diff options
Diffstat (limited to 'src/mesa/main/texstore.c')
| -rw-r--r-- | src/mesa/main/texstore.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c index a94df532c6..c65b9a99d8 100644 --- a/src/mesa/main/texstore.c +++ b/src/mesa/main/texstore.c @@ -3940,21 +3940,26 @@ linear_to_nonlinear(GLfloat cl) #endif /* FEATURE_EXT_texture_sRGB */ + +/** + * Can the given type represent negative values? + */ static INLINE GLboolean type_with_negative_values(GLenum type) { - switch (type) { - case GL_BYTE: - case GL_SHORT: - case GL_INT: - case GL_FLOAT: - case GL_HALF_FLOAT_ARB: - return GL_TRUE; + switch (type) { + case GL_BYTE: + case GL_SHORT: + case GL_INT: + case GL_FLOAT: + case GL_HALF_FLOAT_ARB: + return GL_TRUE; default: return GL_FALSE; - } + } } + /** * This is the software fallback for Driver.GetTexImage(). * All error checking will have been done before this routine is called. @@ -4107,9 +4112,9 @@ _mesa_get_teximage(GLcontext *ctx, GLenum target, GLint level, GLbitfield transferOps = 0x0; /* clamp does not apply to GetTexImage (final conversion)? - Looks like we need clamp though when going from format containing - negative values to unsigned format */ - + * Looks like we need clamp though when going from format + * containing negative values to unsigned format. + */ if (!type_with_negative_values(type) && (texImage->TexFormat->DataType == GL_FLOAT || texImage->TexFormat->DataType == GL_SIGNED_NORMALIZED)) |