[PATCH v5 vkd3d 12/13] vkd3d-shader/hlsl: Implement texture gather methods.
Giovanni Mascellani
gmascellani at codeweavers.com
Wed Dec 22 04:46:19 CST 2021
Signed-off-by: Giovanni Mascellani <gmascellani at codeweavers.com>
On 22/12/21 00:08, Zebediah Figura wrote:
> From: Francisco Casas <fcasas at codeweavers.com>
>
> Signed-off-by: Francisco Casas <fcasas at codeweavers.com>
> Signed-off-by: Zebediah Figura <zfigura at codeweavers.com>
> ---
> v5: Strip newlines from hlsl_fixme(), get rid of the as-yet-unused
> status_out_arg variable, expand the srcs[] array to have size 4, use sm4
> register helpers, minor stylistic tweaks.
>
> libs/vkd3d-shader/hlsl.c | 4 ++
> libs/vkd3d-shader/hlsl.h | 4 ++
> libs/vkd3d-shader/hlsl.y | 99 ++++++++++++++++++++++++++++++++++++
> libs/vkd3d-shader/hlsl_sm4.c | 57 ++++++++++++++++++++-
> 4 files changed, 163 insertions(+), 1 deletion(-)
>
> diff --git a/libs/vkd3d-shader/hlsl.c b/libs/vkd3d-shader/hlsl.c
> index 26175008d..856fb0f9d 100644
> --- a/libs/vkd3d-shader/hlsl.c
> +++ b/libs/vkd3d-shader/hlsl.c
> @@ -1280,6 +1280,10 @@ static void dump_ir_resource_load(struct vkd3d_string_buffer *buffer, const stru
> {
> [HLSL_RESOURCE_LOAD] = "load_resource",
> [HLSL_RESOURCE_SAMPLE] = "sample",
> + [HLSL_RESOURCE_GATHER_RED] = "gather_red",
> + [HLSL_RESOURCE_GATHER_GREEN] = "gather_green",
> + [HLSL_RESOURCE_GATHER_BLUE] = "gather_blue",
> + [HLSL_RESOURCE_GATHER_ALPHA] = "gather_alpha",
> };
>
> vkd3d_string_buffer_printf(buffer, "%s(resource = ", type_names[load->load_type]);
> diff --git a/libs/vkd3d-shader/hlsl.h b/libs/vkd3d-shader/hlsl.h
> index 2396adb40..49fa8d9d3 100644
> --- a/libs/vkd3d-shader/hlsl.h
> +++ b/libs/vkd3d-shader/hlsl.h
> @@ -378,6 +378,10 @@ enum hlsl_resource_load_type
> {
> HLSL_RESOURCE_LOAD,
> HLSL_RESOURCE_SAMPLE,
> + HLSL_RESOURCE_GATHER_RED,
> + HLSL_RESOURCE_GATHER_GREEN,
> + HLSL_RESOURCE_GATHER_BLUE,
> + HLSL_RESOURCE_GATHER_ALPHA,
> };
>
> struct hlsl_ir_resource_load
> diff --git a/libs/vkd3d-shader/hlsl.y b/libs/vkd3d-shader/hlsl.y
> index 9b1e5c071..460ba44bb 100644
> --- a/libs/vkd3d-shader/hlsl.y
> +++ b/libs/vkd3d-shader/hlsl.y
> @@ -1930,6 +1930,105 @@ static bool add_method_call(struct hlsl_ctx *ctx, struct list *instrs, struct hl
> list_add_tail(instrs, &load->node.entry);
> return true;
> }
> + else if (!strcmp(name, "Gather") || !strcmp(name, "GatherRed") || !strcmp(name, "GatherBlue")
> + || !strcmp(name, "GatherGreen") || !strcmp(name, "GatherAlpha"))
> + {
> + const unsigned int sampler_dim = sampler_dim_count(object_type->sampler_dim);
> + enum hlsl_resource_load_type load_type;
> + const struct hlsl_type *sampler_type;
> + struct hlsl_ir_resource_load *load;
> + struct hlsl_ir_node *offset = NULL;
> + struct hlsl_ir_load *sampler_load;
> + struct hlsl_type *result_type;
> + struct hlsl_ir_node *coords;
> + unsigned int read_channel;
> +
> + if (!strcmp(name, "GatherGreen"))
> + {
> + load_type = HLSL_RESOURCE_GATHER_GREEN;
> + read_channel = 1;
> + }
