mirror of
https://github.com/ZDoom/Raze.git
synced 2024-11-15 17:01:28 +00:00
594ec6626c
Also added support for creating indexed textures directly into CreateTexBuffer, where this functionality can be shared. As an added plus, brightmaps are working again, this time with less hackery.
504 lines
10 KiB
C++
504 lines
10 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 FShader;
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class PolymostShader;
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class SurfaceShader;
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class FGameTexture;
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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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enum ESampler
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{
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NoSampler = -1,
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SamplerRepeat = CLAMP_NONE,
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SamplerClampX = CLAMP_X,
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SamplerClampY = CLAMP_Y,
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SamplerClampXY = CLAMP_XY,
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Sampler2DFiltered = CLAMP_XY_NOMIP, // Currently unused shpuld be used for 2D content
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SamplerNoFilterRepeat = CLAMP_NOFILTER,
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SamplerNoFilterClampX = CLAMP_NOFILTER_X,
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SamplerNoFilterClampY = CLAMP_NOFILTER_Y,
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SamplerNoFilterClampXY = CLAMP_NOFILTER_XY,
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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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OpenGLRenderer::FHardwareTexture* palettetextures[256] = {};
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OpenGLRenderer::FHardwareTexture* palswaptextures[256] = {};
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uint32_t lastindex = ~0u;
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uint32_t lastsindex = ~0u;
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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 BindPalette(int index);
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void BindPalswap(int index);
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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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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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enum
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{
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MAX_TEXTURES = 6, /*15*/ // slot 15 is used internally and not available. - The renderer uses only 5, though.
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};
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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[MAX_TEXTURES] = {}, SamplerId[MAX_TEXTURES] = {};
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};
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class GLInstance
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{
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TArray<PolymostRenderState> rendercommands;
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int maxTextureSize;
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PaletteManager palmanager;
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int lastPalswapIndex = -1;
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OpenGLRenderer::FHardwareTexture* texv;
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FGameTexture* currentTexture = nullptr;
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int TextureType;
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int MatrixChange = 0;
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// Cached GL state.
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GLState lastState;
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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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public:
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glinfo_t glinfo;
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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 Draw2D(F2DDrawer* drawer);
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void DrawImGui(ImDrawData*);
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void ResetFrame();
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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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void Draw(EDrawType type, size_t start, size_t count);
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void DoDraw();
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void DrawElement(EDrawType type, size_t start, size_t count, PolymostRenderState& renderState);
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OpenGLRenderer::FHardwareTexture* NewTexture(int numchannels = 4);
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void SetVertexBuffer(IVertexBuffer* vb, int offset1, int offset2);
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void SetIndexBuffer(IIndexBuffer* vb);
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void ClearBufferState();
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float GetProjectionM5() { return mProjectionM5; }
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int SetMatrix(int num, const VSMatrix *mat );
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int SetMatrix(int num, const float *mat)
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{
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return SetMatrix(num, reinterpret_cast<const VSMatrix*>(mat));
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}
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int SetIdentityMatrix(int num)
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{
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auto r = renderState.matrixIndex[num];
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renderState.matrixIndex[num] = 0;
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return r;
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}
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void RestoreMatrix(int num, int index)
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{
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renderState.matrixIndex[num] = index;
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}
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void SetPolymostShader();
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void SetSurfaceShader();
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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 SetDepthBias(float a, float b)
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{
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renderState.mBias.mFactor = a;
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renderState.mBias.mUnits = b;
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renderState.mBias.mChanged = true;
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}
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void ClearDepthBias()
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{
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renderState.mBias.mFactor = 0;
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renderState.mBias.mUnits = 0;
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renderState.mBias.mChanged = true;
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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 = SHRT_MIN;
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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, OpenGLRenderer::FHardwareTexture* tex, int sampler)
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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->numChannels() == 1)
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renderState.Flags |= RF_UsePalette;
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else
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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;
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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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// Hack...
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bool useMapFog = false;
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void SetMapFog(bool yes)
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{
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useMapFog = yes;
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}
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void applyMapFog()
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{
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if (useMapFog) renderState.Flags |= RF_MapFog;
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else renderState.Flags &= ~RF_MapFog;
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}
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void clearMapFog()
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{
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renderState.Flags &= ~RF_MapFog;
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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 overlayColor)
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{
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renderState.hictint = color;
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renderState.hictint_overlay = overlayColor;
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renderState.hictint_flags = flags;
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}
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void SetBasepalTint(PalEntry color)
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{
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renderState.fullscreenTint = color;
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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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OpenGLRenderer::FHardwareTexture *LoadTexture(FTexture* tex, int texturetype, int palid);
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bool SetTextureInternal(int globalpicnum, FGameTexture* tex, int palette, int method, int sampleroverride, FGameTexture *det, float detscale, FGameTexture *glow);
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bool SetTexture(int globalpicnum, FGameTexture* tex, int palette, int method, int sampleroverride)
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{
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return SetTextureInternal(globalpicnum, tex, palette, method, sampleroverride, nullptr, 1, nullptr);
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}
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bool SetModelTexture(FGameTexture *tex, int palette, FGameTexture *det, float detscale, FGameTexture *glow)
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{
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return SetTextureInternal(-1, tex, palette, 8/*DAMETH_MODEL*/, -1, det, detscale, glow);
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}
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};
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extern GLInstance GLInterface;
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