/* * Copyright (c) 2009 VMware, Inc. * 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 * on the rights to use, copy, modify, merge, publish, distribute, sub * license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL * VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS 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. */ /** * Simple test for testing ATI_envmap_bumpmap support. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <math.h> #include <GL/glut.h> #include "readtex.h" static PFNGLGETTEXBUMPPARAMETERFVATIPROC glGetTexBumpParameterfvATI_func = NULL; static PFNGLGETTEXBUMPPARAMETERIVATIPROC glGetTexBumpParameterivATI_func = NULL; static PFNGLTEXBUMPPARAMETERFVATIPROC glTexBumpParameterfvATI_func = NULL; static const char *TexFile = "../images/arch.rgb"; static const GLfloat Near = 5.0, Far = 25.0; static void Display( void ) { /* together with the construction of dudv map, do fixed translation in y direction (up), some cosine deformation in x and more deformation in y dir */ GLfloat bumpMatrix[4] = {0.1, 0.0, 0.2, 0.1}; glClearColor(0.2, 0.2, 0.8, 0); glClear( GL_COLOR_BUFFER_BIT ); glPushMatrix(); /* this is the base map */ glActiveTexture( GL_TEXTURE0 ); glEnable( GL_TEXTURE_2D ); glBindTexture( GL_TEXTURE_2D, 1 ); glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE ); glTexEnvf( GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_REPLACE ); glTexEnvf( GL_TEXTURE_ENV, GL_SOURCE0_RGB, GL_TEXTURE ); /* bump map */ glActiveTexture( GL_TEXTURE1 ); glEnable( GL_TEXTURE_2D ); glBindTexture( GL_TEXTURE_2D, 2 ); glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE ); glTexEnvf( GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_BUMP_ENVMAP_ATI ); glTexEnvf( GL_TEXTURE_ENV, GL_BUMP_TARGET_ATI, GL_TEXTURE0); glTexBumpParameterfvATI_func(GL_BUMP_ROT_MATRIX_ATI, bumpMatrix); glCallList(1); glPopMatrix(); glutSwapBuffers(); } static void Reshape( int width, int height ) { GLfloat ar = (float) width / (float) height; glViewport( 0, 0, width, height ); glMatrixMode( GL_PROJECTION ); glLoadIdentity(); glFrustum( -ar, ar, -1.0, 1.0, Near, Far ); glMatrixMode( GL_MODELVIEW ); glLoadIdentity(); glTranslatef( 0.0, 0.0, -6.0 ); } static void Key( unsigned char key, int x, int y ) { (void) x; (void) y; switch (key) { case 27: exit(0); break; } glutPostRedisplay(); } static void Init( void ) { const char * const ver_string = (const char * const) glGetString( GL_VERSION ); GLfloat temp[16][16][2]; GLubyte *image = NULL; GLint imgWidth, imgHeight; GLenum imgFormat; GLint i,j; GLint param, paramArray[16]; GLfloat paramMat[4]; printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); printf("GL_VERSION = %s\n", ver_string); if ( !glutExtensionSupported("GL_ATI_envmap_bumpmap")) { printf("\nSorry, this program requires GL_ATI_envmap_bumpmap\n"); exit(1); } glGetTexBumpParameterfvATI_func = glutGetProcAddress("glGetTexBumpParameterfvATI"); glGetTexBumpParameterivATI_func = glutGetProcAddress("glGetTexBumpParameterivATI"); glTexBumpParameterfvATI_func = glutGetProcAddress("glTexBumpParameterfvATI"); glGetTexBumpParameterivATI_func(GL_BUMP_ROT_MATRIX_SIZE_ATI, ¶m); printf("BUMP_ROT_MATRIX_SIZE_ATI = %d\n", param); glGetTexBumpParameterivATI_func(GL_BUMP_NUM_TEX_UNITS_ATI, ¶m); printf("BUMP_NUM_TEX_UNITS_ATI = %d\n", param); glGetTexBumpParameterfvATI_func(GL_BUMP_ROT_MATRIX_ATI, paramMat); printf("initial rot matrix %f %f %f %f\n", paramMat[0], paramMat[1], paramMat[2], paramMat[3]); glGetTexBumpParameterivATI_func(GL_BUMP_TEX_UNITS_ATI, paramArray); printf("units supporting bump mapping: "); for (i = 0; i < param; i++) printf("%d ", paramArray[i] - GL_TEXTURE0); printf("\n"); image = LoadRGBImage(TexFile, &imgWidth, &imgHeight, &imgFormat); if (!image) { printf("Couldn't read %s\n", TexFile); exit(0); } glBindTexture( GL_TEXTURE_2D, 1 ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE ); glTexImage2D( GL_TEXTURE_2D, 0, imgFormat, imgWidth, imgHeight, 0, imgFormat, GL_UNSIGNED_BYTE, image ); for (j = 0; j < 16; j++) { for (i = 0; i < 16; i++) { temp[j][i][0] = cos((float)(i) * 3.1415 / 16.0); temp[j][i][1] = -0.5; } } glBindTexture( GL_TEXTURE_2D, 2 ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE ); glTexImage2D( GL_TEXTURE_2D, 0, GL_DU8DV8_ATI, 16, 16, 0, GL_DUDV_ATI, GL_FLOAT, temp ); glNewList( 1, GL_COMPILE ); glBegin(GL_QUADS); glColor3f( 0.9, 0.0, 0.0 ); glMultiTexCoord2f( GL_TEXTURE0, 0.0, 0.0 ); glMultiTexCoord2f( GL_TEXTURE1, 0.0, 0.0 ); glVertex2f(-1, -1); glMultiTexCoord2f( GL_TEXTURE0, 1.0, 0.0 ); glMultiTexCoord2f( GL_TEXTURE1, 1.0, 0.0 ); glVertex2f( 1, -1); glMultiTexCoord2f( GL_TEXTURE0, 1.0, 1.0 ); glMultiTexCoord2f( GL_TEXTURE1, 1.0, 1.0 ); glVertex2f( 1, 1); glMultiTexCoord2f( GL_TEXTURE0, 0.0, 1.0 ); glMultiTexCoord2f( GL_TEXTURE1, 0.0, 1.0 ); glVertex2f(-1, 1); glEnd(); glEndList(); } int main( int argc, char *argv[] ) { glutInit( &argc, argv ); glutInitWindowPosition( 0, 0 ); glutInitWindowSize( 400, 400 ); glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE ); glutCreateWindow( "GL_ATI_envmap_bumpmap test" ); glutReshapeFunc( Reshape ); glutKeyboardFunc( Key ); glutDisplayFunc( Display ); Init(); glutMainLoop(); return 0; }