https://bugs.kde.org/show_bug.cgi?id=369474
--- Comment #2 from Boudewijn Rempt <b...@valdyas.org> ---
I've got something similar, on closing Krita after changing the canvas to
opengl:
QOpenGLShader::compile(Fragment): ERROR: 0:14: Invalid call of undeclared
identifier 'texture3D'
*** Problematic Fragment shader source code ***
#version 150 core
#define lowp
#define mediump
#define highp
#line 2
#define DIRECT_LOD_FETCH
#define HIGHQ_SCALING
#define USE_OCIO
// Generated by OpenColorIO
vec4 OCIODisplay(in vec4 inPixel,
const sampler3D lut3d)
{
vec4 out_pixel = inPixel;
// OSX segfault work-around: Force a no-op sampling of the 3d lut.
texture3D(lut3d, 0.984375 * out_pixel.rgb + 0.0078125).rgb;
return out_pixel;
}
/*
* shader for handling scaling
*/
uniform sampler2D texture0;
#ifdef USE_OCIO
uniform sampler3D texture1;
#endif
in vec4 v_textureCoordinate;
out vec4 fragColor;
const float eps = 1e-6;
#if defined HIGHQ_SCALING || defined DIRECT_LOD_FETCH
uniform float viewportScale;
#endif /* defined HIGHQ_SCALING || defined DIRECT_LOD_FETCH */
#ifdef DIRECT_LOD_FETCH
uniform float fixedLodLevel;
#endif
#ifdef HIGHQ_SCALING
uniform float texelSize;
vec4 filterPureLinear8(sampler2D texture, vec2 texcoord)
{
float newTexelSize = texelSize / viewportScale;
float support = 0.5 * newTexelSize;
float step = texelSize * 1.0;
float offset = support - 0.5*texelSize;
float level = 0.0;
if (viewportScale < 0.03125) {
level = 4.0;
} else if (viewportScale < 0.0625) {
level = 3.0;
} else if (viewportScale < 0.125) {
level = 2.0;
} else if (viewportScale < 0.25) {
level = 1.0;
}
/*
vec4 p1 = textureLod(texture, vec2(texcoord.x - offset, texcoord.y -
offset), level);
vec4 p2 = 2.0*textureLod(texture, vec2(texcoord.x , texcoord.y -
offset), level);
vec4 p3 = textureLod(texture, vec2(texcoord.x + offset, texcoord.y -
offset), level);
vec4 p4 = 2.0*textureLod(texture, vec2(texcoord.x - offset, texcoord.y),
level);
vec4 p5 = 5.0*textureLod(texture, vec2(texcoord.x , texcoord.y),
level);
vec4 p6 = 2.0*textureLod(texture, vec2(texcoord.x + offset, texcoord.y),
level);
vec4 p7 = textureLod(texture, vec2(texcoord.x - offset, texcoord.y +
offset), level);
vec4 p8 = 2.0*textureLod(texture, vec2(texcoord.x , texcoord.y +
offset), level);
vec4 p9 = textureLod(texture, vec2(texcoord.x + offset, texcoord.y +
offset), level);
return (p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + p9) / 17.0;
*/
vec4 p1 = textureLod(texture, vec2(texcoord.x - offset, texcoord.y -
offset), level);
vec4 p2 = textureLod(texture, vec2(texcoord.x + offset, texcoord.y -
offset), level);
vec4 p3 = vec4(4.0) * textureLod(texture, vec2(texcoord.x, texcoord.y),
level);
vec4 p4 = textureLod(texture, vec2(texcoord.x - offset, texcoord.y +
offset), level);
vec4 p5 = textureLod(texture, vec2(texcoord.x + offset, texcoord.y +
offset), level);
vec4 p6 = vec4(3.0) * textureLod(texture, vec2(texcoord.x, texcoord.y),
level + 1.0);
return (p1 + p2 + p3 + p4 + p5 + p6) / vec4(11.0);
}
#endif /* HIGHQ_SCALING */
void main() {
vec4 col;
#if defined HIGHQ_SCALING || defined DIRECT_LOD_FETCH
if (viewportScale < 0.5 - eps) {
#ifdef DIRECT_LOD_FETCH
if (fixedLodLevel > eps) {
col = textureLod(texture0, v_textureCoordinate.st, fixedLodLevel);
} else
#endif /* DIRECT_LOD_FETCH */
{
#ifdef HIGHQ_SCALING
col = filterPureLinear8(texture0, v_textureCoordinate.st);
#else /* HIGHQ_SCALING */
col = texture(texture0, v_textureCoordinate.st);
#endif /* HIGHQ_SCALING */
}
} else
#endif /* defined HIGHQ_SCALING || defined DIRECT_LOD_FETCH */
{
#ifdef DIRECT_LOD_FETCH
if (fixedLodLevel > eps) {
col = textureLod(texture0, v_textureCoordinate.st, fixedLodLevel);
} else
#endif /* DIRECT_LOD_FETCH */
{
col = texture(texture0, v_textureCoordinate.st);
}
}
#ifdef USE_OCIO
fragColor = OCIODisplay(col, texture1);
#else /* USE_OCIO */
fragColor = col;
#endif /* USE_OCIO */
}
***
Shader Compilation Failure: "Failed to add fragment shader source from file:
highq_downscale.frag"
Segmentation fault: 11
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