https://bugs.freedesktop.org/show_bug.cgi?id=91673
Bug ID: 91673
Summary: Segfault when calling glTexSubImage2D on storage
texture to bound FBO
Product: Mesa
Version: 10.5
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: major
Priority: medium
Component: GLX
Assignee: mesa-dev@lists.freedesktop.org
Reporter: dongseong.hw...@intel.com
QA Contact: mesa-dev@lists.freedesktop.org
Counterpart chromium project issue:
https://code.google.com/p/chromium/issues/detail?id=521904
Following code causes segfault
GLuint tex_;
GLuint fbo_;
glGenTextures(1, &tex_);
glBindTexture(GL_TEXTURE_2D, tex_);
glGenFramebuffers(1, &fbo_);
glBindFramebuffer(GL_FRAMEBUFFER, fbo_);
glFramebufferTexture2D(GL_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0,
GL_TEXTURE_2D,
tex_,
0);
glBindTexture(GL_TEXTURE_2D, tex_);
glTexStorage2D(GL_TEXTURE_2D, 2, GL_RGBA8, 2, 2);
// SEGFAULT
glTexSubImage2D(GL_TEXTURE_2D,
0,
0, 0,
2, 2,
GL_RGBA, GL_UNSIGNED_BYTE,
source_pixels);
Here's buildable minimal case;
https://github.com/ds-hwang/opengl_snippets/blob/master/glx/texture_storage_fbo_crash.cpp
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