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mkxp-z/src/display/graphics.cpp
Snowdream dba559aafb Make Graphics thread-safety optional
2022-07-16 20:16:09 -04:00

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/*
** graphics.cpp
**
** This file is part of mkxp.
**
** Copyright (C) 2013 Jonas Kulla <Nyocurio@gmail.com>
**
** mkxp is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 2 of the License, or
** (at your option) any later version.
**
** mkxp is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with mkxp. If not, see <http://www.gnu.org/licenses/>.
*/
#include "graphics.h"
#include "audio.h"
#include "binding.h"
#include "bitmap.h"
#include "config.h"
#include "debugwriter.h"
#include "disposable.h"
#include "etc-internal.h"
#include "eventthread.h"
#include "filesystem.h"
#include "gl-fun.h"
#include "gl-util.h"
#include "glstate.h"
#include "intrulist.h"
#include "quad.h"
#include "scene.h"
#include "shader.h"
#include "sharedstate.h"
#include "texpool.h"
#include "theoraplay/theoraplay.h"
#include "util.h"
#include "input.h"
#include "sprite.h"
#include <SDL.h>
#include <SDL_image.h>
#include <SDL_timer.h>
#include <SDL_video.h>
#include <SDL_mutex.h>
#include <SDL_thread.h>
#ifdef MKXPZ_STEAM
#include "steamshim_child.h"
#endif
#include <algorithm>
#include <errno.h>
#include <sys/time.h>
#include <unistd.h>
#include <time.h>
#include <cmath>
#define DEF_SCREEN_W (rgssVer == 1 ? 640 : 544)
#define DEF_SCREEN_H (rgssVer == 1 ? 480 : 416)
#define DEF_FRAMERATE (rgssVer == 1 ? 40 : 60)
#define DEF_MAX_VIDEO_FRAMES 30
#define VIDEO_DELAY 10
#define AUDIO_DELAY 100
typedef struct AudioQueue
{
const THEORAPLAY_AudioPacket *audio;
int offset;
struct AudioQueue *next;
} AudioQueue;
static volatile AudioQueue *movieAudioQueue;
static volatile AudioQueue *movieAudioQueueTail;
static long readMovie(THEORAPLAY_Io *io, void *buf, long buflen)
{
SDL_RWops *f = (SDL_RWops *) io->userdata;
return (long) SDL_RWread(f, buf, 1, buflen);
} // IoFopenRead
static void closeMovie(THEORAPLAY_Io *io)
{
SDL_RWops *f = (SDL_RWops *) io->userdata;
SDL_RWclose(f);
free(io);
} // IoFopenClose
struct Movie
{
THEORAPLAY_Decoder *decoder;
const THEORAPLAY_AudioPacket *audio;
const THEORAPLAY_VideoFrame *video;
bool hasVideo;
bool hasAudio;
bool skippable;
Bitmap *videoBitmap;
SDL_RWops srcOps;
static float volume;
Movie(int volume_, bool skippable_)
: decoder(0), audio(0), video(0), skippable(skippable_), videoBitmap(0)
{
volume = volume_ * 0.01f;
}
bool preparePlayback()
{
// https://theora.org/doc/libtheora-1.0/codec_8h.html
// https://ffmpeg.org/doxygen/0.11/group__lavc__misc__pixfmt.html
THEORAPLAY_Io *io = (THEORAPLAY_Io *) malloc(sizeof (THEORAPLAY_Io));
if(!io) {
SDL_RWclose(&srcOps);
return false;
}
io->read = readMovie;
io->close = closeMovie;
io->userdata = &srcOps;
decoder = THEORAPLAY_startDecode(io, DEF_MAX_VIDEO_FRAMES, THEORAPLAY_VIDFMT_RGBA);
if (!decoder) {
SDL_RWclose(&srcOps);
return false;
}
// Wait until the decoder has parsed out some basic truths from the file.
while (!THEORAPLAY_isInitialized(decoder)) {
SDL_Delay(VIDEO_DELAY);
}
// Once we're initialized, we can tell if this file has audio and/or video.
hasAudio = THEORAPLAY_hasAudioStream(decoder);
hasVideo = THEORAPLAY_hasVideoStream(decoder);
// Queue up the audio
if (hasAudio) {
while ((audio = THEORAPLAY_getAudio(decoder)) == NULL) {
if ((THEORAPLAY_availableVideo(decoder) >= DEF_MAX_VIDEO_FRAMES)) {
break; // we'll never progress, there's no audio yet but we've prebuffered as much as we plan to.
}
SDL_Delay(VIDEO_DELAY);
}
}
// No video, so no point in doing anything else
if (!hasVideo) {
THEORAPLAY_stopDecode(decoder);
return false;
}
// Wait until we have video
while ((video = THEORAPLAY_getVideo(decoder)) == NULL) {
SDL_Delay(VIDEO_DELAY);
}
// Wait until we have audio, if applicable
audio = NULL;
if (hasAudio) {
while ((audio = THEORAPLAY_getAudio(decoder)) == NULL && THEORAPLAY_availableVideo(decoder) < DEF_MAX_VIDEO_FRAMES) {
SDL_Delay(VIDEO_DELAY);
}
}
videoBitmap = new Bitmap(video->width, video->height);
movieAudioQueue = NULL;
movieAudioQueueTail = NULL;
return true;
}
static void queueAudioPacket(const THEORAPLAY_AudioPacket *audio) {
AudioQueue *item = NULL;
if (!audio) {
return;
}
item = (AudioQueue *) malloc(sizeof (AudioQueue));
if (!item) {
THEORAPLAY_freeAudio(audio);
return; // oh well.
