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Attempt to fix #1067

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This commit is contained in:
Enrico Turri 2018-07-23 13:54:43 +02:00
parent 33175a02f3
commit 0bd8affab9
2 changed files with 7 additions and 4 deletions
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9
xs/src/slic3r/GUI/GLTexture.cpp
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@ -79,7 +79,8 @@ bool GLTexture::load_from_file(const std::string& filename, bool generate_mipmap
if (generate_mipmaps)
{
// we manually generate mipmaps because glGenerateMipmap() function is not reliable on all graphics cards
_generate_mipmaps(image);
unsigned int levels_count = _generate_mipmaps(image);
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 1 + levels_count);
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
}
else
@ -149,14 +150,14 @@ void GLTexture::render_texture(unsigned int tex_id, float left, float right, flo
::glDisable(GL_BLEND);
}
void GLTexture::_generate_mipmaps(wxImage& image)
unsigned int GLTexture::_generate_mipmaps(wxImage& image)
{
int w = image.GetWidth();
int h = image.GetHeight();
GLint level = 0;
std::vector<unsigned char> data(w * h * 4, 0);
while ((w > 1) && (h > 1))
while ((w > 1) || (h > 1))
{
++level;
@ -183,6 +184,8 @@ void GLTexture::_generate_mipmaps(wxImage& image)
::glTexImage2D(GL_TEXTURE_2D, level, GL_RGBA, (GLsizei)w, (GLsizei)h, 0, GL_RGBA, GL_UNSIGNED_BYTE, (const void*)data.data());
}
return (unsigned int)level;
}
} // namespace GUI

2
xs/src/slic3r/GUI/GLTexture.hpp
View file

@ -32,7 +32,7 @@ namespace GUI {
static void render_texture(unsigned int tex_id, float left, float right, float bottom, float top);
protected:
void _generate_mipmaps(wxImage& image);
unsigned int _generate_mipmaps(wxImage& image);
};
} // namespace GUI