From what I can tell, the recent work on SampleBias/SampleLevel did all of the work for us, we just need to take the same framework and include the case for the `sample_l` instruction.
Tested with some shaders from the native Linux version of Little Racers STREET.
-- v12: vkd3d-shader/tpf: For sample_l/sample_b, set lod swizzle to SCALAR. vkd3d-shader/tpf: Add support for emitting sample_l instructions vkd3d-shader/hlsl: Add support for SampleGrad() method tests: Add a test for SampleGrad() method
From: Ethan Lee flibitijibibo@gmail.com
Signed-off-by: Ethan Lee flibitijibibo@gmail.com --- Makefile.am | 1 + tests/sample-grad.shader_test | 36 +++++++++++++++++++++++++++++++++++ 2 files changed, 37 insertions(+) create mode 100644 tests/sample-grad.shader_test
diff --git a/Makefile.am b/Makefile.am index e06d0eeb..e30cb34b 100644 --- a/Makefile.am +++ b/Makefile.am @@ -158,6 +158,7 @@ vkd3d_shader_tests = \ tests/return.shader_test \ tests/round.shader_test \ tests/sample-bias.shader_test \ + tests/sample-grad.shader_test \ tests/sample-level.shader_test \ tests/sampler.shader_test \ tests/sampler-offset.shader_test \ diff --git a/tests/sample-grad.shader_test b/tests/sample-grad.shader_test new file mode 100644 index 00000000..db509730 --- /dev/null +++ b/tests/sample-grad.shader_test @@ -0,0 +1,36 @@ +[require] +shader model >= 4.0 + +[sampler 0] +filter linear linear linear +address clamp clamp clamp + +[texture 0] +size (2, 2) +levels 2 + +1.0 0.0 1.0 0.0 1.0 0.0 1.0 0.0 +1.0 0.0 1.0 0.0 1.0 0.0 1.0 0.0 + +0.0 0.0 1.0 0.0 + +[pixel shader todo] +sampler s; +Texture2D t; +uniform float4 grad; + +float4 main() : sv_target +{ + return t.SampleGrad(s, float2(0.5, 0.5), grad.xy, grad.zw); +} + +[test] +uniform 0 float4 0.0 0.0 0.0 0.0 +todo draw quad +todo probe all rgba (1.0, 0.0, 1.0, 0.0) +uniform 0 float4 1.0 1.0 1.0 1.0 +todo draw quad +todo probe all rgba (0.0, 0.0, 1.0, 0.0) +uniform 0 float4 2.0 2.0 2.0 2.0 +todo draw quad +todo probe all rgba (0.0, 0.0, 1.0, 0.0)
From: Ethan Lee flibitijibibo@gmail.com
Signed-off-by: Ethan Lee flibitijibibo@gmail.com --- libs/vkd3d-shader/hlsl.c | 17 ++++++++ libs/vkd3d-shader/hlsl.h | 5 ++- libs/vkd3d-shader/hlsl.y | 71 ++++++++++++++++++++++++++++++++ libs/vkd3d-shader/hlsl_codegen.c | 4 ++ libs/vkd3d-shader/tpf.c | 13 +++++- tests/sample-grad.shader_test | 14 +++---- 6 files changed, 114 insertions(+), 10 deletions(-)
diff --git a/libs/vkd3d-shader/hlsl.c b/libs/vkd3d-shader/hlsl.c index 617aef30..8c386b9b 100644 --- a/libs/vkd3d-shader/hlsl.c +++ b/libs/vkd3d-shader/hlsl.c @@ -1353,6 +1353,8 @@ struct hlsl_ir_node *hlsl_new_resource_load(struct hlsl_ctx *ctx, hlsl_src_from_node(&load->coords, params->coords); hlsl_src_from_node(&load->texel_offset, params->texel_offset); hlsl_src_from_node(&load->lod, params->lod); + hlsl_src_from_node(&load->ddx, params->ddx); + hlsl_src_from_node(&load->ddy, params->ddy); load->sampling_dim = params->sampling_dim; if (load->sampling_dim == HLSL_SAMPLER_DIM_GENERIC) load->sampling_dim = hlsl_deref_get_type(ctx, &load->resource)->sampler_dim; @@ -1643,6 +1645,8 @@ static struct hlsl_ir_node *clone_resource_load(struct hlsl_ctx *ctx, } clone_src(map, &dst->coords, &src->coords); clone_src(map, &dst->lod, &src->lod); + clone_src(map, &dst->ddx, &src->ddx); + clone_src(map, &dst->ddy, &src->ddy); clone_src(map, &dst->texel_offset, &src->texel_offset); dst->sampling_dim = src->sampling_dim; return &dst->node; @@ -2426,6 +2430,7 @@ static void dump_ir_resource_load(struct vkd3d_string_buffer *buffer, const stru [HLSL_RESOURCE_SAMPLE] = "sample", [HLSL_RESOURCE_SAMPLE_LOD] = "sample_lod", [HLSL_RESOURCE_SAMPLE_LOD_BIAS] = "sample_biased", + [HLSL_RESOURCE_SAMPLE_GRAD] = "sample_grad", [HLSL_RESOURCE_GATHER_RED] = "gather_red", [HLSL_RESOURCE_GATHER_GREEN] = "gather_green", [HLSL_RESOURCE_GATHER_BLUE] = "gather_blue", @@ -2449,6 +2454,16 @@ static void dump_ir_resource_load(struct vkd3d_string_buffer *buffer, const stru vkd3d_string_buffer_printf(buffer, ", lod = "); dump_src(buffer, &load->lod); } + if (load->ddx.node) + { + vkd3d_string_buffer_printf(buffer, ", ddx = "); + dump_src(buffer, &load->ddx); + } + if (load->ddy.node) + { + vkd3d_string_buffer_printf(buffer, ", ddy = "); + dump_src(buffer, &load->ddy); + } vkd3d_string_buffer_printf(buffer, ")"); }
@@ -2684,6 +2699,8 @@ static void free_ir_resource_load(struct hlsl_ir_resource_load *load) hlsl_cleanup_deref(&load->resource); hlsl_src_remove(&load->coords); hlsl_src_remove(&load->lod); + hlsl_src_remove(&load->ddx); + hlsl_src_remove(&load->ddy); hlsl_src_remove(&load->texel_offset); vkd3d_free(load); } diff --git a/libs/vkd3d-shader/hlsl.h b/libs/vkd3d-shader/hlsl.h index 6a4e314d..ab0cf6bc 100644 --- a/libs/vkd3d-shader/hlsl.h +++ b/libs/vkd3d-shader/hlsl.h @@ -612,6 +612,7 @@ enum hlsl_resource_load_type HLSL_RESOURCE_SAMPLE, HLSL_RESOURCE_SAMPLE_LOD, HLSL_RESOURCE_SAMPLE_LOD_BIAS, + HLSL_RESOURCE_SAMPLE_GRAD, HLSL_RESOURCE_GATHER_RED, HLSL_RESOURCE_GATHER_GREEN, HLSL_RESOURCE_GATHER_BLUE, @@ -623,7 +624,7 @@ struct hlsl_ir_resource_load struct hlsl_ir_node node; enum hlsl_resource_load_type load_type; struct hlsl_deref resource, sampler; - struct hlsl_src coords, lod, texel_offset; + struct hlsl_src coords, lod, ddx, ddy, texel_offset; enum hlsl_sampler_dim sampling_dim; };
@@ -825,7 +826,7 @@ struct hlsl_resource_load_params struct hlsl_type *format; enum hlsl_resource_load_type type; struct hlsl_ir_node *resource, *sampler; - struct hlsl_ir_node *coords, *lod, *texel_offset; + struct hlsl_ir_node *coords, *lod, *ddx, *ddy, *texel_offset; enum hlsl_sampler_dim sampling_dim; };
diff --git a/libs/vkd3d-shader/hlsl.y b/libs/vkd3d-shader/hlsl.y index 86f23665..958b6d26 100644 --- a/libs/vkd3d-shader/hlsl.y +++ b/libs/vkd3d-shader/hlsl.y @@ -3992,6 +3992,71 @@ static bool add_sample_lod_method_call(struct hlsl_ctx *ctx, struct list *instrs return true; }
+static bool add_sample_grad_method_call(struct hlsl_ctx *ctx, struct list *instrs, struct hlsl_ir_node *object, + const char *name, const struct parse_initializer *params, const struct vkd3d_shader_location *loc) +{ + const struct hlsl_type *object_type = object->data_type; + struct hlsl_resource_load_params load_params = { 0 }; + const unsigned int sampler_dim = hlsl_sampler_dim_count(object_type->sampler_dim); + const unsigned int offset_dim = hlsl_offset_dim_count(object_type->sampler_dim); + const struct hlsl_type *sampler_type; + struct hlsl_ir_node *load; + + load_params.type = HLSL_RESOURCE_SAMPLE_GRAD; + + if (params->args_count < 4 || params->args_count > 5 + !!offset_dim) + { + hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_WRONG_PARAMETER_COUNT, + "Wrong number of arguments to method '%s': expected from 4 to %u, but got %u.", + name, 5 + !!offset_dim, params->args_count); + return false; + } + + sampler_type = params->args[0]->data_type; + if (sampler_type->class != 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 (!(load_params.coords = add_implicit_conversion(ctx, instrs, params->args[1], + hlsl_get_vector_type(ctx, HLSL_TYPE_FLOAT, sampler_dim), loc))) + load_params.coords = params->args[1]; + + if (!(load_params.ddx = add_implicit_conversion(ctx, instrs, params->args[2], + hlsl_get_vector_type(ctx, HLSL_TYPE_FLOAT, sampler_dim), loc))) + load_params.ddx = params->args[2]; + + if (!(load_params.ddy = add_implicit_conversion(ctx, instrs, params->args[3], + hlsl_get_vector_type(ctx, HLSL_TYPE_FLOAT, sampler_dim), loc))) + load_params.ddy = params->args[3]; + + if (offset_dim && params->args_count > 4) + { + if (!(load_params.texel_offset = add_implicit_conversion(ctx, instrs, params->args[4], + hlsl_get_vector_type(ctx, HLSL_TYPE_INT, offset_dim), loc))) + return false; + } + + if (params->args_count > 4 + !!offset_dim) + hlsl_fixme(ctx, loc, "Tiled resource status argument."); + + load_params.format = object_type->e.resource_format; + load_params.resource = object; + load_params.sampler = params->args[0]; + + if (!(load = hlsl_new_resource_load(ctx, &load_params, loc))) + return false; + list_add_tail(instrs, &load->entry); + return true; +} + static bool add_method_call(struct hlsl_ctx *ctx, struct list *instrs, struct hlsl_ir_node *object, const char *name, const struct parse_initializer *params, const struct vkd3d_shader_location *loc) { @@ -4042,6 +4107,12 @@ static bool add_method_call(struct hlsl_ctx *ctx, struct list *instrs, struct hl { return add_sample_lod_method_call(ctx, instrs, object, name, params, loc); } + else if (!strcmp(name, "SampleGrad") + && object_type->sampler_dim != HLSL_SAMPLER_DIM_2DMS + && object_type->sampler_dim != HLSL_SAMPLER_DIM_2DMSARRAY) + { + return add_sample_grad_method_call(ctx, instrs, object, name, params, loc); + } else { struct vkd3d_string_buffer *string; diff --git a/libs/vkd3d-shader/hlsl_codegen.c b/libs/vkd3d-shader/hlsl_codegen.c index 638dab6e..cd9b4fb0 100644 --- a/libs/vkd3d-shader/hlsl_codegen.c +++ b/libs/vkd3d-shader/hlsl_codegen.c @@ -2674,6 +2674,10 @@ static void compute_liveness_recurse(struct hlsl_block *block, unsigned int loop load->texel_offset.node->last_read = instr->index; if (load->lod.node) load->lod.node->last_read = instr->index; + if (load->ddx.node) + load->ddx.node->last_read = instr->index; + if (load->ddy.node) + load->ddy.node->last_read = instr->index; break; } case HLSL_IR_RESOURCE_STORE: diff --git a/libs/vkd3d-shader/tpf.c b/libs/vkd3d-shader/tpf.c index eadad3b9..13751fa2 100644 --- a/libs/vkd3d-shader/tpf.c +++ b/libs/vkd3d-shader/tpf.c @@ -3327,7 +3327,7 @@ struct sm4_instruction struct sm4_register reg; enum vkd3d_sm4_swizzle_type swizzle_type; unsigned int swizzle; - } srcs[4]; + } srcs[5]; unsigned int src_count;
