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dep/reshadefx: Support generating GLSL ES

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This commit is contained in:
Stenzek
2023-12-06 23:35:58 +10:00
parent bcc2042154
commit ba5d1a109e
3 changed files with 53 additions and 23 deletions
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57
dep/reshadefx/src/effect_codegen_glsl.cpp
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@ -13,11 +13,12 @@
using namespace reshadefx;
namespace {
class codegen_glsl final : public codegen
{
public:
codegen_glsl(bool vulkan_semantics, bool debug_info, bool uniforms_to_spec_constants, bool enable_16bit_types, bool flip_vert_y)
: _debug_info(debug_info), _vulkan_semantics(vulkan_semantics), _uniforms_to_spec_constants(uniforms_to_spec_constants), _enable_16bit_types(enable_16bit_types), _flip_vert_y(flip_vert_y)
codegen_glsl(bool gles, bool vulkan_semantics, bool debug_info, bool uniforms_to_spec_constants, bool enable_16bit_types, bool flip_vert_y)
: _gles(gles), _debug_info(debug_info), _vulkan_semantics(vulkan_semantics), _uniforms_to_spec_constants(uniforms_to_spec_constants), _enable_16bit_types(enable_16bit_types), _flip_vert_y(flip_vert_y)
{
// Create default block and reserve a memory block to avoid frequent reallocations
std::string &block = _blocks.emplace(0, std::string()).first->second;
@ -41,6 +42,7 @@ private:
std::string _compute_block;
std::unordered_map<id, std::string> _names;
std::unordered_map<id, std::string> _blocks;
bool _gles = false;
bool _debug_info = false;
bool _vulkan_semantics = false;
bool _uniforms_to_spec_constants = false;
@ -755,7 +757,7 @@ private:
if (!global)
code += '\t';
if (initializer_value != 0 && type.has(type::q_const))
if (initializer_value != 0 && (type.has(type::q_const) && !_gles))
code += "const ";
write_type(code, type);
@ -843,8 +845,8 @@ private:
_blocks.at(0) += "#ifdef ENTRY_POINT_" + func.unique_name + '\n';
if (stype == shader_type::cs)
_blocks.at(0) += "layout(local_size_x = " + std::to_string(num_threads[0]) +
", local_size_y = " + std::to_string(num_threads[1]) +
", local_size_z = " + std::to_string(num_threads[2]) + ") in;\n";
", local_size_y = " + std::to_string(num_threads[1]) +
", local_size_z = " + std::to_string(num_threads[2]) + ") in;\n";
function_info entry_point;
entry_point.return_type = { type::t_void };
@ -1004,7 +1006,7 @@ private:
}
else
{
if (member.type.is_boolean())
if (member.type.is_boolean() || (_gles && member.type.is_integral()))
{
write_type<false, false>(code, member.type);
code += '(';
@ -1012,7 +1014,7 @@ private:
code += semantic_to_builtin(std::move(in_param_name), member.semantic, stype);
if (member.type.is_boolean())
if (member.type.is_boolean() || (_gles && member.type.is_integral()))
code += ')';
}
@ -1097,7 +1099,7 @@ private:
}
else
{
if (param_type.is_boolean())
if (param_type.is_boolean() || (_gles && param_type.is_integral()))
{
write_type<false, false>(code, param_type);
code += '(';
@ -1105,7 +1107,7 @@ private:
code += semantic_to_builtin("_in_param" + std::to_string(i), func.parameter_list[i].semantic, stype);
if (param_type.is_boolean())
if (param_type.is_boolean() || (_gles && param_type.is_integral()))
code += ')';
}
}
@ -1345,9 +1347,31 @@ private:
}
else
{
expr_code += '.';
for (unsigned int i = 0; i < 4 && op.swizzle[i] >= 0; ++i)
expr_code += "xyzw"[op.swizzle[i]];
// can't swizzle scalars
if (_gles && op.from.is_scalar())
{
// => e.g. vec3(expr, expr, expr).xyz
type.clear();
write_type<false, false>(type, op.to);
std::string new_code = type;
new_code += '(';
const unsigned int components = op.to.components();
for (unsigned int i = 0; i < components; ++i)
{
if (i > 0)
new_code += ',';
new_code += '(' + expr_code + ')';
}
new_code += ')';
expr_code = std::move(new_code);
}
else
{
expr_code += '.';
for (unsigned int i = 0; i < 4 && op.swizzle[i] >= 0; ++i)
expr_code += "xyzw"[op.swizzle[i]];
}
}
break;
}
@ -1812,7 +1836,7 @@ private:
write_location(code, loc);
if (flags != 0)
if (flags != 0 && !_gles)
{
_enable_control_flow_attributes = true;
@ -1896,7 +1920,7 @@ private:
code += _blocks.at(prev_block);
std::string attributes;
if (flags != 0)
if (flags != 0 && !_gles)
{
_enable_control_flow_attributes = true;
@ -2158,8 +2182,9 @@ private:
_blocks.at(0) += "{\n" + _blocks.at(_last_block) + "}\n";
}
};
} // namespace
codegen *reshadefx::create_codegen_glsl(bool vulkan_semantics, bool debug_info, bool uniforms_to_spec_constants, bool enable_16bit_types, bool flip_vert_y)
codegen *reshadefx::create_codegen_glsl(bool gles, bool vulkan_semantics, bool debug_info, bool uniforms_to_spec_constants, bool enable_16bit_types, bool flip_vert_y)
{
return new codegen_glsl(vulkan_semantics, debug_info, uniforms_to_spec_constants, enable_16bit_types, flip_vert_y);
return new codegen_glsl(gles, vulkan_semantics, debug_info, uniforms_to_spec_constants, enable_16bit_types, flip_vert_y);
}