progs/fp: pass texcoord to triangle, add a test shader

progs/fp/fp-tri.c

@@ -210,11 +210,17 @@ static void Display(void)
    glProgramLocalParameter4fARB(GL_FRAGMENT_PROGRAM_ARB, 0, 1.0, 1.0, 0.0, 0.0);
    glProgramLocalParameter4fARB(GL_FRAGMENT_PROGRAM_ARB, 1, 0.0, 0.0, 1.0, 1.0);
    glBegin(GL_TRIANGLES);
+
    glColor3f(0,0,1);
+   glTexCoord3f(1,1,0);
    glVertex3f( 0.9, -0.9, -30.0);
+
    glColor3f(1,0,0);
+   glTexCoord3f(1,-1,0);
    glVertex3f( 0.9,  0.9, -30.0);
+
    glColor3f(0,1,0);
+   glTexCoord3f(-1,0,0);
    glVertex3f(-0.9,  0.0, -30.0);
    glEnd();
 

progs/fp/kil-texcoord-sgt.txt

@@ -0,0 +1,8 @@
+!!ARBfp1.0
+TEMP R0;
+MUL R0.xy, fragment.texcoord[0], fragment.texcoord[0];
+ADD R0.x, R0.x, R0.y;
+SGE R0.y, R0.x, fragment.texcoord[0].w;
+KIL -R0.y;
+MOV result.color, fragment.color;
+END