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|
/*
* Mesa 3-D graphics library
* Version: 3.3
*
* Copyright (C) 1999-2000 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.
*
*
* Original Mesa / 3Dfx device driver (C) 1999 David Bucciarelli, by the
* terms stated above.
*
* Thank you for your contribution, David!
*
* Please make note of the above copyright/license statement. If you
* contributed code or bug fixes to this code under the previous (GNU
* Library) license and object to the new license, your code will be
* removed at your request. Please see the Mesa docs/COPYRIGHT file
* for more information.
*
* Additional Mesa/3Dfx driver developers:
* Daryll Strauss <daryll@precisioninsight.com>
* Keith Whitwell <keith@precisioninsight.com>
*
* See fxapi.h for more revision/author details.
*/
#ifndef FXDRV_H
#define FXDRV_H
/* If you comment out this define, a variable takes its place, letting
* you turn debugging on/off from the debugger.
*/
#include "glheader.h"
#if defined(__linux__)
#include <signal.h>
#endif
#include "context.h"
#include "macros.h"
#include "matrix.h"
#include "mem.h"
#include "texture.h"
#include "mtypes.h"
#include "GL/fxmesa.h"
#include "fxglidew.h"
#include "math/m_vector.h"
/* Define some shorter names for these things.
*/
#define XCOORD GR_VERTEX_X_OFFSET
#define YCOORD GR_VERTEX_Y_OFFSET
#define ZCOORD GR_VERTEX_OOZ_OFFSET
#define OOWCOORD GR_VERTEX_OOW_OFFSET
#define RCOORD GR_VERTEX_R_OFFSET
#define GCOORD GR_VERTEX_G_OFFSET
#define BCOORD GR_VERTEX_B_OFFSET
#define ACOORD GR_VERTEX_A_OFFSET
#define S0COORD GR_VERTEX_SOW_TMU0_OFFSET
#define T0COORD GR_VERTEX_TOW_TMU0_OFFSET
#define S1COORD GR_VERTEX_SOW_TMU1_OFFSET
#define T1COORD GR_VERTEX_TOW_TMU1_OFFSET
extern float gl_ubyte_to_float_255_color_tab[256];
#define UBYTE_COLOR_TO_FLOAT_255_COLOR(c) gl_ubyte_to_float_255_color_tab[c]
#define UBYTE_COLOR_TO_FLOAT_255_COLOR2(f,c) \
(*(int *)&(f)) = ((int *)gl_ubyte_to_float_255_color_tab)[c]
/* Should have size == 16 * sizeof(float).
*/
typedef union {
GrVertex v;
GLfloat f[16];
GLuint ui[16];
} fxVertex;
/* Used in the fxvtxfmt t&l engine.
*/
typedef struct {
GrVertex v;
GLfloat clip[4];
GLfloat texcoord[2][2];
GLubyte mask;
GLfloat normal[3]; /* for replay & fallback */
} fxClipVertex;
typedef void (*vfmt_project_func)( GLcontext *ctx, fxClipVertex *v );
typedef void (*vfmt_interpolate_func)( GLfloat t,
fxClipVertex *O,
const fxClipVertex *I,
const fxClipVertex *J );
#if defined(FXMESA_USE_ARGB)
#define FXCOLOR4( c ) ( \
( ((unsigned int)(c[3]))<<24 ) | \
( ((unsigned int)(c[0]))<<16 ) | \
