From ab41a96ae7df4479bc247ed6d7a06ade350fd149 Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Mon, 26 Jan 2004 13:45:42 +0000 Subject: Add tests for ARB_fp trig instructions and also for 1D texturing --- progs/tests/Makefile.X11 | 2 + progs/tests/arbfptrig.c | 156 +++++++++++++++++++++++++++++++++++++++++++++++ progs/tests/tex1d.c | 139 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 297 insertions(+) create mode 100644 progs/tests/arbfptrig.c create mode 100644 progs/tests/tex1d.c diff --git a/progs/tests/Makefile.X11 b/progs/tests/Makefile.X11 index f51f01a5e3..4d88947863 100644 --- a/progs/tests/Makefile.X11 +++ b/progs/tests/Makefile.X11 @@ -12,6 +12,7 @@ SOURCES = antialias.c \ arbfpspec.c \ arbfptest1.c \ arbfptexture.c \ + arbfptrig.c \ arbvptest1.c \ arbvptest3.c \ arbvptorus.c \ @@ -29,6 +30,7 @@ SOURCES = antialias.c \ seccolor.c \ sharedtex.c \ stencilwrap.c \ + tex1d.c \ texline.c \ texrect.c \ texwrap.c \ diff --git a/progs/tests/arbfptrig.c b/progs/tests/arbfptrig.c new file mode 100644 index 0000000000..26b68c6b41 --- /dev/null +++ b/progs/tests/arbfptrig.c @@ -0,0 +1,156 @@ +/* GL_ARB_fragment_program texture test */ + +#include +#include +#include +#include +#include +#define GL_GLEXT_PROTOTYPES +#include + +#include "readtex.c" + + +#define TEXTURE_FILE "../images/girl.rgb" + +static GLfloat Xrot = 0.0, Yrot = 0.0, Zrot = 0.0; + +#define PI 3.141592 + +static void Display( void ) +{ + glClear( GL_COLOR_BUFFER_BIT ); + + glPushMatrix(); + glRotatef(Xrot, 1.0, 0.0, 0.0); + glRotatef(Yrot, 0.0, 1.0, 0.0); + glRotatef(Zrot, 0.0, 0.0, 1.0); + + glBegin(GL_POLYGON); + glTexCoord2f(-PI, 0); glVertex2f(-1, -1); + glTexCoord2f(PI, 0); glVertex2f( 1, -1); + glTexCoord2f(PI, 1); glVertex2f( 1, 1); + glTexCoord2f(-PI, 1); glVertex2f(-1, 1); + glEnd(); + + glPopMatrix(); + + glutSwapBuffers(); +} + + +static void Reshape( int width, int height ) +{ + glViewport( 0, 0, width, height ); + 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 ); +} + + +static void SpecialKey( int key, int x, int y ) +{ + float 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 Key( unsigned char key, int x, int y ) +{ + (void) x; + (void) y; + switch (key) { + case 27: + exit(0); + break; + } + glutPostRedisplay(); +} + + +static void Init( void ) +{ + static const char *modulate2D = + "!!ARBfp1.0\n" + "TEMP R0;\n" + "MOV R0, {0,0,0,1};\n" + "SCS R0, fragment.texcoord[0].x; \n" + "ADD R0, R0, {1.0}.x;\n" + "MUL R0, R0, {0.5}.x;\n" + "MOV result.color, R0; \n" + "END" + ; + GLuint modulateProg; + GLuint Texture; + + if (!glutExtensionSupported("GL_ARB_fragment_program")) { + printf("Error: GL_ARB_fragment_program not supported!\n"); + exit(1); + } + printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + + /* Setup the fragment program */ + glGenProgramsARB(1, &modulateProg); + glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg); + glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, + strlen(modulate2D), (const GLubyte *)modulate2D); + + printf("glGetError = 0x%x\n", (int) glGetError()); + printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n", + (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB)); + assert(glIsProgramARB(modulateProg)); + + glEnable(GL_FRAGMENT_PROGRAM_ARB); + + /* Load texture */ + glGenTextures(1, &Texture); + glBindTexture(GL_TEXTURE_2D, Texture); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + if (!LoadRGBMipmaps(TEXTURE_FILE, GL_RGB)) { + printf("Error: couldn't load texture image