Displaying 1 result from an estimated 1 matches for "egl_alpha_size".
2019 Jan 12
7
[Bug 109330] New: GL_ALPHA_BITS set to non-zero with EGL_PLATFORM_GBM_MESA
...Severity: normal
Priority: medium
Component: Drivers/DRI/nouveau
Assignee: nouveau at lists.freedesktop.org
Reporter: contact at emersion.fr
QA Contact: nouveau at lists.freedesktop.org
When creating an EGL context with EGL_PLATFORM_GBM_MESA and EGL_ALPHA_SIZE=1,
Nouveau produces completely transparent images when using glReadPixels. Note
that my code works with other drivers (i915, amdgpu), only Nouveau is affected.
How to reproduce:
1. Create an EGL context with these attribs:
static const EGLint config_attribs[] = {
EGL_RED_SIZE, 1,...