// Constants for attriblist
//---------------------------------------------------------------------------
+// The generic GL implementation doesn't support most of these options,
+// such as stereo, auxiliary buffers, alpha channel, and accum buffer.
+// Other implementations may actually support them.
+
enum
{
WX_GL_RGBA=1, /* use true color palette */
- WX_GL_DEPTH_SIZE, /* bits for Z-buffer (0,16,32) */
+ 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) */
-/* these are enough constants for now, the remaining will be added later */
+ WX_GL_MIN_BLUE, /* use blue buffer with most bits (> MIN_BLUE bits) */
+ WX_GL_MIN_ALPHA, /* use blue 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 blue buffer with most bits (> MIN_ACCUM_ALPHA bits) */
};
class WXDLLEXPORT wxGLCanvas; /* forward reference */
wxGLCanvas( wxWindow *parent, const wxGLContext *shared = (wxGLContext *)NULL,
wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize, long style = 0, const wxString& name = "GLCanvas",
- int *attribList = (int*) NULL, const wxPalette& palette = wxNullPalette );
+ int *attribList = (int*) NULL, const wxPalette& palette = wxNullPalette );
wxGLCanvas( wxWindow *parent, const wxGLCanvas *shared = (wxGLCanvas *)NULL, wxWindowID id = -1,
const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = 0,
- const wxString& name = "GLCanvas", int *attribList = 0, const wxPalette& palette = wxNullPalette );
+ const wxString& name = "GLCanvas", int *attribList = 0, const wxPalette& palette = wxNullPalette );
~wxGLCanvas();
// Replaces wxWindow::Create functionality, since we need to use a different window class
bool Create(wxWindow *parent, wxWindowID id,
- const wxPoint& pos, const wxSize& size, long style, const wxString& name);
+ const wxPoint& pos, const wxSize& size, long style, const wxString& name);
void SetCurrent();
void SetColour(const char *colour);
inline wxGLContext* GetContext() const { return m_glContext; }
inline WXHDC GetHDC() const { return m_hDC; }
- void SetupPixelFormat();
+ void SetupPixelFormat(int *attribList = (int*) NULL);
void SetupPalette(const wxPalette& palette);
wxPalette CreateDefaultPalette();
DECLARE_EVENT_TABLE()
};
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Give extensions proper function names. */
-
-/* N.B. - this is not completely implemented as yet */
-
-/* EXT_vertex_array */
-void glArrayElementEXT(GLint i);
-void glColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer);
-void glDrawArraysEXT(GLenum mode, GLint first, GLsizei count);
-void glEdgeFlagPointerEXT(GLsizei stride, GLsizei count, const GLboolean *pointer);
-void glGetPointervEXT(GLenum pname, GLvoid* *params);
-void glIndexPointerEXT(GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer);
-void glNormalPointerEXT(GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer);
-void glTexCoordPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer);
-void glVertexPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer);
-
-/* EXT_color_subtable */
-void glColorSubtableEXT(GLenum target, GLsizei start, GLsizei count, GLenum format, GLenum type, const GLvoid *table);
-
-/* EXT_color_table */
-void glColorTableEXT(GLenum target, GLenum internalformat, GLsizei width, GLenum format, GLenum type, const GLvoid *table);
-void glCopyColorTableEXT(GLenum target, GLenum internalformat, GLint x, GLint y, GLsizei width);
-void glGetColorTableEXT(GLenum target, GLenum format, GLenum type, GLvoid *table);
-void glGetColorTableParamaterfvEXT(GLenum target, GLenum pname, GLfloat *params);
-void glGetColorTavleParameterivEXT(GLenum target, GLenum pname, GLint *params);
-
-/* SGI_compiled_vertex_array */
-void glLockArraysSGI(GLint first, GLsizei count);
-void glUnlockArraysSGI();
-
-/* SGI_cull_vertex */
-void glCullParameterdvSGI(GLenum pname, GLdouble* params);
-void glCullParameterfvSGI(GLenum pname, GLfloat* params);
-
-/* SGI_index_func */
-void glIndexFuncSGI(GLenum func, GLclampf ref);
-
-/* SGI_index_material */
-void glIndexMaterialSGI(GLenum face, GLenum mode);
-
-/* WIN_swap_hint */
-void glAddSwapHintRectWin(GLint x, GLint y, GLsizei width, GLsizei height);
-
-#ifdef __cplusplus
-}
-#endif
-
#endif
// wxUSE_GLCANVAS
#endif
// Created: 1995, 1999
