From 43d999e346f5a4b5ea813b63d157725d3f84335e Mon Sep 17 00:00:00 2001 From: Yuri Roubinsky Date: Thu, 25 Nov 2021 23:34:58 +0300 Subject: Fix uniform array alignment to fix a bug --- servers/rendering/renderer_rd/renderer_storage_rd.cpp | 12 +++++++++++- servers/rendering/renderer_rd/shader_compiler_rd.cpp | 4 +++- 2 files changed, 14 insertions(+), 2 deletions(-) (limited to 'servers/rendering') diff --git a/servers/rendering/renderer_rd/renderer_storage_rd.cpp b/servers/rendering/renderer_rd/renderer_storage_rd.cpp index 04acc871b4..fd26efa1fb 100644 --- a/servers/rendering/renderer_rd/renderer_storage_rd.cpp +++ b/servers/rendering/renderer_rd/renderer_storage_rd.cpp @@ -2652,7 +2652,17 @@ void RendererStorageRD::MaterialData::update_uniform_buffer(const Map 0) { + size = ShaderLanguage::get_type_size(E.value.type) * E.value.array_size; + int m = (16 * E.value.array_size); + if ((size % m) != 0U) { + size += m - (size % m); + } + } else { + size = ShaderLanguage::get_type_size(E.value.type); + } ERR_CONTINUE(offset + size > p_buffer_size); #endif uint8_t *data = &p_buffer[offset]; diff --git a/servers/rendering/renderer_rd/shader_compiler_rd.cpp b/servers/rendering/renderer_rd/shader_compiler_rd.cpp index f7c8ca1487..77d3a2e766 100644 --- a/servers/rendering/renderer_rd/shader_compiler_rd.cpp +++ b/servers/rendering/renderer_rd/shader_compiler_rd.cpp @@ -661,6 +661,7 @@ String ShaderCompilerRD::_dump_node_code(const SL::Node *p_node, int p_level, Ge uniform_sizes.write[uniform.order] = _get_datatype_size(ShaderLanguage::TYPE_UINT); uniform_alignments.write[uniform.order] = _get_datatype_alignment(ShaderLanguage::TYPE_UINT); } else { + // The following code enforces a 16-byte alignment of uniform arrays. if (uniform.array_size > 0) { int size = _get_datatype_size(uniform.type) * uniform.array_size; int m = (16 * uniform.array_size); @@ -668,10 +669,11 @@ String ShaderCompilerRD::_dump_node_code(const SL::Node *p_node, int p_level, Ge size += m - (size % m); } uniform_sizes.write[uniform.order] = size; + uniform_alignments.write[uniform.order] = 16; } else { uniform_sizes.write[uniform.order] = _get_datatype_size(uniform.type); + uniform_alignments.write[uniform.order] = _get_datatype_alignment(uniform.type); } - uniform_alignments.write[uniform.order] = _get_datatype_alignment(uniform.type); } } -- cgit v1.2.3