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mythrenderopengl.cpp
1593 lines (1401 loc) · 53.5 KB
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mythrenderopengl.cpp
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// Std
#include <algorithm>
#include <cmath>
// Qt
#include <QLibrary>
#include <QPainter>
#include <QWindow>
#include <QWidget>
#include <QGuiApplication>
// MythTV
#include "libmythbase/mythcorecontext.h"
#include "libmythbase/mythlogging.h"
#include "mythmainwindow.h"
#include "mythrenderopengl.h"
#include "mythrenderopenglshaders.h"
#include "mythuitype.h"
#ifdef USING_X11
#include "platforms/mythxdisplay.h"
#endif
#define LOC QString("OpenGL: ")
#ifdef Q_OS_ANDROID
#include <android/log.h>
#include <QWindow>
#endif
static constexpr GLuint VERTEX_INDEX { 0 };
static constexpr GLuint COLOR_INDEX { 1 };
static constexpr GLuint TEXTURE_INDEX { 2 };
static constexpr GLint VERTEX_SIZE { 2 };
static constexpr GLint TEXTURE_SIZE { 2 };
static constexpr GLuint kVertexOffset { 0 };
static constexpr GLuint kTextureOffset { 8 * sizeof(GLfloat) };
static constexpr int MAX_VERTEX_CACHE { 500 };
MythGLTexture::MythGLTexture(QOpenGLTexture *Texture)
: m_texture(Texture)
{
}
MythGLTexture::MythGLTexture(GLuint Texture)
: m_textureId(Texture)
{
}
OpenGLLocker::OpenGLLocker(MythRenderOpenGL *Render)
: m_render(Render)
{
if (m_render)
m_render->makeCurrent();
}
OpenGLLocker::~OpenGLLocker()
{
if (m_render)
m_render->doneCurrent();
}
MythRenderOpenGL* MythRenderOpenGL::GetOpenGLRender(void)
{
// Don't try and create the window
if (!HasMythMainWindow())
return nullptr;
MythMainWindow* window = MythMainWindow::getMainWindow();
if (!window)
return nullptr;
auto* result = dynamic_cast<MythRenderOpenGL*>(window->GetRenderDevice());
if (result)
return result;
return nullptr;
}
MythRenderOpenGL* MythRenderOpenGL::Create(QWidget *Widget)
{
if (!Widget)
return nullptr;
#ifdef USING_X11
if (MythXDisplay::DisplayIsRemote())
{
LOG(VB_GENERAL, LOG_WARNING, LOC + "OpenGL is disabled for Remote X Session");
return nullptr;
}
#endif
// N.B the core profiles below are designed to target compute shader availability
bool opengles = !qEnvironmentVariableIsEmpty("MYTHTV_OPENGL_ES");
bool core = !qEnvironmentVariableIsEmpty("MYTHTV_OPENGL_CORE");
QSurfaceFormat format = QSurfaceFormat::defaultFormat();
if (core)
{
format.setProfile(QSurfaceFormat::CoreProfile);
format.setMajorVersion(4);
format.setMinorVersion(3);
}
if (opengles)
{
if (core)
{
format.setProfile(QSurfaceFormat::CoreProfile);
format.setMajorVersion(3);
format.setMinorVersion(1);
}
format.setRenderableType(QSurfaceFormat::OpenGLES);
}
if (VERBOSE_LEVEL_CHECK(VB_GPU, LOG_INFO))
format.setOption(QSurfaceFormat::DebugContext);
return new MythRenderOpenGL(format, Widget);
}
MythRenderOpenGL::MythRenderOpenGL(const QSurfaceFormat& Format, QWidget *Widget)
: MythEGL(this),
MythRender(kRenderOpenGL),
m_fullRange(gCoreContext->GetBoolSetting("GUIRGBLevels", true))
{
m_projection.fill(0);
m_parameters.fill(0);
m_transforms.push(QMatrix4x4());
setFormat(Format);
connect(this, &QOpenGLContext::aboutToBeDestroyed, this, &MythRenderOpenGL::contextToBeDestroyed);
SetWidget(Widget);
}
MythRenderOpenGL::~MythRenderOpenGL()
{
LOG(VB_GENERAL, LOG_INFO, LOC + "MythRenderOpenGL closing");
if (!isValid())
return;
disconnect(this, &QOpenGLContext::aboutToBeDestroyed, this, &MythRenderOpenGL::contextToBeDestroyed);
