[PATCH vkd3d 4/5] vkd3d-shader/hlsl: Write SM4 texture declarations.

[Giovanni Mascellani]

Signed-off-by: Giovanni Mascellani <gmascellani at codeweavers.com>

Il 12/10/21 04:58, Zebediah Figura ha scritto:
> Signed-off-by: Zebediah Figura <zfigura at codeweavers.com>
> ---
>   libs/vkd3d-shader/hlsl_sm4.c | 45 ++++++++++++++++++++++++++++++++++++
>   1 file changed, 45 insertions(+)
> 
> diff --git a/libs/vkd3d-shader/hlsl_sm4.c b/libs/vkd3d-shader/hlsl_sm4.c
> index 9b212227f..c979e14ac 100644
> --- a/libs/vkd3d-shader/hlsl_sm4.c
> +++ b/libs/vkd3d-shader/hlsl_sm4.c
> @@ -704,6 +704,24 @@ static void write_sm4_rdef(struct hlsl_ctx *ctx, struct dxbc_writer *dxbc)
>       dxbc_writer_add_section(dxbc, TAG_RDEF, buffer.data, buffer.size);
>   }
>   
> +static enum vkd3d_sm4_resource_type sm4_resource_dimension(const struct hlsl_type *type)
> +{
> +    switch (type->sampler_dim)
> +    {
> +        case HLSL_SAMPLER_DIM_1D:
> +            return VKD3D_SM4_RESOURCE_TEXTURE_1D;
> +        case HLSL_SAMPLER_DIM_2D:
> +            return VKD3D_SM4_RESOURCE_TEXTURE_2D;
> +        case HLSL_SAMPLER_DIM_3D:
> +            return VKD3D_SM4_RESOURCE_TEXTURE_3D;
> +        case HLSL_SAMPLER_DIM_CUBE:
> +            return VKD3D_SM4_RESOURCE_TEXTURE_CUBE;
> +        default:
> +            assert(0);
> +            return 0;
> +    }
> +}
> +
>   struct sm4_register
>   {
>       enum vkd3d_sm4_register_type type;
> @@ -941,6 +959,24 @@ static void write_sm4_dcl_constant_buffer(struct vkd3d_bytecode_buffer *buffer,
>       write_sm4_instruction(buffer, &instr);
>   }
>   
> +static void write_sm4_dcl_texture(struct vkd3d_bytecode_buffer *buffer, const struct hlsl_ir_var *var)
> +{
> +    const struct sm4_instruction instr =
> +    {
> +        .opcode = VKD3D_SM4_OP_DCL_RESOURCE
> +                | (sm4_resource_dimension(var->data_type) << VKD3D_SM4_RESOURCE_TYPE_SHIFT),
> +
> +        .dsts[0].reg.type = VKD3D_SM4_RT_RESOURCE,
> +        .dsts[0].reg.idx = {var->reg.id},
> +        .dsts[0].reg.idx_count = 1,
> +        .dst_count = 1,
> +
> +        .idx[0] = sm4_resource_format(var->data_type) * 0x1111,
> +        .idx_count = 1,
> +    };
> +    write_sm4_instruction(buffer, &instr);
> +}
> +
>   static void write_sm4_dcl_semantic(struct hlsl_ctx *ctx, struct vkd3d_bytecode_buffer *buffer, const struct hlsl_ir_var *var)
>   {
>       const struct hlsl_profile_info *profile = ctx->profile;
> @@ -1418,6 +1454,15 @@ static void write_sm4_shdr(struct hlsl_ctx *ctx,
>               write_sm4_dcl_constant_buffer(&buffer, cbuffer);
>       }
>   
> +    LIST_FOR_EACH_ENTRY(var, &ctx->extern_vars, const struct hlsl_ir_var, extern_entry)
> +    {
> +        if (!var->reg.allocated || var->data_type->type != HLSL_CLASS_OBJECT)
> +            continue;
> +
> +        if (var->data_type->base_type == HLSL_TYPE_TEXTURE)
> +            write_sm4_dcl_texture(&buffer, var);
> +    }
> +
>       LIST_FOR_EACH_ENTRY(var, &ctx->extern_vars, struct hlsl_ir_var, extern_entry)
>       {
>           if ((var->is_input_semantic && var->last_read) || (var->is_output_semantic && var->first_write))
>