// RCS-ID: $Id$
// Copyright: (c) Julian Smart, Wolfram Gloger
-// Licence: wxWindows licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
{
int bits;
for (bits=0; n>0;) {
- if(n & 1) bits++;
- n = n >> 1;
+ if(n & 1) bits++;
+ n = n >> 1;
}
return bits;
}
IMPLEMENT_CLASS(wxGLCanvas, wxScrolledWindow)
-wxGLCanvas::wxGLCanvas(wxWindow *parent,
- wxWindowID id,
- const wxPoint& pos,
- const wxSize& size,
- long style,
- const wxString& name,
- int *attrib_list, const wxPalette& palette)
- : wxScrolledWindow(parent, id, pos, size, style, name)
+wxGLCanvas::wxGLCanvas(wxWindow *parent, wxWindowID id = -1, const wxPoint& pos,
+ const wxSize& size, long style,
+ const wxString& name, int *attribList, const wxPalette& palette):
+ wxScrolledWindow(parent, id, pos, size, style, name)
{
XVisualInfo *vi, vi_templ;
XWindowAttributes xwa;
glx_cx = 0;
// Check for the presence of the GLX extension
if(!glXQueryExtension(display, NULL, NULL)) {
- wxDebugMsg("wxGLCanvas: GLX extension is missing\n");
- return;
+ wxDebugMsg("wxGLCanvas: GLX extension is missing\n");
+ return;
}
- if(attrib_list) {
- // Get an appropriate visual
- vi = glXChooseVisual(display, DefaultScreen(display), attrib_list);
- if(!vi) return;
-
- // Here we should make sure that vi is the same visual as the
- // one used by the xwindow drawable in wxCanvas. However,
- // there is currently no mechanism for this in wx_canvs.cc.
+ if(attribList) {
+ int data[512], arg=0, p=0;
+
+ while( (attribList[arg]!=0) && (p<512) )
+ {
+ switch( attribList[arg++] )
+ {
+ case WX_GL_RGBA: data[p++] = GLX_RGBA; break;
+ case WX_GL_BUFFER_SIZE:
+ data[p++]=GLX_BUFFER_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_LEVEL:
+ data[p++]=GLX_LEVEL; data[p++]=attribList[arg++]; break;
+ case WX_GL_DOUBLEBUFFER: data[p++] = GLX_DOUBLEBUFFER; break;
+ case WX_GL_STEREO: data[p++] = GLX_STEREO; break;
+ case WX_GL_AUX_BUFFERS:
+ data[p++]=GLX_AUX_BUFFERS; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_RED:
+ data[p++]=GLX_RED_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_GREEN:
+ data[p++]=GLX_GREEN_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_BLUE:
+ data[p++]=GLX_BLUE_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_ALPHA:
+ data[p++]=GLX_ALPHA_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_DEPTH_SIZE:
+ data[p++]=GLX_DEPTH_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_STENCIL_SIZE:
+ data[p++]=GLX_STENCIL_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_ACCUM_RED:
+ data[p++]=GLX_ACCUM_RED_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_ACCUM_GREEN:
+ data[p++]=GLX_ACCUM_GREEN_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_ACCUM_BLUE:
+ data[p++]=GLX_ACCUM_BLUE_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_ACCUM_ALPHA:
+ data[p++]=GLX_ACCUM_ALPHA_SIZE; data[p++]=attribList[arg++]; break;
+ default:
+ break;
+ }
+ }
+ data[p] = 0;
+
+ attribList = (int*) data;
+ // Get an appropriate visual
+ vi = glXChooseVisual(display, DefaultScreen(display), attribList);
+ if(!vi) return;
+
+ // Here we should make sure that vi is the same visual as the
+ // one used by the xwindow drawable in wxCanvas. However,
+ // there is currently no mechanism for this in wx_canvs.cc.
} else {
- // By default, we use the visual of xwindow
- XGetWindowAttributes(display, (Window) GetXWindow(), &xwa);
- vi_templ.visualid = XVisualIDFromVisual(xwa.visual);
- vi = XGetVisualInfo(display, VisualIDMask, &vi_templ, &n);
- if(!vi) return;
- glXGetConfig(display, vi, GLX_USE_GL, &val);
- if(!val) return;
- // Basically, this is it. It should be possible to use vi
- // in glXCreateContext() below. But this fails with Mesa.
- // I notified the Mesa author about it; there may be a fix.
+ // By default, we use the visual of xwindow
+ // NI: is this really senseful ? opengl in e.g. color index mode ?
+ XGetWindowAttributes(display, (Window) GetXWindow(), &xwa);
+ vi_templ.visualid = XVisualIDFromVisual(xwa.visual);
+ vi = XGetVisualInfo(display, VisualIDMask, &vi_templ, &n);
+ if(!vi) return;
+ glXGetConfig(display, vi, GLX_USE_GL, &val);
+ if(!val) return;
+ // Basically, this is it. It should be possible to use vi
+ // in glXCreateContext() below. But this fails with Mesa.
