mirror of https://github.com/mgba-emu/mgba.git
Qt: Use common OpenGL code
This commit is contained in:
Jeffrey Pfau
parent
ea0b6a14cc
commit
d05e596b38
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@ -39,6 +39,8 @@ if(NOT Qt5OpenGL_FOUND OR NOT Qt5Widgets_FOUND OR NOT OPENGL_FOUND)
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return()
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endif()
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list(APPEND PLATFORM_SRC ${PLATFORM_SRC} ${CMAKE_SOURCE_DIR}/src/platform/opengl/gl.c)
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get_target_property(QT_TYPE Qt5::Core TYPE)
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if(QT_TYPE STREQUAL STATIC_LIBRARY)
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set(QT_STATIC ON)
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@ -14,20 +14,6 @@ extern "C" {
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using namespace QGBA;
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static const GLint _glVertices[] = {
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0, 0,
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256, 0,
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256, 256,
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0, 256
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};
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static const GLint _glTexCoords[] = {
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0, 0,
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1, 0,
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1, 1,
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0, 1
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};
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DisplayGL::DisplayGL(const QGLFormat& format, QWidget* parent)
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: Display(parent)
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, m_gl(new EmptyGLWidget(format, this))
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@ -154,10 +140,16 @@ PainterGL::PainterGL(QGLWidget* parent)
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: m_gl(parent)
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, m_drawTimer(nullptr)
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, m_messageTimer(this)
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, m_lockAspectRatio(false)
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, m_filter(false)
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, m_context(nullptr)
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{
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GBAGLContextCreate(&m_backend);
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m_backend.d.swap = [](VideoBackend* v) {
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PainterGL* painter = static_cast<PainterGL*>(v->user);
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painter->m_gl->swapBuffers();
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};
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m_backend.d.user = this;
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m_backend.d.filter = false;
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m_backend.d.lockAspectRatio = false;
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m_messageFont.setFamily("Source Code Pro");
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m_messageFont.setStyleHint(QFont::Monospace);
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m_messageFont.setPixelSize(13);
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@ -174,16 +166,7 @@ void PainterGL::setContext(GBAThread* context) {
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void PainterGL::setBacking(const uint32_t* backing) {
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m_gl->makeCurrent();
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glBindTexture(GL_TEXTURE_2D, m_tex);
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#ifdef COLOR_16_BIT
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#ifdef COLOR_5_6_5
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 256, 256, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, backing);
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#else
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 256, 256, 0, GL_RGBA, GL_UNSIGNED_SHORT_1_5_5_5_REV, backing);
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#endif
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#else
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 256, 256, 0, GL_RGBA, GL_UNSIGNED_BYTE, backing);
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#endif
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m_backend.d.postFrame(&m_backend.d, backing);
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m_gl->doneCurrent();
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}
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@ -193,43 +176,31 @@ void PainterGL::resize(const QSize& size) {
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int h = m_size.height();
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int drawW = w;
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int drawH = h;
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if (m_lockAspectRatio) {
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if (m_backend.d.lockAspectRatio) {
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if (w * 2 > h * 3) {
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drawW = h * 3 / 2;
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} else if (w * 2 < h * 3) {
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drawH = w * 2 / 3;
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}
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}
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m_viewport = QRect((w - drawW) / 2, (h - drawH) / 2, drawW, drawH);
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m_painter.begin(m_gl->context()->device());
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m_world.reset();
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m_world.translate(m_viewport.x(), m_viewport.y());
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m_world.translate((w - drawW) / 2, (h - drawH) / 2);
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m_world.scale(qreal(drawW) / VIDEO_HORIZONTAL_PIXELS, qreal(drawH) / VIDEO_VERTICAL_PIXELS);
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m_painter.setWorldTransform(m_world);
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m_painter.setFont(m_messageFont);
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m_message.prepare(m_world, m_messageFont);
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m_painter.end();
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if (m_drawTimer) {
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forceDraw();
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}
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}
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void PainterGL::lockAspectRatio(bool lock) {
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m_lockAspectRatio = lock;
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m_backend.d.lockAspectRatio = lock;
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if (m_drawTimer) {
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forceDraw();
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}
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}
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void PainterGL::filter(bool filter) {
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m_filter = filter;
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m_gl->makeCurrent();
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if (m_filter) {
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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} else {
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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}
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m_gl->doneCurrent();
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m_backend.d.filter = filter;
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if (m_drawTimer) {
