From f5801fba247d8b0b5afe01196e9c7da7437d18ff Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Tue, 10 Jun 2008 14:09:45 +0100 Subject: [PATCH] trivial: add poly-flat-clip tests --- progs/trivial/Makefile | 2 + progs/trivial/poly-flat-clip.c | 8 +- progs/trivial/poly-flat-unfilled-clip.c | 144 ++++++++++++++++++++++++++++++++ 3 files changed, 150 insertions(+), 4 deletions(-) create mode 100644 progs/trivial/poly-flat-unfilled-clip.c diff --git a/progs/trivial/Makefile b/progs/trivial/Makefile index 594a9bd..cbfcdfc 100644 --- a/progs/trivial/Makefile +++ b/progs/trivial/Makefile @@ -48,6 +48,8 @@ SOURCES = \ point-wide-smooth.c \ point.c \ poly-flat.c \ + poly-flat-clip.c \ + poly-flat-unfilled-clip.c \ poly-unfilled.c \ poly.c \ quad-clip-all-vertices.c \ diff --git a/progs/trivial/poly-flat-clip.c b/progs/trivial/poly-flat-clip.c index bd8d347..72c2a29 100644 --- a/progs/trivial/poly-flat-clip.c +++ b/progs/trivial/poly-flat-clip.c @@ -75,13 +75,13 @@ static void Draw(void) glBegin(GL_POLYGON); glColor3f(1,0,0); - glVertex3f( 1.1, -1.1, -30.0); + glVertex3f( 0, 0, -30.0); glColor3f(1,1,0); - glVertex3f( 1.1, 1.1, -30.0); + glVertex3f( 1.3, 1.1, -30.0); glColor3f(1,0,1); - glVertex3f(-1.1, 1.1, -30.0); + glVertex3f(-.9, .9, -30.0); glColor3f(0,1,1); - glVertex3f(-1.1, -1.1, -30.0); + glVertex3f(-1.1, -1.3, -30.0); glEnd(); glFlush(); diff --git a/progs/trivial/poly-flat-unfilled-clip.c b/progs/trivial/poly-flat-unfilled-clip.c new file mode 100644 index 0000000..d3a14a5 --- /dev/null +++ b/progs/trivial/poly-flat-unfilled-clip.c @@ -0,0 +1,144 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include +#include +#include +#include + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + glShadeModel(GL_FLAT); + + glPolygonMode(GL_FRONT, GL_LINE); + glPolygonMode(GL_BACK, GL_LINE); + glLineWidth(4.0); + + + glBegin(GL_POLYGON); + glColor3f(1,0,0); + glVertex3f( 0, 0, -30.0); + glColor3f(1,1,0); + glVertex3f( 1.3, 1.1, -30.0); + glColor3f(1,0,1); + glVertex3f(-.9, .9, -30.0); + glColor3f(0,1,1); + glVertex3f(-1.1, -1.3, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} -- 2.7.4