( ((unsigned int)(c[1]))<<8 ) | \
( (unsigned int)(c[2])) )
#else
#ifdef __i386__
#define FXCOLOR4( c ) (* (int *)c)
#else
#define FXCOLOR4( c ) ( \
( ((unsigned int)(c[3]))<<24 ) | \
( ((unsigned int)(c[2]))<<16 ) | \
( ((unsigned int)(c[1]))<<8 ) | \
( (unsigned int)(c[0])) )
#endif
#endif
/* fastpath/vtxfmt flags first
*/
#define SETUP_TMU0 0x1
#define SETUP_TMU1 0x2
#define SETUP_RGBA 0x4
#define SETUP_SNAP 0x8
#define SETUP_XYZW 0x10
#define MAX_SETUP 0x20
#define FX_NUM_TMU 2
#define FX_TMU0 GR_TMU0
#define FX_TMU1 GR_TMU1
#define FX_TMU_SPLIT 98
#define FX_TMU_BOTH 99
#define FX_TMU_NONE 100
/* Used for fxMesa->lastUnitsMode */
#define FX_UM_NONE 0x00000000
#define FX_UM_E0_REPLACE 0x00000001
#define FX_UM_E0_MODULATE 0x00000002
#define FX_UM_E0_DECAL 0x00000004
#define FX_UM_E0_BLEND 0x00000008
#define FX_UM_E0_ADD 0x00000010
#define FX_UM_E1_REPLACE 0x00000020
#define FX_UM_E1_MODULATE 0x00000040
#define FX_UM_E1_DECAL 0x00000080
#define FX_UM_E1_BLEND 0x00000100
#define FX_UM_E1_ADD 0x00000200
#define FX_UM_E_ENVMODE 0x000003ff
#define FX_UM_E0_ALPHA 0x00001000
#define FX_UM_E0_LUMINANCE 0x00002000
#define FX_UM_E0_LUMINANCE_ALPHA 0x00004000
#define FX_UM_E0_INTENSITY 0x00008000
#define FX_UM_E0_RGB 0x00010000
#define FX_UM_E0_RGBA 0x00020000
#define FX_UM_E1_ALPHA 0x00040000
#define FX_UM_E1_LUMINANCE 0x00080000
#define FX_UM_E1_LUMINANCE_ALPHA 0x00100000
#define FX_UM_E1_INTENSITY 0x00200000
#define FX_UM_E1_RGB 0x00400000
#define FX_UM_E1_RGBA 0x00800000
#define FX_UM_E_IFMT 0x00fff000
#define FX_UM_COLOR_ITERATED 0x01000000
#define FX_UM_COLOR_CONSTANT 0x02000000
#define FX_UM_ALPHA_ITERATED 0x04000000
#define FX_UM_ALPHA_CONSTANT 0x08000000
/*
Memory range from startAddr to endAddr-1
*/
typedef struct MemRange_t {
struct MemRange_t *next;
FxU32 startAddr, endAddr;
} MemRange;
typedef struct {
GLsizei width, height; /* image size */
GrTextureFormat_t glideFormat; /* Glide image format */
unsigned short *data; /* Glide-formated texture image */
} tfxMipMapLevel;
typedef struct tfxTexInfo_t {
struct tfxTexInfo *next;
struct gl_texture_object *tObj;
GLuint lastTimeUsed;
FxU32 whichTMU;
GLboolean isInTM;
tfxMipMapLevel mipmapLevel[MAX_TEXTURE_LEVELS];
MemRange *tm[FX_NUM_TMU];
GLint minLevel, maxLevel;
GLint baseLevelInternalFormat;
GrTexInfo info;
GrTextureFilterMode_t minFilt;
GrTextureFilterMode_t maxFilt;
FxBool LODblend;
GrTextureClampMode_t sClamp;
GrTextureClampMode_t tClamp;
GrMipMapMode_t mmMode;
GLfloat sScale, tScale;
GLint int_sScale, int_tScale; /* x86 floating point trick for
* multiplication by powers of 2.
