https://bugs.freedesktop.org/show_bug.cgi?id=77738
Priority: medium Bug ID: 77738 Keywords: regression CC: brianp@vmware.com Assignee: dri-devel@lists.freedesktop.org Summary: [r600g, bisected] 4 piglit texwrap tests regressed Severity: normal Classification: Unclassified OS: All Reporter: pavel.ondracka@email.cz Hardware: Other Status: NEW Version: git Component: Drivers/Gallium/r600 Product: Mesa
./texwrap GL_EXT_texture_sRGB-s3tc bordercolor -fbo -auto Testing GL_EXT_texture_sRGB-s3tc. Testing the border color only. Testing GL_COMPRESSED_SRGB, border color only Testing GL_COMPRESSED_SRGB_ALPHA, border color only Testing GL_COMPRESSED_SLUMINANCE, border color only Testing GL_COMPRESSED_SLUMINANCE_ALPHA, border color only Fail with NEAREST and CLAMP_TO_BORDER at (95,36) @ 0,0 Expected: 25 25 25 204 Observed: 25 25 25 26 Fail with NEAREST and MIRROR_CLAMP_TO_BORDER_EXT at (273,36) @ 0,0 Expected: 25 25 25 204 Observed: 25 25 25 26 Fail with LINEAR and CLAMP at (6,125) @ 0,0 Expected: 82 82 82 216 Observed: 83 83 83 83 Fail with LINEAR and CLAMP_TO_BORDER at (95,125) @ 0,0 Expected: 25 25 25 204 Observed: 25 25 25 26 Fail with LINEAR and MIRROR_CLAMP_EXT at (184,125) @ 0,0 Expected: 82 82 82 216 Observed: 83 83 83 83 Fail with LINEAR and MIRROR_CLAMP_TO_BORDER_EXT at (273,125) @ 0,0 Expected: 25 25 25 204 Observed: 25 25 25 26 Testing GL_COMPRESSED_SRGB_S3TC_DXT1, border color only Testing GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1, border color only Testing GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3, border color only Testing GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5, border color only
Another failing tests: texwrap GL_EXT_texture_sRGB bordercolor swizzled -fbo -auto texwrap GL_EXT_texture_sRGB bordercolor -fbo -auto texwrap GL_EXT_texture_sRGB-s3tc bordercolor swizzled -fbo -auto
First bad commit: commit 12b959c351d81a35139ad0e504f6f6896077dbd0 Author: Brian Paul brianp@vmware.com Date: Tue Mar 25 11:04:40 2014 -0600
st/mesa: overhaul texture / sample swizzle code
Previously we only examined the GL_DEPTH_MODE state to determine the sampler view swizzle for depth textures. Now we also consider the texture base format for color textures too.
The basic idea is if we're sampling from a RGB texture we always want to get A=1, even if the actual hardware format might be RGBA. We had assumed that the texture's A values were always one since that's what Mesa's texstore code does. But if we render to the RGBA texture, the A values might not be 1. Subsequent sampling didn't return the right values.
Now we examine the user-specified texture base format vs. the actual gallium format to determine the right swizzle.
Fixes several fbo-blending-formats, fbo-clear-formats and fbo-tex-rgbx failures with VMware/svga driver (and possibly other drivers). No other piglit regressions with softpipe or VMware/svga.
Reviewed-by: Marek Olšák maraeo@gmail.com
GPU: Advanced Micro Devices, Inc. [AMD/ATI] Turks XT [Radeon HD 6670/7670] Kernel: 3.13.10-200.fc20.x86_64 mesa: f8ae2a56c6164979223d2268691e354fe56d4bec libdrm: d4083dc762a2974c35ecd16be995272bbb6d57b4