uint32_t idx[3]; @@ -4048,6 +4048,10 @@ static void write_sm4_sample(struct hlsl_ctx *ctx, struct vkd3d_bytecode_buffer instr.opcode = VKD3D_SM4_OP_SAMPLE_B; break;
+ case HLSL_RESOURCE_SAMPLE_GRAD: + instr.opcode = VKD3D_SM4_OP_SAMPLE_GRAD; + break; + default: vkd3d_unreachable(); } @@ -4075,6 +4079,12 @@ static void write_sm4_sample(struct hlsl_ctx *ctx, struct vkd3d_bytecode_buffer sm4_src_from_node(&instr.srcs[3], load->lod.node, VKD3DSP_WRITEMASK_ALL); ++instr.src_count; } + else if (load->load_type == HLSL_RESOURCE_SAMPLE_GRAD) + { + sm4_src_from_node(&instr.srcs[3], load->ddx.node, VKD3DSP_WRITEMASK_ALL); + sm4_src_from_node(&instr.srcs[4], load->ddy.node, VKD3DSP_WRITEMASK_ALL); + instr.src_count += 2; + }
write_sm4_instruction(buffer, &instr); } @@ -4873,6 +4883,7 @@ static void write_sm4_resource_load(struct hlsl_ctx *ctx,
case HLSL_RESOURCE_SAMPLE: case HLSL_RESOURCE_SAMPLE_LOD_BIAS: + case HLSL_RESOURCE_SAMPLE_GRAD: if (!load->sampler.var) { hlsl_fixme(ctx, &load->node.loc, "SM4 combined sample expression."); diff --git a/tests/sample-grad.shader_test b/tests/sample-grad.shader_test index db509730..c37da299 100644 --- a/tests/sample-grad.shader_test +++ b/tests/sample-grad.shader_test @@ -14,7 +14,7 @@ levels 2
0.0 0.0 1.0 0.0
-[pixel shader todo] +[pixel shader] sampler s; Texture2D t; uniform float4 grad; @@ -26,11 +26,11 @@ float4 main() : sv_target
[test] uniform 0 float4 0.0 0.0 0.0 0.0 -todo draw quad -todo probe all rgba (1.0, 0.0, 1.0, 0.0) +draw quad +probe all rgba (1.0, 0.0, 1.0, 0.0) uniform 0 float4 1.0 1.0 1.0 1.0 -todo draw quad -todo probe all rgba (0.0, 0.0, 1.0, 0.0) +draw quad +probe all rgba (0.0, 0.0, 1.0, 0.0) uniform 0 float4 2.0 2.0 2.0 2.0 -todo draw quad -todo probe all rgba (0.0, 0.0, 1.0, 0.0) +draw quad +probe all rgba (0.0, 0.0, 1.0, 0.0)
From: Ethan Lee flibitijibibo@gmail.com
Signed-off-by: Ethan Lee flibitijibibo@gmail.com --- libs/vkd3d-shader/tpf.c | 12 +++++++----- tests/sample-level.shader_test | 8 ++++---- 2 files changed, 11 insertions(+), 9 deletions(-)
diff --git a/libs/vkd3d-shader/tpf.c b/libs/vkd3d-shader/tpf.c index 13751fa2..fab39095 100644 --- a/libs/vkd3d-shader/tpf.c +++ b/libs/vkd3d-shader/tpf.c @@ -4044,6 +4044,10 @@ static void write_sm4_sample(struct hlsl_ctx *ctx, struct vkd3d_bytecode_buffer instr.opcode = VKD3D_SM4_OP_SAMPLE; break;
+ case HLSL_RESOURCE_SAMPLE_LOD: + instr.opcode = VKD3D_SM4_OP_SAMPLE_LOD; + break; + case HLSL_RESOURCE_SAMPLE_LOD_BIAS: instr.opcode = VKD3D_SM4_OP_SAMPLE_B; break; @@ -4074,7 +4078,8 @@ static void write_sm4_sample(struct hlsl_ctx *ctx, struct vkd3d_bytecode_buffer sm4_src_from_deref(ctx, &instr.srcs[2], sampler, sampler->var->data_type, VKD3DSP_WRITEMASK_ALL); instr.src_count = 3;
- if (load->load_type == HLSL_RESOURCE_SAMPLE_LOD_BIAS) + if (load->load_type == HLSL_RESOURCE_SAMPLE_LOD + || load->load_type == HLSL_RESOURCE_SAMPLE_LOD_BIAS) { sm4_src_from_node(&instr.srcs[3], load->lod.node, VKD3DSP_WRITEMASK_ALL); ++instr.src_count; @@ -4882,6 +4887,7 @@ static void write_sm4_resource_load(struct hlsl_ctx *ctx, break;