if (m_ready)
MythRenderOpenGL::ReleaseResources();
}
void MythRenderOpenGL::MessageLogged(const QOpenGLDebugMessage &Message)
{
// filter unwanted messages
if ((m_openGLDebuggerFilter & Message.type()) != 0U)
return;
QString source("Unknown");
QString type("Unknown");
switch (Message.source())
{
case QOpenGLDebugMessage::ApplicationSource: return; // filter out our own messages
case QOpenGLDebugMessage::APISource: source = "API"; break;
case QOpenGLDebugMessage::WindowSystemSource: source = "WinSys"; break;
case QOpenGLDebugMessage::ShaderCompilerSource: source = "ShaderComp"; break;
case QOpenGLDebugMessage::ThirdPartySource: source = "3rdParty"; break;
case QOpenGLDebugMessage::OtherSource: source = "Other"; break;
default: break;
}
// N.B. each break is on a separate line to allow setting individual break points
// when using synchronous logging
switch (Message.type())
{
case QOpenGLDebugMessage::ErrorType:
type = "Error"; break;
case QOpenGLDebugMessage::DeprecatedBehaviorType:
type = "Deprecated"; break;
case QOpenGLDebugMessage::UndefinedBehaviorType:
type = "Undef behaviour"; break;
case QOpenGLDebugMessage::PortabilityType:
type = "Portability"; break;
case QOpenGLDebugMessage::PerformanceType:
type = "Performance"; break;
case QOpenGLDebugMessage::OtherType:
type = "Other"; break;
case QOpenGLDebugMessage::MarkerType:
type = "Marker"; break;
case QOpenGLDebugMessage::GroupPushType:
type = "GroupPush"; break;
case QOpenGLDebugMessage::GroupPopType:
type = "GroupPop"; break;
default: break;
}
LOG(VB_GPU, LOG_INFO, LOC + QString("Src: %1 Type: %2 Msg: %3")
.arg(source, type, Message.message()));
}
void MythRenderOpenGL:: logDebugMarker(const QString &Message)
{
if (m_openglDebugger)
{
QOpenGLDebugMessage message = QOpenGLDebugMessage::createApplicationMessage(
Message, 0, QOpenGLDebugMessage::NotificationSeverity, QOpenGLDebugMessage::MarkerType);
m_openglDebugger->logMessage(message);
}
}
// Can't be static because its connected to a signal and passed "this".
// NOLINTNEXTLINE(readability-convert-member-functions-to-static)
void MythRenderOpenGL::contextToBeDestroyed(void)
{
LOG(VB_GENERAL, LOG_WARNING, LOC + "Context about to be destroyed");
}
bool MythRenderOpenGL::Init(void)
{
if (!isValid())
{
LOG(VB_GENERAL, LOG_ERR, LOC + "MythRenderOpenGL is not a valid OpenGL rendering context");
return false;
}
OpenGLLocker locker(this);
initializeOpenGLFunctions();
m_ready = true;
m_features = openGLFeatures();
// don't enable this by default - it can generate a lot of detail
if (VERBOSE_LEVEL_CHECK(VB_GPU, LOG_INFO))
{
m_openglDebugger = new QOpenGLDebugLogger();
if (m_openglDebugger->initialize())
{
connect(m_openglDebugger, &QOpenGLDebugLogger::messageLogged, this, &MythRenderOpenGL::MessageLogged);
QOpenGLDebugLogger::LoggingMode mode = QOpenGLDebugLogger::AsynchronousLogging;
// this will impact performance but can be very useful
if (!qEnvironmentVariableIsEmpty("MYTHTV_OPENGL_SYNCHRONOUS"))
mode = QOpenGLDebugLogger::SynchronousLogging;
m_openglDebugger->startLogging(mode);
if (mode == QOpenGLDebugLogger::AsynchronousLogging)
LOG(VB_GENERAL, LOG_INFO, LOC + "GPU debug logging started (async)");
else
LOG(VB_GENERAL, LOG_INFO, LOC + "Started synchronous GPU debug logging (will hurt performance)");
// filter messages. Some drivers can be extremely verbose for certain issues.
