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author | Ian Romanick <idr@us.ibm.com> | 2005-08-18 19:52:44 +0000 |
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committer | Ian Romanick <idr@us.ibm.com> | 2005-08-18 19:52:44 +0000 |
commit | b462855c24dc750b386fbd632b60f3fca3fe7d07 (patch) | |
tree | 11e151ee1fd064549f258f31e47e0410e182b9fc /progs | |
parent | e918bac8cd85aaefaef5d534d53398257b7df0f9 (diff) | |
download | external_mesa3d-b462855c24dc750b386fbd632b60f3fca3fe7d07.zip external_mesa3d-b462855c24dc750b386fbd632b60f3fca3fe7d07.tar.gz external_mesa3d-b462855c24dc750b386fbd632b60f3fca3fe7d07.tar.bz2 |
Add simple regression test for bugzilla #3195.
Diffstat (limited to 'progs')
-rw-r--r-- | progs/tests/Makefile | 7 | ||||
-rw-r--r-- | progs/tests/bug_3195.c | 275 |
2 files changed, 282 insertions, 0 deletions
diff --git a/progs/tests/Makefile b/progs/tests/Makefile index c32eb9b..768820c 100644 --- a/progs/tests/Makefile +++ b/progs/tests/Makefile @@ -23,6 +23,7 @@ SOURCES = antialias.c \ blendsquare.c \ bufferobj.c \ bug_3101.c \ + bug_3195.c \ crossbar.c \ cva.c \ dinoshade.c \ @@ -104,6 +105,12 @@ texrect: texrect.o readtex.o texrect.o: texrect.c readtex.h $(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@ +bug_3195: bug_3195.o readtex.o + $(CC) $(CFLAGS) bug_3195.o readtex.o $(LIBS) -o $@ + +bug_3195.o: bug_3195.c readtex.h + $(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@ + invert: invert.o readtex.o $(CC) invert.o readtex.o $(LIBS) -o $@ diff --git a/progs/tests/bug_3195.c b/progs/tests/bug_3195.c new file mode 100644 index 0000000..75de58b --- /dev/null +++ b/progs/tests/bug_3195.c @@ -0,0 +1,275 @@ +/* + * Copyright (C) 2000 Brian Paul All Rights Reserved. + * + * 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 + * BRIAN PAUL 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. + */ + +/** + * \file bug_3195.c + * + * Simple regression test for bug #3195. A bug in the i180 driver caused + * a segfault (inside the driver) when the LOD bias is adjusted and no texture + * is enabled. This test, which is based on progs/demos/lodbias.c, sets up + * all the texturing, disables all textures, adjusts the LOD bias, then + * re-enables \c GL_TEXTURE_2D. + * + * \author Brian Paul + * \author Ian Romanick <idr@us.ibm.com> + */ + +#include <assert.h> +#include <stdlib.h> +#include <stdio.h> +#include <math.h> +#include <GL/glut.h> +#include <GL/glext.h> + +#include "readtex.h" + +#define TEXTURE_FILE "../images/girl.rgb" + +static GLfloat Xrot = 0, Yrot = -30, Zrot = 0; +static GLint Bias = 0, BiasStepSign = +1; /* ints avoid fp precision problem */ +static GLint BiasMin = -400, BiasMax = 400; + + + +static void +PrintString(const char *s) +{ + while (*s) { + glutBitmapCharacter(GLUT_BITMAP_8_BY_13, (int) *s); + s++; + } +} + +static void Idle( void ) +{ + static int lastTime = 0; + int time = glutGet(GLUT_ELAPSED_TIME); + int step; + + if (lastTime == 0) + lastTime = time; + else if (time - lastTime < 10) + return; + + step = (time - lastTime) / 10 * BiasStepSign; + lastTime = time; + + Bias += step; + if (Bias < BiasMin) { + exit(0); + } + else if (Bias > BiasMax) { + Bias = BiasMax; + BiasStepSign = -1; + } + + glutPostRedisplay(); +} + + +static void Display( void ) +{ + char str[100]; + + glClear( GL_COLOR_BUFFER_BIT ); + + glMatrixMode( GL_PROJECTION ); + glLoadIdentity(); + glOrtho(-1, 1, -1, 1, -1, 1); + glMatrixMode( GL_MODELVIEW ); + glLoadIdentity(); + + glDisable(GL_TEXTURE_2D); + glColor3f(1,1,1); + glRasterPos3f(-0.9, -0.9, 0.0); + sprintf(str, "Texture LOD Bias = %4.1f", Bias * 0.01); + PrintString(str); + + glMatrixMode( GL_PROJECTION ); + glLoadIdentity(); + glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 25.0 ); + glMatrixMode( GL_MODELVIEW ); + glLoadIdentity(); + glTranslatef( 0.0, 0.0, -8.0 ); + + glPushMatrix(); + glRotatef(Xrot, 1, 0, 0); + glRotatef(Yrot, 0, 1, 0); + glRotatef(Zrot, 0, 0, 1); + + glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, 0.01 * Bias); + glEnable(GL_TEXTURE_2D); + + glBegin(GL_POLYGON); + glTexCoord2f(0, 0); glVertex2f(-1, -1); + glTexCoord2f(2, 0); glVertex2f( 1, -1); + glTexCoord2f(2, 2); glVertex2f( 1, 1); + glTexCoord2f(0, 2); glVertex2f(-1, 1); + glEnd(); + + glPopMatrix(); + + glutSwapBuffers(); +} + + +static void Reshape( int width, int height ) +{ + glViewport( 0, 0, width, height ); +} + + +static void Key( unsigned char key, int x, int y ) +{ + (void) x; + (void) y; + switch (key) { + case 27: + exit(0); + break; + } + glutPostRedisplay(); +} + + +static void SpecialKey( int key, int x, int y ) +{ + const GLfloat step = 3.0; + (void) x; + (void) y; + switch (key) { + case GLUT_KEY_UP: + Xrot -= step; + break; + case GLUT_KEY_DOWN: + Xrot += step; + break; + case GLUT_KEY_LEFT: + Yrot -= step; + break; + case GLUT_KEY_RIGHT: + Yrot += step; + break; + } + glutPostRedisplay(); +} + + +static void Init( void ) +{ + GLfloat maxBias; + const char * const ver_string = (const char * const) + glGetString( GL_VERSION ); + + printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + printf("GL_VERSION = %s\n", ver_string); + + printf("\nThis program should function nearly identically to Mesa's lodbias demo.\n" + "It should cycle through the complet LOD bias range once and exit. If bug\n" + "#3195 still exists, the demo should crash almost immediatly.\n"); + printf("This is a regression test for bug #3101.\n"); + printf("https://bugs.freedesktop.org/show_bug.cgi?id=3101\n"); + + if (!glutExtensionSupported("GL_EXT_texture_lod_bias")) { + printf("Sorry, GL_EXT_texture_lod_bias not supported by this renderer.\n"); + exit(1); + } + + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + + if (glutExtensionSupported("GL_SGIS_generate_mipmap")) { + /* test auto mipmap generation */ + GLint width, height, i; + GLenum format; + GLubyte *image = LoadRGBImage(TEXTURE_FILE, &width, &height, &format); + if (!image) { + printf("Error: could not load texture image %s\n", TEXTURE_FILE); + exit(1); + } + /* resize to 256 x 256 */ + if (width != 256 || height != 256) { + GLubyte *newImage = malloc(256 * 256 * 4); + gluScaleImage(format, width, height, GL_UNSIGNED_BYTE, image, + 256, 256, GL_UNSIGNED_BYTE, newImage); + free(image); + image = newImage; + } + printf("Using GL_SGIS_generate_mipmap\n"); + glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE); + glTexImage2D(GL_TEXTURE_2D, 0, format, 256, 256, 0, + format, GL_UNSIGNED_BYTE, image); + free(image); + + /* make sure mipmap was really generated correctly */ + width = height = 256; + for (i = 0; i < 9; i++) { + GLint w, h; + glGetTexLevelParameteriv(GL_TEXTURE_2D, i, GL_TEXTURE_WIDTH, &w); + glGetTexLevelParameteriv(GL_TEXTURE_2D, i, GL_TEXTURE_HEIGHT, &h); + printf("Level %d size: %d x %d\n", i, w, h); + assert(w == width); + assert(h == height); + width /= 2; + height /= 2; + } + + } + else if (!LoadRGBMipmaps(TEXTURE_FILE, GL_RGB)) { + printf("Error: could not load texture image %s\n", TEXTURE_FILE); + exit(1); + } + + /* mipmapping required for this extension */ + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); + + glGetFloatv(GL_MAX_TEXTURE_LOD_BIAS_EXT, &maxBias); + printf("LOD bias range: [%g, %g]\n", -maxBias, maxBias); + BiasMin = -100 * maxBias; + BiasMax = 100 * maxBias; + + /* Since we have (about) 8 mipmap levels, no need to bias beyond + * the range [-1, +8]. + */ + if (BiasMin < -100) + BiasMin = -100; + if (BiasMax > 800) + BiasMax = 800; +} + + +int main( int argc, char *argv[] ) +{ + glutInit( &argc, argv ); + glutInitWindowPosition( 0, 0 ); + glutInitWindowSize( 350, 350 ); + glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE ); + glutCreateWindow( "Bug #3195 Test" ); + glutReshapeFunc( Reshape ); + glutKeyboardFunc( Key ); + glutSpecialFunc( SpecialKey ); + glutDisplayFunc( Display ); + glutIdleFunc(Idle); + Init(); + glutMainLoop(); + return 0; +} |