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More documentation for PreRender.c (#1340)
* More documentation for PreRender.c * Comment fix * Suggested changes * More on coverage reading functions * Further comment changes * Further suggestions
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Tharo
GitHub
parent
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commit
0d52a4aebd
6 changed files with 440 additions and 215 deletions
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@ -1512,22 +1512,16 @@ void PreRender_SetValuesSave(PreRender* this, u32 width, u32 height, void* fbuf,
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void PreRender_Init(PreRender* this);
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void PreRender_SetValues(PreRender* this, u32 width, u32 height, void* fbuf, void* zbuf);
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void PreRender_Destroy(PreRender* this);
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void func_800C0F28(PreRender* this, Gfx** gfxp, void* buf, void* bufSave);
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void func_800C1258(PreRender* this, Gfx** gfxp);
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void func_800C170C(PreRender* this, Gfx** gfxp, void* fbuf, void* fbufSave, u32 r, u32 g, u32 b, u32 a);
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void func_800C170C(PreRender* this, Gfx** gfxp, void* buf, void* bufSave, u32 r, u32 g, u32 b, u32 a);
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void func_800C1AE8(PreRender* this, Gfx** gfxp, void* fbuf, void* fbufSave);
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void func_800C1B24(PreRender* this, Gfx** gfxp, void* fbuf, void* cvgSave);
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void func_800C1E9C(PreRender* this, Gfx** gfxp);
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void func_800C1F20(PreRender* this, Gfx** gfxp);
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void func_800C1FA4(PreRender* this, Gfx** gfxp);
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void func_800C20B4(PreRender* this, Gfx** gfxp);
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void func_800C2118(PreRender* this, Gfx** gfxp);
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void PreRender_SaveZBuffer(PreRender* this, Gfx** gfxp);
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void PreRender_SaveFramebuffer(PreRender* this, Gfx** gfxp);
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void PreRender_DrawCoverage(PreRender* this, Gfx** gfxp);
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void PreRender_RestoreZBuffer(PreRender* this, Gfx** gfxp);
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void func_800C213C(PreRender* this, Gfx** gfxp);
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void func_800C24BC(PreRender* this, Gfx** gfxp);
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void func_800C24E0(PreRender* this, Gfx** gfxp);
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void func_800C2500(PreRender* this, s32 x, s32 y);
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void func_800C2FE4(PreRender* this);
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void PreRender_Calc(PreRender* this);
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void PreRender_RestoreFramebuffer(PreRender* this, Gfx** gfxp);
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void PreRender_CopyImageRegion(PreRender* this, Gfx** gfxp);
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void PreRender_ApplyFilters(PreRender* this);
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void THGA_Ct(TwoHeadGfxArena* thga, Gfx* start, u32 size);
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void THGA_Dt(TwoHeadGfxArena* thga);
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u32 THGA_IsCrash(TwoHeadGfxArena* thga);
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@ -27,9 +27,6 @@
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#define CLAMP(x, min, max) ((x) < (min) ? (min) : (x) > (max) ? (max) : (x))
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#define CLAMP_MAX(x, max) ((x) > (max) ? (max) : (x))
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#define CLAMP_MIN(x, min) ((x) < (min) ? (min) : (x))
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#define MEDIAN3(a1, a2, a3) \
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(((a2) >= (a1)) ? (((a3) >= (a2)) ? (a2) : (((a1) >= (a3)) ? (a1) : (a3))) \
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: (((a2) >= (a3)) ? (a2) : (((a3) >= (a1)) ? (a1) : (a3))))
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#define RGBA8(r, g, b, a) ((((r) & 0xFF) << 24) | (((g) & 0xFF) << 16) | (((b) & 0xFF) << 8) | (((a) & 0xFF) << 0))
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@ -74,6 +74,9 @@
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#define STACK_TOP(stack) \
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((u8*)(stack) + sizeof(stack))
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// Texture memory size, 4 KiB
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#define TMEM_SIZE 0x1000
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// NOTE: Once we start supporting other builds, this can be changed with an ifdef
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#define REGION_NATIVE REGION_EU
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@ -1,3 +1,10 @@
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/**
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* @file PreRender.c
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*
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* This file implements various routines important to framebuffer effects, such as RDP accelerated color and depth
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* buffer copies and coverage drawing. Also contains software implementations of the Video Interface anti-aliasing and
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* divot filters.
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*/
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#include "global.h"
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#include "alloca.h"
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@ -33,11 +40,18 @@ void PreRender_Destroy(PreRender* this) {
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ListAlloc_FreeAll(&this->alloc);
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}
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void func_800C0F28(PreRender* this, Gfx** gfxp, void* buf, void* bufSave) {
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/**
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* Copies RGBA16 image `img` to `imgDst`
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*
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* @param gfxp Display list pointer
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* @param img Image to copy from
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* @param imgDst Buffer to copy to
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*/
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void PreRender_CopyImage(PreRender* this, Gfx** gfxp, void* img, void* imgDst) {
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Gfx* gfx;
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s32 x;
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s32 x2;
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s32 dx;
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s32 rowsRemaining;
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s32 curRow;
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s32 nRows;
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LogUtils_CheckNullPointer("this", this, "../PreRender.c", 215);
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LogUtils_CheckNullPointer("glistpp", gfxp, "../PreRender.c", 216);
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@ -45,35 +59,44 @@ void func_800C0F28(PreRender* this, Gfx** gfxp, void* buf, void* bufSave) {
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LogUtils_CheckNullPointer("glistp", gfx, "../PreRender.c", 218);
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gDPPipeSync(gfx++);
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// Configure the cycle type to COPY mode, disable blending
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gDPSetOtherMode(gfx++,
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G_AD_PATTERN | G_CD_MAGICSQ | G_CK_NONE | G_TC_CONV | G_TF_POINT | G_TT_NONE | G_TL_TILE |
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G_TD_CLAMP | G_TP_NONE | G_CYC_COPY | G_PM_NPRIMITIVE,
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G_AC_NONE | G_ZS_PIXEL | G_RM_NOOP | G_RM_NOOP2);
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gDPSetColorImage(gfx++, G_IM_FMT_RGBA, G_IM_SIZ_16b, this->width, bufSave);
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// Set the destination buffer as the color image and set the scissoring region to the entire image
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gDPSetColorImage(gfx++, G_IM_FMT_RGBA, G_IM_SIZ_16b, this->width, imgDst);
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gDPSetScissor(gfx++, G_SC_NON_INTERLACE, 0, 0, this->width, this->height);
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dx = 0x1000 / (this->width * 2);
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// Calculate the max number of rows that can fit into TMEM at once
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nRows = TMEM_SIZE / (this->width * G_IM_SIZ_16b_BYTES);
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x = this->height;
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x2 = 0;
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while (x > 0) {
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rowsRemaining = this->height;
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curRow = 0;
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while (rowsRemaining > 0) {
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s32 uls = 0;
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s32 lrs = this->width - 1;
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s32 ult;
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s32 lrt;
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dx = CLAMP_MAX(dx, x);
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ult = x2;
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lrt = (ult + dx) - 1;
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// Make sure that we don't load past the end of the source image
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nRows = MIN(rowsRemaining, nRows);
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gDPLoadTextureTile(gfx++, buf, G_IM_FMT_RGBA, G_IM_SIZ_16b, this->width, this->height, uls, ult, lrs, lrt, 0,
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// Determine the upper and lower bounds of the rect to draw
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ult = curRow;
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lrt = ult + nRows - 1;
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// Load a horizontal strip of the source image in RGBA16 format
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gDPLoadTextureTile(gfx++, img, G_IM_FMT_RGBA, G_IM_SIZ_16b, this->width, this->height, uls, ult, lrs, lrt, 0,
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G_TX_NOMIRROR | G_TX_WRAP, G_TX_NOMIRROR | G_TX_WRAP, G_TX_NOMASK, G_TX_NOMASK, G_TX_NOLOD,
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G_TX_NOLOD);
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// Draw that horizontal strip to the destination image, dsdx is 4 << 10 for COPY mode
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gSPTextureRectangle(gfx++, uls << 2, ult << 2, lrs << 2, lrt << 2, G_TX_RENDERTILE, uls << 5, ult << 5, 4 << 10,
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1 << 10);
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x -= dx;
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x2 += dx;
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rowsRemaining -= nRows;
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curRow += nRows;
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}
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gDPPipeSync(gfx++);
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@ -81,11 +104,15 @@ void func_800C0F28(PreRender* this, Gfx** gfxp, void* buf, void* bufSave) {
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*gfxp = gfx;
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}
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void func_800C1258(PreRender* this, Gfx** gfxp) {
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/**
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* Copies part of `this->fbufSave` in the region (this->ulx, this->uly), (this->lrx, this->lry) to the same location in
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* `this->fbuf`.