}
item->audio = audio;
item->offset = 0;
item->next = NULL;
SDL_LockAudio();
if (movieAudioQueueTail) {
movieAudioQueueTail->next = item;
} else {
movieAudioQueue = item;
}
movieAudioQueueTail = item;
SDL_UnlockAudio();
}
static void queueMoreMovieAudio(THEORAPLAY_Decoder *decoder, const Uint32 now) {
const THEORAPLAY_AudioPacket *audio;
while ((audio = THEORAPLAY_getAudio(decoder)) != NULL) {
queueAudioPacket(audio);
if (audio->playms >= now + 2000) { // don't let this get too far ahead.
break;
}
}
}
static void SDLCALL movieAudioCallback(void *userdata, uint8_t *stream, int len) {
// !!! FIXME: this should refuse to play if item->playms is in the future.
//const Uint32 now = SDL_GetTicks() - baseticks;
Sint16 *dst = (Sint16 *) stream;
while (movieAudioQueue && (len > 0)) {
volatile AudioQueue *item = movieAudioQueue;
AudioQueue *next = item->next;
const int channels = item->audio->channels;
const float *src = item->audio->samples + (item->offset * channels);
unsigned int cpy = (item->audio->frames - item->offset) * channels;
if (cpy > (len / sizeof (Sint16))) {
cpy = len / sizeof (Sint16);
}
for (unsigned int i = 0; i < cpy; i++) {
const float val = (*(src++)) * volume;
if (val < -1.0f) {
*(dst++) = -32768;
} else if (val > 1.0f) {
*(dst++) = 32767;
} else {
*(dst++) = (Sint16) (val * 32767.0f);
}
}
item->offset += (cpy / channels);
len -= cpy * sizeof (Sint16);
if (item->offset >= item->audio->frames) {
THEORAPLAY_freeAudio(item->audio);
free((void *) item);
movieAudioQueue = next;
}
}
if (!movieAudioQueue) {
movieAudioQueueTail = NULL;
}
if (len > 0) {
memset(dst, '\0', len);
}
}
bool startAudio()
{
SDL_AudioSpec spec{};
spec.freq = audio->freq;
spec.format = AUDIO_S16SYS;
spec.channels = audio->channels;
spec.samples = 2048;
spec.callback = movieAudioCallback;
if (SDL_OpenAudio(&spec, NULL) != 0) {
return false;
}
queueAudioPacket(audio);
audio = NULL;
queueMoreMovieAudio(decoder, 0);
SDL_PauseAudio(0); // Start audio playback
return true;
}
void play()
{
// Assuming every frame has the same duration.
// Uint32 frameMs = (video->fps == 0.0) ? 0 : ((Uint32) (1000.0 / video->fps));
Uint32 baseTicks = SDL_GetTicks();
bool openedAudio = false;
while (THEORAPLAY_isDecoding(decoder)) {
// Check for reset/shutdown input
if(shState->graphics().updateMovieInput(this)) break;
// Check for attempted skip
if (skippable) {
shState->input().update();
if (shState->input().isTriggered(Input::C) || shState->input().isTriggered(Input::B)) break;
}
const Uint32 now = SDL_GetTicks() - baseTicks;
if (!video) {
video = THEORAPLAY_getVideo(decoder);
}
if (hasAudio) {
if (!audio) {
audio = THEORAPLAY_getAudio(decoder);
}
if (audio && !openedAudio) {
if(!startAudio()){
Debug() << "Error opening movie audio!";
break;
}
openedAudio = true;
}
}
// Got a video frame, now draw it
if (video) {
videoBitmap->replaceRaw(video->pixels, video->width * video->height * 4);
THEORAPLAY_freeVideo(video);
video = NULL;
}
shState->graphics().update(false);
if (openedAudio) {
queueMoreMovieAudio(decoder, now);
}
}
}
~Movie()
{
if (hasAudio) {
if (movieAudioQueueTail) {
THEORAPLAY_freeAudio(movieAudioQueueTail->audio);
}
movieAudioQueueTail = NULL;
if (movieAudioQueue) {
THEORAPLAY_freeAudio(movieAudioQueue->audio);
}
movieAudioQueue = NULL;
}
if (video) THEORAPLAY_freeVideo(video);
if (audio) THEORAPLAY_freeAudio(audio);
if (decoder) THEORAPLAY_stopDecode(decoder);
SDL_CloseAudio();
delete videoBitmap;
}
};
float Movie::volume;
struct MovieOpenHandler : FileSystem::OpenHandler
{
SDL_RWops *srcOps;
MovieOpenHandler(SDL_RWops &srcOps)
: srcOps(&srcOps)
{}
bool tryRead(SDL_RWops &ops, const char *ext)
{
*srcOps = ops;
return true;
}
};
struct PingPong {
TEXFBO rt[2];
uint8_t srcInd, dstInd;
int screenW, screenH;
PingPong(int screenW, int screenH)
: srcInd(0), dstInd(1), screenW(screenW), screenH(screenH) {
for (int i = 0; i < 2; ++i) {
TEXFBO::init(rt[i]);
TEXFBO::allocEmpty(rt[i], screenW, screenH);
TEXFBO::linkFBO(rt[i]);
gl.ClearColor(0, 0, 0, 1);
FBO::clear();
}
}
~PingPong() {
for (int i = 0; i < 2; ++i)
TEXFBO::fini(rt[i]);
}
TEXFBO &backBuffer() { return rt[srcInd]; }
TEXFBO &frontBuffer() { return rt[dstInd]; }
/* Better not call this during render cycles */
void resize(int width, int height) {
screenW = width;
screenH = height;
for (int i = 0; i < 2; ++i)
TEXFBO::allocEmpty(rt[i], width, height);
}
void startRender() { bind(); }
