mirror of
https://github.com/hrydgard/ppsspp.git
synced 2025-04-02 11:01:50 -04:00
772f9cc585
Fixes (but not perfectly) games that make simple use of splines like LocoRoco. (The locos are a little jagged)
445 lines
12 KiB
C++
445 lines
12 KiB
C++
// Copyright (c) 2012- PPSSPP Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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#pragma once
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#include "../GPUState.h"
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#include "../Globals.h"
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#include "base/basictypes.h"
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#include "Core/Reporting.h"
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// DecVtxFormat - vertex formats for PC
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// Kind of like a D3D VertexDeclaration.
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// Can write code to easily bind these using OpenGL, or read these manually.
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// No morph support, that is taken care of by the VertexDecoder.
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enum {
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DEC_NONE,
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DEC_FLOAT_1,
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DEC_FLOAT_2,
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DEC_FLOAT_3,
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DEC_FLOAT_4,
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DEC_S8_3,
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DEC_S16_3,
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DEC_U8_1,
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DEC_U8_2,
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DEC_U8_3,
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DEC_U8_4,
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DEC_U16_1,
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DEC_U16_2,
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DEC_U16_3,
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DEC_U16_4,
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DEC_U8A_2,
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DEC_U16A_2,
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};
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int DecFmtSize(u8 fmt);
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struct DecVtxFormat {
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u8 w0fmt; u8 w0off; // first 4 weights
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u8 w1fmt; u8 w1off; // second 4 weights
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u8 uvfmt; u8 uvoff;
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u8 c0fmt; u8 c0off; // First color
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u8 c1fmt; u8 c1off;
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u8 nrmfmt; u8 nrmoff;
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u8 posfmt; u8 posoff;
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short stride;
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};
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// This struct too.
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struct TransformedVertex
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{
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float x, y, z, fog; // in case of morph, preblend during decode
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float u; float v; float w; // scaled by uscale, vscale, if there
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u8 color0[4]; // prelit
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u8 color1[3]; // prelit
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};
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DecVtxFormat GetTransformedVtxFormat(const DecVtxFormat &fmt);
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class VertexDecoder;
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typedef void (VertexDecoder::*StepFunction)() const;
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void GetIndexBounds(void *inds, int count, u32 vertType, u16 *indexLowerBound, u16 *indexUpperBound);
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enum {
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STAT_VERTSSUBMITTED = 0,
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NUM_VERTEX_DECODER_STATS = 1
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};
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// Right now
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// - compiles into list of called functions
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// Future TODO
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// - will compile into lighting fast specialized x86 and ARM
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class VertexDecoder
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{
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public:
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VertexDecoder() : coloff(0), nrmoff(0), posoff(0) {}
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~VertexDecoder() {}
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// prim is needed knowledge for a performance hack (PrescaleUV)
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void SetVertexType(u32 vtype);
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u32 VertexType() const { return fmt_; }
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const DecVtxFormat &GetDecVtxFmt() { return decFmt; }
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void DecodeVerts(u8 *decoded, const void *verts, int indexLowerBound, int indexUpperBound) const;
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// This could be easily generalized to inject any one component. Don't know another use for it though.
