Implement/match LegoPartPresenter::Read (#642)

* WIP * Match * Remove TODO * Fix
2025-10-23 08:24:16 +00:00 · 2024-03-09 12:27:53 -05:00
parent 9e2f37e7ca
commit 9f875d01e5
8 changed files with 311 additions and 8 deletions
--- a/LEGO1/lego/legoomni/src/video/legopartpresenter.cpp
+++ b/LEGO1/lego/legoomni/src/video/legopartpresenter.cpp
@@ -2,6 +2,13 @@

 #include "legoomni.h"
 #include "legovideomanager.h"
+#include "misc/legocontainer.h"
+#include "misc/legostorage.h"
+#include "misc/legotexture.h"
+
+DECOMP_SIZE_ASSERT(LegoLODList, 0x18)
+DECOMP_SIZE_ASSERT(LegoNamedPart, 0x14)
+DECOMP_SIZE_ASSERT(LegoNamedPartList, 0x18)

 // GLOBAL: LEGO1 0x100f7aa0
 MxS32 g_partPresenterConfig1 = 1;
@@ -35,11 +42,172 @@ void LegoPartPresenter::Destroy(MxBool p_fromDestructor)
 	// TODO
 }

-// STUB: LEGO1 0x1007ca30
+// FUNCTION: LEGO1 0x1007ca30
 MxResult LegoPartPresenter::Read(MxDSChunk& p_chunk)
 {
-	// TODO
-	return SUCCESS;
+	MxResult result = FAILURE;
+	LegoU32 numROIs, numLODs;
+	LegoMemory storage(p_chunk.GetData());
+	LegoU32 textureInfoOffset, i, j, numTextures;
+	LegoU32 roiNameLength, roiInfoOffset, surplusLODs;
+	LegoLODList* lods;
+	LegoNamedPart* namedPart;
+	LegoChar* roiName = NULL;
+	LegoChar* textureName = NULL;
+	LegoTexture* texture = NULL;
+	LegoTextureInfo* textureInfo = NULL;
+	LegoS32 hardwareMode = VideoManager()->GetDirect3D()->AssignedDevice()->GetHardwareMode();
+
+	if (storage.Read(&textureInfoOffset, sizeof(textureInfoOffset)) != SUCCESS) {
+		goto done;
+	}
+	if (storage.SetPosition(textureInfoOffset) != SUCCESS) {
+		goto done;
+	}
+	if (storage.Read(&numTextures, sizeof(numTextures)) != SUCCESS) {
+		goto done;
+	}
+
+	for (i = 0; i < numTextures; i++) {
+		LegoU32 textureNameLength;
+
+		storage.Read(&textureNameLength, sizeof(textureNameLength));
+		textureName = new LegoChar[textureNameLength + 1];
+		storage.Read(textureName, textureNameLength);
+		textureName[textureNameLength] = '\0';
+
+		strlwr(textureName);
+
+		if (textureName[0] == '^') {
+			strcpy(textureName, textureName + 1);
+
+			if (g_partPresenterConfig1) {
+				texture = new LegoTexture();
+				if (texture->Read(&storage, hardwareMode) != SUCCESS) {
+					goto done;
+				}
+
+				LegoTexture* discardTexture = new LegoTexture();
+				if (discardTexture->Read(&storage, FALSE) != SUCCESS) {
+					goto done;
+				}
+				delete discardTexture;
+			}
+			else {
+				LegoTexture* discardTexture = new LegoTexture();
+				if (discardTexture->Read(&storage, FALSE) != SUCCESS) {
+					goto done;
+				}
+				delete discardTexture;
+
+				texture = new LegoTexture();
+				if (texture->Read(&storage, hardwareMode) != SUCCESS) {
+					goto done;
+				}
+			}
+		}
+		else {
+			texture = new LegoTexture();
+			if (texture->Read(&storage, hardwareMode) != SUCCESS) {
+				goto done;
+			}
+		}
+
+		if (TextureContainer()->Get(textureName) == NULL) {
+			textureInfo = LegoTextureInfo::Create(textureName, texture);
+
+			if (textureInfo == NULL) {
+				goto done;
+			}
+
+			TextureContainer()->Add(textureName, textureInfo);
+		}
+
+		delete[] textureName;
+		textureName = NULL;
+		delete texture;
+		texture = NULL;
+	}
+
+	if (storage.SetPosition(4) != SUCCESS) {
+		goto done;
+	}
+
+	m_parts = new LegoNamedPartList();
+
+	if (storage.Read(&numROIs, sizeof(numROIs)) != SUCCESS) {
+		goto done;
+	}
+
+	for (i = 0; i < numROIs; i++) {
+
+		if (storage.Read(&roiNameLength, sizeof(roiNameLength)) != SUCCESS) {
+			goto done;
+		}
+
+		roiName = new LegoChar[roiNameLength + 1];
+		if (storage.Read(roiName, roiNameLength) != SUCCESS) {
+			goto done;
+		}
+
+		roiName[roiNameLength] = '\0';
+		strlwr(roiName);
+
+		if (storage.Read(&numLODs, sizeof(numLODs)) != SUCCESS) {
+			goto done;
+		}
+		if (storage.Read(&roiInfoOffset, sizeof(roiInfoOffset)) != SUCCESS) {
+			goto done;
+		}
+
+		if (numLODs > g_partPresenterConfig2) {
+			surplusLODs = numLODs - g_partPresenterConfig2;
+			numLODs = g_partPresenterConfig2;
+		}
+		else {
+			surplusLODs = 0;
+		}
+
+		lods = new LegoLODList();
+
+		for (j = 0; j < numLODs; j++) {
+			LegoLOD* lod = new LegoLOD(VideoManager()->GetRenderer());
+
+			if (lod->Read(VideoManager()->GetRenderer(), TextureContainer(), &storage) != SUCCESS) {
+				goto done;
+			}
+
+			if (j == 0) {
+				if (surplusLODs != 0 && lod->GetUnknown0x08Test8()) {
+					numLODs++;
+					surplusLODs--;
+				}
+			}
+
+			lods->Append(lod);
+		}
+
+		storage.SetPosition(roiInfoOffset);
+
+		namedPart = new LegoNamedPart(roiName, lods);
+		m_parts->Append(namedPart);
+
+		delete[] roiName;
+		roiName = NULL;
+	}
+
+	result = SUCCESS;
+
+done:
+	if (roiName != NULL) {
+		delete[] roiName;
+	}
+	if (result != SUCCESS && m_parts != NULL) {
+		delete m_parts;
+		m_parts = NULL;
+	}
+
+	return result;
 }

 // STUB: LEGO1 0x1007deb0