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vkd3d-shader/hlsl: Parse the max() intrinsic.

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Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Giovanni Mascellani <gmascellani@codeweavers.com>
Signed-off-by: Matteo Bruni <mbruni@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura
2021-09-01 17:20:54 -05:00
committed by Alexandre Julliard
parent f86e4d6b92
commit 99674ab60f
4 changed files with 94 additions and 0 deletions
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67
libs/vkd3d-shader/hlsl.y
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@@ -1555,10 +1555,38 @@ static const struct hlsl_ir_function_decl *find_function_call(struct hlsl_ctx *c
return args.decl;
}
static bool intrinsic_max(struct hlsl_ctx *ctx,
const struct parse_initializer *params, struct vkd3d_shader_location loc)
{
struct hlsl_ir_node *args[3] = {params->args[0], params->args[1]};
return !!add_expr(ctx, params->instrs, HLSL_OP2_MAX, args, &loc);
}
static const struct intrinsic_function
{
const char *name;
int param_count;
bool check_numeric;
bool (*handler)(struct hlsl_ctx *ctx, const struct parse_initializer *params, struct vkd3d_shader_location loc);
}
intrinsic_functions[] =
{
{"max", 2, true, intrinsic_max},
};
static int intrinsic_function_name_compare(const void *a, const void *b)
{
const struct intrinsic_function *func = b;
return strcmp(a, func->name);
}
static struct list *add_call(struct hlsl_ctx *ctx, const char *name,
struct parse_initializer *params, struct vkd3d_shader_location loc)
{
const struct hlsl_ir_function_decl *decl;
struct intrinsic_function *intrinsic;
if ((decl = find_function_call(ctx, name, params)))
{
@@ -1566,6 +1594,45 @@ static struct list *add_call(struct hlsl_ctx *ctx, const char *name,
free_parse_initializer(params);
return NULL;
}
else if ((intrinsic = bsearch(name, intrinsic_functions, ARRAY_SIZE(intrinsic_functions),
sizeof(*intrinsic_functions), intrinsic_function_name_compare)))
{
if (intrinsic->param_count >= 0 && params->args_count != intrinsic->param_count)
{
hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_WRONG_PARAMETER_COUNT,
"Wrong number of arguments to function '%s': expected %u, but got %u.\n",
name, intrinsic->param_count, params->args_count);
free_parse_initializer(params);
return NULL;
}
if (intrinsic->check_numeric)
{
unsigned int i;
for (i = 0; i < params->args_count; ++i)
{
if (params->args[i]->data_type->type > HLSL_CLASS_LAST_NUMERIC)
{
struct vkd3d_string_buffer *string;
if ((string = hlsl_type_to_string(ctx, params->args[i]->data_type)))
hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE,
"Wrong type for argument %u of '%s': expected a numeric type, but got '%s'.\n",
i + 1, name, string->buffer);
hlsl_release_string_buffer(ctx, string);
free_parse_initializer(params);
return NULL;
}
}
}
if (!intrinsic->handler(ctx, params, loc))
{
free_parse_initializer(params);
return NULL;
}
}
else
{
hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_NOT_DEFINED, "Function \"%s\" is not defined.", name);