case HLSL_RESOURCE_SAMPLE: + case HLSL_RESOURCE_SAMPLE_LOD: case HLSL_RESOURCE_SAMPLE_LOD_BIAS: case HLSL_RESOURCE_SAMPLE_GRAD: if (!load->sampler.var) @@ -4911,10 +4917,6 @@ static void write_sm4_resource_load(struct hlsl_ctx *ctx, write_sm4_gather(ctx, buffer, resource_type, &load->node, &load->resource, &load->sampler, coords, HLSL_SWIZZLE(W, W, W, W), texel_offset); break; - - case HLSL_RESOURCE_SAMPLE_LOD: - hlsl_fixme(ctx, &load->node.loc, "SM4 sample-LOD expression."); - break; } }
diff --git a/tests/sample-level.shader_test b/tests/sample-level.shader_test index 564826d0..ec7c7e2a 100644 --- a/tests/sample-level.shader_test +++ b/tests/sample-level.shader_test @@ -14,7 +14,7 @@ levels 2
0.0 0.0 1.0 0.0
-[pixel shader todo] +[pixel shader] sampler s; Texture2D t; uniform float level; @@ -26,11 +26,11 @@ float4 main() : sv_target
[test] uniform 0 float4 0.0 0.0 0.0 0.0 -todo draw quad +draw quad probe all rgba (1.0, 0.0, 1.0, 0.0) uniform 0 float4 0.5 0.0 0.0 0.0 -todo draw quad +draw quad probe all rgba (0.5, 0.0, 1.0, 0.0) uniform 0 float4 1.0 0.0 0.0 0.0 -todo draw quad +draw quad probe all rgba (0.0, 0.0, 1.0, 0.0)
From: Ethan Lee flibitijibibo@gmail.com
Per Francisco Casas fcasas@codeweavers.com:
I just realized one more thing. I think we are not properly following the specification for both sample_l and sample_b.
In the Restrictions section of the documentation for sample_b it is mentioned that the last src register must use a single component selector if it is not a scalar immediate. This "select_component" is also ilustrated in the sample_l format:
sample_l[_aoffimmi(u,v,w)] dest[.mask], srcAddress[.swizzle], srcResource[.swizzle], srcSampler, srcLOD.select_component
Currently, we are not respecting that since sm4_src_from_node() sets
src->swizzle_type = VKD3D_SM4_SWIZZLE_VEC4;
by default.
It should be VKD3D_SM4_SWIZZLE_SCALAR in this case... The disassembly should show a single component in the swizzle of the last src register.
Signed-off-by: Ethan Lee flibitijibibo@gmail.com --- libs/vkd3d-shader/tpf.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/libs/vkd3d-shader/tpf.c b/libs/vkd3d-shader/tpf.c index fab39095..9f3f33ad 100644 --- a/libs/vkd3d-shader/tpf.c +++ b/libs/vkd3d-shader/tpf.c @@ -4082,6 +4082,7 @@ static void write_sm4_sample(struct hlsl_ctx *ctx, struct vkd3d_bytecode_buffer || load->load_type == HLSL_RESOURCE_SAMPLE_LOD_BIAS) { sm4_src_from_node(&instr.srcs[3], load->lod.node, VKD3DSP_WRITEMASK_ALL); + instr.srcs[3].swizzle_type = VKD3D_SM4_SWIZZLE_SCALAR; ++instr.src_count; } else if (load->load_type == HLSL_RESOURCE_SAMPLE_GRAD)
Zebediah Figura (@zfigura) commented about libs/vkd3d-shader/tpf.c:
|| load->load_type == HLSL_RESOURCE_SAMPLE_LOD_BIAS) { sm4_src_from_node(&instr.srcs[3], load->lod.node, VKD3DSP_WRITEMASK_ALL);
instr.srcs[3].swizzle_type = VKD3D_SM4_SWIZZLE_SCALAR;
This doesn't feel like quite the right way of addressing this, not least because this isn't the only similar case that we're violating the documentation. I believe that any one-component temp src is supposed to have a scalar swizzle, which means we should be handling that in sm4_register_from_node(). If we want to be clear about sample_b specifically, an assert for the swizzle type and/or the LOD dimension would be fine, although it doesn't quite feel necessary.
-
Ethan Lee -
Ethan Lee (＠flibitijibibo)
-
Zebediah Figura (＠zfigura)