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Updating shaders

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Edward R. Gonzalez
2025-01-10 09:52:28 -05:00
parent 36cc557975
commit 77cf07ce16
2 changed files with 50 additions and 50 deletions
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51
backend/sokol/blit_atlas.shdc.glsl
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@@ -1,48 +1,51 @@
@module blit_atlas
@module ve_blit_atlas
@header package ve_sokol
@header package sectr
@header import sg "thirdparty:sokol/gfx"
@vs blit_atlas_vs
@include ./source_shared.shdc.glsl
@vs ve_blit_atlas_vs
@include ./ve_source_shared.shdc.glsl
@end
@fs blit_atlas_fs
@fs ve_blit_atlas_fs
in vec2 uv;
out vec4 frag_color;
layout(binding = 0) uniform texture2D blit_atlas_src_texture;
layout(binding = 0) uniform sampler blit_atlas_src_sampler;
layout(binding = 0) uniform texture2D ve_blit_atlas_src_texture;
layout(binding = 0) uniform sampler ve_blit_atlas_src_sampler;
layout(binding = 0) uniform blit_atlas_fs_params {
int region;
layout(binding = 0) uniform ve_blit_atlas_fs_params {
vec2 glyph_buffer_size;
float over_sample;
int region;
};
float down_sample( vec2 uv, vec2 texture_size )
float down_sample_to_texture( vec2 uv, vec2 texture_size )
{
float down_sample_scale = 1.0f / 4.0f;
float down_sample = 1.0f / over_sample;
float value =
texture(sampler2D( blit_atlas_src_texture, blit_atlas_src_sampler ), uv + vec2( 0.0f, 0.0f ) * texture_size ).x * down_sample_scale
+ texture(sampler2D( blit_atlas_src_texture, blit_atlas_src_sampler ), uv + vec2( 0.0f, 1.0f ) * texture_size ).x * down_sample_scale
+ texture(sampler2D( blit_atlas_src_texture, blit_atlas_src_sampler ), uv + vec2( 1.0f, 0.0f ) * texture_size ).x * down_sample_scale
+ texture(sampler2D( blit_atlas_src_texture, blit_atlas_src_sampler ), uv + vec2( 1.0f, 1.0f ) * texture_size ).x * down_sample_scale;
texture(sampler2D( ve_blit_atlas_src_texture, ve_blit_atlas_src_sampler ), uv + vec2( 0.0f, 0.0f ) * texture_size ).x * down_sample
+ texture(sampler2D( ve_blit_atlas_src_texture, ve_blit_atlas_src_sampler ), uv + vec2( 0.0f, 1.0f ) * texture_size ).x * down_sample
+ texture(sampler2D( ve_blit_atlas_src_texture, ve_blit_atlas_src_sampler ), uv + vec2( 1.0f, 0.0f ) * texture_size ).x * down_sample
+ texture(sampler2D( ve_blit_atlas_src_texture, ve_blit_atlas_src_sampler ), uv + vec2( 1.0f, 1.0f ) * texture_size ).x * down_sample;
return value;
}
void main()
{
// TODO(Ed): The original author made these consts, I want to instead expose as uniforms...
