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Merge pull request #51610 from Chaosus/shader_fix_varying_error_3.x

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[3.x] Fix shader crash when using local var with the same name as varying
This commit is contained in:
Yuri Roubinsky 2021-08-13 10:38:08 +03:00 committed by GitHub
commit 17bbdba80e
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 15 additions and 6 deletions
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4
drivers/gles2/shader_compiler_gles2.cpp
View file

@ -549,7 +549,7 @@ String ShaderCompilerGLES2::_dump_node_code(const SL::Node *p_node, int p_level,
SL::VariableNode *var_node = (SL::VariableNode *)p_node;
bool use_fragment_varying = false;
if (current_func_name != vertex_name) {
if (!var_node->is_local && current_func_name != vertex_name) {
if (p_assigning) {
if (shader->varyings.has(var_node->name)) {
use_fragment_varying = true;
@ -650,7 +650,7 @@ String ShaderCompilerGLES2::_dump_node_code(const SL::Node *p_node, int p_level,
SL::ArrayNode *arr_node = (SL::ArrayNode *)p_node;
bool use_fragment_varying = false;
if (current_func_name != vertex_name) {
if (!arr_node->is_local && current_func_name != vertex_name) {
if (arr_node->assign_expression != nullptr) {
use_fragment_varying = true;
} else {

4
drivers/gles3/shader_compiler_gles3.cpp
View file

@ -683,7 +683,7 @@ String ShaderCompilerGLES3::_dump_node_code(const SL::Node *p_node, int p_level,
SL::VariableNode *vnode = (SL::VariableNode *)p_node;
bool use_fragment_varying = false;
if (current_func_name != vertex_name) {
if (!vnode->is_local && current_func_name != vertex_name) {
if (p_assigning) {
if (shader->varyings.has(vnode->name)) {
use_fragment_varying = true;
@ -802,7 +802,7 @@ String ShaderCompilerGLES3::_dump_node_code(const SL::Node *p_node, int p_level,
SL::ArrayNode *anode = (SL::ArrayNode *)p_node;
bool use_fragment_varying = false;
if (current_func_name != vertex_name) {
if (!anode->is_local && current_func_name != vertex_name) {
if (anode->assign_expression != nullptr) {
use_fragment_varying = true;
} else {

5
servers/visual/shader_language.cpp
View file

@ -3495,6 +3495,7 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons
bool is_const = false;
int array_size = 0;
StringName struct_name;
bool is_local = false;
if (p_block && p_block->block_tag != SubClassTag::TAG_GLOBAL) {
int idx = 0;
@ -3547,6 +3548,8 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons
_set_error("Can't use function as identifier: " + String(identifier));
return nullptr;
}
is_local = ident_type == IDENTIFIER_LOCAL_VAR || ident_type == IDENTIFIER_FUNCTION_ARGUMENT;
}
Node *index_expression = nullptr;
@ -3623,6 +3626,7 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons
arrname->call_expression = call_expression;
arrname->assign_expression = assign_expression;
arrname->is_const = is_const;
arrname->is_local = is_local;
expr = arrname;
} else {
@ -3631,6 +3635,7 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons
varname->datatype_cache = data_type;
varname->is_const = is_const;
varname->struct_name = struct_name;
varname->is_local = is_local;
expr = varname;
}
}

8
servers/visual/shader_language.h
View file

@ -357,11 +357,13 @@ public:
virtual DataType get_datatype() const { return datatype_cache; }
virtual String get_datatype_name() const { return String(struct_name); }
bool is_const;
bool is_local;
VariableNode() :
Node(TYPE_VARIABLE),
datatype_cache(TYPE_VOID),
is_const(false) {}
is_const(false),
is_local(false) {}
};
struct VariableDeclarationNode : public Node {
@ -393,6 +395,7 @@ public:
Node *call_expression;
Node *assign_expression;
bool is_const;
bool is_local;
virtual DataType get_datatype() const { return datatype_cache; }
virtual String get_datatype_name() const { return String(struct_name); }
@ -403,7 +406,8 @@ public:
index_expression(nullptr),
call_expression(nullptr),
assign_expression(nullptr),
is_const(false) {}
is_const(false),
is_local(false) {}
};
struct ArrayConstructNode : public Node {