mirror of https://github.com/sm64pc/sm64pc.git
995 lines
42 KiB
C
995 lines
42 KiB
C
#include <ultra64.h>
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#include "sm64.h"
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#include "main.h"
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#include "display.h"
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#include "print.h"
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#include "engine/math_util.h"
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#include "area.h"
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#include "shadow.h"
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#include "memory.h"
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#include "game.h"
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#include "rendering_graph_node.h"
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/** This file contains the code that processes the scene graph for rendering.
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* The scene graph is responsible for drawing everything except the HUD / text boxes.
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* First the root of the scene graph is processed when geo_process_root
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* is called from level_script.c. The rest of the tree is traversed recursively
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* using the function geo_process_node_and_siblings, which switches over all
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* geo node types and calls a specialized function accordingly.
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* The types are defined in engine/graph_node.h
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*
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* The scene graph typically looks like:
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* - Root (viewport)
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* - Master list
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* - Ortho projection
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* - Background (skybox)
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* - Master list
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* - Perspective
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* - Camera
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* - <area-specific display lists>
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* - Object parent
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* - <group with 240 object nodes>
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* - Master list
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* - Script node (Cannon overlay)
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*
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*/
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s16 gMatStackIndex;
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Mat4 gMatStack[32];
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Mtx *gMatStackFixed[32];
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/** Animation nodes have state in global variables, so this struct captures
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* the animation state so a 'context switch' can be made when rendering the
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* held object.
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*/
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struct GeoAnimState {
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/*0x00*/ u8 type;
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/*0x01*/ u8 enabled;
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/*0x02*/ s16 frame;
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/*0x04*/ f32 translationMultiplier;
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/*0x08*/ u16 *attribute;
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/*0x0C*/ s16 *data;
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};
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// For some reason, this is a GeoAnimState struct, but the current state consists
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// of separate global variables. It won't match EU otherwise.
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struct GeoAnimState gGeoTempState;
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u8 gCurAnimType;
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u8 gCurAnimEnabled;
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s16 gCurrAnimFrame;
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f32 gCurAnimTranslationMultiplier;
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u16 *gCurrAnimAttribute;
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s16 *gCurAnimData;
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struct AllocOnlyPool *gDisplayListHeap;
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struct RenderModeContainer {
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u32 modes[8];
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};
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/* Rendermode settings for cycles 1 and 2 for layers 0-3. */
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struct RenderModeContainer renderModeTable_1Cycle[2] = { { {
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G_RM_OPA_SURF,
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G_RM_AA_OPA_SURF,
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G_RM_AA_OPA_SURF,
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G_RM_AA_OPA_SURF,
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G_RM_AA_TEX_EDGE,
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G_RM_AA_XLU_SURF,
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G_RM_AA_XLU_SURF,
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G_RM_AA_XLU_SURF,
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} },
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{ {
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/* z-buffered */
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G_RM_ZB_OPA_SURF,
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G_RM_AA_ZB_OPA_SURF,
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G_RM_AA_ZB_OPA_DECAL,
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G_RM_AA_ZB_OPA_INTER,
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G_RM_AA_ZB_TEX_EDGE,
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G_RM_AA_ZB_XLU_SURF,
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G_RM_AA_ZB_XLU_DECAL,
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G_RM_AA_ZB_XLU_INTER,
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} } };
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/* Rendermode settings for cycles 1 and 2 for layers 4-7. */
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struct RenderModeContainer renderModeTable_2Cycle[2] = { { {
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G_RM_OPA_SURF2,
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G_RM_AA_OPA_SURF2,
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G_RM_AA_OPA_SURF2,
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G_RM_AA_OPA_SURF2,
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G_RM_AA_TEX_EDGE2,
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G_RM_AA_XLU_SURF2,
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G_RM_AA_XLU_SURF2,
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G_RM_AA_XLU_SURF2,
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} },
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{ {
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/* z-buffered */
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G_RM_ZB_OPA_SURF2,
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G_RM_AA_ZB_OPA_SURF2,
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G_RM_AA_ZB_OPA_DECAL2,
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G_RM_AA_ZB_OPA_INTER2,
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G_RM_AA_ZB_TEX_EDGE2,
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G_RM_AA_ZB_XLU_SURF2,
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G_RM_AA_ZB_XLU_DECAL2,
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G_RM_AA_ZB_XLU_INTER2,
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} } };
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struct GraphNodeRoot *gCurGraphNodeRoot = NULL;
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struct GraphNodeMasterList *gCurGraphNodeMasterList = NULL;
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struct GraphNodePerspective *gCurGraphNodeCamFrustum = NULL;
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struct GraphNodeCamera *gCurGraphNodeCamera = NULL;
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struct GraphNodeObject *gCurGraphNodeObject = NULL;
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struct GraphNodeHeldObject *gCurGraphNodeHeldObject = NULL;
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u16 gAreaUpdateCounter = 0;
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#ifdef F3DEX_GBI_2
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LookAt lookAt;
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#endif
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/** Process a master list node.
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*
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*/
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static void geo_process_master_list_sub(struct GraphNodeMasterList *node) {
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struct DisplayListNode *currList;
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s32 i;
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s32 enableZBuffer = (node->node.flags & GRAPH_RENDER_Z_BUFFER) != 0;
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struct RenderModeContainer *modeList = &renderModeTable_1Cycle[enableZBuffer];
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struct RenderModeContainer *mode2List = &renderModeTable_2Cycle[enableZBuffer];
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/** @bug This is where the LookAt values should be calculated but aren't.
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* As a result, environment mapping is broken on Fast3DEX2 without the
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* changes below.