void swapRender() {
std::swap(srcInd, dstInd);
bind();
}
void clearBuffers() {
glState.clearColor.pushSet(Vec4(0, 0, 0, 1));
for (int i = 0; i < 2; ++i) {
FBO::bind(rt[i].fbo);
FBO::clear();
}
glState.clearColor.pop();
}
private:
void bind() { FBO::bind(rt[dstInd].fbo); }
};
class ScreenScene : public Scene {
public:
ScreenScene(int width, int height) : pp(width, height) {
updateReso(width, height);
brightEffect = false;
brightnessQuad.setColor(Vec4());
}
void composite() {
const int w = geometry.rect.w;
const int h = geometry.rect.h;
shState->prepareDraw();
pp.startRender();
glState.viewport.set(IntRect(0, 0, w, h));
FBO::clear();
Scene::composite();
if (brightEffect) {
SimpleColorShader &shader = shState->shaders().simpleColor;
shader.bind();
shader.applyViewportProj();
shader.setTranslation(Vec2i());
brightnessQuad.draw();
}
}
void requestViewportRender(const Vec4 &c, const Vec4 &f, const Vec4 &t) {
const IntRect &viewpRect = glState.scissorBox.get();
const IntRect &screenRect = geometry.rect;
const bool toneRGBEffect = t.xyzNotNull();
const bool toneGrayEffect = t.w != 0;
const bool colorEffect = c.w > 0;
const bool flashEffect = f.w > 0;
if (toneGrayEffect) {
pp.swapRender();
if (!viewpRect.encloses(screenRect)) {
/* Scissor test _does_ affect FBO blit operations,
* and since we're inside the draw cycle, it will
* be turned on, so turn it off temporarily */
glState.scissorTest.pushSet(false);
GLMeta::blitBegin(pp.frontBuffer());
GLMeta::blitSource(pp.backBuffer());
GLMeta::blitRectangle(geometry.rect, Vec2i());
GLMeta::blitEnd();
glState.scissorTest.pop();
}
GrayShader &shader = shState->shaders().gray;
shader.bind();
shader.setGray(t.w);
shader.applyViewportProj();
shader.setTexSize(screenRect.size());
TEX::bind(pp.backBuffer().tex);
glState.blend.pushSet(false);
screenQuad.draw();
glState.blend.pop();
}
if (!toneRGBEffect && !colorEffect && !flashEffect)
return;
FlatColorShader &shader = shState->shaders().flatColor;
shader.bind();
shader.applyViewportProj();
if (toneRGBEffect) {
/* First split up additive / substractive components */
Vec4 add, sub;
if (t.x > 0)
add.x = t.x;
if (t.y > 0)
add.y = t.y;
if (t.z > 0)
add.z = t.z;
if (t.x < 0)
sub.x = -t.x;
if (t.y < 0)
sub.y = -t.y;
if (t.z < 0)
sub.z = -t.z;
/* Then apply them using hardware blending */
gl.BlendFuncSeparate(GL_ONE, GL_ONE, GL_ZERO, GL_ONE);
if (add.xyzNotNull()) {
gl.BlendEquation(GL_FUNC_ADD);
shader.setColor(add);
screenQuad.draw();
}
if (sub.xyzNotNull()) {
gl.BlendEquation(GL_FUNC_REVERSE_SUBTRACT);
shader.setColor(sub);
screenQuad.draw();
}
}
if (colorEffect || flashEffect) {
gl.BlendEquation(GL_FUNC_ADD);
gl.BlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ZERO,
GL_ONE);
}
if (colorEffect) {
shader.setColor(c);
screenQuad.draw();
}
if (flashEffect) {
shader.setColor(f);
screenQuad.draw();
}
glState.blendMode.refresh();
}
void setBrightness(float norm) {
brightnessQuad.setColor(Vec4(0, 0, 0, 1.0f - norm));
brightEffect = norm < 1.0f;
}
void updateReso(int width, int height) {
geometry.rect.w = width;
geometry.rect.h = height;
screenQuad.setTexPosRect(geometry.rect, geometry.rect);
brightnessQuad.setTexPosRect(geometry.rect, geometry.rect);
notifyGeometryChange();
}
void setResolution(int width, int height) {
pp.resize(width, height);
updateReso(width, height);
}
PingPong &getPP() { return pp; }
private:
PingPong pp;
Quad screenQuad;
Quad brightnessQuad;
bool brightEffect;
};
/* Nanoseconds per second */
#define NS_PER_S 1000000000
struct FPSLimiter {
uint64_t lastTickCount;
/* ticks per frame */
int64_t tpf;
/* Ticks per second */
const uint64_t tickFreq;
/* Ticks per milisecond */
const uint64_t tickFreqMS;
/* Ticks per nanosecond */
const double tickFreqNS;
bool disabled;
/* Data for frame timing adjustment */
struct {
/* Last tick count */
uint64_t last;
/* How far behind/in front we are for ideal frame timing */
int64_t idealDiff;
bool resetFlag;
} adj;
FPSLimiter(uint16_t desiredFPS)
: lastTickCount(SDL_GetPerformanceCounter()),
tickFreq(SDL_GetPerformanceFrequency()), tickFreqMS(tickFreq / 1000),
tickFreqNS((double)tickFreq / NS_PER_S), disabled(false) {
setDesiredFPS(desiredFPS);
adj.last = SDL_GetPerformanceCounter();
adj.idealDiff = 0;
adj.resetFlag = false;
}
void setDesiredFPS(uint16_t value) { tpf = tickFreq / value; }
void delay() {
if (disabled)
return;
int64_t tickDelta = SDL_GetPerformanceCounter() - lastTickCount;