+ // I notified the Mesa author about it; there may be a fix.
#ifdef OLD_MESA
- // Construct an attribute list matching the visual
- int a_list[32];
- n = 0;
- if(vi->c_class==TrueColor || vi->c_class==DirectColor) { // RGBA visual
- a_list[n++] = GLX_RGBA;
- a_list[n++] = GLX_RED_SIZE;
- a_list[n++] = bitcount(vi->red_mask);
- a_list[n++] = GLX_GREEN_SIZE;
- a_list[n++] = bitcount(vi->green_mask);
- a_list[n++] = GLX_BLUE_SIZE;
- a_list[n++] = bitcount(vi->blue_mask);
- glXGetConfig(display, vi, GLX_ALPHA_SIZE, &val);
- a_list[n++] = GLX_ALPHA_SIZE;
- a_list[n++] = val;
- } else { // Color index visual
- glXGetConfig(display, vi, GLX_BUFFER_SIZE, &val);
- a_list[n++] = GLX_BUFFER_SIZE;
- a_list[n++] = val;
- }
- a_list[n] = None;
- XFree(vi);
- vi = glXChooseVisual(display, DefaultScreen(display), a_list);
- if(!vi) return;
+ // Construct an attribute list matching the visual
+ int a_list[32];
+ n = 0;
+ if(vi->c_class==TrueColor || vi->c_class==DirectColor) { // RGBA visual
+ a_list[n++] = GLX_RGBA;
+ a_list[n++] = GLX_RED_SIZE;
+ a_list[n++] = bitcount(vi->red_mask);
+ a_list[n++] = GLX_GREEN_SIZE;
+ a_list[n++] = bitcount(vi->green_mask);
+ a_list[n++] = GLX_BLUE_SIZE;
+ a_list[n++] = bitcount(vi->blue_mask);
+ glXGetConfig(display, vi, GLX_ALPHA_SIZE, &val);
+ a_list[n++] = GLX_ALPHA_SIZE;
+ a_list[n++] = val;
+ } else { // Color index visual
+ glXGetConfig(display, vi, GLX_BUFFER_SIZE, &val);
+ a_list[n++] = GLX_BUFFER_SIZE;
+ a_list[n++] = val;
+ }
+ a_list[n] = None;
+ XFree(vi);
+ vi = glXChooseVisual(display, DefaultScreen(display), a_list);
+ if(!vi) return;
#endif /* OLD_MESA */
}
{
wxColour *the_colour = wxTheColourDatabase->FindColour(col);
if(the_colour) {
- GLboolean b;
- glGetBooleanv(GL_RGBA_MODE, &b);
- if(b) {
- glColor3ub(the_colour->Red(),
- the_colour->Green(),
- the_colour->Blue());
- } else {
- GLint pix = (GLint)the_colour->m_pixel;
- if(pix == -1) {
- XColor exact_def;
- exact_def.red = (unsigned short)the_colour->Red() << 8;
- exact_def.green = (unsigned short)the_colour->Green() << 8;
- exact_def.blue = (unsigned short)the_colour->Blue() << 8;
- exact_def.flags = DoRed | DoGreen | DoBlue;
- if(!XAllocColor((Display*) GetXDisplay(), (Colormap) wxTheApp->GetMainColormap(GetXDisplay()), &exact_def)) {
- wxDebugMsg("wxGLCanvas: cannot allocate color\n");
- return;
- }
- pix = the_colour->m_pixel = exact_def.pixel;
- }
- glIndexi(pix);
- }
+ GLboolean b;
+ glGetBooleanv(GL_RGBA_MODE, &b);
+ if(b) {
+ glColor3ub(the_colour->Red(),
+ the_colour->Green(),
+ the_colour->Blue());
+ } else {
+ GLint pix = (GLint)the_colour->m_pixel;
+ if(pix == -1) {
+ XColor exact_def;
+ exact_def.red = (unsigned short)the_colour->Red() << 8;
+ exact_def.green = (unsigned short)the_colour->Green() << 8;
+ exact_def.blue = (unsigned short)the_colour->Blue() << 8;
+ exact_def.flags = DoRed | DoGreen | DoBlue;
+ if(!XAllocColor((Display*) GetXDisplay(), (Colormap) wxTheApp->GetMainColormap(GetXDisplay()), &exact_def)) {
+ wxDebugMsg("wxGLCanvas: cannot allocate color\n");
+ return;
+ }
+ pix = the_colour->m_pixel = exact_def.pixel;
+ }
+ glIndexi(pix);
+ }
}
}
wxGLContext::wxGLContext(
bool isRGB, wxGLCanvas *win,
const wxPalette& palette,
- const wxGLContext *other /* for sharing display lists */
-)
+ const wxGLContext *other /* for sharing display lists */
+ )
{
- m_window = win;
+ m_window = win;
- m_hDC = win->GetHDC();
+ m_hDC = win->GetHDC();
- m_glContext = wglCreateContext((HDC) m_hDC);
- wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGl context") );
+ m_glContext = wglCreateContext((HDC) m_hDC);
+ wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGl context") );
- if( other != 0 )
- wglShareLists( other->m_glContext, m_glContext );
+ if( other != 0 )
+ wglShareLists( other->m_glContext, m_glContext );
- wglMakeCurrent((HDC) m_hDC, m_glContext);
+ wglMakeCurrent((HDC) m_hDC, m_glContext);
}
wxGLContext::~wxGLContext()
if (m_glContext)
{
wglMakeCurrent(NULL, NULL);
