add anti-aliasing fbo

2 files changed, 37 insertions, 0 deletions

diff --git a/chart2/source/view/main/OpenGLRender.cxx b/chart2/source/view/main/OpenGLRender.cxx
index d76b4fae464a..cbb5af86f39d 100755
--- a/chart2/source/view/main/OpenGLRender.cxx
+++ b/chart2/source/view/main/OpenGLRender.cxx
@@ -1197,5 +1197,34 @@ int OpenGLRender::WGLisExtensionSupported(const char *extension)
 }
 #endif
 
+void OpenGLRender::SetColor(sal_uInt32 color)
+{
+    sal_uInt8 r = (color & 0x00FF0000) >> 16;
+    sal_uInt8 g = (color & 0x0000FF00) >> 8;
+    sal_uInt8 b = (color & 0x000000FF);
+    m_2DColor = glm::vec4((float)r / 255.0f, (float)g / 255.0f, (float)b / 255.0f, m_fLineAlpha);
+}
+
+int OpenGLRender::CreateMultiSampleFrameBufObj()
+{
+    glGenFramebuffers(1, &m_frameBufferMS);
+    glBindFramebuffer(GL_FRAMEBUFFER, m_frameBufferMS);
+
+    glGenRenderbuffers(1, &m_renderBufferColorMS);
+    glBindRenderbuffer(GL_RENDERBUFFER, m_renderBufferColorMS);
+    glRenderbufferStorageMultisample(GL_RENDERBUFFER, 8,  GL_RGB, m_iWidth, m_iHeight);
+    glBindRenderbuffer(GL_RENDERBUFFER, 0);
+    glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, m_renderBufferColorMS);
+
+    glGenRenderbuffers(1, &m_renderBufferDepthMS);
+    glBindRenderbuffer(GL_RENDERBUFFER, m_renderBufferDepthMS);
+    glRenderbufferStorageMultisample(GL_RENDERBUFFER, 8, GL_DEPTH_COMPONENT24, m_iWidth, m_iHeight);
+    glBindRenderbuffer(GL_RENDERBUFFER, 0);
+    glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, m_renderBufferDepthMS);
+    glBindFramebuffer(GL_FRAMEBUFFER, 0);
+
+    return 0;
+}
+
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/view/main/OpenGLRender.hxx b/chart2/source/view/main/OpenGLRender.hxx
index 70b05e05778a..aed00f91ae0b 100755
--- a/chart2/source/view/main/OpenGLRender.hxx
+++ b/chart2/source/view/main/OpenGLRender.hxx
@@ -129,6 +129,7 @@ public:
 #endif
     int GetMSAASupport();
     int GetMSAAFormat();
+    void SetColor(sal_uInt32 color);
 private:
     GLint LoadShaders(const char *vertexShader,const char *fragmentShader);
     int CreateTextureObj(int width, int height);
@@ -140,6 +141,8 @@ private:
     int InitTempWindow(HWND *hwnd, int width, int height, PIXELFORMATDESCRIPTOR inPfd);
 #endif
     int WGLisExtensionSupported(const char *extension);
+	int CreateMultiSampleFrameBufObj();
+
 private:
     // Projection matrix : default 45 degree Field of View, 4:3 ratio, display range : 0.1 unit <-> 100 units
     glm::mat4 m_Projection;
@@ -223,6 +226,11 @@ private:
 	int m_iArbMultisampleFormat;
 	GLint m_iSampleBufs;
 	GLint m_iSamples;
+
+    glm::vec4 m_2DColor;
+	GLuint m_frameBufferMS;
+	GLuint m_renderBufferColorMS;
+	GLuint m_renderBufferDepthMS;
 };
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */