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[418/906] effects: disable gst-indent in the sources
Fix some crazy formatting caused by gst-indent previous runs and disable the script for this file. The best would be to move shaders into separate files and load them at runtime or hardcode them at compile time.
This commit is contained in:
Filippo Argiolas
Matthew Waters
parent
e42b3eddbf
commit
4ff22b2c67
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@ -1,4 +1,4 @@
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/*
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/*
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* GStreamer
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* Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
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*
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@ -24,417 +24,464 @@
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/* A common file for sources is needed since shader sources can be
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* generic and reused by several effects */
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/* FIXME */
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/* Move sooner or later into single .frag .vert files and either bake
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* them into a c file at compile time or load them at run time */
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/* *INDENT-OFF* */
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/* Vertex shader */
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const gchar *vertex_shader_source =
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"attribute vec4 a_position;"
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"attribute vec2 a_texCoord;"
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"varying vec2 v_texCoord;"
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"void main()"
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"{"
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" gl_Position = a_position;"
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" v_texCoord = a_texCoord;"
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"}";
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"attribute vec4 a_position;"
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"attribute vec2 a_texCoord;"
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"varying vec2 v_texCoord;"
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"void main()"
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"{"
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" gl_Position = a_position;"
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" v_texCoord = a_texCoord;"
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"}";
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/* Identity effect */
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const gchar *identity_fragment_source =
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"precision mediump float;"
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"varying vec2 v_texCoord;"
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"uniform sampler2D tex;"
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"void main()"
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"{"
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" gl_FragColor = texture2D(tex, v_texCoord);"
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"}";
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"precision mediump float;"
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"varying vec2 v_texCoord;"
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"uniform sampler2D tex;"
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"void main()"
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"{"
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" gl_FragColor = texture2D(tex, v_texCoord);"
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"}";
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/* Mirror effect */
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const gchar *mirror_fragment_source =
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#ifndef OPENGL_ES2
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width, height;"
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width, height;"
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#else
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"precision mediump float;"
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"varying vec2 v_texCoord;"
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"uniform sampler2D tex;"
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"precision mediump float;"
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"varying vec2 v_texCoord;"
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"uniform sampler2D tex;"
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#endif
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"void main () {"
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"void main () {"
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#ifndef OPENGL_ES2
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;"
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" vec2 normcoord;"
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" normcoord = texturecoord / tex_size - 1.0;"