- wglDeleteContext(m_glContext);
+ wglDeleteContext(m_glContext);
}
}
wglMakeCurrent((HDC) m_hDC, m_glContext);
}
-/*
- setupPixelFormat(hDC);
- setupPalette(hDC);
-*/
+ /*
+ setupPixelFormat(hDC);
+ setupPalette(hDC);
+ */
}
void wxGLContext::SetColour(const char *colour)
wxGLCanvas::wxGLCanvas(wxWindow *parent, wxWindowID id,
const wxPoint& pos, const wxSize& size, long style, const wxString& name,
- int *attribList /* not used yet! */, const wxPalette& palette):
- wxScrolledWindow()
+ int *attribList, const wxPalette& palette) : wxScrolledWindow()
{
- m_glContext = (wxGLContext*) NULL;
+ m_glContext = (wxGLContext*) NULL;
- bool ret = Create(parent, id, pos, size, style, name);
+ bool ret = Create(parent, id, pos, size, style, name);
- if ( ret )
- {
- SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
- SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
- }
+ if ( ret )
+ {
+ SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
+ SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
+ }
- m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
+ m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
- SetupPixelFormat();
- SetupPalette(palette);
+ SetupPixelFormat(attribList);
+ SetupPalette(palette);
- m_glContext = new wxGLContext(TRUE, this, palette);
+ m_glContext = new wxGLContext(TRUE, this, palette);
}
wxGLCanvas::wxGLCanvas( wxWindow *parent,
int *attribList, const wxPalette& palette )
: wxScrolledWindow()
{
- m_glContext = (wxGLContext*) NULL;
+ m_glContext = (wxGLContext*) NULL;
- bool ret = Create(parent, id, pos, size, style, name);
+ bool ret = Create(parent, id, pos, size, style, name);
- if ( ret )
- {
- SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
- SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
- }
+ if ( ret )
+ {
+ SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
+ SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
+ }
- m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
+ m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
- SetupPixelFormat();
- SetupPalette(palette);
+ SetupPixelFormat(attribList);
+ SetupPalette(palette);
- m_glContext = new wxGLContext(TRUE, this, palette, shared );
+ m_glContext = new wxGLContext(TRUE, this, palette, shared );
}
// Not very useful for wxMSW, but this is to be wxGTK compliant
int *attribList, const wxPalette& palette ):
wxScrolledWindow()
{
- m_glContext = (wxGLContext*) NULL;
+ m_glContext = (wxGLContext*) NULL;
- bool ret = Create(parent, id, pos, size, style, name);
+ bool ret = Create(parent, id, pos, size, style, name);
- if ( ret )
- {
- SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
- SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
- }
+ if ( ret )
+ {
+ SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
+ SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
+ }
- m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
+ m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
- SetupPixelFormat();
- SetupPalette(palette);
+ SetupPixelFormat(attribList);
+ SetupPalette(palette);
- wxGLContext *sharedContext=0;
- if (shared) sharedContext=shared->GetContext();
- m_glContext = new wxGLContext(TRUE, this, palette, sharedContext );
+ wxGLContext *sharedContext=0;
+ if (shared) sharedContext=shared->GetContext();
+ m_glContext = new wxGLContext(TRUE, this, palette, sharedContext );
}
wxGLCanvas::~wxGLCanvas()
bool wxGLCanvas::Create(wxWindow *parent, wxWindowID id,
const wxPoint& pos, const wxSize& size, long style, const wxString& name)
{
-/* Suggestion from Kelly Brock <kbrock@8cs.com> (not yet implemented):
+ /*
+ Suggestion from Kelly Brock <kbrock@8cs.com> (not yet implemented):
-OpenGL corruption fix is simple assuming it doesn't screw anything else
-up. Add the following line to the top of the create function:
- wxSize parentSize = GetClientSize();
- All locations within the function that use 'size' are changed to
-'parentSize'.
