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Diffstat (limited to 'progs/tests/bumpmap.c')
| -rw-r--r-- | progs/tests/bumpmap.c | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/progs/tests/bumpmap.c b/progs/tests/bumpmap.c new file mode 100644 index 00000000000..1b7ec2c135c --- /dev/null +++ b/progs/tests/bumpmap.c @@ -0,0 +1,208 @@ +/* + * 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; +} |