QStringList debug;
QString filter = qgetenv("MYTHTV_OPENGL_LOGFILTER");
if (filter.contains("other", Qt::CaseInsensitive))
{
m_openGLDebuggerFilter |= QOpenGLDebugMessage::OtherType;
debug << "Other";
}
if (filter.contains("error", Qt::CaseInsensitive))
{
m_openGLDebuggerFilter |= QOpenGLDebugMessage::ErrorType;
debug << "Error";
}
if (filter.contains("deprecated", Qt::CaseInsensitive))
{
m_openGLDebuggerFilter |= QOpenGLDebugMessage::DeprecatedBehaviorType;
debug << "Deprecated";
}
if (filter.contains("undefined", Qt::CaseInsensitive))
{
m_openGLDebuggerFilter |= QOpenGLDebugMessage::UndefinedBehaviorType;
debug << "Undefined";
}
if (filter.contains("portability", Qt::CaseInsensitive))
{
m_openGLDebuggerFilter |= QOpenGLDebugMessage::PortabilityType;
debug << "Portability";
}
if (filter.contains("performance", Qt::CaseInsensitive))
{
m_openGLDebuggerFilter |= QOpenGLDebugMessage::PerformanceType;
debug << "Performance";
}
if (filter.contains("grouppush", Qt::CaseInsensitive))
{
m_openGLDebuggerFilter |= QOpenGLDebugMessage::GroupPushType;
debug << "GroupPush";
}
if (filter.contains("grouppop", Qt::CaseInsensitive))
{
m_openGLDebuggerFilter |= QOpenGLDebugMessage::GroupPopType;
debug << "GroupPop";
}
if (!debug.isEmpty())
LOG(VB_GENERAL, LOG_INFO, LOC + QString("Filtering out GPU messages for: %1")
.arg(debug.join(", ")));
}
else
{
LOG(VB_GENERAL, LOG_WARNING, LOC + "Failed to initialise OpenGL logging");
delete m_openglDebugger;
m_openglDebugger = nullptr;
}
}
if (VERBOSE_LEVEL_CHECK(VB_GPU, LOG_INFO))
logDebugMarker("RENDER_INIT_START");
Init2DState();
// basic features
GLint maxtexsz = 0;
GLint maxunits = 0;
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxtexsz);
glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxunits);
m_maxTextureUnits = maxunits;
m_maxTextureSize = (maxtexsz) ? maxtexsz : 512;
QSurfaceFormat fmt = format();
// Pixel buffer objects
bool buffer_procs = reinterpret_cast<MYTH_GLMAPBUFFERPROC>(GetProcAddress("glMapBuffer")) &&
reinterpret_cast<MYTH_GLUNMAPBUFFERPROC>(GetProcAddress("glUnmapBuffer"));
// Buffers are available by default (GL and GLES).
// Buffer mapping is available by extension
if ((isOpenGLES() && hasExtension("GL_OES_mapbuffer") && buffer_procs) ||
(hasExtension("GL_ARB_vertex_buffer_object") && buffer_procs))
m_extraFeatures |= kGLBufferMap;
// Rectangular textures
if (!isOpenGLES() && (hasExtension("GL_NV_texture_rectangle") ||
hasExtension("GL_ARB_texture_rectangle") ||
hasExtension("GL_EXT_texture_rectangle")))
m_extraFeatures |= kGLExtRects;
// GL_RED etc texure formats. Not available on GLES2.0 or GL < 2
if ((isOpenGLES() && format().majorVersion() < 3) ||
(!isOpenGLES() && format().majorVersion() < 2))
m_extraFeatures |= kGLLegacyTextures;
// GL_UNPACK_ROW_LENGTH - for uploading video textures
// Note: Should also be available on GL1.4 per specification
if (!isOpenGLES() || (isOpenGLES() && ((fmt.majorVersion() >= 3) || hasExtension("GL_EXT_unpack_subimage"))))
m_extraFeatures |= kGLExtSubimage;
// check for core profile N.B. not OpenGL ES
if (fmt.profile() == QSurfaceFormat::OpenGLContextProfile::CoreProfile)
{
// if we have a core profile then we need a VAO bound - this is just a
// workaround for the time being
extraFunctions()->glGenVertexArrays(1, &m_vao);
extraFunctions()->glBindVertexArray(m_vao);
}
// For (embedded) GPUs that use tile based rendering, it is faster to use
// glClear e.g. on the Pi3 it improves video frame rate significantly. Using
// glClear tells the GPU it doesn't have to retrieve the old framebuffer and will
// also clear existing draw calls.
// For now this just includes Broadcom VideoCoreIV.
// Other Tile Based Deferred Rendering GPUS - PowerVR5/6/7, Apple (PowerVR as well?)
