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Workaround Intel OpenGL driver in get pixel depth

This commit is contained in:
Emil Lenngren 2022-04-30 22:20:02 +02:00
parent 8526e3ee2a
commit d009c2a539
1 changed files with 6 additions and 0 deletions
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6
libultraship/libultraship/Lib/Fast3D/gfx_opengl.cpp
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@ -776,8 +776,13 @@ static std::map<std::pair<float, float>, uint16_t> gfx_opengl_get_pixel_depth(in
res.emplace(*coordinates.begin(), (depth_stencil_value >> 18) << 2);
} else {
if (pixel_depth_rb_size < coordinates.size()) {
// Resizing a renderbuffer seems broken with Intel's driver, so recreate one instead.
glBindFramebuffer(GL_FRAMEBUFFER, pixel_depth_fb);
glDeleteRenderbuffers(1, &pixel_depth_rb);
glGenRenderbuffers(1, &pixel_depth_rb);
glBindRenderbuffer(GL_RENDERBUFFER, pixel_depth_rb);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, coordinates.size(), 1);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, pixel_depth_rb);
glBindRenderbuffer(GL_RENDERBUFFER, 0);
pixel_depth_rb_size = coordinates.size();
@ -814,6 +819,7 @@ static std::map<std::pair<float, float>, uint16_t> gfx_opengl_get_pixel_depth(in
}
glBindFramebuffer(GL_FRAMEBUFFER, current_framebuffer);
return res;
}