117 lines
4.3 KiB
Text
117 lines
4.3 KiB
Text
#version 450
|
|
|
|
layout(push_constant) uniform Push
|
|
{
|
|
vec4 OutputSize;
|
|
vec4 OriginalSize;
|
|
vec4 SourceSize;
|
|
uint FrameCount;
|
|
float integer_scale;
|
|
float overscale;
|
|
float effect;
|
|
float scanline_toggle;
|
|
float SCANLINE_BASE_BRIGHTNESS;
|
|
float SCANLINE_SINE_COMP_A;
|
|
float SCANLINE_SINE_COMP_B;
|
|
float interp_toggle;
|
|
float OS_MASK_TOP;
|
|
float OS_MASK_BOTTOM;
|
|
float OS_MASK_LEFT;
|
|
float OS_MASK_RIGHT;
|
|
float aspect_x;
|
|
float aspect_y;
|
|
} params;
|
|
|
|
layout(std140, set = 0, binding = 0) uniform UBO
|
|
{
|
|
mat4 MVP;
|
|
} global;
|
|
|
|
#pragma parameter effect "Glow Brightness" 1.0 0.1 3.0 0.1
|
|
#pragma parameter aspect_x "Aspect Ratio Numerator" 64.0 1.0 256. 1.0
|
|
#pragma parameter aspect_y "Aspect Ratio Denominator" 49.0 1.0 256. 1.0
|
|
#pragma parameter integer_scale "Force Integer Scaling" 1.0 0.0 1.0 1.0
|
|
#pragma parameter overscale "Integer Overscale" 0.0 0.0 1.0 1.0
|
|
#pragma parameter interp_toggle "Sharpen Linear Scaling" 0.0 0.0 1.0 1.0
|
|
#pragma parameter scanline_toggle "Scanline Toggle" 0.0 0.0 1.0 1.0
|
|
#pragma parameter SCANLINE_BASE_BRIGHTNESS "Scanline Base Brightness" 0.95 0.0 1.0 0.01
|
|
#pragma parameter SCANLINE_SINE_COMP_A "Scanline Sine Comp A" 0.00 0.0 0.10 0.01
|
|
#pragma parameter SCANLINE_SINE_COMP_B "Scanline Intensity" 0.15 0.0 1.0 0.05
|
|
#pragma parameter OS_MASK_TOP "Overscan Mask Top" 0.0 0.0 1.0 0.005
|
|
#pragma parameter OS_MASK_BOTTOM "Overscan Mask Bottom" 0.0 0.0 1.0 0.005
|
|
#pragma parameter OS_MASK_LEFT "Overscan Mask Left" 0.0 0.0 1.0 0.005
|
|
#pragma parameter OS_MASK_RIGHT "Overscan Mask Right" 0.0 0.0 1.0 0.005
|
|
|
|
#pragma stage vertex
|
|
layout(location = 0) in vec4 Position;
|
|
layout(location = 1) in vec2 TexCoord;
|
|
layout(location = 0) out vec2 border_coord;
|
|
layout(location = 1) out vec2 screen_coord;
|
|
|
|
void main()
|
|
{
|
|
gl_Position = global.MVP * Position;
|
|
vec2 out_res = params.OutputSize.xy;
|
|
vec2 corrected_size = params.SourceSize.xy * vec2(params.aspect_x / params.aspect_y, 1.0)
|
|
* vec2(params.SourceSize.y / params.SourceSize.x, 1.0);
|
|
float full_scale = (params.integer_scale > 0.5) ? floor(params.OutputSize.y /
|
|
params.SourceSize.y) + params.overscale : params.OutputSize.y / params.SourceSize.y;
|
|
vec2 scale = (params.OutputSize.xy / corrected_size) / full_scale;
|
|
vec2 middle = vec2(0.49999, 0.49999);
|
|
vec2 diff = TexCoord.xy - middle;
|
|
screen_coord = middle + diff * scale;
|
|
border_coord = TexCoord.xy;
|
|
}
|
|
|
|
#pragma stage fragment
|
|
layout(location = 0) in vec2 border_coord;
|
|
layout(location = 1) in vec2 screen_coord;
|
|
layout(location = 0) out vec4 FragColor;
|
|
layout(set = 0, binding = 2) uniform sampler2D Source;
|
|
layout(set = 0, binding = 3) uniform sampler2D Original;
|
|
|
|
vec4 scanline(vec2 coord, vec4 frame)
|
|
{
|
|
vec2 omega = vec2(3.1415 * params.OutputSize.x, 2.0 * 3.1415 * params.SourceSize.y);
|
|
vec2 sine_comp = vec2(params.SCANLINE_SINE_COMP_A, params.SCANLINE_SINE_COMP_B);
|
|
vec3 res = frame.xyz;
|
|
vec3 scanline = res * (params.SCANLINE_BASE_BRIGHTNESS + dot(sine_comp * sin(coord * omega), vec2(1.0, 1.0)));
|
|
return vec4(scanline.x, scanline.y, scanline.z, 1.0);
|
|
}
|
|
|
|
vec2 interp_coord(vec2 coord, vec2 texture_size)
|
|
{
|
|
vec2 p = coord.xy;
|
|
p = p * texture_size.xy + vec2(0.5, 0.5);
|
|
vec2 i = floor(p);
|
|
vec2 f = p - i;
|
|
// Smoothstep - amazingly, smoothstep() is slower than calculating directly the expression!
|
|
f = f * f * f * f * (f * (f * (-20.0 * f + vec2(70.0, 70.0)) - vec2(84.0, 84.0)) + vec2(35.0, 35.0));
|
|
p = i + f;
|
|
p = (p - vec2(0.5, 0.5)) * 1.0 / texture_size;
|
|
return p;
|
|
}
|
|
|
|
vec4 border(vec2 screen_coord, vec2 border_coord, vec2 texture_size, vec2 video_size,
|
|
vec2 output_size, float frame_count, sampler2D decal)
|
|
{
|
|
vec4 background;
|
|
vec4 color = texture(Source, border_coord, 10.0) * 1.25 + 0.125; // use mipmapping to get an average of the entire screen
|
|
background = color * color * params.effect;
|
|
|
|
vec2 coord = (params.interp_toggle < 0.5) ? screen_coord : interp_coord(screen_coord, texture_size);
|
|
vec4 frame = texture(decal, coord);
|
|
frame = (params.scanline_toggle > 0.5) ? scanline(coord, frame) : frame;
|
|
vec2 fragcoord = (coord.xy);
|
|
if (fragcoord.x < 1.0 - params.OS_MASK_RIGHT && fragcoord.x > 0.0 + params.OS_MASK_LEFT &&
|
|
fragcoord.y < 1.0 - params.OS_MASK_BOTTOM && fragcoord.y > 0.0 + params.OS_MASK_TOP)
|
|
return frame;
|
|
|
|
else return background;
|
|
}
|
|
|
|
void main()
|
|
{
|
|
FragColor = border(screen_coord, border_coord, params.SourceSize.xy, params.SourceSize.xy,
|
|
params.OutputSize.xy, float(params.FrameCount), Original);
|
|
} |