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-rw-r--r--progs/fp/tri-depth.c111
-rw-r--r--progs/fp/tri-depth2.c116
-rw-r--r--progs/fp/tri-depthwrite.c107
-rw-r--r--progs/fp/tri-depthwrite2.c107
4 files changed, 441 insertions, 0 deletions
diff --git a/progs/fp/tri-depth.c b/progs/fp/tri-depth.c
new file mode 100644
index 0000000000..a1f0579c8e
--- /dev/null
+++ b/progs/fp/tri-depth.c
@@ -0,0 +1,111 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+ /* scale of 10.0 gives me a visible result on nv hardware.
+ */
+ static const char *modulate2D =
+ "!!ARBfp1.0\n"
+ "MUL result.color, fragment.position.z, {10.0}.x; \n"
+ "END"
+ ;
+ GLuint modulateProg;
+
+ 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));
+
+ glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+ glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+ glViewport(0, 0, (GLint)width, (GLint)height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+ glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+ switch (key) {
+ case 27:
+ exit(1);
+ default:
+ return;
+ }
+
+ glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glBegin(GL_TRIANGLES);
+ glColor3f(0,0,1);
+ glVertex3f( 0.9, -0.9, -40.0);
+ glColor3f(1,0,0);
+ glVertex3f( 0.9, 0.9, -40.0);
+ glColor3f(0,1,0);
+ glVertex3f(-0.9, 0.0, -25.0);
+ glEnd();
+
+ glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+ GLenum type;
+
+ glutInit(&argc, argv);
+
+
+
+ glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+ type = GLUT_RGB;
+ type |= GLUT_SINGLE;
+ glutInitDisplayMode(type);
+
+ if (glutCreateWindow("First Tri") == GL_FALSE) {
+ exit(1);
+ }
+
+ Init();
+
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutDisplayFunc(Draw);
+ glutMainLoop();
+ return 0;
+}
diff --git a/progs/fp/tri-depth2.c b/progs/fp/tri-depth2.c
new file mode 100644
index 0000000000..f309628283
--- /dev/null
+++ b/progs/fp/tri-depth2.c
@@ -0,0 +1,116 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+ /* scale of 10.0 gives me a visible result on nv hardware.
+ */
+ static const char *modulate2D =
+ "!!ARBfp1.0\n"
+ "TEMP R0;\n"
+ "MUL R0, fragment.position.z, {10.0}.x;\n"
+ "MOV result.color, R0; \n"
+ "END"
+ ;
+ GLuint modulateProg;
+
+ 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));
+
+ glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+ glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+ glViewport(0, 0, (GLint)width, (GLint)height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+ glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+ switch (key) {
+ case 27:
+ exit(1);
+ default:
+ return;
+ }
+
+ glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+ glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
+ glEnable(GL_DEPTH_TEST);
+
+ glBegin(GL_TRIANGLES);
+ glColor3f(0,0,1);
+ glVertex3f( 0.9, -0.9, -30.0);
+ glVertex3f( 0.9, 0.9, -30.0);
+ glVertex3f(-0.9, 0.0, -30.0);
+ glColor3f(0,1,0);
+ glVertex3f(-0.9, -0.9, -40.0);
+ glVertex3f(-0.9, 0.9, -40.0);
+ glVertex3f( 0.9, 0.0, -25.0);
+ glEnd();
+
+ glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+ GLenum type;
+
+ glutInit(&argc, argv);
+
+
+
+ glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+ type = GLUT_RGB | GLUT_DEPTH;
+ type |= GLUT_SINGLE;
+ glutInitDisplayMode(type);
+
+ if (glutCreateWindow("First Tri") == GL_FALSE) {
+ exit(1);
+ }
+
+ Init();
+
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutDisplayFunc(Draw);
+ glutMainLoop();
+ return 0;
+}
