The unsigned half float format needs special handling because the
texture that the test uploads tries to use negative values.
---
tests/all.py | 2 ++
tests/fbo/fbo-generatemipmap-formats.c | 7 +++++++
2 files changed, 9 insertions(+)
diff --git a/tests/all.py b/tests/all.py
index ed2d95e..053b0dd 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -2288,6 +2288,8 @@ arb_texture_compression_bptc = {}
spec['ARB_texture_compression_bptc'] = arb_texture_compression_bptc
arb_texture_compression_bptc['invalid formats'] =
concurrent_test('arb_texture_compression-invalid-formats bptc')
add_concurrent_test(arb_texture_compression_bptc, 'bptc-modes')
+add_fbo_generatemipmap_extension(arb_texture_compression_bptc,
'GL_ARB_texture_compression_bptc-unorm', 'fbo-generatemipmap-formats')
+add_fbo_generatemipmap_extension(arb_texture_compression_bptc,
'GL_ARB_texture_compression_bptc-float', 'fbo-generatemipmap-formats')
ext_vertex_array_bgra = {}
spec['EXT_vertex_array_bgra'] = ext_vertex_array_bgra
diff --git a/tests/fbo/fbo-generatemipmap-formats.c
b/tests/fbo/fbo-generatemipmap-formats.c
index c7b01fb..9cb7d4e 100644
--- a/tests/fbo/fbo-generatemipmap-formats.c
+++ b/tests/fbo/fbo-generatemipmap-formats.c
@@ -393,6 +393,13 @@ test_mipmap_drawing(int x, int y, int level, GLuint
internalformat)
g[0] = g[1] = g[2] = g[3] = 0;
/* If alpha in DXT1 is >= 0.5, it should be white. */
b[3] = 1;
+ } else if (internalformat == GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT) {
+ /* The texture is uploaded with values in the range
+ * -5->+5 and these get mapped to 0,1 when drawing.
+ * However when compressing to the unsigned float
+ * compressed format the -5 values will get clamped to
+ * 0 which comes out as 0.5 */
+ r[1] = r[2] = g[0] = g[2] = b[0] = b[1] = 0.5f;
}
if (tex_width == 256) {
--
1.9.3
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