nuclear@2: #include <stdio.h>
nuclear@2: #include <assert.h>
nuclear@3: #include <unistd.h>
nuclear@1: #include "opengl.h"
nuclear@0: #include "istereo.h"
nuclear@2: #include "sanegl.h"
nuclear@2: #include "sdr.h"
nuclear@4: #include "respath.h"
nuclear@14: #include "tex.h"
nuclear@4: 
nuclear@4: static unsigned int get_shader_program(const char *vfile, const char *pfile);
nuclear@2: 
nuclear@2: unsigned int prog;
nuclear@14: unsigned int tex;
nuclear@0: 
nuclear@0: int init(void)
nuclear@0: {
nuclear@4: 	add_resource_path("sdr");
nuclear@14: 	add_resource_path("data");
nuclear@3: 
nuclear@4: 	if(!(prog = get_shader_program("test.v.glsl", "test.p.glsl"))) {
nuclear@2: 		fprintf(stderr, "failed to load shader program\n");
nuclear@2: 		return -1;
nuclear@2: 	}
nuclear@14: 
nuclear@14: 	if(!(tex = load_texture(find_resource("tiles.ppm", 0, 0)))) {
nuclear@14: 		fprintf(stderr, "failed to load texture\n");
nuclear@14: 		return -1;
nuclear@14: 	}
nuclear@14: 
nuclear@0: 	return 0;
nuclear@0: }
nuclear@0: 
nuclear@0: void cleanup(void)
nuclear@0: {
nuclear@2: 	free_program(prog);
nuclear@0: }
nuclear@0: 
nuclear@0: void redraw(void)
nuclear@0: {
nuclear@5: 	glClearColor(0.4, 0.6, 1.0, 1.0);
nuclear@0: 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
nuclear@2: 
nuclear@2: 	bind_program(prog);
nuclear@2: 
nuclear@13: 	gl_matrix_mode(GL_MODELVIEW);
nuclear@2: 	gl_load_identity();
nuclear@13: 	gl_translatef(0, 0, -8);
nuclear@2: 
nuclear@14: 	glEnable(GL_TEXTURE_2D);
nuclear@14: 	glBindTexture(GL_TEXTURE_2D, tex);
nuclear@6: 
nuclear@13: 	gl_begin(GL_QUADS);
nuclear@14: 	gl_texcoord2f(0, 0);
nuclear@2: 	gl_color3f(1, 0, 0);
nuclear@2: 	gl_vertex3f(-1, -1, 0);
nuclear@14: 	gl_texcoord2f(1, 0);
nuclear@2: 	gl_color3f(0, 1, 0);
nuclear@2: 	gl_vertex3f(1, -1, 0);
nuclear@14: 	gl_texcoord2f(1, 1);
nuclear@2: 	gl_color3f(0, 0, 1);
nuclear@2: 	gl_vertex3f(1, 1, 0);
nuclear@14: 	gl_texcoord2f(0, 1);
nuclear@2: 	gl_color3f(1, 1, 0);
nuclear@2: 	gl_vertex3f(-1, 1, 0);
nuclear@13: 	gl_end();
nuclear@2: 
nuclear@14: 	glDisable(GL_TEXTURE_2D);
nuclear@14: 
nuclear@2: 	assert(glGetError() == GL_NO_ERROR);
nuclear@0: }
nuclear@2: 
nuclear@2: void reshape(int x, int y)
nuclear@2: {
nuclear@2: 	glViewport(0, 0, x, y);
nuclear@2: 
nuclear@2: 	gl_matrix_mode(GL_PROJECTION);
nuclear@2: 	gl_load_identity();
nuclear@2: 	glu_perspective(45.0, (float)x / (float)y, 1.0, 1000.0);
nuclear@2: }
nuclear@4: 
nuclear@4: static unsigned int get_shader_program(const char *vfile, const char *pfile)
nuclear@4: {
nuclear@4: 	unsigned int prog, vs, ps;
nuclear@4: 
nuclear@4: 	if(!(vs = get_vertex_shader(find_resource(vfile, 0, 0)))) {
nuclear@4: 		return -1;
nuclear@4: 	}
nuclear@4: 	if(!(ps = get_pixel_shader(find_resource(pfile, 0, 0)))) {
nuclear@4: 		return -1;
nuclear@4: 	}
nuclear@4: 
nuclear@4: 	if(!(prog = create_program_link(vs, ps))) {
nuclear@4: 		return -1;
nuclear@4: 	}
nuclear@4: 	return prog;
nuclear@4: }