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*/
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#ifdef F3DEX_GBI_2
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Mtx lMtx;
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guLookAtReflect(&lMtx, &lookAt, 0, 0, 0, /* eye */ 0, 0, 1, /* at */ 1, 0, 0 /* up */);
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#endif
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if (enableZBuffer != 0) {
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gDPPipeSync(gDisplayListHead++);
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gSPSetGeometryMode(gDisplayListHead++, G_ZBUFFER);
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}
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for (i = 0; i < GFX_NUM_MASTER_LISTS; i++) {
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if ((currList = node->listHeads[i]) != NULL) {
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gDPSetRenderMode(gDisplayListHead++, modeList->modes[i], mode2List->modes[i]);
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while (currList != NULL) {
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gSPMatrix(gDisplayListHead++, VIRTUAL_TO_PHYSICAL(currList->transform),
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G_MTX_MODELVIEW | G_MTX_LOAD);
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gSPDisplayList(gDisplayListHead++, currList->displayList);
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currList = currList->next;
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}
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}
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}
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if (enableZBuffer != 0) {
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gDPPipeSync(gDisplayListHead++);
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gSPClearGeometryMode(gDisplayListHead++, G_ZBUFFER);
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}
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}
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/** Appends the display list to one of the master lists based on the layer
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* parameter. Look at the RenderModeContainer struct to see the corresponding
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* render modes of layers.
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*/
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static void geo_append_display_list(void *displayList, s16 layer) {
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#ifdef F3DEX_GBI_2
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gSPLookAt(gDisplayListHead++, &lookAt);
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#endif
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if (gCurGraphNodeMasterList != 0) {
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struct DisplayListNode *listNode =
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alloc_only_pool_alloc(gDisplayListHeap, sizeof(struct DisplayListNode));
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listNode->transform = gMatStackFixed[gMatStackIndex];
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listNode->displayList = displayList;
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listNode->next = 0;
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if (gCurGraphNodeMasterList->listHeads[layer] == 0)
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gCurGraphNodeMasterList->listHeads[layer] = listNode;
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else
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gCurGraphNodeMasterList->listTails[layer]->next = listNode;
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gCurGraphNodeMasterList->listTails[layer] = listNode;
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}
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}
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/** Process the master list node.
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*/
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static void geo_process_master_list(struct GraphNodeMasterList *node) {
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s32 i;
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UNUSED s32 sp1C;
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if (gCurGraphNodeMasterList == NULL && node->node.children != NULL) {
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gCurGraphNodeMasterList = node;
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for (i = 0; i < GFX_NUM_MASTER_LISTS; i++)
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node->listHeads[i] = NULL;
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geo_process_node_and_siblings(node->node.children);
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geo_process_master_list_sub(node);
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gCurGraphNodeMasterList = NULL;
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}
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}
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/** Process an orthographic projection node.
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*
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*/
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static void geo_process_ortho_projection(struct GraphNodeOrthoProjection *node) {
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if (node->node.children != NULL) {
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Mtx *mtx = alloc_display_list(sizeof(*mtx));
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f32 left = (gCurGraphNodeRoot->x - gCurGraphNodeRoot->width) / 2.0f * node->scale;
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f32 right = (gCurGraphNodeRoot->x + gCurGraphNodeRoot->width) / 2.0f * node->scale;
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f32 top = (gCurGraphNodeRoot->y - gCurGraphNodeRoot->height) / 2.0f * node->scale;
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f32 bottom = (gCurGraphNodeRoot->y + gCurGraphNodeRoot->height) / 2.0f * node->scale;
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guOrtho(mtx, left, right, bottom, top, -2.0f, 2.0f, 1.0f);
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gSPPerspNormalize(gDisplayListHead++, 0xFFFF);
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gSPMatrix(gDisplayListHead++, VIRTUAL_TO_PHYSICAL(mtx), G_MTX_PROJECTION | G_MTX_LOAD);
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geo_process_node_and_siblings(node->node.children);
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}
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}
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/** Process a perspective projection node.
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*
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*/
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static void geo_process_perspective(struct GraphNodePerspective *node) {
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if (node->fnNode.func != NULL)
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node->fnNode.func(GEO_CONTEXT_RENDER, &node->fnNode.node, gMatStack[gMatStackIndex]);
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if (node->fnNode.node.children != NULL) {
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u16 perspNorm;
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Mtx *mtx = alloc_display_list(sizeof(*mtx));
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#ifdef VERSION_EU
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f32 aspect = ((f32) gCurGraphNodeRoot->width / (f32) gCurGraphNodeRoot->height) * 1.1f;
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#else
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f32 aspect = (f32) gCurGraphNodeRoot->width / (f32) gCurGraphNodeRoot->height;
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#endif
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guPerspective(mtx, &perspNorm, node->fov, aspect, node->near, node->far, 1.0f);
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gSPPerspNormalize(gDisplayListHead++, perspNorm);
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gSPMatrix(gDisplayListHead++, VIRTUAL_TO_PHYSICAL(mtx), G_MTX_PROJECTION | G_MTX_LOAD);
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gCurGraphNodeCamFrustum = node;
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geo_process_node_and_siblings(node->fnNode.node.children);
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gCurGraphNodeCamFrustum = NULL;
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}
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}
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/** Process a level of detail node. From the current transformation matrix,
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* the perpendicular distance to the camera is extracted and the children
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* of this node are only processed if that distance is within the render
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* range of this node.
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*/
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static void geo_process_level_of_detail(struct GraphNodeLevelOfDetail *node) {
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// The fixed point Mtx type is defined as 16 longs, but it's actually 16
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// shorts for the integer parts followed by 16 shorts for the fraction parts
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s16 *mtx = (s16 *) gMatStackFixed[gMatStackIndex];
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s16 distanceFromCam = -mtx[14]; // z-component of the translation column
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if (node->minDistance <= distanceFromCam && distanceFromCam < node->maxDistance) {
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if (node->node.children != 0)
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geo_process_node_and_siblings(node->node.children);
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}
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}
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/** Process a switch case node. The node's selection function is called
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* if it is 0, and among the node's children, only the selected child is
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* processed next.
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*/
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static void geo_process_switch(struct GraphNodeSwitchCase *node) {
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struct GraphNode *selectedChild = node->fnNode.node.children;
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s32 i;
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if (node->fnNode.func != NULL)
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node->fnNode.func(GEO_CONTEXT_RENDER, &node->fnNode.node, gMatStack[gMatStackIndex]);
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for (i = 0; selectedChild != NULL && node->selectedCase > i; i++)
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selectedChild = selectedChild->next;
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if (selectedChild != NULL)
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geo_process_node_and_siblings(selectedChild);
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}
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/** Process a camera node.
