From 58eaf0accaa38f6e02d7af928ea0851cb4ae91cd Mon Sep 17 00:00:00 2001 From: Brian Date: Tue, 8 May 2007 13:48:52 -0600 Subject: a somewhat nicer demo w/ command line options --- progs/miniglx/miniglxtest.c | 244 +++++++++++++++++++++++++++++--------------- 1 file changed, 163 insertions(+), 81 deletions(-) (limited to 'progs') diff --git a/progs/miniglx/miniglxtest.c b/progs/miniglx/miniglxtest.c index ecc5786b73..4c5118f368 100644 --- a/progs/miniglx/miniglxtest.c +++ b/progs/miniglx/miniglxtest.c @@ -1,5 +1,3 @@ -/* $Id: miniglxtest.c,v 1.3 2004/03/25 14:58:39 brianp Exp $ */ - /* * Test the mini GLX interface. */ @@ -7,6 +5,7 @@ #include #include +#include #include #include #define USE_MINI_GLX 1 @@ -15,91 +14,88 @@ #else #include #endif +#include "../util/writebuf.c" -#define FRONTBUFFER 1 -#define NR 6 -#define DO_SLEEPS 1 -#define NR_DISPLAYS 2 +static GLXContext ctx; -GLXContext ctx; +static GLuint NumFrames = 100; +static GLuint NumDisplays = 1; +static GLboolean Texture = GL_FALSE; +static GLboolean SingleBuffer = GL_FALSE; +static GLboolean Sleeps = GL_TRUE; -static void _subset_Rectf( GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2 ) +static void +rect(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2) { - glBegin( GL_QUADS ); - glVertex2f( x1, y1 ); - glVertex2f( x2, y1 ); - glVertex2f( x2, y2 ); - glVertex2f( x1, y2 ); + glBegin(GL_QUADS); + glTexCoord2f(0, 0); glColor3f(0, 0, 1); glVertex2f(x1, y1); + glTexCoord2f(1, 0); glColor3f(1, 0, 0); glVertex2f(x2, y1); + glTexCoord2f(1, 1); glColor3f(0, 1, 0); glVertex2f(x2, y2); + glTexCoord2f(0, 1); glColor3f(0, 0, 0); glVertex2f(x1, y2); glEnd(); } - -static void redraw( Display *dpy, Window w, int rot ) +static void +redraw(Display *dpy, Window w, int rot) { - printf("Redraw event\n"); - -#if FRONTBUFFER - glDrawBuffer( GL_FRONT ); -#else -/* glDrawBuffer( GL_BACK ); */ -#endif + GLfloat a; - glClearColor( rand()/(float)RAND_MAX, - rand()/(float)RAND_MAX, - rand()/(float)RAND_MAX, - 1); + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - glClear( GL_COLOR_BUFFER_BIT ); - -#if 1 - glColor3f( rand()/(float)RAND_MAX, - rand()/(float)RAND_MAX, - rand()/(float)RAND_MAX ); glPushMatrix(); - glRotatef(rot, 0, 0, 1); - glScalef(.5, .5, .5); - _subset_Rectf( -1, -1, 1, 1 ); + glRotatef(rot, 0, 0, 1); + glScalef(.5, .5, .5); + for (a = 0.0; a < 360.0; a += 30.0) { + glPushMatrix(); + glRotatef(a, 0, 0, 1); + glRotatef(40, 1, 0, 0); + glColor3f(a / 360.0, 1-a/360.0, 0); + rect(0.3, -0.25, 1.5, 0.25); + glPopMatrix(); + } glPopMatrix(); -#endif -#if FRONTBUFFER - glFlush(); -#else - glXSwapBuffers( dpy, w ); -#endif - glFinish(); + if (SingleBuffer) + glFlush(); + else + glXSwapBuffers(dpy, w); } -static Window make_rgb_db_window( Display *dpy, - unsigned int width, unsigned int height ) +static Window +make_window(Display *dpy, unsigned int width, unsigned int height) { - int attrib[] = { GLX_RGBA, - GLX_RED_SIZE, 1, - GLX_GREEN_SIZE, 1, - GLX_BLUE_SIZE, 1, -#if !FRONTBUFFER - GLX_DOUBLEBUFFER, -#endif - None }; - int scrnum; + int attrib_single[] = { GLX_RGBA, + GLX_RED_SIZE, 1, + GLX_GREEN_SIZE, 1, + GLX_BLUE_SIZE, 1, + GLX_DEPTH_SIZE, 1, + None }; + int attrib_double[] = { GLX_RGBA, + GLX_RED_SIZE, 1, + GLX_GREEN_SIZE, 1, + GLX_BLUE_SIZE, 1, + GLX_DEPTH_SIZE, 1, + GLX_DOUBLEBUFFER, + None }; + int *attrib = SingleBuffer ? attrib_single : attrib_double; + int scrnum = 0; XSetWindowAttributes attr; unsigned long mask; Window root; Window win; XVisualInfo *visinfo; - scrnum = 0; - root = RootWindow( dpy, scrnum ); + root = RootWindow(dpy, scrnum); - if (!(visinfo = glXChooseVisual( dpy, scrnum, attrib ))) { + if (!(visinfo = glXChooseVisual(dpy, scrnum, attrib))) { printf("Error: couldn't get an RGB, Double-buffered visual\n"); exit(1); } - if(!(ctx = glXCreateContext( dpy, visinfo, NULL, True ))) { + if (!