Francisco Casas : vkd3d-shader/hlsl: Properly check argument count in SampleLevel method.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: 32e6f594f21f325b658fb755d2dbb81fc75eaf93
URL:    https://gitlab.winehq.org/wine/vkd3d/-/commit/32e6f594f21f325b658fb755d2dbb8...

Author: Francisco Casas 
Date:   Wed Apr 27 16:31:19 2022 -0400

vkd3d-shader/hlsl: Properly check argument count in SampleLevel method.

Also, TextureCube and TextureCubeArray don't support the offset
argument, so this check is updated here too.

Signed-off-by: Francisco Casas

---

libs/vkd3d-shader/hlsl.y | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/libs/vkd3d-shader/hlsl.y b/libs/vkd3d-shader/hlsl.y
index 65600b7a..a5513134 100644
--- a/libs/vkd3d-shader/hlsl.y
+++ b/libs/vkd3d-shader/hlsl.y
@@ -2748,10 +2748,11 @@ static bool add_method_call(struct hlsl_ctx *ctx, struct list *instrs, struct hl
         struct hlsl_ir_load *sampler_load;
         struct hlsl_ir_node *coords, *lod;

-        if (params->args_count != 3 && params->args_count != 4)
+        if (params->args_count < 3 || params->args_count > 4 + !!offset_dim)
         {
             hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_WRONG_PARAMETER_COUNT,
-                    "Wrong number of arguments to method 'SampleLevel': expected 3 or 4, but got %u.", params->args_count);
+                    "Wrong number of arguments to method 'SampleLevel': expected from 3 to %u, but got %u.",
+                    4 + !!offset_dim, params->args_count);
             return false;
         }

@@ -2779,13 +2780,16 @@ static bool add_method_call(struct hlsl_ctx *ctx, struct list *instrs, struct hl
                 hlsl_get_scalar_type(ctx, HLSL_TYPE_FLOAT), loc)))
             lod = params->args[2];

-        if (params->args_count == 4)
+        if (offset_dim && params->args_count > 3)
         {
             if (!(offset = add_implicit_conversion(ctx, instrs, params->args[3],
                     hlsl_get_vector_type(ctx, HLSL_TYPE_INT, offset_dim), loc)))
                 return false;
         }

+        if (params->args_count > 3 + !!offset_dim)
+            hlsl_fixme(ctx, loc, "Tiled resource status argument.");
+
         if (!(load = hlsl_new_sample_lod(ctx, object_type->e.resource_format,
                 &object_load->src, &sampler_load->src, coords, offset, lod, loc)))
             return false;