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*/
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void PreRender_CopyImageRegionImpl(PreRender* this, Gfx** gfxp) {
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Gfx* gfx;
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s32 y;
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s32 y2;
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s32 dy;
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s32 rowsRemaining;
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s32 curRow;
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s32 nRows;
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LogUtils_CheckNullPointer("this", this, "../PreRender.c", 278);
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LogUtils_CheckNullPointer("glistpp", gfxp, "../PreRender.c", 279);
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@ -93,49 +120,62 @@ void func_800C1258(PreRender* this, Gfx** gfxp) {
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LogUtils_CheckNullPointer("glistp", gfx, "../PreRender.c", 281);
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gDPPipeSync(gfx++);
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// Configure the cycle type to COPY mode, disable blending
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gDPSetOtherMode(gfx++,
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G_AD_PATTERN | G_CD_MAGICSQ | G_CK_NONE | G_TC_CONV | G_TF_POINT | G_TT_NONE | G_TL_TILE |
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G_TD_CLAMP | G_TP_NONE | G_CYC_COPY | G_PM_NPRIMITIVE,
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G_AC_NONE | G_ZS_PIXEL | G_RM_NOOP | G_RM_NOOP2);
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// Set the destination buffer as the color image and set the scissoring region to the destination region
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gDPSetColorImage(gfx++, G_IM_FMT_RGBA, G_IM_SIZ_16b, this->width, this->fbuf);
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gDPSetScissor(gfx++, G_SC_NON_INTERLACE, this->ulx, this->uly, this->lrx + 1, this->lry + 1);
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dy = 0x1000 / ((this->lrxSave - this->ulxSave + 1) * 2);
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// Calculate the max number of rows that can fit into TMEM at once
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nRows = TMEM_SIZE / ((this->lrxSave - this->ulxSave + 1) * G_IM_SIZ_16b_BYTES);
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y = (this->lrySave - this->ulySave) + 1;
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y2 = 0;
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while (y > 0) {
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rowsRemaining = (this->lrySave - this->ulySave) + 1;
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curRow = 0;
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while (rowsRemaining > 0) {
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s32 ult;
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s32 lrt;
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s32 uly;
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dy = CLAMP_MAX(dy, y);
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// Make sure that we don't load past the end of the source image
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nRows = MIN(rowsRemaining, nRows);
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ult = this->ulySave + y2;
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lrt = (ult + dy) - 1;
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uly = this->uly + y2;
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// Determine the upper and lower bounds of the rect to draw
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ult = this->ulySave + curRow;
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lrt = ult + nRows - 1;
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uly = this->uly + curRow;
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// Load a horizontal strip of the source image in RGBA16 format
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gDPLoadTextureTile(gfx++, this->fbufSave, G_IM_FMT_RGBA, G_IM_SIZ_16b, this->widthSave, this->height - 1,
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this->ulxSave, ult, this->lrxSave, lrt, 0, G_TX_NOMIRROR | G_TX_WRAP,
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G_TX_NOMIRROR | G_TX_WRAP, G_TX_NOMASK, G_TX_NOMASK, G_TX_NOLOD, G_TX_NOLOD);
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gSPTextureRectangle(gfx++, this->ulx << 2, uly << 2, this->lrx << 2, (uly + dy - 1) << 2, G_TX_RENDERTILE,
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// Draw that horizontal strip to the destination image, dsdx is 4 << 10 for COPY mode
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gSPTextureRectangle(gfx++, this->ulx << 2, uly << 2, this->lrx << 2, (uly + nRows - 1) << 2, G_TX_RENDERTILE,
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this->ulxSave << 5, ult << 5, 4 << 10, 1 << 10);
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y -= dy;
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y2 += dy;
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rowsRemaining -= nRows;
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curRow += nRows;
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}
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// Reset the color image and scissor
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gDPPipeSync(gfx++);
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gDPSetColorImage(gfx++, G_IM_FMT_RGBA, G_IM_SIZ_16b, this->width, this->fbuf);
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gDPSetScissor(gfx++, G_SC_NON_INTERLACE, 0, 0, this->width, this->height);
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*gfxp = gfx;
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}
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void func_800C170C(PreRender* this, Gfx** gfxp, void* fbuf, void* fbufSave, u32 r, u32 g, u32 b, u32 a) {
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/**
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* Copies `buf` to `bufSave`, discarding the alpha channel and modulating the RGB channel by
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* the color ('r', 'g', 'b', 'a')
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*/
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void func_800C170C(PreRender* this, Gfx** gfxp, void* buf, void* bufSave, u32 r, u32 g, u32 b, u32 a) {
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Gfx* gfx;
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s32 x;
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s32 x2;
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s32 dx;
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s32 rowsRemaining;
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s32 curRow;
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s32 nRows;
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LogUtils_CheckNullPointer("this", this, "../PreRender.c", 343);
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LogUtils_CheckNullPointer("glistpp", gfxp, "../PreRender.c", 344);
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@ -143,39 +183,51 @@ void func_800C170C(PreRender* this, Gfx** gfxp, void* fbuf, void* fbufSave, u32
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LogUtils_CheckNullPointer("glistp", gfx, "../PreRender.c", 346);
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gDPPipeSync(gfx++);
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// Set the cycle type to 1-cycle mode to use the color combiner
