Qt: Allow switching between GL and GL2 backends
Jeffrey Pfau jeffrey@endrift.com
Wed, 28 Oct 2015 23:22:10 -0700
3 files changed,
62 insertions(+),
37 deletions(-)
M
src/platform/qt/CMakeLists.txt
→
src/platform/qt/CMakeLists.txt
@@ -47,11 +47,14 @@ return()
endif() if(BUILD_GL) -list(APPEND PLATFORM_SRC ${PLATFORM_SRC} ${CMAKE_SOURCE_DIR}/src/platform/opengl/gl.c) + list(APPEND PLATFORM_SRC ${CMAKE_SOURCE_DIR}/src/platform/opengl/gl.c) + if(NOT WIN32) + list(APPEND PLATFORM_SRC ${CMAKE_SOURCE_DIR}/src/platform/opengl/gles2.c) + endif() endif() if(BUILD_GLES2) -list(APPEND PLATFORM_SRC ${PLATFORM_SRC} ${CMAKE_SOURCE_DIR}/src/platform/opengl/gles2.c) + list(APPEND PLATFORM_SRC ${CMAKE_SOURCE_DIR}/src/platform/opengl/gles2.c) endif() get_target_property(QT_TYPE Qt5::Core TYPE)
M
src/platform/qt/DisplayGL.cpp
→
src/platform/qt/DisplayGL.cpp
@@ -10,6 +10,13 @@ #include <QResizeEvent>
extern "C" { #include "gba/supervisor/thread.h" + +#ifdef BUILD_GL +#include "platform/opengl/gl.h" +#endif +#if !defined(_WIN32) +#include "platform/opengl/gles2.h" +#endif } using namespace QGBA;@@ -18,10 +25,15 @@ DisplayGL::DisplayGL(const QGLFormat& format, QWidget* parent)
: Display(parent) , m_isDrawing(false) , m_gl(new EmptyGLWidget(format, this)) - , m_painter(new PainterGL(m_gl)) , m_drawThread(nullptr) , m_context(nullptr) { + QGLFormat::OpenGLVersionFlag glVersion = QGLFormat::OpenGL_Version_1_4; + QGLFormat::OpenGLVersionFlags supported = QGLFormat::openGLVersionFlags(); + if (supported & QGLFormat::OpenGL_Version_2_1) { + glVersion = QGLFormat::OpenGL_Version_2_1; + } + m_painter = new PainterGL(m_gl, glVersion); m_gl->setMouseTracking(true); m_gl->setAttribute(Qt::WA_TransparentForMouseEvents); // This doesn't seem to work? }@@ -135,24 +147,44 @@ QMetaObject::invokeMethod(m_painter, "resize", Qt::BlockingQueuedConnection, Q_ARG(QSize, size()));
} } -PainterGL::PainterGL(QGLWidget* parent) +PainterGL::PainterGL(QGLWidget* parent, QGLFormat::OpenGLVersionFlag glVersion) : m_gl(parent) , m_active(false) , m_context(nullptr) , m_messagePainter(nullptr) { #ifdef BUILD_GL - GBAGLContextCreate(&m_backend); -#elif defined(BUILD_GLES2) - GBAGLES2ContextCreate(&m_backend); + GBAGLContext* glBackend; #endif - m_backend.d.swap = [](VideoBackend* v) { +#if !defined(_WIN32) + GBAGLES2Context* gl2Backend; +#endif + + switch (glVersion) { + default: +#if !defined(_WIN32) + gl2Backend = new GBAGLES2Context; + GBAGLES2ContextCreate(gl2Backend); + m_backend = &gl2Backend->d; + break; +#endif + case QGLFormat::OpenGL_Version_1_1: + case QGLFormat::OpenGL_Version_1_2: + case QGLFormat::OpenGL_Version_1_3: + case QGLFormat::OpenGL_Version_1_4: + case QGLFormat::OpenGL_Version_1_5: + glBackend = new GBAGLContext; + GBAGLContextCreate(glBackend); + m_backend = &glBackend->d; + break; + } + m_backend->swap = [](VideoBackend* v) { PainterGL* painter = static_cast<PainterGL*>(v->user); painter->m_gl->swapBuffers(); }; - m_backend.d.user = this; - m_backend.d.filter = false; - m_backend.d.lockAspectRatio = false; + m_backend->user = this; + m_backend->filter = false; + m_backend->lockAspectRatio = false; for (int i = 0; i < 2; ++i) { m_free.append(new uint32_t[256 * 256]);@@ -166,6 +198,7 @@ }
