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add some parameters to work better with console-borders

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hunterk 2016-08-17 09:05:19 -05:00
parent 7fd320b967
commit 7b250e6e2a
1 changed files with 14 additions and 3 deletions
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17
handheld/shaders/gameboy/shader-files/gb-pass0.slang
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@ -8,6 +8,8 @@ layout(push_constant) uniform Push
vec4 OriginalHistorySize1;
float baseline_alpha;
float response_time;
float console_border_enable;
float video_scale;
} registers;
layout(std140, set = 0, binding = 0) uniform UBO
@ -27,6 +29,12 @@ layout(std140, set = 0, binding = 0) uniform UBO
// Higher values result in longer color transition periods - [0, 1]
#pragma parameter response_time "LCD Response Time" 0.333 0.0 0.777 0.111
// Change scaling to enable use in console-border shaders
#pragma parameter console_border_enable "Console-Border Enable" 0.0 0.0 1.0 1.0
// Set video scale when used in console-border shaders
#pragma parameter video_scale "Video Scale" 3.0 3.0 5.0 1.0
///////////////////////////////////////////////////////////////////////////
// //
// Gameboy Classic Shader v0.2.2 //
@ -65,21 +73,24 @@ layout(location = 3) out vec2 one_texel;
// Largest integer scale of input video that will fit in the current output (y axis would typically be limiting on widescreens)
#define video_scale floor(registers.OutputSize.y * registers.SourceSize.w)
//#define video_scale floor(registers.OutputSize.y * registers.SourceSize.w) <- moved to parameter
// Size of the scaled video
#define scaled_video_out (registers.SourceSize.xy * vec2(video_scale))
//#define scaled_video_out (registers.SourceSize.xy * vec2(video_scale)) <- moved to parameter
//it's... half a pixel
#define half_pixel (vec2(0.5) * registers.OutputSize.zw)
void main()
{
float video_scale_factor = floor(registers.OutputSize.y * registers.SourceSize.w);
if (registers.console_border_enable > 0.5) video_scale_factor = registers.video_scale;
vec2 scaled_video_out = (registers.SourceSize.xy * vec2(video_scale_factor));
// Remaps position to integer scaled output
gl_Position = global.MVP * Position / vec4( vec2(registers.OutputSize.xy / scaled_video_out), 1.0, 1.0 );
vTexCoord = TexCoord + half_pixel;
dot_size = registers.SourceSize.zw;
one_texel = 1.0 / (registers.SourceSize.xy * video_scale);
one_texel = 1.0 / (registers.SourceSize.xy * video_scale_factor);
}
////////////////////////////////////////////////////////////////////////////////