file %s\n", TEXTURE_FILE); + exit(1); + } + /* XXX this enable shouldn't really be needed!!! */ + glEnable(GL_TEXTURE_2D); + + glClearColor(.3, .3, .3, 0); +} + + +int main( int argc, char *argv[] ) +{ + glutInit( &argc, argv ); + glutInitWindowPosition( 0, 0 ); + glutInitWindowSize( 250, 250 ); + glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH ); + glutCreateWindow(argv[0]); + glutReshapeFunc( Reshape ); + glutKeyboardFunc( Key ); + glutSpecialFunc( SpecialKey ); + glutDisplayFunc( Display ); + Init(); + glutMainLoop(); + return 0; +} diff --git a/progs/tests/tex1d.c b/progs/tests/tex1d.c new file mode 100644 index 0000000000..1fab849dd3 --- /dev/null +++ b/progs/tests/tex1d.c @@ -0,0 +1,139 @@ + +/* Exercise 1D textures + */ + +#include +#include +#include +#include +#include +#include "GL/glut.h" + +static GLuint Window = 0; +static GLuint TexObj[2]; +static GLfloat Angle = 0.0f; + + +static void draw( void ) +{ + glClear( GL_COLOR_BUFFER_BIT ); + + glColor3f( 1.0, 1.0, 1.0 ); + + /* draw first polygon */ + glPushMatrix(); + glTranslatef( -1.0, 0.0, 0.0 ); + glRotatef( Angle, 0.0, 0.0, 1.0 ); + glBindTexture( GL_TEXTURE_1D, TexObj[0] ); + glBegin( GL_POLYGON ); + glTexCoord1f( 0.0 ); glVertex2f( -1.0, -1.0 ); + glTexCoord1f( 1.0 ); glVertex2f( 1.0, -1.0 ); + glTexCoord1f( 1.0 ); glVertex2f( 1.0, 1.0 ); + glTexCoord1f( 0.0 ); glVertex2f( -1.0, 1.0 ); + glEnd(); + glPopMatrix(); + + glutSwapBuffers(); +} + + + +static void idle( void ) +{ + Angle += 2.0; + glutPostRedisplay(); +} + + + +/* change view Angle, exit upon ESC */ +static void key(unsigned char k, int x, int y) +{ + (void) x; + (void) y; + switch (k) { + case 27: + exit(0); + } +} + + + +/* new window size or exposure */ +static void reshape( int width, int height ) +{ + glViewport(0, 0, (GLint)width, (GLint)height); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + /* glOrtho( -3.0, 3.0, -3.0, 3.0, -10.0, 10.0 );*/ + glFrustum( -2.0, 2.0, -2.0, 2.0, 6.0, 20.0 ); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef( 0.0, 0.0, -8.0 ); +} + + +static void init( void ) +{ + GLubyte tex[256][3]; + GLint i; + + + glDisable( GL_DITHER ); + + /* Setup texturing */ + glEnable( GL_TEXTURE_1D ); + glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL ); + + + /* generate texture object IDs */ + glGenTextures( 2, TexObj ); + + /* setup first texture object */ + glBindTexture( GL_TEXTURE_1D, TexObj[0] ); + + + for (i = 0; i < 256; i++) { + GLfloat f; + + /* map 0..255 to -PI .. PI */ + f = ((i / 255.0) - .5) * (3.141592 * 2); + + f = sin(f); + + /* map -1..1 to 0..255 */ + tex[i][0] = (f+1.0)/2.0 * 255.0; + tex[i][1] = 0; + tex[i][2] = 0; + } + + glTexImage1D( GL_TEXTURE_1D, 0, 3, 256, 0, GL_RGB, GL_UNSIGNED_BYTE, tex ); + glTexParameteri( GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); + glTexParameteri( GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); + glTexParameteri( GL_TEXTURE_1D, GL_TEXTURE_WRAP_S, GL_REPEAT ); + glTexParameteri( GL_TEXTURE_1D, GL_TEXTURE_WRAP_T, GL_REPEAT ); +} + + + +int main( int argc, char *argv[] ) +{ + glutInit(&argc, argv); + glutInitWindowPosition(0, 0); + glutInitWindowSize(300, 300); + glutInitDisplayMode( GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE ); + + Window = glutCreateWindow("Texture Objects"); + if (!Window) { + exit(1); + } + + init(); + + glutReshapeFunc( reshape ); + glutKeyboardFunc( key ); +/* glutIdleFunc( idle ); */ + glutDisplayFunc( draw ); + glutMainLoop(); + return 0; +} -- cgit v1.2.3