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vkd3d-shader/dxil: Do not access null code blocks on failure.

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Conor McCarthy 2023-09-14 19:00:00 +10:00 committed by Alexandre Julliard
parent 56cd609308
commit b30b95e824
Notes: Alexandre Julliard 2023-09-26 22:48:47 +02:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/345
1 changed files with 4 additions and 3 deletions
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7
libs/vkd3d-shader/dxil.c
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@ -2522,11 +2522,11 @@ static enum vkd3d_result sm6_parser_function_init(struct sm6_parser *sm6, const
struct sm6_function *function)
{
struct vkd3d_shader_instruction *ins;
size_t i, block_idx, block_count;
const struct dxil_record *record;
bool ret_found, is_terminator;
struct sm6_block *code_block;
struct sm6_value *dst;
size_t i, block_idx;
if (sm6->function_count)
{
@ -2552,12 +2552,12 @@ static enum vkd3d_result sm6_parser_function_init(struct sm6_parser *sm6, const
return VKD3D_ERROR_INVALID_SHADER;
}
if (!(function->block_count = block->records[0]->operands[0]))
if (!(block_count = block->records[0]->operands[0]))
{
WARN("Function contains no blocks.\n");
return VKD3D_ERROR_INVALID_SHADER;
}
if (function->block_count > 1)
if (block_count > 1)
{
FIXME("Branched shaders are not supported yet.\n");
return VKD3D_ERROR_INVALID_SHADER;
@ -2568,6 +2568,7 @@ static enum vkd3d_result sm6_parser_function_init(struct sm6_parser *sm6, const
ERR("Failed to allocate code block.\n");
return VKD3D_ERROR_OUT_OF_MEMORY;
}
function->block_count = block_count;
code_block = function->blocks[0];
sm6->cur_max_value = function->value_count;