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*
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*/
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static void geo_process_camera(struct GraphNodeCamera *node) {
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Mat4 cameraTransform;
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Mtx *rollMtx = alloc_display_list(sizeof(*rollMtx));
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Mtx *mtx = alloc_display_list(sizeof(*mtx));
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if (node->fnNode.func != NULL)
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node->fnNode.func(GEO_CONTEXT_RENDER, &node->fnNode.node, gMatStack[gMatStackIndex]);
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mtxf_rotate_xy(rollMtx, node->rollScreen);
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gSPMatrix(gDisplayListHead++, VIRTUAL_TO_PHYSICAL(rollMtx), G_MTX_PROJECTION);
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mtxf_lookat(cameraTransform, node->from, node->to, node->roll);
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mtxf_mul(gMatStack[gMatStackIndex + 1], cameraTransform, gMatStack[gMatStackIndex]);
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gMatStackIndex++;
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mtxf_to_mtx(mtx, gMatStack[gMatStackIndex]);
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gMatStackFixed[gMatStackIndex] = mtx;
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if (node->fnNode.node.children != 0) {
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gCurGraphNodeCamera = node;
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node->matrixPtr = gMatStack[gMatStackIndex];
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geo_process_node_and_siblings(node->fnNode.node.children);
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gCurGraphNodeCamera = NULL;
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}
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gMatStackIndex--;
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}
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/** Process a translation / rotation node. A transformation matrix based
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* on the node's translation and rotation is created and pushed on both
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* the float and fixed point matrix stacks.
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* For the rest it acts as a normal display list node.
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*/
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static void geo_process_translation_rotation(struct GraphNodeTranslationRotation *node) {
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Mat4 mtxf;
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Vec3f translation;
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Mtx *mtx = alloc_display_list(sizeof(*mtx));
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vec3s_to_vec3f(translation, node->translation);
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mtxf_rotate_zxy_and_translate(mtxf, translation, node->rotation);
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mtxf_mul(gMatStack[gMatStackIndex + 1], mtxf, gMatStack[gMatStackIndex]);
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gMatStackIndex++;
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mtxf_to_mtx(mtx, gMatStack[gMatStackIndex]);
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gMatStackFixed[gMatStackIndex] = mtx;
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if (node->displayList != NULL)
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geo_append_display_list(node->displayList, node->node.flags >> 8);
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if (node->node.children != NULL)
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geo_process_node_and_siblings(node->node.children);
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gMatStackIndex--;
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}
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/** Process a translation node. A transformation matrix based on the node's
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* translation is created and pushed on both the float and fixed point matrix stacks.
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* For the rest it acts as a normal display list node.
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*/
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static void geo_process_translation(struct GraphNodeTranslation *node) {
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Mat4 mtxf;
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Vec3f translation;
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Mtx *mtx = alloc_display_list(sizeof(*mtx));
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vec3s_to_vec3f(translation, node->translation);
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mtxf_rotate_zxy_and_translate(mtxf, translation, gVec3sZero);
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mtxf_mul(gMatStack[gMatStackIndex + 1], mtxf, gMatStack[gMatStackIndex]);
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gMatStackIndex++;
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mtxf_to_mtx(mtx, gMatStack[gMatStackIndex]);
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gMatStackFixed[gMatStackIndex] = mtx;
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if (node->displayList != NULL)
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geo_append_display_list(node->displayList, node->node.flags >> 8);
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if (node->node.children != NULL)
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geo_process_node_and_siblings(node->node.children);
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gMatStackIndex--;
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}
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/** Process a rotation node. A transformation matrix based on the node's
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* rotation is created and pushed on both the float and fixed point matrix stacks.
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* For the rest it acts as a normal display list node.
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*/
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static void geo_process_rotation(struct GraphNodeRotation *node) {
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Mat4 mtxf;
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Mtx *mtx = alloc_display_list(sizeof(*mtx));
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mtxf_rotate_zxy_and_translate(mtxf, gVec3fZero, node->rotation);
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mtxf_mul(gMatStack[gMatStackIndex + 1], mtxf, gMatStack[gMatStackIndex]);
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gMatStackIndex++;
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mtxf_to_mtx(mtx, gMatStack[gMatStackIndex]);
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gMatStackFixed[gMatStackIndex] = mtx;
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if (node->displayList != NULL)
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geo_append_display_list(node->displayList, node->node.flags >> 8);
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if (node->node.children != NULL)
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geo_process_node_and_siblings(node->node.children);
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gMatStackIndex--;
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}
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/** Process a scaling node. A transformation matrix based on the node's
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* scale is created and pushed on both the float and fixed point matrix stacks.
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* For the rest it acts as a normal display list node.
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*/
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static void geo_process_scale(struct GraphNodeScale *node) {
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UNUSED Mat4 transform;
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Vec3f scaleVec;
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Mtx *mtx = alloc_display_list(sizeof(*mtx));
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vec3f_set(scaleVec, node->scale, node->scale, node->scale);
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mtxf_scale_vec3f(gMatStack[gMatStackIndex + 1], gMatStack[gMatStackIndex], scaleVec);
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gMatStackIndex++;
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mtxf_to_mtx(mtx, gMatStack[gMatStackIndex]);
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gMatStackFixed[gMatStackIndex] = mtx;
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if (node->displayList != NULL)
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geo_append_display_list(node->displayList, node->node.flags >> 8);
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if (node->node.children != NULL)
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geo_process_node_and_siblings(node->node.children);
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gMatStackIndex--;
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}
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/** Process a billboard node. A transformation matrix is created that makes its
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* children face the camera, and it is pushed on the floating point and fixed
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* point matrix stacks.
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* For the rest it acts as a normal display list node.
