Squashed 'nx-X11/extras/Mesa_6.4.2/' content from commit 475b1f7

git-subtree-dir: nx-X11/extras/Mesa_6.4.2
git-subtree-split: 475b1f7b56fa36ef4f3b22a749f88a98ddc0d502

1 files changed, 224 insertions, 0 deletions

diff --git a/progs/windml/uglflip.c b/progs/windml/uglflip.c
new file mode 100644
index 000000000..0ca068f41
--- /dev/null
+++ b/progs/windml/uglflip.c
@@ -0,0 +1,224 @@
+
+/* uglflip.c - WindML/Mesa example program */
+
+/* Copyright (C) 2001 by Wind River Systems, Inc */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.5
+ *
+ * The MIT License
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Authors:
+ * Stephane Raimbault <stephane.raimbault@windriver.com> 
+ */
+
+/*
+DESCRIPTION
+Draw a triangle and flip the screen
+*/
+
+#include <stdio.h>
+#include <math.h>
+
+#include <ugl/ugl.h>
+#include <ugl/uglucode.h>
+#include <ugl/uglevent.h>
+#include <ugl/uglinput.h>
+
+#include <GL/uglmesa.h>
+#include <GL/glu.h>
+
+#define BLACK     (0)
+#define RED       (1)
+#define GREEN     (2)
+#define BLUE      (3)
+#define CI_OFFSET  4
+
+UGL_LOCAL GLuint rgb;
+UGL_LOCAL UGL_EVENT_SERVICE_ID eventServiceId;
+UGL_LOCAL UGL_EVENT_Q_ID qId;
+UGL_LOCAL volatile UGL_BOOL stopWex;
+
+UGL_LOCAL UGL_MESA_CONTEXT umc;
+
+UGL_LOCAL void initGL (void)
+    {
+    uglMesaSetColor(BLACK, 0.0, 0.0, 0.0);
+    uglMesaSetColor(RED, 1.0, 0.3, 0.3);
+    uglMesaSetColor(GREEN, 0.3, 1.0, 0.3);
+    uglMesaSetColor(BLUE, 0.3, 0.3, 1.0);
+    
+    glClearColor(0.0, 0.0, 0.0, 0.0);
+    glClearIndex(BLACK);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glMatrixMode(GL_MODELVIEW);
+    }
+
+UGL_LOCAL void drawGL (void)
+    {
+    glClear(GL_COLOR_BUFFER_BIT);
+    
+    glBegin(GL_TRIANGLES);
+        (rgb) ? glColor3f(1.0, 0.3, 0.3) : glIndexi(RED);
+	glVertex2f(0.75, -0.50);
+	(rgb) ? glColor3f(0.3, 1.0, 0.3) : glIndexi(GREEN);
+	glVertex2f(0.0, 0.75);
+	(rgb) ? glColor3f(0.3, 0.3, 1.0) : glIndexi(BLUE);
+	glVertex2f(-0.75, -0.50);
+    glEnd();
+    
+    glBegin(GL_LINES);
+        (rgb) ? glColor3f(1.0, 0.3, 0.3) : glIndexi(RED);
+	glVertex2f(-1.0, 1.0);
+	(rgb) ? glColor3f(0.3, 0.3, 1.0) : glIndexi(BLUE);
+	glVertex2f(1.0, -1.0);
+    glEnd();
+
+    glFlush();
+
+    uglMesaSwapBuffers();
+    }    
+
+UGL_LOCAL void echoUse(void)
+    {
+    printf("tFlip keys:\n");
+    printf("             d  Toggle dithering\n");
+    printf("            up  Reduce the window\n");
+    printf("          down  Enlarge the window\n");
+    printf("       page up  Y==0 is the bottom line and increases upward\n");
