 0x0063, 0x0082, 0x00A4, 0x00CB, 0x00F5, 0x0124,
0x0157, 0x018E, 0x01C9, 0x0208, 0x024B, 0x0292, 0x02DD, 0x032C, 0x037F, 0x03D7, 0x0432, 0x0492, 0x04F5,
0x055D, 0x05C9, 0x0638, 0x06AC, 0x0724, 0x07A0, 0x0820, 0x08A4, 0x092C, 0x09B8, 0x0A48, 0x0ADD, 0x0B75,
0x0C12, 0x0CB2, 0x0D57, 0x0DFF, 0x0EAC, 0x0F5D, 0x1012, 0x10CA, 0x1187, 0x1248, 0x130D, 0x13D7, 0x14A4,
0x1575, 0x164A, 0x1724, 0x1801, 0x18E3, 0x19C8, 0x1AB2, 0x1BA0, 0x1C91, 0x1D87, 0x1E81, 0x1F7F, 0x2081,
0x2187, 0x2291, 0x239F, 0x24B2, 0x25C8, 0x26E2, 0x2801, 0x2923, 0x2A4A, 0x2B75, 0x2CA3, 0x2DD6, 0x2F0D,
0x3048, 0x3187, 0x32CA, 0x3411, 0x355C, 0x36AB, 0x37FF, 0x3956, 0x3AB1, 0x3C11, 0x3D74, 0x3EDC, 0x4048,
0x41B7, 0x432B, 0x44A3, 0x461F, 0x479F, 0x4923, 0x4AAB, 0x4C37, 0x4DC7, 0x4F5C, 0x50F4, 0x5290, 0x5431,
0x55D6, 0x577E, 0x592B, 0x5ADC, 0x5C90, 0x5E49, 0x6006, 0x61C7, 0x638C, 0x6555, 0x6722, 0x68F4, 0x6AC9,
0x6CA2, 0x6E80, 0x7061, 0x7247, 0x7430, 0x761E, 0x7810, 0x7A06, 0x7C00, 0x7DFE, 0x8000};
/* shared resources */
static tjhandle TjHandle = nullptr;
/* RSF audio state */
static const u8* StaticAudio = nullptr;
static u32 StaticAudioSize = 0;
static u32 StaticAudioOffset = 0;
static u16 StaticVolumeAtten = 0x50F4;
static u32 StaticLoopBegin = 0;
static u32 StaticLoopEnd = 0;
static g72x_state StaticStateLeft = {};
static g72x_state StaticStateRight = {};
/* THP SFX audio */
static float SfxVolume = 1.f;
void CMoviePlayer::Initialize() { TjHandle = tjInitDecompress(); }
void CMoviePlayer::Shutdown() {
tjDestroy(TjHandle);
TjHandle = nullptr;
}
void CMoviePlayer::THPHeader::swapBig() {
magic = SBig(magic);
version = SBig(version);
maxBufferSize = SBig(maxBufferSize);
maxAudioSamples = SBig(maxAudioSamples);
fps = SBig(fps);
numFrames = SBig(numFrames);
firstFrameSize = SBig(firstFrameSize);
dataSize = SBig(dataSize);
componentDataOffset = SBig(componentDataOffset);
offsetsDataOffset = SBig(offsetsDataOffset);
firstFrameOffset = SBig(firstFrameOffset);
lastFrameOffset = SBig(lastFrameOffset);
}
void CMoviePlayer::THPComponents::swapBig() { numComponents = SBig(numComponents); }
void CMoviePlayer::THPVideoInfo::swapBig() {
width = SBig(width);
height = SBig(height);
}
void CMoviePlayer::THPAudioInfo::swapBig() {
numChannels = SBig(numChannels);
sampleRate = SBig(sampleRate);
numSamples = SBig(numSamples);
}
void CMoviePlayer::THPFrameHeader::swapBig() {
nextSize = SBig(nextSize);
prevSize = SBig(prevSize);
imageSize = SBig(imageSize);
audioSize = SBig(audioSize);
}
void CMoviePlayer::THPAudioFrameHeader::swapBig() {
channelSize = SBig(channelSize);
numSamples = SBig(numSamples);
for (int i = 0; i < 2; ++i) {
for (int j = 0; j < 8; ++j) {
channelCoefs[i][j][0] = SBig(channelCoefs[i][j][0]);
channelCoefs[i][j][1] = SBig(channelCoefs[i][j][1]);
}
channelPrevs[i][0] = SBig(channelPrevs[i][0]);
channelPrevs[i][1] = SBig(channelPrevs[i][1]);
}
}
/* Slightly modified from THPAudioDecode present in SDK; always interleaves */
u32 CMoviePlayer::THPAudioDecode(s16* buffer, const u8* audioFrame, bool stereo) {
THPAudioFrameHeader header = *((const THPAudioFrameHeader*)audioFrame);
header.swapBig();