int64_t toDelay = tpf - tickDelta;
/* Compensate for the last delta
* to the ideal timestep */
toDelay -= adj.idealDiff;
if (toDelay < 0)
toDelay = 0;
delayTicks(toDelay);
uint64_t now = lastTickCount = SDL_GetPerformanceCounter();
int64_t diff = now - adj.last;
adj.last = now;
/* Recalculate our temporal position
* relative to the ideal timestep */
adj.idealDiff = diff - tpf + adj.idealDiff;
if (adj.resetFlag) {
adj.idealDiff = 0;
adj.resetFlag = false;
}
}
void resetFrameAdjust() { adj.resetFlag = true; }
/* If we're more than a full frame's worth
* of ticks behind the ideal timestep,
* there's no choice but to skip frame(s)
* to catch up */
bool frameSkipRequired() const {
if (disabled)
return false;
return adj.idealDiff > tpf;
}
private:
void delayTicks(uint64_t ticks) {
#if defined(HAVE_NANOSLEEP)
struct timespec req;
uint64_t nsec = ticks / tickFreqNS;
req.tv_sec = nsec / NS_PER_S;
req.tv_nsec = nsec % NS_PER_S;
errno = 0;
while (nanosleep(&req, &req) == -1) {
int err = errno;
errno = 0;
if (err == EINTR)
continue;
Debug() << "nanosleep failed. errno:" << err;
SDL_Delay(ticks / tickFreqMS);
break;
}
#else
SDL_Delay(ticks / tickFreqMS);
#endif
}
};
struct GraphicsPrivate {
/* Screen resolution, ie. the resolution at which
* RGSS renders at (settable with Graphics.resize_screen).
* Can only be changed from within RGSS */
Vec2i scRes;
/* Screen size, to which the rendered frames are scaled up.
* This can be smaller than the window size when fixed aspect
* ratio is enforced */
Vec2i scSize;
/* Actual physical size of the game window */
Vec2i winSize;
/* Offset in the game window at which the scaled game screen
* is blitted inside the game window */
Vec2i scOffset;
// Scaling factor, used to display the screen properly
// on Retina displays
int scalingFactor;
ScreenScene screen;
RGSSThreadData *threadData;
SDL_GLContext glCtx;
int frameRate;
int frameCount;
int brightness;
unsigned long long last_update;
FPSLimiter fpsLimiter;
// Can be set from Ruby. Takes priority over config setting.
bool useFrameSkip;
bool frozen;
TEXFBO frozenScene;
Quad screenQuad;
float backingScaleFactor;
Vec2i integerScaleFactor;
TEXFBO integerScaleBuffer;
bool integerScaleActive;
bool integerLastMileScaling;
std::vector<unsigned long long> avgFPSData;
unsigned long long last_avg_update;
SDL_mutex *avgFPSLock;
SDL_mutex *glResourceLock;
bool multithreadedMode;
/* Global list of all live Disposables
* (disposed on reset) */
IntruList<Disposable> dispList;
GraphicsPrivate(RGSSThreadData *rtData)
: scRes(DEF_SCREEN_W, DEF_SCREEN_H), scSize(scRes),
winSize(rtData->config.defScreenW, rtData->config.defScreenH),
screen(scRes.x, scRes.y), threadData(rtData),
glCtx(SDL_GL_GetCurrentContext()), multithreadedMode(true),
frameRate(DEF_FRAMERATE), frameCount(0), brightness(255),
fpsLimiter(frameRate), useFrameSkip(rtData->config.frameSkip), frozen(false),
last_update(0), last_avg_update(0), backingScaleFactor(1), integerScaleFactor(0, 0),
integerScaleActive(rtData->config.integerScaling.active),
integerLastMileScaling(rtData->config.integerScaling.lastMileScaling) {
avgFPSData = std::vector<unsigned long long>();
avgFPSLock = SDL_CreateMutex();
glResourceLock = SDL_CreateMutex();
if (integerScaleActive) {
integerScaleFactor = Vec2i(0, 0);
rebuildIntegerScaleBuffer();
}
recalculateScreenSize(rtData);
updateScreenResoRatio(rtData);
TEXFBO::init(frozenScene);
TEXFBO::allocEmpty(frozenScene, scRes.x, scRes.y);
TEXFBO::linkFBO(frozenScene);
FloatRect screenRect(0, 0, scRes.x, scRes.y);
screenQuad.setTexPosRect(screenRect, screenRect);
fpsLimiter.resetFrameAdjust();
}
~GraphicsPrivate() {
TEXFBO::fini(frozenScene);
TEXFBO::fini(integerScaleBuffer);
SDL_DestroyMutex(avgFPSLock);
SDL_DestroyMutex(glResourceLock);
}
void updateScreenResoRatio(RGSSThreadData *rtData) {
Vec2 &ratio = rtData->sizeResoRatio;
ratio.x = (float)scRes.x / scSize.x * backingScaleFactor;
ratio.y = (float)scRes.y / scSize.y * backingScaleFactor;
rtData->screenOffset = scOffset / backingScaleFactor;
}
/* Enforces fixed aspect ratio, if desired */
void recalculateScreenSize(bool fixedAspectRatio) {
scSize = winSize;
if (!fixedAspectRatio && integerLastMileScaling) {
scOffset = Vec2i(0, 0);
return;
}
if (integerScaleActive && !integerLastMileScaling) {
scOffset.x = ((winSize.x / 2) - (scRes.x / 2) * integerScaleFactor.x);
scOffset.y = ((winSize.y / 2) - (scRes.y / 2) * integerScaleFactor.y);