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" normcoord.x *= sign (normcoord.x);"
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" texturecoord = (normcoord + 1.0) * tex_size;"
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" vec4 color = texture2DRect (tex, texturecoord);"
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" gl_FragColor = color * gl_Color;"
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;"
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" vec2 normcoord;"
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" normcoord = texturecoord / tex_size - 1.0;"
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" normcoord.x *= sign (normcoord.x);"
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" texturecoord = (normcoord + 1.0) * tex_size;"
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" vec4 color = texture2DRect (tex, texturecoord);"
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" gl_FragColor = color * gl_Color;"
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#else
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" vec2 texturecoord = v_texCoord.xy;"
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" float normcoord = texturecoord.x - 0.5;"
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" normcoord *= sign (normcoord);"
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" texturecoord.x = (normcoord + 0.5);"
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" gl_FragColor = texture2D (tex, texturecoord);"
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" vec2 texturecoord = v_texCoord.xy;"
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" float normcoord = texturecoord.x - 0.5;"
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" normcoord *= sign (normcoord);"
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" texturecoord.x = (normcoord + 0.5);"
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" gl_FragColor = texture2D (tex, texturecoord);"
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#endif
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"}";
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"}";
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/* Squeeze effect */
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const gchar *squeeze_fragment_source =
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#ifndef OPENGL_ES2
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width, height;"
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width, height;"
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#else
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"precision mediump float;"
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"varying vec2 v_texCoord;"
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"uniform sampler2D tex;"
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"precision mediump float;"
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"varying vec2 v_texCoord;"
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"uniform sampler2D tex;"
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#endif
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"void main () {"
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"void main () {"
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#ifndef OPENGL_ES2
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;"
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" vec2 normcoord;"
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" normcoord = texturecoord / tex_size - 1.0; "
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" float r = length (normcoord);"
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" r = pow(r, 0.40)*1.3;"
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" normcoord = normcoord / r;"
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" texturecoord = (normcoord + 1.0) * tex_size;"
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" vec4 color = texture2DRect (tex, texturecoord); "
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" gl_FragColor = color * gl_Color;"
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;"
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" vec2 normcoord;"
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" normcoord = texturecoord / tex_size - 1.0; "
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" float r = length (normcoord);"
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" r = pow(r, 0.40)*1.3;"
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" normcoord = normcoord / r;"
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" texturecoord = (normcoord + 1.0) * tex_size;"
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" vec4 color = texture2DRect (tex, texturecoord); "
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" gl_FragColor = color * gl_Color;"
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#else
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" vec2 texturecoord = v_texCoord.xy;"
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" vec2 normcoord = texturecoord - 0.5;"
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" float r = length (normcoord);"
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" r = pow(r, 0.40)*1.3;"
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" normcoord = normcoord / r;"
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" texturecoord = (normcoord + 0.5);"
