mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-11-05 20:41:06 +00:00
e61e77fb82
This should complete the transition and allow storing the render state in an array so that Polymost can be rewritten to create draw lists instead of actually doing the rendering itself.
565 lines
12 KiB
C++
565 lines
12 KiB
C++
#pragma once
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#include <stdlib.h>
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#include <algorithm>
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#include <vector>
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#include <map>
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#include "gl_samplers.h"
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#include "gl_hwtexture.h"
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#include "gl_renderstate.h"
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#include "matrix.h"
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#include "palentry.h"
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#include "renderstyle.h"
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class FSamplerManager;
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class FShader;
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class PolymostShader;
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class SurfaceShader;
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class FTexture;
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class GLInstance;
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class F2DDrawer;
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struct palette_t;
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extern int xdim, ydim;
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struct PaletteData
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{
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int32_t crc32;
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PalEntry colors[256];
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bool shadesdone;
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int whiteindex, blackindex;
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FHardwareTexture* paltexture;
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};
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struct PalShade
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{
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int palindex;
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float mulshade, addshade;
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};
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struct PalswapData
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{
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int32_t crc32;
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bool isbright;
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const uint8_t *lookup; // points to the original data. This is static so no need to copy
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FHardwareTexture* swaptexture;
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PalEntry fadeColor;
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uint8_t brightcolors[255];
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};
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enum
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{
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PALSWAP_TEXTURE_SIZE = 2048
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};
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class PaletteManager
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{
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// The current engine limit is 256 palettes and 256 palswaps.
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uint32_t palettemap[256] = {};
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uint32_t palswapmap[256] = {};
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float addshade[256] = {};
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float mulshade[256] = {};
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uint32_t lastindex = ~0u;
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uint32_t lastsindex = ~0u;
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int numshades = 1;
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// All data is being stored in contiguous blocks that can be used as uniform buffers as-is.
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TArray<PaletteData> palettes;
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TArray<PalswapData> palswaps;
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TMap<int, int> swappedpalmap;
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FHardwareTexture* palswapTexture = nullptr;
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GLInstance* const inst;
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//OpenGLRenderer::GLDataBuffer* palswapBuffer = nullptr;
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unsigned FindPalswap(const uint8_t* paldata, palette_t& fadecolor);
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public:
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PaletteManager(GLInstance *inst_) : inst(inst_)
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{}
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~PaletteManager();
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void DeleteAll();
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void DeleteAllTextures();
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void SetPalette(int index, const uint8_t *data);
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void SetPalswapData(int index, const uint8_t* data, int numshades, palette_t &fadecolor);
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void BindPalette(int index);
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void BindPalswap(int index);
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int ActivePalswap() const { return lastsindex; }
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int LookupPalette(int palette, int palswap, bool brightmap, bool nontransparent255 = false);
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const PalEntry *GetPaletteData(int palid) const { return palettes[palid].colors; }
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unsigned FindPalette(const uint8_t* paldata);
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};
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struct glinfo_t {
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float maxanisotropy;
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};
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struct BaseVertex
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{
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float x, y, z;
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float u, v;
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void SetVertex(float _x, float _y, float _z = 0)
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{
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x = _x;
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y = _y;
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z = _z;
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}
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void SetTexCoord(float _u = 0, float _v = 0)
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{
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u = _u;
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v = _v;
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}
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void Set(float _x, float _y, float _z = 0, float _u = 0, float _v = 0)
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{
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x = _x;
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y = _y;
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z = _z;
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u = _u;
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v = _v;
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}
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};
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enum EDrawType
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{
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DT_TRIANGLES,
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DT_TRIANGLE_STRIP,
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DT_TRIANGLE_FAN,
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DT_LINES
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};
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enum ECull
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{
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Cull_None,
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Cull_Front,
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Cull_Back
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};
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enum EDepthFunc
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{
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Depth_Always,
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Depth_Less,
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Depth_Equal,
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Depth_LessEqual
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};
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enum EWinding
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{
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Winding_CCW,
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Winding_CW
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};
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enum ETexType
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{
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TT_INDEXED,
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TT_TRUECOLOR,
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TT_HICREPLACE,
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TT_BRIGHTMAP
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};
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struct ImDrawData;
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struct palette_t;
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extern float shadediv[256];
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struct GLState
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{
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int Flags = STF_COLORMASK | STF_DEPTHMASK;
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FRenderStyle Style{};
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int DepthFunc = -1;
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int TexId[5] = {}, SamplerId[5] = {};
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};
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class GLInstance
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{
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enum
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{
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MAX_TEXTURES = 5, /*15*/ // slot 15 is used internally and not available. - The renderer uses only 5, though.
