From 1793d5adac121a2142b662d87e24990ebf209ca3 Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Wed, 29 Apr 2009 20:17:21 +0100 Subject: progs/tests: Add mipmap_comp for mipmap testing with compressed textures --- progs/tests/.gitignore | 1 + progs/tests/Makefile | 1 + progs/tests/SConscript | 1 + progs/tests/mipmap_comp.c | 295 ++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 298 insertions(+) create mode 100644 progs/tests/mipmap_comp.c (limited to 'progs/tests') diff --git a/progs/tests/.gitignore b/progs/tests/.gitignore index e6369de3ab..8d05668c07 100644 --- a/progs/tests/.gitignore +++ b/progs/tests/.gitignore @@ -49,6 +49,7 @@ mapbufrange mapvbo minmag mipgen +mipmap_comp mipmap_limits mipmap_view multipal diff --git a/progs/tests/Makefile b/progs/tests/Makefile index f5fbf374f7..628ca41535 100644 --- a/progs/tests/Makefile +++ b/progs/tests/Makefile @@ -58,6 +58,7 @@ SOURCES = \ mapvbo.c \ minmag.c \ mipgen.c \ + mipmap_comp.c \ mipmap_limits.c \ mipmap_view.c \ multipal.c \ diff --git a/progs/tests/SConscript b/progs/tests/SConscript index 4f22ca735c..453fcecd9c 100644 --- a/progs/tests/SConscript +++ b/progs/tests/SConscript @@ -81,6 +81,7 @@ progs = [ 'mapvbo', 'minmag', 'mipgen', + 'mipmap_comp', 'mipmap_limits', 'mipmap_view', 'multipal', diff --git a/progs/tests/mipmap_comp.c b/progs/tests/mipmap_comp.c new file mode 100644 index 0000000000..5842e2b880 --- /dev/null +++ b/progs/tests/mipmap_comp.c @@ -0,0 +1,295 @@ +/* Copyright (c) Mark J. Kilgard, 1994. */ +/* + * (c) Copyright 1993, Silicon Graphics, Inc. + * ALL RIGHTS RESERVED + * Permission to use, copy, modify, and distribute this software for + * any purpose and without fee is hereby granted, provided that the above + * copyright notice appear in all copies and that both the copyright notice + * and this permission notice appear in supporting documentation, and that + * the name of Silicon Graphics, Inc. not be used in advertising + * or publicity pertaining to distribution of the software without specific, + * written prior permission. + * + * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "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, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT, + * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY + * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, + * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF + * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN + * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE + * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE. + * + * US Government Users Restricted Rights + * Use, duplication, or disclosure by the Government is subject to + * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph + * (c)(1)(ii) of the Rights in Technical Data and Computer Software + * clause at DFARS 252.227-7013 and/or in similar or successor + * clauses in the FAR or the DOD or NASA FAR Supplement. + * Unpublished-- rights reserved under the copyright laws of the + * United States. Contractor/manufacturer is Silicon Graphics, + * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311. + * + * OpenGL(TM) is a trademark of Silicon Graphics, Inc. + */ + +/* mipmap_comp + * Test compressed texture mipmaps + * + * Based on mipmap_limits + */ + +#include +#include +#include +#include +#include + +#include "readtex.h" + +#define SIZE 16 /* not larger then 16 */ + +static GLint BaseLevel = 0, MaxLevel = 9; +static GLfloat MinLod = -1, MaxLod = 9; +static GLfloat LodBias = 0.0; +static GLboolean NearestFilter = GL_TRUE; +static GLuint texImage; + + +static void +initValues(void) +{ + BaseLevel = 0; + MaxLevel = 9; + MinLod = -1; + MaxLod = 2; + LodBias = 5.0; + NearestFilter = GL_TRUE; +} + + +static void +makeImage(int level, int width, int height) +{ +#if 0 + GLubyte img[SIZE*SIZE*3]; + int i, j; + + (void)size; + for (i = 0; i < height; i++) { + for (j = 0; j < width; j++) { + int k = (i * width + j) * 3; + img[k + 0] = 255 * ((level + 1) % 2); + img[k + 1] = 255 * ((level + 1) % 2); + img[k + 2] = 255 * ((level + 1) % 2); + } + } + + glTexImage2D(GL_TEXTURE_2D, level, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, width, height, 