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" gl_FragColor = texture2D (tex, texturecoord);"
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" vec2 texturecoord = v_texCoord.xy;"
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" vec2 normcoord = texturecoord - 0.5;"
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" float r = length (normcoord);"
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" r = pow(r, 0.40)*1.3;"
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" normcoord = normcoord / r;"
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" texturecoord = (normcoord + 0.5);"
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" gl_FragColor = texture2D (tex, texturecoord);"
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#endif
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"}";
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"}";
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/* Stretch Effect */
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const gchar *stretch_fragment_source =
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width, height;"
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"void main () {"
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;"
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" vec2 normcoord;"
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" normcoord = texturecoord / tex_size - 1.0;"
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" float r = length (normcoord);"
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" normcoord *= 2.0 - smoothstep(0.0, 0.7, r);"
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" texturecoord = (normcoord + 1.0) * tex_size;"
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" vec4 color = texture2DRect (tex, texturecoord);"
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" gl_FragColor = color * gl_Color;" "}";
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width, height;"
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"void main () {"
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;"
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" vec2 normcoord;"
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" normcoord = texturecoord / tex_size - 1.0;"
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" float r = length (normcoord);"
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" normcoord *= 2.0 - smoothstep(0.0, 0.7, r);"
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" texturecoord = (normcoord + 1.0) * tex_size;"
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" vec4 color = texture2DRect (tex, texturecoord);"
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" gl_FragColor = color * gl_Color;"
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"}";
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/* Light Tunnel effect */
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const gchar *tunnel_fragment_source =
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width, height;"
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"void main () {"
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;" " vec2 normcoord;"
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/* little trick with normalized coords to obtain a circle */
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" normcoord = texturecoord / tex_size.x - tex_size / tex_size.x;" " float r = length(normcoord);" " float phi = atan(normcoord.y, normcoord.x);" " r = clamp (r, 0.0, 0.5);" /* is there a way to do this without polars? */
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" normcoord.x = r * cos(phi);"
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" normcoord.y = r * sin(phi); "
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" texturecoord = (normcoord + tex_size/tex_size.x) * tex_size.x;"
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" vec4 color = texture2DRect (tex, texturecoord); "
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" gl_FragColor = color;" "}";
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width, height;"
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"void main () {"
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;"
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" vec2 normcoord;"
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/* little trick with normalized coords to obtain a circle */
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" normcoord = texturecoord / tex_size.x - tex_size / tex_size.x;"
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" float r = length(normcoord);"
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" float phi = atan(normcoord.y, normcoord.x);"
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" r = clamp (r, 0.0, 0.5);" /* is there a way to do this without polars? */
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" normcoord.x = r * cos(phi);"
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" normcoord.y = r * sin(phi); "
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" texturecoord = (normcoord + tex_size/tex_size.x) * tex_size.x;"
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" vec4 color = texture2DRect (tex, texturecoord); "
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" gl_FragColor = color;"
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"}";
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/* FishEye effect */
