diff --git a/desmume/src/OGLRender.h b/desmume/src/OGLRender.h index ada53834b..93f54b5e1 100755 --- a/desmume/src/OGLRender.h +++ b/desmume/src/OGLRender.h @@ -1,935 +1,935 @@ -/* - Copyright (C) 2006 yopyop - Copyright (C) 2006-2007 shash - Copyright (C) 2008-2023 DeSmuME team - - This file is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 2 of the License, or - (at your option) any later version. - - This file is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with the this software. If not, see . -*/ - -#ifndef OGLRENDER_H -#define OGLRENDER_H - -#include -#include -#include -#include -#include "render3D.h" -#include "types.h" - -#ifndef OGLRENDER_3_2_H - -#if defined(_WIN32) - #define WIN32_LEAN_AND_MEAN - #include - #include - #include - - #define OGLEXT(procPtr, func) procPtr func = NULL; - #define INITOGLEXT(procPtr, func) func = (procPtr)wglGetProcAddress(#func); - #define EXTERNOGLEXT(procPtr, func) extern procPtr func; -#elif defined(__APPLE__) - #include - #include - - // Ignore dynamic linking on Apple OS - #define OGLEXT(procPtr, func) - #define INITOGLEXT(procPtr, func) - #define EXTERNOGLEXT(procPtr, func) - - // We're not exactly committing to OpenGL 3.2 Core Profile just yet, so redefine APPLE - // extensions as a temporary measure. - #if defined(GL_APPLE_vertex_array_object) && !defined(GL_ARB_vertex_array_object) - #define glGenVertexArrays(n, ids) glGenVertexArraysAPPLE(n, ids) - #define glBindVertexArray(id) glBindVertexArrayAPPLE(id) - #define glDeleteVertexArrays(n, ids) glDeleteVertexArraysAPPLE(n, ids) - #endif -#else - #include - #include - #include - - /* This is a workaround needed to compile against nvidia GL headers */ - #ifndef GL_ALPHA_BLEND_EQUATION_ATI - #undef GL_VERSION_1_3 - #endif - - #define OGLEXT(procPtr, func) procPtr func = NULL; - #define INITOGLEXT(procPtr, func) func = (procPtr)glXGetProcAddress((const GLubyte *) #func); - #define EXTERNOGLEXT(procPtr, func) extern procPtr func; -#endif - -// Check minimum OpenGL header version -#if !defined(GL_VERSION_2_1) - #if defined(GL_VERSION_2_0) - #warning Using OpenGL v2.0 headers with v2.1 overrides. Some features will be disabled. - - #if !defined(GL_ARB_framebuffer_object) - // Overrides for GL_EXT_framebuffer_blit - #if !defined(GL_EXT_framebuffer_blit) - #define GL_READ_FRAMEBUFFER_EXT GL_FRAMEBUFFER_EXT - #define GL_DRAW_FRAMEBUFFER_EXT GL_FRAMEBUFFER_EXT - #define glBlitFramebufferEXT(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter) - #endif - - // Overrides for GL_EXT_framebuffer_multisample - #if !defined(GL_EXT_framebuffer_multisample) - #define GL_MAX_SAMPLES_EXT 0 - #define glRenderbufferStorageMultisampleEXT(target, samples, internalformat, width, height) - #endif - - // Overrides for GL_ARB_pixel_buffer_object - #if !defined(GL_PIXEL_PACK_BUFFER) && defined(GL_PIXEL_PACK_BUFFER_ARB) - #define GL_PIXEL_PACK_BUFFER GL_PIXEL_PACK_BUFFER_ARB - #endif - #endif - #else - #error OpenGL requires v2.1 headers or later. - #endif -#endif - -// Textures -#if !defined(GLX_H) -EXTERNOGLEXT(PFNGLACTIVETEXTUREPROC, glActiveTexture) // Core in v1.3 -EXTERNOGLEXT(PFNGLACTIVETEXTUREARBPROC, glActiveTextureARB) -#endif - -// Blending -#if !defined(GLX_H) -EXTERNOGLEXT(PFNGLBLENDEQUATIONPROC, glBlendEquation) // Core in v1.2 -#endif -EXTERNOGLEXT(PFNGLBLENDFUNCSEPARATEPROC, glBlendFuncSeparate) // Core in v1.4 -EXTERNOGLEXT(PFNGLBLENDEQUATIONSEPARATEPROC, glBlendEquationSeparate) // Core in v2.0 - -EXTERNOGLEXT(PFNGLBLENDFUNCSEPARATEEXTPROC, glBlendFuncSeparateEXT) -EXTERNOGLEXT(PFNGLBLENDEQUATIONSEPARATEEXTPROC, glBlendEquationSeparateEXT) - -// Shaders -EXTERNOGLEXT(PFNGLCREATESHADERPROC, glCreateShader) // Core in v2.0 -EXTERNOGLEXT(PFNGLSHADERSOURCEPROC, glShaderSource) // Core in v2.0 -EXTERNOGLEXT(PFNGLCOMPILESHADERPROC, glCompileShader) // Core in v2.0 -EXTERNOGLEXT(PFNGLCREATEPROGRAMPROC, glCreateProgram) // Core in v2.0 -EXTERNOGLEXT(PFNGLATTACHSHADERPROC, glAttachShader) // Core in v2.0 -EXTERNOGLEXT(PFNGLDETACHSHADERPROC, glDetachShader) // Core in v2.0 -EXTERNOGLEXT(PFNGLLINKPROGRAMPROC, glLinkProgram) // Core in v2.0 -EXTERNOGLEXT(PFNGLUSEPROGRAMPROC, glUseProgram) // Core in v2.0 -EXTERNOGLEXT(PFNGLGETSHADERIVPROC, glGetShaderiv) // Core in v2.0 -EXTERNOGLEXT(PFNGLGETSHADERINFOLOGPROC, glGetShaderInfoLog) // Core in v2.0 -EXTERNOGLEXT(PFNGLDELETESHADERPROC, glDeleteShader) // Core in v2.0 -EXTERNOGLEXT(PFNGLDELETEPROGRAMPROC, glDeleteProgram) // Core in v2.0 -EXTERNOGLEXT(PFNGLGETPROGRAMIVPROC, glGetProgramiv) // Core in v2.0 -EXTERNOGLEXT(PFNGLGETPROGRAMINFOLOGPROC, glGetProgramInfoLog) // Core in v2.0 -EXTERNOGLEXT(PFNGLVALIDATEPROGRAMPROC, glValidateProgram) // Core in v2.0 -EXTERNOGLEXT(PFNGLGETUNIFORMLOCATIONPROC, glGetUniformLocation) // Core in v2.0 -EXTERNOGLEXT(PFNGLUNIFORM1IPROC, glUniform1i) // Core in v2.0 -EXTERNOGLEXT(PFNGLUNIFORM1IVPROC, glUniform1iv) // Core in v2.0 -EXTERNOGLEXT(PFNGLUNIFORM1FPROC, glUniform1f) // Core in v2.0 -EXTERNOGLEXT(PFNGLUNIFORM1FVPROC, glUniform1fv) // Core in v2.0 -EXTERNOGLEXT(PFNGLUNIFORM2FPROC, glUniform2f) // Core in v2.0 -EXTERNOGLEXT(PFNGLUNIFORM4FPROC, glUniform4f) // Core in v2.0 -EXTERNOGLEXT(PFNGLUNIFORM4FVPROC, glUniform4fv) // Core in v2.0 -EXTERNOGLEXT(PFNGLDRAWBUFFERSPROC, glDrawBuffers) // Core in v2.0 - -// Generic vertex attributes -EXTERNOGLEXT(PFNGLBINDATTRIBLOCATIONPROC, glBindAttribLocation) // Core in v2.0 -EXTERNOGLEXT(PFNGLENABLEVERTEXATTRIBARRAYPROC, glEnableVertexAttribArray) // Core in v2.0 -EXTERNOGLEXT(PFNGLDISABLEVERTEXATTRIBARRAYPROC, glDisableVertexAttribArray) // Core in v2.0 -EXTERNOGLEXT(PFNGLVERTEXATTRIBPOINTERPROC, glVertexAttribPointer) // Core in v2.0 - -// VAO -EXTERNOGLEXT(PFNGLGENVERTEXARRAYSPROC, glGenVertexArrays) -EXTERNOGLEXT(PFNGLDELETEVERTEXARRAYSPROC, glDeleteVertexArrays) -EXTERNOGLEXT(PFNGLBINDVERTEXARRAYPROC, glBindVertexArray) - -// VBO and PBO -EXTERNOGLEXT(PFNGLGENBUFFERSARBPROC, glGenBuffersARB) -EXTERNOGLEXT(PFNGLDELETEBUFFERSARBPROC, glDeleteBuffersARB) -EXTERNOGLEXT(PFNGLBINDBUFFERARBPROC, glBindBufferARB) -EXTERNOGLEXT(PFNGLBUFFERDATAARBPROC, glBufferDataARB) -EXTERNOGLEXT(PFNGLBUFFERSUBDATAARBPROC, glBufferSubDataARB) -EXTERNOGLEXT(PFNGLMAPBUFFERARBPROC, glMapBufferARB) -EXTERNOGLEXT(PFNGLUNMAPBUFFERARBPROC, glUnmapBufferARB) - -EXTERNOGLEXT(PFNGLGENBUFFERSPROC, glGenBuffers) // Core in v1.5 -EXTERNOGLEXT(PFNGLDELETEBUFFERSPROC, glDeleteBuffers) // Core in v1.5 -EXTERNOGLEXT(PFNGLBINDBUFFERPROC, glBindBuffer) // Core in v1.5 -EXTERNOGLEXT(PFNGLBUFFERDATAPROC, glBufferData) // Core in v1.5 -EXTERNOGLEXT(PFNGLBUFFERSUBDATAPROC, glBufferSubData) // Core in v1.5 -EXTERNOGLEXT(PFNGLMAPBUFFERPROC, glMapBuffer) // Core in v1.5 -EXTERNOGLEXT(PFNGLUNMAPBUFFERPROC, glUnmapBuffer) // Core in v1.5 - -// FBO -EXTERNOGLEXT(PFNGLGENFRAMEBUFFERSEXTPROC, glGenFramebuffersEXT) -EXTERNOGLEXT(PFNGLBINDFRAMEBUFFEREXTPROC, glBindFramebufferEXT) -EXTERNOGLEXT(PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC, glFramebufferRenderbufferEXT) -EXTERNOGLEXT(PFNGLFRAMEBUFFERTEXTURE2DEXTPROC, glFramebufferTexture2DEXT) -EXTERNOGLEXT(PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC, glCheckFramebufferStatusEXT) -EXTERNOGLEXT(PFNGLDELETEFRAMEBUFFERSEXTPROC, glDeleteFramebuffersEXT) -EXTERNOGLEXT(PFNGLBLITFRAMEBUFFEREXTPROC, glBlitFramebufferEXT) - -// Multisampled FBO -EXTERNOGLEXT(PFNGLGENRENDERBUFFERSEXTPROC, glGenRenderbuffersEXT) -EXTERNOGLEXT(PFNGLBINDRENDERBUFFEREXTPROC, glBindRenderbufferEXT) -EXTERNOGLEXT(PFNGLRENDERBUFFERSTORAGEEXTPROC, glRenderbufferStorageEXT) -EXTERNOGLEXT(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC, glRenderbufferStorageMultisampleEXT) -EXTERNOGLEXT(PFNGLDELETERENDERBUFFERSEXTPROC, glDeleteRenderbuffersEXT) - -#else // OGLRENDER_3_2_H - -// Basic Functions -EXTERNOGLEXT(PFNGLGETSTRINGIPROC, glGetStringi) // Core in v3.0 -EXTERNOGLEXT(PFNGLCLEARBUFFERFVPROC, glClearBufferfv) // Core in v3.0 -EXTERNOGLEXT(PFNGLCLEARBUFFERFIPROC, glClearBufferfi) // Core in v3.0 - -// Textures -#if !defined(GLX_H) -EXTERNOGLEXT(PFNGLACTIVETEXTUREPROC, glActiveTexture) // Core in v1.3 -#endif - -// Blending -#if !defined(GLX_H) -EXTERNOGLEXT(PFNGLBLENDEQUATIONPROC, glBlendEquation) // Core in v1.2 -#endif -EXTERNOGLEXT(PFNGLBLENDFUNCSEPARATEPROC, glBlendFuncSeparate) // Core in v1.4 -EXTERNOGLEXT(PFNGLBLENDEQUATIONSEPARATEPROC, glBlendEquationSeparate) // Core in v2.0 - -// Shaders -EXTERNOGLEXT(PFNGLCREATESHADERPROC, glCreateShader) // Core in v2.0 -EXTERNOGLEXT(PFNGLSHADERSOURCEPROC, glShaderSource) // Core in v2.0 -EXTERNOGLEXT(PFNGLCOMPILESHADERPROC, glCompileShader) // Core in v2.0 -EXTERNOGLEXT(PFNGLCREATEPROGRAMPROC, glCreateProgram) // Core in v2.0 -EXTERNOGLEXT(PFNGLATTACHSHADERPROC, glAttachShader) // Core in v2.0 -EXTERNOGLEXT(PFNGLDETACHSHADERPROC, glDetachShader) // Core in v2.0 -EXTERNOGLEXT(PFNGLLINKPROGRAMPROC, glLinkProgram) // Core in v2.0 -EXTERNOGLEXT(PFNGLUSEPROGRAMPROC, glUseProgram) // Core in v2.0 -EXTERNOGLEXT(PFNGLGETSHADERIVPROC, glGetShaderiv) // Core in v2.0 -EXTERNOGLEXT(PFNGLGETSHADERINFOLOGPROC, glGetShaderInfoLog) // Core in v2.0 -EXTERNOGLEXT(PFNGLDELETESHADERPROC, glDeleteShader) // Core in v2.0 -EXTERNOGLEXT(PFNGLDELETEPROGRAMPROC, glDeleteProgram) // Core in v2.0 -EXTERNOGLEXT(PFNGLGETPROGRAMIVPROC, glGetProgramiv) // Core in v2.0 -EXTERNOGLEXT(PFNGLGETPROGRAMINFOLOGPROC, glGetProgramInfoLog) // Core in v2.0 -EXTERNOGLEXT(PFNGLVALIDATEPROGRAMPROC, glValidateProgram) // Core in v2.0 -EXTERNOGLEXT(PFNGLGETUNIFORMLOCATIONPROC, glGetUniformLocation) // Core in v2.0 -EXTERNOGLEXT(PFNGLUNIFORM1IPROC, glUniform1i) // Core in v2.0 -EXTERNOGLEXT(PFNGLUNIFORM1IVPROC, glUniform1iv) // Core in v2.0 -EXTERNOGLEXT(PFNGLUNIFORM1FPROC, glUniform1f) // Core in v2.0 -EXTERNOGLEXT(PFNGLUNIFORM1FVPROC, glUniform1fv) // Core in v2.0 -EXTERNOGLEXT(PFNGLUNIFORM2FPROC, glUniform2f) // Core in v2.0 -EXTERNOGLEXT(PFNGLUNIFORM4FPROC, glUniform4f) // Core in v2.0 -EXTERNOGLEXT(PFNGLUNIFORM4FVPROC, glUniform4fv) // Core in v2.0 -EXTERNOGLEXT(PFNGLDRAWBUFFERSPROC, glDrawBuffers) // Core in v2.0 - -// Generic vertex attributes -EXTERNOGLEXT(PFNGLBINDATTRIBLOCATIONPROC, glBindAttribLocation) // Core in v2.0 -EXTERNOGLEXT(PFNGLBINDFRAGDATALOCATIONPROC, glBindFragDataLocation) // Core in v3.0 -EXTERNOGLEXT(PFNGLBINDFRAGDATALOCATIONINDEXEDPROC, glBindFragDataLocationIndexed) // Core in v3.3 -EXTERNOGLEXT(PFNGLENABLEVERTEXATTRIBARRAYPROC, glEnableVertexAttribArray) // Core in v2.0 -EXTERNOGLEXT(PFNGLDISABLEVERTEXATTRIBARRAYPROC, glDisableVertexAttribArray) // Core in v2.0 -EXTERNOGLEXT(PFNGLVERTEXATTRIBPOINTERPROC, glVertexAttribPointer) // Core in v2.0 - -// VAO -EXTERNOGLEXT(PFNGLGENVERTEXARRAYSPROC, glGenVertexArrays) // Core in v3.0 -EXTERNOGLEXT(PFNGLDELETEVERTEXARRAYSPROC, glDeleteVertexArrays) // Core in v3.0 -EXTERNOGLEXT(PFNGLBINDVERTEXARRAYPROC, glBindVertexArray) // Core in v3.0 - -// VBO and PBO -EXTERNOGLEXT(PFNGLGENBUFFERSPROC, glGenBuffers) // Core in v1.5 -EXTERNOGLEXT(PFNGLDELETEBUFFERSPROC, glDeleteBuffers) // Core in v1.5 -EXTERNOGLEXT(PFNGLBINDBUFFERPROC, glBindBuffer) // Core in v1.5 -EXTERNOGLEXT(PFNGLBUFFERDATAPROC, glBufferData) // Core in v1.5 -EXTERNOGLEXT(PFNGLBUFFERSUBDATAPROC, glBufferSubData) // Core in v1.5 -EXTERNOGLEXT(PFNGLMAPBUFFERPROC, glMapBuffer) // Core in v1.5 -EXTERNOGLEXT(PFNGLUNMAPBUFFERPROC, glUnmapBuffer) // Core in v1.5 - -// Buffer Objects -EXTERNOGLEXT(PFNGLMAPBUFFERRANGEPROC, glMapBufferRange) // Core in v3.0 - -// FBO -EXTERNOGLEXT(PFNGLGENFRAMEBUFFERSPROC, glGenFramebuffers) // Core in v3.0 -EXTERNOGLEXT(PFNGLBINDFRAMEBUFFERPROC, glBindFramebuffer) // Core in v3.0 -EXTERNOGLEXT(PFNGLFRAMEBUFFERRENDERBUFFERPROC, glFramebufferRenderbuffer) // Core in v3.0 -EXTERNOGLEXT(PFNGLFRAMEBUFFERTEXTURE2DPROC, glFramebufferTexture2D) // Core in v3.0 -EXTERNOGLEXT(PFNGLCHECKFRAMEBUFFERSTATUSPROC, glCheckFramebufferStatus) // Core in v3.0 -EXTERNOGLEXT(PFNGLDELETEFRAMEBUFFERSPROC, glDeleteFramebuffers) // Core in v3.0 -EXTERNOGLEXT(PFNGLBLITFRAMEBUFFERPROC, glBlitFramebuffer) // Core in v3.0 -EXTERNOGLEXT(PFNGLDRAWBUFFERSPROC, glDrawBuffers) // Core in v2.0 - -// Multisampled FBO -EXTERNOGLEXT(PFNGLGENRENDERBUFFERSPROC, glGenRenderbuffers) // Core in v3.0 -EXTERNOGLEXT(PFNGLBINDRENDERBUFFERPROC, glBindRenderbuffer) // Core in v3.0 -EXTERNOGLEXT(PFNGLRENDERBUFFERSTORAGEPROC, glRenderbufferStorage) // Core in v3.0 -EXTERNOGLEXT(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC, glRenderbufferStorageMultisample) // Core in v3.0 -EXTERNOGLEXT(PFNGLDELETERENDERBUFFERSPROC, glDeleteRenderbuffers) // Core in v3.0 -EXTERNOGLEXT(PFNGLTEXIMAGE2DMULTISAMPLEPROC, glTexImage2DMultisample) // Core in v3.2 - -// UBO -EXTERNOGLEXT(PFNGLGETUNIFORMBLOCKINDEXPROC, glGetUniformBlockIndex) // Core in v3.1 -EXTERNOGLEXT(PFNGLUNIFORMBLOCKBINDINGPROC, glUniformBlockBinding) // Core in v3.1 -EXTERNOGLEXT(PFNGLBINDBUFFERBASEPROC, glBindBufferBase) // Core in v3.0 -EXTERNOGLEXT(PFNGLGETACTIVEUNIFORMBLOCKIVPROC, glGetActiveUniformBlockiv) // Core in v3.1 - -// TBO -EXTERNOGLEXT(PFNGLTEXBUFFERPROC, glTexBuffer) // Core in v3.1 - -// Sync Objects -EXTERNOGLEXT(PFNGLFENCESYNCPROC, glFenceSync) // Core in v3.2 -EXTERNOGLEXT(PFNGLWAITSYNCPROC, glWaitSync) // Core in v3.2 -EXTERNOGLEXT(PFNGLDELETESYNCPROC, glDeleteSync) // Core in v3.2 - -#endif // OGLRENDER_3_2_H - -// Define the minimum required OpenGL version for the driver to support -#define OGLRENDER_MINIMUM_DRIVER_VERSION_REQUIRED_MAJOR 1 -#define OGLRENDER_MINIMUM_DRIVER_VERSION_REQUIRED_MINOR 2 -#define OGLRENDER_MINIMUM_DRIVER_VERSION_REQUIRED_REVISION 0 - -#define OGLRENDER_VERT_INDEX_BUFFER_COUNT (CLIPPED_POLYLIST_SIZE * 6) - -// Assign the FBO attachments for the main geometry render -#ifdef OGLRENDER_3_2_H - #define GL_COLOROUT_ATTACHMENT_ID GL_COLOR_ATTACHMENT0 - #define GL_WORKING_ATTACHMENT_ID GL_COLOR_ATTACHMENT3 - #define GL_POLYID_ATTACHMENT_ID GL_COLOR_ATTACHMENT1 - #define GL_FOGATTRIBUTES_ATTACHMENT_ID GL_COLOR_ATTACHMENT2 -#else - #define GL_COLOROUT_ATTACHMENT_ID GL_COLOR_ATTACHMENT0_EXT - #define GL_WORKING_ATTACHMENT_ID GL_COLOR_ATTACHMENT3_EXT - #define GL_POLYID_ATTACHMENT_ID GL_COLOR_ATTACHMENT1_EXT - #define GL_FOGATTRIBUTES_ATTACHMENT_ID GL_COLOR_ATTACHMENT2_EXT -#endif - -enum OGLVertexAttributeID -{ - OGLVertexAttributeID_Position = 0, - OGLVertexAttributeID_TexCoord0 = 8, - OGLVertexAttributeID_Color = 3 -}; - -enum OGLTextureUnitID -{ - // Main textures will always be on texture unit 0. - OGLTextureUnitID_FinalColor = 1, - OGLTextureUnitID_GColor, - OGLTextureUnitID_DepthStencil, - OGLTextureUnitID_GPolyID, - OGLTextureUnitID_FogAttr, - OGLTextureUnitID_PolyStates, - OGLTextureUnitID_LookupTable, -}; - -enum OGLBindingPointID -{ - OGLBindingPointID_RenderStates = 0, - OGLBindingPointID_PolyStates = 1 -}; - -enum OGLErrorCode -{ - OGLERROR_NOERR = RENDER3DERROR_NOERR, - - OGLERROR_DRIVER_VERSION_TOO_OLD, - - OGLERROR_BEGINGL_FAILED, - OGLERROR_CLIENT_RESIZE_ERROR, - - OGLERROR_FEATURE_UNSUPPORTED, - OGLERROR_VBO_UNSUPPORTED, - OGLERROR_PBO_UNSUPPORTED, - OGLERROR_SHADER_UNSUPPORTED, - OGLERROR_VAO_UNSUPPORTED, - OGLERROR_FBO_UNSUPPORTED, - OGLERROR_MULTISAMPLED_FBO_UNSUPPORTED, - - OGLERROR_VERTEX_SHADER_PROGRAM_LOAD_ERROR, - OGLERROR_FRAGMENT_SHADER_PROGRAM_LOAD_ERROR, - OGLERROR_SHADER_CREATE_ERROR, - - OGLERROR_FBO_CREATE_ERROR -}; - -enum OGLPolyDrawMode -{ - OGLPolyDrawMode_DrawOpaquePolys = 0, - OGLPolyDrawMode_DrawTranslucentPolys = 1, - OGLPolyDrawMode_ZeroAlphaPass = 2 -}; - -union GLvec2 -{ - GLfloat vec[2]; - struct { GLfloat x, y; }; -}; -typedef union GLvec2 GLvec2; - -union GLvec3 -{ - GLfloat vec[3]; - struct { GLfloat r, g, b; }; - struct { GLfloat x, y, z; }; -}; -typedef union GLvec3 GLvec3; - -union GLvec4 -{ - GLfloat vec[4]; - struct { GLfloat r, g, b, a; }; - struct { GLfloat x, y, z, w; }; -}; -typedef union GLvec4 GLvec4; - -struct OGLVertex -{ - GLvec4 position; - GLvec2 texCoord; - GLvec3 color; -}; -typedef struct OGLVertex OGLVertex; - -struct OGLRenderStates -{ - GLuint enableAntialiasing; - GLuint enableFogAlphaOnly; - GLuint clearPolyID; - GLfloat clearDepth; - GLfloat alphaTestRef; - GLfloat fogOffset; // Currently unused, kept to preserve alignment - GLfloat fogStep; // Currently unused, kept to preserve alignment - GLfloat pad_0; // This needs to be here to preserve alignment - GLvec4 fogColor; - GLvec4 edgeColor[8]; - GLvec4 toonColor[32]; -}; -typedef struct OGLRenderStates OGLRenderStates; - -union OGLPolyStates -{ - u32 packedState; - - struct - { - u8 PolygonID:6; - u8 PolygonMode:2; - - u8 PolygonAlpha:5; - u8 IsWireframe:1; - u8 EnableFog:1; - u8 SetNewDepthForTranslucent:1; - - u8 EnableTexture:1; - u8 TexSingleBitAlpha:1; - u8 TexSizeShiftS:3; - u8 TexSizeShiftT:3; - - u8 IsBackFacing:1; - u8 :7; - }; -}; -typedef union OGLPolyStates OGLPolyStates; - -union OGLGeometryFlags -{ - u8 value; - -#ifndef MSB_FIRST - struct - { - u8 EnableFog:1; - u8 EnableEdgeMark:1; - u8 OpaqueDrawMode:1; - u8 EnableWDepth:1; - u8 EnableAlphaTest:1; - u8 EnableTextureSampling:1; - u8 ToonShadingMode:1; - u8 unused:1; - }; - - struct - { - u8 DrawBuffersMode:3; - u8 :5; - }; -#else - struct - { - u8 unused:1; - u8 ToonShadingMode:1; - u8 EnableTextureSampling:1; - u8 EnableAlphaTest:1; - u8 EnableWDepth:1; - u8 OpaqueDrawMode:1; - u8 EnableEdgeMark:1; - u8 EnableFog:1; - }; - - struct - { - u8 :5; - u8 DrawBuffersMode:3; - }; -#endif -}; -typedef OGLGeometryFlags OGLGeometryFlags; - -union OGLFogProgramKey -{ - u32 key; - - struct - { - u16 offset; - u8 