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More MAD optimizations

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Arzed Five 2016-07-20 23:25:20 +01:00
parent 18a6182b0d
commit a61f86864f
1 changed files with 3 additions and 5 deletions
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8
handheld/gameboy/shader-files/gb-pass0.slang
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@ -71,12 +71,12 @@ layout(location = 3) out vec2 one_texel;
#define scaled_video_out (global.SourceSize.xy * vec2(video_scale)) #define scaled_video_out (global.SourceSize.xy * vec2(video_scale))
//it's... half a pixel //it's... half a pixel
#define half_pixel (vec2(0.5) / global.OutputSize.xy) #define half_pixel (vec2(0.5) * global.OutputSize.zw)
void main() void main()
{ {
// Remaps position to integer scaled output // Remaps position to integer scaled output
gl_Position = global.MVP * Position / vec4( vec2(global.OutputSize.xy / scaled_video_out), 1.0, 1.0 ); gl_Position = global.MVP * Position / vec4( vec2(global.OutputSize.zw * scaled_video_out), 1.0, 1.0 );
vTexCoord = TexCoord + half_pixel; vTexCoord = TexCoord + half_pixel;
dot_size = global.SourceSize.zw; dot_size = global.SourceSize.zw;
one_texel = 1.0 / (global.SourceSize.xy * video_scale); one_texel = 1.0 / (global.SourceSize.xy * video_scale);
@ -121,11 +121,9 @@ layout(set = 0, binding = 9) uniform sampler2D OriginalHistory7;
void main() void main()
{ {
// Determine if the corrent texel lies on a dot or in the space between dots // Determine if the corrent texel lies on a dot or in the space between dots
float is_on_dot; float is_on_dot = 0.0;
if ( mod(vTexCoord.x, dot_size.x) > one_texel.x && mod(vTexCoord.y, dot_size.y) > one_texel.y ) if ( mod(vTexCoord.x, dot_size.x) > one_texel.x && mod(vTexCoord.y, dot_size.y) > one_texel.y )
is_on_dot = 1.0; is_on_dot = 1.0;
else
is_on_dot = 0.0;
// Sample color from the current and previous frames, apply response time modifier // Sample color from the current and previous frames, apply response time modifier
// Response time effect implmented through an exponential dropoff algorithm // Response time effect implmented through an exponential dropoff algorithm