+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include "opengl.h"
+#include "cgmath/cgmath.h"
#include "game.h"
+#include "sdr.h"
+#include "level.h"
+#include "util.h"
+#include "options.h"
static int ginit(void);
static void gdestroy(void);
gkeyb, gmouse, gmotion
};
+static struct level *lvl;
+
+static float proj_mat[16], view_mat[16];
+
+static float cam_theta, cam_phi, cam_dist;
+static cgm_vec3 cam_pan;
+
+static unsigned int sdr;
+
+static int rbuf_width, rbuf_height;
+static unsigned int fbo, rbuf_col, rbuf_zbuf;
+
static int ginit(void)
{
static void gdestroy(void)
{
+ glDeleteRenderbuffers(1, &rbuf_col);
+ glDeleteRenderbuffers(1, &rbuf_zbuf);
+ glDeleteFramebuffers(1, &fbo);
}
static int gstart(void)
{
+ lvl = malloc_nf(sizeof *lvl);
+ init_level(lvl);
+ if(load_level(lvl, "data/test.lvl") == -1) {
+ return -1;
+ }
+ cam_pan.x = -lvl->sx * lvl->scale;
+ cam_pan.y = 0;
+ cam_pan.z = -lvl->sy * lvl->scale;
+
+ glEnable(GL_DEPTH_TEST);
+
+ if(lvl->sdf_src) {
+ add_shader_footer(GL_FRAGMENT_SHADER, lvl->sdf_src);
+ } else {
+ add_shader_header(GL_FRAGMENT_SHADER, "#define TEST_SDF\n");
+ }
+ if(!(sdr = create_program_load("sdr/raydungeon.v.glsl", "sdr/raydungeon.p.glsl"))) {
+ return -1;
+ }
+ clear_shader_footer(GL_FRAGMENT_SHADER);
+ glUseProgram(sdr);
return 0;
}
static void gstop(void)
{
+ destroy_level(lvl);
+ free(lvl);
+
+ free_program(sdr);
}
static void gdisplay(void)
{
+ int i, j;
+ float x, y;
+ struct level_cell *cell;
+
+ glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+ glViewport(0, 0, rbuf_width, rbuf_height);
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ cgm_mtranslation(view_mat, 0, 0, -cam_dist);
+ cgm_mprerotate_x(view_mat, cam_phi);
+ cgm_mprerotate_y(view_mat, cam_theta);
+ cgm_mpretranslate(view_mat, cam_pan.x, cam_pan.y, cam_pan.z);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadMatrixf(view_mat);
+
+ glUseProgram(sdr);
+
+ glBegin(GL_TRIANGLES);
+ glTexCoord2f(0, 0); glVertex2f(-1, -1);
+ glTexCoord2f(2, 0); glVertex2f(3, -1);
+ glTexCoord2f(0, 2); glVertex2f(-1, 3);
+ glEnd();
+
+ glUseProgram(0);
+
+
+ cell = lvl->cells;
+ glBegin(GL_QUADS);
+ glColor3f(1, 1, 1);
+ glNormal3f(0, 1, 0);
+ for(i=0; i<lvl->ysz; i++) {
+ y = (float)i * lvl->scale;
+ for(j=0; j<lvl->xsz; j++) {
+ x = (float)j * lvl->scale;
+ if(cell->type) {
+ glVertex3f(x - 0.48 * lvl->scale, -1, y - 0.48 * lvl->scale);
+ glVertex3f(x + 0.48 * lvl->scale, -1, y - 0.48 * lvl->scale);
+ glVertex3f(x + 0.48 * lvl->scale, -1, y + 0.48 * lvl->scale);
+ glVertex3f(x - 0.48 * lvl->scale, -1, y + 0.48 * lvl->scale);
+ }
+ cell++;
+ }
+ }
+ glEnd();
+
+ glViewport(0, 0, win_width, win_height);
+ glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo);
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+ glBlitFramebuffer(0, 0, rbuf_width, rbuf_height, 0, 0, win_width, win_height,
+ GL_COLOR_BUFFER_BIT, GL_NEAREST);
+ glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
static void greshape(int x, int y)
{
+ cgm_mperspective(proj_mat, cgm_deg_to_rad(60), win_aspect, 0.5, 200.0);
+ glMatrixMode(GL_PROJECTION);
+ glLoadMatrixf(proj_mat);
+
+ rbuf_width = ((int)(x * opt.gfx.render_res) + 3) & 0xfffffc;
+ rbuf_height = ((int)(y * opt.gfx.render_res) + 3) & 0xfffffc;
+ printf("render buffer %dx%d\n", rbuf_width, rbuf_height);
+
+ if(!fbo) {
+ glGenFramebuffers(1, &fbo);
+ glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+
+ glGenRenderbuffers(1, &rbuf_col);
+ glBindRenderbuffer(GL_RENDERBUFFER, rbuf_col);
+ glRenderbufferStorage(GL_RENDERBUFFER, GL_RGB, rbuf_width, rbuf_height);
+ glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rbuf_col);
+
+ glGenRenderbuffers(1, &rbuf_zbuf);
+ glBindRenderbuffer(GL_RENDERBUFFER, rbuf_zbuf);
+ glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, rbuf_width, rbuf_height);
+ glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rbuf_zbuf);
+
+ glBindFramebuffer(GL_FRAMEBUFFER, 0);
+ } else {
+ glBindRenderbuffer(GL_RENDERBUFFER, rbuf_col);
+ glRenderbufferStorage(GL_RENDERBUFFER, GL_RGB, rbuf_width, rbuf_height);
+
+ glBindRenderbuffer(GL_RENDERBUFFER, rbuf_zbuf);
+ glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, rbuf_width, rbuf_height);
+ }
}
static void gkeyb(int key, int press)
{
+ if(press) {
+ switch(key) {
+ case '`':
+ if(!fullscr) {
+ game_grabmouse(-1); /* toggle */
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
}
static void gmouse(int bn, int press, int x, int y)
static void gmotion(int x, int y)
{
+ int dx = x - mouse_x;
+ int dy = y - mouse_y;
+
+ if(!(dx | dy)) return;
+
+ if(mouse_state[0]) {
+ cam_theta += dx * 0.02;
+ cam_phi += dy * 0.02;
+ if(cam_phi < -M_PI/2) cam_phi = -M_PI/2;
+ if(cam_phi > M_PI/2) cam_phi = M_PI/2;
+ }
+ if(mouse_state[1]) {
+ float up[3], right[3];
+
+ up[0] = -sin(cam_theta) * sin(cam_phi);
+ up[1] = -cos(cam_phi);
+ up[2] = cos(cam_theta) * sin(cam_phi);
+ right[0] = cos(cam_theta);
+ right[1] = 0;
+ right[2] = sin(cam_theta);
+
+ cam_pan.x += (right[0] * dx + up[0] * dy) * 0.01;
+ cam_pan.y += up[1] * dy * 0.01;
+ cam_pan.z += (right[2] * dx + up[2] * dy) * 0.01;
+ }
+ if(mouse_state[2]) {
+ cam_dist += dy * 0.01;
+ if(cam_dist < 0) cam_dist = 0;
+ }
}
projects / raydungeon / blobdiff