shift; - u8 :8; - }; -}; -typedef OGLFogProgramKey OGLFogProgramKey; - -struct OGLFogShaderID -{ - GLuint program; - GLuint fragShader; -}; -typedef OGLFogShaderID OGLFogShaderID; - -struct OGLRenderRef -{ - // OpenGL Feature Support - GLint stateTexMirroredRepeat; - - // VBO - GLuint vboGeometryVtxID; - GLuint iboGeometryIndexID; - GLuint vboPostprocessVtxID; - - // PBO - GLuint pboRenderDataID; - - // UBO / TBO - GLuint uboRenderStatesID; - GLuint uboPolyStatesID; - GLuint tboPolyStatesID; - GLuint texPolyStatesID; - - // FBO - GLuint texCIColorID; - GLuint texCIFogAttrID; - GLuint texCIDepthStencilID; - - GLuint texGColorID; - GLuint texGFogAttrID; - GLuint texGPolyID; - GLuint texGDepthStencilID; - GLuint texFinalColorID; - GLuint texFogDensityTableID; - GLuint texToonTableID; - GLuint texEdgeColorTableID; - GLuint texMSGColorID; - GLuint texMSGWorkingID; - - GLuint rboMSGColorID; - GLuint rboMSGWorkingID; - GLuint rboMSGPolyID; - GLuint rboMSGFogAttrID; - GLuint rboMSGDepthStencilID; - - GLuint fboClearImageID; - GLuint fboRenderID; - GLuint fboFramebufferFlipID; - GLuint fboMSIntermediateRenderID; - GLuint selectedRenderingFBO; - - // Shader states - GLuint vertexGeometryShaderID; - GLuint fragmentGeometryShaderID[128]; - GLuint programGeometryID[128]; - - GLuint vtxShaderGeometryZeroDstAlphaID; - GLuint fragShaderGeometryZeroDstAlphaID; - GLuint programGeometryZeroDstAlphaID; - - GLuint vtxShaderMSGeometryZeroDstAlphaID; - GLuint fragShaderMSGeometryZeroDstAlphaID; - GLuint programMSGeometryZeroDstAlphaID; - - GLuint vertexEdgeMarkShaderID; - GLuint vertexFogShaderID; - GLuint vertexFramebufferOutput6665ShaderID; - GLuint vertexFramebufferOutput8888ShaderID; - GLuint fragmentEdgeMarkShaderID; - GLuint fragmentFramebufferRGBA6665OutputShaderID; - GLuint fragmentFramebufferRGBA8888OutputShaderID; - GLuint programEdgeMarkID; - GLuint programFramebufferRGBA6665OutputID[2]; - GLuint programFramebufferRGBA8888OutputID[2]; - - GLint uniformStateEnableFogAlphaOnly; - GLint uniformStateClearPolyID; - GLint uniformStateClearDepth; - GLint uniformStateFogColor; - - GLint uniformStateAlphaTestRef[256]; - GLint uniformPolyTexScale[256]; - GLint uniformPolyMode[256]; - GLint uniformPolyIsWireframe[256]; - GLint uniformPolySetNewDepthForTranslucent[256]; - GLint uniformPolyAlpha[256]; - GLint uniformPolyID[256]; - - GLint uniformPolyEnableTexture[256]; - GLint uniformPolyEnableFog[256]; - GLint uniformTexSingleBitAlpha[256]; - GLint uniformTexDrawOpaque[256]; - GLint uniformDrawModeDepthEqualsTest[256]; - GLint uniformPolyIsBackFacing[256]; - - GLint uniformPolyStateIndex[256]; - GLfloat uniformPolyDepthOffset[256]; - GLint uniformPolyDrawShadow[256]; - - // VAO - GLuint vaoGeometryStatesID; - GLuint vaoPostprocessStatesID; - - // Client-side Buffers - GLfloat *position4fBuffer; - GLfloat *texCoord2fBuffer; - GLfloat *color4fBuffer; - CACHE_ALIGN GLushort vertIndexBuffer[OGLRENDER_VERT_INDEX_BUFFER_COUNT]; - CACHE_ALIGN GLushort workingCIColorBuffer[GPU_FRAMEBUFFER_NATIVE_WIDTH * GPU_FRAMEBUFFER_NATIVE_HEIGHT]; - CACHE_ALIGN GLuint workingCIDepthStencilBuffer[2][GPU_FRAMEBUFFER_NATIVE_WIDTH * GPU_FRAMEBUFFER_NATIVE_HEIGHT]; - CACHE_ALIGN GLuint workingCIFogAttributesBuffer[2][GPU_FRAMEBUFFER_NATIVE_WIDTH * GPU_FRAMEBUFFER_NATIVE_HEIGHT]; -}; -typedef struct OGLRenderRef OGLRenderRef; - -struct GFX3D_State; -struct POLY; -class OpenGLRenderer; - -extern GPU3DInterface gpu3Dgl; -extern GPU3DInterface gpu3DglOld; -extern GPU3DInterface gpu3Dgl_3_2; - -extern const GLenum GeometryDrawBuffersEnum[8][4]; -extern const GLint GeometryAttachmentWorkingBuffer[8]; -extern const GLint GeometryAttachmentPolyID[8]; -extern const GLint GeometryAttachmentFogAttributes[8]; - -extern CACHE_ALIGN const GLfloat divide5bitBy31_LUT[32]; -extern CACHE_ALIGN const GLfloat divide6bitBy63_LUT[64]; -extern const GLfloat PostprocessVtxBuffer[16]; -extern const GLubyte PostprocessElementBuffer[6]; - -//This is called by OGLRender whenever it initializes. -//Platforms, please be sure to set this up. -//return true if you successfully init. -extern bool (*oglrender_init)(); - -//This is called by OGLRender before it uses opengl. -//return true if youre OK with using opengl -extern bool (*oglrender_beginOpenGL)(); - -//This is called by OGLRender after it is done using opengl. -extern void (*oglrender_endOpenGL)(); - -//This is called by OGLRender whenever the framebuffer is resized. -extern bool (*oglrender_framebufferDidResizeCallback)(const bool isFBOSupported, size_t w, size_t h); - -// Helper functions for calling the above function pointers at the -// beginning and ending of OpenGL commands. -bool BEGINGL(); -void ENDGL(); - -// These functions need to be assigned by ports that support using an -// OpenGL 3.2 Core Profile context. The OGLRender_3_2.cpp file includes -// the corresponding functions to assign to each function pointer. -// -// If any of these functions are unassigned, then one of the legacy OpenGL -// renderers will be used instead. -extern void (*OGLLoadEntryPoints_3_2_Func)(); -extern void (*OGLCreateRenderer_3_2_Func)(OpenGLRenderer **rendererPtr); - -bool IsOpenGLDriverVersionSupported(unsigned int checkVersionMajor, unsigned int checkVersionMinor, unsigned int checkVersionRevision); - -class OpenGLTexture : public Render3DTexture -{ -protected: - GLuint _texID; - GLfloat _invSizeS; - GLfloat _invSizeT; - bool _isTexInited; - - u32 *_upscaleBuffer; - -public: - OpenGLTexture(TEXIMAGE_PARAM texAttributes, u32 palAttributes); - virtual ~OpenGLTexture(); - - virtual void Load(bool forceTextureInit); - - GLuint GetID() const; - GLfloat GetInvWidth() const; - GLfloat GetInvHeight() const; - - void SetUnpackBuffer(void *unpackBuffer); - void SetDeposterizeBuffer(void *dstBuffer, void *workingBuffer); - void SetUpscalingBuffer(void *upscaleBuffer); -}; - -#if defined(ENABLE_AVX2) -class OpenGLRenderer : public Render3D_AVX2 -#elif defined(ENABLE_SSE2) -class OpenGLRenderer : public Render3D_SSE2 -#elif defined(ENABLE_NEON_A64) -class OpenGLRenderer : public Render3D_NEON -#elif defined(ENABLE_ALTIVEC) -class OpenGLRenderer : public Render3D_AltiVec -#else -class OpenGLRenderer : public Render3D -#endif -{ -private: - // Driver's OpenGL Version - unsigned int versionMajor; - unsigned int versionMinor; - unsigned int versionRevision; - -private: - Render3DError _FlushFramebufferFlipAndConvertOnCPU(const Color4u8 *__restrict srcFramebuffer, - Color4u8 *__restrict dstFramebufferMain, u16 *__restrict dstFramebuffer16, - bool doFramebufferFlip, bool doFramebufferConvert); - -protected: - // OpenGL-specific References - OGLRenderRef *ref; - - // OpenGL Feature Support - bool isVBOSupported; - bool isPBOSupported; - bool isFBOSupported; - bool isMultisampledFBOSupported; - bool isShaderSupported; - bool isVAOSupported; - bool willFlipOnlyFramebufferOnGPU; - bool willFlipAndConvertFramebufferOnGPU; - bool willUsePerSampleZeroDstPass; - - bool _emulateShadowPolygon; - bool _emulateSpecialZeroAlphaBlending; - bool _emulateNDSDepthCalculation; - bool _emulateDepthLEqualPolygonFacing; - bool _isDepthLEqualPolygonFacingSupported; - - Color4u8 *_mappedFramebuffer; - Color4u8 *_workingTextureUnpackBuffer; - bool _pixelReadNeedsFinish; - bool _needsZeroDstAlphaPass; - size_t _currentPolyIndex; - bool _enableAlphaBlending; - OGLTextureUnitID _lastTextureDrawTarget; - OGLGeometryFlags _geometryProgramFlags; - OGLFogProgramKey _fogProgramKey; - std::map _fogProgramMap; - - CACHE_ALIGN OGLRenderStates _pendingRenderStates; - - bool _enableMultisampledRendering; - int _selectedMultisampleSize; - size_t _clearImageIndex; - - Render3DError FlushFramebuffer(const Color4u8 *__restrict srcFramebuffer, Color4u8 *__restrict dstFramebufferMain, u16 *__restrict dstFramebuffer16); - OpenGLTexture* GetLoadedTextureFromPolygon(const POLY &thePoly, bool enableTexturing); - - template size_t DrawPolygonsForIndexRange(const POLY *rawPolyList, const CPoly *clippedPolyList, const size_t clippedPolyCount, size_t firstIndex, size_t lastIndex, size_t &indexOffset, POLYGON_ATTR &lastPolyAttr); - template Render3DError DrawAlphaTexturePolygon(const GLenum polyPrimitive, - const GLsizei vertIndexCount, - const GLushort *indexBufferPtr, - const bool performDepthEqualTest, - const bool enableAlphaDepthWrite, - const bool canHaveOpaqueFragments, - const u8 opaquePolyID, - const bool isPolyFrontFacing); - template Render3DError DrawOtherPolygon(const GLenum polyPrimitive, - const GLsizei vertIndexCount, - const GLushort *indexBufferPtr, - const bool performDepthEqualTest, - const bool enableAlphaDepthWrite, - const u8 opaquePolyID, - const bool isPolyFrontFacing); - - // OpenGL-specific methods - virtual