Zelda64Recomp/patches/effect_patches.c

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#include "patches.h"
#include "graphics.h"
#include "sys_cfb.h"
#include "z64view.h"
#include "transform_ids.h"
extern TransitionOverlay gTransitionOverlayTable[];
extern Gfx sTransWipe3DL[];
#define THIS ((TransitionWipe3*)thisx)
// @recomp patched to scale the transition based on aspect ratio
void TransitionWipe3_Draw(void* thisx, Gfx** gfxP) {
Gfx* gfx = *gfxP;
Mtx* modelView = &THIS->modelView[THIS->frame];
f32 scale = 14.8f;
Gfx* texScroll;
// @recomp Modify the scale based on the aspect ratio to make sure the transition circle covers the whole screen
float original_aspect_ratio = ((float)SCREEN_WIDTH) / ((float)SCREEN_HEIGHT);
scale *= recomp_get_aspect_ratio(original_aspect_ratio) / original_aspect_ratio;
THIS->frame ^= 1;
gDPPipeSync(gfx++);
texScroll = Gfx_BranchTexScroll(&gfx, THIS->scrollX, THIS->scrollY, 16, 64);
gSPSegment(gfx++, 0x09, texScroll);
gSPSegment(gfx++, 0x08, THIS->curTexture);
gDPSetColor(gfx++, G_SETPRIMCOLOR, THIS->color.rgba);
gDPSetColor(gfx++, G_SETENVCOLOR, THIS->color.rgba);
gSPMatrix(gfx++, &THIS->projection, G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_PROJECTION);
gSPPerspNormalize(gfx++, THIS->normal);
gSPMatrix(gfx++, &THIS->lookAt, G_MTX_NOPUSH | G_MTX_MUL | G_MTX_PROJECTION);
if (scale != 1.0f) {
guScale(modelView, scale, scale, 1.0f);
gSPMatrix(gfx++, modelView, G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
}
// sTransWipe3DL is an overlay symbol, so its addresses need to be offset to get the actual loaded vram address.
// TODO remove this once the recompiler is able to handle overlay symbols automatically for patch functions.
ptrdiff_t reloc_offset;
TransitionOverlay* overlay_entry = &gTransitionOverlayTable[FBDEMO_WIPE3];
reloc_offset = (uintptr_t)Lib_PhysicalToVirtual(overlay_entry->loadInfo.addr) - (uintptr_t)overlay_entry->vramStart;
gSPDisplayList(gfx++, (Gfx*)((u8*)sTransWipe3DL + reloc_offset));
gDPPipeSync(gfx++);
*gfxP = gfx;
}
#undef THIS
typedef enum {
/* 0 */ MOTION_BLUR_OFF,
/* 1 */ MOTION_BLUR_SETUP,
/* 2 */ MOTION_BLUR_PROCESS
} MotionBlurStatus;
extern u8 sMotionBlurStatus;
extern s32 gFramerateDivisor;
// @recomp Motion blur works fine normally, but when running at a higher framerate the effect is much less pronounced
// as the previous frames decay quicker due to there being more frames drawn in the same period of time.
void Play_DrawMotionBlur(PlayState* this) {
GraphicsContext* gfxCtx = this->state.gfxCtx;
s32 alpha;
Gfx* gfx;
Gfx* gfxHead;
if (R_MOTION_BLUR_PRIORITY_ENABLED) {
alpha = R_MOTION_BLUR_PRIORITY_ALPHA;
if (sMotionBlurStatus == MOTION_BLUR_OFF) {
sMotionBlurStatus = MOTION_BLUR_SETUP;
}
} else if (R_MOTION_BLUR_ENABLED) {
alpha = R_MOTION_BLUR_ALPHA;
if (sMotionBlurStatus == MOTION_BLUR_OFF) {
sMotionBlurStatus = MOTION_BLUR_SETUP;
}
} else {
alpha = 0;
sMotionBlurStatus = MOTION_BLUR_OFF;
}
if (sMotionBlurStatus != MOTION_BLUR_OFF) {
OPEN_DISPS(gfxCtx);
gfxHead = POLY_OPA_DISP;
gfx = Graph_GfxPlusOne(gfxHead);
gSPDisplayList(OVERLAY_DISP++, gfx);
this->pauseBgPreRender.fbuf = gfxCtx->curFrameBuffer;
this->pauseBgPreRender.fbufSave = this->unk_18E64;
// @recomp Scale alpha based on the target framerate so that the blur effect decays at an equivalent rate
// to how it does in the original game's framerate.
s32 original_alpha = alpha;
f32 exponent = 20.0f / recomp_get_target_framerate(gFramerateDivisor);
f32 alpha_float = recomp_powf(alpha / 255.0f, exponent);
// Clamp to an alpha of 0.9, which ensures that the output color converges to within a reasonable delta
// of the target color when using an R8G8B8A8 framebuffer as RT64 currently does.