scSize = Vec2i(scRes.x * integerScaleFactor.x, scRes.y * integerScaleFactor.y);
return;
}
float resRatio = (float)scRes.x / scRes.y;
float winRatio = (float)winSize.x / winSize.y;
if (resRatio > winRatio)
scSize.y = scSize.x / resRatio;
else if (resRatio < winRatio)
scSize.x = scSize.y * resRatio;
scOffset.x = (winSize.x - scSize.x) / 2.f;
scOffset.y = (winSize.y - scSize.y) / 2.f;
}
static int findHighestFittingScale(int base, int target) {
int scale = 1;
while (base * scale <= target)
scale++;
return std::max(scale - 1, 1);
}
/* Returns whether a new scale was found */
bool findHighestIntegerScale()
{
Vec2i newScale(findHighestFittingScale(scRes.x, winSize.x),
findHighestFittingScale(scRes.y, winSize.y));
if (threadData->config.fixedAspectRatio)
{
/* Limit both factors to the smaller of the two */
newScale.x = newScale.y = std::min(newScale.x, newScale.y);
}
if (newScale == integerScaleFactor)
return false;
integerScaleFactor = newScale;
return true;
}
void rebuildIntegerScaleBuffer()
{
TEXFBO::fini(integerScaleBuffer);
TEXFBO::init(integerScaleBuffer);
TEXFBO::allocEmpty(integerScaleBuffer, scRes.x * integerScaleFactor.x,
scRes.y * integerScaleFactor.y);
TEXFBO::linkFBO(integerScaleBuffer);
}
bool integerScaleStepApplicable() const
{
if (!integerScaleActive)
return false;
if (integerScaleFactor.x < 1 || integerScaleFactor.y < 1) // XXX should be < 2, this is for testing only
return false;
return true;
}
void checkResize(bool skipIntScaleBuffer = false) {
if (threadData->windowSizeMsg.poll(winSize)) {
/* Query the actual size in pixels, not units */
Vec2i drawableSize(winSize);
threadData->drawableSizeMsg.poll(drawableSize);
backingScaleFactor = drawableSize.x / winSize.x;
winSize = drawableSize;
/* Make sure integer buffers are rebuilt before screen offsets are
* calculated so we have the final allocated buffer size ready */
if (integerScaleActive && findHighestIntegerScale() && !skipIntScaleBuffer)
rebuildIntegerScaleBuffer();
/* some GL drivers change the viewport on window resize */
glState.viewport.refresh();
recalculateScreenSize(threadData);
updateScreenResoRatio(threadData);
SDL_Rect screen = {scOffset.x, scOffset.y, scSize.x, scSize.y};
threadData->ethread->notifyGameScreenChange(screen);
}
}
void checkShutDownReset() {
shState->checkShutdown();
shState->checkReset();
}
void shutdown() {
threadData->rqTermAck.set();
shState->texPool().disable();
scriptBinding->terminate();
}
void swapGLBuffer() {
fpsLimiter.delay();
SDL_GL_SwapWindow(threadData->window);
++frameCount;
threadData->ethread->notifyFrame();
}
void compositeToBuffer(TEXFBO &buffer) {
screen.composite();
GLMeta::blitBegin(buffer);
GLMeta::blitSource(screen.getPP().frontBuffer());
GLMeta::blitRectangle(IntRect(0, 0, scRes.x, scRes.y), Vec2i());
GLMeta::blitEnd();
}
void metaBlitBufferFlippedScaled() {
metaBlitBufferFlippedScaled(scRes);
GLMeta::blitRectangle(
IntRect(0, 0, scRes.x, scRes.y),
IntRect(scOffset.x,
(scSize.y + scOffset.y),
scSize.x,
-scSize.y),
threadData->config.smoothScaling);
}
void metaBlitBufferFlippedScaled(const Vec2i &sourceSize, bool forceNearestNeighbor=false) {
GLMeta::blitRectangle(IntRect(0, 0, sourceSize.x, sourceSize.y),
IntRect(scOffset.x, scSize.y+scOffset.y, scSize.x, -scSize.y),
!forceNearestNeighbor && threadData->config.smoothScaling);
}
void redrawScreen() {
screen.composite();
// maybe unspaghetti this later
if (integerScaleStepApplicable() && !integerLastMileScaling)
{
GLMeta::blitBeginScreen(winSize);
GLMeta::blitSource(screen.getPP().frontBuffer());
FBO::clear();
metaBlitBufferFlippedScaled(scRes, true);
GLMeta::blitEnd();
swapGLBuffer();
return;
}
if (integerScaleStepApplicable())
{
assert(integerScaleBuffer.tex != TEX::ID(0));
GLMeta::blitBegin(integerScaleBuffer);
GLMeta::blitSource(screen.getPP().frontBuffer());
GLMeta::blitRectangle(IntRect(0, 0, scRes.x, scRes.y),
IntRect(0, 0, integerScaleBuffer.width, integerScaleBuffer.height),
false);
GLMeta::blitEnd();
}
GLMeta::blitBeginScreen(winSize);
//GLMeta::blitSource(screen.getPP().frontBuffer());
Vec2i sourceSize;
if (integerScaleActive)
{
GLMeta::blitSource(integerScaleBuffer);
sourceSize = Vec2i(integerScaleBuffer.width, integerScaleBuffer.height);
}
else
{
GLMeta::blitSource(screen.getPP().frontBuffer());
sourceSize = scRes;
}
FBO::clear();
metaBlitBufferFlippedScaled(sourceSize);
GLMeta::blitEnd();
swapGLBuffer();