> + else if (!strcmp(name, "GatherBlue"))
> + {
> + load_type = HLSL_RESOURCE_GATHER_BLUE;
> + read_channel = 2;
> + }
> + else if (!strcmp(name, "GatherAlpha"))
> + {
> + load_type = HLSL_RESOURCE_GATHER_ALPHA;
> + read_channel = 3;
> + }
> + else
> + {
> + load_type = HLSL_RESOURCE_GATHER_RED;
> + read_channel = 0;
> + }
> +
> + if (!strcmp(name, "Gather"))
> + {
> + if (params->args_count != 2 && params->args_count != 3)
> + {
> + hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_WRONG_PARAMETER_COUNT,
> + "Wrong number of arguments to method 'Gather': expected 2 or 3, but got %u.", params->args_count);
> + return false;
> + }
> + }
> + else if (params->args_count < 2 || params->args_count == 5 || params->args_count > 7)
> + {
> + hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_WRONG_PARAMETER_COUNT,
> + "Wrong number of arguments to method '%s': expected 2,3,4,6 or 7, but got %u.", name, params->args_count);
> + return false;
> + }
> +
> + if (params->args_count == 4 || params->args_count == 7)
> + hlsl_fixme(ctx, loc, "Tiled resource fully mapped status.");
> +
> + if (params->args_count == 6 || params->args_count == 7)
> + hlsl_fixme(ctx, loc, "Multiple Gather() offset parameters.");
> +
> + if (params->args_count == 3 || params->args_count == 4)
> + {
> + if (!(offset = add_implicit_conversion(ctx, instrs, params->args[2],
> + hlsl_get_vector_type(ctx, HLSL_TYPE_INT, sampler_dim), loc)))
> + return false;
> + }
> +
> + sampler_type = params->args[0]->data_type;
> + if (sampler_type->type != HLSL_CLASS_OBJECT || sampler_type->base_type != HLSL_TYPE_SAMPLER
> + || sampler_type->sampler_dim != HLSL_SAMPLER_DIM_GENERIC)
> + {
> + struct vkd3d_string_buffer *string;
> +
> + if ((string = hlsl_type_to_string(ctx, sampler_type)))
> + hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE,
> + "Wrong type for argument 0 of %s(): expected 'sampler', but got '%s'.", name, string->buffer);
> + hlsl_release_string_buffer(ctx, string);
> + return false;
> + }
> +
> + if (read_channel >= object_type->e.resource_format->dimx)
> + {
> + hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE,
> + "Method %s() requires at least %d channels.", name, read_channel + 1);
> + return false;
> + }
> +
> + result_type = hlsl_get_vector_type(ctx, object_type->e.resource_format->base_type, 4);
> +
> + /* Only HLSL_IR_LOAD can return an object. */
> + sampler_load = hlsl_ir_load(params->args[0]);
> +
> + if (!(coords = add_implicit_conversion(ctx, instrs, params->args[1],
> + hlsl_get_vector_type(ctx, HLSL_TYPE_FLOAT, sampler_dim), loc)))
> + return false;
> +
> + if (!(load = hlsl_new_resource_load(ctx, result_type,
> + load_type, object_load->src.var, object_load->src.offset.node,
> + sampler_load->src.var, sampler_load->src.offset.node, coords, offset, loc)))
> + return false;
> + list_add_tail(instrs, &load->node.entry);
> + return true;
> + }
> else
> {
> struct vkd3d_string_buffer *string;
> diff --git a/libs/vkd3d-shader/hlsl_sm4.c b/libs/vkd3d-shader/hlsl_sm4.c