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const gchar *fisheye_fragment_source =
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width, height;"
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"void main () {"
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;"
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" vec2 normcoord;"
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" normcoord = texturecoord / tex_size - 1.0;"
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" float r = length (normcoord);"
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" normcoord *= r/sqrt(2.0);"
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" texturecoord = (normcoord + 1.0) * tex_size;"
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" vec4 color = texture2DRect (tex, texturecoord);"
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" gl_FragColor = color;" "}";
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width, height;"
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"void main () {"
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;"
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" vec2 normcoord;"
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" normcoord = texturecoord / tex_size - 1.0;"
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" float r = length (normcoord);"
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" normcoord *= r/sqrt(2.0);"
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" texturecoord = (normcoord + 1.0) * tex_size;"
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" vec4 color = texture2DRect (tex, texturecoord);"
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" gl_FragColor = color;"
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"}";
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/* Twirl effect */
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const gchar *twirl_fragment_source =
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width, height;"
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"void main () {"
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;"
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" vec2 normcoord;"
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" normcoord = texturecoord / tex_size - 1.0;"
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" float r = length (normcoord);"
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" float phi = atan (normcoord.y, normcoord.x);"
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" phi += (1.0 - smoothstep (-0.6, 0.6, r)) * 4.8;"
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" normcoord.x = r * cos(phi);"
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" normcoord.y = r * sin(phi);"
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" texturecoord = (normcoord + 1.0) * tex_size;"
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" vec4 color = texture2DRect (tex, texturecoord); "
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" gl_FragColor = color;" "}";
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width, height;"
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"void main () {"
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;"
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" vec2 normcoord;"
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" normcoord = texturecoord / tex_size - 1.0;"
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" float r = length (normcoord);"
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" float phi = atan (normcoord.y, normcoord.x);"
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" phi += (1.0 - smoothstep (-0.6, 0.6, r)) * 4.8;"
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" normcoord.x = r * cos(phi);"
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" normcoord.y = r * sin(phi);"
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" texturecoord = (normcoord + 1.0) * tex_size;"
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" vec4 color = texture2DRect (tex, texturecoord); "
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" gl_FragColor = color;"
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"}";
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/* Bulge effect */
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const gchar *bulge_fragment_source =
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width, height;"
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"void main () {"
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;"
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" vec2 normcoord;"
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" normcoord = texturecoord / tex_size - 1.0;"
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" float r = length (normcoord);"
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" normcoord *= smoothstep (-0.1, 0.5, r);"
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" texturecoord = (normcoord + 1.0) * tex_size;"
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" vec4 color = texture2DRect (tex, texturecoord);"
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" gl_FragColor = color;" "}";
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width, height;"
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"void main () {"
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;"
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" vec2 normcoord;"
