fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2025-12-25 00:00:11 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Add a couple of test apps for line/unfilled polygon clipping.

Browse source
This commit is contained in:
Eric Anholt 2008-03-27 11:57:08 -07:00
parent 0500467044
commit 227af94cce
4 changed files with 384 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
progs/tests/.gitignore vendored
View file

@ -38,6 +38,7 @@ getproclist.h
interleave
invert
jkrahntest
lineclip
manytex
mipmap_limits
multipal
@ -66,6 +67,7 @@ texline
texobjshare
texrect
texwrap
unfilledclip
vao-01
vao-02
vparray

2
progs/tests/Makefile
View file

@ -48,6 +48,7 @@ SOURCES = \
interleave.c \
invert.c \
jkrahntest.c \
lineclip.c \
manytex.c \
minmag.c \
mipmap_limits.c \
@ -73,6 +74,7 @@ SOURCES = \
texobjshare.c \
texrect.c \
texwrap.c \
unfilledclip.c \
vao-01.c \
vao-02.c \
vparray.c \

175
progs/tests/lineclip.c Normal file
View file

@ -0,0 +1,175 @@
/*
* Copyright © 2008 Intel Corporation
*
* 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 (including the next
* paragraph) 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 HOLDERS 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:
* Eric Anholt <eric@anholt.net>
*
*/
#include <stdlib.h>
#include <GL/glut.h>
static int win_width, win_height;
static void
line(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
{
glBegin(GL_LINES);
glVertex2f(x1, y1);
glVertex2f(x2, y2);
glEnd();
}
static void
line3(GLfloat x1, GLfloat y1, GLfloat z1, GLfloat x2, GLfloat y2, GLfloat z2)
{
glBegin(GL_LINES);
glVertex3f(x1, y1, z1);
glVertex3f(x2, y2, z2);
glEnd();
}
static void
display(void)
{
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(1.0, 0.0, 0.0);
/* 2 lines clipped along xmin */
line(-20, win_height / 2 - 20,
20, win_height / 2 - 20);
line( 20, win_height / 2 + 20,
-20, win_height / 2 + 20);
glColor3f(0.0, 1.0, 0.0);
/* 2 lines clipped along ymax */
line(win_width / 2 - 20, win_height + 20,
win_width / 2 - 20, win_height - 20);
line(win_width / 2 + 20, win_height - 20,
win_width / 2 + 20, win_height + 20);
glColor3f(0.0, 0.0, 1.0);
/* 2 lines clipped along xmax */
line(win_width - 20, win_height / 2 - 20,
win_width + 20, win_height / 2 - 20);
line(win_width + 20, win_height / 2 + 20,
win_width - 20, win_height / 2 + 20);
glColor3f(1.0, 1.0, 1.0);
/* 2 lines clipped along ymin */
line(win_width / 2 - 20, 20,
win_width / 2 - 20, -20);
line(win_width / 2 + 20, -20,
win_width / 2 + 20, 20);
/* 2 lines clipped along near */
glColor3f(1.0, 0.0, 1.0);
line3(win_width / 2 - 20 - 20, win_height / 2, 0.5,
win_width / 2 - 20 + 20, win_height / 2, -0.5);
line3(win_width / 2 - 20, win_height / 2 - 20, -0.5,
win_width / 2 - 20, win_height / 2 + 20, 0.5);
/* 2 lines clipped along far */
glColor3f(0.0, 1.0, 1.0);
line3(win_width / 2 + 20 - 20, win_height / 2, 1.5,
win_width / 2 + 20 + 20, win_height / 2, 0.5);
line3(win_width / 2 + 20, win_height / 2 - 20, 0.5,
win_width / 2 + 20, win_height / 2 + 20, 1.5);
/* entirely clipped along near/far */
glColor3f(.5, .5, .5);
line3(win_width / 2, win_height / 2 - 20, -0.5,
win_width / 2, win_height / 2 + 20, -0.5);
glColor3f(.5, .5, .5);
line3(win_width / 2, win_height / 2 - 20, 1.5,
win_width / 2, win_height / 2 + 20, 1.5);
glColor3f(1.0, 1.0, 0.0);
/* lines clipped along both x and y limits */
line(-5, 20,
20, -5); /* xmin, ymin */
line(-5, win_height - 20,
20, win_height + 5); /* xmin, ymax */
line(win_width - 20, -5,
win_width + 5, 20); /* xmax, ymin */
line(win_width - 20, win_height + 5,
win_width + 5, win_height - 20); /* xmax, ymax */
glutSwapBuffers();
}
static void
reshape(int width, int height)
{
win_width = width;
win_height = height;
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, win_width, 0, win_height, 0.0, -1.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(.25, .25, 0);
}
static void key( unsigned char key, int x, int y )
{
(void) x;
(void) y;
switch (key) {
case 27: /* esc */
exit(0);
break;
}
glutPostRedisplay();
}
static void
init(void)
{
}
int
main(int argc, char *argv[])
{
win_width = 200;
win_height = 200;
glutInit(&argc, argv);
glutInitWindowPosition(0, 0);
glutInitWindowSize(win_width, win_height);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow(argv[0]);
glutReshapeFunc(reshape);
glutKeyboardFunc(key);
glutDisplayFunc(display);
init();
glutMainLoop();
return 0;
}

