X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fcontext.h;h=099912aa15259d707cc5c2977b0d15ba092b17ac;hb=ff938bf059a41a9bdf4c2c93cebe4a3b8a89c201;hp=df510afb3f64d50ff305e3620df5fde5c83f33f7;hpb=3f02f90f943a996d88abc20f74503afbb56a4c98;p=mesa.git diff --git a/src/mesa/main/context.h b/src/mesa/main/context.h index df510afb3f6..099912aa152 100644 --- a/src/mesa/main/context.h +++ b/src/mesa/main/context.h @@ -1,21 +1,19 @@ -/* $Id: context.h,v 1.4 1999/11/24 18:48:31 brianp Exp $ */ - /* * Mesa 3-D graphics library - * Version: 3.3 - * - * Copyright (C) 1999 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 @@ -25,166 +23,268 @@ */ -#ifndef CONTEXT_H -#define CONTEXT_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. - */ -extern GLvisual *gl_create_visual( GLboolean rgbFlag, - GLboolean alphaFlag, - GLboolean dbFlag, - GLboolean stereoFlag, - GLint depthBits, - GLint stencilBits, - GLint accumBits, - GLint indexBits, - GLint redBits, - GLint greenBits, - GLint blueBits, - GLint alphaBits ); - -extern void gl_destroy_visual( GLvisual *vis ); - +#ifndef CONTEXT_H +#define CONTEXT_H -/* - * Create/destroy a GLcontext. A GLcontext is like a GLX context. It - * contains the rendering state. - */ -extern GLcontext *gl_create_context( GLvisual *visual, - GLcontext *share_list, - void *driver_ctx, - GLboolean direct); -extern void gl_destroy_context( GLcontext *ctx ); +#include "glapi/glapi.h" +#include "imports.h" +#include "mtypes.h" + + +/** \name Visual-related functions */ +/*@{*/ + +extern GLvisual * +_mesa_create_visual( GLboolean rgbFlag, + GLboolean dbFlag, + GLboolean stereoFlag, + GLint redBits, + GLint greenBits, + GLint blueBits, + GLint alphaBits, + GLint indexBits, + GLint depthBits, + GLint stencilBits, + GLint accumRedBits, + GLint accumGreenBits, + GLint accumBlueBits, + GLint accumAlphaBits, + GLint numSamples ); + +extern GLboolean +_mesa_initialize_visual( GLvisual *v, + GLboolean rgbFlag, + GLboolean dbFlag, + GLboolean stereoFlag, + GLint redBits, + GLint greenBits, + GLint blueBits, + GLint alphaBits, + GLint indexBits, + GLint depthBits, + GLint stencilBits, + GLint accumRedBits, + GLint accumGreenBits, + GLint accumBlueBits, + GLint accumAlphaBits, + GLint numSamples ); -/* Called by the driver after both the context and driver are fully - * initialized. Currently just reads the config file. - */ -extern void gl_context_initialize( GLcontext *ctx ); +extern void +_mesa_destroy_visual( GLvisual *vis ); +/*@}*/ -extern void gl_copy_context(const GLcontext *src, GLcontext *dst, GLuint mask); +/** \name Context-related functions */ +/*@{*/ -/* - * 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 *gl_create_framebuffer( GLvisual *visual ); +extern GLcontext * +_mesa_create_context( const GLvisual *visual, + GLcontext *share_list, + const struct dd_function_table *driverFunctions, + void *driverContext ); -extern void gl_destroy_framebuffer( GLframebuffer *buffer ); +extern GLboolean +_mesa_initialize_context( GLcontext *ctx, + const GLvisual *visual, + GLcontext *share_list, + const struct dd_function_table *driverFunctions, + void *driverContext ); +extern void +_mesa_free_context_data( GLcontext *ctx ); +extern void +_mesa_destroy_context( GLcontext *ctx ); -extern void gl_make_current( GLcontext *ctx, GLframebuffer *buffer ); -extern void gl_make_current2( GLcontext *ctx, GLframebuffer *drawBuffer, - GLframebuffer *readBuffer ); +extern void +_mesa_copy_context(const GLcontext *src, GLcontext *dst, GLuint mask); -extern GLcontext *gl_get_current_context(void); +extern void +_mesa_make_current( GLcontext *ctx, GLframebuffer *drawBuffer, + GLframebuffer *readBuffer ); -#ifdef THREADS - /* - * A seperate GLcontext for each thread - */ +extern GLboolean +_mesa_share_state(GLcontext *ctx, GLcontext *ctxToShare); - #define GET_CURRENT_CONTEXT(C) GLcontext *C = gl_get_current_context() +extern GLcontext * +_mesa_get_current_context(void); -#define GET_IMMEDIATE struct immediate *IM = (gl_get_current_context())->input; -#define SET_IMMEDIATE(ctx, im) \ -do { \ - ctx->input = im; \ -} while (0) +/*@}*/ -#else - /* - * All threads use same pointer to current context. - */ - extern GLcontext *_mesa_current_context; - extern struct immediate *CURRENT_INPUT; - #define GET_CURRENT_CONTEXT(C) GLcontext *C = _mesa_current_context +extern void +_mesa_notifySwapBuffers(__GLcontext *gc); -#define GET_IMMEDIATE struct immediate *IM = CURRENT_INPUT -#define SET_IMMEDIATE(ctx, im) \ -do { \ - ctx->input = im; \ - CURRENT_INPUT = im; \ -} while (0) +extern struct _glapi_table * +_mesa_get_dispatch(GLcontext *ctx); -#endif +/** \name Miscellaneous */ +/*@{*/ extern void -_mesa_swapbuffers(GLcontext *ctx); +_mesa_record_error( GLcontext *ctx, GLenum error ); -extern struct _glapi_table * -_mesa_get_dispatch(GLcontext *ctx); +extern void GLAPIENTRY +_mesa_Finish( void ); +extern void GLAPIENTRY +_mesa_Flush( void ); - -/* - * GL_MESA_resize_buffers extension - */ -extern void _mesa_ResizeBuffersMESA( void ); +/*@}*/ -/* - * Miscellaneous +/** + * \name Macros for flushing buffered rendering commands before state changes, + * checking if inside glBegin/glEnd, etc. */ +/*@{*/ -extern void gl_problem( const GLcontext *ctx, const char *s ); +/** + * 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_warning( 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 gl_error( GLcontext *ctx, GLenum error, const char *s ); -extern void gl_compile_error( GLcontext *ctx, GLenum error, 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) +/** + * 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 gl_update_state( GLcontext *ctx ); +/** + * 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) -/* for debugging */ -extern void gl_print_state( const char *msg, GLuint state ); +/*@}*/ -/* for debugging */ -extern void gl_print_enable_flags( const char *msg, GLuint flags ); -#ifdef PROFILE -extern GLdouble gl_time( void ); -#endif +/** + * 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 */