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" normcoord = texturecoord / tex_size - 1.0;"
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" float r = length (normcoord);"
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" normcoord *= smoothstep (-0.1, 0.5, r);"
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" texturecoord = (normcoord + 1.0) * tex_size;"
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" vec4 color = texture2DRect (tex, texturecoord);"
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" gl_FragColor = color;"
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"}";
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/* Square Effect */
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const gchar *square_fragment_source =
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width;"
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"uniform float height;"
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"void main () {"
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;"
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" vec2 normcoord;"
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" normcoord = texturecoord / tex_size - 1.0;"
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" float r = length (normcoord);"
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" normcoord *= 1.0 + smoothstep(0.25, 0.5, abs(normcoord));"
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" normcoord /= 2.0; /* zoom amount */"
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" texturecoord = (normcoord + 1.0) * tex_size;"
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" vec4 color = texture2DRect (tex, texturecoord);"
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" gl_FragColor = color * gl_Color;" "}";
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float width;"
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"uniform float height;"
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"void main () {"
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" vec2 tex_size = vec2 (width, height);"
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" vec2 texturecoord = gl_TexCoord[0].xy;"
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" vec2 normcoord;"
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" normcoord = texturecoord / tex_size - 1.0;"
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" float r = length (normcoord);"
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" normcoord *= 1.0 + smoothstep(0.25, 0.5, abs(normcoord));"
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" normcoord /= 2.0; /* zoom amount */"
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" texturecoord = (normcoord + 1.0) * tex_size;"
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" vec4 color = texture2DRect (tex, texturecoord);"
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" gl_FragColor = color * gl_Color;"
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"}";
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const gchar *luma_threshold_fragment_source = "#extension GL_ARB_texture_rectangle : enable\n" "uniform sampler2DRect tex;" "void main () {" " vec2 texturecoord = gl_TexCoord[0].st;" " int i;" " vec4 color = texture2DRect(tex, texturecoord);" " float luma = dot(color.rgb, vec3(0.2125, 0.7154, 0.0721));" /* BT.709 (from orange book) */
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" gl_FragColor = vec4 (vec3 (smoothstep (0.30, 0.50, luma)), color.a);"
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"}";
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const gchar *luma_threshold_fragment_source =
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"void main () {"
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" vec2 texturecoord = gl_TexCoord[0].st;"
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" int i;"
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" vec4 color = texture2DRect(tex, texturecoord);"
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" float luma = dot(color.rgb, vec3(0.2125, 0.7154, 0.0721));" /* BT.709 (from orange book) */
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" gl_FragColor = vec4 (vec3 (smoothstep (0.30, 0.50, luma)), color.a);"
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"}";
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const gchar *sobel_fragment_source =
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"#extension GL_ARB_texture_rectangle : enable\n"
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"uniform sampler2DRect tex;"
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"uniform float hkern[9];"
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"uniform float vkern[9];"
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"uniform bool invert;"
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"void main () {"
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" vec2 offset[9] = vec2[9] ( vec2(-1.0,-1.0), vec2( 0.0,-1.0), vec2( 1.0,-1.0),"
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" vec2(-1.0, 0.0), vec2( 0.0, 0.0), vec2( 1.0, 0.0),"
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" vec2(-1.0, 1.0), vec2( 0.0, 1.0), vec2( 1.0, 1.0) );"
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" vec2 texturecoord = gl_TexCoord[0].st;"
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" int i;"
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" float luma;"
