AuroraMiddleware/SPIRV-Cross
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Refactor block IO emission to use bitset.

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This commit is contained in:
Hans-Kristian Arntzen 2018-03-12 15:59:34 +01:00
parent 955eac522b
commit 012377f811
1 changed files with 16 additions and 13 deletions
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29
spirv_glsl.cpp
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@ -1851,8 +1851,8 @@ void CompilerGLSL::fixup_image_load_store_access()
void CompilerGLSL::emit_declared_builtin_block(StorageClass storage, ExecutionModel model)
{
uint64_t emitted_builtins = 0;
uint64_t global_builtins = 0;
Bitset emitted_builtins;
Bitset global_builtins;
const SPIRVariable *block_var = nullptr;
bool emitted_block = false;
bool builtin_array = false;
@ -1870,7 +1870,7 @@ void CompilerGLSL::emit_declared_builtin_block(StorageClass storage, ExecutionMo
auto &var = id.get<SPIRVariable>();
auto &type = get<SPIRType>(var.basetype);
bool block = has_decoration(type.self, DecorationBlock);
uint64_t builtins = 0;
Bitset builtins;
if (var.storage == storage && block && is_builtin_variable(var))
{
@ -1879,7 +1879,7 @@ void CompilerGLSL::emit_declared_builtin_block(StorageClass storage, ExecutionMo
{
if (m.builtin)
{
builtins |= 1ull << m.builtin_type;
builtins.set(m.builtin_type);
if (m.builtin_type == BuiltInCullDistance)
cull_distance_size = get<SPIRType>(type.member_types[index]).array.front();
else if (m.builtin_type == BuiltInClipDistance)
@ -1894,7 +1894,7 @@ void CompilerGLSL::emit_declared_builtin_block(StorageClass storage, ExecutionMo
auto &m = meta[var.self].decoration;
if (m.builtin)
{
global_builtins |= 1ull << m.builtin_type;
global_builtins.set(m.builtin_type);
if (m.builtin_type == BuiltInCullDistance)
cull_distance_size = type.array.front();
else if (m.builtin_type == BuiltInClipDistance)
@ -1902,7 +1902,7 @@ void CompilerGLSL::emit_declared_builtin_block(StorageClass storage, ExecutionMo
}
}
if (!builtins)
if (builtins.empty())
continue;
if (emitted_block)
@ -1914,15 +1914,18 @@ void CompilerGLSL::emit_declared_builtin_block(StorageClass storage, ExecutionMo
block_var = &var;
}
global_builtins &= (1ull << BuiltInPosition) | (1ull << BuiltInPointSize) | (1ull << BuiltInClipDistance) |
(1ull << BuiltInCullDistance);
global_builtins = Bitset(global_builtins.get_lower() &
((1ull << BuiltInPosition) |
(1ull << BuiltInPointSize) |
(1ull << BuiltInClipDistance) |
(1ull << BuiltInCullDistance)));
// Try to collect all other declared builtins.
if (!emitted_block)
emitted_builtins = global_builtins;
// Can't declare an empty interface block.
if (!emitted_builtins)
if (emitted_builtins.empty())
return;
if (storage == StorageClassOutput)
@ -1931,13 +1934,13 @@ void CompilerGLSL::emit_declared_builtin_block(StorageClass storage, ExecutionMo
statement("in gl_PerVertex");
begin_scope();
if (emitted_builtins & (1ull << BuiltInPosition))
if (emitted_builtins.get(BuiltInPosition))
statement("vec4 gl_Position;");
if (emitted_builtins & (1ull << BuiltInPointSize))
if (emitted_builtins.get(BuiltInPointSize))
statement("float gl_PointSize;");
if (emitted_builtins & (1ull << BuiltInClipDistance))
if (emitted_builtins.get(BuiltInClipDistance))
statement("float gl_ClipDistance[", clip_distance_size, "];");
if (emitted_builtins & (1ull << BuiltInCullDistance))
if (emitted_builtins.get(BuiltInCullDistance))
statement("float gl_CullDistance[", cull_distance_size, "];");
bool tessellation = model == ExecutionModelTessellationEvaluation || model == ExecutionModelTessellationControl;