| Bug ID | 94037 |
|---|---|
| Summary | [Gallium] glGetQueryObject with GL_ANY_SAMPLES_PASSED returns the same as with GL_SAMPLES_PASSED |
| Product | Mesa |
| Version | unspecified |
| Hardware | x86-64 (AMD64) |
| OS | Linux (All) |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | Drivers/Gallium/r600 |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | peter.fiss@gmx.de |
| QA Contact | dri-devel@lists.freedesktop.org |
Created attachment 121579 [details] Source code of the test program. Needs SDL2 to build. It shows a red background if the describes bug exists. The OpenGL-Wiki says, the function should return "GL_FALSE if none of the scoped drawing commands generate samples that pass the depth test; otherwise, the value is GL_TRUE". Source: https://www.opengl.org/wiki/Query_Object When calling glGetQueryObjecti64v on r600 or nouveau (probably on any gallium driver) however, it returns the number of samples which passed the depth test. This would be correct behaviour if the argument was GL_SAMPLES_PASSED instead of GL_ANY_SAMPLES_PASSED. I have attached the source code of a simple example program. It worked correctly on the following platforms: - Arch Linux with Intel Ivy Bridge graphics (Mesa 11.1.1-1) - Windows 7 with the same Intel graphics - Windows 7 with Nvidia GeForce GT 640M - Windows 7 with ATI Radeon HD 5670 It showed incorrect behaviour on these systems: - Arch Linux with Nouveau and GeForce GT 640M (Mesa 11.1.1-1) - Manjaro with r600 and Radeon HD 5670 (Mesa 11.1.1-1) Note that the bugtracker does not allow me to specify 11.1 as mesa version.
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