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5th Attempt to fix texture rendering on OpenGL 1.1 cards

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This commit is contained in:
Enrico Turri 2018-06-22 15:11:04 +02:00
parent 15c69a90ec
commit de540de9aa
4 changed files with 27 additions and 8 deletions
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28
xs/src/slic3r/GUI/GLTexture.cpp
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@ -72,7 +72,6 @@ bool GLTexture::load_from_file(const std::string& filename, bool generate_mipmap
}
// sends data to gpu
::glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
::glGenTextures(1, &m_id);
::glBindTexture(GL_TEXTURE_2D, m_id);
@ -131,16 +130,35 @@ void GLTexture::render_texture(unsigned int tex_id, float left, float right, flo
{
::glEnable(GL_BLEND);
::glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
::glEnable(GL_TEXTURE_2D);
::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
::glBindTexture(GL_TEXTURE_2D, (GLuint)tex_id);
//###############################################################################################################################
::glBegin(GL_TRIANGLES);
::glTexCoord2f(0.0f, 1.0f); ::glVertex2f(left, bottom);
::glTexCoord2f(1.0f, 1.0f); ::glVertex2f(right, bottom);
::glTexCoord2f(1.0f, 0.0f); ::glVertex2f(right, top);
::glTexCoord2f(1.0f, 0.0f); ::glVertex2f(right, top);
::glTexCoord2f(0.0f, 0.0f); ::glVertex2f(left, top);
::glTexCoord2f(0.0f, 1.0f); ::glVertex2f(left, bottom);
/*
::glBegin(GL_QUADS);
::glTexCoord2f(0.0f, 1.0f); ::glVertex3f(left, bottom, 0.0f);
::glTexCoord2f(1.0f, 1.0f); ::glVertex3f(right, bottom, 0.0f);
::glTexCoord2f(1.0f, 0.0f); ::glVertex3f(right, top, 0.0f);
::glTexCoord2f(0.0f, 0.0f); ::glVertex3f(left, top, 0.0f);
::glTexCoord2f(0.0f, 1.0f); ::glVertex2f(left, bottom);
::glTexCoord2f(1.0f, 1.0f); ::glVertex2f(right, bottom);
::glTexCoord2f(1.0f, 0.0f); ::glVertex2f(right, top);
::glTexCoord2f(0.0f, 0.0f); ::glVertex2f(left, top);
*/
// ::glTexCoord2f(0.0f, 1.0f); ::glVertex3f(left, bottom, 0.0f);
// ::glTexCoord2f(1.0f, 1.0f); ::glVertex3f(right, bottom, 0.0f);
// ::glTexCoord2f(1.0f, 0.0f); ::glVertex3f(right, top, 0.0f);
// ::glTexCoord2f(0.0f, 0.0f); ::glVertex3f(left, top, 0.0f);
//###############################################################################################################################
::glEnd();
::glBindTexture(GL_TEXTURE_2D, 0);