Hans Goudey
176d7bcc2e
After this commit, all mesh data extraction and drawing code is in C++, including headers, making it possible to use improved types for future performance improvements and simplifications. The only non-trivial changes are in `draw_cache_impl_mesh.cc`, where use of certain features and macros in C necessitated larger changes. Differential Revision: https://developer.blender.org/D15088
113 lines
3.1 KiB
C++
113 lines
3.1 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2022 Blender Foundation. All rights reserved. */
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#include "draw_attributes.h"
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/* Return true if the given DRW_AttributeRequest is already in the requests. */
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static bool drw_attributes_has_request(const DRW_Attributes *requests, DRW_AttributeRequest req)
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{
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for (int i = 0; i < requests->num_requests; i++) {
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const DRW_AttributeRequest src_req = requests->requests[i];
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if (src_req.domain != req.domain) {
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continue;
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}
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if (src_req.layer_index != req.layer_index) {
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continue;
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}
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if (src_req.cd_type != req.cd_type) {
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continue;
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}
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return true;
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}
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return false;
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}
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static void drw_attributes_merge_requests(const DRW_Attributes *src_requests,
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DRW_Attributes *dst_requests)
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{
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for (int i = 0; i < src_requests->num_requests; i++) {
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if (dst_requests->num_requests == GPU_MAX_ATTR) {
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return;
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}
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if (drw_attributes_has_request(dst_requests, src_requests->requests[i])) {
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continue;
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}
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dst_requests->requests[dst_requests->num_requests] = src_requests->requests[i];
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dst_requests->num_requests += 1;
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}
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}
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void drw_attributes_clear(DRW_Attributes *attributes)
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{
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memset(attributes, 0, sizeof(DRW_Attributes));
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}
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void drw_attributes_merge(DRW_Attributes *dst,
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const DRW_Attributes *src,
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ThreadMutex *render_mutex)
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{
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BLI_mutex_lock(render_mutex);
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drw_attributes_merge_requests(src, dst);
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BLI_mutex_unlock(render_mutex);
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}
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bool drw_attributes_overlap(const DRW_Attributes *a, const DRW_Attributes *b)
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{
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for (int i = 0; i < b->num_requests; i++) {
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if (!drw_attributes_has_request(a, b->requests[i])) {
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return false;
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}
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}
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return true;
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}
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DRW_AttributeRequest *drw_attributes_add_request(DRW_Attributes *attrs,
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eCustomDataType type,
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int layer,
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eAttrDomain domain)
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{
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if (attrs->num_requests >= GPU_MAX_ATTR) {
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return nullptr;
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}
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DRW_AttributeRequest *req = &attrs->requests[attrs->num_requests];
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req->cd_type = type;
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req->layer_index = layer;
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req->domain = domain;
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attrs->num_requests += 1;
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return req;
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}
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bool drw_custom_data_match_attribute(const CustomData *custom_data,
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const char *name,
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int *r_layer_index,
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eCustomDataType *r_type)
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{
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const eCustomDataType possible_attribute_types[7] = {
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CD_PROP_BOOL,
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CD_PROP_INT8,
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CD_PROP_INT32,
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CD_PROP_FLOAT,
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CD_PROP_FLOAT2,
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CD_PROP_FLOAT3,
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CD_PROP_COLOR,
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};
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for (int i = 0; i < ARRAY_SIZE(possible_attribute_types); i++) {
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const eCustomDataType attr_type = possible_attribute_types[i];
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int layer_index = CustomData_get_named_layer(custom_data, attr_type, name);
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if (layer_index == -1) {
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continue;
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}
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*r_layer_index = layer_index;
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*r_type = attr_type;
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return true;
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}
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return false;
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}
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