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/**
* @file z_fbdemo.c
*
* This file implements an unused transition system that takes the current screen, partitions it into large tiles, and
* can apply an effect to them.
*
* The screen is divided into 7 rows and 10 columns of tiles. (`gScreenWidth`/ 10 = `gScreenHeight` / 7 = 0x20)
*
* @note The only coded effect has a visual effect to blend the tiles to a single point, which looks like the screen
* gets sucked into.
*/
#include "z64transition.h"
#include "global.h"
#include "system_malloc.h"
#include "macros.h"
#include "z64math.h"
#include <string.h>
Gfx sTransTileSetupDL[] = {
gsDPPipeSync(),
gsSPTexture(0x8000, 0x8000, 0, G_TX_RENDERTILE, G_ON),
gsSPLoadGeometryMode(G_TEXTURE_ENABLE),
gsDPSetCombineMode(G_CC_DECALRGB, G_CC_DECALRGB),
gsDPSetOtherMode(G_AD_DISABLE | G_CD_MAGICSQ | G_CK_NONE | G_TC_FILT | G_TF_BILERP | G_TT_NONE | G_TL_TILE |
G_TD_CLAMP | G_TP_PERSP | G_CYC_1CYCLE | G_PM_1PRIMITIVE,
G_AC_NONE | G_ZS_PIXEL | G_RM_AA_OPA_SURF | G_RM_AA_OPA_SURF2),
gsSPEndDisplayList(),
};
#define SET_VERTEX(vtx, x, y, z, f, s, t, nx, ny, nz, alpha) \
{ \
Vtx_tn* vtxn = &(vtx)->n; \
vtxn->ob[0] = (x); \
vtxn->ob[1] = (y); \
vtxn->ob[2] = (z); \
vtxn->flag = 0; \
vtxn->tc[0] = (s); \
vtxn->tc[1] = (t); \
vtxn->n[0] = (nx); \
vtxn->n[1] = (ny); \
vtxn->n[2] = (nz); \
vtxn->a = (alpha); \
} \
(void)0
void TransitionTile_InitGraphics(TransitionTile* this) {
s32 frame;
s32 col;
s32 col2;
s32 colTex;
Vtx* vtx;
s32 row;
s32 rowTex;
Gfx* gfx;
guMtxIdent(&this->modelView);
guMtxIdent(&this->unk_98);
guOrtho(&this->projection, 0.0f, SCREEN_WIDTH, SCREEN_HEIGHT, 0.0f, -1000.0f, 1000.0f, 1.0f);
for (frame = 0; frame < 2; frame++) {
this->frame = frame;
vtx = (this->frame == 0) ? this->vtxFrame1 : this->vtxFrame2;
rowTex = 0;
for (row = 0; row < (this->rows + 1); row++) {
colTex = 0;
for (col = 0; col < (this->cols + 1); col++) {
SET_VERTEX(vtx++, col * 0x20, row * 0x20, -5, 0, colTex << 6, rowTex << 6, 0, 0, 120, 255);
colTex += 0x20;
}
rowTex += 0x20;
}
}
gfx = this->gfx;
for (rowTex = 0, row = 0; row < this->rows; row++, rowTex += 0x20) {
gSPVertex(gfx++, SEGMENT_ADDR(0xA, (u32)row * (this->cols + 1) * sizeof(Vtx)), 2 * (this->cols + 1), 0);
colTex = 0;
col2 = 0;
col = 0;
while (col < this->cols) {
gDPPipeSync(gfx++);
gDPLoadTextureTile(gfx++, SEGMENT_ADDR(0xB, 0), G_IM_FMT_RGBA, G_IM_SIZ_16b, SCREEN_WIDTH, SCREEN_HEIGHT,
colTex, rowTex, colTex + 0x20, rowTex + 0x20, 0, G_TX_NOMIRROR | G_TX_WRAP,
G_TX_NOMIRROR | G_TX_WRAP, G_TX_NOMASK, G_TX_NOMASK, G_TX_NOLOD, G_TX_NOLOD);
gSP1Quadrangle(gfx++, col, col + 1, col2 + this->cols + 2, this->cols + col2 + 1, 0);
colTex += 0x20;
col2++;
col++;
}
}
gDPPipeSync(gfx++);
gSPEndDisplayList(gfx++);
}
void TransitionTile_InitVtxData(TransitionTile* this) {
s32 row;
s32 col;
for (row = 0; row < this->rows + 1; row++) {
for (col = 0; col < this->cols + 1; col++) {
(this->vtxData + col + row * (this->cols + 1))->x = col * 0x20;
(this->vtxData + col + row * (this->cols + 1))->y = row * 0x20;
}
}
}
void TransitionTile_Destroy(TransitionTile* this) {
Sleep_Msec(100);
if (this->vtxData != NULL) {
SystemArena_Free(this->vtxData);
this->vtxData = NULL;
}
if (this->vtxFrame1 != NULL) {
