3 * Mesa 3-D graphics library
6 * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 * Original Mesa / 3Dfx device driver (C) 1999 David Bucciarelli, by the
29 * Thank you for your contribution, David!
31 * Please make note of the above copyright/license statement. If you
32 * contributed code or bug fixes to this code under the previous (GNU
33 * Library) license and object to the new license, your code will be
34 * removed at your request. Please see the Mesa docs/COPYRIGHT file
35 * for more information.
37 * Additional Mesa/3Dfx driver developers:
38 * Daryll Strauss <daryll@precisioninsight.com>
39 * Keith Whitwell <keith@precisioninsight.com>
41 * See fxapi.h for more revision/author details.
48 /* If you comment out this define, a variable takes its place, letting
49 * you turn debugging on/off from the debugger.
55 #if defined(__linux__)
65 #include "GL/fxmesa.h"
68 #include "math/m_vector.h"
71 /* Define some shorter names for these things.
73 #define XCOORD GR_VERTEX_X_OFFSET
74 #define YCOORD GR_VERTEX_Y_OFFSET
75 #define ZCOORD GR_VERTEX_OOZ_OFFSET
76 #define OOWCOORD GR_VERTEX_OOW_OFFSET
78 #define RCOORD GR_VERTEX_R_OFFSET
79 #define GCOORD GR_VERTEX_G_OFFSET
80 #define BCOORD GR_VERTEX_B_OFFSET
81 #define ACOORD GR_VERTEX_A_OFFSET
83 #define S0COORD GR_VERTEX_SOW_TMU0_OFFSET
84 #define T0COORD GR_VERTEX_TOW_TMU0_OFFSET
85 #define S1COORD GR_VERTEX_SOW_TMU1_OFFSET
86 #define T1COORD GR_VERTEX_TOW_TMU1_OFFSET
89 extern float gl_ubyte_to_float_255_color_tab
[256];
90 #define UBYTE_COLOR_TO_FLOAT_255_COLOR(c) gl_ubyte_to_float_255_color_tab[c]
91 #define UBYTE_COLOR_TO_FLOAT_255_COLOR2(f,c) \
92 (*(int *)&(f)) = ((int *)gl_ubyte_to_float_255_color_tab)[c]
97 /* Should have size == 16 * sizeof(float).
107 /* Used in the fxvtxfmt t&l engine.
113 GLfloat texcoord
[2][2];
115 GLfloat normal
[3]; /* for replay & fallback */
121 typedef void (*vfmt_project_func
) (GLcontext
* ctx
, fxClipVertex
* v
);
122 typedef void (*vfmt_interpolate_func
) (GLfloat t
,
124 const fxClipVertex
* I
,
125 const fxClipVertex
* J
);
129 #if defined(FXMESA_USE_ARGB)
130 #define FXCOLOR4( c ) ( \
131 ( ((unsigned int)(c[3]))<<24 ) | \
132 ( ((unsigned int)(c[0]))<<16 ) | \
133 ( ((unsigned int)(c[1]))<<8 ) | \
134 ( (unsigned int)(c[2])) )
138 #define FXCOLOR4( c ) (* (int *)c)
140 #define FXCOLOR4( c ) ( \
141 ( ((unsigned int)(c[3]))<<24 ) | \
142 ( ((unsigned int)(c[2]))<<16 ) | \
143 ( ((unsigned int)(c[1]))<<8 ) | \
