Shadow support for surface

Task-number: QTRD-2266

Change-Id: I99fd7a6eda570df3d114ab10a1b07c22736cc86c
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>

2 files changed, 12 insertions, 2 deletions

diff --git a/src/datavisualization/utils/texturehelper.cpp b/src/datavisualization/utils/texturehelper.cpp
index fd5061f2..cb18fcc2 100644
--- a/src/datavisualization/utils/texturehelper.cpp
+++ b/src/datavisualization/utils/texturehelper.cpp
@@ -168,7 +168,7 @@ GLuint TextureHelper::createGradientTexture(const QLinearGradient &gradient)
 }
 
 #if !defined(QT_OPENGL_ES_2)
-GLuint TextureHelper::createDepthTexture(const QSize &size, GLuint &frameBuffer, GLuint textureSize)
+GLuint TextureHelper::createDepthTexture(const QSize &size, GLuint textureSize)
 {
     GLuint depthtextureid;
 
@@ -185,6 +185,15 @@ GLuint TextureHelper::createDepthTexture(const QSize &size, GLuint &frameBuffer,
                  size.height() * textureSize, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);
     glBindTexture(GL_TEXTURE_2D, 0);
 
+    return depthtextureid;
+}
+#endif
+
+#if !defined(QT_OPENGL_ES_2)
+GLuint TextureHelper::createDepthTextureFrameBuffer(const QSize &size, GLuint &frameBuffer, GLuint textureSize)
+{
+    GLuint depthtextureid = createDepthTexture(size, textureSize);
+
     // Create frame buffer
     if (!frameBuffer)
         glGenFramebuffers(1, &frameBuffer);
diff --git a/src/datavisualization/utils/texturehelper_p.h b/src/datavisualization/utils/texturehelper_p.h
index 97bd9e3d..84570a13 100644
--- a/src/datavisualization/utils/texturehelper_p.h
+++ b/src/datavisualization/utils/texturehelper_p.h
@@ -50,8 +50,9 @@ class TextureHelper : protected QOpenGLFunctions
     GLuint createSelectionTexture(const QSize &size, GLuint &frameBuffer, GLuint &depthBuffer);
     GLuint createGradientTexture(const QLinearGradient &gradient);
 #if !defined(QT_OPENGL_ES_2)
+    GLuint createDepthTexture(const QSize &size, GLuint textureSize);
     // Returns depth texture and inserts generated framebuffer to parameter
-    GLuint createDepthTexture(const QSize &size, GLuint &frameBuffer, GLuint textureSize = 1);
+    GLuint createDepthTextureFrameBuffer(const QSize &size, GLuint &frameBuffer, GLuint textureSize);
 #endif
     void deleteTexture(const GLuint *texture);