0, + GL_RGB, GL_UNSIGNED_BYTE, img); +#else + GLubyte img[128]; + GLint size[] = { + 128, /* 16x16 */ + 32, /* 8x8 */ + 8, /* 4x4 */ + 8, /* 2x2 */ + 8, /* 1x1 */ + }; + int i; + int value = ((level + 1) % 2) * 0xffffffff; + memset(img, 0, 128); + + /* generate black and white mipmap levels */ + if (value) + for (i = 0; i < size[level] / 4; i += 2) + ((int*)img)[i] = value; + + glCompressedTexImage2D(GL_TEXTURE_2D, level, + GL_COMPRESSED_RGB_S3TC_DXT1_EXT, + width, height, 0, + size[level], img); +#endif +} + + +static void +makeImages(void) +{ + int i, sz; + + for (i = 0, sz = SIZE; sz >= 1; i++, sz /= 2) { + makeImage(i, sz, sz); + printf("Level %d size: %d x %d\n", i, sz, sz); + } +} + + +static void +myInit(void) +{ + + initValues(); + + glEnable(GL_DEPTH_TEST); + glDepthFunc(GL_LESS); + glShadeModel(GL_FLAT); + + glTranslatef(0.0, 0.0, -3.6); + + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glGenTextures(1, &texImage); + glBindTexture(GL_TEXTURE_2D, texImage); + makeImages(); + + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); + glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); + glEnable(GL_TEXTURE_2D); +} + + +static void +display(void) +{ + GLfloat tcm = 1.0; + glBindTexture(GL_TEXTURE_2D, texImage); + + printf("BASE_LEVEL=%d MAX_LEVEL=%d MIN_LOD=%.2g MAX_LOD=%.2g Bias=%.2g Filter=%s\n", + BaseLevel, MaxLevel, MinLod, MaxLod, LodBias, + NearestFilter ? "NEAREST" : "LINEAR"); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, BaseLevel); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, MaxLevel); + + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_LOD, MinLod); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_LOD, MaxLod); + + if (NearestFilter) { + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, + GL_NEAREST_MIPMAP_NEAREST); + } + else { + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, + GL_LINEAR_MIPMAP_LINEAR); + } + + glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, LodBias); + + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + glBegin(GL_QUADS); + glTexCoord2f(0.0, 0.0); glVertex3f(-2.0, -1.0, 0.0); + glTexCoord2f(0.0, tcm); glVertex3f(-2.0, 1.0, 0.0); + glTexCoord2f(tcm * 3000.0, tcm); glVertex3f(3000.0, 1.0, -6000.0); + glTexCoord2f(tcm * 3000.0, 0.0); glVertex3f(3000.0, -1.0, -6000.0); + glEnd(); + glFlush(); +} + + +static void +myReshape(int w, int h) +{ + glViewport(0, 0, w, h); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluPerspective(60.0, 1.0*(GLfloat)w/(GLfloat)h, 1.0, 30000.0); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); +} + + +static void +key(unsigned char k, int x, int y) +{ + (void) x; + (void) y; + switch (k) { + case 'b': + BaseLevel--; + if (BaseLevel < 0) + BaseLevel = 0; + break; + case 'B': + BaseLevel++; + if (BaseLevel > 10) + BaseLevel = 10; + break; + case 'm': + MaxLevel--; + if (MaxLevel < 0) + MaxLevel = 0; + break; + case 'M': + MaxLevel++; + if (MaxLevel > 10) + MaxLevel = 10; + break; + case 'l': + LodBias -= 0.25; + break; + case 'L': + LodBias += 0.25; + break; + case 'n': + MinLod -= 0.25; + break; + case 'N': + MinLod += 0.25; + break; + case 'x': + MaxLod -= 0.25; + break; + case 'X': + MaxLod += 0.25; + break; + case 'f': + NearestFilter = !NearestFilter; + break; + case ' ': + initValues(); + break; + case 27: /* Escape */ + exit(0); + break; + default: + return; + } + glutPostRedisplay(); +} + + +static void +usage(void) +{ + printf("usage:\n"); + printf(" b/B decrease/increase GL_TEXTURE_BASE_LEVEL\n"); + printf(" m/M decrease/increase GL_TEXTURE_MAX_LEVEL\n"); + printf(" n/N decrease/increase GL_TEXTURE_MIN_LOD\n"); + printf(" x/X decrease/increase GL_TEXTURE_MAX_LOD\n"); + printf(" l/L decrease/increase GL_TEXTURE_LOD_BIAS\n"); + printf(" f toggle nearest/linear filtering\n"); + printf(" SPACE reset values\n"); +} + + +int +main(int argc, char** argv) +{ + glutInit(&argc, argv); + glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH); + glutInitWindowSize (600, 600); + glutCreateWindow (argv[0]); + glewInit(); + myInit(); + glutReshapeFunc (myReshape); + glutDisplayFunc(display); + glutKeyboardFunc(key); + usage(); + glutMainLoop(); + return 0; /* ANSI C requires main to return int. */ +} -- cgit v1.2.3