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u32 InjectUVs(u8 *decoded, const void *verts, float *customuv, int count) const;
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bool hasColor() const { return col != 0; }
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int VertexSize() const { return size; } // PSP format size
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void Step_WeightsU8() const;
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void Step_WeightsU16() const;
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void Step_WeightsFloat() const;
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void Step_TcU8() const;
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void Step_TcU16() const;
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void Step_TcFloat() const;
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void Step_TcU8Prescale() const;
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void Step_TcU16Prescale() const;
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void Step_TcFloatPrescale() const;
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void Step_TcU16Double() const;
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void Step_TcU16Through() const;
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void Step_TcU16ThroughDouble() const;
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void Step_TcFloatThrough() const;
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// TODO: tcmorph
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void Step_Color4444() const;
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void Step_Color565() const;
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void Step_Color5551() const;
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void Step_Color8888() const;
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void Step_Color4444Morph() const;
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void Step_Color565Morph() const;
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void Step_Color5551Morph() const;
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void Step_Color8888Morph() const;
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void Step_NormalS8() const;
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void Step_NormalS16() const;
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void Step_NormalFloat() const;
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void Step_NormalS8Morph() const;
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void Step_NormalS16Morph() const;
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void Step_NormalFloatMorph() const;
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void Step_PosS8() const;
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void Step_PosS16() const;
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void Step_PosFloat() const;
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void Step_PosS8Morph() const;
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void Step_PosS16Morph() const;
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void Step_PosFloatMorph() const;
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void Step_PosS8Through() const;
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void Step_PosS16Through() const;
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void Step_PosFloatThrough() const;
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void ResetStats() {
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memset(stats_, 0, sizeof(stats_));
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}
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void IncrementStat(int stat, int amount) {
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stats_[stat] += amount;
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}
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// output must be big for safety.
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// Returns number of chars written.
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// Ugly for speed.
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int ToString(char *output) const;
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// Mutable decoder state
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mutable u8 *decoded_;
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mutable const u8 *ptr_;
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// "Immutable" state, set at startup
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// The decoding steps
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StepFunction steps_[5];
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int numSteps_;
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u32 fmt_;
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DecVtxFormat decFmt;
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bool throughmode;
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int biggest;
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int size;
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int onesize_;
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int weightoff;
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int tcoff;
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int coloff;
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int nrmoff;
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int posoff;
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int tc;
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int col;
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int nrm;
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int pos;
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int weighttype;
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int idx;
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int morphcount;
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int nweights;
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int stats_[NUM_VERTEX_DECODER_STATS];
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};
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// Reads decoded vertex formats in a convenient way. For software transform and debugging.
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class VertexReader
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{
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public:
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VertexReader(u8 *base, const DecVtxFormat &decFmt, int vtype) : base_(base), data_(base), decFmt_(decFmt), vtype_(vtype) {}
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void ReadPos(float pos[3]) const {
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switch (decFmt_.posfmt) {
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case DEC_FLOAT_3:
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{
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const float *f = (const float *)(data_ + decFmt_.posoff);
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memcpy(pos, f, 12);
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if (isThrough()) {
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// Integer value passed in a float. Wraps and all, required for Monster Hunter.
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pos[2] = (float)((u16)(s32)pos[2]) * (1.0f / 65535.0f);
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}
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}
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break;
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case DEC_S16_3:
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{
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// X and Y are signed 16 bit, Z is unsigned 16 bit
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const s16 *s = (const s16 *)(data_ + decFmt_.posoff);
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const u16 *u = (const u16 *)(data_ + decFmt_.posoff);
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if (isThrough()) {