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gDPSetOtherMode(gfx++,
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G_AD_DISABLE | G_CD_DISABLE | G_CK_NONE | G_TC_FILT | G_TF_POINT | G_TT_NONE | G_TL_TILE |
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G_TD_CLAMP | G_TP_NONE | G_CYC_1CYCLE | G_PM_NPRIMITIVE,
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G_AC_NONE | G_ZS_PRIM | G_RM_OPA_SURF | G_RM_OPA_SURF2);
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gDPSetEnvColor(gfx++, r, g, b, a);
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// Redundant setting of color combiner, overwritten immediately
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// Would preserve rgb exactly while replacing the alpha channel with full alpha
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gDPSetCombineLERP(gfx++, 0, 0, 0, TEXEL0, 0, 0, 0, 1, 0, 0, 0, TEXEL0, 0, 0, 0, 1);
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// Modulate TEXEL0 by ENVIRONMENT, replace alpha with full alpha
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gDPSetCombineLERP(gfx++, TEXEL0, 0, ENVIRONMENT, 0, 0, 0, 0, 1, TEXEL0, 0, ENVIRONMENT, 0, 0, 0, 0, 1);
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gDPSetColorImage(gfx++, G_IM_FMT_RGBA, G_IM_SIZ_16b, this->width, fbufSave);
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// Set the destination buffer as the color image and set the scissoring region to the entire image
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gDPSetColorImage(gfx++, G_IM_FMT_RGBA, G_IM_SIZ_16b, this->width, bufSave);
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gDPSetScissor(gfx++, G_SC_NON_INTERLACE, 0, 0, this->width, this->height);
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dx = 0x1000 / (this->width * 2);
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// Calculate the max number of rows that can fit into TMEM at once
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nRows = TMEM_SIZE / (this->width * G_IM_SIZ_16b_BYTES);
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x = this->height;
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x2 = 0;
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while (x > 0) {
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rowsRemaining = this->height;
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curRow = 0;
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while (rowsRemaining > 0) {
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s32 uls = 0;
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s32 lrs = this->width - 1;
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s32 ult;
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s32 lrt;
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dx = CLAMP_MAX(dx, x);
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ult = x2;
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lrt = x2 + dx - 1;
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// Make sure that we don't load past the end of the source image
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nRows = MIN(rowsRemaining, nRows);
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gDPLoadTextureTile(gfx++, fbuf, G_IM_FMT_RGBA, G_IM_SIZ_16b, this->width, this->height, uls, ult, lrs, lrt, 0,
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// Determine the upper and lower bounds of the rect to draw
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ult = curRow;
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lrt = curRow + nRows - 1;
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// Load a horizontal strip of the source image in RGBA16 format
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gDPLoadTextureTile(gfx++, buf, G_IM_FMT_RGBA, G_IM_SIZ_16b, this->width, this->height, uls, ult, lrs, lrt, 0,
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G_TX_NOMIRROR | G_TX_WRAP, G_TX_NOMIRROR | G_TX_WRAP, G_TX_NOMASK, G_TX_NOMASK, G_TX_NOLOD,
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G_TX_NOLOD);
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// Draw that horizontal strip to the destination image
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gSPTextureRectangle(gfx++, uls << 2, ult << 2, (lrs + 1) << 2, (lrt + 1) << 2, G_TX_RENDERTILE, uls << 5,
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ult << 5, 1 << 10, 1 << 10);
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x -= dx;
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x2 += dx;
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rowsRemaining -= nRows;
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curRow += nRows;
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}
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gDPPipeSync(gfx++);
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@ -183,15 +235,26 @@ void func_800C170C(PreRender* this, Gfx** gfxp, void* fbuf, void* fbufSave, u32
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*gfxp = gfx;
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}
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/**
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* Copies `fbuf` to `fbufSave`, discarding the alpha channel and leaving the rgb channel unchanged
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*/
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void func_800C1AE8(PreRender* this, Gfx** gfxp, void* fbuf, void* fbufSave) {
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func_800C170C(this, gfxp, fbuf, fbufSave, 255, 255, 255, 255);
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}
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void func_800C1B24(PreRender* this, Gfx** gfxp, void* fbuf, void* cvgSave) {
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/**
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* Reads the coverage values stored in the RGBA16 format `img` with dimensions `this->width`, `this->height` and
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* converts it to an 8-bpp intensity image.
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*
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* @param gfxp Display list pointer
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* @param img Image to read coverage from
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* @param cvgDst Buffer to store coverage into
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*/
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void PreRender_CoverageRgba16ToI8(PreRender* this, Gfx** gfxp, void* img, void* cvgDst) {
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Gfx* gfx;
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s32 x;
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s32 x2;
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s32 dx;
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s32 rowsRemaining;
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s32 curRow;
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s32 nRows;
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LogUtils_CheckNullPointer("this", this, "../PreRender.c", 422);
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LogUtils_CheckNullPointer("glistpp", gfxp, "../PreRender.c", 423);
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@ -203,49 +266,85 @@ void func_800C1B24(PreRender* this, Gfx** gfxp, void* fbuf, void* cvgSave) {
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G_AD_DISABLE | G_CD_DISABLE | G_CK_NONE | G_TC_FILT | G_TF_POINT | G_TT_NONE | G_TL_TILE |
|
||||
G_TD_CLAMP | G_TP_NONE | G_CYC_1CYCLE | G_PM_NPRIMITIVE,
|
||||
G_AC_NONE | G_ZS_PRIM | G_RM_PASS | G_RM_OPA_CI2);
|
||||
