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 #include "shader_props.h"
   9
  10 #include "shaders/blit.h"
  11 #include "shaders/blitblur.h"
  12 #include "shaders/blitcolour.h"
  13 #include "shaders/blit_transition.h"
  14
  15 #define WORKSHOP_PREVIEW_WIDTH  504
  16 #define WORKSHOP_PREVIEW_HEIGHT 336
  17
  18 static f32 k_render_scale  = 1.0f;
  19 static i32 k_blur_effect   = 1;
  20 static f32 k_blur_strength = 0.3f;
  21 static f32 k_fov           = 0.86f;
  22 static f32 k_cam_height    = 0.8f;
  23
  24 typedef struct framebuffer framebuffer;
  25
  26 /*
  27  * All standard buffers used in rendering
  28  */
  29 static struct pipeline{
  30    glmesh fsquad;
  31
  32    framebuffer *fb_main,
  33                *fb_water_reflection,
  34                *fb_water_beneath,
  35                *fb_workshop_preview,
  36                *fb_network_status;
  37    int ready;
  38 }
  39 gpipeline;
  40
  41 struct framebuffer{
  42    const char *display_name;
  43    int         resolution_div,   /* definition */
  44                fixed_w,
  45                fixed_h,
  46
  47                render_w,         /* runtime */
  48                render_h;
  49
  50    struct framebuffer_attachment{
  51       const char *display_name;
  52
  53       enum framebuffer_attachment_type{
  54          k_framebuffer_attachment_type_none,
  55          k_framebuffer_attachment_type_texture,
  56          k_framebuffer_attachment_type_renderbuffer,
  57          k_framebuffer_attachment_type_texture_depth
  58       }
  59       purpose;
  60
  61       enum framebuffer_quality_profile{
  62          k_framebuffer_quality_all,
  63          k_framebuffer_quality_high_only
  64       }
  65       quality;
  66
  67       GLenum internalformat,
  68              format,
  69              type,
  70              attachment;
  71
  72       GLuint id;
  73
  74       /* Runtime */
  75       int debug_view;
  76    }
  77    attachments[5];
  78    GLuint fb;
  79    framebuffer **link;
  80 }
  81 extern framebuffers[];
  82
  83 void render_init(void);
  84 void render_fsquad(void);
  85 void render_fsquad1(void);
  86 void render_fsquad2(void);
  87 void render_view_framebuffer_ui(void);
  88 void render_fb_bind_texture( framebuffer *fb, int attachment, int slot );
  89 void render_fb_inverse_ratio( framebuffer *fb, v2f inverse );
  90 void render_fb_get_current_res( struct framebuffer *fb, int *x, int *y );
  91 void render_fb_bind( framebuffer *fb, int use_scaling );
  92 void render_fb_bind_texture( framebuffer *fb, int attachment, int slot );
  93 void render_fb_allocate( struct framebuffer *fb );
  94 void render_fb_resize(void);