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for (int i = 0; i < 2; i++)
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pos[i] = s[i];
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pos[2] = u[2] * (1.0f / 65535.0f);
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} else {
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for (int i = 0; i < 3; i++)
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pos[i] = s[i] * (1.f / 32767.f);
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}
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}
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break;
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case DEC_S8_3:
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{
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// X and Y are signed 8 bit, Z is unsigned 8 bit
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const s8 *b = (const s8 *)(data_ + decFmt_.posoff);
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const u8 *u = (const u8 *)(data_ + decFmt_.posoff);
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if (isThrough()) {
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for (int i = 0; i < 2; i++)
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pos[i] = b[i];
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pos[2] = u[2] / 255.0f;
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} else {
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for (int i = 0; i < 3; i++)
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pos[i] = b[i] * (1.f / 127.f);
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}
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}
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break;
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default:
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ERROR_LOG_REPORT_ONCE(fmt, G3D, "Reader: Unsupported Pos Format %d", decFmt_.posfmt);
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memset(pos, 0, sizeof(float) * 3);
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break;
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}
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}
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void ReadNrm(float nrm[3]) const {
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switch (decFmt_.nrmfmt) {
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case DEC_FLOAT_3:
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//memcpy(nrm, data_ + decFmt_.nrmoff, 12);
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{
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const float *f = (const float *)(data_ + decFmt_.nrmoff);
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for (int i = 0; i < 3; i++)
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nrm[i] = f[i];
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}
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break;
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case DEC_S16_3:
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{
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const s16 *s = (const s16 *)(data_ + decFmt_.nrmoff);
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for (int i = 0; i < 3; i++)
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nrm[i] = s[i] * (1.f / 32767.f);
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}
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break;
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case DEC_S8_3:
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{
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const s8 *b = (const s8 *)(data_ + decFmt_.nrmoff);
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for (int i = 0; i < 3; i++)
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nrm[i] = b[i] * (1.f / 127.f);
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}
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break;
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default:
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ERROR_LOG_REPORT_ONCE(fmt, G3D, "Reader: Unsupported Nrm Format %d", decFmt_.nrmfmt);
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memset(nrm, 0, sizeof(float) * 3);
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break;
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}
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}
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void ReadUV(float uv[2]) const {
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switch (decFmt_.uvfmt) {
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case DEC_U8_2:
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{
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const u8 *b = (const u8 *)(data_ + decFmt_.uvoff);
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uv[0] = b[0] * (1.f / 128.f);
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uv[1] = b[1] * (1.f / 128.f);
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}
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break;
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case DEC_U16_2:
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{
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const u16 *s = (const u16 *)(data_ + decFmt_.uvoff);
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uv[0] = s[0] * (1.f / 32768.f);
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uv[1] = s[1] * (1.f / 32768.f);
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}
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break;
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case DEC_FLOAT_2:
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{
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const float *f = (const float *)(data_ + decFmt_.uvoff);
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uv[0] = f[0];
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uv[1] = f[1];
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}
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break;
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case DEC_U16A_2:
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{
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const u16 *p = (const u16 *)(data_ + decFmt_.uvoff);
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uv[0] = (float)p[0];
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uv[1] = (float)p[1];
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}
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break;
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default:
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ERROR_LOG_REPORT_ONCE(fmt, G3D, "Reader: Unsupported UV Format %d", decFmt_.uvfmt);
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memset(uv, 0, sizeof(float) * 2);
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break;
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}
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}
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void ReadColor0(float color[4]) const {
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switch (decFmt_.c0fmt) {
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case DEC_U8_4:
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{
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const u8 *b = (const u8 *)(data_ + decFmt_.c0off);
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for (int i = 0; i < 4; i++)
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color[i] = b[i] * (1.f / 255.f);
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}
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break;
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case DEC_FLOAT_4:
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memcpy(color, data_ + decFmt_.c0off, 16);
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break;
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default:
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ERROR_LOG_REPORT_ONCE(fmt, G3D, "Reader: Unsupported C0 Format %d", decFmt_.c0fmt);