|
||||
// Set the combiner to draw the texture as-is, discarding alpha channel
|
||||
gDPSetCombineLERP(gfx++, 0, 0, 0, TEXEL0, 0, 0, 0, 0, 0, 0, 0, TEXEL0, 0, 0, 0, 0);
|
||||
gDPSetColorImage(gfx++, G_IM_FMT_I, G_IM_SIZ_8b, this->width, cvgSave);
|
||||
// Set the destination color image to the provided address
|
||||
gDPSetColorImage(gfx++, G_IM_FMT_I, G_IM_SIZ_8b, this->width, cvgDst);
|
||||
// Set up a scissor based on the source image
|
||||
gDPSetScissor(gfx++, G_SC_NON_INTERLACE, 0, 0, this->width, this->height);
|
||||
|
||||
dx = 0x1000 / (this->width * 2);
|
||||
// Calculate the max number of rows that can fit into TMEM at once
|
||||
nRows = TMEM_SIZE / (this->width * G_IM_SIZ_16b_BYTES);
|
||||
|
||||
x = this->height;
|
||||
x2 = 0;
|
||||
while (x > 0) {
|
||||
// Set up the number of remaining rows
|
||||
rowsRemaining = this->height;
|
||||
curRow = 0;
|
||||
while (rowsRemaining > 0) {
|
||||
s32 uls = 0;
|
||||
s32 lrs = this->width - 1;
|
||||
s32 ult;
|
||||
s32 lrt;
|
||||
|
||||
dx = CLAMP_MAX(dx, x);
|
||||
ult = x2;
|
||||
lrt = x2 + dx - 1;
|
||||
// Make sure that we don't load past the end of the source image
|
||||
nRows = MIN(rowsRemaining, nRows);
|
||||
|
||||
gDPLoadTextureTile(gfx++, fbuf, G_IM_FMT_IA, G_IM_SIZ_16b, this->width, this->height, uls, ult, lrs, lrt, 0,
|
||||
// Determine the upper and lower bounds of the rect to draw
|
||||
ult = curRow;
|
||||
lrt = curRow + nRows - 1;
|
||||
|
||||
// Load a horizontal strip of the source image in IA16 format. Since the source image is stored in memory as
|
||||
// RGBA16, the bits are reinterpreted into IA16:
|
||||
//
|
||||
// r g b a
|
||||
// 11111 111 11 11111 1
|
||||
// i a
|
||||
// 11111 111 11 11111 1
|
||||
//
|
||||
// I = (r << 3) | (g >> 2)
|
||||
// A = (g << 6) | (b << 1) | a
|
||||
//
|
||||
// Since it is expected that r = g = b = cvg in the source image, this results in
|
||||
// I = (cvg << 3) | (cvg >> 2)
|
||||
// This expands the 5-bit coverage into an 8-bit value
|
||||
gDPLoadTextureTile(gfx++, img, G_IM_FMT_IA, G_IM_SIZ_16b, this->width, this->height, uls, ult, lrs, lrt, 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);
|
||||
|
||||
// Draw that horizontal strip to the destination image. With the combiner and blender configuration set above,
|
||||
// the intensity (I) channel of the loaded IA16 texture will be written as-is to the I8 color image, each pixel
|
||||
// in the final image is
|
||||
// I = (cvg << 3) | (cvg >> 2)
|
||||
gSPTextureRectangle(gfx++, uls << 2, ult << 2, (lrs + 1) << 2, (lrt + 1) << 2, G_TX_RENDERTILE, uls << 5,
|
||||
ult << 5, 1 << 10, 1 << 10);
|
||||
x -= dx;
|
||||
x2 += dx;
|
||||
|
||||
// Update the number of rows remaining and index of the row being drawn
|
||||
rowsRemaining -= nRows;
|
||||
curRow += nRows;
|
||||
}
|
||||
|
||||
// Reset the color image to the current framebuffer
|
||||
gDPPipeSync(gfx++);
|
||||
gDPSetColorImage(gfx++, G_IM_FMT_RGBA, G_IM_SIZ_16b, this->width, this->fbuf);
|
||||
*gfxp = gfx;
|
||||
}
|
||||
|
||||
void func_800C1E9C(PreRender* this, Gfx** gfxp) {
|
||||
/**
|
||||
* Saves zbuf to zbufSave
|
||||
*/
|
||||
void PreRender_SaveZBuffer(PreRender* this, Gfx** gfxp) {
|
||||
LogUtils_CheckNullPointer("this->zbuf_save", this->zbufSave, "../PreRender.c", 481);
|
||||
LogUtils_CheckNullPointer("this->zbuf", this->zbuf, "../PreRender.c", 482);
|
||||
|
||||
if ((this->zbufSave != NULL) && (this->zbuf != NULL)) {
|
||||
func_800C0F28(this, gfxp, this->zbuf, this->zbufSave);
|
||||
PreRender_CopyImage(this, gfxp, this->zbuf, this->zbufSave);
|
||||
}
|
||||
}
|
||||
|
||||
void func_800C1F20(PreRender* this, Gfx** gfxp) {
|
||||
/**
|
||||
* Saves fbuf to fbufSave
|
||||
*/
|
||||
void PreRender_SaveFramebuffer(PreRender* this, Gfx** gfxp) {
|
||||
LogUtils_CheckNullPointer("this->fbuf_save", this->fbufSave, "../PreRender.c", 495);
|
||||
LogUtils_CheckNullPointer("this->fbuf", this->fbuf, "../PreRender.c", 496);
|
||||
|
||||
|
|
@ -254,40 +353,71 @@ void func_800C1F20(PreRender* this, Gfx** gfxp) {
|
|||
}
|
||||
}
|
||||
|
||||
void func_800C1FA4(PreRender* this, Gfx** gfxp) {
|
||||
/**
|
||||
* Fetches the coverage of the current framebuffer into an image of the same format as the current color image, storing
|
||||
* it over the framebuffer in memory.
|
||||
*/
|
||||
void PreRender_FetchFbufCoverage(PreRender* this, Gfx** gfxp) {
|
||||
Gfx* gfx = *gfxp;
|
||||
|
||||
gDPPipeSync(gfx++);
|
||||
// Set the blend color to full white and set maximum depth
|
||||
gDPSetBlendColor(gfx++, 255, 255, 255, 8);
|
||||
gDPSetPrimDepth(gfx++, 0xFFFF, 0xFFFF);
|
||||
|
||||
// Uses G_RM_VISCVG to blit the coverage values to the framebuffer
|
||||
//
|
||||
// G_RM_VISCVG is the following special render mode:
|
||||
// IM_RD : Allow read-modify-write operations on the framebuffer
|
||||
// FORCE_BL : Apply the blender to all pixels rather than just edges
|
||||
// (G_BL_CLR_IN * G_BL_0 + G_BL_CLR_BL * G_BL_A_MEM) / (G_BL_0 + G_BL_CLR_BL) = G_BL_A_MEM
|
||||
//
|
||||
// G_BL_A_MEM ("memory alpha") is coverage, therefore this blender configuration emits only the coverage
|
||||
// and discards any pixel colors. For an RGBA16 framebuffer, each of the three color channels r,g,b will
|
||||
// receive the coverage value individually.
|
||||
//
|
||||
// Also disables other modes such as alpha compare and texture perspective correction
|
||||
gDPSetOtherMode(gfx++,
|
||||
G_AD_DISABLE | G_CD_DISABLE | G_CK_NONE | G_TC_FILT | G_TF_POINT | G_TT_NONE | G_TL_TILE |
|
||||
G_TD_CLAMP | G_TP_NONE | G_CYC_1CYCLE | G_PM_NPRIMITIVE,
|
||||
G_AC_NONE | G_ZS_PRIM | G_RM_VISCVG | G_RM_VISCVG2);
|
||||
// Set up a scissor with the same dimensions as the framebuffer
|
||||
gDPSetScissor(gfx++, G_SC_NON_INTERLACE, 0, 0, this->width, this->height);
|
||||
// Fill rectangle to obtain the coverage values as an RGBA16 image
|
||||
gDPFillRectangle(gfx++, 0, 0, this->width, this->height);
|
||||
gDPPipeSync(gfx++);
|
||||
|
||||
*gfxp = gfx;
|
||||
}
|
||||
|
||||
void func_800C20B4(PreRender* this, Gfx** gfxp) {
|
||||
func_800C1FA4(this, gfxp);
|
||||
/**
|
||||
* Draws the coverage of the current framebuffer `this->fbuf` to an I8 image at `this->cvgSave`. Overwrites
|
||||
* `this->fbuf` in the process.
|
||||
*/
|
||||
void PreRender_DrawCoverage(PreRender* this, Gfx** gfxp) {
|
||||
PreRender_FetchFbufCoverage(this, gfxp);
|
||||
LogUtils_CheckNullPointer("this->cvg_save", this->cvgSave, "../PreRender.c", 532);
|
||||
if (this->cvgSave != NULL) {
|
||||
func_800C1B24(this, gfxp, this->fbuf, this->cvgSave);
|
||||
PreRender_CoverageRgba16ToI8(this, gfxp, this->fbuf, this->cvgSave);
|
||||
}
|
||||
}
|
||||
|
||||
void func_800C2118(PreRender* this, Gfx** gfxp) {
|
||||
func_800C0F28(this, gfxp, this->zbufSave, this->zbuf);
|
||||
/**
|
||||
* Restores zbufSave to zbuf
|
||||
*/
|
||||
void PreRender_RestoreZBuffer(PreRender* this, Gfx** gfxp) {
|
||||
PreRender_CopyImage(this, gfxp, this->zbufSave, this->zbuf);
|
||||
}
|
||||
|
||||
/**
|
||||
* Draws a full-screen image to the current framebuffer, that sources the rgb channel from `this->fbufSave` and
|
||||
* the alpha channel from `this->cvgSave` modulated by environment color.
|
||||
*/
|
||||
void func_800C213C(PreRender* this, Gfx** gfxp) {
|
||||
Gfx* gfx;
|
||||
s32 y;
|
||||
s32 y2;
|
||||
s32 dy;
|
||||
s32 rowsRemaining;
|
||||
s32 curRow;
|
||||
s32 nRows;
|
||||
s32 rtile = 1;
|
||||
|
||||
if (this->cvgSave != NULL) {
|
||||
|
|
@ -298,42 +428,52 @@ void func_800C213C(PreRender* this, Gfx** gfxp) {
|
|||
|
||||
gDPPipeSync(gfx++);
|
||||
gDPSetEnvColor(gfx++, 255, 255, 255, 32);
|
||||
// Effectively disable blending in both cycles. It's 2-cycle so that TEXEL1 can be used to point to a different
|
||||
// texture tile.
