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check framebuffer properties for match when creating pbuffer

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This commit is contained in:
David Rose 2004-02-18 15:18:51 +00:00
parent 31cc2f4d8f
commit dba1064551
3 changed files with 59 additions and 3 deletions
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8
panda/src/wgldisplay/wglGraphicsBuffer.cxx
View File

@ -264,7 +264,7 @@ open_buffer() {
<< "Created PBuffer " << _pbuffer << ", DC " << _pbuffer_dc << "\n";
wglMakeCurrent(_pbuffer_dc, wglgsg->get_context(_pbuffer_dc));
wglgsg->report_gl_errors();
wglgsg->report_my_gl_errors();
// Now that the pbuffer is created, we don't need the window any
// more.
@ -400,6 +400,12 @@ make_pbuffer() {
iattrib_list[ni++] = WGL_STENCIL_BITS_ARB;
iattrib_list[ni++] = pfd.cStencilBits;
// Match up properties.
iattrib_list[ni++] = WGL_DOUBLE_BUFFER_ARB;
iattrib_list[ni++] = ((pfd.dwFlags & PFD_DOUBLEBUFFER) != 0);
iattrib_list[ni++] = WGL_STEREO_ARB;
iattrib_list[ni++] = ((pfd.dwFlags & PFD_STEREO) != 0);
// Terminate the lists.
nassertr(ni < max_attrib_list && nf < max_attrib_list, NULL);
iattrib_list[ni] = 0;

53
panda/src/wgldisplay/wglGraphicsPipe.cxx
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@ -277,8 +277,8 @@ find_pixfmtnum(FrameBufferProperties &properties, HDC hdc,
<< "stencil = " << (int)(pfd.cStencilBits) << "\n";
}
wgldisplay_cat.debug()
<< "flags = " << hex << (int)(pfd.dwFlags) << " (missing "
<< (int)((~pfd.dwFlags) & dwReqFlags) << dec << ")\n";
<< "flags = " << format_pfd_flags(pfd.dwFlags) << " (missing "
<< format_pfd_flags((~pfd.dwFlags) & dwReqFlags) << ")\n";
}
if ((frame_buffer_mode & FrameBufferProperties::FM_alpha) != 0 &&
@ -360,3 +360,52 @@ find_pixfmtnum(FrameBufferProperties &properties, HDC hdc,
return found_pfnum;
}
////////////////////////////////////////////////////////////////////
// Function: wglGraphicsPipe::format_pfd_flags
// Access: Private, Static
// Description: Returns pfd_flags formatted as a string in a
// user-friendly way.
////////////////////////////////////////////////////////////////////
string wglGraphicsPipe::
format_pfd_flags(DWORD pfd_flags) {
struct FlagDef {
DWORD flag;
const char *name;
};
static FlagDef flag_def[] = {
{ PFD_DRAW_TO_WINDOW, "PFD_DRAW_TO_WINDOW" },
{ PFD_DRAW_TO_BITMAP, "PFD_DRAW_TO_BITMAP" },
{ PFD_SUPPORT_GDI, "PFD_SUPPORT_GDI" },
{ PFD_SUPPORT_OPENGL, "PFD_SUPPORT_OPENGL" },
{ PFD_GENERIC_ACCELERATED, "PFD_GENERIC_ACCELERATED" },
{ PFD_GENERIC_FORMAT, "PFD_GENERIC_FORMAT" },
{ PFD_NEED_PALETTE, "PFD_NEED_PALETTE" },
{ PFD_NEED_SYSTEM_PALETTE, "PFD_NEED_SYSTEM_PALETTE" },
{ PFD_DOUBLEBUFFER, "PFD_DOUBLEBUFFER" },
{ PFD_STEREO, "PFD_STEREO" },
{ PFD_SWAP_LAYER_BUFFERS, "PFD_SWAP_LAYER_BUFFERS" },
{ PFD_SWAP_COPY, "PFD_SWAP_COPY" },
{ PFD_SWAP_EXCHANGE, "PFD_SWAP_EXCHANGE" },
};
static const int num_flag_defs = sizeof(flag_def) / sizeof(FlagDef);
ostringstream out;
const char *sep = "";
bool got_any = false;
for (int i = 0; i < num_flag_defs; i++) {
if (pfd_flags & flag_def[i].flag) {
out << sep << flag_def[i].name;
pfd_flags &= ~flag_def[i].flag;
sep = "|";
got_any = true;
}
}
if (pfd_flags != 0 || !got_any) {
out << sep << hex << "0x" << pfd_flags << dec;
}
return out.str();
}

1
panda/src/wgldisplay/wglGraphicsPipe.h
View File

@ -45,6 +45,7 @@ private:
static int choose_pfnum(FrameBufferProperties &properties, HDC hdc);
static int find_pixfmtnum(FrameBufferProperties &properties, HDC hdc,
bool bLookforHW);
static string format_pfd_flags(DWORD pfd_flags);
public:
static TypeHandle get_class_type() {