> index 127628677..6805e7442 100644
> --- a/libs/vkd3d-shader/hlsl_sm4.c
> +++ b/libs/vkd3d-shader/hlsl_sm4.c
> @@ -794,7 +794,7 @@ struct sm4_instruction
> struct sm4_register reg;
> enum vkd3d_sm4_swizzle_type swizzle_type;
> unsigned int swizzle;
> - } srcs[3];
> + } srcs[4];
> unsigned int src_count;
>
> uint32_t idx[2];
> @@ -1658,6 +1658,41 @@ static void write_sm4_loop(struct hlsl_ctx *ctx,
> write_sm4_instruction(buffer, &instr);
> }
>
> +static void write_sm4_gather(struct hlsl_ctx *ctx, struct vkd3d_bytecode_buffer *buffer,
> + const struct hlsl_type *resource_type, const struct hlsl_ir_node *dst,
> + const struct hlsl_deref *resource, const struct hlsl_deref *sampler,
> + const struct hlsl_ir_node *coords, unsigned int swizzle, const struct hlsl_ir_node *texel_offset)
> +{
> + struct sm4_src_register *src;
> + struct sm4_instruction instr;
> +
> + memset(&instr, 0, sizeof(instr));
> +
> + instr.opcode = VKD3D_SM4_OP_GATHER4;
> +
> + sm4_dst_from_node(&instr.dsts[0], dst);
> + instr.dst_count = 1;
> +
> + sm4_src_from_node(&instr.srcs[instr.src_count++], coords, VKD3DSP_WRITEMASK_ALL);
> +
> + /* FIXME: Use an aoffimmi modifier if possible. */
> + if (texel_offset)
> + {
> + instr.opcode = VKD3D_SM5_OP_GATHER4_PO;
> + sm4_src_from_node(&instr.srcs[instr.src_count++], texel_offset, VKD3DSP_WRITEMASK_ALL);
> + }
> +
> + sm4_src_from_deref(ctx, &instr.srcs[instr.src_count++], resource, resource_type, instr.dsts[0].writemask);
> +
> + src = &instr.srcs[instr.src_count++];
> + sm4_src_from_deref(ctx, src, sampler, sampler->var->data_type, VKD3DSP_WRITEMASK_ALL);
> + src->reg.dim = VKD3D_SM4_DIMENSION_VEC4;
> + src->swizzle_type = VKD3D_SM4_SWIZZLE_SCALAR;
> + src->swizzle = swizzle;
> +
> + write_sm4_instruction(buffer, &instr);
> +}
> +
> static void write_sm4_resource_load(struct hlsl_ctx *ctx,
> struct vkd3d_bytecode_buffer *buffer, const struct hlsl_ir_resource_load *load)
> {
> @@ -1698,6 +1733,26 @@ static void write_sm4_resource_load(struct hlsl_ctx *ctx,
> write_sm4_sample(ctx, buffer, resource_type, &load->node,
> &load->resource, &load->sampler, coords, texel_offset);
> break;
> +
> + case HLSL_RESOURCE_GATHER_RED:
> + write_sm4_gather(ctx, buffer, resource_type, &load->node, &load->resource,
> + &load->sampler, coords, HLSL_SWIZZLE(X, X, X, X), texel_offset);
> + break;
> +
> + case HLSL_RESOURCE_GATHER_GREEN:
> + write_sm4_gather(ctx, buffer, resource_type, &load->node, &load->resource,
> + &load->sampler, coords, HLSL_SWIZZLE(Y, Y, Y, Y), texel_offset);
> + break;
> +
> + case HLSL_RESOURCE_GATHER_BLUE:
> + write_sm4_gather(ctx, buffer, resource_type, &load->node, &load->resource,
> + &load->sampler, coords, HLSL_SWIZZLE(Z, Z, Z, Z), texel_offset);
> + break;
> +
> + case HLSL_RESOURCE_GATHER_ALPHA:
> + write_sm4_gather(ctx, buffer, resource_type, &load->node, &load->resource,
> + &load->sampler, coords, HLSL_SWIZZLE(W, W, W, W), texel_offset);
> + break;
> }
> }
>
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