* Used in fxfasttmp.h
*/
GuTexPalette palette;
GLboolean fixedPalette;
GLboolean validated;
} tfxTexInfo;
typedef struct {
GLuint swapBuffer;
GLuint reqTexUpload;
GLuint texUpload;
GLuint memTexUpload;
} tfxStats;
typedef struct {
/* Alpha test */
GLboolean alphaTestEnabled;
GrCmpFnc_t alphaTestFunc;
GrAlpha_t alphaTestRefValue;
/* Blend function */
GLboolean blendEnabled;
GrAlphaBlendFnc_t blendSrcFuncRGB;
GrAlphaBlendFnc_t blendDstFuncRGB;
GrAlphaBlendFnc_t blendSrcFuncAlpha;
GrAlphaBlendFnc_t blendDstFuncAlpha;
/* Depth test */
GLboolean depthTestEnabled;
GLboolean depthMask;
GrCmpFnc_t depthTestFunc;
} tfxUnitsState;
/* Flags for fxMesa->new_state
*/
#define FX_NEW_TEXTURING 0x1
#define FX_NEW_BLEND 0x2
#define FX_NEW_ALPHA 0x4
#define FX_NEW_DEPTH 0x8
#define FX_NEW_FOG 0x10
#define FX_NEW_SCISSOR 0x20
#define FX_NEW_COLOR_MASK 0x40
#define FX_NEW_CULL 0x80
#define FX_CONTEXT(ctx) ((fxMesaContext)((ctx)->DriverCtx))
#define FX_TEXTURE_DATA(t) fxTMGetTexInfo((t)->_Current)
#define BEGIN_BOARD_LOCK()
#define END_BOARD_LOCK()
#define BEGIN_CLIP_LOOP()
#define END_CLIP_LOOP()
/* Covers the state referenced by IsInHardware:
*/
#define _FX_NEW_IS_IN_HARDWARE (_NEW_TEXTURE| \
_NEW_HINT| \
_NEW_STENCIL| \
_NEW_BUFFERS| \
_NEW_COLOR| \
_NEW_LIGHT)
/* Covers the state referenced by fxDDChooseRenderState
*/
#define _FX_NEW_RENDERSTATE (_FX_NEW_IS_IN_HARDWARE | \
_DD_NEW_FLATSHADE | \
_DD_NEW_TRI_LIGHT_TWOSIDE| \
_DD_NEW_TRI_OFFSET | \
_DD_NEW_TRI_UNFILLED | \
_DD_NEW_TRI_SMOOTH | \
_DD_NEW_TRI_STIPPLE | \
_DD_NEW_LINE_SMOOTH | \
_DD_NEW_LINE_STIPPLE | \
_DD_NEW_LINE_WIDTH | \
_DD_NEW_POINT_SMOOTH | \
_DD_NEW_POINT_SIZE | \
_NEW_LINE)
/* Covers the state referenced by fxDDChooseSetupFunction.
*/
#define _FX_NEW_SETUP_FUNCTION (_NEW_LIGHT| \
_NEW_FOG| \
_NEW_TEXTURE| \
_NEW_COLOR) \
/* Covers the state referenced in fxDDCheckVtxfmt.
*/
#define _FX_NEW_VTXFMT (_NEW_TEXTURE | \
_NEW_TEXTURE_MATRIX | \
_NEW_TRANSFORM | \
_NEW_LIGHT | \
_NEW_PROJECTION | \
_NEW_MODELVIEW | \
_TNL_NEW_NEED_EYE_COORDS | \
_FX_NEW_RENDERSTATE)
/* These lookup table are used to extract RGB values in [0,255] from
* 16-bit pixel values.
*/
extern GLubyte FX_PixelToR[0x10000];
extern GLubyte FX_PixelToG[0x10000];
extern GLubyte FX_PixelToB[0x10000];
typedef void (*fx_tri_func)( GLcontext *, const fxVertex *,
const fxVertex *, const fxVertex * );
typedef void (*fx_line_func)( GLcontext *, const fxVertex *, const fxVertex * );
typedef void (*fx_point_func)( GLcontext *, const fxVertex * );
struct tfxMesaContext {
GuTexPalette glbPalette;
GLcontext *glCtx; /* the core Mesa context */
GLvisual *glVis; /* describes the color buffer */
GLframebuffer *glBuffer; /* the ancillary buffers */
GLint board; /* the board used for this context */
GLint width, height; /* size of color buffer */
GrBuffer_t currentFB;
GLboolean bgrOrder;
GrColor_t color;
GrColor_t clearC;
GrAlpha_t clearA;
GLuint constColor;
GrCullMode_t cullMode;
tfxUnitsState unitsState;
tfxUnitsState restoreUnitsState; /* saved during multipass */
GLuint new_state;
/* Texture Memory Manager Data
*/
GLuint texBindNumber;
GLint tmuSrc;
GLuint lastUnitsMode;
GLuint freeTexMem[FX_NUM_TMU];
MemRange *tmPool;
MemRange *tmFree[FX_NUM_TMU];
GLenum fogTableMode;
GLfloat fogDensity;
GLfloat fogStart, fogEnd;
GrFog_t *fogTable;
GLint textureAlign;
/* Vertex building and storage:
*/
GLuint tmu_source[FX_NUM_TMU];
GLuint tex_dest[MAX_TEXTURE_UNITS];
GLuint setupindex;
GLuint setup_gone; /* for multipass */
GLuint stw_hint_state; /* for grHints */
fxVertex *verts;
/* Rasterization:
*/
GLuint render_index;
GLuint passes, multipass;
GLuint is_in_hardware;
GLenum render_prim;
/* Current rasterization functions
*/
fx_point_func draw_point;
fx_line_func draw_line;
fx_tri_func draw_tri;
/* System to turn culling on/off for tris/lines/points.