|
||||
gDPSetOtherMode(gfx++,
|
||||
G_AD_DISABLE | G_CD_DISABLE | G_CK_NONE | G_TC_FILT | G_TF_POINT | G_TT_NONE | G_TL_TILE |
|
||||
G_TD_CLAMP | G_TP_NONE | G_CYC_2CYCLE | G_PM_NPRIMITIVE,
|
||||
G_AC_NONE | G_ZS_PRIM | AA_EN | CVG_DST_CLAMP | ZMODE_OPA | CVG_X_ALPHA |
|
||||
GBL_c1(G_BL_CLR_IN, G_BL_0, G_BL_CLR_IN, G_BL_1) |
|
||||
GBL_c2(G_BL_CLR_IN, G_BL_0, G_BL_CLR_IN, G_BL_1));
|
||||
|
||||
// Set up the color combiner: first cycle: TEXEL0, TEXEL1 + ENVIRONMENT; second cycle: G_CC_PASS2
|
||||
gDPSetCombineLERP(gfx++, 0, 0, 0, TEXEL0, 1, 0, TEXEL1, ENVIRONMENT, 0, 0, 0, COMBINED, 0, 0, 0, COMBINED);
|
||||
|
||||
dy = 4;
|
||||
nRows = 4;
|
||||
|
||||
y = this->height;
|
||||
y2 = 0;
|
||||
while (y > 0) {
|
||||
rowsRemaining = this->height;
|
||||
curRow = 0;
|
||||
while (rowsRemaining > 0) {
|
||||
s32 uls = 0;
|
||||
s32 lrs = this->width - 1;
|
||||
s32 ult;
|
||||
s32 lrt;
|
||||
|
||||
dy = CLAMP_MAX(dy, y);
|
||||
// Make sure that we don't load past the end of the source image
|
||||
nRows = MIN(rowsRemaining, nRows);
|
||||
|
||||
ult = y2;
|
||||
lrt = (y2 + dy - 1);
|
||||
// Determine the upper and lower bounds of the rect to draw
|
||||
ult = curRow;
|
||||
lrt = curRow + nRows - 1;
|
||||
|
||||
// Load the frame buffer line
|
||||
gDPLoadMultiTile(gfx++, this->fbufSave, 0x0000, G_TX_RENDERTILE, G_IM_FMT_RGBA, G_IM_SIZ_16b, this->width,
|
||||
this->height, uls, ult, lrs, lrt, 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);
|
||||
|
||||
// Load the coverage line
|
||||
gDPLoadMultiTile(gfx++, this->cvgSave, 0x0160, rtile, G_IM_FMT_I, G_IM_SIZ_8b, this->width, this->height,
|
||||
uls, ult, lrs, lrt, 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);
|
||||
|
||||
// Draw a texture for which the rgb channels come from the framebuffer and the alpha channel comes from
|
||||
// coverage, modulated by env color
|
||||
gSPTextureRectangle(gfx++, uls << 2, ult << 2, (lrs + 1) << 2, (lrt + 1) << 2, G_TX_RENDERTILE, uls << 5,
|
||||
ult << 5, 1 << 10, 1 << 10);
|
||||
|
||||
y -= dy;
|
||||
y2 += dy;
|
||||
rowsRemaining -= nRows;
|
||||
curRow += nRows;
|
||||
}
|
||||
|
||||
gDPPipeSync(gfx++);
|
||||
|
|
@ -341,135 +481,207 @@ void func_800C213C(PreRender* this, Gfx** gfxp) {
|
|||
}
|
||||
}
|
||||
|
||||
void func_800C24BC(PreRender* this, Gfx** gfxp) {
|
||||
func_800C0F28(this, gfxp, this->fbufSave, this->fbuf);
|
||||
/**
|
||||
* Copies fbufSave to fbuf
|
||||
*/
|
||||
void PreRender_RestoreFramebuffer(PreRender* this, Gfx** gfxp) {
|
||||
PreRender_CopyImage(this, gfxp, this->fbufSave, this->fbuf);
|
||||
}
|
||||
|
||||
void func_800C24E0(PreRender* this, Gfx** gfxp) {
|
||||
func_800C1258(this, gfxp);
|
||||
/**
|
||||
* Copies part of `this->fbufSave` in the region (this->ulx, this->uly), (this->lrx, this->lry) to the same location in
|
||||
* `this->fbuf`.
|
||||
*/
|
||||
void PreRender_CopyImageRegion(PreRender* this, Gfx** gfxp) {
|
||||
PreRender_CopyImageRegionImpl(this, gfxp);
|
||||
}
|
||||
|
||||
void func_800C2500(PreRender* this, s32 x, s32 y) {
|
||||
/**
|
||||
* Applies the Video Interface anti-aliasing of silhouette edges to an image.
|
||||
*
|
||||
* This filter performs a linear interpolation on partially covered pixels between the current pixel color (called
|
||||
* foreground color) and a "background" pixel color obtained by sampling fully covered pixels at the six highlighted
|
||||
* points in the following 5x3 neighborhood:
|
||||
* _ _ _ _ _
|
||||
* | o o |
|
||||
* | o X o |
|
||||
* | o o |
|
||||
* ‾ ‾ ‾ ‾ ‾
|
||||
* Whether a pixel is partially covered is determined by reading the coverage values associated with the image.
|
||||
* Coverage is a measure of how many subpixels the last drawn primitive covered. A fully covered pixel is one with a
|
||||
* full coverage value, the entire pixel was covered by the primitive.
|
||||
* The background color is calculated as the average of the "penultimate" minimum and maximum colors in the 5x3
|
||||
* neighborhood.
|
||||
*
|
||||
* The final color is calculated by interpolating the foreground and background color weighted by the coverage:
|
||||
* OutputColor = cvg * ForeGround + (1.0 - cvg) * BackGround
|
||||
*
|
||||
* This is a software implementation of the same algorithm used in the Video Interface hardware when Anti-Aliasing is
|
||||
* enabled in the VI Control Register.