// Other Tile Based Immediate Mode Rendering GPUS - ARM Mali, Qualcomm Adreno
static const std::array<const QByteArray,3> kTiled { "videocore", "vc4", "v3d" };
auto renderer = QByteArray(reinterpret_cast<const char*>(glGetString(GL_RENDERER))).toLower();
for (const auto & name : kTiled)
{
if (renderer.contains(name))
{
m_extraFeatures |= kGLTiled;
break;
}
}
// Check for memory extensions
if (hasExtension("GL_NVX_gpu_memory_info"))
m_extraFeatures |= kGLNVMemory;
// Check 16 bit FBOs
Check16BitFBO();
// Check for compute and geometry shaders
if (QOpenGLShader::hasOpenGLShaders(QOpenGLShader::Compute))
m_extraFeatures |= kGLComputeShaders;
if (QOpenGLShader::hasOpenGLShaders(QOpenGLShader::Geometry))
m_extraFeatures |= kGLGeometryShaders;
DebugFeatures();
m_extraFeaturesUsed = m_extraFeatures;
if (!CreateDefaultShaders())
{
LOG(VB_GENERAL, LOG_ERR, LOC + "Failed to create default shaders");
return false;
}
LOG(VB_GENERAL, LOG_INFO, LOC + "Initialised MythRenderOpenGL");
LOG(VB_GENERAL, LOG_INFO, LOC + QString("Using %1 range output").arg(m_fullRange ? "full" : "limited"));
if (VERBOSE_LEVEL_CHECK(VB_GPU, LOG_INFO))
logDebugMarker("RENDER_INIT_END");
return true;
}
static constexpr QLatin1String GLYesNo (bool v)
{
return v ? QLatin1String("Yes") : QLatin1String("No");
}
void MythRenderOpenGL::DebugFeatures(void)
{
QSurfaceFormat fmt = format();
QString qtglversion = QString("OpenGL%1 %2.%3")
.arg(fmt.renderableType() == QSurfaceFormat::OpenGLES ? "ES" : "")
.arg(fmt.majorVersion()).arg(fmt.minorVersion());
QString qtglsurface = QString("RGBA: %1:%2:%3:%4 Depth: %5 Stencil: %6")
.arg(fmt.redBufferSize()).arg(fmt.greenBufferSize())
.arg(fmt.blueBufferSize()).arg(fmt.alphaBufferSize())
.arg(fmt.depthBufferSize()).arg(fmt.stencilBufferSize());
QStringList shaders {"None"};
if (m_features & Shaders)
{
shaders = QStringList { "Vertex", "Fragment" };
if (m_extraFeatures & kGLGeometryShaders)
shaders << "Geometry";
if (m_extraFeatures & kGLComputeShaders)
shaders << "Compute";
}
const QString module = QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGL ? "OpenGL (not ES)" : "OpenGL ES";
LOG(VB_GENERAL, LOG_INFO, LOC + QString("OpenGL vendor : %1").arg(reinterpret_cast<const char*>(glGetString(GL_VENDOR))));
LOG(VB_GENERAL, LOG_INFO, LOC + QString("OpenGL renderer : %1").arg(reinterpret_cast<const char*>(glGetString(GL_RENDERER))));
LOG(VB_GENERAL, LOG_INFO, LOC + QString("OpenGL version : %1").arg(reinterpret_cast<const char*>(glGetString(GL_VERSION))));
LOG(VB_GENERAL, LOG_INFO, LOC + QString("Qt platform : %1").arg(QGuiApplication::platformName()));
#ifdef USING_EGL
bool eglfuncs = IsEGL();
LOG(VB_GENERAL, LOG_INFO, LOC + QString("EGL display : %1").arg(GLYesNo(GetEGLDisplay() != nullptr)));
LOG(VB_PLAYBACK, LOG_INFO, LOC + QString("EGL images : %1").arg(GLYesNo(eglfuncs)));
#endif
LOG(VB_GENERAL, LOG_INFO, LOC + QString("Qt OpenGL module : %1").arg(module));
LOG(VB_GENERAL, LOG_INFO, LOC + QString("Qt OpenGL format : %1").arg(qtglversion));
LOG(VB_GENERAL, LOG_INFO, LOC + QString("Qt OpenGL surface : %1").arg(qtglsurface));
LOG(VB_GENERAL, LOG_INFO, LOC + QString("Max texture size : %1").arg(m_maxTextureSize));
LOG(VB_GENERAL, LOG_INFO, LOC + QString("Shaders : %1").arg(shaders.join(",")));
LOG(VB_GENERAL, LOG_INFO, LOC + QString("16bit framebuffers : %1").arg(GLYesNo(m_extraFeatures & kGL16BitFBO)));
LOG(VB_PLAYBACK, LOG_INFO, LOC + QString("Unpack Subimage : %1").arg(GLYesNo(m_extraFeatures & kGLExtSubimage)));
LOG(VB_PLAYBACK, LOG_INFO, LOC + QString("Buffer mapping : %1").arg(GLYesNo(m_extraFeatures & kGLBufferMap)));
LOG(VB_PLAYBACK, LOG_INFO, LOC + QString("Rectangular textures : %1").arg(GLYesNo(m_extraFeatures & kGLExtRects)));
LOG(VB_PLAYBACK, LOG_INFO, LOC + QString("NPOT textures : %1").arg(GLYesNo(m_features & NPOTTextures)));
