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error-check parameters to setup_texture()

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This commit is contained in:
David Rose 2009-06-07 17:13:36 +00:00
parent c57cd2fa14
commit eccc5cfdf9
1 changed files with 16 additions and 2 deletions
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18
panda/src/gobj/texture.cxx
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@ -3761,17 +3761,31 @@ void Texture::
do_setup_texture(Texture::TextureType texture_type, int x_size, int y_size,
int z_size, Texture::ComponentType component_type,
Texture::Format format) {
if (texture_type == TT_cube_map) {
switch (texture_type) {
case TT_1d_texture:
nassertv(y_size == 1 && z_size == 1);
break;
case TT_2d_texture:
nassertv(z_size == 1);
break;
case TT_3d_texture:
break;
case TT_cube_map:
// Cube maps must always consist of six square images.
nassertv(x_size == y_size && z_size == 6);
// In principle the wrap mode shouldn't mean anything to a cube
// map, but some drivers seem to misbehave if it's other than
// WM_clamp.
_wrap_u = WM_clamp;
_wrap_v = WM_clamp;
_wrap_w = WM_clamp;
break;
}
if (texture_type != TT_2d_texture) {
do_clear_simple_ram_image();
}