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vkd3d-shader/hlsl: Implement the GetRenderTargetSampleCount() intrinsic.

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This commit is contained in:
Elizabeth Figura
2024-06-10 17:06:54 -05:00
committed by Henri Verbeet
parent a5a75d45d3
commit 71a3d55e8c
Notes: Henri Verbeet 2024-07-11 00:41:24 +02:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/924
5 changed files with 46 additions and 2 deletions
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27
libs/vkd3d-shader/tpf.c
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@@ -5042,6 +5042,25 @@ static void write_sm4_store_uav_typed(const struct tpf_writer *tpf, const struct
write_sm4_instruction(tpf, &instr);
}
static void write_sm4_rasterizer_sample_count(const struct tpf_writer *tpf, const struct hlsl_ir_node *dst)
{
struct sm4_instruction instr;
memset(&instr, 0, sizeof(instr));
instr.opcode = VKD3D_SM4_OP_SAMPLE_INFO;
instr.extra_bits |= VKD3DSI_SAMPLE_INFO_UINT << VKD3D_SM4_INSTRUCTION_FLAGS_SHIFT;
sm4_dst_from_node(&instr.dsts[0], dst);
instr.dst_count = 1;
instr.srcs[0].reg.type = VKD3DSPR_RASTERIZER;
instr.srcs[0].reg.dimension = VSIR_DIMENSION_VEC4;
instr.srcs[0].swizzle = VKD3D_SHADER_SWIZZLE(X, X, X, X);
instr.src_count = 1;
write_sm4_instruction(tpf, &instr);
}
static void write_sm4_expr(const struct tpf_writer *tpf, const struct hlsl_ir_expr *expr)
{
const struct hlsl_ir_node *arg1 = expr->operands[0].node;
@@ -5057,6 +5076,14 @@ static void write_sm4_expr(const struct tpf_writer *tpf, const struct hlsl_ir_ex
switch (expr->op)
{
case HLSL_OP0_RASTERIZER_SAMPLE_COUNT:
if (tpf->ctx->profile->type == VKD3D_SHADER_TYPE_PIXEL && hlsl_version_ge(tpf->ctx, 4, 1))
write_sm4_rasterizer_sample_count(tpf, &expr->node);
else
hlsl_error(tpf->ctx, &expr->node.loc, VKD3D_SHADER_ERROR_HLSL_INCOMPATIBLE_PROFILE,
"GetRenderTargetSampleCount() can only be used from a pixel shader using version 4.1 or higher.");
break;
case HLSL_OP1_ABS:
switch (dst_type->e.numeric.type)
{