*/
fx_point_func initial_point;
fx_line_func initial_line;
fx_tri_func initial_tri;
fx_point_func subsequent_point;
fx_line_func subsequent_line;
fx_tri_func subsequent_tri;
/* Keep texture scales somewhere handy:
*/
GLfloat s0scale;
GLfloat s1scale;
GLfloat t0scale;
GLfloat t1scale;
GLfloat inv_s0scale;
GLfloat inv_s1scale;
GLfloat inv_t0scale;
GLfloat inv_t1scale;
/* Glide stuff
*/
tfxStats stats;
void *state;
/* Options */
GLboolean verbose;
GLboolean haveTwoTMUs; /* True if we really have 2 tmu's */
GLboolean emulateTwoTMUs; /* True if we present 2 tmu's to mesa. */
GLboolean haveAlphaBuffer;
GLboolean haveZBuffer;
GLboolean haveDoubleBuffer;
GLboolean haveGlobalPaletteTexture;
GLint swapInterval;
GLint maxPendingSwapBuffers;
FX_GrContext_t glideContext;
int screen_width;
int screen_height;
int initDone;
int clipMinX;
int clipMaxX;
int clipMinY;
int clipMaxY;
/* fxvtxfmt
*/
GLboolean allow_vfmt;
GLvertexformat vtxfmt;
fxClipVertex current;
fxClipVertex *vert; /* points into verts[] */
void (*fire_on_vertex)( GLcontext * );
void (*fire_on_end)( GLcontext * );
void (*fire_on_fallback)( GLcontext * );
vfmt_project_func project_vertex;
vfmt_interpolate_func interpolate_vertices;
int vtxfmt_fallback_count;
int vtxfmt_installed;
void (*old_begin)( GLenum );
GLenum prim;
GLuint accel_light;
GLfloat basecolor[4];
/* Projected vertices, fastpath data:
*/
GLvector1ui clipped_elements;
fxVertex *last_vert;
GLuint size;
};
typedef void (*tfxSetupFunc)(GLcontext *ctx, GLuint, GLuint );
extern GrHwConfiguration glbHWConfig;
extern int glbCurrentBoard;
extern void fxSetupFXUnits(GLcontext *);
extern void fxSetupDDPointers(GLcontext *);
/* fxvsetup:
*/
extern void fxDDSetupInit(void);
extern void fxAllocVB( GLcontext *ctx );
extern void fxFreeVB( GLcontext *ctx );
extern void fxPrintSetupFlags( const char *msg, GLuint flags );
extern void fx_BuildProjVerts( GLcontext *ctx,
GLuint start, GLuint count,
GLuint newinputs );
extern void fx_validate_BuildProjVerts(GLcontext *ctx,
GLuint start, GLuint count,
GLuint newinputs );
/* fxtrifuncs:
*/
extern void fxDDTrifuncInit(void);
extern void fxDDChooseRenderState( GLcontext *ctx );
extern void fxUpdateDDSpanPointers(GLcontext *);
extern void fxSetupDDSpanPointers(GLcontext *);
extern void fxPrintTextureData(tfxTexInfo *ti);
extern GLboolean fxDDTexImage2D(GLcontext *ctx, GLenum target, GLint level,
GLenum format, GLenum type, const GLvoid *pixels,
const struct gl_pixelstore_attrib *packing,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage,
GLboolean *retainInternalCopy);
extern GLboolean fxDDTexSubImage2D(GLcontext *ctx, GLenum target, GLint level,
GLint xoffset, GLint yoffset,
GLsizei width, GLsizei height,
GLenum format, GLenum type, const GLvoid *pixels,
const struct gl_pixelstore_attrib *packing,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage);
extern GLvoid *fxDDGetTexImage(GLcontext *ctx, GLenum target, GLint level,
const struct gl_texture_object *texObj,
GLenum *formatOut, GLenum *typeOut,
GLboolean *freeImageOut );
extern void fxDDTexEnv(GLcontext *, GLenum, GLenum, const GLfloat *);
