mirror of
https://github.com/reactos/reactos.git
synced 2025-08-05 18:23:07 +00:00
Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.
This commit is contained in:
Colin Finck
parent
b94e2d8ca0
commit
c2c66aff7d
24198 changed files with 0 additions and 37285 deletions
460
dll/opengl/mesa/swrast/s_context.h
Normal file
460
dll/opengl/mesa/swrast/s_context.h
Normal file
|
|
@ -0,0 +1,460 @@
|
|||
/*
|
||||
* Mesa 3-D graphics library
|
||||
* Version: 6.5.3
|
||||
*
|
||||
* Copyright (C) 1999-2007 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 swrast/s_context.h
|
||||
* \brief Software rasterization context and private types.
|
||||
* \author Keith Whitwell <keith@tungstengraphics.com>
|
||||
*/
|
||||
|
||||
/**
|
||||
* \mainpage swrast module
|
||||
*
|
||||
* This module, software rasterization, contains the software fallback
|
||||
* routines for drawing points, lines, triangles, bitmaps and images.
|
||||
* All rendering boils down to writing spans (arrays) of pixels with
|
||||
* particular colors. The span-writing routines must be implemented
|
||||
* by the device driver.
|
||||
*/
|
||||
|
||||
|
||||
#ifndef S_CONTEXT_H
|
||||
#define S_CONTEXT_H
|
||||
|
||||
#include "main/compiler.h"
|
||||
#include "main/mtypes.h"
|
||||
#include "swrast.h"
|
||||
#include "s_span.h"
|
||||
|
||||
|
||||
typedef void (*texture_sample_func)(struct gl_context *ctx,
|
||||
const struct gl_texture_object *tObj,
|
||||
GLuint n, const GLfloat texcoords[][4],
|
||||
const GLfloat lambda[], GLfloat rgba[][4]);
|
||||
|
||||
typedef void (_ASMAPIP blend_func)( struct gl_context *ctx, GLuint n,
|
||||
const GLubyte mask[],
|
||||
GLvoid *src, const GLvoid *dst,
|
||||
GLenum chanType);
|
||||
|
||||
typedef void (*swrast_point_func)( struct gl_context *ctx, const SWvertex *);
|
||||
|
||||
typedef void (*swrast_line_func)( struct gl_context *ctx,
|
||||
const SWvertex *, const SWvertex *);
|
||||
|
||||
typedef void (*swrast_tri_func)( struct gl_context *ctx, const SWvertex *,
|
||||
const SWvertex *, const SWvertex *);
|
||||
|
||||
|
||||
typedef void (*validate_texture_image_func)(struct gl_context *ctx,
|
||||
struct gl_texture_object *texObj,
|
||||
GLuint face, GLuint level);
|
||||
|
||||
|
||||
/**
|
||||
* \defgroup Bitmasks
|
||||
* Bitmasks to indicate which rasterization options are enabled
|
||||
* (RasterMask)
|
||||
*/
|
||||
/*@{*/
|
||||
#define ALPHATEST_BIT 0x001 /**< Alpha-test pixels */
|
||||
#define BLEND_BIT 0x002 /**< Blend pixels */
|
||||
#define DEPTH_BIT 0x004 /**< Depth-test pixels */
|
||||
#define FOG_BIT 0x008 /**< Fog pixels */
|
||||
#define LOGIC_OP_BIT 0x010 /**< Apply logic op in software */
|
||||
#define CLIP_BIT 0x020 /**< Scissor or window clip pixels */
|
||||
#define STENCIL_BIT 0x040 /**< Stencil pixels */
|
||||
#define MASKING_BIT 0x080 /**< Do glColorMask or glIndexMask */
|
||||
#define MULTI_DRAW_BIT 0x400 /**< Write to more than one color- */
|
||||
/**< buffer or no buffers. */
|
||||
#define TEXTURE_BIT 0x1000 /**< Texturing really enabled */
|
||||
#define CLAMPING_BIT 0x8000 /**< Clamp colors to [0,1] */
|
||||
/*@}*/
|
||||
|
||||
#define _SWRAST_NEW_RASTERMASK (_NEW_BUFFERS| \
|
||||
_NEW_SCISSOR| \
|
||||
_NEW_COLOR| \
|
||||
_NEW_DEPTH| \
|
||||
_NEW_FOG| \
|
||||
_NEW_STENCIL| \
|
||||
_NEW_TEXTURE| \
|
||||
_NEW_VIEWPORT| \
|
||||
_NEW_DEPTH)
|
||||
|
||||
|
||||
struct swrast_texture_image;
|
||||
|
||||
|
||||
/**
|
||||
* Fetch a texel from texture image at given position.
