X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fscr%2Ftestb.c;fp=src%2Fscr%2Ftestb.c;h=548fa0ba17dd38b726839cbcf4645272fe715d2d;hb=313480bbe9994a200ed9a4355d97a033bf0d6151;hp=b65de8a2c0900419dd9d28d496f369aea3d73ce0;hpb=ef6f5c2822eb91ea7df55e88018f566be04ad287;p=andemo

diff --git a/src/scr/testb.c b/src/scr/testb.c
index b65de8a..548fa0b 100644
--- a/src/scr/testb.c
+++ b/src/scr/testb.c
@@ -1,6 +1,56 @@
-#include "demosys.h"
-#include "opengl.h"
+#include "demo.h"
+#include "noise.h"
+
+static int init(void);
+static void destroy(void);
+static void draw(void);
+
+static unsigned int sdr_foo;
 
 void regscr_testb(void)
 {
+	static struct demoscreen scr = { "testb", init, destroy, 0, 0, 0, 0, draw };
+	dsys_add_screen(&scr);
+}
+
+static int init(void)
+{
+	if(!(sdr_foo = get_sdrprog("sdr/foo.v.glsl", "sdr/foo-notex.p.glsl"))) {
+		return -1;
+	}
+	return 0;
+}
+
+static void destroy(void)
+{
+}
+
+#define NX	16
+#define NY	10
+
+static void draw(void)
+{
+	int i, j;
+	float x, y, xr, yr, sz;
+	float t = dsys_time / 700.0f;
+
+	glUseProgram(sdr_foo);
+	gl_begin(GL_QUADS);
+	for(i=0; i<NY; i++) {
+		y = (i + 0.5f) / (NY/2.0f) - 1.0f;
+		for(j=0; j<NX; j++) {
+			x = (j + 0.5f) / (NX/2.0f) - 1.0f;
+			sz = noise2(x * 5.0f, t) * noise2(y * 5.0f, t) * 2.5f;
+			if(sz < 0.0f) sz = 0.0f;
+			if(sz > 1.0f) sz = 1.0f;
+			xr = sz / NX;
+			yr = sz / NY;
+
+			gl_vertex2f(x - xr, y - yr);
+			gl_vertex2f(x + xr, y - yr);
+			gl_vertex2f(x + xr, y + yr);
+			gl_vertex2f(x - xr, y + yr);
+		}
+	}
+	gl_end();
 }