[PATCH v2 1/3] vkd3d-shader/hlsl: Produce 2D resource declarations and loads for tex1D().

[Nikolay Sivov]

From: Nikolay Sivov

Signed-off-by: Nikolay Sivov 
---
 libs/vkd3d-shader/hlsl.y                 | 37 +++++++++++++++++++++++-
 tests/hlsl/combined-samplers.shader_test |  6 ++--
 2 files changed, 39 insertions(+), 4 deletions(-)

diff --git a/libs/vkd3d-shader/hlsl.y b/libs/vkd3d-shader/hlsl.y
index 67fd9f6f..fb6d485e 100644
--- a/libs/vkd3d-shader/hlsl.y
+++ b/libs/vkd3d-shader/hlsl.y
@@ -3457,7 +3457,42 @@ static bool intrinsic_tex(struct hlsl_ctx *ctx, const struct parse_initializer *

if (!(coords = add_implicit_conversion(ctx, params->instrs, params->args[1],
             hlsl_get_vector_type(ctx, HLSL_TYPE_FLOAT, hlsl_sampler_dim_count(dim)), loc)))
-        coords = params->args[1];
+    {
+        return false;
+    }
+
+    /* tex1D() functions never produce 1D resource declarations. For newer profiles half offset
+       is used for the second coordinate, while older ones appear to replicate first coordinate.*/
+    if (dim == HLSL_SAMPLER_DIM_1D)
+    {
+        struct hlsl_ir_load *load;
+        struct hlsl_ir_node *half;
+        struct hlsl_ir_var *var;
+        unsigned int idx = 0;
+
+        if (!(var = hlsl_new_synthetic_var(ctx, "coords", hlsl_get_vector_type(ctx, HLSL_TYPE_FLOAT, 2), loc)))
+            return false;
+
+        initialize_var_components(ctx, params->instrs, var, &idx, coords);
+        if (shader_profile_version_ge(ctx, 4, 0))
+        {
+            if (!(half = hlsl_new_float_constant(ctx, 0.5f, loc)))
+                return false;
+            hlsl_block_add_instr(params->instrs, half);
+
+            initialize_var_components(ctx, params->instrs, var, &idx, half);
+        }
+        else
+            initialize_var_components(ctx, params->instrs, var, &idx, coords);
+
+        if (!(load = hlsl_new_var_load(ctx, var, loc)))
+            return false;
+        hlsl_block_add_instr(params->instrs, &load->node);
+
+        coords = &load->node;
+
+        dim = HLSL_SAMPLER_DIM_2D;
+    }

load_params.coords = coords;
     load_params.resource = params->args[0];
diff --git a/tests/hlsl/combined-samplers.shader_test b/tests/hlsl/combined-samplers.shader_test
index 57644c26..465c11cb 100644
--- a/tests/hlsl/combined-samplers.shader_test
+++ b/tests/hlsl/combined-samplers.shader_test
@@ -121,7 +121,7 @@ float4 main() : sv_target
 }

-[pixel shader todo]
+[pixel shader]
 sampler sam[2];

float4 main() : sv_target
@@ -130,8 +130,8 @@ float4 main() : sv_target
 }

[test]
-todo draw quad
-todo probe all rgba (1, 1, 1, 11)
+draw quad
+probe all rgba (1, 1, 1, 11)

[require]