Add support for 8- and 16-bit types to GLSL and MSL.

In GLSL, 8-bit types require GL_EXT_shader_8bit_storage. 16-bit types
can use either GL_AMD_gpu_shader_int16/GL_AMD_gpu_shader_half_float or
GL_EXT_shader_16bit_storage.

1 files changed, 46 insertions, 0 deletions

diff --git a/shaders/vulkan/vert/small-storage.vk.vert b/shaders/vulkan/vert/small-storage.vk.vert
new file mode 100644
index 00000000..195f3d55
--- /dev/null
+++ b/shaders/vulkan/vert/small-storage.vk.vert
@@ -0,0 +1,46 @@
+#version 450 core
+
+// GL_EXT_shader_16bit_storage doesn't support input/output.
+#extension GL_EXT_shader_8bit_storage : require
+#extension GL_AMD_gpu_shader_int16 : require
+#extension GL_AMD_gpu_shader_half_float : require
+
+layout(location = 0, component = 0) in int16_t foo;
+layout(location = 0, component = 1) in uint16_t bar;
+layout(location = 1) in float16_t baz;
+
+layout(binding = 0) uniform block {
+    i16vec2 a;
+    u16vec2 b;
+    i8vec2 c;
+    u8vec2 d;
+    f16vec2 e;
+};
+
+layout(binding = 1) readonly buffer storage {
+    i16vec3 f;
+    u16vec3 g;
+    i8vec3 h;
+    u8vec3 i;
+    f16vec3 j;
+};
+
+layout(push_constant) uniform pushconst {
+    i16vec4 k;
+    u16vec4 l;
+    i8vec4 m;
+    u8vec4 n;
+    f16vec4 o;
+};
+
+layout(location = 0) out i16vec4 p;
+layout(location = 1) out u16vec4 q;
+layout(location = 2) out f16vec4 r;
+
+void main() {
+    p = i16vec4(int(foo) + ivec4(ivec2(a), ivec2(c)) - ivec4(ivec3(f) / ivec3(h), 1) + ivec4(k) + ivec4(m));
+    q = u16vec4(uint(bar) + uvec4(uvec2(b), uvec2(d)) - uvec4(uvec3(g) / uvec3(i), 1) + uvec4(l) + uvec4(n));
+    r = f16vec4(float(baz) + vec4(vec2(e), 0, 1) - vec4(vec3(j), 1) + vec4(o));
+    gl_Position = vec4(0, 0, 0, 1);
+}
+