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memset(color, 0, sizeof(float) * 4);
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break;
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}
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}
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void ReadColor1(float color[3]) const {
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switch (decFmt_.c1fmt) {
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case DEC_U8_4:
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{
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const u8 *b = (const u8 *)(data_ + decFmt_.c1off);
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for (int i = 0; i < 3; i++)
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color[i] = b[i] * (1.f / 255.f);
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}
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break;
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case DEC_FLOAT_4:
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memcpy(color, data_ + decFmt_.c1off, 12);
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break;
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default:
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ERROR_LOG_REPORT_ONCE(fmt, G3D, "Reader: Unsupported C1 Format %d", decFmt_.c0fmt);
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memset(color, 0, sizeof(float) * 3);
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break;
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}
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}
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void ReadWeights(float weights[8]) const {
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const float *f = (const float *)(data_ + decFmt_.w0off);
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const u8 *b = (const u8 *)(data_ + decFmt_.w0off);
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const u16 *s = (const u16 *)(data_ + decFmt_.w0off);
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switch (decFmt_.w0fmt) {
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case DEC_FLOAT_1:
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case DEC_FLOAT_2:
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case DEC_FLOAT_3:
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case DEC_FLOAT_4:
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for (int i = 0; i <= decFmt_.w0fmt - DEC_FLOAT_1; i++)
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weights[i] = f[i];
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break;
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case DEC_U8_1: weights[0] = b[0] * (1.f / 128.f); break;
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case DEC_U8_2: for (int i = 0; i < 2; i++) weights[i] = b[i] * (1.f / 128.f); break;
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case DEC_U8_3: for (int i = 0; i < 3; i++) weights[i] = b[i] * (1.f / 128.f); break;
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case DEC_U8_4: for (int i = 0; i < 4; i++) weights[i] = b[i] * (1.f / 128.f); break;
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case DEC_U16_1: weights[0] = s[0] * (1.f / 32768.f); break;
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case DEC_U16_2: for (int i = 0; i < 2; i++) weights[i] = s[i] * (1.f / 32768.f); break;
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case DEC_U16_3: for (int i = 0; i < 3; i++) weights[i] = s[i] * (1.f / 32768.f); break;
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case DEC_U16_4: for (int i = 0; i < 4; i++) weights[i] = s[i] * (1.f / 32768.f); break;
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default:
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ERROR_LOG_REPORT_ONCE(fmt0, G3D, "Reader: Unsupported W0 Format %d", decFmt_.w0fmt);
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memset(weights, 0, sizeof(float) * 4);
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break;
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}
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f = (const float *)(data_ + decFmt_.w1off);
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b = (const u8 *)(data_ + decFmt_.w1off);
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s = (const u16 *)(data_ + decFmt_.w1off);
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switch (decFmt_.w1fmt) {
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case 0:
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// It's fine for there to be w0 weights but not w1.
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break;
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case DEC_FLOAT_1:
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case DEC_FLOAT_2:
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case DEC_FLOAT_3:
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case DEC_FLOAT_4:
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for (int i = 0; i <= decFmt_.w1fmt - DEC_FLOAT_1; i++)
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weights[i+4] = f[i];
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break;
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case DEC_U8_1: weights[4] = b[0] * (1.f / 128.f); break;
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case DEC_U8_2: for (int i = 0; i < 2; i++) weights[i+4] = b[i] * (1.f / 128.f); break;
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case DEC_U8_3: for (int i = 0; i < 3; i++) weights[i+4] = b[i] * (1.f / 128.f); break;
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case DEC_U8_4: for (int i = 0; i < 4; i++) weights[i+4] = b[i] * (1.f / 128.f); break;
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case DEC_U16_1: weights[4] = s[0] * (1.f / 32768.f); break;
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case DEC_U16_2: for (int i = 0; i < 2; i++) weights[i+4] = s[i] * (1.f / 32768.f); break;
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case DEC_U16_3: for (int i = 0; i < 3; i++) weights[i+4] = s[i] * (1.f / 32768.f); break;
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case DEC_U16_4: for (int i = 0; i < 4; i++) weights[i+4] = s[i] * (1.f / 32768.f); break;
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default:
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ERROR_LOG_REPORT_ONCE(fmt1, G3D, "Reader: Unsupported W1 Format %d", decFmt_.w1fmt);
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memset(weights + 4, 0, sizeof(float) * 4);
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break;
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}
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}
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bool hasColor0() const { return decFmt_.c0fmt != 0; }
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bool hasColor1() const { return decFmt_.c1fmt != 0; }
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bool hasNormal() const { return decFmt_.nrmfmt != 0; }
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bool hasUV() const { return decFmt_.uvfmt != 0; }
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bool isThrough() const { return (vtype_ & GE_VTYPE_THROUGH) != 0; }
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void Goto(int index) {
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data_ = base_ + index * decFmt_.stride;
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}
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private:
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u8 *base_;
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u8 *data_;
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DecVtxFormat decFmt_;
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int vtype_;
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};
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// Debugging utilities
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void PrintDecodedVertex(VertexReader &vtx);
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