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93 lines
3.5 KiB
C++
93 lines
3.5 KiB
C++
// Copyright (c) 2013- 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 <vector>
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#include "Common/CommonTypes.h"
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#include "Common/Math/lin/matrix4x4.h"
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#include "GPU/Common/VertexDecoderCommon.h"
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#include "GPU/Common/TransformCommon.h"
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class FramebufferManagerCommon;
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class TextureCacheCommon;
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enum SoftwareTransformAction {
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SW_NOT_READY,
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SW_DRAW_INDEXED,
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SW_CLEAR,
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};
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struct SoftwareTransformResult {
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SoftwareTransformAction action;
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u32 color;
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float depth;
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bool setStencil;
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u8 stencilValue;
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bool setSafeSize;
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u32 safeWidth;
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u32 safeHeight;
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TransformedVertex *drawBuffer;
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int drawNumTrans;
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bool pixelMapped;
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};
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struct SoftwareTransformParams {
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u8 *decoded;
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TransformedVertex *transformed;
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TransformedVertex *transformedExpanded;
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FramebufferManagerCommon *fbman;
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TextureCacheCommon *texCache;
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bool allowClear;
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bool allowSeparateAlphaClear;
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bool flippedY;
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bool usesHalfZ;
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};
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// Converts an index buffer to make the provoking vertex the last.
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// In-place. So, better not be doing this on GPU memory!
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// TODO: We could do this already during index decode.
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void IndexBufferProvokingLastToFirst(int prim, u16 *inds, int indsSize);
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class SoftwareTransform {
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public:
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SoftwareTransform(SoftwareTransformParams ¶ms) : params_(params) {}
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void SetProjMatrix(const float mtx[14], bool invertedX, bool invertedY, const Lin::Vec3 &trans, const Lin::Vec3 &scale);
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void Transform(int prim, u32 vertexType, const DecVtxFormat &decVtxFormat, int numDecodedVerts, SoftwareTransformResult *result);
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// NOTE: The viewport must be up to date!
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// indsSize is in indices, not bytes.
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void BuildDrawingParams(int prim, int vertexCount, u32 vertType, u16 *&inds, int indsSize, int &numDecodedVerts, int vertsSize, SoftwareTransformResult *result);
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protected:
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void CalcCullParams(float &minZValue, float &maxZValue) const;
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bool ExpandRectangles(int vertexCount, int &numDecodedVerts, int vertsSize, u16 *&inds, int indsSize, const TransformedVertex *transformed, TransformedVertex *transformedExpanded, int &numTrans, bool throughmode, bool *pixelMappedExactly) const;
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static bool ExpandLines(int vertexCount, int &numDecodedVerts, int vertsSize, u16 *&inds, int indsSize, const TransformedVertex *transformed, TransformedVertex *transformedExpanded, int &numTrans, bool throughmode) ;
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static bool ExpandPoints(int vertexCount, int &numDecodedVerts, int vertsSize, u16 *&inds, int indsSize, const TransformedVertex *transformed, TransformedVertex *transformedExpanded, int &numTrans, bool throughmode) ;
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const SoftwareTransformParams ¶ms_;
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Lin::Matrix4x4 projMatrix_;
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};
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// Slow. See description in the cpp file.
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u32 NormalizeVertices(SimpleVertex *sverts, u8 *bufPtr, const u8 *inPtr, int lowerBound, int upperBound, VertexDecoder *dec, u32 vertType);
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bool GetCurrentDrawAsDebugVertices(DrawEngineCommon *drawEngine, int count, std::vector<GPUDebugVertex> &vertices, std::vector<u16> &indices);
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