diff options
Diffstat (limited to 'src/net/java/games')
| -rw-r--r-- | src/net/java/games/jogl/impl/windows/WindowsGLContext.java | 85 |
1 files changed, 48 insertions, 37 deletions
diff --git a/src/net/java/games/jogl/impl/windows/WindowsGLContext.java b/src/net/java/games/jogl/impl/windows/WindowsGLContext.java index eed383794..86f6debfb 100644 --- a/src/net/java/games/jogl/impl/windows/WindowsGLContext.java +++ b/src/net/java/games/jogl/impl/windows/WindowsGLContext.java @@ -302,6 +302,8 @@ public abstract class WindowsGLContext extends GLContext { freeWGLC = true; } } + // Fallback path for older cards, in particular Intel Extreme motherboard graphics + boolean gotAvailableCaps = false; if (dummyGL != null && haveWGLChoosePixelFormatARB) { int[] iattributes = new int [2 * MAX_ATTRIBS]; int[] iresults = new int [2 * MAX_ATTRIBS]; @@ -408,46 +410,54 @@ public abstract class WindowsGLContext extends GLContext { // window, to a pbuffer, or to a pixmap) niattribs = 0; iattributes[0] = GL.WGL_NUMBER_PIXEL_FORMATS_ARB; - if (!dummyGL.wglGetPixelFormatAttribivARB(hdc, 0, 0, 1, iattributes, iresults)) { - throw new GLException("Unable to enumerate pixel formats of window using wglGetPixelFormatAttribivARB: " + WGL.GetLastError()); - } - numFormats = iresults[0]; - // Should we be filtering out the pixel formats which aren't - // applicable, as we are doing here? - // We don't have enough information in the GLCapabilities to - // represent those that aren't... - iattributes[niattribs++] = GL.WGL_DRAW_TO_WINDOW_ARB; - iattributes[niattribs++] = GL.WGL_ACCELERATION_ARB; - iattributes[niattribs++] = GL.WGL_SUPPORT_OPENGL_ARB; - iattributes[niattribs++] = GL.WGL_DEPTH_BITS_ARB; - iattributes[niattribs++] = GL.WGL_STENCIL_BITS_ARB; - iattributes[niattribs++] = GL.WGL_DOUBLE_BUFFER_ARB; - iattributes[niattribs++] = GL.WGL_STEREO_ARB; - iattributes[niattribs++] = GL.WGL_PIXEL_TYPE_ARB; - iattributes[niattribs++] = GL.WGL_RED_BITS_ARB; - iattributes[niattribs++] = GL.WGL_GREEN_BITS_ARB; - iattributes[niattribs++] = GL.WGL_BLUE_BITS_ARB; - iattributes[niattribs++] = GL.WGL_ALPHA_BITS_ARB; - iattributes[niattribs++] = GL.WGL_ACCUM_RED_BITS_ARB; - iattributes[niattribs++] = GL.WGL_ACCUM_GREEN_BITS_ARB; - iattributes[niattribs++] = GL.WGL_ACCUM_BLUE_BITS_ARB; - iattributes[niattribs++] = GL.WGL_ACCUM_ALPHA_BITS_ARB; - if (haveWGLARBMultisample) { - iattributes[niattribs++] = GL.WGL_SAMPLE_BUFFERS_ARB; - iattributes[niattribs++] = GL.WGL_SAMPLES_ARB; - } + if (dummyGL.wglGetPixelFormatAttribivARB(hdc, 0, 0, 1, iattributes, iresults)) { + numFormats = iresults[0]; + // Should we be filtering out the pixel formats which aren't + // applicable, as we are doing here? + // We don't have enough information in the GLCapabilities to + // represent those that aren't... + iattributes[niattribs++] = GL.WGL_DRAW_TO_WINDOW_ARB; + iattributes[niattribs++] = GL.WGL_ACCELERATION_ARB; + iattributes[niattribs++] = GL.WGL_SUPPORT_OPENGL_ARB; + iattributes[niattribs++] = GL.WGL_DEPTH_BITS_ARB; + iattributes[niattribs++] = GL.WGL_STENCIL_BITS_ARB; + iattributes[niattribs++] = GL.WGL_DOUBLE_BUFFER_ARB; + iattributes[niattribs++] = GL.WGL_STEREO_ARB; + iattributes[niattribs++] = GL.WGL_PIXEL_TYPE_ARB; + iattributes[niattribs++] = GL.WGL_RED_BITS_ARB; + iattributes[niattribs++] = GL.WGL_GREEN_BITS_ARB; + iattributes[niattribs++] = GL.WGL_BLUE_BITS_ARB; + iattributes[niattribs++] = GL.WGL_ALPHA_BITS_ARB; + iattributes[niattribs++] = GL.WGL_ACCUM_RED_BITS_ARB; + iattributes[niattribs++] = GL.WGL_ACCUM_GREEN_BITS_ARB; + iattributes[niattribs++] = GL.WGL_ACCUM_BLUE_BITS_ARB; + iattributes[niattribs++] = GL.WGL_ACCUM_ALPHA_BITS_ARB; + if (haveWGLARBMultisample) { + iattributes[niattribs++] = GL.WGL_SAMPLE_BUFFERS_ARB; + iattributes[niattribs++] = GL.WGL_SAMPLES_ARB; + } - availableCaps = new GLCapabilities[numFormats]; - for (int i = 0; i < numFormats; i++) { - if (!dummyGL.wglGetPixelFormatAttribivARB(hdc, i+1, 0, niattribs, iattributes, iresults)) { - throw new GLException("Error getting pixel format attributes for pixel format " + (i + 1) + " of device context"); + availableCaps = new GLCapabilities[numFormats]; + for (int i = 0; i < numFormats; i++) { + if (!dummyGL.wglGetPixelFormatAttribivARB(hdc, i+1, 0, niattribs, iattributes, iresults)) { + throw new GLException("Error getting pixel format attributes for pixel format " + (i + 1) + " of device context"); + } + availableCaps[i] = iattributes2GLCapabilities(iattributes, iresults, niattribs, true); + } + if( freeWGLC ) { + WGL.wglMakeCurrent( 0, 0 ); + } + gotAvailableCaps = true; + } else { + int lastErr = WGL.GetLastError(); + // Intel Extreme graphics fails with a zero error code + if (lastErr != 0) { + throw new GLException("Unable to enumerate pixel formats of window using wglGetPixelFormatAttribivARB: error code " + WGL.GetLastError()); } - availableCaps[i] = iattributes2GLCapabilities(iattributes, iresults, niattribs, true); - } - if( freeWGLC ) { - WGL.wglMakeCurrent( 0, 0 ); } - } else { + } + + if (!gotAvailableCaps) { if (DEBUG) { System.err.println("Using ChoosePixelFormat because no wglChoosePixelFormatARB: dummyGL = " + dummyGL); } @@ -467,6 +477,7 @@ public abstract class WindowsGLContext extends GLContext { availableCaps[i] = pfd2GLCapabilities(pfd); } } + // Supply information to chooser pixelFormat = chooser.chooseCapabilities(capabilities, availableCaps, recommendedPixelFormat); if ((pixelFormat < 0) || (pixelFormat >= numFormats)) { |