diff --git a/progs/fp/tri-depthwrite.c b/progs/fp/tri-depthwrite.c
new file mode 100644
index 0000000000..fedeec4577
--- /dev/null
+++ b/progs/fp/tri-depthwrite.c
@@ -0,0 +1,107 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+static void Init(void)
+{
+ static const char *modulate2D =
+ "!!ARBfp1.0\n"
+ "MUL result.depth.z, fragment.color.z, {.1}.x; \n"
+ "MOV result.color.xy, fragment.color; \n"
+ "END"
+ ;
+ GLuint modulateProg;
+
+ 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));
+
+ glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+ glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+ glViewport(0, 0, (GLint)width, (GLint)height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+ glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+ switch (key) {
+ case 27:
+ exit(1);
+ default:
+ return;
+ }
+
+ glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+ glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
+ glEnable(GL_DEPTH_TEST);
+
+
+ glBegin(GL_TRIANGLES);
+ glColor4f(.8,0,.5,0);
+ glVertex3f( 0.9, -0.9, -30.0);
+ glVertex3f( 0.9, 0.9, -30.0);
+ glVertex3f(-0.9, 0.0, -30.0);
+
+ glColor4f(0,.8,.7,0);
+ glVertex3f(-0.9, -0.9, -40.0);
+ glColor4f(0,.8,.7,0);
+ glVertex3f(-0.9, 0.9, -40.0);
+ glColor4f(0,.8,.3,0);
+ glVertex3f( 0.9, 0.0, -40.0);
+ glEnd();
+
+ glFlush();
+}
+
+
+int main(int argc, char **argv)
+{
+ glutInit(&argc, argv);
+
+ glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300);
+
+ glutInitDisplayMode(GLUT_DEPTH | GLUT_RGB | GLUT_SINGLE);
+
+ if (glutCreateWindow("Depth Test") == GL_FALSE) {
+ exit(1);
+ }
+
+ Init();
+
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutDisplayFunc(Draw);
+ glutMainLoop();
+ return 0;
+}
diff --git a/progs/fp/tri-depthwrite2.c b/progs/fp/tri-depthwrite2.c
new file mode 100644
index 0000000000..5547092ec9
--- /dev/null
+++ b/progs/fp/tri-depthwrite2.c
@@ -0,0 +1,107 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+static void Init(void)
+{
+ static const char *modulate2D =
+ "!!ARBfp1.0\n"
+ "MUL result.depth.z, fragment.color.z, {.1}.x; \n"
+ "MOV result.color, fragment.color.z; \n"
+ "END"
+ ;
+ GLuint modulateProg;
+
+ 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));
+
+ glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+ glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+ glViewport(0, 0, (GLint)width, (GLint)height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+ glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+ switch (key) {
+ case 27:
+ exit(1);
+ default:
+ return;
+ }
+
+ glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+ glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
+ glEnable(GL_DEPTH_TEST);
+
+
+ glBegin(GL_TRIANGLES);
+ glColor4f(.8,0,.5,0);
+ glVertex3f( 0.9, -0.9, -30.0);
+ glVertex3f( 0.9, 0.9, -30.0);
+ glVertex3f(-0.9, 0.0, -30.0);
+
+ glColor4f(0,.8,.7,0);
+ glVertex3f(-0.9, -0.9, -40.0);
+ glColor4f(0,.8,.7,0);
+ glVertex3f(-0.9, 0.9, -40.0);
+ glColor4f(0,.8,.3,0);
+ glVertex3f( 0.9, 0.0, -40.0);
+ glEnd();
+
+ glFlush();
+}
+
+
+int main(int argc, char **argv)
+{
+ glutInit(&argc, argv);
+
+ glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300);
+
+ glutInitDisplayMode(GLUT_DEPTH | GLUT_RGB | GLUT_SINGLE);
+
+ if (glutCreateWindow("Depth Test") == GL_FALSE) {
+ exit(1);
+ }
+
+ Init();
+
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutDisplayFunc(Draw);
+ glutMainLoop();
+ return 0;
+}
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