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};
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std::vector<BaseVertex> Buffer; // cheap-ass implementation. The primary purpose is to get the GL accesses out of polymost.cpp, not writing something performant right away.
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int maxTextureSize;
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PaletteManager palmanager;
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int lastPalswapIndex = -1;
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FHardwareTexture* texv;
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FTexture* currentTexture = nullptr;
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int TextureType;
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int MatrixChange = 0;
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bool g_nontransparent255 = false; // Ugh... This is for movie playback and needs to be maintained as global state.
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// Cached GL state.
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GLState lastState;
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IVertexBuffer* LastVertexBuffer = nullptr;
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int LastVB_Offset[2] = {};
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IIndexBuffer* LastIndexBuffer = nullptr;
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float mProjectionM5 = 1.0f; // needed by ssao
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PolymostRenderState renderState;
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FShader* activeShader;
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PolymostShader* polymostShader;
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SurfaceShader* surfaceShader;
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FShader* vpxShader;
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public:
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glinfo_t glinfo;
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FSamplerManager *mSamplers;
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void Init(int y);
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void InitGLState(int fogmode, int multisample);
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void LoadPolymostShader();
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void LoadSurfaceShader();
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void LoadVPXShader();
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void Draw2D(F2DDrawer* drawer);
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void DrawImGui(ImDrawData*);
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void Deinit();
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static int GetTexDimension(int value)
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{
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//if (value > gl.max_texturesize) return gl.max_texturesize;
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return value;
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}
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GLInstance();
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std::pair<size_t, BaseVertex *> AllocVertices(size_t num);
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void Draw(EDrawType type, size_t start, size_t count);
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FHardwareTexture* NewTexture();
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void EnableNonTransparent255(bool on)
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{
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g_nontransparent255 = on;
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}
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void SetVertexBuffer(IVertexBuffer* vb, int offset1, int offset2)
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{
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renderState.VertexBuffer = vb;
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renderState.VB_Offset[0] = offset1;
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renderState.VB_Offset[1] = offset2;
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}
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void SetIndexBuffer(IIndexBuffer* vb)
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{
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renderState.IndexBuffer = vb;
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}
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void ClearBufferState()
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{
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SetVertexBuffer(nullptr, 0, 0);
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SetIndexBuffer(nullptr);
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// Invalidate the pointers as well to make sure that if another buffer with the same address is used it actually gets bound.
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LastVertexBuffer = (IVertexBuffer*)~intptr_t(0);
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LastIndexBuffer = (IIndexBuffer*)~intptr_t(0);
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}
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float GetProjectionM5() { return mProjectionM5; }
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void SetMatrix(int num, const VSMatrix *mat );
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void SetMatrix(int num, const float *mat)
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{
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SetMatrix(num, reinterpret_cast<const VSMatrix*>(mat));
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}
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void SetIdentityMatrix(int num)
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{
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renderState.matrixIndex[num] = 0;
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}
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void SetPolymostShader();
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void SetSurfaceShader();
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void SetVPXShader();
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void SetPalette(int palette);
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void ReadPixels(int w, int h, uint8_t* buffer);
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void SetPaletteData(int index, const uint8_t* data)
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{
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palmanager.SetPalette(index, data);
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}
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void SetPalswapData(int index, const uint8_t* data, int numshades, palette_t& fadecolor)
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{
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palmanager.SetPalswapData(index, data, numshades, fadecolor);
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}
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void SetPalswap(int index);
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int GetClamp()
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{
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return 0;// int(renderState.Clamp[0] + 2 * renderState.Clamp[1]);
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}
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void SetClamp(int clamp)
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{
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// This option is totally pointless and should be removed.
