dungeon_crawler
diff prototype/src/renderer.cc @ 15:3a3236a4833c
adding shaders and renderer abstraction
author | John Tsiombikas <nuclear@member.fsf.org> |
---|---|
date | Sun, 19 Aug 2012 23:09:30 +0300 |
parents | |
children | 91180ee7b7d9 |
line diff
1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/prototype/src/renderer.cc Sun Aug 19 23:09:30 2012 +0300 1.3 @@ -0,0 +1,77 @@ 1.4 +#include <stdio.h> 1.5 +#include <stdlib.h> 1.6 +#include <string.h> 1.7 +#include <limits.h> 1.8 +#include "opengl.h" 1.9 +#include "renderer.h" 1.10 +#include "sdr.h" 1.11 +#include "datapath.h" 1.12 + 1.13 +#define MRT_COUNT 4 1.14 + 1.15 +static const char *mrt_sdr_file[][2] = { 1.16 + {0, "mrt0.p.glsl"}, 1.17 + {0, "mrt1.p.glsl"}, 1.18 + {0, "mrt2.p.glsl"}, 1.19 + {0, "mrt3.p.glsl"} 1.20 +}; 1.21 + 1.22 +static unsigned int mrt_prog[MRT_COUNT]; 1.23 +static unsigned int deferred_prog; 1.24 + 1.25 +bool init_renderer() 1.26 +{ 1.27 + char vsfile[PATH_MAX], psfile[PATH_MAX]; 1.28 + const char *fname; 1.29 + 1.30 + for(int i=0; i<MRT_COUNT; i++) { 1.31 + if((fname = datafile_path(mrt_sdr_file[i][0]))) { 1.32 + strcpy(vsfile, mrt_sdr_file[i][0]); 1.33 + } else { 1.34 + vsfile[0] = 0; 1.35 + } 1.36 + 1.37 + if((fname = datafile_path(mrt_sdr_file[i][1]))) { 1.38 + strcpy(psfile, mrt_sdr_file[i][1]); 1.39 + } else { 1.40 + psfile[0] = 0; 1.41 + } 1.42 + 1.43 + if(!(mrt_prog[i] = create_program_load(vsfile, psfile))) { 1.44 + fprintf(stderr, "failed to load MRT program\n"); 1.45 + return false; 1.46 + } 1.47 + } 1.48 + 1.49 + if((fname = datafile_path("deferred.v.glsl"))) { 1.50 + strcpy(vsfile, fname); 1.51 + } else { 1.52 + vsfile[0] = 0; 1.53 + } 1.54 + if((fname = datafile_path("deferred.p.glsl"))) { 1.55 + strcpy(psfile, fname); 1.56 + } else { 1.57 + psfile[0] = 0; 1.58 + } 1.59 + 1.60 + if(!(deferred_prog = create_program_load(vsfile, psfile))) { 1.61 + fprintf(stderr, "failed to load deferred shader program\n"); 1.62 + return false; 1.63 + } 1.64 + return true; 1.65 +} 1.66 + 1.67 +void destroy_renderer() 1.68 +{ 1.69 + for(int i=0; i<MRT_COUNT; i++) { 1.70 + free_program(mrt_prog[i]); 1.71 + } 1.72 + free_program(deferred_prog); 1.73 +} 1.74 + 1.75 +void render_deferred(void (*draw_func)()) 1.76 +{ 1.77 + 1.78 + 1.79 + draw_func(); 1.80 +}