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Fix segfault when using more than 32 colors in colormap

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Matthias Hochsteger 2024-05-16 10:49:11 +02:00
parent 184a6ba4c5
commit 05c01ee884
1 changed files with 4 additions and 3 deletions
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7
libsrc/visualization/mvdraw.cpp
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@ -497,7 +497,8 @@ namespace netgen
{
ntexcols = ncols;
GLubyte colortexture[4*32];
ArrayMem<GLubyte, 4*32> colortexture;
colortexture.SetSize(4*ncols);
const double colp[][3] =
{
@ -532,8 +533,8 @@ namespace netgen
// glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
glTexImage1D (GL_TEXTURE_1D, 0, 4, ncols, 0, GL_RGBA, GL_UNSIGNED_BYTE, colortexture);
glTexImage2D (GL_TEXTURE_2D, 0, 4, ncols, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, colortexture);
glTexImage1D (GL_TEXTURE_1D, 0, 4, ncols, 0, GL_RGBA, GL_UNSIGNED_BYTE, colortexture.Data());
glTexImage2D (GL_TEXTURE_2D, 0, 4, ncols, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, colortexture.Data());
glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, typ); // DECAL or MODULATE