144 ( (unsigned int)(c[0])) )
150 /* fastpath/vtxfmt flags first
152 #define SETUP_TMU0 0x1
153 #define SETUP_TMU1 0x2
154 #define SETUP_RGBA 0x4
155 #define SETUP_SNAP 0x8
156 #define SETUP_XYZW 0x10
157 #define MAX_SETUP 0x20
162 #define FX_TMU0 GR_TMU0
163 #define FX_TMU1 GR_TMU1
164 #define FX_TMU_SPLIT 98
165 #define FX_TMU_BOTH 99
166 #define FX_TMU_NONE 100
168 /* Used for fxMesa->lastUnitsMode */
170 #define FX_UM_NONE 0x00000000
172 #define FX_UM_E0_REPLACE 0x00000001
173 #define FX_UM_E0_MODULATE 0x00000002
174 #define FX_UM_E0_DECAL 0x00000004
175 #define FX_UM_E0_BLEND 0x00000008
176 #define FX_UM_E0_ADD 0x00000010
178 #define FX_UM_E1_REPLACE 0x00000020
179 #define FX_UM_E1_MODULATE 0x00000040
180 #define FX_UM_E1_DECAL 0x00000080
181 #define FX_UM_E1_BLEND 0x00000100
182 #define FX_UM_E1_ADD 0x00000200
184 #define FX_UM_E_ENVMODE 0x000003ff
186 #define FX_UM_E0_ALPHA 0x00001000
187 #define FX_UM_E0_LUMINANCE 0x00002000
188 #define FX_UM_E0_LUMINANCE_ALPHA 0x00004000
189 #define FX_UM_E0_INTENSITY 0x00008000
190 #define FX_UM_E0_RGB 0x00010000
191 #define FX_UM_E0_RGBA 0x00020000
193 #define FX_UM_E1_ALPHA 0x00040000
194 #define FX_UM_E1_LUMINANCE 0x00080000
195 #define FX_UM_E1_LUMINANCE_ALPHA 0x00100000
196 #define FX_UM_E1_INTENSITY 0x00200000
197 #define FX_UM_E1_RGB 0x00400000
198 #define FX_UM_E1_RGBA 0x00800000
200 #define FX_UM_E_IFMT 0x00fff000
202 #define FX_UM_COLOR_ITERATED 0x01000000
203 #define FX_UM_COLOR_CONSTANT 0x02000000
204 #define FX_UM_ALPHA_ITERATED 0x04000000
205 #define FX_UM_ALPHA_CONSTANT 0x08000000
209 Memory range from startAddr to endAddr-1
211 typedef struct MemRange_t
213 struct MemRange_t
*next
;
214 FxU32 startAddr
, endAddr
;
220 GLsizei width
, height
; /* image size */
221 GLint wScale
, hScale
; /* image scale factor */
222 GrTextureFormat_t glideFormat
; /* Glide image format */
227 * TDFX-specific texture object data. This hangs off of the
228 * struct gl_texture_object DriverData pointer.
230 typedef struct tfxTexInfo_t
232 struct tfxTexInfo_t
*next
;
233 struct gl_texture_object
*tObj
;
239 MemRange
*tm
[FX_NUM_TMU
];
241 GLint minLevel
, maxLevel
;
242 GLint baseLevelInternalFormat
;
246 GrTextureFilterMode_t minFilt
;
247 GrTextureFilterMode_t maxFilt
;
250 GrTextureClampMode_t sClamp
;
251 GrTextureClampMode_t tClamp
;
253 GrMipMapMode_t mmMode
;
255 GLfloat sScale
, tScale
;
256 GLint int_sScale
, int_tScale
; /* x86 floating point trick for
257 * multiplication by powers of 2.