- The above corrects the initial display corruption with the GeForce and
-TNT2, not sure about other NVidia cards yet.
-*/
+ OpenGL corruption fix is simple assuming it doesn't screw anything else
+ up. Add the following line to the top of the create function:
+
+ wxSize parentSize = GetClientSize();
- static bool registeredGLCanvasClass = FALSE;
+ All locations within the function that use 'size' are changed to
+ 'parentSize'.
+ The above corrects the initial display corruption with the GeForce and
+ TNT2, not sure about other NVidia cards yet.
+ */
- // We have to register a special window class because we need
- // the CS_OWNDC style for GLCanvas.
+ static bool registeredGLCanvasClass = FALSE;
-/*
- From Angel Popov <jumpo@bitex.com>
+ // We have to register a special window class because we need
+ // the CS_OWNDC style for GLCanvas.
- Here are two snips from a dicussion in the OpenGL Gamedev list that explains
- how this problem can be fixed:
+ /*
+ From Angel Popov <jumpo@bitex.com>
- "There are 5 common DCs available in Win95. These are aquired when you call
- GetDC or GetDCEx from a window that does _not_ have the OWNDC flag.
- OWNDC flagged windows do not get their DC from the common DC pool, the issue
- is they require 800 bytes each from the limited 64Kb local heap for GDI."
+ Here are two snips from a dicussion in the OpenGL Gamedev list that explains
+ how this problem can be fixed:
- "The deal is, if you hold onto one of the 5 shared DC's too long (as GL apps
- do), Win95 will actually "steal" it from you. MakeCurrent fails,
- apparently, because Windows re-assigns the HDC to a different window. The
- only way to prevent this, the only reliable means, is to set CS_OWNDC."
-*/
+ "There are 5 common DCs available in Win95. These are aquired when you call
+ GetDC or GetDCEx from a window that does _not_ have the OWNDC flag.
+ OWNDC flagged windows do not get their DC from the common DC pool, the issue
+ is they require 800 bytes each from the limited 64Kb local heap for GDI."
- if (!registeredGLCanvasClass)
- {
- WNDCLASS wndclass;
-
- static const long styleNormal = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS | CS_OWNDC;
-
- // the fields which are common to all classes
- wndclass.lpfnWndProc = (WNDPROC)wxWndProc;
- wndclass.cbClsExtra = 0;
- wndclass.cbWndExtra = sizeof( DWORD ); // VZ: what is this DWORD used for?
- wndclass.hInstance = wxhInstance;
- wndclass.hIcon = (HICON) NULL;
- wndclass.hCursor = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW);
- wndclass.lpszMenuName = NULL;
-
- // Register the GLCanvas class name
- wndclass.hbrBackground = (HBRUSH)NULL;
- wndclass.lpszClassName = wxGLCanvasClassName;
- wndclass.style = styleNormal;
-
- if ( !RegisterClass(&wndclass) )
- {
- wxLogLastError(wxT("RegisterClass(wxGLCanvasClass)"));
-
- return FALSE;
- }
- registeredGLCanvasClass = TRUE;
- }
+ "The deal is, if you hold onto one of the 5 shared DC's too long (as GL apps
+ do), Win95 will actually "steal" it from you. MakeCurrent fails,
+ apparently, because Windows re-assigns the HDC to a different window. The
+ only way to prevent this, the only reliable means, is to set CS_OWNDC."
+ */
- wxCHECK_MSG( parent, FALSE, wxT("can't create wxWindow without parent") );
+ if (!registeredGLCanvasClass)
+ {
+ WNDCLASS wndclass;
- if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
- return FALSE;
+ static const long styleNormal = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS | CS_OWNDC;
- parent->AddChild(this);
+ // the fields which are common to all classes
+ wndclass.lpfnWndProc = (WNDPROC)wxWndProc;
+ wndclass.cbClsExtra = 0;
+ wndclass.cbWndExtra = sizeof( DWORD ); // VZ: what is this DWORD used for?
+ wndclass.hInstance = wxhInstance;
+ wndclass.hIcon = (HICON) NULL;
+ wndclass.hCursor = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW);
+ wndclass.lpszMenuName = NULL;
- DWORD msflags = 0;
- if ( style & wxBORDER )
- msflags |= WS_BORDER;
- if ( style & wxTHICK_FRAME )
- msflags |= WS_THICKFRAME;
+ // Register the GLCanvas class name
+ wndclass.hbrBackground = (HBRUSH)NULL;
+ wndclass.lpszClassName = wxGLCanvasClassName;
+ wndclass.style = styleNormal;
-/*
- A general rule with OpenGL and Win32 is that any window that will have a
- HGLRC built for it must have two flags: WS_CLIPCHILDREN & WS_CLIPSIBLINGS.