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//renderState.Clamp[0] = clamp & 1;
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//renderState.Clamp[1] = !!(clamp & 2);
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}
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void SetShade(int32_t shade, int numshades)
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{
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renderState.Shade = shade;
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renderState.NumShades = numshades;
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}
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void SetVisibility(float visibility, float fviewingrange)
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{
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renderState.VisFactor = visibility* fviewingrange* (1.f / (64.f * 65536.f));
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}
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void EnableBlend(bool on)
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{
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if (on) renderState.StateFlags |= STF_BLEND;
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else renderState.StateFlags &= ~STF_BLEND;
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}
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void EnableDepthTest(bool on)
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{
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if (on) renderState.StateFlags |= STF_DEPTHTEST;
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else renderState.StateFlags &= ~STF_DEPTHTEST;
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}
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void EnableMultisampling(bool on)
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{
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if (on) renderState.StateFlags |= STF_MULTISAMPLE;
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else renderState.StateFlags &= ~STF_MULTISAMPLE;
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}
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void EnableStencilWrite(int value)
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{
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renderState.StateFlags |= STF_STENCILWRITE;
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renderState.StateFlags &= ~STF_STENCILTEST;
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}
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void EnableStencilTest(int value)
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{
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renderState.StateFlags &= ~STF_STENCILWRITE;
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renderState.StateFlags |= STF_STENCILTEST;
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}
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void DisableStencil()
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{
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renderState.StateFlags &= ~(STF_STENCILWRITE | STF_STENCILTEST);
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}
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void SetCull(int type, int winding = Winding_CW)
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{
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renderState.StateFlags &= ~(STF_CULLCCW | STF_CULLCW);
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if (type != Cull_None)
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{
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if (winding == Winding_CW) renderState.StateFlags |= STF_CULLCW;
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else renderState.StateFlags |= STF_CULLCCW;
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}
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}
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void SetColorMask(bool on)
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{
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if (on) renderState.StateFlags |= STF_COLORMASK;
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else renderState.StateFlags &= ~STF_COLORMASK;
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}
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void SetDepthMask(bool on)
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{
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if (on) renderState.StateFlags |= STF_DEPTHMASK;
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else renderState.StateFlags &= ~STF_DEPTHMASK;
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}
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void SetWireframe(bool on)
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{
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if (on) renderState.StateFlags |= STF_WIREFRAME;
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else renderState.StateFlags &= ~STF_WIREFRAME;
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}
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void ClearScreen(PalEntry pe, bool depth)
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{
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renderState.ClearColor = pe;
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renderState.StateFlags |= STF_CLEARCOLOR;
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if (depth) renderState.StateFlags |= STF_CLEARDEPTH;
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}
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void SetViewport(int x, int y, int w, int h)
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{
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renderState.vp_x = (short)x;
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renderState.vp_y = (short)y;
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renderState.vp_w = (short)w;
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renderState.vp_h = (short)h;
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renderState.StateFlags |= STF_VIEWPORTSET;
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}
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void SetScissor(int x1, int y1, int x2, int y2)
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{
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renderState.sc_x = (short)x1;
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renderState.sc_y = (short)y1;
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renderState.sc_w = (short)x2;
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renderState.sc_h = (short)y2;
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renderState.StateFlags |= STF_SCISSORSET;
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}
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void DisableScissor()
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{
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renderState.sc_x = -1;
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renderState.StateFlags |= STF_SCISSORSET;
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}
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void SetDepthFunc(int func)
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{
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renderState.DepthFunc = func;
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}
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void ClearScreen(PalEntry pe)
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{
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//twod->Clear();
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SetViewport(0, 0, xdim, ydim);
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ClearScreen(pe, false);
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}
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void ClearDepth()
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{
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renderState.StateFlags |= STF_CLEARDEPTH;
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}
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void SetRenderStyle(FRenderStyle style)
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{
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renderState.Style = style;
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}
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void SetColor(float r, float g, float b, float a = 1.f)
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{
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renderState.Color[0] = r;
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renderState.Color[1] = g;
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renderState.Color[2] = b;
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renderState.Color[3] = a;
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}
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void SetColorub(uint8_t r, uint8_t g, uint8_t b, uint8_t a = 255)