258 * Used in fxfasttmp.h
261 GuTexPalette palette
;
263 GLboolean fixedPalette
;
283 GLboolean alphaTestEnabled
;
284 GrCmpFnc_t alphaTestFunc
;
285 GrAlpha_t alphaTestRefValue
;
289 GLboolean blendEnabled
;
290 GrAlphaBlendFnc_t blendSrcFuncRGB
;
291 GrAlphaBlendFnc_t blendDstFuncRGB
;
292 GrAlphaBlendFnc_t blendSrcFuncAlpha
;
293 GrAlphaBlendFnc_t blendDstFuncAlpha
;
297 GLboolean depthTestEnabled
;
299 GrCmpFnc_t depthTestFunc
;
306 /* Flags for fxMesa->new_state
308 #define FX_NEW_TEXTURING 0x1
309 #define FX_NEW_BLEND 0x2
310 #define FX_NEW_ALPHA 0x4
311 #define FX_NEW_DEPTH 0x8
312 #define FX_NEW_FOG 0x10
313 #define FX_NEW_SCISSOR 0x20
314 #define FX_NEW_COLOR_MASK 0x40
315 #define FX_NEW_CULL 0x80
318 #define FX_CONTEXT(ctx) ((fxMesaContext)((ctx)->DriverCtx))
320 #define FX_TEXTURE_DATA(texUnit) fxTMGetTexInfo((texUnit)->_Current)
322 #define fxTMGetTexInfo(o) ((tfxTexInfo*)((o)->DriverData))
324 #define FX_MIPMAP_DATA(img) ((tfxMipMapLevel *) (img)->DriverData)
326 #define BEGIN_BOARD_LOCK()
327 #define END_BOARD_LOCK()
328 #define BEGIN_CLIP_LOOP()
329 #define END_CLIP_LOOP()
334 /* Covers the state referenced by IsInHardware:
336 #define _FX_NEW_IS_IN_HARDWARE (_NEW_TEXTURE| \
343 /* Covers the state referenced by fxDDChooseRenderState
345 #define _FX_NEW_RENDERSTATE (_FX_NEW_IS_IN_HARDWARE | \
346 _DD_NEW_FLATSHADE | \
347 _DD_NEW_TRI_LIGHT_TWOSIDE| \
348 _DD_NEW_TRI_OFFSET | \
349 _DD_NEW_TRI_UNFILLED | \
350 _DD_NEW_TRI_SMOOTH | \
351 _DD_NEW_TRI_STIPPLE | \
352 _DD_NEW_LINE_SMOOTH | \
353 _DD_NEW_LINE_STIPPLE | \
354 _DD_NEW_LINE_WIDTH | \
355 _DD_NEW_POINT_SMOOTH | \
356 _DD_NEW_POINT_SIZE | \
359 /* Covers the state referenced by fxDDChooseSetupFunction.
361 #define _FX_NEW_SETUP_FUNCTION (_NEW_LIGHT| \
367 /* Covers the state referenced in fxDDCheckVtxfmt.
369 #define _FX_NEW_VTXFMT (_NEW_TEXTURE | \
370 _NEW_TEXTURE_MATRIX | \
375 _TNL_NEW_NEED_EYE_COORDS | \
379 /* These lookup table are used to extract RGB values in [0,255] from
380 * 16-bit pixel values.
382 extern GLubyte FX_PixelToR
[0x10000];
383 extern GLubyte FX_PixelToG
[0x10000];
384 extern GLubyte FX_PixelToB
[0x10000];
387 typedef void (*fx_tri_func
) (GLcontext
*, const fxVertex
*,
388 const fxVertex
*, const fxVertex
*);
389 typedef void (*fx_line_func
) (GLcontext
*, const fxVertex
*,
391 typedef void (*fx_point_func
) (GLcontext
*, const fxVertex
*);
393 struct tfxMesaContext
395 GuTexPalette glbPalette
;
397 GLcontext
*glCtx
; /* the core Mesa context */
398 GLvisual
*glVis
; /* describes the color buffer */
399 GLframebuffer
*glBuffer
; /* the ancillary buffers */
401 GLint board
; /* the board used for this context */
402 GLint width
, height
; /* size of color buffer */
404 GrBuffer_t currentFB
;
411 GrCullMode_t cullMode
;
413 tfxUnitsState unitsState
;
414 tfxUnitsState restoreUnitsState
; /* saved during multipass */
419 /* Texture Memory Manager Data
421 GLuint texBindNumber
;
423 GLuint lastUnitsMode
;
424 GLuint freeTexMem
[FX_NUM_TMU
];
426 MemRange
*tmFree
[FX_NUM_TMU
];
430 GLfloat fogStart
, fogEnd
;
434 /* Vertex building and storage:
436 GLuint tmu_source
[FX_NUM_TMU
];
437 GLuint tex_dest
[MAX_TEXTURE_UNITS
];
439 GLuint setup_gone
; /* for multipass */
440 GLuint stw_hint_state
; /* for grHints */
447 GLuint passes
, multipass
;
448 GLuint is_in_hardware
;
451 /* Current rasterization functions
453 fx_point_func draw_point
;
454 fx_line_func draw_line
;
455 fx_tri_func draw_tri
;
457 /* System to turn culling on/off for tris/lines/points.
