vcl/opengl/texture.cxx | 14 ++++++++++++++
1 file changed, 14 insertions(+)
New commits:
commit 1e3869ea1ce71922280ad9fc4e95e52fed722571
Author: Luboš Luňák <l.lu...@collabora.com>
AuthorDate: Sun Apr 14 18:22:21 2019 +0200
Commit: Luboš Luňák <l.lu...@collabora.com>
CommitDate: Tue Apr 16 13:45:12 2019 +0200
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.lu...@collabora.com>
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();
}
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