audioFrame += sizeof(THPAudioFrameHeader);
if (stereo) {
for (int i = 0; i < 2; ++i) {
unsigned samples = header.numSamples;
s16* bufferCur = buffer + i;
int16_t prev1 = header.channelPrevs[i][0];
int16_t prev2 = header.channelPrevs[i][1];
for (u32 f = 0; f < (header.numSamples + 13) / 14; ++f) {
DSPDecompressFrameStereoStride(bufferCur, audioFrame, header.channelCoefs[i], &prev1, &prev2, samples);
samples -= 14;
bufferCur += 28;
audioFrame += 8;
}
}
} else {
unsigned samples = header.numSamples;
s16* bufferCur = buffer;
int16_t prev1 = header.channelPrevs[0][0];
int16_t prev2 = header.channelPrevs[0][1];
for (u32 f = 0; f < (header.numSamples + 13) / 14; ++f) {
DSPDecompressFrameStereoDupe(bufferCur, audioFrame, header.channelCoefs[0], &prev1, &prev2, samples);
samples -= 14;
bufferCur += 28;
audioFrame += 8;
}
}
return header.numSamples;
}
CMoviePlayer::CMoviePlayer(const char* path, float preLoadSeconds, bool loop, bool deinterlace)
: CDvdFile(path), xec_preLoadSeconds(preLoadSeconds), xf4_24_loop(loop), m_deinterlace(deinterlace) {
/* Read THP header information */
u8 buf[64];
SyncRead(buf, 64);
memmove(&x28_thpHead, buf, 48);
x28_thpHead.swapBig();
u32 cur = x28_thpHead.componentDataOffset;
SyncSeekRead(buf, 32, ESeekOrigin::Begin, cur);
memmove(&x58_thpComponents, buf, 20);
cur += 20;
x58_thpComponents.swapBig();
for (u32 i = 0; i < x58_thpComponents.numComponents; ++i) {
switch (x58_thpComponents.comps[i]) {
case THPComponents::Type::Video:
SyncSeekRead(buf, 32, ESeekOrigin::Begin, cur);
memmove(&x6c_videoInfo, buf, 8);
cur += 8;
x6c_videoInfo.swapBig();
break;
case THPComponents::Type::Audio:
SyncSeekRead(buf, 32, ESeekOrigin::Begin, cur);
memmove(&x74_audioInfo, buf, 12);
cur += 12;
x74_audioInfo.swapBig();
xf4_25_hasAudio = true;
break;
default:
break;
}
}
/* Initial read state */
xb4_nextReadOff = x28_thpHead.firstFrameOffset;
xb0_nextReadSize = x28_thpHead.firstFrameSize;
xb8_readSizeWrapped = x28_thpHead.firstFrameSize;
xbc_readOffWrapped = x28_thpHead.firstFrameOffset;
xe4_totalSeconds = x28_thpHead.numFrames / x28_thpHead.fps;
if (xec_preLoadSeconds < 0.f) {
/* Load whole video */
xec_preLoadSeconds = xe4_totalSeconds;
xf0_preLoadFrames = x28_thpHead.numFrames;
} else if (xec_preLoadSeconds > 0.f) {
/* Pre-load video portion */
u32 frame = xec_preLoadSeconds * x28_thpHead.fps;
xf0_preLoadFrames = std::min(frame, x28_thpHead.numFrames);
xec_preLoadSeconds = std::min(xe4_totalSeconds, xec_preLoadSeconds);
}
if (xf0_preLoadFrames > 0)
xa0_bufferQueue.reserve(xf0_preLoadFrames);
/* Allocate textures here (rather than at decode time) */
x80_textures.reserve(3);
for (int i = 0; i < 3; ++i) {
CTHPTextureSet& set = x80_textures.emplace_back();
if (deinterlace) {
/* metaforce addition: this way interlaced THPs don't look horrible */
set.Y[0] = aurora::gfx::new_dynamic_texture_2d(x6c_videoInfo.width, x6c_videoInfo.height / 2, 1, GX::TF_I8,
fmt::format(FMT_STRING("Movie {} Texture Set {} Y[0]"), path, i));
set.Y[1] = aurora::gfx::new_dynamic_texture_2d(x6c_videoInfo.width, x6c_videoInfo.height / 2, 1, GX::TF_I8,
fmt::format(FMT_STRING("Movie {} Texture Set {} Y[1]"), path, i));