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*/
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static void geo_process_billboard(struct GraphNodeBillboard *node) {
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Vec3f translation;
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Mtx *mtx = alloc_display_list(sizeof(*mtx));
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gMatStackIndex++;
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vec3s_to_vec3f(translation, node->translation);
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mtxf_billboard(gMatStack[gMatStackIndex], gMatStack[gMatStackIndex - 1], translation,
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gCurGraphNodeCamera->roll);
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if (gCurGraphNodeHeldObject != NULL)
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mtxf_scale_vec3f(gMatStack[gMatStackIndex], gMatStack[gMatStackIndex],
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gCurGraphNodeHeldObject->objNode->scale);
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else if (gCurGraphNodeObject != NULL)
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mtxf_scale_vec3f(gMatStack[gMatStackIndex], gMatStack[gMatStackIndex],
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gCurGraphNodeObject->scale);
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mtxf_to_mtx(mtx, gMatStack[gMatStackIndex]);
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gMatStackFixed[gMatStackIndex] = mtx;
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if (node->displayList != NULL)
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geo_append_display_list(node->displayList, node->node.flags >> 8);
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if (node->node.children != NULL)
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geo_process_node_and_siblings(node->node.children);
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gMatStackIndex--;
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}
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/** Process a display list node. It draws a display list without first pushing
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* a transformation on the stack, so all transformations are inherited from the
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* parent node. It processes its children if it has them.
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*/
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static void geo_process_display_list(struct GraphNodeDisplayList *node) {
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if (node->displayList != NULL)
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geo_append_display_list(node->displayList, node->node.flags >> 8);
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if (node->node.children != NULL)
|
|
geo_process_node_and_siblings(node->node.children);
|
|
}
|
|
|
|
/** Process a generated list. Instead of storing a pointer to a display list,
|
|
* the list is generated on the fly by a function.
|
|
*/
|
|
static void geo_process_generated_list(struct GraphNodeGenerated *node) {
|
|
if (node->fnNode.func != NULL) {
|
|
s32 list = node->fnNode.func(GEO_CONTEXT_RENDER, &node->fnNode.node,
|
|
(struct AllocOnlyPool *) gMatStack[gMatStackIndex]);
|
|
|
|
if (list != 0) {
|
|
geo_append_display_list((void *) VIRTUAL_TO_PHYSICAL(list), node->fnNode.node.flags >> 8);
|
|
}
|
|
}
|
|
if (node->fnNode.node.children != NULL)
|
|
geo_process_node_and_siblings(node->fnNode.node.children);
|
|
}
|
|
|
|
/** Process a background node. Tries to retrieve a background display list from
|
|
* the function of the node. If that function is null or returns null, a black
|
|
* rectangle is drawn instead.
|
|
*/
|
|
static void geo_process_background(struct GraphNodeBackground *node) {
|
|
s32 list = 0;
|
|
|
|
if (node->fnNode.func != NULL)
|
|
list = node->fnNode.func(GEO_CONTEXT_RENDER, &node->fnNode.node,
|
|
(struct AllocOnlyPool *) gMatStack[gMatStackIndex]);
|
|
if (list != 0) {
|
|
geo_append_display_list((void *) VIRTUAL_TO_PHYSICAL(list), node->fnNode.node.flags >> 8);
|
|
} else if (gCurGraphNodeMasterList != NULL) {
|
|
Gfx *gfxStart = alloc_display_list(sizeof(Gfx) * 7);
|
|
Gfx *gfx = gfxStart;
|
|
|
|
gDPPipeSync(gfx++);
|
|
gDPSetCycleType(gfx++, G_CYC_FILL);
|
|
gDPSetFillColor(gfx++, node->background);
|
|
gDPFillRectangle(gfx++, 0, BORDER_HEIGHT, 319, 239 - BORDER_HEIGHT);
|
|
gDPPipeSync(gfx++);
|
|
gDPSetCycleType(gfx++, G_CYC_1CYCLE);
|
|
gSPEndDisplayList(gfx++);
|
|
|
|
geo_append_display_list((void *) VIRTUAL_TO_PHYSICAL(gfxStart), 0);
|
|
}
|
|
if (node->fnNode.node.children != NULL)
|
|
geo_process_node_and_siblings(node->fnNode.node.children);
|
|
}
|
|
|
|
/** Render an animated part. The current animation state is not part of the node
|
|
* but set in global variables. If an animated part is skipped, everything afterwards desyncs.
|
|
*/
|
|
static void geo_process_animated_part(struct GraphNodeAnimatedPart *node) {
|
|
Mat4 matrix;
|
|
Vec3s rotation;
|
|
Vec3f translation;
|
|
Mtx *matrixPtr = alloc_display_list(sizeof(*matrixPtr));
|
|
|
|
vec3s_copy(rotation, gVec3sZero);
|
|
vec3f_set(translation, node->translation[0], node->translation[1], node->translation[2]);
|
|
if (gCurAnimType == ANIM_TYPE_TRANSLATION) {
|
|
translation[0] += gCurAnimData[retrieve_animation_index(gCurrAnimFrame, &gCurrAnimAttribute)]
|
|
* gCurAnimTranslationMultiplier;
|
|
translation[1] += gCurAnimData[retrieve_animation_index(gCurrAnimFrame, &gCurrAnimAttribute)]
|
|
* gCurAnimTranslationMultiplier;
|
|
translation[2] += gCurAnimData[retrieve_animation_index(gCurrAnimFrame, &gCurrAnimAttribute)]
|
|
* gCurAnimTranslationMultiplier;
|
|
gCurAnimType = ANIM_TYPE_ROTATION;
|
|
} else {
|
|
if (gCurAnimType == ANIM_TYPE_LATERAL_TRANSLATION) {
|
|
translation[0] +=
|
|
gCurAnimData[retrieve_animation_index(gCurrAnimFrame, &gCurrAnimAttribute)]
|
|
* gCurAnimTranslationMultiplier;
|
|
gCurrAnimAttribute += 2;
|
|
translation[2] +=
|
|
gCurAnimData[retrieve_animation_index(gCurrAnimFrame, &gCurrAnimAttribute)]
|
|
* gCurAnimTranslationMultiplier;
|
|
gCurAnimType = ANIM_TYPE_ROTATION;
|
|
} else {
|
|
if (gCurAnimType == ANIM_TYPE_VERTICAL_TRANSLATION) {
|
|
gCurrAnimAttribute += 2;
|
|
translation[1] +=
|
|
gCurAnimData[retrieve_animation_index(gCurrAnimFrame, &gCurrAnimAttribute)]
|
|
* gCurAnimTranslationMultiplier;
|
|
gCurrAnimAttribute += 2;
|
|
gCurAnimType = ANIM_TYPE_ROTATION;
|
|
} else if (gCurAnimType == ANIM_TYPE_NO_TRANSLATION) {
|
|
gCurrAnimAttribute += 6;
|
|
gCurAnimType = ANIM_TYPE_ROTATION;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (gCurAnimType == ANIM_TYPE_ROTATION) {
|
|
rotation[0] = gCurAnimData[retrieve_animation_index(gCurrAnimFrame, &gCurrAnimAttribute)];
|
|
rotation[1] = gCurAnimData[retrieve_animation_index(gCurrAnimFrame, &gCurrAnimAttribute)];
|
|
rotation[2] = gCurAnimData[retrieve_animation_index(gCurrAnimFrame, &gCurrAnimAttribute)];
|
|
}
|
|
mtxf_rotate_xyz_and_translate(matrix, translation, rotation);
|
|
mtxf_mul(gMatStack[gMatStackIndex + 1], matrix, gMatStack[gMatStackIndex]);
|
|
gMatStackIndex++;
|
|
mtxf_to_mtx(matrixPtr, gMatStack[gMatStackIndex]);
|
|
gMatStackFixed[gMatStackIndex] = matrixPtr;
|
|
if (node->displayList != NULL)
|
|
geo_append_display_list(node->displayList, node->node.flags >> 8);
|
|
if (node->node.children != NULL)
|
|
geo_process_node_and_siblings(node->node.children);
|
|
gMatStackIndex--;
|
|
}
|
|
|
|
/** Initialize the animation-related global variables for the currently drawn
|
|
* object's animation.