|
||||
*/
|
||||
typedef void (*FetchTexelFunc)(const struct swrast_texture_image *texImage,
|
||||
GLint col, GLint row, GLint img,
|
||||
GLfloat *texelOut);
|
||||
|
||||
|
||||
/**
|
||||
* Subclass of gl_texture_image.
|
||||
* We need extra fields/info to keep tracking of mapped texture buffers,
|
||||
* strides and Fetch functions.
|
||||
*/
|
||||
struct swrast_texture_image
|
||||
{
|
||||
struct gl_texture_image Base;
|
||||
|
||||
GLboolean _IsPowerOfTwo; /**< Are all dimensions powers of two? */
|
||||
|
||||
/** used for mipmap LOD computation */
|
||||
GLfloat WidthScale, HeightScale, DepthScale;
|
||||
|
||||
/** These fields only valid when texture memory is mapped */
|
||||
GLint RowStride; /**< Padded width in units of texels */
|
||||
GLuint *ImageOffsets; /**< if 3D texture: array [Depth] of offsets to
|
||||
each 2D slice in 'Data', in texels */
|
||||
GLubyte *Map; /**< Pointer to mapped image memory */
|
||||
|
||||
/** Malloc'd texture memory */
|
||||
GLubyte *Buffer;
|
||||
|
||||
FetchTexelFunc FetchTexel;
|
||||
};
|
||||
|
||||
|
||||
/** cast wrapper */
|
||||
static inline struct swrast_texture_image *
|
||||
swrast_texture_image(struct gl_texture_image *img)
|
||||
{
|
||||
return (struct swrast_texture_image *) img;
|
||||
}
|
||||
|
||||
/** cast wrapper */
|
||||
static inline const struct swrast_texture_image *
|
||||
swrast_texture_image_const(const struct gl_texture_image *img)
|
||||
{
|
||||
return (const struct swrast_texture_image *) img;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Subclass of gl_renderbuffer with extra fields needed for software
|
||||
* rendering.
|
||||
*/
|
||||
struct swrast_renderbuffer
|
||||
{
|
||||
struct gl_renderbuffer Base;
|
||||
|
||||
GLubyte *Buffer; /**< The malloc'd memory for buffer */
|
||||
|
||||
/** These fields are only valid while buffer is mapped for rendering */
|
||||
GLubyte *Map;
|
||||
GLint RowStride; /**< in bytes */
|
||||
|
||||
/** For span rendering */
|
||||
GLenum ColorType;
|
||||
};
|
||||
|
||||
|
||||
/** cast wrapper */
|
||||
static inline struct swrast_renderbuffer *
|
||||
swrast_renderbuffer(struct gl_renderbuffer *img)
|
||||
{
|
||||
return (struct swrast_renderbuffer *) img;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* \struct SWcontext
|
||||
* \brief Per-context state that's private to the software rasterizer module.