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" float gx = 0.0;"
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" float gy = 0.0 ;"
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" for (i = 0; i < 9; i++) { "
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" if(hkern[i] != 0.0 || vkern[i] != 0.0) {"
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" vec4 neighbor = texture2DRect(tex, texturecoord + vec2(offset[i])); "
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" luma = dot(neighbor, vec4(0.2125, 0.7154, 0.0721, neighbor.a));"
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||||
" gx += luma * hkern[i]; "
|
||||
" gy += luma * vkern[i]; "
|
||||
" }"
|
||||
" }"
|
||||
" float g = sqrt(gx*gx + gy*gy);"
|
||||
" if (invert) g = 1.0 - g;" " gl_FragColor = vec4(vec3(g), 1.0);" "}";
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect tex;"
|
||||
"uniform float hkern[9];"
|
||||
"uniform float vkern[9];"
|
||||
"uniform bool invert;"
|
||||
"void main () {"
|
||||
" vec2 offset[9] = vec2[9] ( vec2(-1.0,-1.0), vec2( 0.0,-1.0), vec2( 1.0,-1.0),"
|
||||
" vec2(-1.0, 0.0), vec2( 0.0, 0.0), vec2( 1.0, 0.0),"
|
||||
" vec2(-1.0, 1.0), vec2( 0.0, 1.0), vec2( 1.0, 1.0) );"
|
||||
" vec2 texturecoord = gl_TexCoord[0].st;"
|
||||
" int i;"
|
||||
" float luma;"
|
||||
" float gx = 0.0;"
|
||||
" float gy = 0.0 ;"
|
||||
" for (i = 0; i < 9; i++) { "
|
||||
" if(hkern[i] != 0.0 || vkern[i] != 0.0) {"
|
||||
" vec4 neighbor = texture2DRect(tex, texturecoord + vec2(offset[i])); "
|
||||
" luma = dot(neighbor, vec4(0.2125, 0.7154, 0.0721, neighbor.a));"
|
||||
" gx += luma * hkern[i]; "
|
||||
" gy += luma * vkern[i]; "
|
||||
" }"
|
||||
" }"
|
||||
" float g = sqrt(gx*gx + gy*gy);"
|
||||
" if (invert) g = 1.0 - g;"
|
||||
" gl_FragColor = vec4(vec3(g), 1.0);"
|
||||
"}";
|
||||
|
||||
|
||||
/* horizontal convolution */
|
||||
const gchar *hconv9_fragment_source =
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect tex;"
|
||||
"uniform float norm_const;"
|
||||
"uniform float norm_offset;" "uniform float kernel[9];" "void main () {"
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect tex;"
|
||||
"uniform float norm_const;"
|
||||
"uniform float norm_offset;"
|
||||
"uniform float kernel[9];"
|
||||
"void main () {"
|
||||
/* "float offset[9] = float[9] (-4.0, -3.0, -2.0, -1.0, 0.0, 1.0, 2.0, 3.0, 4.0);" */
|
||||
/* don't use array constructor so we don't have to depend on #version 120 */
|
||||
" float offset[9];"
|
||||
" offset[0] = -4.0;"
|
||||
" offset[1] = -3.0;"
|
||||
" offset[2] = -2.0;"
|
||||
" offset[3] = -1.0;"
|
||||
" offset[4] = 0.0;"
|
||||
" offset[5] = 1.0;"
|
||||
" offset[6] = 2.0;"
|
||||
" offset[7] = 3.0;"
|
||||
" offset[8] = 4.0;"
|
||||
" vec2 texturecoord = gl_TexCoord[0].st;"
|
||||
" int i;"
|
||||
" vec4 sum = vec4 (0.0);"
|
||||
" for (i = 0; i < 9; i++) { "
|
||||
" if (kernel[i] != 0.0) {"
|
||||
" vec4 neighbor = texture2DRect(tex, vec2(texturecoord.s+offset[i], texturecoord.t)); "
|
||||
" sum += neighbor * kernel[i]/norm_const; "
|
||||
" }" " }" " gl_FragColor = sum + norm_offset;" "}";
|
||||
" float offset[9];"
|
||||
" offset[0] = -4.0;"
|
||||
" offset[1] = -3.0;"
|
||||
" offset[2] = -2.0;"
|
||||
" offset[3] = -1.0;"
|
||||
" offset[4] = 0.0;"
|
||||
" offset[5] = 1.0;"
|
||||
" offset[6] = 2.0;"
|
||||
" offset[7] = 3.0;"
|
||||
" offset[8] = 4.0;"
|
||||
" vec2 texturecoord = gl_TexCoord[0].st;"
|
||||
" int i;"
|
||||
" vec4 sum = vec4 (0.0);"
|
||||
" for (i = 0; i < 9; i++) { "
|
||||
" if (kernel[i] != 0.0) {"
|
||||
" vec4 neighbor = texture2DRect(tex, vec2(texturecoord.s+offset[i], texturecoord.t)); "
|
||||
" sum += neighbor * kernel[i]/norm_const; "
|
||||
" }"
|
||||
" }"
|
||||
" gl_FragColor = sum + norm_offset;"
|
||||
"}";
|
||||
|
||||
/* vertical convolution */
|
||||
const gchar *vconv9_fragment_source =
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect tex;"
|
||||
"uniform float norm_const;"
|
||||
"uniform float norm_offset;" "uniform float kernel[9];" "void main () {"
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect tex;"
|
||||
"uniform float norm_const;"
|
||||
"uniform float norm_offset;"
|
||||
"uniform float kernel[9];"
|
||||
"void main () {"
|
||||
/* "float offset[9] = float[9] (-4.0, -3.0, -2.0, -1.0, 0.0, 1.0, 2.0, 3.0, 4.0);" */
|
||||
/* don't use array constructor so we don't have to depend on #version 120 */
|
||||
" float offset[9];"
|
||||
" offset[0] = -4.0;"
|
||||
" offset[1] = -3.0;"
|
||||
" offset[2] = -2.0;"
|
||||
" offset[3] = -1.0;"
|
||||
" offset[4] = 0.0;"
|
||||
" offset[5] = 1.0;"
|
||||
" offset[6] = 2.0;"
|
||||
" offset[7] = 3.0;"
|
||||
" offset[8] = 4.0;"
|
||||
" vec2 texturecoord = gl_TexCoord[0].st;"
|
||||
" int i;"
|
||||
" vec4 sum = vec4 (0.0);"
|
||||
" for (i = 0; i < 9; i++) { "
|
||||
" if (kernel[i] != 0.0) {"
|
||||
" vec4 neighbor = texture2DRect(tex, vec2(texturecoord.s, texturecoord.t+offset[i])); "
|
||||
" sum += neighbor * kernel[i]/norm_const; "
|
||||
" }" " }" " gl_FragColor = sum + norm_offset;" "}";
|
||||
" float offset[9];"
|
||||
" offset[0] = -4.0;"
|
||||
" offset[1] = -3.0;"
|
||||
" offset[2] = -2.0;"
|
||||
" offset[3] = -1.0;"
|
||||
" offset[4] = 0.0;"
|
||||
" offset[5] = 1.0;"
|
||||
" offset[6] = 2.0;"
|
||||
" offset[7] = 3.0;"
|
||||
" offset[8] = 4.0;"
|
||||
" vec2 texturecoord = gl_TexCoord[0].st;"
|
||||
" int i;"
|
||||
" vec4 sum = vec4 (0.0);"
|
||||