SDL_LockMutex(avgFPSLock);
if (avgFPSData.size() > 40)
avgFPSData.erase(avgFPSData.begin());
unsigned long long time = shState->runTime();
avgFPSData.push_back(time - last_avg_update);
last_avg_update = time;
SDL_UnlockMutex(avgFPSLock);
}
void checkSyncLock() {
if (!threadData->syncPoint.mainSyncLocked())
return;
/* Releasing the GL context before sleeping and making it
* current again on wakeup seems to avoid the context loss
* when the app moves into the background on Android */
SDL_GL_MakeCurrent(threadData->window, 0);
threadData->syncPoint.waitMainSync();
SDL_GL_MakeCurrent(threadData->window, glCtx);
fpsLimiter.resetFrameAdjust();
}
double averageFPS() {
double ret = 0;
SDL_LockMutex(avgFPSLock);
for (unsigned long long times : avgFPSData)
ret += times;
ret = 1 / (ret / avgFPSData.size() / 1000000);
SDL_UnlockMutex(avgFPSLock);
return ret;
}
void setLock(bool force = false) {
if (!(force || multithreadedMode)) return;
SDL_LockMutex(glResourceLock);
SDL_GL_MakeCurrent(threadData->window, threadData->glContext);
}
void releaseLock(bool force = false) {
if (!(force || multithreadedMode)) return;
SDL_UnlockMutex(glResourceLock);
}
};
Graphics::Graphics(RGSSThreadData *data) {
p = new GraphicsPrivate(data);
if (data->config.syncToRefreshrate) {
p->frameRate = data->refreshRate;
p->fpsLimiter.disabled = true;
} else if (data->config.fixedFramerate > 0) {
p->fpsLimiter.setDesiredFPS(data->config.fixedFramerate);
} else if (data->config.fixedFramerate < 0) {
p->fpsLimiter.disabled = true;
}
}
Graphics::~Graphics() { delete p; }
unsigned long long Graphics::getDelta() {
return shState->runTime() - p->last_update;
}
unsigned long long Graphics::lastUpdate() {
return p->last_update;
}
void Graphics::update(bool checkForShutdown) {
p->threadData->rqWindowAdjust.wait();
p->last_update = shState->runTime();
if (checkForShutdown)
p->checkShutDownReset();
p->checkSyncLock();
#ifdef MKXPZ_STEAM
if (STEAMSHIM_alive())
STEAMSHIM_pump();
#endif
if (p->frozen)
return;
if (p->fpsLimiter.frameSkipRequired()) {
if (p->useFrameSkip) {
/* Skip frame */
p->fpsLimiter.delay();
++p->frameCount;
p->threadData->ethread->notifyFrame();
return;
} else {
/* Just reset frame adjust counter */
p->fpsLimiter.resetFrameAdjust();
}
}
p->checkResize();
p->redrawScreen();
}
void Graphics::freeze() {
p->frozen = true;
p->checkShutDownReset();
p->checkResize();
/* Capture scene into frozen buffer */
p->compositeToBuffer(p->frozenScene);
}
void Graphics::transition(int duration, const char *filename, int vague) {
p->checkSyncLock();
if (!p->frozen)
return;
vague = clamp(vague, 1, 256);
Bitmap *transMap = *filename ? new Bitmap(filename) : 0;
setBrightness(255);
/* Capture new scene */
p->screen.composite();
/* The PP frontbuffer will hold the current scene after the
* composition step. Since the backbuffer is unused during
* the transition, we can reuse it as the target buffer for
* the final rendered image. */
TEXFBO &currentScene = p->screen.getPP().frontBuffer();
TEXFBO &transBuffer = p->screen.getPP().backBuffer();
/* If no transition bitmap is provided,
* we can use a simplified shader */
TransShader &transShader = shState->shaders().trans;
SimpleTransShader &simpleShader = shState->shaders().simpleTrans;
if (transMap) {
TransShader &shader = transShader;
shader.bind();
shader.applyViewportProj();
shader.setFrozenScene(p->frozenScene.tex);
shader.setCurrentScene(currentScene.tex);
shader.setTransMap(transMap->getGLTypes().tex);
shader.setVague(vague / 256.0f);
shader.setTexSize(p->scRes);
} else {
SimpleTransShader &shader = simpleShader;
shader.bind();
shader.applyViewportProj();
shader.setFrozenScene(p->frozenScene.tex);
shader.setCurrentScene(currentScene.tex);
shader.setTexSize(p->scRes);
}
glState.blend.pushSet(false);
for (int i = 0; i < duration; ++i) {
/* We need to clean up transMap properly before
* a possible longjmp, so we manually test for
* shutdown/reset here */
if (p->threadData->rqTerm) {
glState.blend.pop();
delete transMap;
p->shutdown();
return;
}
if (p->threadData->rqReset) {
glState.blend.pop();
delete transMap;
scriptBinding->reset();
return;
}
p->checkSyncLock();
const float prog = i * (1.0f / duration);
if (transMap) {
transShader.bind();
transShader.setProg(prog);
} else {
simpleShader.bind();
simpleShader.setProg(prog);
}
/* Draw the composed frame to a buffer first
* (we need this because we're skipping PingPong) */
