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Diffstat (limited to 'progs/windml/uglflip.c')
| -rw-r--r-- | progs/windml/uglflip.c | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/progs/windml/uglflip.c b/progs/windml/uglflip.c new file mode 100644 index 00000000000..ffc6ece2db1 --- /dev/null +++ b/progs/windml/uglflip.c @@ -0,0 +1,219 @@ + +/* 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 <[email protected]> + */ + +/* +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 (void); + +void uglflip (void) + { + taskSpawn("tFlip", 210, VX_FP_TASK, 100000, (FUNCPTR)windMLFlip, + 0,1,2,3,4,5,6,7,8,9); + } + +void windMLFlip(void) + { + + 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); + + umc = uglMesaCreateNewContext(UGL_MESA_DOUBLE_SW, 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; + } |