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[dxbc] Declare dynamically indexed UBOs with the maximum possible size

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Fixes #3861.
This commit is contained in:
Philip Rebohle 2024-02-23 13:39:29 +01:00
parent 24d4c9c938
commit 9004c132ed
1 changed files with 7 additions and 2 deletions
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9
src/dxbc/dxbc_compiler.cpp
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@ -809,8 +809,13 @@ namespace dxvk {
// dcl_constant_buffer has one operand with two indices:
// (0) Constant buffer register ID (cb#)
// (1) Number of constants in the buffer
const uint32_t bufferId = ins.dst[0].idx[0].offset;
const uint32_t elementCount = ins.dst[0].idx[1].offset;
uint32_t bufferId = ins.dst[0].idx[0].offset;
uint32_t elementCount = ins.dst[0].idx[1].offset;
// With dynamic indexing, games will often index constant buffers
// out of bounds. Declare an upper bound to stay within spec.
if (ins.controls.accessType() == DxbcConstantBufferAccessType::DynamicallyIndexed)
elementCount = 4096;
this->emitDclConstantBufferVar(bufferId, elementCount,
str::format("cb", bufferId).c_str());