1// This file can be included several times.
2#if (!defined(BACKEND_AS_OPENGL_ES) && !defined(ENGINE_CLIENT_BACKEND_OPENGL_BACKEND_OPENGL_H)) || \
3 (defined(BACKEND_AS_OPENGL_ES) && !defined(ENGINE_CLIENT_BACKEND_OPENGL_BACKEND_OPENGL_H_AS_ES))
4
5#if !defined(BACKEND_AS_OPENGL_ES) && !defined(ENGINE_CLIENT_BACKEND_OPENGL_BACKEND_OPENGL_H)
6#define ENGINE_CLIENT_BACKEND_OPENGL_BACKEND_OPENGL_H
7#endif
8
9#if defined(BACKEND_AS_OPENGL_ES) && !defined(ENGINE_CLIENT_BACKEND_OPENGL_BACKEND_OPENGL_H_AS_ES)
10#define ENGINE_CLIENT_BACKEND_OPENGL_BACKEND_OPENGL_H_AS_ES
11#endif
12
13#include <base/system.h>
14
15#include <engine/client/backend/backend_base.h>
16#include <engine/client/graphics_defines.h>
17
18class CGLSLTWProgram;
19class CGLSLPrimitiveProgram;
20class CGLSLTileProgram;
21
22#if defined(BACKEND_AS_OPENGL_ES) && defined(CONF_BACKEND_OPENGL_ES3)
23#define BACKEND_GL_MODERN_API 1
24#endif
25
26// takes care of opengl related rendering
27class CCommandProcessorFragment_OpenGL : public CCommandProcessorFragment_GLBase
28{
29protected:
30 struct CTexture
31 {
32 CTexture() :
33 m_Tex(0), m_Tex2DArray(0), m_Sampler(0), m_Sampler2DArray(0), m_LastWrapMode(EWrapMode::REPEAT), m_MemSize(0), m_Width(0), m_Height(0), m_RescaleCount(0), m_ResizeWidth(0), m_ResizeHeight(0)
34 {
35 }
36
37 TWGLuint m_Tex;
38 TWGLuint m_Tex2DArray; // or 3D texture as fallback
39 TWGLuint m_Sampler;
40 TWGLuint m_Sampler2DArray; // or 3D texture as fallback
41 EWrapMode m_LastWrapMode;
42
43 int m_MemSize;
44
45 int m_Width;
46 int m_Height;
47 int m_RescaleCount;
48 float m_ResizeWidth;
49 float m_ResizeHeight;
50 };
51 std::vector<CTexture> m_vTextures;
52 std::atomic<uint64_t> *m_pTextureMemoryUsage;
53
54 uint32_t m_CanvasWidth = 0;
55 uint32_t m_CanvasHeight = 0;
56
57 TWGLint m_MaxTexSize;
58
59 bool m_Has2DArrayTextures;
60 bool m_Has2DArrayTexturesAsExtension;
61 TWGLenum m_2DArrayTarget;
62 bool m_Has3DTextures;
63 bool m_HasMipMaps;
64 bool m_HasNPOTTextures;
65
66 bool m_HasShaders;
67 EBlendMode m_LastBlendMode; // avoid all possible opengl state changes
68 bool m_LastClipEnable;
69
70 int m_OpenGLTextureLodBIAS;
71
72 bool m_IsOpenGLES;
73
74 bool IsTexturedState(const CCommandBuffer::SState &State);
75
76 bool InitOpenGL(const SCommand_Init *pCommand);
77
78 void SetState(const CCommandBuffer::SState &State, bool Use2DArrayTexture = false);
79 virtual bool IsNewApi() { return false; }
80 void DestroyTexture(int Slot);
81
82 bool GetPresentedImageData(uint32_t &Width, uint32_t &Height, CImageInfo::EImageFormat &Format, std::vector<uint8_t> &vDstData) override;
83
84 static size_t GLFormatToPixelSize(int GLFormat);
85
86 void TextureUpdate(int Slot, int X, int Y, int Width, int Height, int GLFormat, uint8_t *pTexData);
87 void TextureCreate(int Slot, int Width, int Height, int GLFormat, int GLStoreFormat, int Flags, uint8_t *pTexData);
88
89 virtual bool Cmd_Init(const SCommand_Init *pCommand);
90 virtual void Cmd_Shutdown(const SCommand_Shutdown *pCommand) {}
91 virtual void Cmd_Texture_Destroy(const CCommandBuffer::SCommand_Texture_Destroy *pCommand);
92 virtual void Cmd_Texture_Create(const CCommandBuffer::SCommand_Texture_Create *pCommand);
93 virtual void Cmd_TextTexture_Update(const CCommandBuffer::SCommand_TextTexture_Update *pCommand);
94 virtual void Cmd_TextTextures_Destroy(const CCommandBuffer::SCommand_TextTextures_Destroy *pCommand);