LOG(VB_PLAYBACK, LOG_INFO, LOC + QString("Max texture units : %1").arg(m_maxTextureUnits));
LOG(VB_PLAYBACK, LOG_INFO, LOC + QString("GL_RED/GL_R8 : %1").arg(GLYesNo(!(m_extraFeatures & kGLLegacyTextures))));
// warnings
if (m_maxTextureUnits < 3)
LOG(VB_GENERAL, LOG_WARNING, LOC + "Warning: Insufficient texture units for some features.");
}
int MythRenderOpenGL::GetMaxTextureSize(void) const
{
return m_maxTextureSize;
}
int MythRenderOpenGL::GetMaxTextureUnits(void) const
{
return m_maxTextureUnits;
}
int MythRenderOpenGL::GetExtraFeatures(void) const
{
return m_extraFeaturesUsed;
}
QOpenGLFunctions::OpenGLFeatures MythRenderOpenGL::GetFeatures(void) const
{
return m_features;
}
bool MythRenderOpenGL::IsRecommendedRenderer(void)
{
if (!IsReady())
return false;
bool recommended = true;
OpenGLLocker locker(this);
QString renderer = reinterpret_cast<const char*>(glGetString(GL_RENDERER));
if (!(openGLFeatures() & Shaders))
{
LOG(VB_GENERAL, LOG_WARNING, LOC + "OpenGL has no shader support");
recommended = false;
}
else if (!(openGLFeatures() & Framebuffers))
{
LOG(VB_GENERAL, LOG_WARNING, LOC + "OpenGL has no framebuffer support");
recommended = false;
}
else if (renderer.contains("Software Rasterizer", Qt::CaseInsensitive))
{
LOG(VB_GENERAL, LOG_WARNING, LOC + "OpenGL is using software rasterizer.");
recommended = false;
}
else if (renderer.contains("softpipe", Qt::CaseInsensitive))
{
LOG(VB_GENERAL, LOG_WARNING, LOC + "OpenGL seems to be using software "
"fallback. Please check your OpenGL driver installation, "
"configuration, and device permissions.");
recommended = false;
}
if (!recommended)
{
LOG(VB_GENERAL, LOG_INFO, LOC +
"OpenGL not recommended with this system's hardware/drivers.");
}
return recommended;
}
bool MythRenderOpenGL::IsReady(void)
{
return isValid() && m_ready;
}
void MythRenderOpenGL::swapBuffers()
{
QOpenGLContext::swapBuffers(m_window);
m_swapCount++;
}
uint64_t MythRenderOpenGL::GetSwapCount()
{
auto result = m_swapCount;
m_swapCount = 0;
return result;
}
void MythRenderOpenGL::SetWidget(QWidget *Widget)
{
if (!Widget)
{
LOG(VB_GENERAL, LOG_CRIT, LOC + "No widget!");
return;
}
// We must have a window/surface.
m_window = Widget->windowHandle();
QWidget* native = Widget->nativeParentWidget();
if (!m_window && native)
m_window = native->windowHandle();
if (!m_window)
{
LOG(VB_GENERAL, LOG_CRIT, LOC + "No window surface!");
return;
}
#ifdef Q_OS_ANDROID
// Ensure surface type is always OpenGL
m_window->setSurfaceType(QWindow::OpenGLSurface);
if (native && native->windowHandle())
native->windowHandle()->setSurfaceType(QWindow::OpenGLSurface);
#endif
#ifdef USING_QTWEBENGINE
auto * globalcontext = QOpenGLContext::globalShareContext();
if (globalcontext)
{
LOG(VB_GENERAL, LOG_INFO, LOC + "Using global shared OpenGL context");
setShareContext(globalcontext);
}
#endif
if (!create())
LOG(VB_GENERAL, LOG_CRIT, LOC + "Failed to create OpenGLContext!");
else
Widget->setAttribute(Qt::WA_PaintOnScreen);
}
void MythRenderOpenGL::makeCurrent()
{
m_lock.lock();
if (!m_lockLevel++)
if (!QOpenGLContext::makeCurrent(m_window))
LOG(VB_GENERAL, LOG_ERR, LOC + "makeCurrent failed");
}
void MythRenderOpenGL::doneCurrent()
{
// TODO add back QOpenGLContext::doneCurrent call
// once calls are better pipelined
m_lockLevel--;
if (m_lockLevel < 0)
LOG(VB_GENERAL, LOG_ERR, LOC + "Mis-matched calls to makeCurrent()");
m_lock.unlock();
}
void MythRenderOpenGL::SetViewPort(QRect Rect, bool ViewportOnly)
{
if (Rect == m_viewport)
return;
makeCurrent();
m_viewport = Rect;
glViewport(m_viewport.left(), m_viewport.top(),
m_viewport.width(), m_viewport.height());
if (!ViewportOnly)
SetMatrixView();
doneCurrent();
}
void MythRenderOpenGL::Flush(void)
{
if (!m_flushEnabled)
return;
makeCurrent();
glFlush();
doneCurrent();
}
void MythRenderOpenGL::SetBlend(bool Enable)
{
