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vkd3d-shader/ir: Validate the index of a TEMP register.

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This commit is contained in:
Giovanni Mascellani 2023-10-24 19:55:37 -05:00 committed by Alexandre Julliard
parent 4140b87499
commit af72466db1
Notes: Alexandre Julliard 2023-11-02 22:49:42 +01:00 
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/432
2 changed files with 31 additions and 0 deletions
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28
libs/vkd3d-shader/ir.c
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@ -1473,6 +1473,7 @@ struct validation_context
{
struct vkd3d_shader_parser *parser;
size_t instruction_idx;
bool dcl_temps_found;
};
static void VKD3D_PRINTF_FUNC(3, 4) validator_error(struct validation_context *ctx,
@ -1514,6 +1515,25 @@ static void vsir_validate_register(struct validation_context *ctx,
if (reg->idx_count > ARRAY_SIZE(reg->idx))
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_INDEX_COUNT, "Invalid register index count %u.",
reg->idx_count);
switch (reg->type)
{
case VKD3DSPR_TEMP:
if (reg->idx_count != 1)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_INDEX_COUNT, "Invalid index count %u for a TEMP register.",
reg->idx_count);
if (reg->idx_count >= 1 && reg->idx[0].rel_addr)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_INDEX, "Non-NULL relative address for a TEMP register.");
if (reg->idx_count >= 1 && reg->idx[0].offset >= ctx->parser->shader_desc.temp_count)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_INDEX, "TEMP register index %u exceeds the declared count %u.",
reg->idx[0].offset, ctx->parser->shader_desc.temp_count);
break;
default:
break;
}
}
static void vsir_validate_dst_param(struct validation_context *ctx,
@ -1602,6 +1622,14 @@ static void vsir_validate_instruction(struct validation_context *ctx)
case VKD3DSIH_DCL_TEMPS:
vsir_validate_dst_count(ctx, instruction, 0);
vsir_validate_src_count(ctx, instruction, 0);
/* TODO Check that each phase in a hull shader has at most
* one occurrence. */
if (ctx->dcl_temps_found && ctx->parser->shader_version.type != VKD3D_SHADER_TYPE_HULL)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_DUPLICATE_DCL_TEMPS, "Duplicate DCL_TEMPS instruction.");
ctx->dcl_temps_found = true;
if (instruction->declaration.count != ctx->parser->shader_desc.temp_count)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_DCL_TEMPS, "Invalid DCL_TEMPS count %u, expected %u.",
instruction->declaration.count, ctx->parser->shader_desc.temp_count);
break;
default:

3
libs/vkd3d-shader/vkd3d_shader_private.h
View File

@ -206,6 +206,9 @@ enum vkd3d_shader_error
VKD3D_SHADER_ERROR_VSIR_INVALID_INDEX_COUNT = 9010,
VKD3D_SHADER_ERROR_VSIR_INVALID_DEST_COUNT = 9011,
VKD3D_SHADER_ERROR_VSIR_INVALID_SOURCE_COUNT = 9012,
VKD3D_SHADER_ERROR_VSIR_DUPLICATE_DCL_TEMPS = 9013,
VKD3D_SHADER_ERROR_VSIR_INVALID_DCL_TEMPS = 9014,
VKD3D_SHADER_ERROR_VSIR_INVALID_INDEX = 9015,
};
enum vkd3d_shader_opcode