/* * amigamesa.h */ /* * Mesa 3-D graphics library * Version: 3.1 * Copyright (C) 1995 Brian Paul (brianp@ssec.wisc.edu) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the Free * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* * $Id: Amigamesa.h 3.10 1999/06/22 18:51:18 NielsF Exp NielsF $ * * $Log: amigaMesa.h $ * Revision 3.10 1999/06/22 18:51:18 NielsF * - Mesa 3.1 API * - fixed most of the new introduced bugs * * $Log: amigaMesa.h $ * Revision 3.00 1998/09/15 19:16:56 NielsF * - Mesa 3.0 API * - fixed most of the bugs * * $Log: Amigamesa.h $ * Revision 1.5 1997/06/25 19:16:45 StefanZ * *** empty log message *** * * Revision 1.3 1996/10/06 20:35:11 StefanZ * Source bump before Mesa 2.0 * * Revision 1.2 1996/08/14 22:16:31 StefanZ * New Api to amigaspecific functions, Added suport for gfx-cards * * Revision 1.1 1996/06/02 00:15:03 StefanZ * Initial revision * * Revision 1.0 1996/02/21 11:09:45 brianp * A copy of amesa.h version 1.4 in a brave atempt to make a amiga interface * */ #ifndef AMIGAMESA_H #define AMIGAMESA_H #ifdef __cplusplus extern "C" { #endif #include #ifndef UTILITY_TAGITEM_H #include #endif enum AMesaError { AMESA_OUT_OF_MEM, AMESA_RASTPORT_TAG_MISSING, AMESA_SCREEN_TAG_MISSING, AMESA_WINDOW_TAG_MISSING }; enum AMesaChanged { /* fail GL_FALSE */ AMESA_FAILED = -1 , /* TODO: all bits set that are unused upto made number negative */ /* negative nothing */ AMESA_NOTHING = 0 , /* positive bitfield */ AMESA_BUFFER = (1 << 0), /* gl_buffer changed */ AMESA_VISUAL = (1 << 1), /* gl_visual changed (implies gl_context/gl_buffer changed) */ AMESA_CONTEXT = (1 << 2), /* gl_context changed */ AMESA_SHARED = (1 << 3), /* gl_shared_context changed (implies gl_context changed) */ AMESA_DIMENSIONS = (1 << 4), /* context-dimensions changed */ AMESA_BINDING = (1 << 5) /* contexts rastport (or window/screen) changed */ }; #ifndef AOS_KERNEL /* first part defines amigaMesa-specifig tag * second part defines the choosen palette (aka modelling of available colors) * third part defines methog to fetch data (aka encoding of given colors * * at the moment dithering is only available in RGBMode, that means if we are * in index-mode the index-pixels are directly (without dither) mapped to * pen-pixels, it could be an improvement to offer dithering even for index-modes */ typedef enum PaletteModeID { /* dithering */ AMESA_HPCR_DITHER = -8, /* hp-color-recovery */ AMESA_GREY_DITHER = -4, AMESA_WEIGHTED_DITHER = -2, /* default standard 0 */ AMESA_TRUECOLOR_DITHER = -1, /* matches below 0 */ /* matching */ AMESA_HPCR_MATCH = 8, /* hp-color-recovery */ AMESA_GREY_MATCH = 4, AMESA_WEIGHTED_MATCH = 2, /* default standard 0 */ AMESA_TRUECOLOR_MATCH = 1, /* matches below 0 */ /* shifting */ AMESA_TRUECOLOR_SHIFT = 0, /* shifts above 0 */ /* invalid */ AMESA_DEADFOOD = 0xDEAD /* dead man */ } palMode; /* * This is the Amiga/Mesa context structure. This usually contains * info about what window/buffer we're rendering too, the current * drawing color, etc. */ struct amigamesa_context { /* everything is private!!! */ }; struct amigamesa_visual { /* everything is private!!! */ }; struct amigamesa_buffer { /* everything is private!!! */ }; #endif typedef struct amigamesa_context *amigaMesaContext; typedef struct amigamesa_visual *amigaMesaVisual; typedef struct amigamesa_buffer *amigaMesaBuffer; /**********************************************************************/ /***** Amiga/Mesa API Functions *****/ /**********************************************************************/ /* buffers */ amigaMesaBuffer amigaMesaCreateBufferTags(amigaMesaVisual, long Tag1,...); amigaMesaBuffer amigaMesaCreateBuffer(amigaMesaVisual, struct TagItem *); void amigaMesaDestroyBuffer(amigaMesaBuffer); enum AMesaChanged amigaMesaChangeBufferTags(amigaMesaBuffer, long Tag1,...); enum AMesaChanged amigaMesaChangeBuffer(amigaMesaBuffer, struct TagItem *); void amigaMesaGetBufferTags(amigaMesaBuffer, long Tag1,...); void amigaMesaGetBuffer(amigaMesaBuffer, struct TagItem *); /* visuals */ amigaMesaVisual amigaMesaCreateVisualTags(long Tag1,...); amigaMesaVisual amigaMesaCreateVisual(struct TagItem *); void amigaMesaDestroyVisual(amigaMesaVisual); enum AMesaChanged amigaMesaChangeVisualTags(amigaMesaVisual, long