render.h

   1 /*
   2  * Copyright (C) 2021-2022 Mt.ZERO Software, Harry Godden - All Rights Reserved
   3  */
   4 #pragma once
   5 #include "common.h"
   6 #include "model.h"
   7 #include "camera.h"
   8
   9 #include "shaders/blit.h"
  10 #include "shaders/blitblur.h"
  11 #include "shaders/blitcolour.h"
  12 #include "shaders/blit_transition.h"
  13
  14 #define WORKSHOP_PREVIEW_WIDTH  504
  15 #define WORKSHOP_PREVIEW_HEIGHT 336
  16
  17 static f32 k_render_scale  = 1.0f;
  18 static i32 k_blur_effect   = 1;
  19 static f32 k_blur_strength = 0.3f;
  20 static f32 k_fov           = 0.86f;
  21 static f32 k_cam_height    = 0.8f;
  22
  23 typedef struct framebuffer framebuffer;
  24
  25 /*
  26  * All standard buffers used in rendering
  27  */
  28 static struct pipeline{
  29    glmesh fsquad;
  30
  31    framebuffer *fb_main,
  32                *fb_water_reflection,
  33                *fb_water_beneath,
  34                *fb_workshop_preview,
  35                *fb_network_status;
  36    int ready;
  37 }
  38 gpipeline;
  39
  40 struct framebuffer{
  41    const char *display_name;
  42    int         resolution_div,   /* definition */
  43                fixed_w,
  44                fixed_h,
  45
  46                render_w,         /* runtime */
  47                render_h;
  48
  49    struct framebuffer_attachment{
  50       const char *display_name;
  51
  52       enum framebuffer_attachment_type{
  53          k_framebuffer_attachment_type_none,
  54          k_framebuffer_attachment_type_texture,
  55          k_framebuffer_attachment_type_renderbuffer,
  56          k_framebuffer_attachment_type_texture_depth
  57       }
  58       purpose;
  59
  60       enum framebuffer_quality_profile{
  61          k_framebuffer_quality_all,
  62          k_framebuffer_quality_high_only
  63       }
  64       quality;
  65
  66       GLenum internalformat,
  67              format,
  68              type,
  69              attachment;
  70
  71       GLuint id;
  72
  73       /* Runtime */
  74       int debug_view;
  75    }
  76    attachments[5];
  77    GLuint fb;
  78    framebuffer **link;
  79 }
  80 extern framebuffers[];
  81
  82
  83 struct shader_props_standard
  84 {
  85    u32 tex_diffuse;
  86 };
  87
  88 struct shader_props_terrain
  89 {
  90    u32 tex_diffuse;
  91    v2f blend_offset;
  92    v4f sand_colour;
  93 };
  94
  95 struct shader_props_vertex_blend
  96 {
  97    u32 tex_diffuse;
  98    v2f blend_offset;
  99 };
 100
 101 struct shader_props_water
 102 {
 103    v4f shore_colour;
 104    v4f deep_colour;
 105    f32 fog_scale;
 106    f32 fresnel;
 107    f32 water_sale;
 108    v4f wave_speed;
 109 };
 110
 111 struct shader_props_cubemapped
 112 {
 113    u32 tex_diffuse;
 114    u32 cubemap_entity;
 115    v4f tint;
 116 };
 117
 118 void render_init(void);
 119 void render_fsquad(void);
 120 void render_fsquad1(void);
 121 void render_fsquad2(void);
 122 void render_view_framebuffer_ui(void);
 123 void render_fb_bind_texture( framebuffer *fb, int attachment, int slot );
 124 void render_fb_inverse_ratio( framebuffer *fb, v2f inverse );
 125 void render_fb_get_current_res( struct framebuffer *fb, int *x, int *y );
 126 void render_fb_bind( framebuffer *fb, int use_scaling );
 127 void render_fb_bind_texture( framebuffer *fb, int attachment, int slot );
 128 void render_fb_allocate( struct framebuffer *fb );
 129 void render_fb_resize(void);