X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=cli%2Fsrc%2Fglxsimple.c;h=a4c9560dfb9e908b8d38ba8ca34486f08c67370c;hb=8351c1e187d8f65477db05a07bacd5d184c2b950;hp=0baf27f204955885569eaa8cb52ead2b83e37462;hpb=887c7197b508269486750075ec111a7507c5a236;p=apitrace-tests

diff --git a/cli/src/glxsimple.c b/cli/src/glxsimple.c
index 0baf27f..a4c9560 100644
--- a/cli/src/glxsimple.c
+++ b/cli/src/glxsimple.c
@@ -118,11 +118,11 @@ paint_rgb_using_glsl (double r, double g, double b)
 	glUseProgram (0);
 }
 
-static void
-paint_rgb_using_texture (double r, double g, double b)
+static GLuint
+create_rgb_texture (double r, double g, double b)
 {
 	uint8_t data[3];
-	GLuint texture;
+	GLuint texture = 0;
 
 	data[0] = (uint8_t) (255.0 * r);
 	data[1] = (uint8_t) (255.0 * g);
@@ -137,6 +137,14 @@ paint_rgb_using_texture (double r, double g, double b)
 		      1, 1, 0,
 		      GL_RGB, GL_UNSIGNED_BYTE, data);
 
+	return texture;
+}
+
+static void
+paint_using_texture (GLuint texture)
+{
+	glBindTexture (GL_TEXTURE_2D, texture);
+
 	glEnable (GL_TEXTURE_2D);
 
 	draw_fullscreen_textured_quad ();
@@ -147,7 +155,10 @@ paint_rgb_using_texture (double r, double g, double b)
 static void
 draw (Display *dpy, Window window, int width, int height)
 {
+#define PASSES 2
+	int i;
 	GLenum glew_err;
+	GLuint texture[PASSES];
 
         int visual_attr[] = {
                 GLX_RGBA,
@@ -179,17 +190,33 @@ draw (Display *dpy, Window window, int width, int height)
 
 	set_2d_projection ();
 
-	/* Frame 1: Draw a solid (magenta) frame using glClear. */
-	paint_rgb_using_clear (1, 0, 1);
-        glXSwapBuffers (dpy, window);
+/* Simply count through some colors, frame by frame. */
+#define RGB(frame) (((frame+1)/4) % 2), (((frame+1)/2) % 2), ((frame+1) % 2)
+
+	int frame = 0;
+	for (i = 0; i < PASSES; i++) {
+
+		/* Frame: Draw a solid frame using glClear. */
+		paint_rgb_using_clear (RGB(frame));
+		glXSwapBuffers (dpy, window);
+		frame++;
 
-	/* Frame 2: Draw a solid (yellow) frame using GLSL. */
-	paint_rgb_using_glsl (1, 1, 0);
-        glXSwapBuffers (dpy, window);
+		/* Frame: Draw a solid frame using GLSL. */
+		paint_rgb_using_glsl (RGB(frame));
+		glXSwapBuffers (dpy, window);
+		frame++;
+
+		/* Frame: Draw a solid frame using a texture. */
+		texture[i] = create_rgb_texture (RGB(frame));
+		paint_using_texture (texture[i]);
+		glXSwapBuffers (dpy, window);
+		frame++;
+	}
 
-	/* Frame 3: Draw a solid (cyan) frame using a texture. */
-	paint_rgb_using_texture (0, 1, 1);
+	/* Draw another frame with a re-used texture. */
+	paint_using_texture (texture[0]);
 	glXSwapBuffers (dpy, window);
+	frame++;
 
 	/* Cleanup */
         glXDestroyContext (dpy, ctx);