for (auto item : m_free) { delete[] item; } + delete m_backend; } void PainterGL::setContext(GBAThread* context) {@@ -184,14 +217,14 @@ }
} void PainterGL::lockAspectRatio(bool lock) { - m_backend.d.lockAspectRatio = lock; + m_backend->lockAspectRatio = lock; if (m_active) { forceDraw(); } } void PainterGL::filter(bool filter) { - m_backend.d.filter = filter; + m_backend->filter = filter; if (m_active) { forceDraw(); }@@ -199,7 +232,7 @@ }
void PainterGL::start() { m_gl->makeCurrent(); - m_backend.d.init(&m_backend.d, reinterpret_cast<WHandle>(m_gl->winId())); + m_backend->init(m_backend, reinterpret_cast<WHandle>(m_gl->winId())); m_gl->doneCurrent(); m_active = true; }@@ -214,7 +247,7 @@ m_painter.begin(m_gl->context()->device());
performDraw(); m_painter.end(); GBASyncWaitFrameEnd(&m_context->sync); - m_backend.d.swap(&m_backend.d); + m_backend->swap(m_backend); } else { GBASyncWaitFrameEnd(&m_context->sync); }@@ -227,16 +260,16 @@ void PainterGL::forceDraw() {
m_painter.begin(m_gl->context()->device()); performDraw(); m_painter.end(); - m_backend.d.swap(&m_backend.d); + m_backend->swap(m_backend); } void PainterGL::stop() { m_active = false; m_gl->makeCurrent(); dequeueAll(); - m_backend.d.clear(&m_backend.d); - m_backend.d.swap(&m_backend.d); - m_backend.d.deinit(&m_backend.d); + m_backend->clear(m_backend); + m_backend->swap(m_backend); + m_backend->deinit(m_backend); m_gl->doneCurrent(); m_gl->context()->moveToThread(m_gl->thread()); moveToThread(m_gl->thread());@@ -253,8 +286,8 @@
void PainterGL::performDraw() { m_painter.beginNativePainting(); float r = m_gl->devicePixelRatio(); - m_backend.d.resized(&m_backend.d, m_size.width() * r, m_size.height() * r); - m_backend.d.drawFrame(&m_backend.d); + m_backend->resized(m_backend, m_size.width() * r, m_size.height() * r); + m_backend->drawFrame(m_backend); m_painter.endNativePainting(); if (m_messagePainter) { m_messagePainter->paint(&m_painter);@@ -281,7 +314,7 @@ m_mutex.unlock();
return; } uint32_t* buffer = m_queue.dequeue(); - m_backend.d.postFrame(&m_backend.d, buffer); + m_backend->postFrame(m_backend, buffer); m_free.append(buffer); m_mutex.unlock(); }@@ -294,7 +327,7 @@ buffer = m_queue.dequeue();
m_free.append(buffer); } if (buffer) { - m_backend.d.postFrame(&m_backend.d, buffer); + m_backend->postFrame(m_backend, buffer); } m_mutex.unlock(); }
M
src/platform/qt/DisplayGL.h
→
src/platform/qt/DisplayGL.h
@@ -15,15 +15,8 @@ #include <QQueue>
#include <QThread> #include <QTimer> -extern "C" { -#ifdef BUILD_GL -#include "platform/opengl/gl.h" -#elif defined(BUILD_GLES2) -#include "platform/opengl/gles2.h" -#endif -} - struct GBAThread; +struct VideoBackend; namespace QGBA {@@ -75,7 +68,7 @@ class PainterGL : public QObject {
Q_OBJECT public: - PainterGL(QGLWidget* parent); + PainterGL(QGLWidget* parent, QGLFormat::OpenGLVersionFlag = QGLFormat::OpenGL_Version_1_1); ~PainterGL(); void setContext(GBAThread*);@@ -105,11 +98,7 @@ QMutex m_mutex;
QGLWidget* m_gl; bool m_active; GBAThread* m_context; -#ifdef BUILD_GL - GBAGLContext m_backend; -#elif defined(BUILD_GLES2) - GBAGLES2Context m_backend; -#endif + VideoBackend* m_backend; QSize m_size; MessagePainter* m_messagePainter; };