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{
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SetColor(r * (1 / 255.f), g * (1 / 255.f), b * (1 / 255.f), a * (1 / 255.f));
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}
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void BindTexture(int texunit, FHardwareTexture* tex, int sampler = NoSampler)
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{
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if (!tex) return;
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if (texunit == 0)
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{
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if (tex->isIndexed()) renderState.Flags |= RF_UsePalette;
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else renderState.Flags &= ~RF_UsePalette;
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}
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renderState.texIds[texunit] = tex->GetTextureHandle();
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renderState.samplerIds[texunit] = sampler == NoSampler ? tex->GetSampler() : sampler;
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}
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void UnbindTexture(int texunit)
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{
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renderState.texIds[texunit] = 0;
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renderState.samplerIds[texunit] = 0;
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}
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void UnbindAllTextures()
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{
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for (int texunit = 0; texunit < MAX_TEXTURES; texunit++)
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{
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UnbindTexture(texunit);
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}
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}
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void UseColorOnly(bool yes)
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{
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if (yes) renderState.Flags |= RF_ColorOnly;
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else renderState.Flags &= ~RF_ColorOnly;
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}
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void UseDetailMapping(bool yes)
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{
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if (yes) renderState.Flags |= RF_DetailMapping;
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else renderState.Flags &= ~RF_DetailMapping;
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}
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void UseGlowMapping(bool yes)
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{
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if (yes) renderState.Flags |= RF_GlowMapping;
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else renderState.Flags &= ~RF_GlowMapping;
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}
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void UseBrightmaps(bool yes)
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{
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if (yes) renderState.Flags |= RF_Brightmapping;
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else renderState.Flags &= ~RF_Brightmapping;
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}
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void SetNpotEmulation(bool yes, float factor, float xOffset)
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{
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if (yes)
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{
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renderState.Flags |= RF_NPOTEmulation;
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renderState.NPOTEmulationFactor = factor;
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renderState.NPOTEmulationXOffset = xOffset;
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}
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else renderState.Flags &= ~RF_NPOTEmulation;
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}
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void SetShadeInterpolate(int32_t yes)
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{
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if (yes) renderState.Flags |= RF_ShadeInterpolate;
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else renderState.Flags &= ~RF_ShadeInterpolate;
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}
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void SetFadeColor(PalEntry color)
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{
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renderState.FogColor = color;
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};
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void SetFadeDisable(bool yes)
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{
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if (yes) renderState.Flags |= RF_FogDisabled;
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else renderState.Flags &= ~RF_FogDisabled;
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}
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void SetBrightness(int brightness)
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{
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renderState.Brightness = 8.f / (brightness + 8.f);
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}
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void SetTinting(int flags, PalEntry color, PalEntry modulateColor)
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{
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// not yet implemented.
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}
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void SetBasepalTint(PalEntry color)
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{
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// not yet implemented - only relevant for hires replacements.
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}
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int GetPaletteIndex(PalEntry* palette)
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{
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return palmanager.FindPalette((uint8_t*)palette);
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}
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void EnableAlphaTest(bool on)
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{
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renderState.AlphaTest = on;
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}
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void SetAlphaThreshold(float al)
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{
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renderState.AlphaThreshold = al;
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}
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FHardwareTexture* CreateIndexedTexture(FTexture* tex);
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FHardwareTexture* CreateTrueColorTexture(FTexture* tex, int palid, bool checkfulltransparency = false, bool rgb8bit = false);
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FHardwareTexture *LoadTexture(FTexture* tex, int texturetype, int palid);
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bool SetTextureInternal(int globalpicnum, FTexture* tex, int palette, int method, int sampleroverride, float xpanning, float ypanning, FTexture *det, float detscale, FTexture *glow);
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bool SetNamedTexture(FTexture* tex, int palette, int sampleroverride);
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bool SetTexture(int globalpicnum, FTexture* tex, int palette, int method, int sampleroverride)
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{
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return SetTextureInternal(globalpicnum, tex, palette, method, sampleroverride, 0, 0, nullptr, 1, nullptr);
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}
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bool SetModelTexture(FTexture *tex, int palette, float xpanning, float ypanning, FTexture *det, float detscale, FTexture *glow)
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{
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return SetTextureInternal(-1, tex, palette, 8/*DAMETH_MODEL*/, -1, xpanning, ypanning, det, detscale, glow);
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}
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};
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extern GLInstance GLInterface;
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