set.U = aurora::gfx::new_dynamic_texture_2d(x6c_videoInfo.width / 2, x6c_videoInfo.height / 2, 1, GX::TF_I8,
fmt::format(FMT_STRING("Movie {} Texture Set {} U"), path, i));
set.V = aurora::gfx::new_dynamic_texture_2d(x6c_videoInfo.width / 2, x6c_videoInfo.height / 2, 1, GX::TF_I8,
fmt::format(FMT_STRING("Movie {} Texture Set {} V"), path, i));
} else {
/* normal progressive presentation */
set.Y[0] = aurora::gfx::new_dynamic_texture_2d(x6c_videoInfo.width, x6c_videoInfo.height, 1, GX::TF_I8,
fmt::format(FMT_STRING("Movie {} Texture Set {} Y"), path, i));
set.U = aurora::gfx::new_dynamic_texture_2d(x6c_videoInfo.width / 2, x6c_videoInfo.height / 2, 1, GX::TF_I8,
fmt::format(FMT_STRING("Movie {} Texture Set {} U"), path, i));
set.V = aurora::gfx::new_dynamic_texture_2d(x6c_videoInfo.width / 2, x6c_videoInfo.height / 2, 1, GX::TF_I8,
fmt::format(FMT_STRING("Movie {} Texture Set {} V"), path, i));
}
if (xf4_25_hasAudio)
set.audioBuf.reset(new s16[x28_thpHead.maxAudioSamples * 2]);
}
/* Temporary planar YUV decode buffer, resulting planes copied to Boo */
m_yuvBuf.reset(new uint8_t[tjBufSizeYUV(x6c_videoInfo.width, x6c_videoInfo.height, TJ_420)]);
/* Schedule initial read */
PostDVDReadRequestIfNeeded();
m_hpad = 0.5f;
m_vpad = 0.5f;
}
void CMoviePlayer::SetStaticAudioVolume(int vol) {
StaticVolumeAtten = StaticVolumeLookup[std::max(0, std::min(127, vol))];
}
void CMoviePlayer::SetStaticAudio(const void* data, u32 size, u32 loopBegin, u32 loopEnd) {
StaticAudio = reinterpret_cast<const u8*>(data);
StaticAudioSize = size;
StaticLoopBegin = loopBegin;
StaticLoopEnd = loopEnd;
StaticAudioOffset = 0;
g72x_init_state(&StaticStateLeft);
g72x_init_state(&StaticStateRight);
}
void CMoviePlayer::SetSfxVolume(u8 volume) { SfxVolume = std::min(volume, u8(127)) / 127.f; }
void CMoviePlayer::MixAudio(s16* out, const s16* in, u32 samples) {
/* No audio frames ready */
if (xd4_audioSlot == UINT32_MAX) {
if (in)
memmove(out, in, samples * 4);
else
memset(out, 0, samples * 4);
return;
}
while (samples) {
CTHPTextureSet* tex = &x80_textures[xd4_audioSlot];
u32 thisSamples = std::min(tex->audioSamples - tex->playedSamples, samples);
if (!thisSamples) {
/* Advance frame */
++xd4_audioSlot;
if (xd4_audioSlot >= x80_textures.size())
xd4_audioSlot = 0;
tex = &x80_textures[xd4_audioSlot];
thisSamples = std::min(tex->audioSamples - tex->playedSamples, samples);
}
if (thisSamples) {
/* mix samples with `in` or no mix */
if (in) {
for (u32 i = 0; i < thisSamples; ++i, out += 2, in += 2) {
out[0] = DSPSampClamp(in[0] + s32(tex->audioBuf[(i + tex->playedSamples) * 2]) * 0x50F4 / 0x8000 * SfxVolume);
out[1] =
DSPSampClamp(in[1] + s32(tex->audioBuf[(i + tex->playedSamples) * 2 + 1]) * 0x50F4 / 0x8000 * SfxVolume);
}
} else {
for (u32 i = 0; i < thisSamples; ++i, out += 2) {
out[0] = DSPSampClamp(s32(tex->audioBuf[(i + tex->playedSamples) * 2]) * 0x50F4 / 0x8000 * SfxVolume);
out[1] = DSPSampClamp(s32(tex->audioBuf[(i + tex->playedSamples) * 2 + 1]) * 0x50F4 / 0x8000 * SfxVolume);
}
}
tex->playedSamples += thisSamples;
samples -= thisSamples;
} else {