|
||||
*
|
||||
* Patent describing the algorithm:
|
||||
*
|
||||
* Gossett, C. P., & van Hook, T. J. (Filed 1995, Published 1998)
|
||||
* Antialiasing of silhouette edges (USOO5742277A)
|
||||
* U.S. Patent and Trademark Office
|
||||
* Expired 2015-10-06
|
||||
* https://patents.google.com/patent/US5742277A/en
|
||||
*
|
||||
* @param this PreRender instance
|
||||
* @param x Center pixel x
|
||||
* @param y Center pixel y
|
||||
*/
|
||||
void PreRender_AntiAliasFilter(PreRender* this, s32 x, s32 y) {
|
||||
s32 i;
|
||||
s32 j;
|
||||
s32 buffA[3 * 5];
|
||||
s32 buffR[3 * 5];
|
||||
s32 buffG[3 * 5];
|
||||
s32 buffB[3 * 5];
|
||||
s32 x1;
|
||||
s32 y1;
|
||||
s32 buffCvg[5 * 3];
|
||||
s32 buffR[5 * 3];
|
||||
s32 buffG[5 * 3];
|
||||
s32 buffB[5 * 3];
|
||||
s32 xi;
|
||||
s32 yi;
|
||||
s32 pad;
|
||||
s32 pxR;
|
||||
s32 pxG;
|
||||
s32 pxB;
|
||||
s32 pxR2;
|
||||
s32 pxG2;
|
||||
s32 pxB2;
|
||||
s32 pmaxR;
|
||||
s32 pmaxG;
|
||||
s32 pmaxB;
|
||||
s32 pminR;
|
||||
s32 pminG;
|
||||
s32 pminB;
|
||||
Color_RGBA16 pxIn;
|
||||
Color_RGBA16 pxOut;
|
||||
u32 pxR3;
|
||||
u32 pxG3;
|
||||
u32 pxB3;
|
||||
u32 outR;
|
||||
u32 outG;
|
||||
u32 outB;
|
||||
|
||||
/*
|
||||
Picture this as a 3x5 rectangle where the middle pixel (index 7) correspond to (x, y)
|
||||
_ _ _ _ _
|
||||
| 0 1 2 3 4 |
|
||||
| 5 6 7 8 9 |
|
||||
| A B C D E |
|
||||
‾ ‾ ‾ ‾ ‾
|
||||
*/
|
||||
for (i = 0; i < 3 * 5; i++) {
|
||||
x1 = (i % 5) + x - 2;
|
||||
y1 = (i / 5) + y - 1;
|
||||
// Extract pixels in the 5x3 neighborhood
|
||||
for (i = 0; i < 5 * 3; i++) {
|
||||
xi = x + (i % 5) - 2;
|
||||
yi = y + (i / 5) - 1;
|
||||
|
||||
if (x1 < 0) {
|
||||
x1 = 0;
|
||||
} else if (x1 > (this->width - 1)) {
|
||||
x1 = this->width - 1;
|
||||
// Clamp coordinates to the edges of the image
|
||||
if (xi < 0) {
|
||||
xi = 0;
|
||||
} else if (xi > (this->width - 1)) {
|
||||
xi = this->width - 1;
|
||||
}
|
||||
if (y1 < 0) {
|
||||
y1 = 0;
|
||||
} else if (y1 > (this->height - 1)) {
|
||||
y1 = this->height - 1;
|
||||
if (yi < 0) {
|
||||
yi = 0;
|
||||
} else if (yi > (this->height - 1)) {
|
||||
yi = this->height - 1;
|
||||
}
|
||||
|
||||
pxIn.rgba = this->fbufSave[x1 + y1 * this->width];
|
||||
// Extract color channels for each pixel, convert 5-bit color channels to 8-bit
|
||||
pxIn.rgba = this->fbufSave[xi + yi * this->width];
|
||||
buffR[i] = (pxIn.r << 3) | (pxIn.r >> 2);
|
||||
buffG[i] = (pxIn.g << 3) | (pxIn.g >> 2);
|
||||
buffB[i] = (pxIn.b << 3) | (pxIn.b >> 2);
|
||||
buffA[i] = this->cvgSave[x1 + y1 * this->width] >> 5; // A
|
||||
buffCvg[i] = this->cvgSave[xi + yi * this->width] >> 5;
|
||||
}
|
||||
|
||||
if (buffA[7] == 7) {
|
||||
if (buffCvg[7] == 7) {
|
||||
osSyncPrintf("Error, should not be in here \n");
|
||||
return;
|
||||
}
|
||||
|
||||
pxR = pxR2 = buffR[7];
|
||||
pxG = pxG2 = buffG[7];
|
||||
pxB = pxB2 = buffB[7];
|
||||
pmaxR = pminR = buffR[7];
|
||||
pmaxG = pminG = buffG[7];
|
||||
pmaxB = pminB = buffB[7];
|
||||
|
||||
for (i = 1; i < 3 * 5; i += 2) {
|
||||
if (buffA[i] == 7) {
|
||||
if (pxR < buffR[i]) {
|
||||
for (j = 1; j < 15; j += 2) {
|
||||
if ((i != j) && (buffR[j] >= buffR[i]) && (buffA[j] == 7)) {
|
||||
pxR = buffR[i];
|
||||
// For each neighbor
|
||||
for (i = 1; i < 5 * 3; i += 2) {
|
||||
// Only sample fully covered pixels
|
||||
if (buffCvg[i] == 7) {
|
||||
// Determine "Penultimate Maximum" Value
|
||||
|
||||
// If current maximum is less than this neighbor
|
||||
if (pmaxR < buffR[i]) {
|
||||
// For each neighbor (again)
|
||||
for (j = 1; j < 5 * 3; j += 2) {
|
||||
// If not the neighbor we were at before, and this neighbor has a larger value and this pixel is
|
||||
// fully covered, that means the neighbor at `i` is the "penultimate maximum"
|
||||
if ((i != j) && (buffR[j] >= buffR[i]) && (buffCvg[j] == 7)) {
|
||||
pmaxR = buffR[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
if (pxG < buffG[i]) {
|
||||
for (j = 1; j < 15; j += 2) {
|
||||
if ((i != j) && (buffG[j] >= buffG[i]) && (buffA[j] == 7)) {
|
||||
pxG = buffG[i];
|
||||
if (pmaxG < buffG[i]) {
|
||||
for (j = 1; j < 5 * 3; j += 2) {
|
||||
if ((i != j) && (buffG[j] >= buffG[i]) && (buffCvg[j] == 7)) {
|
||||
pmaxG = buffG[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
if (pxB < buffB[i]) {
|
||||
for (j = 1; j < 15; j += 2) {
|
||||
if ((i != j) && (buffB[j] >= buffB[i]) && (buffA[j] == 7)) {
|
||||
pxB = buffB[i];
|
||||
if (pmaxB < buffB[i]) {
|
||||
for (j = 1; j < 5 * 3; j += 2) {
|
||||
if ((i != j) && (buffB[j] >= buffB[i]) && (buffCvg[j] == 7)) {
|
||||
pmaxB = buffB[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (1) {}
|
||||
if (pxR2 > buffR[i]) {
|
||||
for (j = 1; j < 15; j += 2) {
|
||||
if ((i != j) && (buffR[j] <= buffR[i]) && (buffA[j] == 7)) {
|
||||
pxR2 = buffR[i];
|
||||
|
||||
// Determine "Penultimate Minimum" Value
|
||||
|
||||
// Same as above with inverted conditions
|
||||
if (pminR > buffR[i]) {
|
||||
for (j = 1; j < 5 * 3; j += 2) {
|
||||
if ((i != j) && (buffR[j] <= buffR[i]) && (buffCvg[j] == 7)) {
|
||||
pminR = buffR[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
if (pxG2 > buffG[i]) {
|
||||
for (j = 1; j < 15; j += 2) {
|
||||
if ((i != j) && (buffG[j] <= buffG[i]) && (buffA[j] == 7)) {
|
||||
pxG2 = buffG[i];
|
||||
if (pminG > buffG[i]) {
