diff options
| -rw-r--r-- | src/mesa/main/teximage.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c index 45a13a73699..c48b86d1563 100644 --- a/src/mesa/main/teximage.c +++ b/src/mesa/main/teximage.c @@ -1594,14 +1594,20 @@ error_check_subtexture_dimensions(struct gl_context *ctx, return GL_TRUE; } - /* size must be multiple of bw by bh or equal to whole texture size */ - if ((subWidth % bw != 0) && subWidth != (GLint) destImage->Width) { + /* The size must be a multiple of bw x bh, or we must be using a + * offset+size that exactly hits the edge of the image. This + * is important for small mipmap levels (1x1, 2x1, etc) and for + * NPOT textures. + */ + if ((subWidth % bw != 0) && + (xoffset + subWidth != (GLint) destImage->Width)) { _mesa_error(ctx, GL_INVALID_OPERATION, "%s%dD(width = %d)", function, dims, subWidth); return GL_TRUE; } - if ((subHeight % bh != 0) && subHeight != (GLint) destImage->Height) { + if ((subHeight % bh != 0) && + (yoffset + subHeight != (GLint) destImage->Height)) { _mesa_error(ctx, GL_INVALID_OPERATION, "%s%dD(height = %d)", function, dims, subHeight); return GL_TRUE; |