|
|
*/
|
|
void geo_set_animation_globals(struct GraphNodeObject_sub *node, s32 hasAnimation) {
|
|
struct Animation *anim = node->curAnim;
|
|
|
|
if (hasAnimation != 0)
|
|
node->animFrame = geo_update_animation_frame(node, &node->animFrameAccelAssist);
|
|
node->animTimer = gAreaUpdateCounter;
|
|
if (anim->flags & ANIM_FLAG_HOR_TRANS)
|
|
gCurAnimType = ANIM_TYPE_VERTICAL_TRANSLATION;
|
|
else if (anim->flags & ANIM_FLAG_VERT_TRANS)
|
|
gCurAnimType = ANIM_TYPE_LATERAL_TRANSLATION;
|
|
else if (anim->flags & ANIM_FLAG_6)
|
|
gCurAnimType = ANIM_TYPE_NO_TRANSLATION;
|
|
else
|
|
gCurAnimType = ANIM_TYPE_TRANSLATION;
|
|
|
|
gCurrAnimFrame = node->animFrame;
|
|
gCurAnimEnabled = (anim->flags & ANIM_FLAG_5) == 0;
|
|
gCurrAnimAttribute = segmented_to_virtual(anim->index);
|
|
gCurAnimData = segmented_to_virtual(anim->values);
|
|
|
|
if (anim->unk02 == 0)
|
|
gCurAnimTranslationMultiplier = 1.0f;
|
|
else
|
|
gCurAnimTranslationMultiplier = (f32) node->animYTrans / (f32) anim->unk02;
|
|
}
|
|
|
|
/** Process a shadow node. Renders a shadow under an object offset by the
|
|
* translation of the first animated component and rotated according to
|
|
* the floor below it.
|
|
*/
|
|
static void geo_process_shadow(struct GraphNodeShadow *node) {
|
|
Gfx *shadowList;
|
|
Mat4 mtxf;
|
|
Vec3f shadowPos;
|
|
Vec3f animOffset;
|
|
f32 objScale;
|
|
f32 shadowScale;
|
|
f32 sinAng;
|
|
f32 cosAng;
|
|
struct GraphNode *geo;
|
|
Mtx *mtx;
|
|
|
|
if (gCurGraphNodeCamera != NULL && gCurGraphNodeObject != NULL) {
|
|
if (gCurGraphNodeHeldObject != NULL) {
|
|
get_pos_from_transform_mtx(shadowPos, gMatStack[gMatStackIndex],
|
|
gCurGraphNodeCamera->matrixPtr);
|
|
shadowScale = node->shadowScale;
|
|
} else {
|
|
vec3f_copy(shadowPos, gCurGraphNodeObject->pos);
|
|
shadowScale = node->shadowScale * gCurGraphNodeObject->scale[0];
|
|
}
|
|
|
|
objScale = 1.0f;
|
|
if (gCurAnimEnabled != 0) {
|
|
if (gCurAnimType == ANIM_TYPE_TRANSLATION
|
|
|| gCurAnimType == ANIM_TYPE_LATERAL_TRANSLATION) {
|
|
geo = node->node.children;
|
|
if (geo != NULL && geo->type == GRAPH_NODE_TYPE_SCALE)
|
|
objScale = ((struct GraphNodeScale *) geo)->scale;
|
|
animOffset[0] =
|
|
gCurAnimData[retrieve_animation_index(gCurrAnimFrame, &gCurrAnimAttribute)]
|
|
* gCurAnimTranslationMultiplier * objScale;
|
|
animOffset[1] = 0.0f;
|
|
gCurrAnimAttribute += 2;
|
|
animOffset[2] =
|
|
gCurAnimData[retrieve_animation_index(gCurrAnimFrame, &gCurrAnimAttribute)]
|
|
* gCurAnimTranslationMultiplier * objScale;
|
|
gCurrAnimAttribute -= 6;
|
|
|
|
// simple matrix rotation so the shadow offset rotates along with the object
|
|
sinAng = sins(gCurGraphNodeObject->angle[1]);
|
|
cosAng = coss(gCurGraphNodeObject->angle[1]);
|
|
|
|
shadowPos[0] += animOffset[0] * cosAng + animOffset[2] * sinAng;
|
|
shadowPos[2] += -animOffset[0] * sinAng + animOffset[2] * cosAng;
|
|
}
|
|
}
|
|
|
|
shadowList = create_shadow_below_xyz(shadowPos[0], shadowPos[1], shadowPos[2], shadowScale,
|
|
node->shadowSolidity, node->shadowType);
|
|
if (shadowList != NULL) {
|
|
mtx = alloc_display_list(sizeof(*mtx));
|
|
gMatStackIndex++;
|
|
mtxf_translate(mtxf, shadowPos);
|
|
mtxf_mul(gMatStack[gMatStackIndex], mtxf, gCurGraphNodeCamera->matrixPtr);
|
|
mtxf_to_mtx(mtx, gMatStack[gMatStackIndex]);
|
|
gMatStackFixed[gMatStackIndex] = mtx;
|
|
if (gShadowAboveWaterOrLava == 1)
|
|
geo_append_display_list((void *) VIRTUAL_TO_PHYSICAL(shadowList), 4);
|
|
else if (gMarioOnIceOrCarpet == 1)
|
|
geo_append_display_list((void *) VIRTUAL_TO_PHYSICAL(shadowList), 5);
|
|
else
|
|
geo_append_display_list((void *) VIRTUAL_TO_PHYSICAL(shadowList), 6);
|
|
gMatStackIndex--;
|
|
}
|
|
}
|
|
if (node->node.children != NULL)
|
|
geo_process_node_and_siblings(node->node.children);
|
|
}
|
|
|
|
/** Check whether an object is in view to determine whether it should be drawn.