SystemArena_Free(this->vtxFrame1);
this->vtxFrame1 = NULL;
}
if (this->vtxFrame2 != NULL) {
SystemArena_Free(this->vtxFrame2);
this->vtxFrame2 = NULL;
}
if (this->gfx != NULL) {
SystemArena_Free(this->gfx);
this->gfx = NULL;
}
}
TransitionTile* TransitionTile_Init(TransitionTile* this, s32 cols, s32 rows) {
s32 gridSize;
memset(this, 0, sizeof(TransitionTile));
this->frame = 0;
this->cols = cols;
this->rows = rows;
gridSize = (cols + 1) * (rows + 1);
this->vtxData = SystemArena_Malloc(gridSize * sizeof(TransitionTileVtxData));
this->vtxFrame1 = SystemArena_Malloc(gridSize * sizeof(Vtx));
this->vtxFrame2 = SystemArena_Malloc(gridSize * sizeof(Vtx));
this->gfx = SystemArena_Malloc(((cols * 9 + 1) * rows + 2) * sizeof(Gfx));
if ((this->vtxData == NULL) || (this->vtxFrame1 == NULL) || (this->vtxFrame2 == NULL) || (this->gfx == NULL)) {
if (this->vtxData != NULL) {
SystemArena_Free(this->vtxData);
this->vtxData = NULL;
}
if (this->vtxFrame1 != NULL) {
SystemArena_Free(this->vtxFrame1);
this->vtxFrame1 = NULL;
}
if (this->vtxFrame2 != NULL) {
SystemArena_Free(this->vtxFrame2);
this->vtxFrame2 = NULL;
}
if (this->gfx != NULL) {
SystemArena_Free(this->gfx);
this->gfx = NULL;
}
return NULL;
}
TransitionTile_InitGraphics(this);
TransitionTile_InitVtxData(this);
this->frame = 0;
return this;
}
void TransitionTile_SetVtx(TransitionTile* this) {
s32 row;
s32 col;
Vtx* vtx;
for (row = 0; row < this->rows + 1; row++) {
for (col = 0; col < this->cols + 1; col++) {
vtx = (this->frame == 0) ? this->vtxFrame1 : this->vtxFrame2;
(vtx + col + row * (this->cols + 1))->n.ob[0] = (this->vtxData + col + row * (this->cols + 1))->x;
vtx = (this->frame == 0) ? this->vtxFrame1 : this->vtxFrame2;
(vtx + col + row * (this->cols + 1))->n.ob[1] = (this->vtxData + col + row * (this->cols + 1))->y;
}
}
}
void TransitionTile_Draw(TransitionTile* this, Gfx** gfxP) {
Gfx* gfx = *gfxP;
gSPDisplayList(gfx++, sTransTileSetupDL);
TransitionTile_SetVtx(this);
gSPMatrix(gfx++, &this->projection, G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_PROJECTION);
gSPMatrix(gfx++, &this->modelView, G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
gSPSegment(gfx++, 0xA, this->frame == 0 ? this->vtxFrame1 : this->vtxFrame2);
gSPSegment(gfx++, 0xB, this->zBuffer);
gSPDisplayList(gfx++, sTransTileSetupDL);
gSPDisplayList(gfx++, this->gfx);
gDPPipeSync(gfx++);
this->frame ^= 1;
*gfxP = gfx;
}
void TransitionTile_Suck(TransitionTile* this) {
s32 row;
s32 col;
f32 diffX;
f32 diffY;
f32 scale;
for (row = 0; row < this->rows + 1; row++) {
for (col = 0; col < this->cols + 1; col++) {
diffX = (this->vtxData + col + row * (this->cols + 1))->x - (this->vtxData + 5 + 4 * (this->cols + 1))->x;
diffY = (this->vtxData + col + row * (this->cols + 1))->y - (this->vtxData + 5 + 4 * (this->cols + 1))->y;
scale = (SQ(diffX) + SQ(diffY)) / SQ(10.0f);
if (scale != 0.0f) {
if (scale < 1.0f) {
scale = 1.0f;
}
(this->vtxData + col + row * (this->cols + 1))->x -= diffX / scale;
(this->vtxData + col + row * (this->cols + 1))->y -= diffY / scale;
}
}
}
}
void TransitionTile_Update(TransitionTile* this) {
}
s32 func_801647B8(TransitionTile* this) {
return 0;
}
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