459 fx_point_func initial_point
;
460 fx_line_func initial_line
;
461 fx_tri_func initial_tri
;
463 fx_point_func subsequent_point
;
464 fx_line_func subsequent_line
;
465 fx_tri_func subsequent_tri
;
467 /* Keep texture scales somewhere handy:
487 GLboolean haveTwoTMUs
; /* True if we really have 2 tmu's */
488 GLboolean emulateTwoTMUs
; /* True if we present 2 tmu's to mesa. */
489 GLboolean haveAlphaBuffer
;
490 GLboolean haveZBuffer
;
491 GLboolean haveDoubleBuffer
;
492 GLboolean haveGlobalPaletteTexture
;
494 GLint maxPendingSwapBuffers
;
496 FX_GrContext_t glideContext
;
508 GLboolean allow_vfmt
;
509 GLvertexformat vtxfmt
;
510 fxClipVertex current
;
511 fxClipVertex
*vert
; /* points into verts[] */
512 void (*fire_on_vertex
) (GLcontext
*);
513 void (*fire_on_end
) (GLcontext
*);
514 void (*fire_on_fallback
) (GLcontext
*);
516 vfmt_project_func project_vertex
;
517 vfmt_interpolate_func interpolate_vertices
;
519 int vtxfmt_fallback_count
;
520 int vtxfmt_installed
;
521 void (*old_begin
) (GLenum
);
525 GLfloat basecolor
[4];
528 /* Projected vertices, fastpath data:
530 GLvector1ui clipped_elements
;
535 typedef void (*tfxSetupFunc
) (GLcontext
* ctx
, GLuint
, GLuint
);
537 extern GrHwConfiguration glbHWConfig
;
538 extern int glbCurrentBoard
;
540 extern void fxSetupFXUnits(GLcontext
*);
541 extern void fxSetupDDPointers(GLcontext
*);
545 extern void fxDDSetupInit(void);
546 extern void fxAllocVB(GLcontext
* ctx
);
547 extern void fxFreeVB(GLcontext
* ctx
);
548 extern void fxPrintSetupFlags(const char *msg
, GLuint flags
);
549 extern void fx_BuildProjVerts(GLcontext
* ctx
,
550 GLuint start
, GLuint count
, GLuint newinputs
);
551 extern void fx_validate_BuildProjVerts(GLcontext
* ctx
,
552 GLuint start
, GLuint count
,
557 extern void fxDDTrifuncInit(void);
558 extern void fxDDChooseRenderState(GLcontext
* ctx
);
561 extern void fxUpdateDDSpanPointers(GLcontext
*);
562 extern void fxSetupDDSpanPointers(GLcontext
*);
564 extern void fxPrintTextureData(tfxTexInfo
* ti
);
566 extern const struct gl_texture_format
*
567 fxDDChooseTextureFormat( GLcontext
*ctx
, GLint internalFormat
,
568 GLenum srcFormat
, GLenum srcType
);
569 extern void fxDDTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
570 GLint internalFormat
, GLint width
, GLint height
,
571 GLint border
, GLenum format
, GLenum type
,
572 const GLvoid
* pixels
,
573 const struct gl_pixelstore_attrib
*packing
,
574 struct gl_texture_object
*texObj
,
575 struct gl_texture_image
*texImage
);
577 extern void fxDDTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
578 GLint xoffset
, GLint yoffset
,
579 GLsizei width
, GLsizei height
,
580 GLenum format
, GLenum type
,
581 const GLvoid
* pixels
,
582 const struct gl_pixelstore_attrib
*packing
,
583 struct gl_texture_object
*texObj
,
584 struct gl_texture_image
*texImage
);
585 extern void fxDDTexEnv(GLcontext
*, GLenum
, GLenum
, const GLfloat
*);
586 extern void fxDDTexParam(GLcontext
*, GLenum
, struct gl_texture_object
*,
587 GLenum
, const GLfloat
*);
588 extern void fxDDTexBind(GLcontext
*, GLenum