// Not clamping leads to image retention at high framerates.
alpha_float = MIN(alpha_float, 0.9f);
alpha = (s32)(alpha_float * 255.0f);
if (sMotionBlurStatus == MOTION_BLUR_PROCESS) {
func_80170AE0(&this->pauseBgPreRender, &gfx, alpha);
} else {
sMotionBlurStatus = MOTION_BLUR_PROCESS;
}
PreRender_SaveFramebuffer(&this->pauseBgPreRender, &gfx);
gSPEndDisplayList(gfx++);
Graph_BranchDlist(gfxHead, gfx);
POLY_OPA_DISP = gfx;
CLOSE_DISPS(gfxCtx);
}
}
// @recomp Patched to increase the scale based on the aspect ratio.
void Actor_DrawLensOverlay(Gfx** gfxP, s32 lensMaskSize) {
// @recomp Calculate the increase in aspect ratio.
f32 original_aspect_ratio = (float)SCREEN_WIDTH / SCREEN_HEIGHT;
f32 aspect_ratio_scale = recomp_get_aspect_ratio(original_aspect_ratio) / original_aspect_ratio;
// @recomp Increase the circle's scale based on the aspect ratio scale. Also increase the base scaling
// from 0.003f to 0.004f to account for overscan removal.
TransitionCircle_LoadAndSetTexture(gfxP, gCircleTex, 4, 0, 6, 6,
((LENS_MASK_ACTIVE_SIZE - lensMaskSize) * 0.004f * aspect_ratio_scale) + 1.0f);
}
// @recomp Patched to use ortho tris for interpolation and to prevent the telescope and lens effects from getting stretched wide.
void TransitionCircle_LoadAndSetTexture(Gfx** gfxp, TexturePtr texture, s32 fmt, s32 arg3, s32 masks, s32 maskt,
f32 arg6) {
Gfx* gfx = *gfxp;
s32 xh = gCfbWidth;
s32 yh = gCfbHeight;
s32 width = 1 << masks;
s32 height = 1 << maskt;
f32 s;
f32 t;
s32 dtdy;
s32 dsdx;
gDPLoadTextureBlock_4b(gfx++, texture, fmt, width, height, 0, G_TX_MIRROR | G_TX_CLAMP, G_TX_MIRROR | G_TX_CLAMP,
masks, maskt, G_TX_NOLOD, G_TX_NOLOD);
gDPSetTileSize(gfx++, G_TX_RENDERTILE, 0, 0, ((width * 2) - 1) << 2, ((height * 2) - 1) << 2);
s = ((1.0f - (1.0f / arg6)) * (SCREEN_WIDTH / 2)) + 70.0f;
t = ((1.0f - (1.0f / arg6)) * (SCREEN_HEIGHT / 2)) + 50.0f;
if (s < -1023.0f) {
s = -1023.0f;
}
if (t < -1023.0f) {
t = -1023.0f;
}
if ((s <= -1023.0f) || (t <= -1023.0f)) {
dsdx = 0;
dtdy = 0;
} else {
dsdx = ((SCREEN_WIDTH - (2.0f * s)) / gScreenWidth) * (1 << 10);
dtdy = ((SCREEN_HEIGHT - (2.0f * t)) / gScreenHeight) * (1 << 10);
}
// Push the old RDP/RSP params.
gEXPushProjectionMatrix(gfx++);
gEXPushGeometryMode(gfx++);
gEXMatrixGroupSimple(gfx++, CIRCLE_OVERLAY_TRANSFORM_PROJECTION_ID, G_EX_PUSH, G_MTX_PROJECTION,
G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_ORDER_LINEAR, G_EX_EDIT_NONE);
gEXMatrixGroupSimple(gfx++, CIRCLE_OVERLAY_TRANSFORM_ID, G_EX_PUSH, G_MTX_MODELVIEW,
G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_ORDER_LINEAR, G_EX_EDIT_NONE);
// Allocate a matrix and vertices in the displaylist because there's no handle to the GfxContext here.
