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core2/code_851D0.c documentation

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Banjo Kazooie
2022-11-02 20:22:24 -05:00
parent ceb24cd225
commit 2493884959
1 changed files with 26 additions and 9 deletions
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35
src/core2/code_851D0.c
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@@ -4,6 +4,17 @@
extern u8 D_803A5D00[2][0x1ecc0];
#define TILE_SIZE 32
#define TILE_COUNT_X 5
#define TILE_COUNT_Y 4
#define IMAGE_WIDTH (TILE_SIZE * TILE_COUNT_X)
#define IMAGE_HEIGHT (TILE_SIZE * TILE_COUNT_Y)
#define SCREEN_WIDTH 292
#define SCREEN_HEIGHT 216
#define HORIZONTAL_MARGIN (((SCREEN_WIDTH) - IMAGE_WIDTH) / 2)
#define VERTICAL_MARGIN (((SCREEN_HEIGHT) - IMAGE_HEIGHT) / 2)
/* .data */
Gfx D_8036C450[] = {
gsDPPipeSync(),
@@ -42,7 +53,7 @@ void func_8030C180(void){
void func_8030C1A0(void){
if(D_80382454 == NULL){
D_80382454 = D_80382450 = malloc(0xA040);
D_80382454 = D_80382450 = malloc(IMAGE_WIDTH * IMAGE_HEIGHT * sizeof(u16) + 64);
while((s32)D_80382450 & 0x3F){
D_80382450++;
@@ -83,26 +94,32 @@ void func_8030C2D4(Gfx **gdl, Mtx **mptr, Vtx **vptr){
func_80253640(gdl, D_803A5D00[func_8024BDA0()]);
}
// Draws a 160x128 image pointed to by D_80382450 into the center of the screen
void func_8030C33C(Gfx **gfx, Mtx **mtx, Vtx **vtx) {
s32 x, y;
// Set up the rendering state to draw the image
gSPDisplayList((*gfx)++, D_8036C450);
for (y = 0; y < 4; y++) {
for(x = 0; x < 5; x++){
gDPLoadTextureTile((*gfx)++, osVirtualToPhysical(D_80382450), G_IM_FMT_IA, G_IM_SIZ_16b, 160, 128,
0x20*x, 0x20*y, 0x20*(x + 1) - 1, 0x20*(y + 1) - 1,
// Iterate over every tile in the image
for (y = 0; y < TILE_COUNT_Y; y++) {
for(x = 0; x < TILE_COUNT_X; x++){
// Load the current tile from the image
gDPLoadTextureTile((*gfx)++, osVirtualToPhysical(D_80382450), G_IM_FMT_IA, G_IM_SIZ_16b, IMAGE_WIDTH, IMAGE_HEIGHT,
TILE_SIZE * x, TILE_SIZE * y, TILE_SIZE * (x + 1) - 1, TILE_SIZE * (y + 1) - 1,
0,
G_TX_NOMIRROR | G_TX_CLAMP, G_TX_NOMIRROR | G_TX_CLAMP,
G_TX_NOMASK, G_TX_NOMASK,
G_TX_NOLOD, G_TX_NOLOD);
// Draw the tile to the screen at the target position
gSPScisTextureRectangle((*gfx)++,
(0x20*x + 0x42)*4, (0x20*y + 0x2C)*4,
(0x20*(x + 1) + 0x42)*4, (0x20*(y + 1) + 0x2C)*4,
(TILE_SIZE * x + HORIZONTAL_MARGIN) * 4, (TILE_SIZE * y + VERTICAL_MARGIN) * 4,
(TILE_SIZE * (x + 1) + HORIZONTAL_MARGIN) * 4, (TILE_SIZE * (y + 1) + VERTICAL_MARGIN) * 4,
0,
0x20*x << 5, 0x20*y << 5,
TILE_SIZE * x << 5, TILE_SIZE * y << 5,
1 << 10, 1 << 10);
}
}
// Reset the rendering state
gSPDisplayList((*gfx)++, D_8036C4A8);
}