extern void fxDDTexParam(GLcontext *, GLenum, struct gl_texture_object *,
GLenum, const GLfloat *);
extern void fxDDTexBind(GLcontext *, GLenum, struct gl_texture_object *);
extern void fxDDTexDel(GLcontext *, struct gl_texture_object *);
extern void fxDDTexPalette(GLcontext *, struct gl_texture_object *);
extern void fxDDTexUseGlbPalette(GLcontext *, GLboolean);
extern void fxDDEnable(GLcontext *, GLenum, GLboolean);
extern void fxDDAlphaFunc(GLcontext *, GLenum, GLclampf);
extern void fxDDBlendFunc(GLcontext *, GLenum, GLenum);
extern void fxDDDepthMask(GLcontext *, GLboolean);
extern void fxDDDepthFunc(GLcontext *, GLenum);
extern void fxDDInitExtensions( GLcontext *ctx );
#define fxTMGetTexInfo(o) ((tfxTexInfo*)((o)->DriverData))
extern void fxTMInit(fxMesaContext ctx);
extern void fxTMClose(fxMesaContext ctx);
extern void fxTMRestoreTextures_NoLock(fxMesaContext ctx);
extern void fxTMMoveInTM(fxMesaContext, struct gl_texture_object *, GLint);
extern void fxTMMoveOutTM(fxMesaContext, struct gl_texture_object *);
#define fxTMMoveOutTM_NoLock fxTMMoveOutTM
extern void fxTMFreeTexture(fxMesaContext, struct gl_texture_object *);
extern void fxTMReloadMipMapLevel(fxMesaContext, struct gl_texture_object *, GLint);
extern void fxTMReloadSubMipMapLevel(fxMesaContext, struct gl_texture_object *,
GLint, GLint, GLint);
extern void fxTexGetFormat(GLenum, GrTextureFormat_t *, GLint *);
extern int fxTexGetInfo(int, int, GrLOD_t *, GrAspectRatio_t *,
float *, float *, int *, int *, int *, int *);
extern void fxDDScissor( GLcontext *ctx,
GLint x, GLint y, GLsizei w, GLsizei h );
extern void fxDDFogfv( GLcontext *ctx, GLenum pname, const GLfloat *params );
extern void fxDDColorMask(GLcontext *ctx,
GLboolean r, GLboolean g,
GLboolean b, GLboolean a );
extern void fxDDWriteDepthSpan(GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLdepth depth[], const GLubyte mask[]);
extern void fxDDReadDepthSpan(GLcontext *ctx, GLuint n, GLint x, GLint y,
GLdepth depth[]);
extern void fxDDWriteDepthPixels(GLcontext *ctx, GLuint n,
const GLint x[], const GLint y[],
const GLdepth depth[], const GLubyte mask[]);
extern void fxDDReadDepthPixels(GLcontext *ctx, GLuint n,
const GLint x[], const GLint y[],
GLdepth depth[]);
extern void fxDDShadeModel(GLcontext *ctx, GLenum mode);
extern void fxDDCullFace(GLcontext *ctx, GLenum mode);
extern void fxDDFrontFace(GLcontext *ctx, GLenum mode);
extern void fxPrintRenderState( const char *msg, GLuint state );
extern void fxPrintHintState( const char *msg, GLuint state );
extern int fxDDInitFxMesaContext( fxMesaContext fxMesa );
extern void fxDDDestroyFxMesaContext( fxMesaContext fxMesa );
extern void fxSetScissorValues(GLcontext *ctx);
extern void fxTMMoveInTM_NoLock(fxMesaContext fxMesa,
struct gl_texture_object *tObj,
GLint where);
extern void fxInitPixelTables(fxMesaContext fxMesa, GLboolean bgrOrder);
/* fxvtxfmt:
*/
extern void fxDDCheckVtxfmt( GLcontext *ctx );
extern void fx_update_lighting( GLcontext *ctx );
extern void fxDDInitVtxfmt( GLcontext *ctx );
/* fxsimplerender
*/
extern const struct gl_pipeline_stage fx_render_stage;
#endif
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