makeCurrent();
if (Enable && !m_blend)
glEnable(GL_BLEND);
else if (!Enable && m_blend)
glDisable(GL_BLEND);
m_blend = Enable;
doneCurrent();
}
void MythRenderOpenGL::SetBackground(uint8_t Red, uint8_t Green, uint8_t Blue, uint8_t Alpha)
{
int32_t tmp = (Red << 24) + (Green << 16) + (Blue << 8) + Alpha;
if (tmp == m_background)
return;
m_background = tmp;
makeCurrent();
glClearColor(Red / 255.0F, Green / 255.0F, Blue / 255.0F, Alpha / 255.0F);
doneCurrent();
}
MythGLTexture* MythRenderOpenGL::CreateTextureFromQImage(QImage *Image)
{
if (!Image)
return nullptr;
OpenGLLocker locker(this);
auto *texture = new QOpenGLTexture(*Image, QOpenGLTexture::DontGenerateMipMaps);
if (!texture->textureId())
{
LOG(VB_GENERAL, LOG_INFO, LOC + "Failed to create texure");
delete texture;
return nullptr;
}
texture->setMinMagFilters(QOpenGLTexture::Linear, QOpenGLTexture::Linear);
texture->setWrapMode(QOpenGLTexture::ClampToEdge);
auto *result = new MythGLTexture(texture);
result->m_texture = texture;
result->m_vbo = CreateVBO(kVertexSize);
result->m_totalSize = GetTextureSize(Image->size(), result->m_target != QOpenGLTexture::TargetRectangle);
// N.B. Format and type per qopengltexure.cpp
result->m_pixelFormat = QOpenGLTexture::RGBA;
result->m_pixelType = QOpenGLTexture::UInt8;
result->m_bufferSize = GetBufferSize(result->m_totalSize, QOpenGLTexture::RGBA, QOpenGLTexture::UInt8);
result->m_size = Image->size();
result->m_crop = true;
return result;
}
QSize MythRenderOpenGL::GetTextureSize(const QSize Size, bool Normalised)
{
if (((m_features & NPOTTextures) != 0U) || !Normalised)
return Size;
int w = 64;
int h = 64;
while (w < Size.width())
w *= 2;
while (h < Size.height())
h *= 2;
return {w, h};
}
int MythRenderOpenGL::GetTextureDataSize(MythGLTexture *Texture)
{
if (Texture)
return Texture->m_bufferSize;
return 0;
}
void MythRenderOpenGL::SetTextureFilters(MythGLTexture *Texture, QOpenGLTexture::Filter Filter, QOpenGLTexture::WrapMode Wrap)
{
if (!Texture || !(Texture->m_texture || Texture->m_textureId))
return;
makeCurrent();
if (Texture->m_texture)
{
Texture->m_texture->bind();
Texture->m_texture->setWrapMode(Wrap);
Texture->m_texture->setMinMagFilters(Filter, Filter);
}
else
{
glBindTexture(Texture->m_target, Texture->m_textureId);
glTexParameteri(Texture->m_target, GL_TEXTURE_MIN_FILTER, Filter);
glTexParameteri(Texture->m_target, GL_TEXTURE_MAG_FILTER, Filter);
glTexParameteri(Texture->m_target, GL_TEXTURE_WRAP_S, Wrap);
glTexParameteri(Texture->m_target, GL_TEXTURE_WRAP_T, Wrap);
}
doneCurrent();
}
void MythRenderOpenGL::ActiveTexture(GLuint ActiveTex)
{
if (!(m_features & Multitexture))
return;
makeCurrent();
if (m_activeTexture != ActiveTex)
{
glActiveTexture(ActiveTex);
m_activeTexture = ActiveTex;
}
doneCurrent();
}
void MythRenderOpenGL::DeleteTexture(MythGLTexture *Texture)
{
if (!Texture)
return;
makeCurrent();
// N.B. Don't delete m_textureId - it is owned externally
delete Texture->m_texture;
delete [] Texture->m_data;
delete Texture->m_vbo;
delete Texture;
Flush();
doneCurrent();
}
QOpenGLFramebufferObject* MythRenderOpenGL::CreateFramebuffer(QSize &Size, bool SixteenBit)
{
if (!(m_features & Framebuffers))
return nullptr;
OpenGLLocker locker(this);
QOpenGLFramebufferObject *framebuffer = nullptr;
if (SixteenBit)
{
framebuffer = new QOpenGLFramebufferObject(Size, QOpenGLFramebufferObject::NoAttachment,
GL_TEXTURE_2D, QOpenGLTexture::RGBA16_UNorm);
}
else
{
framebuffer = new QOpenGLFramebufferObject(Size);
}
if (framebuffer->isValid())
{
if (framebuffer->isBound())
{
m_activeFramebuffer = framebuffer->handle();
BindFramebuffer(nullptr);
}
Flush();
return framebuffer;
}
LOG(VB_GENERAL, LOG_ERR, "Failed to create framebuffer object");
delete framebuffer;
return nullptr;
}
/// This is no longer used but will probably be needed for future UI enhancements.