const vec2 texture_size = 1.0f / vec2( 2048.0f, 512.0f ); // VEFontCache.Context.buffer_width/buffer_height
if ( region == 0 || region == 1 || region == 2 )
// const vec2 texture_size = 1.0f / vec2( 2048.0f, 512.0f );
const vec2 texture_size = 1.0f / glyph_buffer_size;
if ( region == 0 || region == 1 || region == 2 || region == 4 )
{
float down_sample_scale = 1.0f / 4.0f;
float down_sample = 1.0f / over_sample;
float alpha =
down_sample( uv + vec2( -1.0f, -1.5f ) * texture_size, texture_size ) * down_sample_scale
+ down_sample( uv + vec2( 0.5f, -1.5f ) * texture_size, texture_size ) * down_sample_scale
+ down_sample( uv + vec2( -1.5f, 0.5f ) * texture_size, texture_size ) * down_sample_scale
+ down_sample( uv + vec2( 0.5f, 0.5f ) * texture_size, texture_size ) * down_sample_scale;
down_sample_to_texture( uv + vec2( -1.0f, -1.5f ) * texture_size, texture_size ) * down_sample
+ down_sample_to_texture( uv + vec2( 0.5f, -1.5f ) * texture_size, texture_size ) * down_sample
+ down_sample_to_texture( uv + vec2( -1.5f, 0.5f ) * texture_size, texture_size ) * down_sample
+ down_sample_to_texture( uv + vec2( 0.5f, 0.5f ) * texture_size, texture_size ) * down_sample;
frag_color = vec4( 1.0f, 1.0f, 1.0f, alpha );
}
else
@@ -52,4 +55,4 @@ void main()
}
@end
@program blit_atlas blit_atlas_vs blit_atlas_fs
@program ve_blit_atlas ve_blit_atlas_vs ve_blit_atlas_fs

49
backend/sokol/draw_text.shdc.glsl
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@@ -1,51 +1,48 @@
@module draw_text
@module ve_draw_text
@header package ve_sokol
@header package sectr
@header import sg "thirdparty:sokol/gfx"
@vs draw_text_vs
@vs ve_draw_text_vs
in vec2 v_position;
in vec2 v_texture;
out vec2 uv;
void main()
{
#if SOKOL_GLSL
uv = vec2( v_texture.x, v_texture.y );
#else
uv = vec2( v_texture.x, 1.0 - v_texture.y );
#endif
uv = vec2( v_texture.x, 1 - v_texture.y );
gl_Position = vec4( v_position * 2.0f - 1.0f, 0.0f, 1.0f );
}
@end
@fs draw_text_fs
@fs ve_draw_text_fs
in vec2 uv;
out vec4 frag_color;
layout(binding = 0) uniform texture2D draw_text_src_texture;
layout(binding = 0) uniform sampler draw_text_src_sampler;
layout(binding = 0) uniform texture2D ve_draw_text_src_texture;
layout(binding = 0) uniform sampler ve_draw_text_src_sampler;
layout(binding = 0) uniform draw_text_fs_params {
int down_sample;
vec4 colour;
layout(binding = 0) uniform ve_draw_text_fs_params {
vec2 glyph_buffer_size;
float over_sample;
vec4 colour;
};
void main()
{
float alpha = texture(sampler2D( draw_text_src_texture, draw_text_src_sampler ), uv ).x;
if ( down_sample == 1 )
{
// TODO(Ed): The original author made these consts, I want to instead expose as uniforms...
const vec2 texture_size = 1.0f / vec2( 2048.0f, 512.0f ); // VEFontCache.Context.buffer_width/buffer_height
alpha =
(texture(sampler2D( draw_text_src_texture, draw_text_src_sampler), uv + vec2( -0.5f, -0.5f) * texture_size ).x * 0.25f)
+ (texture(sampler2D( draw_text_src_texture, draw_text_src_sampler), uv + vec2( -0.5f, 0.5f) * texture_size ).x * 0.25f)
+ (texture(sampler2D( draw_text_src_texture, draw_text_src_sampler), uv + vec2( 0.5f, -0.5f) * texture_size ).x * 0.25f)
+ (texture(sampler2D( draw_text_src_texture, draw_text_src_sampler), uv + vec2( 0.5f, 0.5f) * texture_size ).x * 0.25f);
}
float alpha = texture(sampler2D( ve_draw_text_src_texture, ve_draw_text_src_sampler ), uv ).x;
// const vec2 texture_size = 1.0f / vec2( 2048.0f, 512.0f );
const vec2 texture_size = glyph_buffer_size;
const float down_sample = 1.0f / over_sample;
alpha =
(texture(sampler2D( ve_draw_text_src_texture, ve_draw_text_src_sampler), uv + vec2( -0.5f, -0.5f) * texture_size ).x * down_sample)
+ (texture(sampler2D( ve_draw_text_src_texture, ve_draw_text_src_sampler), uv + vec2( -0.5f, 0.5f) * texture_size ).x * down_sample)
+ (texture(sampler2D( ve_draw_text_src_texture, ve_draw_text_src_sampler), uv + vec2( 0.5f, -0.5f) * texture_size ).x * down_sample)
+ (texture(sampler2D( ve_draw_text_src_texture, ve_draw_text_src_sampler), uv + vec2( 0.5f, 0.5f) * texture_size ).x * down_sample);
frag_color = vec4( colour.xyz, colour.a * alpha );
}
@end
@program draw_text draw_text_vs draw_text_fs
@program ve_draw_text ve_draw_text_vs ve_draw_text_fs