155 lines
5.3 KiB
Diff
155 lines
5.3 KiB
Diff
From 2fad0a6fa3c06577995ac44ed0a2a12eaef819c2 Mon Sep 17 00:00:00 2001
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From: Jani Hautakangas <jani.hautakangas@ixonos.com>
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Date: Thu, 16 May 2013 09:52:07 +0300
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Subject: [PATCH 13/14] QOpenGLPaintDevice sub-area support
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Allows creating QOpenGLPaintDevice targetting sub-area
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of binded framebuffer.
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Upstream-Status: Pending
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Change-Id: Ida2f079aa1ac0b87d36b54129e226399dbcdda80
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Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
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---
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src/gui/opengl/qopenglpaintdevice.cpp | 12 ++++++++++++
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src/gui/opengl/qopenglpaintdevice.h | 2 ++
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src/gui/opengl/qopenglpaintengine.cpp | 10 +++++++---
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src/gui/opengl/qopenglpaintengine_p.h | 1 +
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src/gui/opengl/qopengltextureglyphcache.cpp | 2 +-
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5 files changed, 23 insertions(+), 4 deletions(-)
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diff --git a/src/gui/opengl/qopenglpaintdevice.cpp b/src/gui/opengl/qopenglpaintdevice.cpp
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index fa392d1..5df1762 100644
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--- a/src/gui/opengl/qopenglpaintdevice.cpp
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+++ b/src/gui/opengl/qopenglpaintdevice.cpp
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@@ -111,6 +111,7 @@ class QOpenGLPaintDevicePrivate
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public:
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QOpenGLPaintDevicePrivate(const QSize &size);
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+ QPoint offset;
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QSize size;
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QOpenGLContext *ctx;
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@@ -159,6 +160,12 @@ QOpenGLPaintDevice::QOpenGLPaintDevice(int width, int height)
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{
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}
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+QOpenGLPaintDevice::QOpenGLPaintDevice(int x, int y, int width, int height)
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+ : d_ptr(new QOpenGLPaintDevicePrivate(QSize(width, height)))
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+{
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+ d_ptr->offset = QPoint(x,y);
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+}
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+
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/*!
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Destroys the QOpenGLPaintDevice.
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*/
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@@ -228,6 +235,11 @@ QOpenGLContext *QOpenGLPaintDevice::context() const
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return d_ptr->ctx;
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}
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+QPoint QOpenGLPaintDevice::offset() const
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+{
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+ return d_ptr->offset;
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+}
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+
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/*!
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Returns the pixel size of the paint device.
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diff --git a/src/gui/opengl/qopenglpaintdevice.h b/src/gui/opengl/qopenglpaintdevice.h
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index c05571c..01eb1bc 100644
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--- a/src/gui/opengl/qopenglpaintdevice.h
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+++ b/src/gui/opengl/qopenglpaintdevice.h
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@@ -62,12 +62,14 @@ public:
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QOpenGLPaintDevice();
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explicit QOpenGLPaintDevice(const QSize &size);
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QOpenGLPaintDevice(int width, int height);
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+ QOpenGLPaintDevice(int x, int y, int width, int height);
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virtual ~QOpenGLPaintDevice();
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int devType() const { return QInternal::OpenGL; }
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QPaintEngine *paintEngine() const;
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QOpenGLContext *context() const;
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+ QPoint offset() const;
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QSize size() const;
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void setSize(const QSize &size);
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void setDevicePixelRatio(qreal devicePixelRatio);
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diff --git a/src/gui/opengl/qopenglpaintengine.cpp b/src/gui/opengl/qopenglpaintengine.cpp
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index 0513551..f6aeb15 100644
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--- a/src/gui/opengl/qopenglpaintengine.cpp
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+++ b/src/gui/opengl/qopenglpaintengine.cpp
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@@ -1985,7 +1985,10 @@ bool QOpenGL2PaintEngineEx::begin(QPaintDevice *pdev)
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for (int i = 0; i < QT_GL_VERTEX_ARRAY_TRACKED_COUNT; ++i)
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d->vertexAttributeArraysEnabledState[i] = false;
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+ const QPoint offset = d->device->offset();
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const QSize sz = d->device->size();
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+ d->x = offset.x();
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+ d->y = offset.y();
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d->width = sz.width();
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d->height = sz.height();
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d->mode = BrushDrawingMode;
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@@ -2073,7 +2076,7 @@ void QOpenGL2PaintEngineEx::ensureActive()
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d->device->ensureActiveTarget();
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d->transferMode(BrushDrawingMode);
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- glViewport(0, 0, d->width, d->height);
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+ glViewport(d->x, d->y, d->width, d->height);
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d->needsSync = false;
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d->lastMaskTextureUsed = 0;
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d->shaderManager->setDirty();
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@@ -2116,6 +2119,7 @@ void QOpenGL2PaintEngineExPrivate::updateClipScissorTest()
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if (bounds == QRect(0, 0, width, height)) {
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glDisable(GL_SCISSOR_TEST);
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} else {
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+ bounds = QRect(bounds.x(), bounds.y(), bounds.width(), bounds.height());
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glEnable(GL_SCISSOR_TEST);
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setScissor(bounds);
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}
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@@ -2124,14 +2128,14 @@ void QOpenGL2PaintEngineExPrivate::updateClipScissorTest()
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void QOpenGL2PaintEngineExPrivate::setScissor(const QRect &rect)
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{
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- const int left = rect.left();
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+ const int left = rect.left() + x;
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const int width = rect.width();
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int bottom = height - (rect.top() + rect.height());
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if (device->paintFlipped()) {
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bottom = rect.top();
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}
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+ bottom += y;
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const int height = rect.height();
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-
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glScissor(left, bottom, width, height);
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}
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diff --git a/src/gui/opengl/qopenglpaintengine_p.h b/src/gui/opengl/qopenglpaintengine_p.h
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index d51f0e5..0d4b38d 100644
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--- a/src/gui/opengl/qopenglpaintengine_p.h
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+++ b/src/gui/opengl/qopenglpaintengine_p.h
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@@ -264,6 +264,7 @@ public:
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QOpenGL2PaintEngineEx* q;
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QOpenGLEngineShaderManager* shaderManager;
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QOpenGLPaintDevice* device;
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+ int x, y;
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int width, height;
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QOpenGLContext *ctx;
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EngineMode mode;
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diff --git a/src/gui/opengl/qopengltextureglyphcache.cpp b/src/gui/opengl/qopengltextureglyphcache.cpp
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index 3b62d1d..a5d1f7e 100644
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--- a/src/gui/opengl/qopengltextureglyphcache.cpp
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+++ b/src/gui/opengl/qopengltextureglyphcache.cpp
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@@ -273,7 +273,7 @@ void QOpenGLTextureGlyphCache::resizeTextureData(int width, int height)
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funcs.glBindFramebuffer(GL_FRAMEBUFFER, (GLuint)oldFbo);
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if (pex != 0) {
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- glViewport(0, 0, pex->width, pex->height);
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+ glViewport(pex->x, pex->y, pex->width, pex->height);
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pex->updateClipScissorTest();
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} else {
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m_blitProgram->disableAttributeArray(int(QT_VERTEX_COORDS_ATTR));
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--
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1.8.5.3
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