MythGLTexture* MythRenderOpenGL::CreateFramebufferTexture(QOpenGLFramebufferObject *Framebuffer)
{
if (!Framebuffer)
return nullptr;
auto *texture = new MythGLTexture(Framebuffer->texture());
texture->m_size = texture->m_totalSize = Framebuffer->size();
texture->m_vbo = CreateVBO(kVertexSize);
texture->m_flip = false;
return texture;
}
void MythRenderOpenGL::DeleteFramebuffer(QOpenGLFramebufferObject *Framebuffer)
{
if (Framebuffer)
{
makeCurrent();
delete Framebuffer;
doneCurrent();
}
}
void MythRenderOpenGL::BindFramebuffer(QOpenGLFramebufferObject *Framebuffer)
{
if ((Framebuffer && Framebuffer->handle() == m_activeFramebuffer) ||
(!Framebuffer && defaultFramebufferObject() == m_activeFramebuffer))
return;
makeCurrent();
if (Framebuffer == nullptr)
{
QOpenGLFramebufferObject::bindDefault();
m_activeFramebuffer = defaultFramebufferObject();
}
else
{
Framebuffer->bind();
m_activeFramebuffer = Framebuffer->handle();
}
doneCurrent();
}
void MythRenderOpenGL::ClearFramebuffer(void)
{
makeCurrent();
glClear(GL_COLOR_BUFFER_BIT);
doneCurrent();
}
void MythRenderOpenGL::DrawProcedural(QRect Area, int Alpha, QOpenGLFramebufferObject* Target,
QOpenGLShaderProgram *Program, float TimeVal)
{
if (!Program)
return;
makeCurrent();
BindFramebuffer(Target);
glEnableVertexAttribArray(VERTEX_INDEX);
GetCachedVBO(GL_TRIANGLE_STRIP, Area);
glVertexAttribPointerI(VERTEX_INDEX, VERTEX_SIZE, GL_FLOAT, GL_FALSE, VERTEX_SIZE * sizeof(GLfloat), kVertexOffset);
SetShaderProjection(Program);
Program->setUniformValue("u_time", TimeVal);
Program->setUniformValue("u_alpha", static_cast<float>(Alpha / 255.0F));
Program->setUniformValue("u_res", QVector2D(m_window->width(), m_window->height()));
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
QOpenGLBuffer::release(QOpenGLBuffer::VertexBuffer);
glDisableVertexAttribArray(VERTEX_INDEX);
doneCurrent();
}
void MythRenderOpenGL::DrawBitmap(MythGLTexture *Texture, QOpenGLFramebufferObject *Target,
const QRect Source, const QRect Destination,
QOpenGLShaderProgram *Program, int Alpha, qreal Scale)
{
makeCurrent();
if (!Texture || !((Texture->m_texture || Texture->m_textureId) && Texture->m_vbo))
return;
if (Program == nullptr)
Program = m_defaultPrograms[kShaderDefault];
BindFramebuffer(Target);
SetShaderProjection(Program);
GLenum textarget = Texture->m_target;
Program->setUniformValue("s_texture0", 0);
ActiveTexture(GL_TEXTURE0);
if (Texture->m_texture)
Texture->m_texture->bind();
else
glBindTexture(textarget, Texture->m_textureId);
QOpenGLBuffer* buffer = Texture->m_vbo;
buffer->bind();
if (UpdateTextureVertices(Texture, Source, Destination, 0, Scale))
{
if (m_extraFeaturesUsed & kGLBufferMap)
{
void* target = buffer->map(QOpenGLBuffer::WriteOnly);
if (target)
{
std::copy(Texture->m_vertexData.cbegin(),
Texture->m_vertexData.cend(),
static_cast<GLfloat*>(target));
}
buffer->unmap();
}
else
{
buffer->write(0, Texture->m_vertexData.data(), kVertexSize);
}
}
glEnableVertexAttribArray(VERTEX_INDEX);
glEnableVertexAttribArray(TEXTURE_INDEX);
glVertexAttribPointerI(VERTEX_INDEX, VERTEX_SIZE, GL_FLOAT, GL_FALSE, VERTEX_SIZE * sizeof(GLfloat), kVertexOffset);
glVertexAttrib4f(COLOR_INDEX, 1.0F, 1.0F, 1.0F, Alpha / 255.0F);
glVertexAttribPointerI(TEXTURE_INDEX, TEXTURE_SIZE, GL_FLOAT, GL_FALSE, TEXTURE_SIZE * sizeof(GLfloat), kTextureOffset);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glDisableVertexAttribArray(TEXTURE_INDEX);