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
/** Driver interface:
|
||||
*/
|
||||
struct swrast_device_driver Driver;
|
||||
|
||||
/** Configuration mechanisms to make software rasterizer match
|
||||
* characteristics of the hardware rasterizer (if present):
|
||||
*/
|
||||
GLboolean AllowVertexFog;
|
||||
GLboolean AllowPixelFog;
|
||||
|
||||
/** Derived values, invalidated on statechanges, updated from
|
||||
* _swrast_validate_derived():
|
||||
*/
|
||||
GLbitfield _RasterMask;
|
||||
GLfloat _BackfaceSign; /** +1 or -1 */
|
||||
GLfloat _BackfaceCullSign; /** +1, 0, or -1 */
|
||||
GLboolean _PreferPixelFog; /* Compute fog blend factor per fragment? */
|
||||
GLboolean _TextureCombinePrimary;
|
||||
GLboolean _FogEnabled;
|
||||
GLboolean _DeferredTexture;
|
||||
|
||||
/** List/array of the fragment attributes to interpolate */
|
||||
GLuint _ActiveAttribs[FRAG_ATTRIB_MAX];
|
||||
/** Same info, but as a bitmask of FRAG_BIT_x bits */
|
||||
GLbitfield64 _ActiveAttribMask;
|
||||
/** Number of fragment attributes to interpolate */
|
||||
GLuint _NumActiveAttribs;
|
||||
/** Indicates how each attrib is to be interpolated (lines/tris) */
|
||||
GLenum _InterpMode[FRAG_ATTRIB_MAX]; /* GL_FLAT or GL_SMOOTH (for now) */
|
||||
|
||||
/* Working values:
|
||||
*/
|
||||
GLuint StippleCounter; /**< Line stipple counter */
|
||||
GLbitfield NewState;
|
||||
GLuint StateChanges;
|
||||
GLenum Primitive; /* current primitive being drawn (ala glBegin) */
|
||||
|
||||
void (*InvalidateState)( struct gl_context *ctx, GLbitfield new_state );
|
||||
|
||||
/**
|
||||
* When the NewState mask intersects these masks, we invalidate the
|
||||
* Point/Line/Triangle function pointers below.
|
||||
*/
|
||||
/*@{*/
|
||||
GLbitfield InvalidatePointMask;
|
||||
GLbitfield InvalidateLineMask;
|
||||
GLbitfield InvalidateTriangleMask;
|
||||
/*@}*/
|
||||
|
||||
/**
|
||||
* Device drivers plug in functions for these callbacks.
|
||||
* Will be called when the GL state change mask intersects the above masks.
|
||||
*/
|
||||
/*@{*/
|
||||
void (*choose_point)( struct gl_context * );
|
||||
void (*choose_line)( struct gl_context * );
|
||||
void (*choose_triangle)( struct gl_context * );
|
||||
/*@}*/
|
||||
|
||||
/**
|
||||
* Current point, line and triangle drawing functions.
|
||||
*/
|
||||
/*@{*/
|
||||
swrast_point_func Point;
|
||||
swrast_line_func Line;
|
||||
swrast_tri_func Triangle;
|
||||
/*@}*/
|
||||
|
||||
/**
|
||||
* Placeholders for when separate specular (or secondary color) is
|
||||
* enabled but texturing is not.
|
||||
*/
|
||||
/*@{*/
|
||||
swrast_point_func SpecPoint;
|
||||
swrast_line_func SpecLine;
|
||||
swrast_tri_func SpecTriangle;
|
||||
/*@}*/
|
||||
|
||||
/**
|
||||
* Typically, we'll allocate a sw_span structure as a local variable
|
||||
* and set its 'array' pointer to point to this object. The reason is
|
||||
* this object is big and causes problems when allocated on the stack
|
||||
* on some systems.
|
||||
*/
|
||||
SWspanarrays *SpanArrays;
|
||||
SWspanarrays *ZoomedArrays; /**< For pixel zooming */
|
||||
|
||||
/**
|
||||
* Used to buffer N GL_POINTS, instead of rendering one by one.