, struct gl_texture_object
*);
589 extern void fxDDTexDel(GLcontext
*, struct gl_texture_object
*);
590 extern void fxDDTexPalette(GLcontext
*, struct gl_texture_object
*);
591 extern void fxDDTexUseGlbPalette(GLcontext
*, GLboolean
);
593 extern void fxDDEnable(GLcontext
*, GLenum
, GLboolean
);
594 extern void fxDDAlphaFunc(GLcontext
*, GLenum
, GLchan
);
595 extern void fxDDBlendFunc(GLcontext
*, GLenum
, GLenum
);
596 extern void fxDDDepthMask(GLcontext
*, GLboolean
);
597 extern void fxDDDepthFunc(GLcontext
*, GLenum
);
599 extern void fxDDInitExtensions(GLcontext
* ctx
);
601 extern void fxTMInit(fxMesaContext ctx
);
602 extern void fxTMClose(fxMesaContext ctx
);
603 extern void fxTMRestoreTextures_NoLock(fxMesaContext ctx
);
604 extern void fxTMMoveInTM(fxMesaContext
, struct gl_texture_object
*, GLint
);
605 extern void fxTMMoveOutTM(fxMesaContext
, struct gl_texture_object
*);
606 #define fxTMMoveOutTM_NoLock fxTMMoveOutTM
607 extern void fxTMFreeTexture(fxMesaContext
, struct gl_texture_object
*);
608 extern void fxTMReloadMipMapLevel(fxMesaContext
, struct gl_texture_object
*,
610 extern void fxTMReloadSubMipMapLevel(fxMesaContext
,
611 struct gl_texture_object
*, GLint
, GLint
,
614 extern void fxTexGetFormat(GLenum
, GrTextureFormat_t
*, GLint
*);
615 extern int fxTexGetInfo(int, int, GrLOD_t
*, GrAspectRatio_t
*,
616 float *, float *, int *, int *, int *, int *);
618 extern void fxDDScissor(GLcontext
* ctx
,
619 GLint x
, GLint y
, GLsizei w
, GLsizei h
);
620 extern void fxDDFogfv(GLcontext
* ctx
, GLenum pname
, const GLfloat
* params
);
621 extern void fxDDColorMask(GLcontext
* ctx
,
622 GLboolean r
, GLboolean g
, GLboolean b
, GLboolean a
);
624 extern void fxDDWriteDepthSpan(GLcontext
* ctx
, GLuint n
, GLint x
, GLint y
,
625 const GLdepth depth
[], const GLubyte mask
[]);
627 extern void fxDDReadDepthSpan(GLcontext
* ctx
, GLuint n
, GLint x
, GLint y
,
630 extern void fxDDWriteDepthPixels(GLcontext
* ctx
, GLuint n
,
631 const GLint x
[], const GLint y
[],
632 const GLdepth depth
[], const GLubyte mask
[]);
634 extern void fxDDReadDepthPixels(GLcontext
* ctx
, GLuint n
,
635 const GLint x
[], const GLint y
[],
638 extern void fxDDShadeModel(GLcontext
* ctx
, GLenum mode
);
640 extern void fxDDCullFace(GLcontext
* ctx
, GLenum mode
);
641 extern void fxDDFrontFace(GLcontext
* ctx
, GLenum mode
);
643 extern void fxPrintRenderState(const char *msg
, GLuint state
);
644 extern void fxPrintHintState(const char *msg
, GLuint state
);
646 extern int fxDDInitFxMesaContext(fxMesaContext fxMesa
);
647 extern void fxDDDestroyFxMesaContext(fxMesaContext fxMesa
);
652 extern void fxSetScissorValues(GLcontext
* ctx
);
653 extern void fxTMMoveInTM_NoLock(fxMesaContext fxMesa
,
654 struct gl_texture_object
*tObj
, GLint where
);
655 extern void fxInitPixelTables(fxMesaContext fxMesa
, GLboolean bgrOrder
);
660 extern void fxDDCheckVtxfmt(GLcontext
* ctx
);
661 extern void fx_update_lighting(GLcontext
* ctx
);
662 extern void fxDDInitVtxfmt(GLcontext
* ctx
);
666 extern const struct gl_pipeline_stage fx_render_stage
;