glDisableVertexAttribArray(VERTEX_INDEX);
QOpenGLBuffer::release(QOpenGLBuffer::VertexBuffer);
doneCurrent();
}
void MythRenderOpenGL::DrawBitmap(std::vector<MythGLTexture *> &Textures,
QOpenGLFramebufferObject *Target,
const QRect Source, const QRect Destination,
QOpenGLShaderProgram *Program,
int Rotation)
{
if (Textures.empty())
return;
makeCurrent();
BindFramebuffer(Target);
if (Program == nullptr)
Program = m_defaultPrograms[kShaderDefault];
MythGLTexture* first = Textures[0];
if (!first || !((first->m_texture || first->m_textureId) && first->m_vbo))
return;
SetShaderProjection(Program);
GLenum textarget = first->m_target;
for (uint i = 0; i < Textures.size(); i++)
{
QString uniform = QString("s_texture%1").arg(i);
Program->setUniformValue(qPrintable(uniform), i);
ActiveTexture(GL_TEXTURE0 + i);
if (Textures[i]->m_texture)
Textures[i]->m_texture->bind();
else
glBindTexture(textarget, Textures[i]->m_textureId);
}
QOpenGLBuffer* buffer = first->m_vbo;
buffer->bind();
if (UpdateTextureVertices(first, Source, Destination, Rotation))
{
if (m_extraFeaturesUsed & kGLBufferMap)
{
void* target = buffer->map(QOpenGLBuffer::WriteOnly);
if (target)
{
std::copy(first->m_vertexData.cbegin(),
first->m_vertexData.cend(),
static_cast<GLfloat*>(target));
}
buffer->unmap();
}
else
{
buffer->write(0, first->m_vertexData.data(), kVertexSize);
}
}
glEnableVertexAttribArray(VERTEX_INDEX);
glEnableVertexAttribArray(TEXTURE_INDEX);
glVertexAttribPointerI(VERTEX_INDEX, VERTEX_SIZE, GL_FLOAT, GL_FALSE, VERTEX_SIZE * sizeof(GLfloat), kVertexOffset);
glVertexAttrib4f(COLOR_INDEX, 1.0, 1.0, 1.0, 1.0);
glVertexAttribPointerI(TEXTURE_INDEX, TEXTURE_SIZE, GL_FLOAT, GL_FALSE, TEXTURE_SIZE * sizeof(GLfloat), kTextureOffset);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glDisableVertexAttribArray(TEXTURE_INDEX);
glDisableVertexAttribArray(VERTEX_INDEX);
QOpenGLBuffer::release(QOpenGLBuffer::VertexBuffer);
doneCurrent();
}
static const float kLimitedRangeOffset = (16.0F / 255.0F);
static const float kLimitedRangeScale = (219.0F / 255.0F);
/// \brief An optimised method to clear a QRect to the given color
void MythRenderOpenGL::ClearRect(QOpenGLFramebufferObject *Target, const QRect Area, int Color, int Alpha)
{
makeCurrent();
BindFramebuffer(Target);
glEnableVertexAttribArray(VERTEX_INDEX);
// Set the fill color
float color = m_fullRange ? Color / 255.0F : (Color * kLimitedRangeScale) + kLimitedRangeOffset;
glVertexAttrib4f(COLOR_INDEX, color, color, color, Alpha / 255.0F);
SetShaderProjection(m_defaultPrograms[kShaderSimple]);
GetCachedVBO(GL_TRIANGLE_STRIP, Area);
glVertexAttribPointerI(VERTEX_INDEX, VERTEX_SIZE, GL_FLOAT, GL_FALSE, VERTEX_SIZE * sizeof(GLfloat), kVertexOffset);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
QOpenGLBuffer::release(QOpenGLBuffer::VertexBuffer);
glDisableVertexAttribArray(VERTEX_INDEX);
doneCurrent();
}
void MythRenderOpenGL::DrawRect(QOpenGLFramebufferObject *Target,
const QRect Area, const QBrush &FillBrush,
const QPen &LinePen, int Alpha)
{
DrawRoundRect(Target, Area, 1, FillBrush, LinePen, Alpha);
}
void MythRenderOpenGL::DrawRoundRect(QOpenGLFramebufferObject *Target,
const QRect Area, int CornerRadius,
const QBrush &FillBrush,
const QPen &LinePen, int Alpha)
{
bool fill = FillBrush.style() != Qt::NoBrush;
bool edge = LinePen.style() != Qt::NoPen;
if (!(fill || edge))
return;
auto SetColor = [&](const QColor& Color)
{
if (m_fullRange)
{