|
||||
*/
|
||||
SWspan PointSpan;
|
||||
|
||||
/** Internal hooks, kept up to date by the same mechanism as above.
|
||||
*/
|
||||
blend_func BlendFunc;
|
||||
texture_sample_func TextureSample;
|
||||
|
||||
/** Buffer for saving the sampled texture colors.
|
||||
* Needed for GL_ARB_texture_env_crossbar implementation.
|
||||
*/
|
||||
GLfloat *TexelBuffer;
|
||||
|
||||
validate_texture_image_func ValidateTextureImage;
|
||||
|
||||
} SWcontext;
|
||||
|
||||
|
||||
extern void
|
||||
_swrast_validate_derived( struct gl_context *ctx );
|
||||
|
||||
extern void
|
||||
_swrast_update_texture_samplers(struct gl_context *ctx);
|
||||
|
||||
|
||||
/** Return SWcontext for the given struct gl_context */
|
||||
static inline SWcontext *
|
||||
SWRAST_CONTEXT(struct gl_context *ctx)
|
||||
{
|
||||
return (SWcontext *) ctx->swrast_context;
|
||||
}
|
||||
|
||||
/** const version of above */
|
||||
static inline const SWcontext *
|
||||
CONST_SWRAST_CONTEXT(const struct gl_context *ctx)
|
||||
{
|
||||
return (const SWcontext *) ctx->swrast_context;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Called prior to framebuffer reading/writing.
|
||||
* For drivers that rely on swrast for fallback rendering, this is the
|
||||
* driver's opportunity to map renderbuffers and textures.
|
||||
*/
|
||||
static inline void
|
||||
swrast_render_start(struct gl_context *ctx)
|
||||
{
|
||||
SWcontext *swrast = SWRAST_CONTEXT(ctx);
|
||||
if (swrast->Driver.SpanRenderStart)
|
||||
swrast->Driver.SpanRenderStart(ctx);
|
||||
}
|
||||
|
||||
|
||||
/** Called after framebuffer reading/writing */
|
||||
static inline void
|
||||
swrast_render_finish(struct gl_context *ctx)
|
||||
{
|
||||
SWcontext *swrast = SWRAST_CONTEXT(ctx);
|
||||
if (swrast->Driver.SpanRenderFinish)
|
||||
swrast->Driver.SpanRenderFinish(ctx);
|
||||
}
|
||||
|
||||
|
||||
extern void
|
||||
_swrast_span_render_start(struct gl_context *ctx);
|
||||
|
||||
extern void
|
||||
_swrast_span_render_finish(struct gl_context *ctx);
|
||||
|
||||
extern void
|
||||
_swrast_map_textures(struct gl_context *ctx);
|
||||
|
||||
extern void
|
||||
_swrast_unmap_textures(struct gl_context *ctx);
|
||||
|
||||
extern void
|
||||
_swrast_map_texture(struct gl_context *ctx, struct gl_texture_object *texObj);
|
||||
|
||||
extern void
|
||||
_swrast_unmap_texture(struct gl_context *ctx, struct gl_texture_object *texObj);
|
||||
|
||||
|
||||
extern void
|
||||
_swrast_map_renderbuffers(struct gl_context *ctx);
|
||||
|
||||
extern void
|
||||
_swrast_unmap_renderbuffers(struct gl_context *ctx);
|
||||
|
||||
|
||||
/**
|
||||
* Size of an RGBA pixel, in bytes, for given datatype.