- You can find references about this within the knowledge base and most OpenGL
- books that contain the wgl function descriptions.
-*/
-
- msflags |= WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS;
-// if ( style & wxCLIP_CHILDREN )
-// msflags |= WS_CLIPCHILDREN;
- msflags |= WS_CLIPCHILDREN;
-
- bool want3D;
- WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
-
- // Even with extended styles, need to combine with WS_BORDER
- // for them to look right.
- if ( want3D || (m_windowStyle & wxSIMPLE_BORDER) || (m_windowStyle & wxRAISED_BORDER ) ||
- (m_windowStyle & wxSUNKEN_BORDER) || (m_windowStyle & wxDOUBLE_BORDER))
+ if ( !RegisterClass(&wndclass) )
{
- msflags |= WS_BORDER;
+ wxLogLastError(wxT("RegisterClass(wxGLCanvasClass)"));
+ return FALSE;
}
- // calculate the value to return from WM_GETDLGCODE handler
- if ( GetWindowStyleFlag() & wxWANTS_CHARS )
- {
- // want everything: i.e. all keys and WM_CHAR message
- m_lDlgCode = DLGC_WANTARROWS | DLGC_WANTCHARS |
- DLGC_WANTTAB | DLGC_WANTMESSAGE;
- }
+ registeredGLCanvasClass = TRUE;
+ }
- MSWCreate(m_windowId, parent, wxGLCanvasClassName, this, NULL,
- pos.x, pos.y,
- WidthDefault(size.x), HeightDefault(size.y),
- msflags, NULL, exStyle);
-
- return TRUE;
-
-}
-
-void wxGLCanvas::SetupPixelFormat() // (HDC hDC)
-{
- PIXELFORMATDESCRIPTOR pfd = {
- sizeof(PIXELFORMATDESCRIPTOR), /* size */
- 1, /* version */
- PFD_SUPPORT_OPENGL |
- PFD_DRAW_TO_WINDOW |
- PFD_DOUBLEBUFFER, /* support double-buffering */
- PFD_TYPE_RGBA, /* color type */
- 16, /* prefered color depth */
- 0, 0, 0, 0, 0, 0, /* color bits (ignored) */
- 0, /* no alpha buffer */
- 0, /* alpha bits (ignored) */
- 0, /* no accumulation buffer */
- 0, 0, 0, 0, /* accum bits (ignored) */
- 16, /* depth buffer */
- 0, /* no stencil buffer */
- 0, /* no auxiliary buffers */
- PFD_MAIN_PLANE, /* main layer */
- 0, /* reserved */
- 0, 0, 0, /* no layer, visible, damage masks */
- };
- int pixelFormat;
-
- pixelFormat = ChoosePixelFormat((HDC) m_hDC, &pfd);
- if (pixelFormat == 0) {
- MessageBox(WindowFromDC((HDC) m_hDC), wxT("ChoosePixelFormat failed."), wxT("Error"),
- MB_ICONERROR | MB_OK);
- exit(1);
- }
+ wxCHECK_MSG( parent, FALSE, wxT("can't create wxWindow without parent") );
+
+ if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
+ return FALSE;
+
+ parent->AddChild(this);
+
+ DWORD msflags = 0;
+ if ( style & wxBORDER )
+ msflags |= WS_BORDER;
+ if ( style & wxTHICK_FRAME )
+ msflags |= WS_THICKFRAME;
+
+ /*
+ A general rule with OpenGL and Win32 is that any window that will have a
+ HGLRC built for it must have two flags: WS_CLIPCHILDREN & WS_CLIPSIBLINGS.
+ You can find references about this within the knowledge base and most OpenGL
+ books that contain the wgl function descriptions.
+ */
- if (SetPixelFormat((HDC) m_hDC, pixelFormat, &pfd) != TRUE) {
- MessageBox(WindowFromDC((HDC) m_hDC), wxT("SetPixelFormat failed."), wxT("Error"),
- MB_ICONERROR | MB_OK);
- exit(1);
+ msflags |= WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS;
+ // if ( style & wxCLIP_CHILDREN )
+ // msflags |= WS_CLIPCHILDREN;
+ msflags |= WS_CLIPCHILDREN;
+
+ bool want3D;
+ WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
+
+ // Even with extended styles, need to combine with WS_BORDER
+ // for them to look right.