Render3DError CreateVBOs() = 0; - virtual void DestroyVBOs() = 0; - virtual Render3DError CreatePBOs() = 0; - virtual void DestroyPBOs() = 0; - virtual Render3DError CreateFBOs() = 0; - virtual void DestroyFBOs() = 0; - virtual Render3DError CreateMultisampledFBO(GLsizei numSamples) = 0; - virtual void DestroyMultisampledFBO() = 0; - virtual void ResizeMultisampledFBOs(GLsizei numSamples) = 0; - virtual Render3DError CreateVAOs() = 0; - virtual void DestroyVAOs() = 0; - - virtual Render3DError CreateGeometryPrograms() = 0; - virtual void DestroyGeometryPrograms() = 0; - virtual Render3DError CreateGeometryZeroDstAlphaProgram(const char *vtxShaderCString, const char *fragShaderCString) = 0; - virtual void DestroyGeometryZeroDstAlphaProgram() = 0; - virtual Render3DError CreateEdgeMarkProgram(const char *vtxShaderCString, const char *fragShaderCString) = 0; - virtual void DestroyEdgeMarkProgram() = 0; - virtual Render3DError CreateFogProgram(const OGLFogProgramKey fogProgramKey, const char *vtxShaderCString, const char *fragShaderCString) = 0; - virtual void DestroyFogProgram(const OGLFogProgramKey fogProgramKey) = 0; - virtual void DestroyFogPrograms() = 0; - virtual Render3DError CreateFramebufferOutput6665Program(const size_t outColorIndex, const char *vtxShaderCString, const char *fragShaderCString) = 0; - virtual void DestroyFramebufferOutput6665Programs() = 0; - virtual Render3DError CreateFramebufferOutput8888Program(const size_t outColorIndex, const char *vtxShaderCString, const char *fragShaderCString) = 0; - virtual void DestroyFramebufferOutput8888Programs() = 0; - - virtual Render3DError InitFinalRenderStates(const std::set *oglExtensionSet) = 0; - virtual Render3DError InitPostprocessingPrograms(const char *edgeMarkVtxShader, - const char *edgeMarkFragShader, - const char *framebufferOutputVtxShader, - const char *framebufferOutputRGBA6665FragShader, - const char *framebufferOutputRGBA8888FragShader) = 0; - - virtual Render3DError UploadClearImage(const u16 *__restrict colorBuffer, const u32 *__restrict depthBuffer, const u8 *__restrict fogBuffer, const u8 opaquePolyID) = 0; - - virtual void GetExtensionSet(std::set *oglExtensionSet) = 0; - virtual void _SetupGeometryShaders(const OGLGeometryFlags flags) = 0; - virtual Render3DError EnableVertexAttributes() = 0; - virtual Render3DError DisableVertexAttributes() = 0; - virtual void _ResolveWorkingBackFacing() = 0; - virtual void _ResolveGeometry() = 0; - virtual Render3DError ReadBackPixels() = 0; - - virtual Render3DError DrawShadowPolygon(const GLenum polyPrimitive, const GLsizei vertIndexCount, const GLushort *indexBufferPtr, const bool performDepthEqualTest, const bool enableAlphaDepthWrite, const bool isTranslucent, const u8 opaquePolyID) = 0; - virtual void SetPolygonIndex(const size_t index) = 0; - virtual Render3DError SetupPolygon(const POLY &thePoly, bool treatAsTranslucent, bool willChangeStencilBuffer, bool isBackFacing) = 0; - -public: - OpenGLRenderer(); - virtual ~OpenGLRenderer(); - - virtual Render3DError InitExtensions() = 0; - - bool IsExtensionPresent(const std::set *oglExtensionSet, const std::string extensionName) const; - Render3DError ShaderProgramCreate(GLuint &vtxShaderID, - GLuint &fragShaderID, - GLuint &programID, - const char *vtxShaderCString, - const char *fragShaderCString); - bool ValidateShaderCompile(GLenum shaderType, GLuint theShader) const; - bool ValidateShaderProgramLink(GLuint theProgram) const; - void GetVersion(unsigned int *major, unsigned int *minor, unsigned int *revision) const; - void SetVersion(unsigned int major, unsigned int minor, unsigned int revision); - bool IsVersionSupported(unsigned int checkVersionMajor, unsigned int checkVersionMinor, unsigned int checkVersionRevision) const; - - virtual Color4u8* GetFramebuffer(); - virtual GLsizei GetLimitedMultisampleSize() const; - - Render3DError ApplyRenderingSettings(const GFX3D_State &renderState); -}; - -class OpenGLRenderer_1_2 : public OpenGLRenderer -{ -protected: - // OpenGL-specific methods - virtual Render3DError CreateVBOs(); - virtual void DestroyVBOs(); - virtual Render3DError CreatePBOs(); - virtual void DestroyPBOs(); - virtual Render3DError CreateFBOs(); - virtual void DestroyFBOs(); - virtual Render3DError CreateMultisampledFBO(GLsizei numSamples); - virtual void DestroyMultisampledFBO(); - virtual void ResizeMultisampledFBOs(GLsizei numSamples); - virtual Render3DError CreateVAOs(); - virtual void DestroyVAOs(); - - virtual Render3DError CreateGeometryPrograms(); - virtual void DestroyGeometryPrograms(); - virtual Render3DError CreateGeometryZeroDstAlphaProgram(const char *vtxShaderCString, const char *fragShaderCString); - virtual void DestroyGeometryZeroDstAlphaProgram(); - virtual Render3DError CreateEdgeMarkProgram(const char *vtxShaderCString, const char *fragShaderCString); - virtual void DestroyEdgeMarkProgram(); - virtual Render3DError CreateFogProgram(const OGLFogProgramKey fogProgramKey, const char *vtxShaderCString, const char *fragShaderCString); - virtual void DestroyFogProgram(const OGLFogProgramKey fogProgramKey); - virtual void DestroyFogPrograms(); - virtual Render3DError CreateFramebufferOutput6665Program(const size_t outColorIndex, const char *vtxShaderCString, const char *fragShaderCString); - virtual void DestroyFramebufferOutput6665Programs(); - virtual Render3DError CreateFramebufferOutput8888Program(const size_t outColorIndex, const char *vtxShaderCString, const char *fragShaderCString); - virtual void DestroyFramebufferOutput8888Programs(); - - virtual Render3DError InitFinalRenderStates(const std::set *oglExtensionSet); - virtual Render3DError InitPostprocessingPrograms(const char *edgeMarkVtxShader, - const char *edgeMarkFragShader, - const char *framebufferOutputVtxShader, - const char *framebufferOutputRGBA6665FragShader, - const char *framebufferOutputRGBA8888FragShader); - - virtual Render3DError UploadClearImage(const u16 *__restrict colorBuffer, const u32 *__restrict depthBuffer, const u8 *__restrict fogBuffer, const u8 opaquePolyID); - - virtual void GetExtensionSet(std::set *oglExtensionSet); - virtual void _SetupGeometryShaders(const OGLGeometryFlags flags); - virtual Render3DError EnableVertexAttributes(); - virtual Render3DError DisableVertexAttributes(); - virtual Render3DError ZeroDstAlphaPass(const POLY *rawPolyList, const CPoly *clippedPolyList, const size_t clippedPolyCount, const size_t clippedPolyOpaqueCount, bool enableAlphaBlending, size_t indexOffset, POLYGON_ATTR lastPolyAttr); - virtual void _ResolveWorkingBackFacing(); - virtual void _ResolveGeometry(); - virtual Render3DError ReadBackPixels(); - - // Base rendering methods - virtual Render3DError BeginRender(const GFX3D_State &renderState, const GFX3D_GeometryList &renderGList); - virtual Render3DError RenderGeometry(); - virtual Render3DError PostprocessFramebuffer(); - virtual Render3DError EndRender(); - - virtual Render3DError ClearUsingImage(const u16 *__restrict colorBuffer, const u32 *__restrict depthBuffer, const u8 *__restrict fogBuffer, const u8 opaquePolyID); - virtual Render3DError ClearUsingValues(const Color4u8 &clearColor6665, const FragmentAttributes &clearAttributes); - - virtual void SetPolygonIndex(const size_t index); - virtual Render3DError SetupPolygon(const POLY &thePoly, bool treatAsTranslucent, bool willChangeStencilBuffer, bool isBackFacing); - virtual Render3DError SetupTexture(const POLY &thePoly, size_t polyRenderIndex); - virtual Render3DError SetupViewport(const GFX3D_Viewport viewport); - - virtual Render3DError DrawShadowPolygon(const GLenum polyPrimitive, const GLsizei vertIndexCount, const GLushort *indexBufferPtr, const bool performDepthEqualTest, const bool enableAlphaDepthWrite, const bool isTranslucent, const u8 opaquePolyID); - -public: - ~OpenGLRenderer_1_2(); - - virtual Render3DError InitExtensions(); - virtual Render3DError Reset(); - virtual Render3DError RenderPowerOff(); - virtual Render3DError RenderFinish(); - virtual Render3DError RenderFlush(bool willFlushBuffer32, bool willFlushBuffer16); - virtual Render3DError SetFramebufferSize(size_t w, size_t h); -}; - -class OpenGLRenderer_2_0 : public OpenGLRenderer_1_2 -{ -protected: - virtual Render3DError InitFinalRenderStates(const std::set *oglExtensionSet); - - virtual Render3DError EnableVertexAttributes(); - virtual Render3DError DisableVertexAttributes(); - - virtual Render3DError BeginRender(const GFX3D_State &renderState, const GFX3D_GeometryList &renderGList); - - virtual Render3DError SetupTexture(const POLY &thePoly, size_t polyRenderIndex); -}; - -class OpenGLRenderer_2_1 : public OpenGLRenderer_2_0 -{ -public: - virtual Render3DError RenderFinish(); - virtual