libufo-commits

[Johannes S. <sch...@us...>]

Update of /cvsroot/libufo/ufo-0.5/src/gl
In directory sc8-pr-cvs6.sourceforge.net:/tmp/cvs-serv21924/src/gl

Modified Files:
	ugl_graphics.cpp 
Log Message:
Added workaround for a MESA (6.4.*) bug in glPopClientAttrib.

Index: ugl_graphics.cpp
===================================================================
RCS file: /cvsroot/libufo/ufo-0.5/src/gl/ugl_graphics.cpp,v
retrieving revision 1.20
retrieving revision 1.21
diff -C2 -d -r1.20 -r1.21
*** ugl_graphics.cpp	11 Apr 2006 12:34:36 -0000	1.20
--- ugl_graphics.cpp	17 Sep 2006 14:25:17 -0000	1.21
***************
*** 488,502 ****
  		break;
  	}
  	if (buffer->getType() == UVertexArray::V3F) {
  		ugl_driver->glInterleavedArrays(GL_V3F, 0, buffer->getArray());
  		ugl_driver->glDrawArrays(glType, 0, buffer->getCount());
  	} else if (buffer->getType() == UVertexArray::C3F_V3F) {
  		// we use color arrays ...
! 		ugl_driver->glPushClientAttrib(GL_CLIENT_VERTEX_ARRAY_BIT);
  		ugl_driver->glShadeModel(GL_SMOOTH);
  		ugl_driver->glInterleavedArrays(GL_C3F_V3F, 0, buffer->getArray());
  		ugl_driver->glDrawArrays(glType, 0, buffer->getCount());
  		ugl_driver->glShadeModel(GL_FLAT);
! 		ugl_driver->glPopClientAttrib();
  	}
  			ugl_driver->glTranslatef(-ufo_line_add, -ufo_line_add, 0);
--- 488,519 ----
  		break;
  	}
+ 	// workaround for buggy glPopClientAttrib in MESA 6.4.*
+ 	GLboolean vertexArrayWasEnabled = false;
+ 	GLboolean colorArrayWasEnabled = false;
+ 	ugl_driver->glGetBooleanv(GL_VERTEX_ARRAY, &vertexArrayWasEnabled);
+ 	ugl_driver->glGetBooleanv(GL_COLOR_ARRAY, &colorArrayWasEnabled);
  	if (buffer->getType() == UVertexArray::V3F) {
+ 		ugl_driver->glEnableClientState(GL_VERTEX_ARRAY);
  		ugl_driver->glInterleavedArrays(GL_V3F, 0, buffer->getArray());
  		ugl_driver->glDrawArrays(glType, 0, buffer->getCount());
+ 		if (!vertexArrayWasEnabled) {
+ 			ugl_driver->glDisableClientState(GL_VERTEX_ARRAY);
+ 		}
  	} else if (buffer->getType() == UVertexArray::C3F_V3F) {
  		// we use color arrays ...
! 		//ugl_driver->glPushClientAttrib(GL_CLIENT_VERTEX_ARRAY_BIT);
! 		ugl_driver->glEnableClientState(GL_VERTEX_ARRAY);
! 		ugl_driver->glEnableClientState(GL_COLOR_ARRAY);
  		ugl_driver->glShadeModel(GL_SMOOTH);
  		ugl_driver->glInterleavedArrays(GL_C3F_V3F, 0, buffer->getArray());
  		ugl_driver->glDrawArrays(glType, 0, buffer->getCount());
  		ugl_driver->glShadeModel(GL_FLAT);
! 		//ugl_driver->glPopClientAttrib();
! 		if (!vertexArrayWasEnabled) {
! 			ugl_driver->glDisableClientState(GL_VERTEX_ARRAY);
! 		}
! 		if (!colorArrayWasEnabled) {
! 			ugl_driver->glDisableClientState(GL_COLOR_ARRAY);
! 		}
  	}
  			ugl_driver->glTranslatef(-ufo_line_add, -ufo_line_add, 0);