" for (i = 0; i < 9; i++) { "
|
||||
" if (kernel[i] != 0.0) {"
|
||||
" vec4 neighbor = texture2DRect(tex, vec2(texturecoord.s, texturecoord.t+offset[i])); "
|
||||
" sum += neighbor * kernel[i]/norm_const; "
|
||||
" }"
|
||||
" }"
|
||||
" gl_FragColor = sum + norm_offset;"
|
||||
"}";
|
||||
|
||||
|
||||
/* TODO: support several blend modes */
|
||||
const gchar *sum_fragment_source =
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect base;"
|
||||
"uniform sampler2DRect blend;"
|
||||
"uniform float alpha;"
|
||||
"uniform float beta;"
|
||||
"void main () {"
|
||||
" vec4 basecolor = texture2DRect (base, gl_TexCoord[0].st);"
|
||||
" vec4 blendcolor = texture2DRect (blend, gl_TexCoord[0].st);"
|
||||
" gl_FragColor = alpha * basecolor + beta * blendcolor;" "}";
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect base;"
|
||||
"uniform sampler2DRect blend;"
|
||||
"uniform float alpha;"
|
||||
"uniform float beta;"
|
||||
"void main () {"
|
||||
" vec4 basecolor = texture2DRect (base, gl_TexCoord[0].st);"
|
||||
" vec4 blendcolor = texture2DRect (blend, gl_TexCoord[0].st);"
|
||||
" gl_FragColor = alpha * basecolor + beta * blendcolor;"
|
||||
"}";
|
||||
|
||||
const gchar *multiply_fragment_source =
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect base;"
|
||||
"uniform sampler2DRect blend;"
|
||||
"uniform float alpha;"
|
||||
"void main () {"
|
||||
" vec4 basecolor = texture2DRect (base, gl_TexCoord[0].st);"
|
||||
" vec4 blendcolor = texture2DRect (blend, gl_TexCoord[0].st);"
|
||||
" gl_FragColor = (1 - alpha) * basecolor + alpha * basecolor * blendcolor;"
|
||||
"}";
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect base;"
|
||||
"uniform sampler2DRect blend;"
|
||||
"uniform float alpha;"
|
||||
"void main () {"
|
||||
" vec4 basecolor = texture2DRect (base, gl_TexCoord[0].st);"
|
||||
" vec4 blendcolor = texture2DRect (blend, gl_TexCoord[0].st);"
|
||||
" gl_FragColor = (1 - alpha) * basecolor + alpha * basecolor * blendcolor;"
|
||||
"}";
|
||||
|
||||
/* lut operations, map luma to tex1d, see orange book (chapter 19) */
|
||||
const gchar *luma_to_curve_fragment_source =
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect tex;"
|
||||
"uniform sampler1D curve;"
|
||||
"void main () {"
|
||||
" vec2 texturecoord = gl_TexCoord[0].st;"
|
||||
" vec4 color = texture2DRect (tex, texturecoord);"
|
||||
" float luma = dot(color.rgb, vec3(0.2125, 0.7154, 0.0721));"
|
||||
" color = texture1D(curve, luma);" " gl_FragColor = color;" "}";
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect tex;"
|
||||
"uniform sampler1D curve;"
|
||||
"void main () {"
|
||||
" vec2 texturecoord = gl_TexCoord[0].st;"
|
||||
" vec4 color = texture2DRect (tex, texturecoord);"
|
||||
" float luma = dot(color.rgb, vec3(0.2125, 0.7154, 0.0721));"
|
||||
" color = texture1D(curve, luma);"
|
||||
" gl_FragColor = color;"
|
||||
"}";
|
||||
|
||||
|
||||
/* lut operations, map rgb to tex1d, see orange book (chapter 19) */
|
||||
const gchar *rgb_to_curve_fragment_source =
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect tex;"
|
||||
"uniform sampler1D curve;"
|
||||
"void main () {"
|
||||
" vec2 texturecoord = gl_TexCoord[0].st;"
|
||||
" vec4 color = texture2DRect (tex, texturecoord);"
|
||||
" vec4 outcolor;"
|
||||
" outcolor.r = texture1D(curve, color.r).r;"
|
||||
" outcolor.g = texture1D(curve, color.g).g;"
|
||||
" outcolor.b = texture1D(curve, color.b).b;"
|
||||
" outcolor.a = color.a;" " gl_FragColor = outcolor;" "}";
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect tex;"
|
||||
"uniform sampler1D curve;"
|
||||
"void main () {"
|
||||
" vec2 texturecoord = gl_TexCoord[0].st;"
|
||||
" vec4 color = texture2DRect (tex, texturecoord);"
|
||||
" vec4 outcolor;"
|
||||
" outcolor.r = texture1D(curve, color.r).r;"
|
||||
" outcolor.g = texture1D(curve, color.g).g;"
|
||||
" outcolor.b = texture1D(curve, color.b).b;"
|
||||
" outcolor.a = color.a;"
|
||||
" gl_FragColor = outcolor;"
|
||||
"}";
|
||||
|
||||
const gchar *sin_fragment_source =
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect tex;" "vec3 rgb2hsl (vec3 v) " "{"
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect tex;"
|
||||
"vec3 rgb2hsl (vec3 v)"
|
||||
"{"
|
||||
/* TODO: check this algorythm */
|
||||
" float MIN, MAX;"
|
||||
" float r, g, b;"
|
||||
" float h, l, s;"
|
||||
" float delta;"
|
||||
" h = 0.0; l = 0.0; s = 0.0;"
|
||||
" r = v.r; g = v.g; b = v.b;"
|
||||
" MIN = min (r, min (g, b));"
|
||||
" MAX = max (r, max (g, b));"
|
||||
" delta = MAX - MIN;"
|
||||
" l = (MAX + MIN) / 2.0;"
|
||||
" if ((MAX - MIN) < 0.0001) { h = 0.0; s = 0.0; }"
|
||||
" else {"
|
||||
" if (l <= 0.5) s = (MAX - MIN) / (MAX + MIN);"
|
||||
" else s = (MAX - MIN) / (2.0 - MAX - MIN);"
|
||||
" if (r == MAX) h = (g - b) / delta;"
|
||||
" else if (g == MAX) h = 2.0 + (b - r) / delta;"
|
||||
" else h = 4.0 + (r - g) / delta;"
|
||||
" h *= 60.0;"
|
||||
" if (h < 0.0) h += 360.0;"
|
||||
" }"
|
||||
" return vec3 (h, l, s);"
|
||||
"}"
|
||||
"void main () {"
|
||||
" vec3 HSL, RGB;"
|
||||
" vec4 color = texture2DRect (tex, vec2(gl_TexCoord[0].st));"
|
||||
" float luma = dot(color.rgb, vec3(0.2125, 0.7154, 0.0721));"
|
||||
" HSL = rgb2hsl (color.rgb);"
|
||||
" float MIN, MAX;"
|
||||
" float r, g, b;"
|
||||
" float h, l, s;"
|
||||
" float delta;"
|
||||
" h = 0.0; l = 0.0; s = 0.0;"
|
||||
" r = v.r; g = v.g; b = v.b;"
|
||||
" MIN = min (r, min (g, b));"
|
||||