+    printf("     page down  Y==0 is the bottom line and increases downward\n");
+    printf("           ESC  Exit\n");
+    }
+
+UGL_LOCAL void readKey (UGL_WCHAR key)
+    {
+    
+    switch(key)
+	{
+	case UGL_UNI_UP_ARROW:
+	    uglMesaResizeWindow(8, 8);
+	    break;
+	case UGL_UNI_DOWN_ARROW:
+	    glDrawBuffer(GL_FRONT_LEFT);
+	    glClear(GL_COLOR_BUFFER_BIT);
+	    glDrawBuffer(GL_BACK_LEFT);
+	    uglMesaResizeWindow(-8, -8);
+	    break;
+	case UGL_UNI_PAGE_UP:
+	    uglMesaPixelStore(UGL_MESA_Y_UP, GL_TRUE);
+	    break;
+	case UGL_UNI_PAGE_DOWN:
+	    uglMesaPixelStore(UGL_MESA_Y_UP, GL_FALSE);
+	    break;
+	case UGL_UNI_ESCAPE:
+	    stopWex = UGL_TRUE;
+	    break;
+	case 'd':
+	    if (glIsEnabled(GL_DITHER))
+		glDisable(GL_DITHER);
+	    else
+		glEnable(GL_DITHER);
+	    break;
+	}
+    }
+
+UGL_LOCAL void loopEvent(void)
+    {
+    UGL_EVENT event;
+    UGL_INPUT_EVENT * pInputEvent;
+ 
+    drawGL();
+
+    UGL_FOREVER
+	{
+	if (uglEventGet (qId, &event, sizeof (event), UGL_WAIT_FOREVER)
+	    != UGL_STATUS_Q_EMPTY)
+            {
+	    pInputEvent = (UGL_INPUT_EVENT *)&event;
+	    
+	    if (pInputEvent->header.type == UGL_EVENT_TYPE_KEYBOARD &&
+		pInputEvent->modifiers & UGL_KEYBOARD_KEYDOWN)
+		{
+		readKey(pInputEvent->type.keyboard.key);
+		drawGL();
+		}
+	    }
+
+	if (stopWex)
+            break;
+	}
+    }
+
+void windMLFlip (UGL_BOOL windMLMode);
+
+void uglflip (void)
+    {
+    taskSpawn ("tFlip", 210, VX_FP_TASK, 100000, (FUNCPTR)windMLFlip,
+	       UGL_FALSE,1,2,3,4,5,6,7,8,9);
+    }
+
+void windMLFlip (UGL_BOOL windMLMode)
+    {
+
+    UGL_INPUT_DEVICE_ID keyboardDevId;
+
+    uglInitialize();
+
+    uglDriverFind (UGL_KEYBOARD_TYPE, 0, (UGL_UINT32 *)&keyboardDevId);
+
+    uglDriverFind (UGL_EVENT_SERVICE_TYPE, 0, (UGL_UINT32 *)&eventServiceId);
+
+    qId = uglEventQCreate (eventServiceId, 100);
+
+    if (windMLMode)
+       umc = uglMesaCreateNewContext(UGL_MESA_SINGLE
+				     | UGL_MESA_WINDML_EXCLUSIVE, NULL);
+    else
+       umc = uglMesaCreateNewContext(UGL_MESA_DOUBLE_SOFTWARE, NULL);
+
+    if (umc == NULL)
+        {
+	uglDeinitialize();
+	return;
+        }
+
+    uglMesaMakeCurrentContext(umc, 0, 0, UGL_MESA_FULLSCREEN_WIDTH,
+			      UGL_MESA_FULLSCREEN_HEIGHT);
+    
+    uglMesaGetIntegerv(UGL_MESA_RGB, &rgb);
+    
+    initGL();
+
+    echoUse();
+    stopWex = UGL_FALSE;	    
+    loopEvent();
+    
+    uglEventQDestroy (eventServiceId, qId);
+
+    uglMesaDestroyContext();
+    uglDeinitialize();
+
+    return;
+    }