Render3DError RenderFlush(bool willFlushBuffer32, bool willFlushBuffer16); -}; - -#endif +/* + Copyright (C) 2006 yopyop + Copyright (C) 2006-2007 shash + Copyright (C) 2008-2023 DeSmuME team + + This file is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 2 of the License, or + (at your option) any later version. + + This file is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with the this software. If not, see . +*/ + +#ifndef OGLRENDER_H +#define OGLRENDER_H + +#include +#include +#include +#include +#include "render3D.h" +#include "types.h" + +#ifndef OGLRENDER_3_2_H + +#if defined(_WIN32) + #define WIN32_LEAN_AND_MEAN + #include + #include + #include + + #define OGLEXT(procPtr, func) procPtr func = NULL; + #define INITOGLEXT(procPtr, func) func = (procPtr)wglGetProcAddress(#func); + #define EXTERNOGLEXT(procPtr, func) extern procPtr func; +#elif defined(__APPLE__) + #include + #include + + // Ignore dynamic linking on Apple OS + #define OGLEXT(procPtr, func) + #define INITOGLEXT(procPtr, func) + #define EXTERNOGLEXT(procPtr, func) + + // We're not exactly committing to OpenGL 3.2 Core Profile just yet, so redefine APPLE + // extensions as a temporary measure. + #if defined(GL_APPLE_vertex_array_object) && !defined(GL_ARB_vertex_array_object) + #define glGenVertexArrays(n, ids) glGenVertexArraysAPPLE(n, ids) + #define glBindVertexArray(id) glBindVertexArrayAPPLE(id) + #define glDeleteVertexArrays(n, ids) glDeleteVertexArraysAPPLE(n, ids) + #endif +#else + #include + #include + #include + + /* This is a workaround needed to compile against nvidia GL headers */ + #ifndef GL_ALPHA_BLEND_EQUATION_ATI + #undef GL_VERSION_1_3 + #endif + + #define OGLEXT(procPtr, func) procPtr func = NULL; + #define INITOGLEXT(procPtr, func) func = (procPtr)glXGetProcAddress((const GLubyte *) #func); + #define EXTERNOGLEXT(procPtr, func) extern procPtr func; +#endif + +// Check minimum OpenGL header version +#if !defined(GL_VERSION_2_1) + #if defined(GL_VERSION_2_0) + #warning Using OpenGL v2.0 headers with v2.1 overrides. Some features will be disabled. + + #if !defined(GL_ARB_framebuffer_object) + // Overrides for GL_EXT_framebuffer_blit + #if !defined(GL_EXT_framebuffer_blit) + #define GL_READ_FRAMEBUFFER_EXT GL_FRAMEBUFFER_EXT + #define GL_DRAW_FRAMEBUFFER_EXT GL_FRAMEBUFFER_EXT + #define glBlitFramebufferEXT(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter) + #endif + + // Overrides for GL_EXT_framebuffer_multisample + #if !defined(GL_EXT_framebuffer_multisample) + #define GL_MAX_SAMPLES_EXT 0 + #define glRenderbufferStorageMultisampleEXT(target, samples, internalformat, width, height) + #endif + + // Overrides for GL_ARB_pixel_buffer_object + #if !defined(GL_PIXEL_PACK_BUFFER) && defined(GL_PIXEL_PACK_BUFFER_ARB) + #define GL_PIXEL_PACK_BUFFER GL_PIXEL_PACK_BUFFER_ARB + #endif + #endif + #else + #error OpenGL requires v2.1 headers or later. + #endif +#endif + +// Textures +#if !defined(GLX_H) +EXTERNOGLEXT(PFNGLACTIVETEXTUREPROC, glActiveTexture) // Core in v1.3 +EXTERNOGLEXT(PFNGLACTIVETEXTUREARBPROC, glActiveTextureARB) +#endif + +// Blending +#if !defined(GLX_H) +EXTERNOGLEXT(PFNGLBLENDEQUATIONPROC, glBlendEquation) // Core in v1.2 +#endif +EXTERNOGLEXT(PFNGLBLENDFUNCSEPARATEPROC, glBlendFuncSeparate) // Core in v1.4 +EXTERNOGLEXT(PFNGLBLENDEQUATIONSEPARATEPROC, glBlendEquationSeparate) // Core in v2.0 + +EXTERNOGLEXT(PFNGLBLENDFUNCSEPARATEEXTPROC, glBlendFuncSeparateEXT) +EXTERNOGLEXT(PFNGLBLENDEQUATIONSEPARATEEXTPROC, glBlendEquationSeparateEXT) + +// Shaders +EXTERNOGLEXT(PFNGLCREATESHADERPROC, glCreateShader) // Core in v2.0 +EXTERNOGLEXT(PFNGLSHADERSOURCEPROC, glShaderSource) // Core in v2.0 +EXTERNOGLEXT(PFNGLCOMPILESHADERPROC, glCompileShader) // Core in v2.0 +EXTERNOGLEXT(PFNGLCREATEPROGRAMPROC, glCreateProgram) // Core in v2.0 +EXTERNOGLEXT(PFNGLATTACHSHADERPROC, glAttachShader) // Core in v2.0 +EXTERNOGLEXT(PFNGLDETACHSHADERPROC, glDetachShader) // Core in v2.0 +EXTERNOGLEXT(PFNGLLINKPROGRAMPROC, glLinkProgram) // Core in v2.0 +EXTERNOGLEXT(PFNGLUSEPROGRAMPROC, glUseProgram) // Core in v2.0 +EXTERNOGLEXT(PFNGLGETSHADERIVPROC, glGetShaderiv) // Core in v2.0 +EXTERNOGLEXT(PFNGLGETSHADERINFOLOGPROC, glGetShaderInfoLog) // Core in v2.0 +EXTERNOGLEXT(PFNGLDELETESHADERPROC, glDeleteShader) // Core in v2.0 +EXTERNOGLEXT(PFNGLDELETEPROGRAMPROC, glDeleteProgram) // Core in v2.0 +EXTERNOGLEXT(PFNGLGETPROGRAMIVPROC, glGetProgramiv) // Core in v2.0 +EXTERNOGLEXT(PFNGLGETPROGRAMINFOLOGPROC, glGetProgramInfoLog) // Core in v2.0 +EXTERNOGLEXT(PFNGLVALIDATEPROGRAMPROC, glValidateProgram) // Core in v2.0 +EXTERNOGLEXT(PFNGLGETUNIFORMLOCATIONPROC, glGetUniformLocation) // Core in v2.0 +EXTERNOGLEXT(PFNGLUNIFORM1IPROC, glUniform1i) // Core in v2.0 +EXTERNOGLEXT(PFNGLUNIFORM1IVPROC, glUniform1iv) // Core in v2.0 +EXTERNOGLEXT(PFNGLUNIFORM1FPROC, glUniform1f) // Core in v2.0 +EXTERNOGLEXT(PFNGLUNIFORM1FVPROC, glUniform1fv) // Core in v2.0 +EXTERNOGLEXT(PFNGLUNIFORM2FPROC, glUniform2f) // Core in v2.0 +EXTERNOGLEXT(PFNGLUNIFORM4FPROC, glUniform4f) // Core in v2.0 +EXTERNOGLEXT(PFNGLUNIFORM4FVPROC, glUniform4fv) // Core in v2.0 +EXTERNOGLEXT(PFNGLDRAWBUFFERSPROC, glDrawBuffers) // Core in v2.0 + +// Generic vertex attributes +EXTERNOGLEXT(PFNGLBINDATTRIBLOCATIONPROC, glBindAttribLocation) // Core in v2.0 +EXTERNOGLEXT(PFNGLENABLEVERTEXATTRIBARRAYPROC, glEnableVertexAttribArray) // Core in v2.0 +EXTERNOGLEXT(PFNGLDISABLEVERTEXATTRIBARRAYPROC, glDisableVertexAttribArray) // Core in v2.0 +EXTERNOGLEXT(PFNGLVERTEXATTRIBPOINTERPROC, glVertexAttribPointer) // Core in v2.0 + +// VAO +EXTERNOGLEXT(PFNGLGENVERTEXARRAYSPROC, glGenVertexArrays) +EXTERNOGLEXT(PFNGLDELETEVERTEXARRAYSPROC, glDeleteVertexArrays) +EXTERNOGLEXT(PFNGLBINDVERTEXARRAYPROC, glBindVertexArray) + +// VBO and PBO +EXTERNOGLEXT(PFNGLGENBUFFERSARBPROC, glGenBuffersARB) +EXTERNOGLEXT(PFNGLDELETEBUFFERSARBPROC, glDeleteBuffersARB) +EXTERNOGLEXT(PFNGLBINDBUFFERARBPROC, glBindBufferARB) +EXTERNOGLEXT(PFNGLBUFFERDATAARBPROC, glBufferDataARB) +EXTERNOGLEXT(PFNGLBUFFERSUBDATAARBPROC, glBufferSubDataARB) +EXTERNOGLEXT(PFNGLMAPBUFFERARBPROC, glMapBufferARB) +EXTERNOGLEXT(PFNGLUNMAPBUFFERARBPROC, glUnmapBufferARB) + +EXTERNOGLEXT(PFNGLGENBUFFERSPROC, glGenBuffers) // Core in v1.5 +EXTERNOGLEXT(PFNGLDELETEBUFFERSPROC, glDeleteBuffers) // Core in v1.5 +EXTERNOGLEXT(PFNGLBINDBUFFERPROC, glBindBuffer) // Core in v1.5 +EXTERNOGLEXT(PFNGLBUFFERDATAPROC, glBufferData) // Core in v1.5 +EXTERNOGLEXT(PFNGLBUFFERSUBDATAPROC, glBufferSubData) // Core in v1.5 +EXTERNOGLEXT(PFNGLMAPBUFFERPROC, glMapBuffer) // Core in v1.5 +EXTERNOGLEXT(PFNGLUNMAPBUFFERPROC, glUnmapBuffer) // Core in v1.5 + +// FBO +EXTERNOGLEXT(PFNGLGENFRAMEBUFFERSEXTPROC, glGenFramebuffersEXT) +EXTERNOGLEXT(PFNGLBINDFRAMEBUFFEREXTPROC, glBindFramebufferEXT) +EXTERNOGLEXT(PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC, glFramebufferRenderbufferEXT) +EXTERNOGLEXT(PFNGLFRAMEBUFFERTEXTURE2DEXTPROC, glFramebufferTexture2DEXT) +EXTERNOGLEXT(PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC, glCheckFramebufferStatusEXT) +EXTERNOGLEXT(PFNGLDELETEFRAMEBUFFERSEXTPROC, glDeleteFramebuffersEXT) +EXTERNOGLEXT(PFNGLBLITFRAMEBUFFEREXTPROC, glBlitFramebufferEXT) + +// Multisampled FBO +EXTERNOGLEXT(PFNGLGENRENDERBUFFERSEXTPROC, glGenRenderbuffersEXT) +EXTERNOGLEXT(PFNGLBINDRENDERBUFFEREXTPROC, glBindRenderbufferEXT) +EXTERNOGLEXT(PFNGLRENDERBUFFERSTORAGEEXTPROC, glRenderbufferStorageEXT) +EXTERNOGLEXT(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC, glRenderbufferStorageMultisampleEXT) +EXTERNOGLEXT(PFNGLDELETERENDERBUFFERSEXTPROC, glDeleteRenderbuffersEXT) + +#else // OGLRENDER_3_2_H + +// Basic Functions +EXTERNOGLEXT(PFNGLGETSTRINGIPROC, glGetStringi) // Core in v3.0 +EXTERNOGLEXT(PFNGLCLEARBUFFERFVPROC, glClearBufferfv) // Core in v3.0 +EXTERNOGLEXT(PFNGLCLEARBUFFERFIPROC, glClearBufferfi) // Core in v3.0 + +// Textures +#if !defined(GLX_H) +EXTERNOGLEXT(PFNGLACTIVETEXTUREPROC, glActiveTexture) // Core in v1.3 +#endif + +// Blending +#if !defined(GLX_H) +EXTERNOGLEXT(PFNGLBLENDEQUATIONPROC, glBlendEquation) // Core in v1.2 +#endif +EXTERNOGLEXT(PFNGLBLENDFUNCSEPARATEPROC, glBlendFuncSeparate) // Core in v1.4 +EXTERNOGLEXT(PFNGLBLENDEQUATIONSEPARATEPROC, glBlendEquationSeparate) // Core in v2.0 + +// Shaders +EXTERNOGLEXT(PFNGLCREATESHADERPROC, glCreateShader) // Core in v2.0 +EXTERNOGLEXT(PFNGLSHADERSOURCEPROC, glShaderSource) // Core in v2.0 +EXTERNOGLEXT(PFNGLCOMPILESHADERPROC, glCompileShader) // Core in v2.0 +EXTERNOGLEXT(PFNGLCREATEPROGRAMPROC, glCreateProgram) // Core in v2.0 +EXTERNOGLEXT(PFNGLATTACHSHADERPROC, glAttachShader) // Core in v2.0 +EXTERNOGLEXT(PFNGLDETACHSHADERPROC, glDetachShader) // Core in v2.0 +EXTERNOGLEXT(PFNGLLINKPROGRAMPROC, glLinkProgram) // Core in v2.0 +EXTERNOGLEXT(PFNGLUSEPROGRAMPROC, glUseProgram) // Core in v2.0 +EXTERNOGLEXT(PFNGLGETSHADERIVPROC, glGetShaderiv) // Core in v2.0 +EXTERNOGLEXT(PFNGLGETSHADERINFOLOGPROC, glGetShaderInfoLog) // Core in v2.0 +EXTERNOGLEXT(PFNGLDELETESHADERPROC, glDeleteShader) // Core in v2.0 +EXTERNOGLEXT(PFNGLDELETEPROGRAMPROC, glDeleteProgram) // Core in v2.0 +EXTERNOGLEXT(PFNGLGETPROGRAMIVPROC, glGetProgramiv) // Core in v2.0 +EXTERNOGLEXT(PFNGLGETPROGRAMINFOLOGPROC, glGetProgramInfoLog) // Core in v2.0 +EXTERNOGLEXT(PFNGLVALIDATEPROGRAMPROC, glValidateProgram) // Core in v2.0 +EXTERNOGLEXT(PFNGLGETUNIFORMLOCATIONPROC, glGetUniformLocation) // Core in v2.0 +EXTERNOGLEXT(PFNGLUNIFORM1IPROC, glUniform1i) // Core in v2.0 +EXTERNOGLEXT(PFNGLUNIFORM1IVPROC, glUniform1iv) // Core in v2.0 +EXTERNOGLEXT(PFNGLUNIFORM1FPROC, glUniform1f) // Core in v2.0 +EXTERNOGLEXT(PFNGLUNIFORM1FVPROC, glUniform1fv) // Core in v2.0 +EXTERNOGLEXT(PFNGLUNIFORM2FPROC, glUniform2f) // Core in v2.0 +EXTERNOGLEXT(PFNGLUNIFORM4FPROC, glUniform4f) // Core in v2.0 +EXTERNOGLEXT(PFNGLUNIFORM4FVPROC, glUniform4fv) // Core in v2.0 +EXTERNOGLEXT(PFNGLDRAWBUFFERSPROC, glDrawBuffers) // Core in v2.0 + +// Generic vertex attributes +EXTERNOGLEXT(PFNGLBINDATTRIBLOCATIONPROC, glBindAttribLocation) // Core in v2.0 +EXTERNOGLEXT(PFNGLBINDFRAGDATALOCATIONPROC, glBindFragDataLocation) // Core in v3.0 +EXTERNOGLEXT(PFNGLBINDFRAGDATALOCATIONINDEXEDPROC, glBindFragDataLocationIndexed) // Core in v3.3 +EXTERNOGLEXT(PFNGLENABLEVERTEXATTRIBARRAYPROC, glEnableVertexAttribArray) // Core in v2.0 +EXTERNOGLEXT(PFNGLDISABLEVERTEXATTRIBARRAYPROC, glDisableVertexAttribArray) // Core in v2.0 +EXTERNOGLEXT(PFNGLVERTEXATTRIBPOINTERPROC, glVertexAttribPointer) // Core in v2.0 + +// VAO +EXTERNOGLEXT(PFNGLGENVERTEXARRAYSPROC, glGenVertexArrays) // Core in v3.0 +EXTERNOGLEXT(PFNGLDELETEVERTEXARRAYSPROC, glDeleteVertexArrays) // Core in v3.0 +EXTERNOGLEXT(PFNGLBINDVERTEXARRAYPROC, glBindVertexArray) // Core in v3.0 + +// VBO and PBO +EXTERNOGLEXT(PFNGLGENBUFFERSPROC, glGenBuffers) // Core in v1.5 +EXTERNOGLEXT(PFNGLDELETEBUFFERSPROC, glDeleteBuffers) // Core in v1.5 +EXTERNOGLEXT(PFNGLBINDBUFFERPROC, glBindBuffer) // Core in v1.5 +EXTERNOGLEXT(PFNGLBUFFERDATAPROC, glBufferData) // Core in v1.5 +EXTERNOGLEXT(PFNGLBUFFERSUBDATAPROC, glBufferSubData) // Core in v1.5 +EXTERNOGLEXT(PFNGLMAPBUFFERPROC, glMapBuffer) // Core in v1.5 +EXTERNOGLEXT(PFNGLUNMAPBUFFERPROC, glUnmapBuffer) // Core in v1.5 + +// Buffer Objects +EXTERNOGLEXT(PFNGLMAPBUFFERRANGEPROC, glMapBufferRange) // Core in v3.0 + +// FBO +EXTERNOGLEXT(PFNGLGENFRAMEBUFFERSPROC, glGenFramebuffers) // Core in v3.0 +EXTERNOGLEXT(PFNGLBINDFRAMEBUFFERPROC, glBindFramebuffer) // Core in v3.0 +EXTERNOGLEXT(PFNGLFRAMEBUFFERRENDERBUFFERPROC, glFramebufferRenderbuffer) // Core in v3.0 +EXTERNOGLEXT(PFNGLFRAMEBUFFERTEXTURE2DPROC, glFramebufferTexture2D) // Core in v3.0 +EXTERNOGLEXT(PFNGLCHECKFRAMEBUFFERSTATUSPROC, glCheckFramebufferStatus) // Core in v3.0 +EXTERNOGLEXT(PFNGLDELETEFRAMEBUFFERSPROC, glDeleteFramebuffers) // Core in v3.0 +EXTERNOGLEXT(PFNGLBLITFRAMEBUFFERPROC, glBlitFramebuffer) // Core in v3.0 +EXTERNOGLEXT(PFNGLDRAWBUFFERSPROC, glDrawBuffers) // Core in v2.0 + +// Multisampled FBO +EXTERNOGLEXT(PFNGLGENRENDERBUFFERSPROC, glGenRenderbuffers) // Core in v3.0 +EXTERNOGLEXT(PFNGLBINDRENDERBUFFERPROC, glBindRenderbuffer) // Core in v3.0 +EXTERNOGLEXT(PFNGLRENDERBUFFERSTORAGEPROC, glRenderbufferStorage) // Core in v3.0 +EXTERNOGLEXT(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC, glRenderbufferStorageMultisample) // Core in v3.0 +EXTERNOGLEXT(PFNGLDELETERENDERBUFFERSPROC, glDeleteRenderbuffers) // Core in v3.0 +EXTERNOGLEXT(PFNGLTEXIMAGE2DMULTISAMPLEPROC, glTexImage2DMultisample) // Core in v3.2 + +// UBO +EXTERNOGLEXT(PFNGLGETUNIFORMBLOCKINDEXPROC, glGetUniformBlockIndex) // Core in v3.1 +EXTERNOGLEXT(PFNGLUNIFORMBLOCKBINDINGPROC, glUniformBlockBinding) // Core in v3.1 +EXTERNOGLEXT(PFNGLBINDBUFFERBASEPROC, glBindBufferBase) // Core in v3.0 +EXTERNOGLEXT(PFNGLGETACTIVEUNIFORMBLOCKIVPROC, glGetActiveUniformBlockiv) // Core in v3.1 + +// TBO +EXTERNOGLEXT(PFNGLTEXBUFFERPROC, glTexBuffer) // Core in v3.1 + +// Sync Objects +EXTERNOGLEXT(PFNGLFENCESYNCPROC, glFenceSync) // Core in v3.2 +EXTERNOGLEXT(PFNGLWAITSYNCPROC, glWaitSync) // Core in v3.2 +EXTERNOGLEXT(PFNGLDELETESYNCPROC, glDeleteSync) // Core in v3.2 + +#endif // OGLRENDER_3_2_H + +// Define the minimum required OpenGL version for the driver to support +#define OGLRENDER_MINIMUM_DRIVER_VERSION_REQUIRED_MAJOR 1 +#define OGLRENDER_MINIMUM_DRIVER_VERSION_REQUIRED_MINOR 2 +#define OGLRENDER_MINIMUM_DRIVER_VERSION_REQUIRED_REVISION 0 + +#define OGLRENDER_VERT_INDEX_BUFFER_COUNT (CLIPPED_POLYLIST_SIZE * 6) + +// Assign the FBO attachments for the main geometry render +#ifdef OGLRENDER_3_2_H + #define GL_COLOROUT_ATTACHMENT_ID GL_COLOR_ATTACHMENT0 + #define GL_WORKING_ATTACHMENT_ID GL_COLOR_ATTACHMENT3 + #define GL_POLYID_ATTACHMENT_ID GL_COLOR_ATTACHMENT1 + #define GL_FOGATTRIBUTES_ATTACHMENT_ID GL_COLOR_ATTACHMENT2 +#else + #define GL_COLOROUT_ATTACHMENT_ID GL_COLOR_ATTACHMENT0_EXT + #define GL_WORKING_ATTACHMENT_ID GL_COLOR_ATTACHMENT3_EXT + #define GL_POLYID_ATTACHMENT_ID GL_COLOR_ATTACHMENT1_EXT + #define GL_FOGATTRIBUTES_ATTACHMENT_ID GL_COLOR_ATTACHMENT2_EXT +#endif + +enum OGLVertexAttributeID +{ + OGLVertexAttributeID_Position = 0, + OGLVertexAttributeID_TexCoord0 = 8, + OGLVertexAttributeID_Color = 3 +}; + +enum OGLTextureUnitID +{ + // Main textures will always be on texture unit 0. + OGLTextureUnitID_FinalColor = 1, + OGLTextureUnitID_GColor, + OGLTextureUnitID_DepthStencil, + OGLTextureUnitID_GPolyID, + OGLTextureUnitID_FogAttr, + OGLTextureUnitID_PolyStates, + OGLTextureUnitID_LookupTable, +}; + +enum OGLBindingPointID +{ + OGLBindingPointID_RenderStates = 0, + OGLBindingPointID_PolyStates = 1 +}; + +enum OGLErrorCode +{ + OGLERROR_NOERR = RENDER3DERROR_NOERR, + + OGLERROR_DRIVER_VERSION_TOO_OLD, + + OGLERROR_BEGINGL_FAILED, + OGLERROR_CLIENT_RESIZE_ERROR, + + OGLERROR_FEATURE_UNSUPPORTED, + OGLERROR_VBO_UNSUPPORTED, + OGLERROR_PBO_UNSUPPORTED, + OGLERROR_SHADER_UNSUPPORTED, + OGLERROR_VAO_UNSUPPORTED, + OGLERROR_FBO_UNSUPPORTED, + OGLERROR_MULTISAMPLED_FBO_UNSUPPORTED, + + OGLERROR_VERTEX_SHADER_PROGRAM_LOAD_ERROR, + OGLERROR_FRAGMENT_SHADER_PROGRAM_LOAD_ERROR, + OGLERROR_SHADER_CREATE_ERROR, + + OGLERROR_FBO_CREATE_ERROR +}; + +enum OGLPolyDrawMode +{ + OGLPolyDrawMode_DrawOpaquePolys = 0, + OGLPolyDrawMode_DrawTranslucentPolys = 1, + OGLPolyDrawMode_ZeroAlphaPass = 2 +}; + +union GLvec2 +{ + GLfloat vec[2]; + struct { GLfloat x, y; }; +}; +typedef union GLvec2 GLvec2; + +union GLvec3 +{ + GLfloat vec[3]; + struct { GLfloat r, g, b; }; + struct { GLfloat x, y, z; }; +}; +typedef union GLvec3 GLvec3; + +union GLvec4 +{ + GLfloat vec[4]; + struct { GLfloat r, g, b, a; }; + struct { GLfloat x, y, z, w; }; +}; +typedef union GLvec4 GLvec4; + +struct OGLVertex +{ + GLvec4 position; + GLvec2 texCoord; + GLvec3 color; +}; +typedef struct OGLVertex OGLVertex; + +struct OGLRenderStates +{ + GLuint enableAntialiasing; + GLuint enableFogAlphaOnly; + GLuint clearPolyID; + GLfloat clearDepth; + GLfloat alphaTestRef; + GLfloat fogOffset; // Currently unused, kept to preserve alignment + GLfloat fogStep; // Currently unused, kept to preserve alignment + GLfloat pad_0; // This needs to be here to preserve alignment + GLvec4 fogColor; + GLvec4 edgeColor[8]; + GLvec4 toonColor[32]; +}; +typedef struct OGLRenderStates OGLRenderStates; + +union OGLPolyStates +{ + u32 packedState; + + struct + { + u8 PolygonID:6; + u8 PolygonMode:2; + + u8 PolygonAlpha:5; + u8 IsWireframe:1; + u8 EnableFog:1; + u8 SetNewDepthForTranslucent:1; + + u8 EnableTexture:1; + u8 TexSingleBitAlpha:1; + u8 TexSizeShiftS:3; + u8 TexSizeShiftT:3; + + u8 IsBackFacing:1; + u8 :7; + }; +}; +typedef union OGLPolyStates OGLPolyStates; + +union OGLGeometryFlags +{ + u8 value; + +#ifndef MSB_FIRST + struct + { + u8 EnableFog:1; + u8 EnableEdgeMark:1; + u8 OpaqueDrawMode:1; + u8 EnableWDepth:1; + u8 EnableAlphaTest:1; + u8 EnableTextureSampling:1; + u8 ToonShadingMode:1; + u8 unused:1; + }; + + struct + { + u8 DrawBuffersMode:3; + u8 :5; + }; +#else + struct + { + u8 unused:1; + u8 ToonShadingMode:1; + u8 EnableTextureSampling:1; + u8 EnableAlphaTest:1; + u8 EnableWDepth:1; + u8 OpaqueDrawMode:1; + u8 EnableEdgeMark:1; + u8 EnableFog:1; + }; + + struct + { + u8 :5; + u8 DrawBuffersMode:3; + }; +#endif +}; +typedef OGLGeometryFlags OGLGeometryFlags; + +union OGLFogProgramKey +{ + u32 key; + + struct + { + u16 offset; + u8 shift; + u8 :8; + }; +}; +typedef OGLFogProgramKey OGLFogProgramKey; + +struct