95 virtual void Cmd_TextTextures_Create(const CCommandBuffer::SCommand_TextTextures_Create *pCommand);
96 virtual void Cmd_Clear(const CCommandBuffer::SCommand_Clear *pCommand);
97 virtual void Cmd_Render(const CCommandBuffer::SCommand_Render *pCommand);
98 virtual void Cmd_RenderTex3D(const CCommandBuffer::SCommand_RenderTex3D *pCommand) { dbg_assert_failed("Call of unsupported Cmd_RenderTex3D"); }
99 virtual void Cmd_ReadPixel(const CCommandBuffer::SCommand_TrySwapAndReadPixel *pCommand);
100 virtual void Cmd_Screenshot(const CCommandBuffer::SCommand_TrySwapAndScreenshot *pCommand);
101
102 virtual void Cmd_Update_Viewport(const CCommandBuffer::SCommand_Update_Viewport *pCommand);
103
104 virtual void Cmd_CreateBufferObject(const CCommandBuffer::SCommand_CreateBufferObject *pCommand) { dbg_assert_failed("Call of unsupported Cmd_CreateBufferObject"); }
105 virtual void Cmd_RecreateBufferObject(const CCommandBuffer::SCommand_RecreateBufferObject *pCommand) { dbg_assert_failed("Call of unsupported Cmd_RecreateBufferObject"); }
106 virtual void Cmd_UpdateBufferObject(const CCommandBuffer::SCommand_UpdateBufferObject *pCommand) { dbg_assert_failed("Call of unsupported Cmd_UpdateBufferObject"); }
107 virtual void Cmd_CopyBufferObject(const CCommandBuffer::SCommand_CopyBufferObject *pCommand) { dbg_assert_failed("Call of unsupported Cmd_CopyBufferObject"); }
108 virtual void Cmd_DeleteBufferObject(const CCommandBuffer::SCommand_DeleteBufferObject *pCommand) { dbg_assert_failed("Call of unsupported Cmd_DeleteBufferObject"); }
109
110 virtual void Cmd_CreateBufferContainer(const CCommandBuffer::SCommand_CreateBufferContainer *pCommand) { dbg_assert_failed("Call of unsupported Cmd_CreateBufferContainer"); }
111 virtual void Cmd_UpdateBufferContainer(const CCommandBuffer::SCommand_UpdateBufferContainer *pCommand) { dbg_assert_failed("Call of unsupported Cmd_UpdateBufferContainer"); }
112 virtual void Cmd_DeleteBufferContainer(const CCommandBuffer::SCommand_DeleteBufferContainer *pCommand) { dbg_assert_failed("Call of unsupported Cmd_DeleteBufferContainer"); }
113 virtual void Cmd_IndicesRequiredNumNotify(const CCommandBuffer::SCommand_IndicesRequiredNumNotify *pCommand) { dbg_assert_failed("Call of unsupported Cmd_IndicesRequiredNumNotify"); }
114
115 virtual void Cmd_RenderTileLayer(const CCommandBuffer::SCommand_RenderTileLayer *pCommand) { dbg_assert_failed("Call of unsupported Cmd_RenderTileLayer"); }
116 virtual void Cmd_RenderBorderTile(const CCommandBuffer::SCommand_RenderBorderTile *pCommand) { dbg_assert_failed("Call of unsupported Cmd_RenderBorderTile"); }
117 virtual void Cmd_RenderQuadLayer(const CCommandBuffer::SCommand_RenderQuadLayer *pCommand, bool Grouped) { dbg_assert_failed("Call of unsupported Cmd_RenderQuadLayer"); }
118 virtual void Cmd_RenderText(const CCommandBuffer::SCommand_RenderText *pCommand) { dbg_assert_failed("Call of unsupported Cmd_RenderText"); }
119 virtual void Cmd_RenderQuadContainer(const CCommandBuffer::SCommand_RenderQuadContainer *pCommand) { dbg_assert_failed("Call of unsupported Cmd_RenderQuadContainer"); }
120 virtual void Cmd_RenderQuadContainerEx(const CCommandBuffer::SCommand_RenderQuadContainerEx *pCommand) { dbg_assert_failed("Call of unsupported Cmd_RenderQuadContainerEx"); }
