X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fcontext.h;h=099912aa15259d707cc5c2977b0d15ba092b17ac;hb=ff938bf059a41a9bdf4c2c93cebe4a3b8a89c201;hp=8345f9e70fc77cea9f0b500f5630a2803f726676;hpb=b1394fa92aaaf859ce9efc8b5fc194397921320c;p=mesa.git diff --git a/src/mesa/main/context.h b/src/mesa/main/context.h index 8345f9e70fc..099912aa152 100644 --- a/src/mesa/main/context.h +++ b/src/mesa/main/context.h @@ -1,21 +1,19 @@ -/* $Id: context.h,v 1.19 2000/09/26 20:53:53 brianp Exp $ */ - /* * Mesa 3-D graphics library - * Version: 3.3 - * - * Copyright (C) 1999-2000 Brian Paul All Rights Reserved. - * + * Version: 6.5.1 + * + * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: - * + * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. - * + * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL @@ -25,38 +23,40 @@ */ -#ifndef CONTEXT_H -#define CONTEXT_H - - -#include "glapi.h" -#include "types.h" - - -/* - * There are three Mesa datatypes which are meant to be used by device - * drivers: - * GLcontext: this contains the Mesa rendering state - * GLvisual: this describes the color buffer (rgb vs. ci), whether - * or not there's a depth buffer, stencil buffer, etc. - * GLframebuffer: contains pointers to the depth buffer, stencil - * buffer, accum buffer and alpha buffers. +/** + * \file context.h + * Mesa context and visual-related functions. + * + * There are three large Mesa data types/classes which are meant to be + * used by device drivers: + * - GLcontext: this contains the Mesa rendering state + * - GLvisual: this describes the color buffer (RGB vs. ci), whether or not + * there's a depth buffer, stencil buffer, etc. + * - GLframebuffer: contains pointers to the depth buffer, stencil buffer, + * accum buffer and alpha buffers. * * These types should be encapsulated by corresponding device driver - * datatypes. See xmesa.h and xmesaP.h for an example. + * data types. See xmesa.h and xmesaP.h for an example. * * In OOP terms, GLcontext, GLvisual, and GLframebuffer are base classes * which the device driver must derive from. * - * The following functions create and destroy these datatypes. + * The following functions create and destroy these data types. */ -/* - * Create/destroy a GLvisual. A GLvisual is like a GLX visual. It describes - * the colorbuffer, depth buffer, stencil buffer and accum buffer which will - * be used by the GL context and framebuffer. - */ +#ifndef CONTEXT_H +#define CONTEXT_H + + +#include "glapi/glapi.h" +#include "imports.h" +#include "mtypes.h" + + +/** \name Visual-related functions */ +/*@{*/ + extern GLvisual * _mesa_create_visual( GLboolean rgbFlag, GLboolean dbFlag, @@ -95,49 +95,24 @@ _mesa_initialize_visual( GLvisual *v, extern void _mesa_destroy_visual( GLvisual *vis ); +/*@}*/ -/* - * Create/destroy a GLframebuffer. A GLframebuffer is like a GLX drawable. - * It bundles up the depth buffer, stencil buffer and accum buffers into a - * single entity. - */ -extern GLframebuffer * -_mesa_create_framebuffer( GLvisual *visual, - GLboolean softwareDepth, - GLboolean softwareStencil, - GLboolean softwareAccum, - GLboolean softwareAlpha ); - -extern void -_mesa_initialize_framebuffer( GLframebuffer *fb, - GLvisual *visual, - GLboolean softwareDepth, - GLboolean softwareStencil, - GLboolean softwareAccum, - GLboolean softwareAlpha ); +/** \name Context-related functions */ +/*@{*/ -extern void -_mesa_destroy_framebuffer( GLframebuffer *buffer ); - - - -/* - * Create/destroy a GLcontext. A GLcontext is like a GLX context. It - * contains the rendering state. - */ extern GLcontext * -_mesa_create_context( GLvisual *visual, +_mesa_create_context( const GLvisual *visual, GLcontext *share_list, - void *driver_ctx, - GLboolean direct); + const struct dd_function_table *driverFunctions, + void *driverContext ); extern GLboolean _mesa_initialize_context( GLcontext *ctx, - GLvisual *visual, + const GLvisual *visual, GLcontext *share_list, - void *driver_ctx, - GLboolean direct ); + const struct dd_function_table *driverFunctions, + void *driverContext ); extern void _mesa_free_context_data( GLcontext *ctx ); @@ -146,93 +121,170 @@ extern void _mesa_destroy_context( GLcontext *ctx ); -extern void -_mesa_context_initialize( GLcontext *ctx ); - - extern void _mesa_copy_context(const GLcontext *src, GLcontext *dst, GLuint mask); extern void -_mesa_make_current( GLcontext *ctx, GLframebuffer *buffer ); - - -extern void -_mesa_make_current2( GLcontext *ctx, GLframebuffer *drawBuffer, - GLframebuffer *readBuffer ); +_mesa_make_current( GLcontext *ctx, GLframebuffer *drawBuffer, + GLframebuffer *readBuffer ); +extern GLboolean +_mesa_share_state(GLcontext *ctx, GLcontext *ctxToShare); extern GLcontext * _mesa_get_current_context(void); +/*@}*/ -/* - * Macros for fetching current context, input buffer, etc. - */ -#ifdef THREADS - -#define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) (_glapi_Context ? _glapi_Context : _glapi_get_context()) - -#define GET_IMMEDIATE struct immediate *IM = ((GLcontext *) (_glapi_Context ? _glapi_Context : _glapi_get_context()))->input - -#define SET_IMMEDIATE(ctx, im) \ -do { \ - ctx->input = im; \ -} while (0) +extern void +_mesa_notifySwapBuffers(__GLcontext *gc); -#else -extern struct immediate *_mesa_CurrentInput; +extern struct _glapi_table * +_mesa_get_dispatch(GLcontext *ctx); -#define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) _glapi_Context -#define GET_IMMEDIATE struct immediate *IM = _mesa_CurrentInput -#define SET_IMMEDIATE(ctx, im) \ -do { \ - ctx->input = im; \ - _mesa_CurrentInput = im; \ -} while (0) +/** \name Miscellaneous */ +/*@{*/ -#endif +extern void +_mesa_record_error( GLcontext *ctx, GLenum error ); +extern void GLAPIENTRY +_mesa_Finish( void ); +extern void GLAPIENTRY +_mesa_Flush( void ); -extern void -_mesa_swapbuffers(GLcontext *ctx); +/*@}*/ -extern struct _glapi_table * -_mesa_get_dispatch(GLcontext *ctx); - +/** + * \name Macros for flushing buffered rendering commands before state changes, + * checking if inside glBegin/glEnd, etc. + */ +/*@{*/ -/* - * Miscellaneous +/** + * Flush vertices. + * + * \param ctx GL context. + * \param newstate new state. + * + * Checks if dd_function_table::NeedFlush is marked to flush stored vertices, + * and calls dd_function_table::FlushVertices if so. Marks + * __GLcontextRec::NewState with \p newstate. */ +#define FLUSH_VERTICES(ctx, newstate) \ +do { \ + if (MESA_VERBOSE & VERBOSE_STATE) \ + _mesa_debug(ctx, "FLUSH_VERTICES in %s\n", MESA_FUNCTION);\ + if (ctx->Driver.NeedFlush & FLUSH_STORED_VERTICES) \ + ctx->Driver.FlushVertices(ctx, FLUSH_STORED_VERTICES); \ + ctx->NewState |= newstate; \ +} while (0) -extern void -gl_problem( const GLcontext *ctx, const char *s ); +/** + * Flush current state. + * + * \param ctx GL context. + * \param newstate new state. + * + * Checks if dd_function_table::NeedFlush is marked to flush current state, + * and calls dd_function_table::FlushVertices if so. Marks + * __GLcontextRec::NewState with \p newstate. + */ +#define FLUSH_CURRENT(ctx, newstate) \ +do { \ + if (MESA_VERBOSE & VERBOSE_STATE) \ + _mesa_debug(ctx, "FLUSH_CURRENT in %s\n", MESA_FUNCTION); \ + if (ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT) \ + ctx->Driver.FlushVertices(ctx, FLUSH_UPDATE_CURRENT); \ + ctx->NewState |= newstate; \ +} while (0) -extern void -_mesa_warning( const GLcontext *ctx, const char *s ); +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair, with return value. + * + * \param ctx GL context. + * \param retval value to return value in case the assertion fails. + */ +#define ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval) \ +do { \ + if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { \ + _mesa_error(ctx, GL_INVALID_OPERATION, "Inside glBegin/glEnd"); \ + return retval; \ + } \ +} while (0) -extern void -gl_error( GLcontext *ctx, GLenum error, const char *s ); +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair. + * + * \param ctx GL context. + */ +#define ASSERT_OUTSIDE_BEGIN_END(ctx) \ +do { \ + if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { \ + _mesa_error(ctx, GL_INVALID_OPERATION, "Inside glBegin/glEnd"); \ + return; \ + } \ +} while (0) -extern void -_mesa_compile_error( GLcontext *ctx, GLenum error, const char *s ); +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair and flush the vertices. + * + * \param ctx GL context. + */ +#define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx) \ +do { \ + ASSERT_OUTSIDE_BEGIN_END(ctx); \ + FLUSH_VERTICES(ctx, 0); \ +} while (0) +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair and flush the vertices, with return value. + * + * \param ctx GL context. + * \param retval value to return value in case the assertion fails. + */ +#define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, retval) \ +do { \ + ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval); \ + FLUSH_VERTICES(ctx, 0); \ +} while (0) +/*@}*/ -extern void -_mesa_Finish( void ); -extern void -_mesa_Flush( void ); +/** + * Is the secondary color needed? + */ +#define NEED_SECONDARY_COLOR(CTX) \ + (((CTX)->Light.Enabled && \ + (CTX)->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR) \ + || (CTX)->Fog.ColorSumEnabled \ + || ((CTX)->VertexProgram._Enabled && \ + ((CTX)->VertexProgram.Current->Base.InputsRead & VERT_BIT_COLOR1)) \ + || ((CTX)->FragmentProgram._Enabled && \ + ((CTX)->FragmentProgram.Current->Base.InputsRead & FRAG_BIT_COL1)) \ + ) + + +/** + * Is RGBA LogicOp enabled? + */ +#define RGBA_LOGICOP_ENABLED(CTX) \ + ((CTX)->Color.ColorLogicOpEnabled || \ + ((CTX)->Color.BlendEnabled && (CTX)->Color.BlendEquationRGB == GL_LOGIC_OP)) -#endif +#endif /* CONTEXT_H */