diff options
| author | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2020-05-15 09:20:08 +0200 |
|---|---|---|
| committer | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2020-05-22 10:32:11 +0200 |
| commit | 880f709fd079817eac3e798280b833ba13dd2515 (patch) | |
| tree | 355f87ab10e99da92d2a04ef24fca8158ea58f26 /src/gui/rhi/qrhigles2_p_p.h | |
| parent | 3ec0df4b5f9bf82918e0b783f547d2bc560f5ccf (diff) | |
RHI: facilitate compressed atlas textures in gles2 backend
Since glCompressedTexImage2D() does not allow zero data, it could not
be executed during texture build. Instead it would be done during the
first subresource upload. This made atlasing clumsy, since one had to
introduce a fake upload of the full texture size before the subtexture
uploads. This commits lets the gles2 backend deal with that instead.
Introduces the UsedAsCompressedAtlas QRhiTexture::Flag for opting in
to this behavior.
Task-number: QTBUG-78582
Change-Id: Ib6e4ea637c62cc8a51bd9a4a06e59882f335f2a7
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Diffstat (limited to 'src/gui/rhi/qrhigles2_p_p.h')
| -rw-r--r-- | src/gui/rhi/qrhigles2_p_p.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/gui/rhi/qrhigles2_p_p.h b/src/gui/rhi/qrhigles2_p_p.h index e326b661d9..4f64c6d0a3 100644 --- a/src/gui/rhi/qrhigles2_p_p.h +++ b/src/gui/rhi/qrhigles2_p_p.h @@ -148,6 +148,7 @@ struct QGles2Texture : public QRhiTexture GLenum gltype; QGles2SamplerData samplerState; bool specified = false; + bool compressedAtlasBuilt = false; int mipLevelCount = 0; enum Access { |