205
progs/tests/unfilledclip.c Normal file
View file

@ -0,0 +1,205 @@
/*
* Copyright © 2008 Intel Corporation
*
* 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 (including the next
* paragraph) 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 HOLDERS 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:
* Eric Anholt <eric@anholt.net>
*
*/
#include <stdlib.h>
#include <GL/glut.h>
static int win_width, win_height;
static void
line(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
{
glBegin(GL_LINES);
glVertex2f(x1, y1);
glVertex2f(x2, y2);
glEnd();
}
static void
line3(GLfloat x1, GLfloat y1, GLfloat z1, GLfloat x2, GLfloat y2, GLfloat z2)
{
glBegin(GL_LINES);
glVertex3f(x1, y1, z1);
glVertex3f(x2, y2, z2);
glEnd();
}
static void
display(void)
{
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(1.0, 0.0, 0.0);
/* clipped along xmin */
glBegin(GL_TRIANGLES);
glVertex2f(-20, win_height / 2 - 20);
glVertex2f(20, win_height / 2);
glVertex2f(-20, win_height / 2 + 20);
glEnd();
glColor3f(0.0, 1.0, 0.0);
/* clipped along ymax */
glBegin(GL_TRIANGLES);
glVertex2f(win_height / 2 - 20, win_height + 20);
glVertex2f(win_height / 2, win_height - 20);
glVertex2f(win_height / 2 + 20, win_height + 20);
glEnd();
glColor3f(0.0, 0.0, 1.0);
/* clipped along xmax */
glBegin(GL_TRIANGLES);
glVertex2f(win_height + 20, win_height / 2 - 20);
glVertex2f(win_height - 20, win_height / 2);
glVertex2f(win_height + 20, win_height / 2 + 20);
glEnd();
glColor3f(1.0, 1.0, 1.0);
/* clipped along ymin */
glBegin(GL_TRIANGLES);
glVertex2f(win_height / 2 - 20, -20);
glVertex2f(win_height / 2, 20);
glVertex2f(win_height / 2 + 20, -20);
glEnd();
/* clipped along near */
glColor3f(1.0, 0.0, 1.0);
glBegin(GL_TRIANGLES);
glVertex3f(win_width / 2 - 20, win_height / 2 - 20, 0.5);
glVertex3f(win_width / 2 - 40, win_height / 2, -0.5);
glVertex3f(win_width / 2 - 20, win_height / 2 + 20, 0.5);
glEnd();
/* clipped along far */
glColor3f(0.0, 1.0, 1.0);
glBegin(GL_TRIANGLES);
glVertex3f(win_width / 2 + 20, win_height / 2 - 20, 0.5);
glVertex3f(win_width / 2 + 40, win_height / 2, 1.5);
glVertex3f(win_width / 2 + 20, win_height / 2 + 20, 0.5);
glEnd();
/* entirely clipped along near/far */
glColor3f(.5, .5, .5);
glBegin(GL_TRIANGLES);
glVertex3f(win_width / 2 - 20, win_height / 2 + 20, -0.5);
glVertex3f(win_width / 2, win_height / 2 + 40, -0.5);
glVertex3f(win_width / 2 + 20, win_height / 2 + 20, -0.5);
glEnd();
glBegin(GL_TRIANGLES);
glVertex3f(win_width / 2 - 20, win_height / 2 - 20, 1.5);
glVertex3f(win_width / 2, win_height / 2 - 40, 1.5);
glVertex3f(win_width / 2 + 20, win_height / 2 - 20, 1.5);
glEnd();
glColor3f(.5, .5, .5);
line3(win_width / 2, win_height / 2 - 20, 1.5,
win_width / 2, win_height / 2 + 20, 1.5);
glColor3f(1.0, 1.0, 0.0);
/* clipped along both x and y limits */
glBegin(GL_TRIANGLES); /* xmin, ymin */
glVertex2f(-5, 20);
glVertex2f(20, 20);
glVertex2f(20, -5);
glEnd();
glBegin(GL_TRIANGLES); /* xmin, ymax */
glVertex2f(-5, win_height - 20);
glVertex2f(20, win_height - 20);
glVertex2f(20, win_height + 5);
glEnd();
glBegin(GL_TRIANGLES); /* xmax, ymax */
glVertex2f(win_width - 20, win_height + 5);
glVertex2f(win_width - 20, win_height - 20);
glVertex2f(win_width + 5, win_height - 20);
glEnd();
glBegin(GL_TRIANGLES); /* xmax, ymin */
glVertex2f(win_width + 5, 20);
glVertex2f(win_width - 20, 20);
glVertex2f(win_width - 20, -5);
glEnd();
glutSwapBuffers();
}
static void
reshape(int width, int height)
{
win_width = width;
win_height = height;
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, win_width, 0, win_height, 0.0, -1.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(.25, .25, 0);
}
static void key( unsigned char key, int x, int y )
{
(void) x;
(void) y;
switch (key) {
case 27: /* esc */
exit(0);
break;
}
glutPostRedisplay();
}
static void
init(void)
{
}
int
main(int argc, char *argv[])
{
win_width = 200;
win_height = 200;
glutInit(&argc, argv);
glutInitWindowPosition(0, 0);
glutInitWindowSize(win_width, win_height);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow(argv[0]);
glutReshapeFunc(reshape);
glutKeyboardFunc(key);
glutDisplayFunc(display);
init();
glutMainLoop();
return 0;
}