121 virtual void Cmd_RenderQuadContainerAsSpriteMultiple(const CCommandBuffer::SCommand_RenderQuadContainerAsSpriteMultiple *pCommand) { dbg_assert_failed("Call of unsupported Cmd_RenderQuadContainerAsSpriteMultiple"); }
122
123public:
124 CCommandProcessorFragment_OpenGL();
125
126 ERunCommandReturnTypes RunCommand(const CCommandBuffer::SCommand *pBaseCommand) override;
127};
128
129class CCommandProcessorFragment_OpenGL2 : public CCommandProcessorFragment_OpenGL
130{
131 struct SBufferContainer
132 {
133 SBufferContainerInfo m_ContainerInfo;
134 };
135 std::vector<SBufferContainer> m_vBufferContainers;
136
137#ifndef BACKEND_AS_OPENGL_ES
138 GL_SVertexTex3D m_aStreamVertices[1024 * 4];
139#endif
140
141 struct SBufferObject
142 {
143 SBufferObject(TWGLuint BufferObjectId) :
144 m_BufferObjectId(BufferObjectId)
145 {
146 m_pData = NULL;
147 m_DataSize = 0;
148 }
149 TWGLuint m_BufferObjectId;
150 uint8_t *m_pData;
151 size_t m_DataSize;
152 };
153
154 std::vector<SBufferObject> m_vBufferObjectIndices;
155
156#ifndef BACKEND_GL_MODERN_API
157 bool DoAnalyzeStep(size_t CheckCount, size_t VerticesCount, uint8_t aFakeTexture[], size_t SingleImageSize);
158 bool IsTileMapAnalysisSucceeded();
159#endif
160
161 void UseProgram(CGLSLTWProgram *pProgram);
162
163protected:
164 void SetState(const CCommandBuffer::SState &State, CGLSLTWProgram *pProgram, bool Use2DArrayTextures = false);
165
166#ifndef BACKEND_GL_MODERN_API
167 bool Cmd_Init(const SCommand_Init *pCommand) override;
168 void Cmd_Shutdown(const SCommand_Shutdown *pCommand) override;
169
170 void Cmd_RenderTex3D(const CCommandBuffer::SCommand_RenderTex3D *pCommand) override;
171
172 void Cmd_CreateBufferObject(const CCommandBuffer::SCommand_CreateBufferObject *pCommand) override;
173 void Cmd_RecreateBufferObject(const CCommandBuffer::SCommand_RecreateBufferObject *pCommand) override;
174 void Cmd_UpdateBufferObject(const CCommandBuffer::SCommand_UpdateBufferObject *pCommand) override;
175 void Cmd_CopyBufferObject(const CCommandBuffer::SCommand_CopyBufferObject *pCommand) override;
176 void Cmd_DeleteBufferObject(const CCommandBuffer::SCommand_DeleteBufferObject *pCommand) override;
177
178 void Cmd_CreateBufferContainer(const CCommandBuffer::SCommand_CreateBufferContainer *pCommand) override;
179 void Cmd_UpdateBufferContainer(const CCommandBuffer::SCommand_UpdateBufferContainer *pCommand) override;
180 void Cmd_DeleteBufferContainer(const CCommandBuffer::SCommand_DeleteBufferContainer *pCommand) override;
181 void Cmd_IndicesRequiredNumNotify(const CCommandBuffer::SCommand_IndicesRequiredNumNotify *pCommand) override;
182
183 void Cmd_RenderTileLayer(const CCommandBuffer::SCommand_RenderTileLayer *pCommand) override;
184 void Cmd_RenderBorderTile(const CCommandBuffer::SCommand_RenderBorderTile *pCommand) override;
185#endif
186
187 CGLSLTileProgram *m_pTileProgram;
188 CGLSLTileProgram *m_pTileProgramTextured;
189 CGLSLTileProgram *m_pBorderTileProgram;
190 CGLSLTileProgram *m_pBorderTileProgramTextured;
191 CGLSLPrimitiveProgram *m_pPrimitive3DProgram;
192 CGLSLPrimitiveProgram *m_pPrimitive3DProgramTextured;
193};
194
195class CCommandProcessorFragment_OpenGL3 : public CCommandProcessorFragment_OpenGL2
196{
197};
198
199#if defined(BACKEND_AS_OPENGL_ES) && defined(CONF_BACKEND_OPENGL_ES3)
200#undef BACKEND_GL_MODERN_API
201#endif
202
203#endif
204