diff options
| author | Luboš Luňák <l.lunak@collabora.com> | 2019-04-14 18:22:21 +0200 |
|---|---|---|
| committer | Luboš Luňák <l.lunak@collabora.com> | 2019-04-16 13:45:12 +0200 |
| commit | 1e3869ea1ce71922280ad9fc4e95e52fed722571 (patch) | |
| tree | 1410eabfdfd5224e11c159d6166065ea67707dbb /vcl/opengl | |
| parent | 0555bda4856626f520a14c33fa5ba8ff8dcb0ac8 (diff) | |
in dbgutil mode initialize texture contents with predictable garbage
So that textures do not start with random uninitialized contents.
Change-Id: Ie240f5f71ed77d5c6c22a120e96540a2d0d7c2ed
Reviewed-on: https://gerrit.libreoffice.org/70773
Tested-by: Jenkins
Reviewed-by: Luboš Luňák <l.lunak@collabora.com>
Diffstat (limited to 'vcl/opengl')
| -rw-r--r-- | vcl/opengl/texture.cxx | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/vcl/opengl/texture.cxx b/vcl/opengl/texture.cxx index 19b48967e314..e0af455194c7 100644 --- a/vcl/opengl/texture.cxx +++ b/vcl/opengl/texture.cxx @@ -65,7 +65,21 @@ ImplOpenGLTexture::ImplOpenGLTexture( int nWidth, int nHeight, bool bAllocate ) CHECK_GL_ERROR(); if( bAllocate ) { +#ifdef DBG_UTIL + std::vector< sal_uInt8 > buffer; + buffer.resize( nWidth * nHeight * 4 ); + for( size_t i = 0; i < size_t( nWidth * nHeight ); ++i ) + { // pre-fill the texture with deterministic garbage + bool odd = (i & 0x01); + buffer[ i * 4 ] = odd ? 0x40 : 0xBF; + buffer[ i * 4 + 1 ] = 0x80; + buffer[ i * 4 + 2 ] = odd ? 0xBF : 0x40; + buffer[ i * 4 + 3 ] = 0xFF; + } + glTexImage2D( GL_TEXTURE_2D, 0, constInternalFormat, nWidth, nHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, buffer.data()); +#else glTexImage2D( GL_TEXTURE_2D, 0, constInternalFormat, nWidth, nHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr ); +#endif CHECK_GL_ERROR(); } |