+ if ( want3D || (m_windowStyle & wxSIMPLE_BORDER) || (m_windowStyle & wxRAISED_BORDER ) ||
+ (m_windowStyle & wxSUNKEN_BORDER) || (m_windowStyle & wxDOUBLE_BORDER))
+ {
+ msflags |= WS_BORDER;
+ }
+
+ // calculate the value to return from WM_GETDLGCODE handler
+ if ( GetWindowStyleFlag() & wxWANTS_CHARS )
+ {
+ // want everything: i.e. all keys and WM_CHAR message
+ m_lDlgCode = DLGC_WANTARROWS | DLGC_WANTCHARS |
+ DLGC_WANTTAB | DLGC_WANTMESSAGE;
+ }
+
+ MSWCreate(m_windowId, parent, wxGLCanvasClassName, this, NULL,
+ pos.x, pos.y,
+ WidthDefault(size.x), HeightDefault(size.y),
+ msflags, NULL, exStyle);
+
+ return TRUE;
+}
+
+void wxGLCanvas::SetupPixelFormat(int *attribList) // (HDC hDC)
+{
+ int pixelFormat;
+ PIXELFORMATDESCRIPTOR pfd = {
+ sizeof(PIXELFORMATDESCRIPTOR), /* size */
+ 1, /* version */
+ PFD_SUPPORT_OPENGL |
+ PFD_DRAW_TO_WINDOW |
+ PFD_DOUBLEBUFFER, /* support double-buffering */
+ PFD_TYPE_RGBA, /* color type */
+ 16, /* prefered color depth */
+ 0, 0, 0, 0, 0, 0, /* color bits (ignored) */
+ 0, /* no alpha buffer */
+ 0, /* alpha bits (ignored) */
+ 0, /* no accumulation buffer */
+ 0, 0, 0, 0, /* accum bits (ignored) */
+ 16, /* depth buffer */
+ 0, /* no stencil buffer */
+ 0, /* no auxiliary buffers */
+ PFD_MAIN_PLANE, /* main layer */
+ 0, /* reserved */
+ 0, 0, 0, /* no layer, visible, damage masks */
+ };
+
+ if (attribList) {
+ pfd.dwFlags &= ~PFD_DOUBLEBUFFER;
+ pfd.iPixelType = PFD_TYPE_COLORINDEX;
+ pfd.cColorBits = 0;
+ int arg=0;
+
+ while( (attribList[arg]!=0) )
+ {
+ switch( attribList[arg++] )
+ {
+ case WX_GL_RGBA:
+ pfd.iPixelType = PFD_TYPE_RGBA;
+ break;
+ case WX_GL_BUFFER_SIZE:
+ pfd.cColorBits = attribList[arg++];
+ break;
+ case WX_GL_LEVEL:
+ // this member looks like it may be obsolete
+ if (attribList[arg] > 0) {
+ pfd.iLayerType = PFD_OVERLAY_PLANE;
+ } else if (attribList[arg] < 0) {
+ pfd.iLayerType = PFD_UNDERLAY_PLANE;
+ } else {
+ pfd.iLayerType = PFD_MAIN_PLANE;
+ }
+ arg++;
+ break;
+ case WX_GL_DOUBLEBUFFER:
+ pfd.dwFlags |= PFD_DOUBLEBUFFER;
+ break;
+ case WX_GL_STEREO:
+ pfd.dwFlags |= PFD_STEREO;
+ break;
+ case WX_GL_AUX_BUFFERS:
+ pfd.cAuxBuffers = attribList[arg++];
+ break;
+ case WX_GL_MIN_RED:
+ pfd.cColorBits += (pfd.cRedBits = attribList[arg++]);
+ break;
+ case WX_GL_MIN_GREEN:
+ pfd.cColorBits += (pfd.cGreenBits = attribList[arg++]);
+ break;
+ case WX_GL_MIN_BLUE:
+ pfd.cColorBits += (pfd.cBlueBits = attribList[arg++]);
+ break;
+ case WX_GL_MIN_ALPHA:
+ // doesn't count in cColorBits
+ pfd.cAlphaBits = attribList[arg++];
+ break;
+ case WX_GL_DEPTH_SIZE:
+ pfd.cDepthBits = attribList[arg++];
+ break;
+ case WX_GL_STENCIL_SIZE:
+ pfd.cStencilBits = attribList[arg++];
+ break;
+ case WX_GL_MIN_ACCUM_RED:
+ pfd.cAccumBits += (pfd.cAccumRedBits = attribList[arg++]);
+ break;
+ case WX_GL_MIN_ACCUM_GREEN:
+ pfd.cAccumBits += (pfd.cAccumGreenBits = attribList[arg++]);
+ break;
+ case WX_GL_MIN_ACCUM_BLUE:
+ pfd.cAccumBits += (pfd.cAccumBlueBits = attribList[arg++]);
+ break;
+ case WX_GL_MIN_ACCUM_ALPHA:
+ pfd.cAccumBits += (pfd.cAccumAlphaBits = attribList[arg++]);
+ break;
+ default:
+ break;
+ }
}
+ }
+ pixelFormat = ChoosePixelFormat((HDC) m_hDC, &pfd);
+ if (pixelFormat == 0) {
+ MessageBox(WindowFromDC((HDC) m_hDC), wxT("ChoosePixelFormat failed."), wxT("Error"),
