[PATCH vkd3d 4/6] vkd3d-shader: Improve asserts for write mask component count.

[Józef Kucia]

From: Józef Kucia

Helps Clang Static Analyzer.

Signed-off-by: Józef Kucia 
---
 libs/vkd3d-shader/vkd3d_shader_private.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/libs/vkd3d-shader/vkd3d_shader_private.h b/libs/vkd3d-shader/vkd3d_shader_private.h
index 73ba93fe0133..54d070504d60 100644
--- a/libs/vkd3d-shader/vkd3d_shader_private.h
+++ b/libs/vkd3d-shader/vkd3d_shader_private.h
@@ -883,13 +883,14 @@ static inline unsigned int vkd3d_write_mask_get_component_idx(DWORD write_mask)

static inline unsigned int vkd3d_write_mask_component_count(DWORD write_mask)
 {
-    assert(write_mask);
-    return vkd3d_popcount(write_mask & VKD3DSP_WRITEMASK_ALL);
+    unsigned int count = vkd3d_popcount(write_mask & VKD3DSP_WRITEMASK_ALL);
+    assert(1 <= count && count <= VKD3D_VEC4_SIZE);
+    return count;
 }

static inline unsigned int vkd3d_write_mask_from_component_count(unsigned int component_count)
 {
-    assert(component_count <= 4);
+    assert(component_count <= VKD3D_VEC4_SIZE);
     return (VKD3DSP_WRITEMASK_0 << component_count) - 1;
 }

[Henri Verbeet]

Signed-off-by: Henri Verbeet