/* metaforce addition: failsafe for buffer overrun */
if (in)
memmove(out, in, samples * 4);
else
memset(out, 0, samples * 4);
// fprintf(stderr, "dropped %d samples\n", samples);
return;
}
}
}
void CMoviePlayer::MixStaticAudio(s16* out, const s16* in, u32 samples) {
if (!StaticAudio)
return;
while (samples) {
u32 thisSamples = std::min(StaticLoopEnd - StaticAudioOffset, samples);
const u8* thisOffsetLeft = &StaticAudio[StaticAudioOffset / 2];
const u8* thisOffsetRight = &StaticAudio[StaticAudioSize / 2 + StaticAudioOffset / 2];
/* metaforce addition: mix samples with `in` or no mix */
if (in) {
for (u32 i = 0; i < thisSamples; i += 2) {
out[0] = DSPSampClamp(
in[0] + s32(g721_decoder(thisOffsetLeft[0] & 0xf, &StaticStateLeft) * StaticVolumeAtten / 0x8000));
out[1] = DSPSampClamp(
in[1] + s32(g721_decoder(thisOffsetRight[0] & 0xf, &StaticStateRight) * StaticVolumeAtten / 0x8000));
out[2] = DSPSampClamp(
in[2] + s32(g721_decoder(thisOffsetLeft[0] >> 4 & 0xf, &StaticStateLeft) * StaticVolumeAtten / 0x8000));
out[3] = DSPSampClamp(
in[3] + s32(g721_decoder(thisOffsetRight[0] >> 4 & 0xf, &StaticStateRight) * StaticVolumeAtten / 0x8000));
thisOffsetLeft += 1;
thisOffsetRight += 1;
out += 4;
in += 4;
}
} else {
for (u32 i = 0; i < thisSamples; i += 2) {
out[0] =
DSPSampClamp(s32(g721_decoder(thisOffsetLeft[0] & 0xf, &StaticStateLeft) * StaticVolumeAtten / 0x8000));
out[1] =
DSPSampClamp(s32(g721_decoder(thisOffsetRight[0] & 0xf, &StaticStateRight) * StaticVolumeAtten / 0x8000));
out[2] = DSPSampClamp(
s32(g721_decoder(thisOffsetLeft[0] >> 4 & 0xf, &StaticStateLeft) * StaticVolumeAtten / 0x8000));
out[3] = DSPSampClamp(
s32(g721_decoder(thisOffsetRight[0] >> 4 & 0xf, &StaticStateRight) * StaticVolumeAtten / 0x8000));
thisOffsetLeft += 1;
thisOffsetRight += 1;
out += 4;
}
}
StaticAudioOffset += thisSamples;
if (StaticAudioOffset == StaticLoopEnd)
StaticAudioOffset = StaticLoopBegin;
samples -= thisSamples;
}
}
void CMoviePlayer::Rewind() {
if (x98_request) {
x98_request->PostCancelRequest();
x98_request.reset();
}
xb0_nextReadSize = x28_thpHead.firstFrameSize;
xb4_nextReadOff = x28_thpHead.firstFrameOffset;
xb8_readSizeWrapped = x28_thpHead.firstFrameSize;
xbc_readOffWrapped = x28_thpHead.firstFrameOffset;
xc0_curLoadFrame = 0;
xc4_requestFrameWrapped = 0;
xc8_curFrame = 0;
xcc_decodedTexSlot = 0;
xd0_drawTexSlot = -1;
xd4_audioSlot = -1;
xd8_decodedTexCount = 0;
xdc_frameRem = 0.f;
xe8_curSeconds = 0.f;
}
void CMoviePlayer::Draw() {
if (xd0_drawTexSlot == UINT32_MAX || !GetIsFullyCached()) {
return;
}
SCOPED_GRAPHICS_DEBUG_GROUP("CMoviePlayer::DrawFrame", zeus::skYellow);
/* Correct movie aspect ratio */
float hPad, vPad;
if (CGraphics::GetViewportAspect() >= 1.78f) {
hPad = 1.78f / CGraphics::GetViewportAspect();
vPad = 1.78f / 1.33f;
} else {
hPad = 1.f;
vPad = CGraphics::GetViewportAspect() / 1.33f;
}
/* draw appropriate field */
CTHPTextureSet& tex = x80_textures[xd0_drawTexSlot];
aurora::gfx::queue_movie_player(tex.Y[m_deinterlace ? (xfc_fieldIndex != 0) : 0], tex.U, tex.V, hPad, vPad);
/* ensure second field is being displayed by VI to signal advance