" MAX = max (r, max (g, b));"
|
||||
" delta = MAX - MIN;"
|
||||
" l = (MAX + MIN) / 2.0;"
|
||||
" if ((MAX - MIN) < 0.0001) { h = 0.0; s = 0.0; }"
|
||||
" else {"
|
||||
" if (l <= 0.5) s = (MAX - MIN) / (MAX + MIN);"
|
||||
" else s = (MAX - MIN) / (2.0 - MAX - MIN);"
|
||||
" if (r == MAX) h = (g - b) / delta;"
|
||||
" else if (g == MAX) h = 2.0 + (b - r) / delta;"
|
||||
" else h = 4.0 + (r - g) / delta;"
|
||||
" h *= 60.0;"
|
||||
" if (h < 0.0) h += 360.0;"
|
||||
" }"
|
||||
" return vec3 (h, l, s);"
|
||||
"}"
|
||||
"void main () {"
|
||||
" vec3 HSL, RGB;"
|
||||
" vec4 color = texture2DRect (tex, vec2(gl_TexCoord[0].st));"
|
||||
" float luma = dot(color.rgb, vec3(0.2125, 0.7154, 0.0721));"
|
||||
" HSL = rgb2hsl (color.rgb);"
|
||||
/* move hls discontinuity away from the desired red zone so we can use
|
||||
* smoothstep.. to try: convert degrees in radiants, divide by 2 and
|
||||
* smoothstep cosine */
|
||||
" HSL.x += 180.0;" " if ((HSL.x) > 360.0) HSL.x -= 360.0;"
|
||||
" HSL.x += 180.0;"
|
||||
" if ((HSL.x) > 360.0) HSL.x -= 360.0;"
|
||||
/* damn, it is extremely hard to get rid of human face reds! */
|
||||
/* picked hue is slightly shifted towards violet to prevent this but
|
||||
* still fails.. maybe hsl is not well suited for this */
|
||||
" float a = smoothstep (110.0, 150.0, HSL.x);"
|
||||
" float b = smoothstep (170.0, 210.0, HSL.x);"
|
||||
" float alpha = a - b;"
|
||||
" gl_FragColor = color * alpha + luma * (1.0 - alpha);" "}";
|
||||
" float a = smoothstep (110.0, 150.0, HSL.x);"
|
||||
" float b = smoothstep (170.0, 210.0, HSL.x);"
|
||||
" float alpha = a - b;"
|
||||
" gl_FragColor = color * alpha + luma * (1.0 - alpha);"
|
||||
"}";
|
||||
|
||||
const gchar *interpolate_fragment_source =
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect base;"
|
||||
"uniform sampler2DRect blend;"
|
||||
"void main () {"
|
||||
"vec4 basecolor = texture2DRect (base, gl_TexCoord[0].st);"
|
||||
"vec4 blendcolor = texture2DRect (blend, gl_TexCoord[0].st);"
|
||||
"vec4 white = vec4(1.0);"
|
||||
"gl_FragColor = blendcolor + (1.0 - blendcolor.a) * basecolor;" "}";
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect base;"
|
||||
"uniform sampler2DRect blend;"
|
||||
"void main () {"
|
||||
"vec4 basecolor = texture2DRect (base, gl_TexCoord[0].st);"
|
||||
"vec4 blendcolor = texture2DRect (blend, gl_TexCoord[0].st);"
|
||||
"vec4 white = vec4(1.0);"
|
||||
"gl_FragColor = blendcolor + (1.0 - blendcolor.a) * basecolor;"
|
||||
"}";
|
||||
|
||||
const gchar *texture_interp_fragment_source =
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect base;"
|
||||
"uniform sampler2DRect blend;"
|
||||
"uniform sampler2DRect alpha;"
|
||||
"uniform float final_width, final_height;"
|
||||
"uniform float base_width, base_height;"
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect base;"
|
||||
"uniform sampler2DRect blend;"
|
||||
"uniform sampler2DRect alpha;"
|
||||
"uniform float final_width, final_height;"
|
||||
"uniform float base_width, base_height;"
|
||||
/*
|
||||
"uniform float blend_width, blend_height;"
|
||||
"uniform float alpha_width, alpha_height;"
|
||||
"uniform float blend_width, blend_height;"
|
||||
"uniform float alpha_width, alpha_height;"
|
||||
*/
|
||||
"void main () {"
|
||||
"vec2 base_scale = vec2 (base_width, base_height) / vec2 (final_width, final_height);"
|
||||
"void main () {"
|
||||
"vec2 base_scale = vec2 (base_width, base_height) / vec2 (final_width, final_height);"
|
||||
/*
|
||||
"vec2 blend_scale = vec2 (blend_width, blend_height) / vec2 (final_width, final_height);"
|
||||
"vec2 alpha_scale = vec2 (alpha_width, alpha_height) / vec2 (final_width, final_height);"
|
||||
"vec2 blend_scale = vec2 (blend_width, blend_height) / vec2 (final_width, final_height);"
|
||||
"vec2 alpha_scale = vec2 (alpha_width, alpha_height) / vec2 (final_width, final_height);"
|
||||
*/
|
||||
|
||||
"vec4 basecolor = texture2DRect (base, gl_TexCoord[0].st * base_scale);"
|
||||
"vec4 blendcolor = texture2DRect (blend, gl_TexCoord[0].st);"
|
||||
"vec4 alphacolor = texture2DRect (alpha, gl_TexCoord[0].st);"
|
||||
"vec4 basecolor = texture2DRect (base, gl_TexCoord[0].st * base_scale);"
|
||||
"vec4 blendcolor = texture2DRect (blend, gl_TexCoord[0].st);"
|
||||
"vec4 alphacolor = texture2DRect (alpha, gl_TexCoord[0].st);"
|
||||
// "gl_FragColor = alphacolor;"
|
||||
"gl_FragColor = (alphacolor * blendcolor) + (1.0 - alphacolor) * basecolor;"
|
||||
"}";
|
||||
"gl_FragColor = (alphacolor * blendcolor) + (1.0 - alphacolor) * basecolor;"
|
||||
"}";
|
||||
|
||||
const gchar *difference_fragment_source =
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect saved;"
|
||||
"uniform sampler2DRect current;"
|
||||
"void main () {"
|
||||
"vec4 savedcolor = texture2DRect (saved, gl_TexCoord[0].st);"
|
||||
"vec4 currentcolor = texture2DRect (current, gl_TexCoord[0].st);"
|
||||
"gl_FragColor = vec4 (step (0.12, length (savedcolor - currentcolor)));"
|
||||
"}";
|
||||
"#extension GL_ARB_texture_rectangle : enable\n"
|
||||
"uniform sampler2DRect saved;"
|
||||
"uniform sampler2DRect current;"
|
||||
"void main () {"
|
||||
"vec4 savedcolor = texture2DRect (saved, gl_TexCoord[0].st);"
|
||||
"vec4 currentcolor = texture2DRect (current, gl_TexCoord[0].st);"
|
||||
"gl_FragColor = vec4 (step (0.12, length (savedcolor - currentcolor)));"
|
||||
"}";
|
||||
|
||||
/* *INDENT-ON* */
|
||||
|
|
|
|||
Loading…
Reference in a new issue