mirror of
https://github.com/reactos/reactos.git
synced 2024-08-28 14:18:41 +00:00
295 lines
8.1 KiB
C
295 lines
8.1 KiB
C
/*
|
|
* Mesa 3-D graphics library
|
|
* 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
|
|
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
|
|
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
|
|
/**
|
|
* \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:
|
|
* - struct gl_context: this contains the Mesa rendering state
|
|
* - struct gl_config: this describes the color buffer (RGB vs. ci), whether
|
|
* or not there's a depth buffer, stencil buffer, etc.
|
|
* - struct gl_framebuffer: contains pointers to the depth buffer, stencil
|
|
* buffer, accum buffer and alpha buffers.
|
|
*
|
|
* These types should be encapsulated by corresponding device driver
|
|
* data types. See xmesa.h and xmesaP.h for an example.
|
|
*
|
|
* In OOP terms, struct gl_context, struct gl_config, and struct gl_framebuffer
|
|
* are base classes which the device driver must derive from.
|
|
*
|
|
* The following functions create and destroy these data types.
|
|
*/
|
|
|
|
|
|
#ifndef CONTEXT_H
|
|
#define CONTEXT_H
|
|
|
|
|
|
#include "imports.h"
|
|
#include "mtypes.h"
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
struct _glapi_table;
|
|
|
|
|
|
/** \name Visual-related functions */
|
|
/*@{*/
|
|
|
|
extern struct gl_config *
|
|
_mesa_create_visual( GLboolean dbFlag,
|
|
GLboolean stereoFlag,
|
|
GLint redBits,
|
|
GLint greenBits,
|
|
GLint blueBits,
|
|
GLint alphaBits,
|
|
GLint depthBits,
|
|
GLint stencilBits,
|
|
GLint accumRedBits,
|
|
GLint accumGreenBits,
|
|
GLint accumBlueBits,
|
|
GLint accumAlphaBits);
|
|
|
|
extern GLboolean
|
|
_mesa_initialize_visual( struct gl_config *v,
|
|
GLboolean dbFlag,
|
|
GLboolean stereoFlag,
|
|
GLint redBits,
|
|
GLint greenBits,
|
|
GLint blueBits,
|
|
GLint alphaBits,
|
|
GLint depthBits,
|
|
GLint stencilBits,
|
|
GLint accumRedBits,
|
|
GLint accumGreenBits,
|
|
GLint accumBlueBits,
|
|
GLint accumAlphaBits);
|
|
|
|
extern void
|
|
_mesa_destroy_visual( struct gl_config *vis );
|
|
|
|
/*@}*/
|
|
|
|
|
|
/** \name Context-related functions */
|
|
/*@{*/
|
|
|
|
extern GLboolean
|
|
_mesa_initialize_context( struct gl_context *ctx,
|
|
const struct gl_config *visual,
|
|
struct gl_context *share_list,
|
|
const struct dd_function_table *driverFunctions,
|
|
void *driverContext );
|
|
|
|
extern struct gl_context *
|
|
_mesa_create_context(const struct gl_config *visual,
|
|
struct gl_context *share_list,
|
|
const struct dd_function_table *driverFunctions,
|
|
void *driverContext);
|
|
|
|
extern void
|
|
_mesa_free_context_data( struct gl_context *ctx );
|
|
|
|
extern void
|
|
_mesa_destroy_context( struct gl_context *ctx );
|
|
|
|
|
|
extern void
|
|
_mesa_copy_context(const struct gl_context *src, struct gl_context *dst, GLuint mask);
|
|
|
|
|
|
extern void
|
|
_mesa_check_init_viewport(struct gl_context *ctx, GLuint width, GLuint height);
|
|
|
|
extern GLboolean
|
|
_mesa_make_current( struct gl_context *ctx, struct gl_framebuffer *drawBuffer,
|
|
struct gl_framebuffer *readBuffer );
|
|
|
|
extern GLboolean
|
|
_mesa_share_state(struct gl_context *ctx, struct gl_context *ctxToShare);
|
|
|
|
extern struct gl_context *
|
|
_mesa_get_current_context(void);
|
|
|
|
/*@}*/
|
|
|
|
extern void
|
|
_mesa_init_get_hash(struct gl_context *ctx);
|
|
|
|
extern void
|
|
_mesa_notifySwapBuffers(struct gl_context *gc);
|
|
|
|
|
|
extern struct _glapi_table *
|
|
_mesa_get_dispatch(struct gl_context *ctx);
|
|
|
|
|
|
void
|
|
_mesa_set_mvp_with_dp4( struct gl_context *ctx,
|
|
GLboolean flag );
|
|
|
|
|
|
extern GLboolean
|
|
_mesa_valid_to_render(struct gl_context *ctx, const char *where);
|
|
|
|
|
|
|
|
/** \name Miscellaneous */
|
|
/*@{*/
|
|
|
|
extern void
|
|
_mesa_record_error( struct gl_context *ctx, GLenum error );
|
|
|
|
|
|
extern void
|
|
_mesa_finish(struct gl_context *ctx);
|
|
|
|
extern void
|
|
_mesa_flush(struct gl_context *ctx);
|
|
|
|
|
|
extern void GLAPIENTRY
|
|
_mesa_Finish( void );
|
|
|
|
extern void GLAPIENTRY
|
|
_mesa_Flush( void );
|
|
|
|
/*@}*/
|
|
|
|
|
|
/**
|
|
* \name Macros for flushing buffered rendering commands before state changes,
|
|
* checking if inside glBegin/glEnd, etc.
|
|
*/
|
|
/*@{*/
|
|
|
|
/**
|
|
* 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
|
|
* __struct gl_contextRec::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)
|
|
|
|
/**
|
|
* 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
|
|
* __struct gl_contextRec::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)
|
|
|
|
/**
|
|
* 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 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)
|
|
|
|
/**
|
|
* 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 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)
|
|
|
|
/*@}*/
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
#endif /* CONTEXT_H */
|