* (faked in metaforce with continuous xor) */
if (!xfc_fieldIndex && CGraphics::g_LastFrameUsedAbove)
xf4_26_fieldFlip = true;
++xfc_fieldIndex;
}
void CMoviePlayer::Update(float dt) {
if (xc0_curLoadFrame < xf0_preLoadFrames) {
/* in buffering phase, ensure read data is stored for mem-cache access */
if (x98_request && x98_request->IsComplete()) {
ReadCompleted();
if (xc0_curLoadFrame >= xa0_bufferQueue.size() && xc0_curLoadFrame < xf0_preLoadFrames &&
xa0_bufferQueue.size() < x28_thpHead.numFrames) {
PostDVDReadRequestIfNeeded();
}
}
} else {
/* out of buffering phase, skip mem-cache straight to decode */
if (x98_request) {
bool flag = false;
if (xc4_requestFrameWrapped >= xa0_bufferQueue.size() && xc0_curLoadFrame >= xa0_bufferQueue.size())
flag = true;
if (x98_request->IsComplete() && xd8_decodedTexCount < 2 && flag) {
DecodeFromRead(x90_requestBuf.get());
ReadCompleted();
PostDVDReadRequestIfNeeded();
++xd8_decodedTexCount;
++xc4_requestFrameWrapped;
if (xc4_requestFrameWrapped >= x28_thpHead.numFrames && xf4_24_loop)
xc4_requestFrameWrapped = 0;
}
}
}
/* submit request for additional read to keep stream-consumer happy
* (if buffer slot is available) */
if (!x98_request && xe0_playMode == EPlayMode::Playing && xa0_bufferQueue.size() < x28_thpHead.numFrames) {
PostDVDReadRequestIfNeeded();
}
/* decode frame directly from mem-cache if needed */
if (xd8_decodedTexCount < 2) {
if (xe0_playMode == EPlayMode::Playing && xc4_requestFrameWrapped < xf0_preLoadFrames) {
u32 minFrame = std::min(u32(xa0_bufferQueue.size()) - 1, xc4_requestFrameWrapped);
if (minFrame == UINT32_MAX)
return;
std::unique_ptr<uint8_t[]>& frameData = xa0_bufferQueue[minFrame];
DecodeFromRead(frameData.get());
++xd8_decodedTexCount;
++xc4_requestFrameWrapped;
if (xc4_requestFrameWrapped >= x28_thpHead.numFrames && xf4_24_loop)
xc4_requestFrameWrapped = 0;
}
}
/* paused THPs shall not pass */
if (xd8_decodedTexCount <= 0 || xe0_playMode != EPlayMode::Playing)
return;
/* timing update */
xe8_curSeconds += dt;
if (xf4_24_loop)
xe8_curSeconds = std::fmod(xe8_curSeconds, xe4_totalSeconds);
else
xe8_curSeconds = std::min(xe4_totalSeconds, xe8_curSeconds);
/* test remainder threshold, determine if frame needs to be advanced */
float frameDt = 1.f / x28_thpHead.fps;
float rem = xdc_frameRem - dt;
if (rem <= 0.f) {
if (!xf4_26_fieldFlip) {
/* second field has drawn, advance consumer-queue to next THP frame */
++xd0_drawTexSlot;
if (xd0_drawTexSlot >= x80_textures.size())
xd0_drawTexSlot = 0;
if (xd4_audioSlot == UINT32_MAX)
xd4_audioSlot = 0;
--xd8_decodedTexCount;
++xc8_curFrame;
if (xc8_curFrame == x28_thpHead.numFrames && xf4_24_loop)
xc8_curFrame = 0;
rem += frameDt;
xfc_fieldIndex = 0;
} else {
/* advance timing within second field */
rem += dt;
xf4_26_fieldFlip = false;
}
}
xdc_frameRem = rem;
}
void CMoviePlayer::DecodeFromRead(const void* data) {
const u8* inptr = (u8*)data;
CTHPTextureSet& tex = x80_textures[xcc_decodedTexSlot];
THPFrameHeader frameHeader = *static_cast<const THPFrameHeader*>(data);
frameHeader.swapBig();
inptr += 8 + x58_thpComponents.numComponents * 4;
