--- /dev/null
+/* Test GL_ARB_fragment_program */
+
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Display( void )
+{
+ glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+
+ glPushMatrix();
+
+ glColor4f(0, 0.5, 0, 1);
+ glColor4f(0, 1, 0, 1);
+ glBegin(GL_POLYGON);
+ glVertex2f(-1, -1);
+ glVertex2f( 1, -1);
+ glVertex2f( 0, 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, -15.0 );
+}
+
+
+static void Key( unsigned char key, int x, int y )
+{
+ (void) x;
+ (void) y;
+ switch (key) {
+ case 27:
+ exit(0);
+ break;
+ }
+ glutPostRedisplay();
+}
+
+static void load_program(const char *prog, GLuint prognum)
+{
+ int a;
+ GLint errorpos, errno;
+
+ glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, prognum);
+ glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+ strlen(prog), (const GLubyte *) prog);
+
+ assert(glIsProgramARB(prognum));
+ errno = glGetError();
+ printf("glGetError = %d\n", errno);
+ if (errno != GL_NO_ERROR)
+ {
+ glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorpos);
+ printf("errorpos: %d\n", errorpos);
+ printf("%s\n", glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+ for (a=-10; a<10; a++)
+ {
+ if ((errorpos+a < 0) || (errorpos+a >= strlen(prog))) continue;
+ printf("%c", prog[errorpos+a]);
+ }
+ printf("\n");
+ exit(1);
+ }
+}
+
+static void Init( void )
+{
+ static const char *prog0 =
+ "!!ARBfp1.0\n"
+ "TEMP R0, RC, HC, H0, H1, H2, H3, H30 ;\n"
+ "MUL result.color, R0, fragment.position; \n"
+ "ADD result.color, H3, fragment.texcoord; \n"
+ "ADD_SAT result.color, H3, fragment.texcoord; \n"
+ "MUL result.color.xy, R0.wzyx, fragment.position; \n"
+ "MUL result.color, H0, fragment.position; \n"
+ "MUL result.color, -H0, fragment.position; \n"
+ "MOV RC, H1; \n"
+ "MOV HC, H2; \n"
+ "END \n"
+ ;
+ /* masked updates, defines, declarations */
+ static const char *prog1 =
+ "!!ARBfp1.0\n"
+ "PARAM foo = {1., 2., 3., 4.}; \n"
+ "PARAM foo2 = 5.; \n"
+ "PARAM foo3 = {5., 6., 7., 8.}; \n"
+ "PARAM bar = 3.; \n"
+ "TEMP R0, R1, RC, EQ, NE, bar2; \n"
+ "ALIAS bar3 = bar; \n"
+ "MOV result.color.xy, R0; \n"
+ "MOV result.color, R0; \n"
+ "MOV result.color.xyzw, R0; \n"
+ "MOV result.color.xy, R0; \n"
+ "MOV RC.x, R1.x; \n"
+ "KIL NE; \n"
+ "KIL EQ.xyxy; \n"
+ "END \n"
+ ;
+
+ /* texture instructions */
+ static const char *prog2 =
+ "!!ARBfp1.0\n"
+ "TEMP R0, R1, R2, R3;\n"
+ "TEX R0, fragment.texcoord, texture[1], 2D; \n"
+ "TEX R1, fragment.texcoord[1], texture[1], CUBE; \n"
+ "TEX R2, fragment.texcoord[2], texture[2], 3D; \n"
+ "TXP R3, fragment.texcoord[3], texture[3], RECT; \n"
+ "MUL result.color, R0, fragment.color; \n"
+ "END \n"
+ ;
+
+ /* test negation, absolute value */
+ static const char *prog3 =
+ "!!ARBfp1.0\n"
+ "TEMP R0, R1;\n"
+ "MOV R0, R1; \n"
+ "MOV R0, -R1; \n"
+ "MOV result.color, R0; \n"
+ "END \n"
+ ;
+
+ /* literal constant sources */
+ static const char *prog4 =
+ "!!ARBfp1.0\n"
+ "TEMP R0, R1;\n"
+ "PARAM Pi = 3.14159; \n"
+ "MOV R0, {1., -2., +3., 4.}; \n"
+ "MOV R0, 5.; \n"
+ "MOV R0, -5.; \n"
+ "MOV R0, 5.; \n"
+ "MOV R0, Pi; \n"
+ "MOV result.color, R0; \n"
+ "END \n"
+ ;
+
+ /* change the fragment color in a simple way */
+ static const char *prog10 =
+ "!!ARBfp1.0\n"
+ "PARAM blue = {0., 0., 1., 0.};\n"
+ "PARAM color = {1., 0., 0., 1.};\n"
+ "TEMP R0; \n"
+ "MOV R0, fragment.color; \n"
+ "#ADD result.color, R0, fragment.color; \n"
+ "#ADD result.color, blue, fragment.color; \n"
+ "#ADD result.color, {1., 0., 0., 0.}, fragment.color; \n"
+ "ADD result.color, color, fragment.color; \n"
+ "END \n"
+ ;
+
+ GLuint progs[20];
+
+ glGenProgramsARB(20, progs);
+ assert(progs[0]);
+ assert(progs[1]);
+ assert(progs[0] != progs[1]);
+
+
+ printf("program 0:\n");
+ load_program(prog0, progs[0]);
+ printf("program 1:\n");
+ load_program(prog1, progs[1]);
+ printf("program 2:\n");
+ load_program(prog2, progs[2]);
+ printf("program 3:\n");
+ load_program(prog3, progs[3]);
+ printf("program 4:\n");
+ load_program(prog4, progs[4]);
+ printf("program 10:\n");
+ load_program(prog10, progs[5]);
+
+
+ glEnable(GL_FRAGMENT_PROGRAM_ARB);
+ glEnable(GL_ALPHA_TEST);
+ glAlphaFunc(GL_ALWAYS, 0.0);
+}
+
+
+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 );
+ glutDisplayFunc( Display );
+ Init();
+ glutMainLoop();
+ return 0;
+}
--- /dev/null
+/* GL_ARB_fragment_program texture test */
+
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+#include "readtex.c"
+
+
+#define TEXTURE_FILE "../images/girl.rgb"
+
+static GLfloat Xrot = 0.0, Yrot = 0.0, Zrot = 0.0;
+
+
+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);
+ glColor4f(1.0, 1.0, 1.0, 1); glTexCoord2f(0, 0); glVertex2f(-1, -1);
+ glColor4f(0.2, 0.2, 1.0, 1); glTexCoord2f(1, 0); glVertex2f( 1, -1);
+ glColor4f(0.2, 1.0, 0.2, 1); glTexCoord2f(1, 1); glVertex2f( 1, 1);
+ glColor4f(1.0, 0.2, 0.2, 1); glTexCoord2f(0, 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"
+ "TEX R0, fragment.texcoord[0], texture[0], 2D; \n"
+ "MUL result.color, R0, fragment.color; \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;
+}
projects / mesa.git / commitdiff