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forceDraw();
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}
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@ -237,24 +208,7 @@ void PainterGL::filter(bool filter) {
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void PainterGL::start() {
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m_gl->makeCurrent();
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glEnable(GL_TEXTURE_2D);
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glGenTextures(1, &m_tex);
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glBindTexture(GL_TEXTURE_2D, m_tex);
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glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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if (m_filter) {
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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} else {
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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}
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glEnableClientState(GL_TEXTURE_COORD_ARRAY);
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glEnableClientState(GL_VERTEX_ARRAY);
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glVertexPointer(2, GL_INT, 0, _glVertices);
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glTexCoordPointer(2, GL_INT, 0, _glTexCoords);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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glClearColor(0, 0, 0, 0);
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glClear(GL_COLOR_BUFFER_BIT);
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m_backend.d.init(&m_backend.d, (void*) m_gl->winId());
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m_gl->doneCurrent();
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m_drawTimer = new QTimer;
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@ -267,19 +221,17 @@ void PainterGL::start() {
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void PainterGL::draw() {
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GBASyncWaitFrameStart(&m_context->sync, m_context->frameskip);
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m_painter.begin(m_gl->context()->device());
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m_painter.setWorldTransform(m_world);
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performDraw();
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m_painter.end();
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GBASyncWaitFrameEnd(&m_context->sync);
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m_gl->swapBuffers();
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m_backend.d.swap(&m_backend.d);
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}
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void PainterGL::forceDraw() {
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m_painter.begin(m_gl->context()->device());
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m_painter.setWorldTransform(m_world);
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performDraw();
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m_painter.end();
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m_gl->swapBuffers();
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m_backend.d.swap(&m_backend.d);
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}
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void PainterGL::stop() {
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@ -287,10 +239,9 @@ void PainterGL::stop() {
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delete m_drawTimer;
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m_drawTimer = nullptr;
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m_gl->makeCurrent();
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glDeleteTextures(1, &m_tex);
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glClearColor(0, 0, 0, 0);
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glClear(GL_COLOR_BUFFER_BIT);
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m_gl->swapBuffers();
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m_backend.d.clear(&m_backend.d);
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m_backend.d.swap(&m_backend.d);
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m_backend.d.deinit(&m_backend.d);
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m_gl->doneCurrent();
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m_gl->context()->moveToThread(m_gl->thread());
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moveToThread(m_gl->thread());
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@ -309,21 +260,11 @@ void PainterGL::unpause() {
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void PainterGL::performDraw() {
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m_painter.beginNativePainting();
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glOrtho(0, VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS, 0, 0, 1);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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glViewport(0, 0, m_size.width() * m_gl->devicePixelRatio(), m_size.height() * m_gl->devicePixelRatio());
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glClearColor(0, 0, 0, 0);
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glClear(GL_COLOR_BUFFER_BIT);
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QRect viewport(m_viewport.topLeft() * m_gl->devicePixelRatio(), m_viewport.size() * m_gl->devicePixelRatio());
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glViewport(viewport.x(), viewport.y(), viewport.width(), viewport.height());
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glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
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if (m_context->sync.videoFrameWait) {
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glFlush();
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}
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float r = m_gl->devicePixelRatio();
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m_backend.d.resized(&m_backend.d, m_size.width() * r, m_size.height() * r);
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m_backend.d.drawFrame(&m_backend.d);
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m_painter.endNativePainting();
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m_painter.setWorldTransform(m_world);
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m_painter.setRenderHint(QPainter::Antialiasing);
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m_painter.setFont(m_messageFont);
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m_painter.setPen(Qt::black);
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@ -13,6 +13,10 @@
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#include <QThread>
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#include <QTimer>
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extern "C" {
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#include "platform/opengl/gl.h"
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}
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struct GBAThread;
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namespace QGBA {
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@ -94,11 +98,8 @@ private:
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QTimer* m_drawTimer;
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QTimer m_messageTimer;
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GBAThread* m_context;
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GLuint m_tex;
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GBAGLContext m_backend;
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QSize m_size;
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bool m_lockAspectRatio;
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bool m_filter;
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QRect m_viewport;
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QTransform m_world;
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QFont m_messageFont;
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};
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