+ MB_ICONERROR | MB_OK);
+ exit(1);
+ }
+
+ if (SetPixelFormat((HDC) m_hDC, pixelFormat, &pfd) != TRUE) {
+ MessageBox(WindowFromDC((HDC) m_hDC), wxT("SetPixelFormat failed."), wxT("Error"),
+ MB_ICONERROR | MB_OK);
+ exit(1);
+ }
}
void wxGLCanvas::SetupPalette(const wxPalette& palette)
DescribePixelFormat((HDC) m_hDC, pixelFormat, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
- paletteSize = 1 << pfd.cColorBits;
+ paletteSize = 1 << pfd.cColorBits;
LOGPALETTE* pPal =
(LOGPALETTE*) malloc(sizeof(LOGPALETTE) + paletteSize * sizeof(PALETTEENTRY));
// So we need wxFrame to call OnQueryNewPalette for all children...
void wxGLCanvas::OnQueryNewPalette(wxQueryNewPaletteEvent& event)
{
- /* realize palette if this is the current window */
- if ( GetPalette()->Ok() ) {
- ::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE());
- ::SelectPalette((HDC) GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE);
- ::RealizePalette((HDC) GetHDC());
- Refresh();
- event.SetPaletteRealized(TRUE);
- }
- else
- event.SetPaletteRealized(FALSE);
+ /* realize palette if this is the current window */
+ if ( GetPalette()->Ok() ) {
+ ::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE());
+ ::SelectPalette((HDC) GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE);
+ ::RealizePalette((HDC) GetHDC());
+ Refresh();
+ event.SetPaletteRealized(TRUE);
+ }
+ else
+ event.SetPaletteRealized(FALSE);
}
// I think this doesn't have to be propagated to child windows.
void wxGLCanvas::OnPaletteChanged(wxPaletteChangedEvent& event)
{
- /* realize palette if this is *not* the current window */
- if ( GetPalette() &&
+ /* realize palette if this is *not* the current window */
+ if ( GetPalette() &&
GetPalette()->Ok() && (this != event.GetChangedWindow()) )
- {
- ::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE());
- ::SelectPalette((HDC) GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE);
- ::RealizePalette((HDC) GetHDC());
- Refresh();
- }
+ {
+ ::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE());
+ ::SelectPalette((HDC) GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE);
+ ::RealizePalette((HDC) GetHDC());
+ Refresh();
+ }
}
/* Give extensions proper function names. */
void glNormalPointerEXT(GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer)
{
#ifdef GL_EXT_vertex_array
- static PFNGLNORMALPOINTEREXTPROC proc = 0;
+ static PFNGLNORMALPOINTEREXTPROC proc = 0;
- if ( !proc )
- {
- proc = (PFNGLNORMALPOINTEREXTPROC) wglGetProcAddress("glNormalPointerEXT");
- }
+ if ( !proc )
+ {
+ proc = (PFNGLNORMALPOINTEREXTPROC) wglGetProcAddress("glNormalPointerEXT");
+ }
- if ( proc )
- (* proc) (type, stride, count, pointer);
+ if ( proc )
+ (* proc) (type, stride, count, pointer);
#endif
}
void glVertexPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer)
{
#ifdef GL_EXT_vertex_array
- static PFNGLVERTEXPOINTEREXTPROC proc = 0;
-
- if ( !proc )
- {
- proc = (PFNGLVERTEXPOINTEREXTPROC) wglGetProcAddress("glVertexPointerEXT");
- }
+ static PFNGLVERTEXPOINTEREXTPROC proc = 0;
- if ( proc )
- (* proc) (size, type, stride, count, pointer);
+ if ( !proc )
+ {
+ proc = (PFNGLVERTEXPOINTEREXTPROC) wglGetProcAddress("glVertexPointerEXT");
+ }
+ if ( proc )
+ (* proc) (size, type, stride, count, pointer);
#endif
}
projects / wxWidgets.git / commitdiff