OGLFogShaderID +{ + GLuint program; + GLuint fragShader; +}; +typedef OGLFogShaderID OGLFogShaderID; + +struct OGLRenderRef +{ + // OpenGL Feature Support + GLint stateTexMirroredRepeat; + + // VBO + GLuint vboGeometryVtxID; + GLuint iboGeometryIndexID; + GLuint vboPostprocessVtxID; + + // PBO + GLuint pboRenderDataID; + + // UBO / TBO + GLuint uboRenderStatesID; + GLuint uboPolyStatesID; + GLuint tboPolyStatesID; + GLuint texPolyStatesID; + + // FBO + GLuint texCIColorID; + GLuint texCIFogAttrID; + GLuint texCIDepthStencilID; + + GLuint texGColorID; + GLuint texGFogAttrID; + GLuint texGPolyID; + GLuint texGDepthStencilID; + GLuint texFinalColorID; + GLuint texFogDensityTableID; + GLuint texToonTableID; + GLuint texEdgeColorTableID; + GLuint texMSGColorID; + GLuint texMSGWorkingID; + + GLuint rboMSGColorID; + GLuint rboMSGWorkingID; + GLuint rboMSGPolyID; + GLuint rboMSGFogAttrID; + GLuint rboMSGDepthStencilID; + + GLuint fboClearImageID; + GLuint fboRenderID; + GLuint fboFramebufferFlipID; + GLuint fboMSIntermediateRenderID; + GLuint selectedRenderingFBO; + + // Shader states + GLuint vertexGeometryShaderID; + GLuint fragmentGeometryShaderID[128]; + GLuint programGeometryID[128]; + + GLuint vtxShaderGeometryZeroDstAlphaID; + GLuint fragShaderGeometryZeroDstAlphaID; + GLuint programGeometryZeroDstAlphaID; + + GLuint vtxShaderMSGeometryZeroDstAlphaID; + GLuint fragShaderMSGeometryZeroDstAlphaID; + GLuint programMSGeometryZeroDstAlphaID; + + GLuint vertexEdgeMarkShaderID; + GLuint vertexFogShaderID; + GLuint vertexFramebufferOutput6665ShaderID; + GLuint vertexFramebufferOutput8888ShaderID; + GLuint fragmentEdgeMarkShaderID; + GLuint fragmentFramebufferRGBA6665OutputShaderID; + GLuint fragmentFramebufferRGBA8888OutputShaderID; + GLuint programEdgeMarkID; + GLuint programFramebufferRGBA6665OutputID[2]; + GLuint programFramebufferRGBA8888OutputID[2]; + + GLint uniformStateEnableFogAlphaOnly; + GLint uniformStateClearPolyID; + GLint uniformStateClearDepth; + GLint uniformStateFogColor; + + GLint uniformStateAlphaTestRef[256]; + GLint uniformPolyTexScale[256]; + GLint uniformPolyMode[256]; + GLint uniformPolyIsWireframe[256]; + GLint uniformPolySetNewDepthForTranslucent[256]; + GLint uniformPolyAlpha[256]; + GLint uniformPolyID[256]; + + GLint uniformPolyEnableTexture[256]; + GLint uniformPolyEnableFog[256]; + GLint uniformTexSingleBitAlpha[256]; + GLint uniformTexDrawOpaque[256]; + GLint uniformDrawModeDepthEqualsTest[256]; + GLint uniformPolyIsBackFacing[256]; + + GLint uniformPolyStateIndex[256]; + GLfloat uniformPolyDepthOffset[256]; + GLint uniformPolyDrawShadow[256]; + + // VAO + GLuint vaoGeometryStatesID; + GLuint vaoPostprocessStatesID; + + // Client-side Buffers + GLfloat *position4fBuffer; + GLfloat *texCoord2fBuffer; + GLfloat *color4fBuffer; + CACHE_ALIGN GLushort vertIndexBuffer[OGLRENDER_VERT_INDEX_BUFFER_COUNT]; + CACHE_ALIGN GLushort workingCIColorBuffer[GPU_FRAMEBUFFER_NATIVE_WIDTH * GPU_FRAMEBUFFER_NATIVE_HEIGHT]; + CACHE_ALIGN GLuint workingCIDepthStencilBuffer[2][GPU_FRAMEBUFFER_NATIVE_WIDTH * GPU_FRAMEBUFFER_NATIVE_HEIGHT]; + CACHE_ALIGN GLuint workingCIFogAttributesBuffer[2][GPU_FRAMEBUFFER_NATIVE_WIDTH * GPU_FRAMEBUFFER_NATIVE_HEIGHT]; +}; +typedef struct OGLRenderRef OGLRenderRef; + +struct GFX3D_State; +struct POLY; +class OpenGLRenderer; + +extern GPU3DInterface gpu3Dgl; +extern GPU3DInterface gpu3DglOld; +extern GPU3DInterface gpu3Dgl_3_2; + +extern const GLenum GeometryDrawBuffersEnum[8][4]; +extern const GLint GeometryAttachmentWorkingBuffer[8]; +extern const GLint GeometryAttachmentPolyID[8]; +extern const GLint GeometryAttachmentFogAttributes[8]; + +extern CACHE_ALIGN const GLfloat divide5bitBy31_LUT[32]; +extern CACHE_ALIGN const GLfloat divide6bitBy63_LUT[64]; +extern const GLfloat PostprocessVtxBuffer[16]; +extern const GLubyte PostprocessElementBuffer[6]; + +//This is called by OGLRender whenever it initializes. +//Platforms, please be sure to set this up. +//return true if you successfully init. +extern bool (*oglrender_init)(); + +//This is called by OGLRender before it uses opengl. +//return true if youre OK with using opengl +extern bool (*oglrender_beginOpenGL)(); + +//This is called by OGLRender after it is done using opengl. +extern void (*oglrender_endOpenGL)(); + +//This is called by OGLRender whenever the framebuffer is resized. +extern bool (*oglrender_framebufferDidResizeCallback)(const bool isFBOSupported, size_t w, size_t h); + +// Helper functions for calling the above function pointers at the +// beginning and ending of OpenGL commands. +bool BEGINGL(); +void ENDGL(); + +// These functions need to be assigned by ports that support using an +// OpenGL 3.2 Core Profile context. The OGLRender_3_2.cpp file includes +// the corresponding functions to assign to each function pointer. +// +// If any of these functions are unassigned, then one of the legacy OpenGL +// renderers will be used instead. +extern void (*OGLLoadEntryPoints_3_2_Func)(); +extern void (*OGLCreateRenderer_3_2_Func)(OpenGLRenderer **rendererPtr); + +bool IsOpenGLDriverVersionSupported(unsigned int checkVersionMajor, unsigned int checkVersionMinor, unsigned int checkVersionRevision); + +class OpenGLTexture : public Render3DTexture +{ +protected: + GLuint _texID; + GLfloat _invSizeS; + GLfloat _invSizeT; + bool _isTexInited; + + u32 *_upscaleBuffer; + +public: + OpenGLTexture(TEXIMAGE_PARAM texAttributes, u32 palAttributes); + virtual ~OpenGLTexture(); + + virtual void Load(bool forceTextureInit); + + GLuint GetID() const; + GLfloat GetInvWidth() const; + GLfloat GetInvHeight() const; + + void SetUnpackBuffer(void *unpackBuffer); + void SetDeposterizeBuffer(void *dstBuffer, void *workingBuffer); + void SetUpscalingBuffer(void *upscaleBuffer); +}; + +#if defined(ENABLE_AVX2) +class OpenGLRenderer : public Render3D_AVX2 +#elif defined(ENABLE_SSE2) +class OpenGLRenderer : public Render3D_SSE2 +#elif defined(ENABLE_NEON_A64) +class OpenGLRenderer : public Render3D_NEON +#elif defined(ENABLE_ALTIVEC) +class OpenGLRenderer : public Render3D_AltiVec +#else +class OpenGLRenderer : public Render3D +#endif +{ +private: + // Driver's OpenGL Version + unsigned int versionMajor; + unsigned int versionMinor; + unsigned int versionRevision; + +private: + Render3DError _FlushFramebufferFlipAndConvertOnCPU(const Color4u8 *__restrict srcFramebuffer, + Color4u8 *__restrict dstFramebufferMain, u16 *__restrict dstFramebuffer16, + bool doFramebufferFlip, bool doFramebufferConvert); + +protected: + // OpenGL-specific References + OGLRenderRef *ref; + + // OpenGL Feature Support + bool isVBOSupported; + bool isPBOSupported; + bool isFBOSupported; + bool isMultisampledFBOSupported; + bool isShaderSupported; + bool isVAOSupported; + bool willFlipOnlyFramebufferOnGPU; + bool willFlipAndConvertFramebufferOnGPU; + bool willUsePerSampleZeroDstPass; + + bool _emulateShadowPolygon; + bool _emulateSpecialZeroAlphaBlending; + bool _emulateNDSDepthCalculation; + bool _emulateDepthLEqualPolygonFacing; + bool _isDepthLEqualPolygonFacingSupported; + + Color4u8 *_mappedFramebuffer; + Color4u8 *_workingTextureUnpackBuffer; + bool _pixelReadNeedsFinish; + bool _needsZeroDstAlphaPass; + size_t _currentPolyIndex; + bool _enableAlphaBlending; + OGLTextureUnitID _lastTextureDrawTarget; + OGLGeometryFlags _geometryProgramFlags; + OGLFogProgramKey _fogProgramKey; + std::map _fogProgramMap; + + CACHE_ALIGN OGLRenderStates _pendingRenderStates; + + bool _enableMultisampledRendering; + int _selectedMultisampleSize; + size_t _clearImageIndex; + + Render3DError FlushFramebuffer(const Color4u8 *__restrict srcFramebuffer, Color4u8 *__restrict dstFramebufferMain, u16 *__restrict dstFramebuffer16); + OpenGLTexture* GetLoadedTextureFromPolygon(const POLY &thePoly, bool enableTexturing); + + template size_t DrawPolygonsForIndexRange(const POLY *rawPolyList, const CPoly *clippedPolyList, const size_t clippedPolyCount, size_t firstIndex, size_t lastIndex, size_t &indexOffset, POLYGON_ATTR &lastPolyAttr); + template Render3DError DrawAlphaTexturePolygon(const GLenum polyPrimitive, + const GLsizei vertIndexCount, + const GLushort *indexBufferPtr, + const bool performDepthEqualTest, + const bool enableAlphaDepthWrite, + const bool canHaveOpaqueFragments, + const u8 opaquePolyID, + const bool isPolyFrontFacing); + template Render3DError DrawOtherPolygon(const GLenum polyPrimitive, + const GLsizei vertIndexCount, + const GLushort *indexBufferPtr, + const bool performDepthEqualTest, + const bool enableAlphaDepthWrite, + const u8 opaquePolyID, + const bool isPolyFrontFacing); + + // OpenGL-specific methods + virtual Render3DError CreateVBOs() = 0; + virtual void DestroyVBOs() = 0; + virtual Render3DError