FBO::bind(transBuffer.fbo);
FBO::clear();
p->screenQuad.draw();
p->checkResize();
/* Then blit it flipped and scaled to the screen */
FBO::unbind();
FBO::clear();
GLMeta::blitBeginScreen(Vec2i(p->winSize));
GLMeta::blitSource(transBuffer);
p->metaBlitBufferFlippedScaled();
GLMeta::blitEnd();
p->swapGLBuffer();
}
glState.blend.pop();
delete transMap;
p->frozen = false;
}
void Graphics::frameReset() {p->fpsLimiter.resetFrameAdjust();}
static void guardDisposed() {}
DEF_ATTR_RD_SIMPLE(Graphics, FrameRate, int, p->frameRate)
DEF_ATTR_SIMPLE(Graphics, FrameCount, int, p->frameCount)
void Graphics::setFrameRate(int value) {
p->frameRate = clamp(value, 10, 120);
if (p->threadData->config.syncToRefreshrate)
return;
if (p->threadData->config.fixedFramerate > 0)
return;
p->fpsLimiter.setDesiredFPS(p->frameRate);
shState->input().recalcRepeat((unsigned int)p->frameRate);
}
double Graphics::averageFrameRate() {
return p->averageFPS();
}
void Graphics::wait(int duration) {
for (int i = 0; i < duration; ++i) {
p->checkShutDownReset();
p->redrawScreen();
}
}
void Graphics::fadeout(int duration) {
FBO::unbind();
float curr = p->brightness;
float diff = 255.0f - curr;
for (int i = duration - 1; i > -1; --i) {
setBrightness(diff + (curr / duration) * i);
if (p->frozen) {
GLMeta::blitBeginScreen(p->scSize);
GLMeta::blitSource(p->frozenScene);
FBO::clear();
p->metaBlitBufferFlippedScaled();
GLMeta::blitEnd();
p->swapGLBuffer();
} else {
update();
}
}
}
void Graphics::fadein(int duration) {
FBO::unbind();
float curr = p->brightness;
float diff = 255.0f - curr;
for (int i = 1; i <= duration; ++i) {
setBrightness(curr + (diff / duration) * i);
if (p->frozen) {
GLMeta::blitBeginScreen(p->scSize);
GLMeta::blitSource(p->frozenScene);
FBO::clear();
p->metaBlitBufferFlippedScaled();
GLMeta::blitEnd();
p->swapGLBuffer();
} else {
update();
}
}
}
Bitmap *Graphics::snapToBitmap() {
Bitmap *bitmap = new Bitmap(width(), height());
p->compositeToBuffer(bitmap->getGLTypes());
/* Taint entire bitmap */
bitmap->taintArea(IntRect(0, 0, width(), height()));
return bitmap;
}
int Graphics::width() const { return p->scRes.x; }
int Graphics::height() const { return p->scRes.y; }
void Graphics::resizeScreen(int width, int height) {
p->threadData->rqWindowAdjust.wait();
p->checkResize(true);
Vec2i size(width, height);
if (p->scRes == size)
return;
p->scRes = size;
p->screen.setResolution(width, height);
if (p->integerScaleActive)
p->rebuildIntegerScaleBuffer();
TEXFBO::allocEmpty(p->frozenScene, width, height);
FloatRect screenRect(0, 0, width, height);
p->screenQuad.setTexPosRect(screenRect, screenRect);
glState.scissorBox.set(IntRect(0, 0, p->scRes.x, p->scRes.y));
p->threadData->rqWindowAdjust.set();
shState->eThread().requestWindowResize(width, height);
}
void Graphics::resizeWindow(int width, int height, bool center) {
p->threadData->rqWindowAdjust.wait();
p->checkResize();
if (width == p->winSize.x / p->backingScaleFactor &&
height == p->winSize.y / p->backingScaleFactor)
return;
p->threadData->rqWindowAdjust.set();
shState->eThread().requestWindowResize(width, height);
if (center)
this->center();
}
bool Graphics::updateMovieInput(Movie *movie) {
return p->threadData->rqTerm || p->threadData->rqReset;
}
void Graphics::playMovie(const char *filename, int volume, bool skippable) {
Movie *movie = new Movie(volume, skippable);
MovieOpenHandler handler(movie->srcOps);
shState->fileSystem().openRead(handler, filename);
if (movie->preparePlayback()) {
int limiterDisabled = p->fpsLimiter.disabled;
p->fpsLimiter.disabled = false;
int oldFPS = getFrameRate();
setFrameRate(movie->video->fps);
bool oldframeskip = p->useFrameSkip;
p->useFrameSkip = false;
update();
Sprite movieSprite;
// Currently this stretches to fit the screen. VX Ace behavior is to center it and let the edges run off
movieSprite.setBitmap(movie->videoBitmap);
double ratio = std::min((double)width() / movie->video->width, (double)height() / movie->video->height);
movieSprite.setZoomX(ratio);
movieSprite.setZoomY(ratio);
movieSprite.setX((width() / 2) - (movie->video->width * ratio / 2));
movieSprite.setY((height() / 2) - (movie->video->height * ratio / 2));
Sprite letterboxSprite;
Bitmap letterbox(width(), height());
letterbox.fillRect(0, 0, width(), height(), Vec4(0,0,0,255));
letterboxSprite.setBitmap(&letterbox);
letterboxSprite.setZ(4999);
movieSprite.setZ(5001);