(ctx = glXCreateContext(dpy, visinfo, NULL, True))) { printf("Error: glXCreateContext failed\n"); exit(1); } @@ -107,19 +103,19 @@ static Window make_rgb_db_window( Display *dpy, /* window attributes */ attr.background_pixel = 0; attr.border_pixel = 0; - attr.colormap = XCreateColormap( dpy, root, visinfo->visual, AllocNone); + attr.colormap = XCreateColormap(dpy, root, visinfo->visual, AllocNone); attr.event_mask = StructureNotifyMask | ExposureMask; mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask; - win = XCreateWindow( dpy, root, 0, 0, width, height, + win = XCreateWindow(dpy, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, - visinfo->visual, mask, &attr ); + visinfo->visual, mask, &attr); if (!win) { printf("Error: XCreateWindow failed\n"); exit(1); } - glXMakeCurrent( dpy, win, ctx ); + glXMakeCurrent(dpy, win, ctx); glViewport(0, 0, width, height); @@ -127,22 +123,28 @@ static Window make_rgb_db_window( Display *dpy, } -static void event_loop( Display *dpy, Window win ) +static void +event_loop(Display *dpy, Window win) { int i; - printf("Hang on... drawing %d frames\n", NR); - for (i = 0; i < NR; i++) { - redraw( dpy, win, i*10 ); - if (DO_SLEEPS) { - printf("sleep(1)\n"); - sleep(1); + printf("Drawing %d frames\n", NumFrames); + + for (i = 0; i < NumFrames; i++) { + redraw(dpy, win, -i*2); + if (i == 1) { + glReadBuffer(GL_BACK); + WritePPMFile("frame1.ppm", 800,600); + } + if (Sleeps) { + usleep(20000); } } } -static int foo( void ) +static int +runtest(void) { Display *dpy; Window win; @@ -153,41 +155,121 @@ static int foo( void ) return 1; } - win = make_rgb_db_window( dpy, 800, 600); + win = make_window(dpy, 800, 600); srand(getpid()); - glShadeModel( GL_FLAT ); - glClearColor( 0.5, 0.5, 0.5, 1.0 ); + /* init GL state */ + glClearColor(0.5, 0.5, 0.5, 1.0); + glEnable(GL_DEPTH_TEST); + if (Texture) { + GLubyte image[16][16][4]; + GLint i, j; + for (i = 0; i < 16; i++) { + for (j = 0; j < 16; j++) { + if (((i / 2) ^ (j / 2)) & 1) { + image[i][j][0] = 255; + image[i][j][1] = 255; + image[i][j][2] = 255; + image[i][j][3] = 255; + } + else { + image[i][j][0] = 128; + image[i][j][1] = 128; + image[i][j][2] = 128; + image[i][j][3] = 128; + } + } + } + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, + GL_RGBA, GL_UNSIGNED_BYTE, image); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glEnable(GL_TEXTURE_2D); + } + if (SingleBuffer) { + glDrawBuffer(GL_FRONT); + glReadBuffer(GL_FRONT); + } + else { + glDrawBuffer(GL_BACK); + } - XMapWindow( dpy, win ); + XMapWindow(dpy, win); + /* wait for window to get mapped */ { XEvent e; while (1) { - XNextEvent( dpy, &e ); + XNextEvent(dpy, &e); if (e.type == MapNotify && e.xmap.window == win) { break; } } } - event_loop( dpy, win ); + event_loop(dpy, win); - glXDestroyContext( dpy, ctx ); - XDestroyWindow( dpy, win ); + glXDestroyContext(dpy, ctx); + XDestroyWindow(dpy, win); - XCloseDisplay( dpy ); + XCloseDisplay(dpy); return 0; } -int main() +static void +usage(void) +{ + printf("Usage:\n"); + printf(" -f N render N frames (default %d)\n", NumFrames); + printf(" -d N do N display cycles\n"); + printf(" -t texturing\n"); + printf(" -s single buffering\n"); + printf(" -n no usleep() delay\n"); +} + + +static void +parse_args(int argc, char *argv[]) { int i; - for (i = 0 ; i < NR_DISPLAYS ; i++) { - if (foo() != 0) + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-f") == 0) { + NumFrames = atoi(argv[i + 1]); + i++; + } + else if (strcmp(argv[i], "-d") == 0) { + NumDisplays = atoi(argv[i + 1]); + i++; + } + else if (strcmp(argv[i], "-n") == 0) { + Sleeps = GL_FALSE; + } + else if (strcmp(argv[i], "-s") == 0) { + SingleBuffer = GL_TRUE; + } + else if (strcmp(argv[i], "-t") == 0) { + Texture = GL_TRUE; + } + else { + usage(); + exit(1); + } + } +} + + +int +main(int argc, char *argv[]) +{ + int i; + + parse_args(argc, argv); + + for (i = 0; i < NumDisplays; i++) { + if (runtest() != 0) break; } -- cgit v1.2.3