|
|
* This is known as frustrum culling.
|
|
* It checks whether the object is far away, very close / behind the camera,
|
|
* or horizontally out of view. It does not check whether it is vertically
|
|
* out of view. It assumes a sphere of 300 units around the object's position
|
|
* unless the object has a culling radius node that specifies otherwise.
|
|
*
|
|
* The matrix parameter should be the top of the matrix stack, which is the
|
|
* object's transformation matrix times the camera 'look-at' matrix. The math
|
|
* is counter-intuitive, but it checks column 3 (translation vector) of this
|
|
* matrix to determine where the origin (0,0,0) in object space will be once
|
|
* transformed to camera space (x+ = right, y+ = up, z = 'coming out the screen').
|
|
* In 3D graphics, you typically model the world as being moved in front of a
|
|
* static camera instead of a moving camera through a static world, which in
|
|
* this case simplifies calculations. Note that the perspective matrix is not
|
|
* on the matrix stack, so there are still calculations with the fov to compute
|
|
* the slope of the lines of the frustrum.
|
|
*
|
|
* z-
|
|
*
|
|
* \ | /
|
|
* \ | /
|
|
* \ | /
|
|
* \ | /
|
|
* \ | /
|
|
* \|/
|
|
* C x+
|
|
*
|
|
* Since (0,0,0) is unaffected by rotation, columns 0, 1 and 2 are ignored.
|
|
*/
|
|
static int obj_is_in_view(struct GraphNodeObject *node, Mat4 matrix) {
|
|
s16 cullingRadius;
|
|
s16 halfFov; // half of the fov in in-game angle units instead of degrees
|
|
struct GraphNode *geo;
|
|
f32 hScreenEdge;
|
|
|
|
if (node->node.flags & GRAPH_RENDER_INVISIBLE)
|
|
return FALSE;
|
|
|
|
geo = node->sharedChild;
|
|
|
|
// ! @bug The aspect ratio is not accounted for. When the fov value is 45,
|
|
// the horizontal effective fov is actually 60 degrees, so you can see objects
|
|
// visibly pop in or out at the edge of the screen.
|
|
halfFov = (gCurGraphNodeCamFrustum->fov / 2.0f + 1.0f) * 32768.0f / 180.0f + 0.5f;
|
|
|
|
hScreenEdge = -matrix[3][2] * sins(halfFov) / coss(halfFov);
|
|
// -matrix[3][2] is the depth, which gets multiplied by tan(halfFov) to get
|
|
// the amount of units between the center of the screen and the horizontal edge
|
|
// given the distance from the object to the camera.
|
|
|
|
if (geo != NULL && geo->type == GRAPH_NODE_TYPE_CULLING_RADIUS)
|
|
cullingRadius =
|
|
(f32)((struct GraphNodeCullingRadius *) geo)->cullingRadius; //! Why is there a f32 cast?
|
|
else
|
|
cullingRadius = 300;
|
|
|
|
// Don't render if the object is close to or behind the camera
|
|
if (matrix[3][2] > -100.0f + cullingRadius)
|
|
return FALSE;
|
|
|
|
//! This makes the HOLP not update when the camera is far away, and it
|
|
// makes PU travel safe when the camera is locked on the main map.
|
|
// If Mario were rendered with a depth over 65536 it would cause overflow
|
|
// when converting the transformation matrix to a fixed point matrix.
|
|
if (matrix[3][2] < -20000.0f - cullingRadius)
|
|
return FALSE;
|
|
|
|
// Check whether the object is horizontally in view
|
|
if (matrix[3][0] > hScreenEdge + cullingRadius)
|
|
return FALSE;
|
|
if (matrix[3][0] < -hScreenEdge - cullingRadius)
|
|
return FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
/** Process an object node.