|
||||
for (j = 1; j < 5 * 3; j += 2) {
|
||||
if ((i != j) && (buffG[j] <= buffG[i]) && (buffCvg[j] == 7)) {
|
||||
pminG = buffG[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
if (pxB2 > buffB[i]) {
|
||||
for (j = 1; j < 15; j += 2) {
|
||||
if ((i != j) && (buffB[j] <= buffB[i]) && (buffA[j] == 7)) {
|
||||
pxB2 = buffB[i];
|
||||
if (pminB > buffB[i]) {
|
||||
for (j = 1; j < 5 * 3; j += 2) {
|
||||
if ((i != j) && (buffB[j] <= buffB[i]) && (buffCvg[j] == 7)) {
|
||||
pminB = buffB[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pxR3 = buffR[7] + ((s32)((7 - buffA[7]) * ((pxR + pxR2) - (buffR[7] << 1)) + 4) >> 3);
|
||||
pxG3 = buffG[7] + ((s32)((7 - buffA[7]) * ((pxG + pxG2) - (buffG[7] << 1)) + 4) >> 3);
|
||||
pxB3 = buffB[7] + ((s32)((7 - buffA[7]) * ((pxB + pxB2) - (buffB[7] << 1)) + 4) >> 3);
|
||||
// The background color is determined by averaging the penultimate minimum and maximum pixels, and subtracting the
|
||||
// ForeGround color:
|
||||
// BackGround = (pMax + pMin) - (ForeGround) * 2
|
||||
|
||||
pxOut.r = pxR3 >> 3;
|
||||
pxOut.g = pxG3 >> 3;
|
||||
pxOut.b = pxB3 >> 3;
|
||||
// OutputColor = cvg * ForeGround + (1.0 - cvg) * BackGround
|
||||
outR = buffR[7] + ((s32)((7 - buffCvg[7]) * (pmaxR + pminR - (buffR[7] * 2)) + 4) >> 3);
|
||||
outG = buffG[7] + ((s32)((7 - buffCvg[7]) * (pmaxG + pminG - (buffG[7] * 2)) + 4) >> 3);
|
||||
outB = buffB[7] + ((s32)((7 - buffCvg[7]) * (pmaxB + pminB - (buffB[7] * 2)) + 4) >> 3);
|
||||
|
||||
pxOut.r = outR >> 3;
|
||||
pxOut.g = outG >> 3;
|
||||
pxOut.b = outB >> 3;
|
||||
pxOut.a = 1;
|
||||
this->fbufSave[x + y * this->width] = pxOut.rgba;
|
||||
}
|
||||
|
||||
void func_800C2FE4(PreRender* this) {
|
||||
// Selects the median value from a1, a2, a3
|
||||
#define MEDIAN3(a1, a2, a3) \
|
||||
(((a2) >= (a1)) ? (((a3) >= (a2)) ? (a2) : (((a1) >= (a3)) ? (a1) : (a3))) \
|
||||
: (((a2) >= (a3)) ? (a2) : (((a3) >= (a1)) ? (a1) : (a3))))
|
||||
|
||||
/**
|
||||
* Applies the Video Interface divot filter to an image.
|
||||
*
|
||||
* This filter removes "divots" in an anti-aliased image, single-pixel holes created when many boundary edges all
|
||||
* occupy a single pixel. The algorithm removes these by sliding a 3-pixel-wide window across each row of pixels and
|
||||
* replaces the center pixel color with the median pixel color in the window.
|
||||
*
|
||||
* This is a software implementation of the same algorithm used in the Video Interface hardware when OS_VI_DIVOT_ON is
|
||||
* set in the VI Control Register.
|
||||
*
|
||||
* @param this PreRender instance
|
||||
*/
|
||||
void PreRender_DivotFilter(PreRender* this) {
|
||||
s32 x;
|
||||
s32 y;
|
||||
s32 pad1;
|
||||
|
|
@ -482,6 +694,9 @@ void func_800C2FE4(PreRender* this) {
|
|||
s32 pxB;
|
||||
|
||||
for (y = 0; y < this->height; y++) {
|
||||
// The divot filter is applied row-by-row as it only needs to use pixels that are horizontally adjacent
|
||||
|
||||
// Decompose each pixel into color channels
|
||||
for (x = 0; x < this->width; x++) {
|
||||
Color_RGBA16 pxIn;
|
||||
|
||||
|
|
@ -491,42 +706,52 @@ void func_800C2FE4(PreRender* this) {
|
|||
buffB[x] = pxIn.b;
|
||||
}
|
||||
|
||||
// Apply the divot filter itself. For pixels with partial coverage, the filter selects the median value from a
|
||||
// window of 3 pixels in a horizontal row and uses that as the value for the center pixel.
|
||||
for (x = 1; x < this->width - 1; x++) {
|
||||
Color_RGBA16 pxOut;
|
||||
s32 a = this->cvgSave[x + y * this->width];
|
||||
s32 cvg = this->cvgSave[x + y * this->width];
|
||||
|
||||
a >>= 5;
|
||||
if (a == 7) {
|
||||
// Reject pixels with full coverage. The hardware video filter divot circuit checks if all 3 pixels in the
|
||||
// window have partial coverage, here only the center pixel is checked.
|
||||
cvg >>= 5;
|
||||
if (cvg == 7) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if (((HREG(80) == 0xF) ? HREG(81) : 0) != 0) {
|
||||
if (((HREG(80) == 0xF) ? HREG(81) : 0) != 0) {}
|
||||
// This condition is checked before entering this function, it will always pass if it runs.
|
||||
if ((HREG(80) == 15 ? HREG(81) : 0) != 0) {
|
||||
if ((HREG(80) == 15 ? HREG(81) : 0) != 0) {}
|
||||
|
||||
if (((HREG(80) == 0xF) ? HREG(81) : 0) == 5) {
|
||||
if ((HREG(80) == 15 ? HREG(81) : 0) == 5) {
|
||||
// Fill the pixel with full red, likely for debugging
|
||||
pxR = 31;
|
||||
pxG = 0;
|
||||
pxB = 0;
|
||||
} else {
|
||||
u8* temp_s0 = &buffR[x - 1];
|
||||
u8* temp_s1 = &buffG[x - 1];
|
||||
u8* temp_s2 = &buffB[x - 1];
|
||||
// Prepare sampling window
|
||||
u8* windowR = &buffR[x - 1];
|
||||
u8* windowG = &buffG[x - 1];
|
||||
u8* windowB = &buffB[x - 1];
|
||||
|
||||
if (((HREG(80) == 0xF) ? HREG(81) : 0) == 3) {
|
||||
osSyncPrintf("red=%3d %3d %3d %3d grn=%3d %3d %3d %3d blu=%3d %3d %3d %3d \n", temp_s0[0],
|
||||
temp_s0[1], temp_s0[2], MEDIAN3(temp_s0[0], temp_s0[1], temp_s0[2]), temp_s1[0],
|
||||
temp_s1[1], temp_s1[2], MEDIAN3(temp_s1[0], temp_s1[1], temp_s1[2]), temp_s2[0],
|
||||
temp_s2[1], temp_s2[2], MEDIAN3(temp_s2[0], temp_s2[1], temp_s2[2]));
|
||||
if ((HREG(80) == 15 ? HREG(81) : 0) == 3) {
|
||||
osSyncPrintf("red=%3d %3d %3d %3d grn=%3d %3d %3d %3d blu=%3d %3d %3d %3d \n", windowR[0],
|
||||
windowR[1], windowR[2], MEDIAN3(windowR[0], windowR[1], windowR[2]), windowG[0],