Mtx* ortho_matrix = (Mtx*)(gfx + 1);
Mtx* model_matrix = ortho_matrix + 1;
Gfx* after_matrix = (Gfx*)(model_matrix + 4);
gSPBranchList(gfx++, after_matrix);
gfx = after_matrix;
// Set up an ortho projection matrix.
guOrtho(ortho_matrix, -SCREEN_WIDTH / 2, SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2, -SCREEN_HEIGHT / 2, -1.0f, 1.0f, 1.0f);
gSPMatrix(gfx++, ortho_matrix, G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_PROJECTION);
// Set up a scale model matrix, using the original texcoord scaling to calculate the matrix's scale.
guScale(model_matrix, 1024.0f / dsdx, 1024.0f / dtdy, 1.0f);
gSPMatrix(gfx++, model_matrix, G_MTX_PUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
// Enable texturing and set geometry mode.
gSPTexture(gfx++, 0x8000 * width / 64, 0x8000 * height / 64, 0, G_TX_RENDERTILE, G_ON);
gSPLoadGeometryMode(gfx++, 0);
static Vtx overlay_verts[] = {
// The quad that holds the lens itself.
{{{ -64, -64, 0}, 0, { 0, 0}, {0, 0, 0, 255}}},
{{{ 64, -64, 0}, 0, {512 << 5, 0}, {0, 0, 0, 255}}},
{{{ -64, 64, 0}, 0, { 0, 512 << 5}, {0, 0, 0, 255}}},
{{{ 64, 64, 0}, 0, {512 << 5, 512 << 5}, {0, 0, 0, 255}}},
// The top verts of the quad above the lens.
{{{ -64, -1000, 0}, 0, { 0, 0}, {0, 0, 0, 255}}},
{{{ 64, -1000, 0}, 0, {512 << 5, 0}, {0, 0, 0, 255}}},
// The bottom verts of the quad below the lens.
{{{ -64, 1000, 0}, 0, { 0, 512 << 5}, {0, 0, 0, 255}}},
{{{ 64, 1000, 0}, 0, {512 << 5, 512 << 5}, {0, 0, 0, 255}}},
// The left verts of the quad to the left of the lens.
{{{-4000, -1000, 0}, 0, { 0, 0}, {0, 0, 0, 255}}},
{{{-4000, 1000, 0}, 0, { 0, 512 << 5}, {0, 0, 0, 255}}},
// The right verts of the quad to the right of the lens.
{{{ 4000, -1000, 0}, 0, {512 << 5, 0}, {0, 0, 0, 255}}},
{{{ 4000, 1000, 0}, 0, {512 << 5, 512 << 5}, {0, 0, 0, 255}}},
};
// 8 4 5 10
// 0 1
// 2 3
// 9 6 7 11
// Load the verts.
gSPVertex(gfx++, overlay_verts, ARRAY_COUNT(overlay_verts), 0);
// Draw the quad containing the lens overlay.
gSP2Triangles(gfx++, 0, 1, 3, 0x0, 0, 3, 2, 0x0);
// Draw the quad above the lens overlay.
gSP2Triangles(gfx++, 4, 5, 1, 0x0, 4, 1, 0, 0x0);
// Draw the quad below the lens overlay.
gSP2Triangles(gfx++, 2, 3, 7, 0x0, 2, 7, 6, 0x0);
// Draw the quad to the left of the lens overlay.
gSP2Triangles(gfx++, 8, 4, 6, 0x0, 8, 6, 9, 0x0);
// Draw the quad to the right of the lens overlay.
gSP2Triangles(gfx++, 5, 10, 11, 0x0, 5, 11, 7, 0x0);
// Restore the old RDP/RSP params.
gEXPopProjectionMatrix(gfx++);
gEXPopGeometryMode(gfx++);
gSPPopMatrix(gfx++, G_MTX_MODELVIEW);
gEXPopMatrixGroup(gfx++, G_MTX_MODELVIEW);
gEXPopMatrixGroup(gfx++, G_MTX_PROJECTION);
gDPPipeSync(gfx++);
*gfxp = gfx;
}