|
|
*/
|
|
static void geo_process_object(struct Object *node) {
|
|
Mat4 mtxf;
|
|
s32 hasAnimation = (node->header.gfx.node.flags & GRAPH_RENDER_HAS_ANIMATION) != 0;
|
|
|
|
if (node->header.gfx.unk18 == gCurGraphNodeRoot->areaIndex) {
|
|
if (node->header.gfx.throwMatrix != NULL) {
|
|
mtxf_mul(gMatStack[gMatStackIndex + 1], (void *) node->header.gfx.throwMatrix,
|
|
gMatStack[gMatStackIndex]);
|
|
} else if (node->header.gfx.node.flags & 4) {
|
|
mtxf_billboard(gMatStack[gMatStackIndex + 1], gMatStack[gMatStackIndex],
|
|
node->header.gfx.pos, gCurGraphNodeCamera->roll);
|
|
} else {
|
|
mtxf_rotate_zxy_and_translate(mtxf, node->header.gfx.pos, node->header.gfx.angle);
|
|
mtxf_mul(gMatStack[gMatStackIndex + 1], mtxf, gMatStack[gMatStackIndex]);
|
|
}
|
|
|
|
mtxf_scale_vec3f(gMatStack[gMatStackIndex + 1], gMatStack[gMatStackIndex + 1],
|
|
node->header.gfx.scale);
|
|
node->header.gfx.throwMatrix = gMatStack[++gMatStackIndex];
|
|
node->header.gfx.cameraToObject[0] = gMatStack[gMatStackIndex][3][0];
|
|
node->header.gfx.cameraToObject[1] = gMatStack[gMatStackIndex][3][1];
|
|
node->header.gfx.cameraToObject[2] = gMatStack[gMatStackIndex][3][2];
|
|
|
|
// FIXME: correct types
|
|
if (node->header.gfx.unk38.curAnim != NULL)
|
|
geo_set_animation_globals(&node->header.gfx.unk38, hasAnimation);
|
|
if (obj_is_in_view(&node->header.gfx, gMatStack[gMatStackIndex])) {
|
|
Mtx *mtx = alloc_display_list(sizeof(*mtx));
|
|
|
|
mtxf_to_mtx(mtx, gMatStack[gMatStackIndex]);
|
|
gMatStackFixed[gMatStackIndex] = mtx;
|
|
if (node->header.gfx.sharedChild != NULL) {
|
|
gCurGraphNodeObject = (struct GraphNodeObject *) node;
|
|
node->header.gfx.sharedChild->parent = &node->header.gfx.node;
|
|
geo_process_node_and_siblings(node->header.gfx.sharedChild);
|
|
node->header.gfx.sharedChild->parent = NULL;
|
|
gCurGraphNodeObject = NULL;
|
|
}
|
|
if (node->header.gfx.node.children != NULL)
|
|
geo_process_node_and_siblings(node->header.gfx.node.children);
|
|
}
|
|
|
|
gMatStackIndex--;
|
|
gCurAnimType = ANIM_TYPE_NONE;
|
|
node->header.gfx.throwMatrix = NULL;
|
|
}
|
|
}
|
|
|
|
/** Process an object parent node. Temporarily assigns itself as the parent of
|
|
* the subtree rooted at 'sharedChild' and processes the subtree, after which the
|
|
* actual children are be processed. (in practice they are null though)
|
|
*/
|
|
static void geo_process_object_parent(struct GraphNodeObjectParent *node) {
|
|
if (node->sharedChild != NULL) {
|
|
node->sharedChild->parent = (struct GraphNode *) node;
|
|
geo_process_node_and_siblings(node->sharedChild);
|
|
node->sharedChild->parent = NULL;
|
|
}
|
|
if (node->node.children != NULL)
|
|
geo_process_node_and_siblings(node->node.children);
|
|
}
|
|
|
|
/** Process a held object node.
|
|
*/
|
|
void geo_process_held_object(struct GraphNodeHeldObject *node) {
|
|
Mat4 mat;
|
|
Vec3f translation;
|
|
Mtx *mtx = alloc_display_list(sizeof(*mtx));
|
|
|
|
#ifdef F3DEX_GBI_2
|
|
gSPLookAt(gDisplayListHead++, &lookAt);
|
|
#endif
|
|
|
|
if (node->fnNode.func != NULL)
|
|
node->fnNode.func(GEO_CONTEXT_RENDER, &node->fnNode.node, gMatStack[gMatStackIndex]);
|
|
if (node->objNode != NULL && node->objNode->sharedChild != NULL) {
|
|
s32 hasAnimation = (node->objNode->node.flags & GRAPH_RENDER_HAS_ANIMATION) != 0;
|
|
|
|
translation[0] = node->translation[0] / 4.0f;
|
|
translation[1] = node->translation[1] / 4.0f;
|
|
translation[2] = node->translation[2] / 4.0f;
|
|
|
|
mtxf_translate(mat, translation);
|
|
mtxf_copy(gMatStack[gMatStackIndex + 1], (void *) gCurGraphNodeObject->throwMatrix);
|
|
gMatStack[gMatStackIndex + 1][3][0] = gMatStack[gMatStackIndex][3][0];
|
|
gMatStack[gMatStackIndex + 1][3][1] = gMatStack[gMatStackIndex][3][1];
|
|
gMatStack[gMatStackIndex + 1][3][2] = gMatStack[gMatStackIndex][3][2];
|
|
mtxf_mul(gMatStack[gMatStackIndex + 1], mat, gMatStack[gMatStackIndex + 1]);
|
|
mtxf_scale_vec3f(gMatStack[gMatStackIndex + 1], gMatStack[gMatStackIndex + 1],
|
|
node->objNode->scale);
|
|
if (node->fnNode.func != NULL)
|
|
node->fnNode.func(GEO_CONTEXT_HELD_OBJ, &node->fnNode.node,
|
|
(struct AllocOnlyPool *) gMatStack[gMatStackIndex + 1]);
|
|
gMatStackIndex++;
|
|
mtxf_to_mtx(mtx, gMatStack[gMatStackIndex]);
|
|
gMatStackFixed[gMatStackIndex] = mtx;
|
|
gGeoTempState.type = gCurAnimType;
|
|
gGeoTempState.enabled = gCurAnimEnabled;
|
|
gGeoTempState.frame = gCurrAnimFrame;
|
|
gGeoTempState.translationMultiplier = gCurAnimTranslationMultiplier;
|
|
gGeoTempState.attribute = gCurrAnimAttribute;
|
|
gGeoTempState.data = gCurAnimData;
|
|
gCurAnimType = 0;
|
|
gCurGraphNodeHeldObject = (void *) node;
|
|
if (node->objNode->unk38.curAnim != NULL)
|
|
geo_set_animation_globals(&node->objNode->unk38, hasAnimation);
|
|
|
|
geo_process_node_and_siblings(node->objNode->sharedChild);
|
|
gCurGraphNodeHeldObject = NULL;
|
|
gCurAnimType = gGeoTempState.type;
|
|
gCurAnimEnabled = gGeoTempState.enabled;
|
|
gCurrAnimFrame = gGeoTempState.frame;
|
|
gCurAnimTranslationMultiplier = gGeoTempState.translationMultiplier;
|
|
gCurrAnimAttribute = gGeoTempState.attribute;
|
|
gCurAnimData = gGeoTempState.data;
|
|
gMatStackIndex--;
|
|
}
|
|
|
|
if (node->fnNode.node.children != NULL)
|
|
geo_process_node_and_siblings(node->fnNode.node.children);
|
|
}
|
|
|
|
/** Processes the children of the given GraphNode if it has any
|
|
*/
|
|
void geo_try_process_children(struct GraphNode *node) {
|
|
if (node->children != NULL)
|
|
geo_process_node_and_siblings(node->children);
|
|
}
|
|
|
|
/** Process a generic geo node and its siblings.