CreatePBOs() = 0; + virtual void DestroyPBOs() = 0; + virtual Render3DError CreateFBOs() = 0; + virtual void DestroyFBOs() = 0; + virtual Render3DError CreateMultisampledFBO(GLsizei numSamples) = 0; + virtual void DestroyMultisampledFBO() = 0; + virtual void ResizeMultisampledFBOs(GLsizei numSamples) = 0; + virtual Render3DError CreateVAOs() = 0; + virtual void DestroyVAOs() = 0; + + virtual Render3DError CreateGeometryPrograms() = 0; + virtual void DestroyGeometryPrograms() = 0; + virtual Render3DError CreateGeometryZeroDstAlphaProgram(const char *vtxShaderCString, const char *fragShaderCString) = 0; + virtual void DestroyGeometryZeroDstAlphaProgram() = 0; + virtual Render3DError CreateEdgeMarkProgram(const char *vtxShaderCString, const char *fragShaderCString) = 0; + virtual void DestroyEdgeMarkProgram() = 0; + virtual Render3DError CreateFogProgram(const OGLFogProgramKey fogProgramKey, const char *vtxShaderCString, const char *fragShaderCString) = 0; + virtual void DestroyFogProgram(const OGLFogProgramKey fogProgramKey) = 0; + virtual void DestroyFogPrograms() = 0; + virtual Render3DError CreateFramebufferOutput6665Program(const size_t outColorIndex, const char *vtxShaderCString, const char *fragShaderCString) = 0; + virtual void DestroyFramebufferOutput6665Programs() = 0; + virtual Render3DError CreateFramebufferOutput8888Program(const size_t outColorIndex, const char *vtxShaderCString, const char *fragShaderCString) = 0; + virtual void DestroyFramebufferOutput8888Programs() = 0; + + virtual Render3DError InitFinalRenderStates(const std::set *oglExtensionSet) = 0; + virtual Render3DError InitPostprocessingPrograms(const char *edgeMarkVtxShader, + const char *edgeMarkFragShader, + const char *framebufferOutputVtxShader, + const char *framebufferOutputRGBA6665FragShader, + const char *framebufferOutputRGBA8888FragShader) = 0; + + virtual Render3DError UploadClearImage(const u16 *__restrict colorBuffer, const u32 *__restrict depthBuffer, const u8 *__restrict fogBuffer, const u8 opaquePolyID) = 0; + + virtual void GetExtensionSet(std::set *oglExtensionSet) = 0; + virtual void _SetupGeometryShaders(const OGLGeometryFlags flags) = 0; + virtual Render3DError EnableVertexAttributes() = 0; + virtual Render3DError DisableVertexAttributes() = 0; + virtual void _ResolveWorkingBackFacing() = 0; + virtual void _ResolveGeometry() = 0; + virtual Render3DError ReadBackPixels() = 0; + + virtual Render3DError DrawShadowPolygon(const GLenum polyPrimitive, const GLsizei vertIndexCount, const GLushort *indexBufferPtr, const bool performDepthEqualTest, const bool enableAlphaDepthWrite, const bool isTranslucent, const u8 opaquePolyID) = 0; + virtual void SetPolygonIndex(const size_t index) = 0; + virtual Render3DError SetupPolygon(const POLY &thePoly, bool treatAsTranslucent, bool willChangeStencilBuffer, bool isBackFacing) = 0; + +public: + OpenGLRenderer(); + virtual ~OpenGLRenderer(); + + virtual Render3DError InitExtensions() = 0; + + bool IsExtensionPresent(const std::set *oglExtensionSet, const std::string extensionName) const; + Render3DError ShaderProgramCreate(GLuint &vtxShaderID, + GLuint &fragShaderID, + GLuint &programID, + const char *vtxShaderCString, + const char *fragShaderCString); + bool ValidateShaderCompile(GLenum shaderType, GLuint theShader) const; + bool ValidateShaderProgramLink(GLuint theProgram) const; + void GetVersion(unsigned int *major, unsigned int *minor, unsigned int *revision) const; + void SetVersion(unsigned int major, unsigned int minor, unsigned int revision); + bool IsVersionSupported(unsigned int checkVersionMajor, unsigned int checkVersionMinor, unsigned int checkVersionRevision) const; + + virtual Color4u8* GetFramebuffer(); + virtual GLsizei GetLimitedMultisampleSize() const; + + Render3DError ApplyRenderingSettings(const GFX3D_State &renderState); +}; + +class OpenGLRenderer_1_2 : public OpenGLRenderer +{ +protected: + // OpenGL-specific methods + virtual Render3DError CreateVBOs(); + virtual void DestroyVBOs(); + virtual Render3DError CreatePBOs(); + virtual void DestroyPBOs(); + virtual Render3DError CreateFBOs(); + virtual void DestroyFBOs(); + virtual Render3DError CreateMultisampledFBO(GLsizei numSamples); + virtual void DestroyMultisampledFBO(); + virtual void ResizeMultisampledFBOs(GLsizei numSamples); + virtual Render3DError CreateVAOs(); + virtual void DestroyVAOs(); + + virtual Render3DError CreateGeometryPrograms(); + virtual void DestroyGeometryPrograms(); + virtual Render3DError CreateGeometryZeroDstAlphaProgram(const char *vtxShaderCString, const char *fragShaderCString); + virtual void DestroyGeometryZeroDstAlphaProgram(); + virtual Render3DError CreateEdgeMarkProgram(const char *vtxShaderCString, const char *fragShaderCString); + virtual void DestroyEdgeMarkProgram(); + virtual Render3DError CreateFogProgram(const OGLFogProgramKey fogProgramKey, const char *vtxShaderCString, const char *fragShaderCString); + virtual void DestroyFogProgram(const OGLFogProgramKey fogProgramKey); + virtual void DestroyFogPrograms(); + virtual Render3DError CreateFramebufferOutput6665Program(const size_t outColorIndex, const char *vtxShaderCString, const char *fragShaderCString); + virtual void DestroyFramebufferOutput6665Programs(); + virtual Render3DError CreateFramebufferOutput8888Program(const size_t outColorIndex, const char *vtxShaderCString, const char *fragShaderCString); + virtual void DestroyFramebufferOutput8888Programs(); + + virtual Render3DError InitFinalRenderStates(const std::set *oglExtensionSet); + virtual Render3DError InitPostprocessingPrograms(const char *edgeMarkVtxShader, + const char *edgeMarkFragShader, + const char *framebufferOutputVtxShader, + const char *framebufferOutputRGBA6665FragShader, + const char *framebufferOutputRGBA8888FragShader); + + virtual Render3DError UploadClearImage(const u16 *__restrict colorBuffer, const u32 *__restrict depthBuffer, const u8 *__restrict fogBuffer, const u8 opaquePolyID); + + virtual void GetExtensionSet(std::set *oglExtensionSet); + virtual void _SetupGeometryShaders(const OGLGeometryFlags flags); + virtual Render3DError EnableVertexAttributes(); + virtual Render3DError DisableVertexAttributes(); + virtual Render3DError ZeroDstAlphaPass(const POLY *rawPolyList, const CPoly *clippedPolyList, const size_t clippedPolyCount, const size_t clippedPolyOpaqueCount, bool enableAlphaBlending, size_t indexOffset, POLYGON_ATTR lastPolyAttr); + virtual void _ResolveWorkingBackFacing(); + virtual void _ResolveGeometry(); + virtual Render3DError ReadBackPixels(); + + // Base rendering methods + virtual Render3DError BeginRender(const GFX3D_State &renderState, const GFX3D_GeometryList &renderGList); + virtual Render3DError RenderGeometry(); + virtual Render3DError PostprocessFramebuffer(); + virtual Render3DError EndRender(); + + virtual Render3DError ClearUsingImage(const u16 *__restrict colorBuffer, const u32 *__restrict depthBuffer, const u8 *__restrict fogBuffer, const u8 opaquePolyID); + virtual Render3DError ClearUsingValues(const Color4u8 &clearColor6665, const FragmentAttributes &clearAttributes); + + virtual void SetPolygonIndex(const size_t index); + virtual Render3DError SetupPolygon(const POLY &thePoly, bool treatAsTranslucent, bool willChangeStencilBuffer, bool isBackFacing); + virtual Render3DError SetupTexture(const POLY &thePoly, size_t polyRenderIndex); + virtual Render3DError SetupViewport(const GFX3D_Viewport viewport); + + virtual Render3DError DrawShadowPolygon(const GLenum polyPrimitive, const GLsizei vertIndexCount, const GLushort *indexBufferPtr, const bool performDepthEqualTest, const bool enableAlphaDepthWrite, const bool isTranslucent, const u8 opaquePolyID); + +public: + ~OpenGLRenderer_1_2(); + + virtual Render3DError InitExtensions(); + virtual Render3DError Reset(); + virtual Render3DError RenderPowerOff(); + virtual Render3DError RenderFinish(); + virtual Render3DError RenderFlush(bool willFlushBuffer32, bool willFlushBuffer16); + virtual Render3DError SetFramebufferSize(size_t w, size_t h); +}; + +class OpenGLRenderer_2_0 : public OpenGLRenderer_1_2 +{ +protected: + virtual Render3DError InitFinalRenderStates(const std::set *oglExtensionSet); + + virtual Render3DError EnableVertexAttributes(); + virtual Render3DError DisableVertexAttributes(); + + virtual Render3DError BeginRender(const GFX3D_State &renderState, const GFX3D_GeometryList &renderGList); + + virtual Render3DError SetupTexture(const POLY &thePoly, size_t polyRenderIndex); +}; + +class OpenGLRenderer_2_1 : public OpenGLRenderer_2_0 +{ +public: + virtual Render3DError RenderFinish(); + virtual Render3DError RenderFlush(bool willFlushBuffer32, bool willFlushBuffer16); +}; + +#endif