From: Giovanni Mascellani gmascellani@codeweavers.com
--- include/vkd3d_shader.h | 19 ++++++++++++++++--- libs/vkd3d-shader/dxbc.c | 31 +++++++++++++++++-------------- 2 files changed, 33 insertions(+), 17 deletions(-)
diff --git a/include/vkd3d_shader.h b/include/vkd3d_shader.h index 9e663919c..04640e6c2 100644 --- a/include/vkd3d_shader.h +++ b/include/vkd3d_shader.h @@ -212,6 +212,20 @@ enum vkd3d_shader_compile_option_feature_flags VKD3D_FORCE_32_BIT_ENUM(VKD3D_SHADER_COMPILE_OPTION_FEATURE_FLAGS), };
+/** + * Flags for vkd3d_shader_parse_dxbc(). + * + * \since 1.12 + */ +enum vkd3d_shader_parse_dxbc_flags +{ + /** Ignore the checksum and continue parsing even if it is + * incorrect. */ + VKD3D_SHADER_PARSE_DXBC_IGNORE_CHECKSUM = 0x00000001, + + VKD3D_FORCE_32_BIT_ENUM(VKD3D_SHADER_PARSE_DXBC_FLAGS), +}; + enum vkd3d_shader_compile_option_name { /** @@ -2377,9 +2391,8 @@ VKD3D_SHADER_API void vkd3d_shader_free_dxbc(struct vkd3d_shader_dxbc_desc *dxbc * * \param dxbc A vkd3d_shader_code structure containing the DXBC blob to parse. * - * \param flags A set of flags modifying the behaviour of the function. No - * flags are defined for this version of vkd3d-shader, and this parameter - * should be set to 0. + * \param flags A combination of zero or more elements of enum + * vkd3d_shader_parse_dxbc_flags. * * \param desc A vkd3d_shader_dxbc_desc structure describing the contents of * the DXBC blob. Its vkd3d_shader_dxbc_section_desc structures will contain diff --git a/libs/vkd3d-shader/dxbc.c b/libs/vkd3d-shader/dxbc.c index 37ebc73c0..4a8a7b138 100644 --- a/libs/vkd3d-shader/dxbc.c +++ b/libs/vkd3d-shader/dxbc.c @@ -150,7 +150,7 @@ static const char *shader_get_string(const char *data, size_t data_size, size_t }
static int parse_dxbc(const struct vkd3d_shader_code *dxbc, struct vkd3d_shader_message_context *message_context, - const char *source_name, struct vkd3d_shader_dxbc_desc *desc) + const char *source_name, uint32_t flags, struct vkd3d_shader_dxbc_desc *desc) { const struct vkd3d_shader_location location = {.source_name = source_name}; struct vkd3d_shader_dxbc_section_desc *sections, *section; @@ -186,17 +186,20 @@ static int parse_dxbc(const struct vkd3d_shader_code *dxbc, struct vkd3d_shader_ checksum[1] = read_u32(&ptr); checksum[2] = read_u32(&ptr); checksum[3] = read_u32(&ptr); - vkd3d_compute_dxbc_checksum(data, data_size, calculated_checksum); - if (memcmp(checksum, calculated_checksum, sizeof(checksum))) - { - WARN("Checksum {0x%08x, 0x%08x, 0x%08x, 0x%08x} does not match " - "calculated checksum {0x%08x, 0x%08x, 0x%08x, 0x%08x}.\n", - checksum[0], checksum[1], checksum[2], checksum[3], - calculated_checksum[0], calculated_checksum[1], - calculated_checksum[2], calculated_checksum[3]); - vkd3d_shader_error(message_context, &location, VKD3D_SHADER_ERROR_DXBC_INVALID_CHECKSUM, - "Invalid DXBC checksum."); - return VKD3D_ERROR_INVALID_ARGUMENT; + if (!(flags & VKD3D_SHADER_PARSE_DXBC_IGNORE_CHECKSUM)) + { + vkd3d_compute_dxbc_checksum(data, data_size, calculated_checksum); + if (memcmp(checksum, calculated_checksum, sizeof(checksum))) + { + WARN("Checksum {0x%08x, 0x%08x, 0x%08x, 0x%08x} does not match " + "calculated checksum {0x%08x, 0x%08x, 0x%08x, 0x%08x}.\n", + checksum[0], checksum[1], checksum[2], checksum[3], + calculated_checksum[0], calculated_checksum[1], + calculated_checksum[2], calculated_checksum[3]); + vkd3d_shader_error(message_context, &location, VKD3D_SHADER_ERROR_DXBC_INVALID_CHECKSUM, + "Invalid DXBC checksum."); + return VKD3D_ERROR_INVALID_ARGUMENT; + } }
version = read_u32(&ptr); @@ -287,7 +290,7 @@ static int for_each_dxbc_section(const struct vkd3d_shader_code *dxbc, unsigned int i; int ret;
- if ((ret = parse_dxbc(dxbc, message_context, source_name, &desc)) < 0) + if ((ret = parse_dxbc(dxbc, message_context, source_name, 0, &desc)) < 0) return ret;
for (i = 0; i < desc.section_count; ++i) @@ -313,7 +316,7 @@ int vkd3d_shader_parse_dxbc(const struct vkd3d_shader_code *dxbc, *messages = NULL; vkd3d_shader_message_context_init(&message_context, VKD3D_SHADER_LOG_INFO);
- ret = parse_dxbc(dxbc, &message_context, NULL, desc); + ret = parse_dxbc(dxbc, &message_context, NULL, flags, desc);
vkd3d_shader_message_context_trace_messages(&message_context); if (!vkd3d_shader_message_context_copy_messages(&message_context, messages) && ret >= 0)