|
|
* The first argument is the start node, and all its siblings will
|
|
* be iterated over.
|
|
*/
|
|
void geo_process_node_and_siblings(struct GraphNode *firstNode) {
|
|
s16 iterateChildren = TRUE;
|
|
struct GraphNode *curGraphNode = firstNode;
|
|
struct GraphNode *parent = curGraphNode->parent;
|
|
|
|
// In the case of a switch node, exactly one of the children of the node is
|
|
// processed instead of all children like usual
|
|
if (parent != NULL)
|
|
iterateChildren = (parent->type != GRAPH_NODE_TYPE_SWITCH_CASE);
|
|
|
|
do {
|
|
if (curGraphNode->flags & GRAPH_RENDER_ACTIVE) {
|
|
if (curGraphNode->flags & GRAPH_RENDER_CHILDREN_FIRST) {
|
|
geo_try_process_children(curGraphNode);
|
|
} else {
|
|
switch (curGraphNode->type) {
|
|
case GRAPH_NODE_TYPE_ORTHO_PROJECTION:
|
|
geo_process_ortho_projection((struct GraphNodeOrthoProjection *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_PERSPECTIVE:
|
|
geo_process_perspective((struct GraphNodePerspective *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_MASTER_LIST:
|
|
geo_process_master_list((struct GraphNodeMasterList *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_LEVEL_OF_DETAIL:
|
|
geo_process_level_of_detail((struct GraphNodeLevelOfDetail *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_SWITCH_CASE:
|
|
geo_process_switch((struct GraphNodeSwitchCase *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_CAMERA:
|
|
geo_process_camera((struct GraphNodeCamera *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_TRANSLATION_ROTATION:
|
|
geo_process_translation_rotation(
|
|
(struct GraphNodeTranslationRotation *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_TRANSLATION:
|
|
geo_process_translation((struct GraphNodeTranslation *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_ROTATION:
|
|
geo_process_rotation((struct GraphNodeRotation *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_OBJECT:
|
|
geo_process_object((struct Object *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_ANIMATED_PART:
|
|
geo_process_animated_part((struct GraphNodeAnimatedPart *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_BILLBOARD:
|
|
geo_process_billboard((struct GraphNodeBillboard *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_DISPLAY_LIST:
|
|
geo_process_display_list((struct GraphNodeDisplayList *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_SCALE:
|
|
geo_process_scale((struct GraphNodeScale *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_SHADOW:
|
|
geo_process_shadow((struct GraphNodeShadow *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_OBJECT_PARENT:
|
|
geo_process_object_parent((struct GraphNodeObjectParent *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_GENERATED_LIST:
|
|
geo_process_generated_list((struct GraphNodeGenerated *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_BACKGROUND:
|
|
geo_process_background((struct GraphNodeBackground *) curGraphNode);
|
|
break;
|
|
case GRAPH_NODE_TYPE_HELD_OBJ:
|
|
geo_process_held_object((struct GraphNodeHeldObject *) curGraphNode);
|
|
break;
|
|
default:
|
|
geo_try_process_children((struct GraphNode *) curGraphNode);
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
if (curGraphNode->type == GRAPH_NODE_TYPE_OBJECT)
|
|
((struct GraphNodeObject *) curGraphNode)->throwMatrix = NULL;
|
|
}
|
|
} while (iterateChildren && (curGraphNode = curGraphNode->next) != firstNode);
|
|
}
|
|
|
|
/** Process a root node. This is the entry point for processing the scene graph.
|
|
* The root node itself sets up the viewport, then all its children are processed
|
|
* to set up the projection and draw display lists.
|
|
*/
|
|
void geo_process_root(struct GraphNodeRoot *node, Vp *b, Vp *c, s32 clearColor) {
|
|
UNUSED s32 unused;
|
|
|
|
if (node->node.flags & GRAPH_RENDER_ACTIVE) {
|
|
Mtx *initialMatrix;
|
|
Vp *viewport = alloc_display_list(sizeof(*viewport));
|
|
|
|
gDisplayListHeap = alloc_only_pool_init(main_pool_available() - 16, MEMORY_POOL_LEFT);
|
|
initialMatrix = alloc_display_list(sizeof(*initialMatrix));
|
|
gMatStackIndex = 0;
|
|
gCurAnimType = 0;
|
|
vec3s_set(viewport->vp.vtrans, node->x * 4, node->y * 4, 511);
|
|
vec3s_set(viewport->vp.vscale, node->width * 4, node->height * 4, 511);
|
|
if (b != NULL) {
|
|
clear_frame_buffer(clearColor);
|
|
make_viewport_clip_rect(b);
|
|
*viewport = *b;
|
|
}
|
|
|
|
else if (c != NULL) {
|
|
clear_frame_buffer(clearColor);
|
|
make_viewport_clip_rect(c);
|
|
}
|
|
|
|
mtxf_identity(gMatStack[gMatStackIndex]);
|
|
mtxf_to_mtx(initialMatrix, gMatStack[gMatStackIndex]);
|
|
gMatStackFixed[gMatStackIndex] = initialMatrix;
|
|
gSPViewport(gDisplayListHead++, VIRTUAL_TO_PHYSICAL(viewport));
|
|
gSPMatrix(gDisplayListHead++, VIRTUAL_TO_PHYSICAL(gMatStackFixed[gMatStackIndex]),
|
|
G_MTX_MODELVIEW | G_MTX_LOAD);
|
|
gCurGraphNodeRoot = node;
|
|
if (node->node.children != NULL)
|
|
geo_process_node_and_siblings(node->node.children);
|
|
gCurGraphNodeRoot = NULL;
|
|
if (gShowDebugText)
|
|
print_text_fmt_int(180, 36, "MEM %d",
|
|
gDisplayListHeap->totalSpace - gDisplayListHeap->usedSpace);
|
|
main_pool_free(gDisplayListHeap);
|
|
}
|
|
}
|