From: Francisco Casas fcasas@codeweavers.com
This is just a wrapper of vkd3d_calloc(), that has the advantage of checking for multiplication overflow. --- libs/vkd3d-shader/hlsl.c | 6 +++--- libs/vkd3d-shader/hlsl.h | 9 +++++++++ 2 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/libs/vkd3d-shader/hlsl.c b/libs/vkd3d-shader/hlsl.c index c2911a48..253437a7 100644 --- a/libs/vkd3d-shader/hlsl.c +++ b/libs/vkd3d-shader/hlsl.c @@ -443,7 +443,7 @@ static bool init_deref(struct hlsl_ctx *ctx, struct hlsl_deref *deref, struct hl return true; }
- if (!(deref->path = hlsl_alloc(ctx, sizeof(*deref->path) * deref->path_len))) + if (!(deref->path = hlsl_calloc(ctx, deref->path_len, sizeof(*deref->path)))) { deref->var = NULL; deref->path_len = 0; @@ -882,7 +882,7 @@ struct hlsl_type *hlsl_type_clone(struct hlsl_ctx *ctx, struct hlsl_type *old,
type->e.record.field_count = field_count;
- if (!(type->e.record.fields = hlsl_alloc(ctx, field_count * sizeof(*type->e.record.fields)))) + if (!(type->e.record.fields = hlsl_calloc(ctx, field_count, sizeof(*type->e.record.fields)))) { vkd3d_free((void *)type->name); vkd3d_free(type); @@ -974,7 +974,7 @@ struct hlsl_ir_var *hlsl_new_var(struct hlsl_ctx *ctx, const char *name, struct if (obj_count == 0) continue;
- if (!(var->objects_usage[k] = hlsl_alloc(ctx, sizeof(*var->objects_usage[0]) * obj_count))) + if (!(var->objects_usage[k] = hlsl_calloc(ctx, obj_count, sizeof(*var->objects_usage[0])))) { for (i = 0; i < k; ++i) vkd3d_free(var->objects_usage[i]); diff --git a/libs/vkd3d-shader/hlsl.h b/libs/vkd3d-shader/hlsl.h index 2a3b1a58..a3453538 100644 --- a/libs/vkd3d-shader/hlsl.h +++ b/libs/vkd3d-shader/hlsl.h @@ -939,6 +939,15 @@ static inline void *hlsl_alloc(struct hlsl_ctx *ctx, size_t size) return ptr; }
+static inline void *hlsl_calloc(struct hlsl_ctx *ctx, size_t count, size_t size) +{ + void *ptr = vkd3d_calloc(count, size); + + if (!ptr) + ctx->result = VKD3D_ERROR_OUT_OF_MEMORY; + return ptr; +} + static inline void *hlsl_realloc(struct hlsl_ctx *ctx, void *ptr, size_t size) { void *ret = vkd3d_realloc(ptr, size);