movie->play();
p->fpsLimiter.disabled = limiterDisabled;
setFrameRate(oldFPS);
p->useFrameSkip = oldframeskip;
}
delete movie;
}
void Graphics::screenshot(const char *filename) {
p->threadData->rqWindowAdjust.wait();
Bitmap *ss = snapToBitmap();
ss->saveToFile(filename);
ss->dispose();
delete ss;
}
DEF_ATTR_RD_SIMPLE(Graphics, Brightness, int, p->brightness)
void Graphics::setBrightness(int value) {
value = clamp(value, 0, 255);
if (p->brightness == value)
return;
p->brightness = value;
p->screen.setBrightness(value / 255.0);
}
void Graphics::reset() {
/* Dispose all live Disposables */
IntruListLink<Disposable> *iter;
for (iter = p->dispList.begin(); iter != p->dispList.end();
iter = iter->next) {
iter->data->dispose();
}
p->dispList.clear();
/* Reset attributes (frame count not included) */
p->fpsLimiter.resetFrameAdjust();
p->frozen = false;
p->screen.getPP().clearBuffers();
setFrameRate(DEF_FRAMERATE);
setBrightness(255);
}
void Graphics::center() {
if (getFullscreen())
return;
p->threadData->rqWindowAdjust.reset();
p->threadData->ethread->requestWindowCenter();
}
bool Graphics::getFullscreen() const {
return p->threadData->ethread->getFullscreen();
}
void Graphics::setFullscreen(bool value) {
p->threadData->ethread->requestFullscreenMode(value);
}
bool Graphics::getShowCursor() const {
return p->threadData->ethread->getShowCursor();
}
void Graphics::setShowCursor(bool value) {
p->threadData->ethread->requestShowCursor(value);
}
bool Graphics::getFixedAspectRatio() const
{
// It's a bit hacky to expose config values as a Graphics
// attribute, but there's really no point in state duplication
return shState->config().fixedAspectRatio;
}
void Graphics::setFixedAspectRatio(bool value)
{
shState->config().fixedAspectRatio = value;
p->recalculateScreenSize(p->threadData);
p->findHighestIntegerScale();
p->recalculateScreenSize(p->threadData->config.fixedAspectRatio);
p->updateScreenResoRatio(p->threadData);
}
bool Graphics::getSmoothScaling() const
{
// Same deal as with fixed aspect ratio
return shState->config().smoothScaling;
}
void Graphics::setSmoothScaling(bool value)
{
shState->config().smoothScaling = value;
}
bool Graphics::getIntegerScaling() const
{
return p->integerScaleActive;
}
void Graphics::setIntegerScaling(bool value)
{
p->integerScaleActive = value;
p->findHighestIntegerScale();
p->rebuildIntegerScaleBuffer();
p->recalculateScreenSize(p->threadData->config.fixedAspectRatio);
p->updateScreenResoRatio(p->threadData);
}
bool Graphics::getLastMileScaling() const
{
return p->integerLastMileScaling;
}
void Graphics::setLastMileScaling(bool value)
{
p->integerLastMileScaling = value;
p->recalculateScreenSize(p->threadData->config.fixedAspectRatio);
p->updateScreenResoRatio(p->threadData);
}
bool Graphics::getThreadsafe() const
{
return p->multithreadedMode;
}
void Graphics::setThreadsafe(bool value)
{
p->multithreadedMode = value;
}
double Graphics::getScale() const {
p->checkResize();
return (double)(p->winSize.y / p->backingScaleFactor) / p->scRes.y;
}
void Graphics::setScale(double factor) {
p->threadData->rqWindowAdjust.reset();
factor = clamp(factor, 0.5, 4.0);
if (factor == getScale())
return;
int widthpx = p->scRes.x * factor;
int heightpx = p->scRes.y * factor;
shState->eThread().requestWindowResize(widthpx, heightpx);
}
bool Graphics::getFrameskip() const { return p->useFrameSkip; }
void Graphics::setFrameskip(bool value) { p->useFrameSkip = value; }
Scene *Graphics::getScreen() const { return &p->screen; }
void Graphics::repaintWait(const AtomicFlag &exitCond, bool checkReset) {
if (exitCond)
return;
/* Repaint the screen with the last good frame we drew */
TEXFBO &lastFrame = p->screen.getPP().frontBuffer();
GLMeta::blitBeginScreen(p->winSize);
GLMeta::blitSource(lastFrame);
while (!exitCond) {
shState->checkShutdown();
if (checkReset)
shState->checkReset();
FBO::clear();
p->metaBlitBufferFlippedScaled();
SDL_GL_SwapWindow(p->threadData->window);
p->fpsLimiter.delay();
p->threadData->ethread->notifyFrame();
}
GLMeta::blitEnd();
}
void Graphics::lock(bool force) {
p->setLock(force);
}
void Graphics::unlock(bool force) {
p->releaseLock(force);
}
void Graphics::addDisposable(Disposable *d) { p->dispList.append(d->link); }
void Graphics::remDisposable(Disposable *d) { p->dispList.remove(d->link); }
#undef GRAPHICS_THREAD_LOCK
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