|
||||
*/
|
||||
#define RGBA_PIXEL_SIZE(TYPE) \
|
||||
((TYPE == GL_UNSIGNED_BYTE) ? 4 * sizeof(GLubyte) : \
|
||||
((TYPE == GL_UNSIGNED_SHORT) ? 4 * sizeof(GLushort) \
|
||||
: 4 * sizeof(GLfloat)))
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* Fixed point arithmetic macros
|
||||
*/
|
||||
#ifndef FIXED_FRAC_BITS
|
||||
#define FIXED_FRAC_BITS 11
|
||||
#endif
|
||||
|
||||
#define FIXED_SHIFT FIXED_FRAC_BITS
|
||||
#define FIXED_ONE (1 << FIXED_SHIFT)
|
||||
#define FIXED_HALF (1 << (FIXED_SHIFT-1))
|
||||
#define FIXED_FRAC_MASK (FIXED_ONE - 1)
|
||||
#define FIXED_INT_MASK (~FIXED_FRAC_MASK)
|
||||
#define FIXED_EPSILON 1
|
||||
#define FIXED_SCALE ((float) FIXED_ONE)
|
||||
#define FIXED_DBL_SCALE ((double) FIXED_ONE)
|
||||
#define FloatToFixed(X) (IROUND((X) * FIXED_SCALE))
|
||||
#define FixedToDouble(X) ((X) * (1.0 / FIXED_DBL_SCALE))
|
||||
#define IntToFixed(I) ((I) << FIXED_SHIFT)
|
||||
#define FixedToInt(X) ((X) >> FIXED_SHIFT)
|
||||
#define FixedToUns(X) (((unsigned int)(X)) >> FIXED_SHIFT)
|
||||
#define FixedCeil(X) (((X) + FIXED_ONE - FIXED_EPSILON) & FIXED_INT_MASK)
|
||||
#define FixedFloor(X) ((X) & FIXED_INT_MASK)
|
||||
#define FixedToFloat(X) ((X) * (1.0F / FIXED_SCALE))
|
||||
#define PosFloatToFixed(X) FloatToFixed(X)
|
||||
#define SignedFloatToFixed(X) FloatToFixed(X)
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* XXX these macros are just bandages for now in order to make
|
||||
* CHAN_BITS==32 compile cleanly.
|
||||
* These should probably go elsewhere at some point.
|
||||
*/
|
||||
#if CHAN_TYPE == GL_FLOAT
|
||||
#define ChanToFixed(X) (X)
|
||||
#define FixedToChan(X) (X)
|
||||
#else
|
||||
#define ChanToFixed(X) IntToFixed(X)
|
||||
#define FixedToChan(X) FixedToInt(X)
|
||||
#endif
|
||||
|
||||
|
||||
/**
|
||||
* For looping over fragment attributes in the pointe, line
|
||||
* triangle rasterizers.
|
||||
*/
|
||||
#define ATTRIB_LOOP_BEGIN \
|
||||
{ \
|
||||
GLuint a; \
|
||||
for (a = 0; a < swrast->_NumActiveAttribs; a++) { \
|
||||
const GLuint attr = swrast->_ActiveAttribs[a];
|
||||
|
||||
#define ATTRIB_LOOP_END } }
|
||||
|
||||
|
||||
/**
|
||||
* Return the address of a pixel value in a mapped renderbuffer.
|
||||
*/
|
||||
static inline GLubyte *
|
||||
_swrast_pixel_address(struct gl_renderbuffer *rb, GLint x, GLint y)
|
||||
{
|
||||
struct swrast_renderbuffer *srb = swrast_renderbuffer(rb);
|
||||
const GLint bpp = _mesa_get_format_bytes(rb->Format);
|
||||
const GLint rowStride = srb->RowStride;
|
||||
assert(x >= 0);
|
||||
assert(y >= 0);
|
||||
/* NOTE: using <= only because of s_tritemp.h which gets a pixel
|
||||
* address but doesn't necessarily access it.
|
||||
*/
|
||||
assert(x <= (GLint) rb->Width);
|
||||
assert(y <= (GLint) rb->Height);
|
||||
assert(srb->Map);
|
||||
return (GLubyte *) srb->Map + y * rowStride + x * bpp;
|
||||
}
|
||||
|
||||
|
||||
|
||||
#endif
|
||||
Loading…
Add table
Add a link
Reference in a new issue