Tag1,...); enum AMesaChanged amigaMesaChangeVisual(amigaMesaVisual, struct TagItem *); void amigaMesaGetVisualTags(amigaMesaVisual, long Tag1,...); void amigaMesaGetVisual(amigaMesaVisual, struct TagItem *); /* contexts */ amigaMesaContext amigaMesaCreateContextTags(long Tag1,...); amigaMesaContext amigaMesaCreateContext(struct TagItem *); void amigaMesaDestroyContext(amigaMesaContext); enum AMesaChanged amigaMesaChangeContextTags(amigaMesaContext, long Tag1,...); enum AMesaChanged amigaMesaChangeContext(amigaMesaContext, struct TagItem *); void amigaMesaGetContextTags(amigaMesaContext, long Tag1,...); void amigaMesaGetContext(amigaMesaContext, struct TagItem *); /* misc */ void amigaMesaSetOneColor(amigaMesaContext, GLuint, GLfloat r, GLfloat g, GLfloat b); GLuint amigaMesaGetOneColor(amigaMesaContext, GLuint); GLint amigaMesaNumColors(amigaMesaContext); void amigaMesaMakeCurrent(amigaMesaContext, amigaMesaBuffer); void amigaMesaSwapBuffers(amigaMesaContext); extern GLenum LastError; /* Last Error generated */ /* This is on the drawingboard */ GLboolean amigaMesaSetDefs(struct TagItem *tagList); GLenum amigaMesaReportError(amigaMesaContext amesa); /**********************************************************************/ /***** amigaMesa TAGS (Set/Get) *****/ /**********************************************************************/ /* * Amiga Mesa Attribute tag ID's. These are used in the ti_Tag field of * TagItem arrays passed to amigaMesaSetDefs() and amigaMesaCreateContext() */ #define AMA_Dummy (TAG_USER + 32) /* * Offset to use. WARNING AMA_Left, AMA_Bottom Specifies the low left corner * of the drawing area in deltapixles from the lowest left corner * typical AMA_Left,window->BorderLeft * AMA_Bottom,window->BorderBottom + 1 * This is since ALL gl drawing actions is specified with this point as 0,0 * and with y positive uppwards (like in real graphs). * * Untuched (defult) will result in * AMA_Left=0; * AMA_Bottom=0; */ #define AMA_Left (AMA_Dummy + 0x0001) #define AMA_Bottom (AMA_Dummy + 0x0002) #define AMA_Right (AMA_Dummy + 0x0003) #define AMA_Top (AMA_Dummy + 0x0004) /* * Size in pixels of drawing area if others than the whole rastport. * All internal drawingbuffers will be in this size * * Untuched (defult) will result in * AMA_Width =rp->BitMap->BytesPerRow*8; * AMA_Height=rp->BitMap->Rows; */ #define AMA_Width (AMA_Dummy + 0x0010) #define AMA_Height (AMA_Dummy + 0x0011) #define AMA_PaletteMode (AMA_Dummy + 0x0020) #define AMA_PaletteCache (AMA_Dummy + 0x0021) #define AMA_PaletteDither (AMA_Dummy + 0x0022) #define AMA_Screen (AMA_Dummy + 0x0030) #define AMA_Window (AMA_Dummy + 0x0031) #define AMA_RastPort (AMA_Dummy + 0x0032) /** booleans **/ /* * AMA_DoubleBuf: If specified it uses double Buffering (change buffer with * amigaMesaSwapBuffers()) Turn this on as much as posible * it will result in smother looking and faster rendering * Defult value: GL_FALSE * AMA_RGBMode: If specified it uses 24bit when drawing (on non 24bit displays it * it emuletes 24bit) * Defult value: GL_TRUE * AMA_AlphaFlag: Alphachanel ? * Defule value: GL_FALSE */ #define AMA_DoubleBuffer (AMA_Dummy + 0x0040) #define AMA_RGBMode (AMA_Dummy + 0x0041) #define AMA_AlphaChannel (AMA_Dummy + 0x0042) #define AMA_Stereo (AMA_Dummy + 0x0043) #define AMA_BitsDepth (AMA_Dummy + 0x0044) #define AMA_BitsAccum (AMA_Dummy + 0x0045) #define AMA_BitsStencil (AMA_Dummy + 0x0046) #define AMA_No3D (AMA_Dummy + 0x0047) /** Special **/ /* * AMA_ShareGLContext: Set the "friend" context (use multiple contexts) * See the GL maual or Mesa to get more info * AMA_Visual: If you want to implement your own amigamesa_visual * AMA_Buffer: If you want to implement your own amigamesa_buffer * AMA_WindowID: A windowID to use when I alloc AMA_Buffer for you if * you didn't supply one.(defult=1) */ #define AMA_ShareGLContext (AMA_Dummy + 0x0050) #define AMA_Visual (AMA_Dummy + 0x0051) #define AMA_Buffer (AMA_Dummy + 0x0052) #define AMA_WindowID (AMA_Dummy + 0x0053) #define AMA_GLContext (AMA_Dummy + 0x0054) /** GetOnly **/ /* * AMA_Depth: get the current context-depth */ #define AMA_VisualDepth (AMA_Dummy + 0x0060) #define AMA_ContextDepth (AMA_Dummy + 0x0061) #define AMA_VisualGLVisual (AMA_Dummy + 0x0062) #ifdef __cplusplus } #endif #endif