for (u32 i = 0; i < x58_thpComponents.numComponents; ++i) {
switch (x58_thpComponents.comps[i]) {
case THPComponents::Type::Video: {
tjDecompressToYUV(TjHandle, (u8*)inptr, frameHeader.imageSize, m_yuvBuf.get(), 0);
inptr += frameHeader.imageSize;
uintptr_t planeSize = x6c_videoInfo.width * x6c_videoInfo.height;
uintptr_t planeSizeHalf = planeSize / 2;
uintptr_t planeSizeQuarter = planeSizeHalf / 2;
if (m_deinterlace) {
/* Deinterlace into 2 discrete 60-fps half-res textures */
auto buffer = std::make_unique<u8[]>(planeSizeHalf);
for (unsigned y = 0; y < x6c_videoInfo.height / 2; ++y) {
memcpy(buffer.get() + x6c_videoInfo.width * y, m_yuvBuf.get() + x6c_videoInfo.width * (y * 2),
x6c_videoInfo.width);
}
aurora::gfx::write_texture(*tex.Y[0], {buffer.get(), planeSizeHalf});
for (unsigned y = 0; y < x6c_videoInfo.height / 2; ++y) {
memcpy(buffer.get() + x6c_videoInfo.width * y, m_yuvBuf.get() + x6c_videoInfo.width * (y * 2 + 1),
x6c_videoInfo.width);
}
aurora::gfx::write_texture(*tex.Y[1], {buffer.get(), planeSizeHalf});
} else {
/* Direct planar load */
aurora::gfx::write_texture(*tex.Y[0], {m_yuvBuf.get(), planeSize});
}
aurora::gfx::write_texture(*tex.U, {m_yuvBuf.get() + planeSize, planeSizeQuarter});
aurora::gfx::write_texture(*tex.V, {m_yuvBuf.get() + planeSize + planeSizeQuarter, planeSizeQuarter});
break;
}
case THPComponents::Type::Audio:
memset(tex.audioBuf.get(), 0, x28_thpHead.maxAudioSamples * 4);
tex.audioSamples = THPAudioDecode(tex.audioBuf.get(), (u8*)inptr, x74_audioInfo.numChannels == 2);
tex.playedSamples = 0;
inptr += frameHeader.audioSize;
break;
default:
break;
}
}
/* advance YUV producer-queue slot */
++xcc_decodedTexSlot;
if (xcc_decodedTexSlot == x80_textures.size())
xcc_decodedTexSlot = 0;
}
void CMoviePlayer::ReadCompleted() {
std::unique_ptr<uint8_t[]> buffer = std::move(x90_requestBuf);
x98_request.reset();
const THPFrameHeader* frameHeader = reinterpret_cast<const THPFrameHeader*>(buffer.get());
/* transfer request buffer to mem-cache if needed */
if (xc0_curLoadFrame == xa0_bufferQueue.size() && xf0_preLoadFrames > xc0_curLoadFrame)
xa0_bufferQueue.push_back(std::move(buffer));
/* store params of next read operation */
xb4_nextReadOff += xb0_nextReadSize;
xb0_nextReadSize = SBig(frameHeader->nextSize);
++xc0_curLoadFrame;
if (xc0_curLoadFrame == xf0_preLoadFrames) {
if (x28_thpHead.numFrames == xc0_curLoadFrame) {
xb8_readSizeWrapped = x28_thpHead.firstFrameSize;
xbc_readOffWrapped = x28_thpHead.firstFrameOffset;
} else {
xb8_readSizeWrapped = xb0_nextReadSize;
xbc_readOffWrapped = xb4_nextReadOff;
}
}
/* handle loop-event read */
if (xc0_curLoadFrame >= x28_thpHead.numFrames && xf4_24_loop) {
xb4_nextReadOff = xbc_readOffWrapped;
xb0_nextReadSize = xb8_readSizeWrapped;
xc0_curLoadFrame = xf0_preLoadFrames;
}
}
void CMoviePlayer::PostDVDReadRequestIfNeeded() {
if (xc0_curLoadFrame < x28_thpHead.numFrames) {
x90_requestBuf.reset(new uint8_t[xb0_nextReadSize]);
x98_request = AsyncSeekRead(x90_requestBuf.get(), xb0_nextReadSize, ESeekOrigin::Begin, xb4_nextReadOff);
}
}
} // namespace metaforce
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