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			 int width, int height, int stride, int name);

GLuint create_framebuffer(int width, int height, GLuint *tex);

  //  surface = eglCreateWindowSurface(dpy,config, (EGLNativeWindowType)gs, NULL);

  //  if (surface == EGL_NO_SURFACE)

  //      printf("failed to create surface");

    if (!eglMakeCurrent(dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, context))

        printf("failed to make window current");

    front = create_framebuffer(400,300,&f_tex);

    glMatrixMode(GL_PROJECTION);

	glLoadIdentity();

    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);

	glMatrixMode(GL_MODELVIEW);

	glLoadIdentity();

	glViewport(0, 0, 400, 300);

    glClearColor( 0, 0, 0, 1);

    glClear(GL_COLOR_BUFFER_BIT);

    glBegin(GL_QUADS);

    glColor3f(1,0,0);

    glVertex3f( 0.9, -0.9, -30.0);

    glColor3f(1,1,0);

    glVertex3f( 0.9,  0.9, -30.0);

    glColor3f(1,1,1);

    glVertex3f( 0.1,  0.9, -30.0);

        }

	    "   vec3 cg = texture2D(sampler, source_texture).rgb;\n"

	GLuint blit_prog;

	GLint  vs_shader, fs_shader;

  asm volatile ("int3");

 	glAttachShader(blit_prog, fs_shader);

 	glBindAttribLocation(blit_prog, 0, "v_position");

	glBindAttribLocation(blit_prog, 1, "v_texcoord0");

		glGetProgramiv(blit_prog, GL_INFO_LOG_LENGTH, &size);

		info = malloc(size);

		printf("Failed to link: %s\n", info);

		printf("GLSL link failure\n");

	}

    GLint sampler;

	float vertices[8], texcoords[8];

    GLfloat dst_xscale, dst_yscale; //, src_xscale, src_yscale;

    int l, t, r, b, stride;

	sampler = glGetUniformLocation(blit_prog,"sampler");

	glUseProgram(blit_prog);

	glUniform1i(sampler, 0);

	glVertexAttribPointer(0, 2, GL_FLOAT,GL_FALSE, 2 * sizeof(float),vertices);

	glEnableVertexAttribArray(0);

	glActiveTexture(GL_TEXTURE0);

	glBindTexture(GL_TEXTURE_2D, f_tex);

	glTexParameteri(GL_TEXTURE_2D,

				  GL_TEXTURE_MIN_FILTER,

				  GL_NEAREST);

	glTexParameteri(GL_TEXTURE_2D,

				  GL_TEXTURE_MAG_FILTER,

				  GL_NEAREST);

	glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float),texcoords);

	glEnableVertexAttribArray(1);

	dst_xscale = 1.0/1024;

	dst_yscale = 1.0/768;

//	src_xscale = 1.0/400;

//	src_yscale = 1.0/300;

    stride = 2;

	l = 20;

	t = 20;

	r = l+400;

	b = t+300;

    float t0, t1, t2, t5;

    vertices[0]     = t0 = 2*l*dst_xscale - 1.0;

    vertices[1 * 2] = t2 = 2*r*dst_xscale - 1.0;

    vertices[2 * 2] = t2;

    vertices[3 * 2] = t0;

    vertices[1]     = t1 = 2*t*dst_yscale - 1.0;

    vertices[2*2+1] = t5 = 2*b*dst_yscale - 1.0;

    vertices[1*2+1] = t1;

    vertices[3*2+1] = t5;

    texcoords[0]    = 0.0;

    texcoords[1]    = 0.0;

    texcoords[1*2]  = 1.0;

    texcoords[1*2+1]= 0.0;

    texcoords[2*2]  = 1.0;

    texcoords[2*2+1]= 1.0;

    texcoords[3*2]  = 0.0;

	return image;

}

GLint create_shader(GLenum type, const char *source)

{

	GLint ok;

	GLint prog;

	prog = glCreateShader(type);

	glShaderSource(prog, 1, (const GLchar **) &source, NULL);

	glCompileShader(prog);

	glGetShaderiv(prog, GL_COMPILE_STATUS, &ok);

	if (!ok) {

		GLchar *info;

		GLint size;

		glGetShaderiv(prog, GL_INFO_LOG_LENGTH, &size);

		info = malloc(size);

		glGetShaderInfoLog(prog, size, NULL, info);

		printf("Failed to compile %s: %s\n",

                type == GL_FRAGMENT_SHADER ? "FS" : "VS",info);

		printf("Program source:\n%s", source);

		printf("GLSL compile failure\n");

	}

	return prog;

}

GLuint create_framebuffer(int width, int height, GLuint *tex)

{

    GLuint buffer;

    glGenTextures(1, tex);

    glBindTexture(GL_TEXTURE_2D, *tex);

    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);

    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA,

			       GL_UNSIGNED_BYTE, NULL);

    glBindTexture(GL_TEXTURE_2D, 0);

    glGenFramebuffers(1, &buffer);

    glBindFramebuffer(GL_FRAMEBUFFER, buffer);

    glFramebufferTexture2D(GL_FRAMEBUFFER,

					 GL_COLOR_ATTACHMENT0,