|
||||
windowG[1], windowG[2], MEDIAN3(windowG[0], windowG[1], windowG[2]), windowB[0],
|
||||
windowB[1], windowB[2], MEDIAN3(windowB[0], windowB[1], windowB[2]));
|
||||
}
|
||||
|
||||
if (((HREG(80) == 0xF) ? HREG(81) : 0) == 1) {
|
||||
pxR = MEDIAN3(temp_s0[0], temp_s0[1], temp_s0[2]);
|
||||
pxG = MEDIAN3(temp_s1[0], temp_s1[1], temp_s1[2]);
|
||||
pxB = MEDIAN3(temp_s2[0], temp_s2[1], temp_s2[2]);
|
||||
// Sample the median value from the 3 pixel wide window
|
||||
|
||||
// (Both blocks contain the same code)
|
||||
if ((HREG(80) == 15 ? HREG(81) : 0) == 1) {
|
||||
pxR = MEDIAN3(windowR[0], windowR[1], windowR[2]);
|
||||
pxG = MEDIAN3(windowG[0], windowG[1], windowG[2]);
|
||||
pxB = MEDIAN3(windowB[0], windowB[1], windowB[2]);
|
||||
} else {
|
||||
pxR = MEDIAN3(temp_s0[0], temp_s0[1], temp_s0[2]);
|
||||
pxG = MEDIAN3(temp_s1[0], temp_s1[1], temp_s1[2]);
|
||||
pxB = MEDIAN3(temp_s2[0], temp_s2[1], temp_s2[2]);
|
||||
pxR = MEDIAN3(windowR[0], windowR[1], windowR[2]);
|
||||
pxG = MEDIAN3(windowG[0], windowG[1], windowG[2]);
|
||||
pxB = MEDIAN3(windowB[0], windowB[1], windowB[2]);
|
||||
}
|
||||
}
|
||||
pxOut.r = pxR;
|
||||
|
|
@ -539,26 +764,32 @@ void func_800C2FE4(PreRender* this) {
|
|||
}
|
||||
}
|
||||
|
||||
void PreRender_Calc(PreRender* this) {
|
||||
/**
|
||||
* Applies the Video Interface anti-aliasing filter and (optionally) the divot filter to `this->fbufSave` using
|
||||
* `this->cvgSave`
|
||||
*/
|
||||
void PreRender_ApplyFilters(PreRender* this) {
|
||||
s32 x;
|
||||
s32 y;
|
||||
|
||||
if ((this->cvgSave != NULL) && (this->fbufSave != NULL)) {
|
||||
|
||||
// Apply AA filter
|
||||
for (y = 0; y < this->height; y++) {
|
||||
for (x = 0; x < this->width; x++) {
|
||||
s32 a = this->cvgSave[x + y * this->width];
|
||||
s32 cvg = this->cvgSave[x + y * this->width];
|
||||
|
||||
a >>= 5;
|
||||
a++;
|
||||
if (a != 8) {
|
||||
func_800C2500(this, x, y);
|
||||
cvg >>= 5;
|
||||
cvg++;
|
||||
if (cvg != 8) {
|
||||
// If this pixel has only partial coverage, perform the Video Filter interpolation on it
|
||||
PreRender_AntiAliasFilter(this, x, y);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (HREG(80) == 0xF ? HREG(81) : 0) {
|
||||
func_800C2FE4(this);
|
||||
if ((HREG(80) == 15 ? HREG(81) : 0) != 0) {
|
||||
// Apply divot filter
|
||||
PreRender_DivotFilter(this);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -357,8 +357,8 @@ void Play_Init(GameState* thisx) {
|
|||
SREG(91) = -1;
|
||||
R_PAUSE_MENU_MODE = 0;
|
||||
PreRender_Init(&this->pauseBgPreRender);
|
||||
PreRender_SetValuesSave(&this->pauseBgPreRender, SCREEN_WIDTH, SCREEN_HEIGHT, 0, 0, 0);
|
||||
PreRender_SetValues(&this->pauseBgPreRender, SCREEN_WIDTH, SCREEN_HEIGHT, 0, 0);
|
||||
PreRender_SetValuesSave(&this->pauseBgPreRender, SCREEN_WIDTH, SCREEN_HEIGHT, NULL, NULL, NULL);
|
||||
PreRender_SetValues(&this->pauseBgPreRender, SCREEN_WIDTH, SCREEN_HEIGHT, NULL, NULL);
|
||||
gTrnsnUnkState = 0;
|
||||
this->transitionMode = TRANS_MODE_OFF;
|
||||
FrameAdvance_Init(&this->frameAdvCtx);
|
||||
|
|
@ -1112,7 +1112,7 @@ void Play_Draw(PlayState* this) {
|
|||
|
||||
if (R_PAUSE_MENU_MODE == 2) {
|
||||
Sched_FlushTaskQueue();
|
||||
PreRender_Calc(&this->pauseBgPreRender);
|
||||
PreRender_ApplyFilters(&this->pauseBgPreRender);
|
||||
R_PAUSE_MENU_MODE = 3;
|
||||
} else if (R_PAUSE_MENU_MODE >= 4) {
|
||||
R_PAUSE_MENU_MODE = 0;
|
||||
|
|
@ -1121,7 +1121,7 @@ void Play_Draw(PlayState* this) {
|
|||
if (R_PAUSE_MENU_MODE == 3) {
|
||||
Gfx* sp84 = POLY_OPA_DISP;
|
||||
|
||||
func_800C24BC(&this->pauseBgPreRender, &sp84);
|
||||
PreRender_RestoreFramebuffer(&this->pauseBgPreRender, &sp84);
|
||||
POLY_OPA_DISP = sp84;
|
||||
goto Play_Draw_DrawOverlayElements;
|
||||
} else {
|
||||
|
|
@ -1238,10 +1238,10 @@ void Play_Draw(PlayState* this) {
|
|||
|
||||
this->pauseBgPreRender.fbuf = gfxCtx->curFrameBuffer;
|
||||
this->pauseBgPreRender.fbufSave = (u16*)gZBuffer;
|
||||
func_800C1F20(&this->pauseBgPreRender, &sp70);
|
||||
PreRender_SaveFramebuffer(&this->pauseBgPreRender, &sp70);
|
||||
if (R_PAUSE_MENU_MODE == 1) {
|
||||
this->pauseBgPreRender.cvgSave = (u8*)gfxCtx->curFrameBuffer;
|
||||
func_800C20B4(&this->pauseBgPreRender, &sp70);
|
||||
PreRender_DrawCoverage(&this->pauseBgPreRender, &sp70);
|
||||
R_PAUSE_MENU_MODE = 2;
|
||||
} else {
|
||||
gTrnsnUnkState = 2;
|
||||
|
|
|
|||
|
|
@ -244,8 +244,8 @@ void KaleidoScope_SetupPlayerPreRender(PlayState* play) {
|
|||
gSPDisplayList(WORK_DISP++, gfx);
|
||||
|
||||
PreRender_SetValues(&sPlayerPreRender, PAUSE_EQUIP_PLAYER_WIDTH, PAUSE_EQUIP_PLAYER_HEIGHT, fbuf, NULL);
|
||||
func_800C1F20(&sPlayerPreRender, &gfx);
|
||||
func_800C20B4(&sPlayerPreRender, &gfx);
|
||||
PreRender_SaveFramebuffer(&sPlayerPreRender, &gfx);
|
||||
PreRender_DrawCoverage(&sPlayerPreRender, &gfx);
|
||||
|
||||
gSPEndDisplayList(gfx++);
|
||||
Graph_BranchDlist(gfxRef, gfx);
|
||||
|
|
@ -258,7 +258,7 @@ void KaleidoScope_SetupPlayerPreRender(PlayState* play) {
|
|||
|
||||
void KaleidoScope_ProcessPlayerPreRender(void) {
|
||||
Sleep_Msec(50);
|
||||
PreRender_Calc(&sPlayerPreRender);
|
||||
PreRender_ApplyFilters(&sPlayerPreRender);
|
||||
PreRender_Destroy(&sPlayerPreRender);
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue