#include "wx/palette.h"
#include "wx/window.h"
-class WXDLLIMPEXP_GL wxGLCanvas;
-class WXDLLIMPEXP_GL wxGLContext;
+class WXDLLIMPEXP_FWD_GL wxGLCanvas;
+class WXDLLIMPEXP_FWD_GL wxGLContext;
// ----------------------------------------------------------------------------
// Constants for attributes list
// ----------------------------------------------------------------------------
-// The generic OpenGL implementation doesn't support most of these options,
-// such as stereo, auxiliary buffers, alpha channel, and accumulator buffer.
-// Other implementations may actually support them.
+// Notice that not all implementation support options such as stereo, auxiliary
+// buffers, alpha channel, and accumulator buffer, use IsDisplaySupported() to
+// check for individual attributes support.
enum
{
- WX_GL_RGBA=1, /* use true color palette */
- WX_GL_BUFFER_SIZE, /* bits for buffer if not WX_GL_RGBA */
- WX_GL_LEVEL, /* 0 for main buffer, >0 for overlay, <0 for underlay */
- WX_GL_DOUBLEBUFFER, /* use doublebuffer */
- WX_GL_STEREO, /* use stereoscopic display */
- WX_GL_AUX_BUFFERS, /* number of auxiliary buffers */
- WX_GL_MIN_RED, /* use red buffer with most bits (> MIN_RED bits) */
- WX_GL_MIN_GREEN, /* use green buffer with most bits (> MIN_GREEN bits) */
- WX_GL_MIN_BLUE, /* use blue buffer with most bits (> MIN_BLUE bits) */
- WX_GL_MIN_ALPHA, /* use alpha buffer with most bits (> MIN_ALPHA bits) */
- WX_GL_DEPTH_SIZE, /* bits for Z-buffer (0,16,32) */
- WX_GL_STENCIL_SIZE, /* bits for stencil buffer */
- WX_GL_MIN_ACCUM_RED, /* use red accum buffer with most bits (> MIN_ACCUM_RED bits) */
- WX_GL_MIN_ACCUM_GREEN, /* use green buffer with most bits (> MIN_ACCUM_GREEN bits) */
- WX_GL_MIN_ACCUM_BLUE, /* use blue buffer with most bits (> MIN_ACCUM_BLUE bits) */
- WX_GL_MIN_ACCUM_ALPHA /* use alpha buffer with most bits (> MIN_ACCUM_ALPHA bits) */
+ WX_GL_RGBA = 1, // use true color palette (on if no attrs specified)
+ WX_GL_BUFFER_SIZE, // bits for buffer if not WX_GL_RGBA
+ WX_GL_LEVEL, // 0 for main buffer, >0 for overlay, <0 for underlay
+ WX_GL_DOUBLEBUFFER, // use double buffering (on if no attrs specified)
+ WX_GL_STEREO, // use stereoscopic display
+ WX_GL_AUX_BUFFERS, // number of auxiliary buffers
+ WX_GL_MIN_RED, // use red buffer with most bits (> MIN_RED bits)
+ WX_GL_MIN_GREEN, // use green buffer with most bits (> MIN_GREEN bits)
+ WX_GL_MIN_BLUE, // use blue buffer with most bits (> MIN_BLUE bits)
+ WX_GL_MIN_ALPHA, // use alpha buffer with most bits (> MIN_ALPHA bits)
+ WX_GL_DEPTH_SIZE, // bits for Z-buffer (0,16,32)
+ WX_GL_STENCIL_SIZE, // bits for stencil buffer
+ WX_GL_MIN_ACCUM_RED, // use red accum buffer with most bits (> MIN_ACCUM_RED bits)
+ WX_GL_MIN_ACCUM_GREEN, // use green buffer with most bits (> MIN_ACCUM_GREEN bits)
+ WX_GL_MIN_ACCUM_BLUE, // use blue buffer with most bits (> MIN_ACCUM_BLUE bits)
+ WX_GL_MIN_ACCUM_ALPHA, // use alpha buffer with most bits (> MIN_ACCUM_ALPHA bits)
+ WX_GL_SAMPLE_BUFFERS, // 1 for multisampling support (antialiasing)
+ WX_GL_SAMPLES // 4 for 2x2 antialising supersampling on most graphics cards
};
#define wxGLCanvasName _T("GLCanvas")
*/
// set this context as the current one
- virtual void SetCurrent(const wxGLCanvas& win) const = 0;
+ virtual bool SetCurrent(const wxGLCanvas& win) const = 0;
};
// ----------------------------------------------------------------------------
{
public:
// default ctor doesn't initialize the window, use Create() later
- wxGLCanvasBase()
- {
-#if WXWIN_COMPATIBILITY_2_8
- m_glContext = NULL;
-#endif
- }
+ wxGLCanvasBase();
virtual ~wxGLCanvasBase();
// ----------
// set the given context associated with this window as the current one
- void SetCurrent(const wxGLContext& context) const;
+ bool SetCurrent(const wxGLContext& context) const;
// flush the back buffer (if we have it)
- virtual void SwapBuffers() = 0;
+ virtual bool SwapBuffers() = 0;
// accessors
// ---------
+ // check if the given attributes are supported without creating a canvas
+ static bool IsDisplaySupported(const int *attribList);
+
const wxPalette *GetPalette() const { return &m_palette; }
// miscellaneous helper functions
// call glcolor() for the colour with the given name, return false if
// colour not found
- bool SetColour(const wxChar *colour);
+ bool SetColour(const wxString& colour);
+ // return true if the extension with given name is supported
+ //
+ // notice that while this function is implemented for all of GLX, WGL and
+ // AGL the extensions names are usually not the same for different
+ // platforms and so the code using it still usually uses conditional
+ // compilation
+ static bool IsExtensionSupported(const char *extension);
// deprecated methods using the implicit wxGLContext
#if WXWIN_COMPATIBILITY_2_8
// (not supported in most ports)
virtual wxPalette CreateDefaultPalette() { return wxNullPalette; }
+ // check if the given extension name is present in the space-separated list
+ // of extensions supported by the current implementation such as returned
+ // by glXQueryExtensionsString() or glGetString(GL_EXTENSIONS)
+ static bool IsExtensionInList(const char *list, const char *extension);
wxPalette m_palette;
#endif // WXWIN_COMPATIBILITY_2_8
};
+// ----------------------------------------------------------------------------
+// wxGLApp: a special wxApp subclass for OpenGL applications which must be used
+// to select a visual compatible with the given attributes
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_GL wxGLAppBase : public wxApp
+{
+public:
+ wxGLAppBase() : wxApp() { }
+
+ // use this in the constructor of the user-derived wxGLApp class to
+ // determine if an OpenGL rendering context with these attributes
+ // is available - returns true if so, false if not.
+ virtual bool InitGLVisual(const int *attribList) = 0;
+};
+
#if defined(__WXMSW__)
#include "wx/msw/glcanvas.h"
#elif defined(__WXMOTIF__) || defined(__WXX11__)
#error "wxGLCanvas not supported in this wxWidgets port"
#endif
-class WXDLLIMPEXP_GL wxGLApp : public wxApp
+// wxMac and wxMSW don't need anything extra in wxGLAppBase, so declare it here
+#ifndef wxGL_APP_DEFINED
+
+class WXDLLIMPEXP_GL wxGLApp : public wxGLAppBase
{
public:
- wxGLApp() : wxApp() { }
+ wxGLApp() : wxGLAppBase() { }
- // use this in the constructor of the user-derived wxGLApp class to
- // determine if an OpenGL rendering context with these attributes
- // is available - returns true if so, false if not.
- bool InitGLVisual(const int *attribList);
+ virtual bool InitGLVisual(const int *attribList);
private:
DECLARE_DYNAMIC_CLASS(wxGLApp)
};
+#endif // !wxGL_APP_DEFINED
+
#endif // wxUSE_GLCANVAS
#endif // _WX_GLCANVAS_H_BASE_
projects / wxWidgets.git / blobdiff