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__)
66 #include "GL/fxmesa.h"
69 #include "math/m_vector.h"
71 /* use gl/gl.h GLAPI/GLAPIENTRY/GLCALLBACK in place of
72 * WINGDIAPI/APIENTRY/CALLBACK, these are defined in mesa gl/gl.h -
78 extern void fx_sanity_triangle( GrVertex
*, GrVertex
*, GrVertex
* );
79 #if defined(MESA_DEBUG) && 0
80 #define grDrawTriangle fx_sanity_triangle
84 /* Define some shorter names for these things.
86 #define XCOORD GR_VERTEX_X_OFFSET
87 #define YCOORD GR_VERTEX_Y_OFFSET
88 #define ZCOORD GR_VERTEX_OOZ_OFFSET
89 #define OOWCOORD GR_VERTEX_OOW_OFFSET
91 #define RCOORD GR_VERTEX_R_OFFSET
92 #define GCOORD GR_VERTEX_G_OFFSET
93 #define BCOORD GR_VERTEX_B_OFFSET
94 #define ACOORD GR_VERTEX_A_OFFSET
96 #define S0COORD GR_VERTEX_SOW_TMU0_OFFSET
97 #define T0COORD GR_VERTEX_TOW_TMU0_OFFSET
98 #define S1COORD GR_VERTEX_SOW_TMU1_OFFSET
99 #define T1COORD GR_VERTEX_TOW_TMU1_OFFSET
103 #define CLIP_XCOORD 0 /* normal place */
104 #define CLIP_YCOROD 1 /* normal place */
105 #define CLIP_ZCOORD 2 /* GR_VERTEX_Z_OFFSET */
106 #define CLIP_WCOORD 3 /* GR_VERTEX_R_OFFSET */
107 #define CLIP_GCOORD 4 /* normal place */
108 #define CLIP_BCOORD 5 /* normal place */
109 #define CLIP_RCOORD 6 /* GR_VERTEX_OOZ_OFFSET */
110 #define CLIP_ACOORD 7 /* normal place */
114 /* Should have size == 16 * sizeof(float).
123 #if defined(FXMESA_USE_ARGB)
124 #define FXCOLOR4( c ) ( \
125 ( ((unsigned int)(c[3]))<<24 ) | \
126 ( ((unsigned int)(c[0]))<<16 ) | \
127 ( ((unsigned int)(c[1]))<<8 ) | \
128 ( (unsigned int)(c[2])) )
132 #define FXCOLOR4( c ) (* (int *)c)
134 #define FXCOLOR4( c ) ( \
135 ( ((unsigned int)(c[3]))<<24 ) | \
136 ( ((unsigned int)(c[2]))<<16 ) | \
137 ( ((unsigned int)(c[1]))<<8 ) | \
138 ( (unsigned int)(c[0])) )
144 /* Mergable items first
146 #define SETUP_RGBA 0x1
147 #define SETUP_TMU0 0x2
148 #define SETUP_TMU1 0x4
149 #define SETUP_XYZW 0x8
150 #define MAX_SETUP 0x10
152 #define MAX_MERGABLE 0x8
157 #define FX_TMU0 GR_TMU0
158 #define FX_TMU1 GR_TMU1
159 #define FX_TMU_SPLIT 98
160 #define FX_TMU_BOTH 99
161 #define FX_TMU_NONE 100
163 /* Used for fxMesa->lastUnitsMode */
165 #define FX_UM_NONE 0x00000000
167 #define FX_UM_E0_REPLACE 0x00000001
168 #define FX_UM_E0_MODULATE 0x00000002
169 #define FX_UM_E0_DECAL 0x00000004
170 #define FX_UM_E0_BLEND 0x00000008
171 #define FX_UM_E0_ADD 0x00000010
173 #define FX_UM_E1_REPLACE 0x00000020
174 #define FX_UM_E1_MODULATE 0x00000040
175 #define FX_UM_E1_DECAL 0x00000080
176 #define FX_UM_E1_BLEND 0x00000100
177 #define FX_UM_E1_ADD 0x00000200
179 #define FX_UM_E_ENVMODE 0x000003ff
181 #define FX_UM_E0_ALPHA 0x00001000
182 #define FX_UM_E0_LUMINANCE 0x00002000
183 #define FX_UM_E0_LUMINANCE_ALPHA 0x00004000
184 #define FX_UM_E0_INTENSITY 0x00008000
185 #define FX_UM_E0_RGB 0x00010000
186 #define FX_UM_E0_RGBA 0x00020000
188 #define FX_UM_E1_ALPHA 0x00040000
189 #define FX_UM_E1_LUMINANCE 0x00080000
190 #define FX_UM_E1_LUMINANCE_ALPHA 0x00100000
191 #define FX_UM_E1_INTENSITY 0x00200000
192 #define FX_UM_E1_RGB 0x00400000
193 #define FX_UM_E1_RGBA 0x00800000
195 #define FX_UM_E_IFMT 0x00fff000
197 #define FX_UM_COLOR_ITERATED 0x01000000
198 #define FX_UM_COLOR_CONSTANT 0x02000000
199 #define FX_UM_ALPHA_ITERATED 0x04000000
200 #define FX_UM_ALPHA_CONSTANT 0x08000000
202 typedef void (*tfxRenderVBFunc
)(GLcontext
*);
205 Memory range from startAddr to endAddr-1
207 typedef struct MemRange_t
{
208 struct MemRange_t
*next
;
209 FxU32 startAddr
, endAddr
;
213 GLsizei width
, height
; /* image size */
214 GrTextureFormat_t glideFormat
; /* Glide image format */
215 unsigned short *data
; /* Glide-formated texture image */
218 typedef struct tfxTexInfo_t
{
219 struct tfxTexInfo
*next
;
220 struct gl_texture_object
*tObj
;
226 tfxMipMapLevel mipmapLevel
[MAX_TEXTURE_LEVELS
];
228 MemRange
*tm
[FX_NUM_TMU
];
230 GLint minLevel
, maxLevel
;
231 GLint baseLevelInternalFormat
;
235 GrTextureFilterMode_t minFilt
;
236 GrTextureFilterMode_t maxFilt
;
239 GrTextureClampMode_t sClamp
;
240 GrTextureClampMode_t tClamp
;
242 GrMipMapMode_t mmMode
;
244 GLfloat sScale
, tScale
;
245 GLint int_sScale
, int_tScale
; /* x86 floating point trick for
246 * multiplication by powers of 2.
247 * Used in fxfasttmp.h
250 GuTexPalette palette
;
252 GLboolean fixedPalette
;
268 GLboolean alphaTestEnabled
;
269 GrCmpFnc_t alphaTestFunc
;
270 GrAlpha_t alphaTestRefValue
;
274 GLboolean blendEnabled
;
275 GrAlphaBlendFnc_t blendSrcFuncRGB
;
276 GrAlphaBlendFnc_t blendDstFuncRGB
;
277 GrAlphaBlendFnc_t blendSrcFuncAlpha
;
278 GrAlphaBlendFnc_t blendDstFuncAlpha
;
282 GLboolean depthTestEnabled
;
284 GrCmpFnc_t depthTestFunc
;
290 /* Flags for fxMesa->new_state
292 #define FX_NEW_TEXTURING 0x1
293 #define FX_NEW_BLEND 0x2
294 #define FX_NEW_ALPHA 0x4
295 #define FX_NEW_DEPTH 0x8
296 #define FX_NEW_FOG 0x10
297 #define FX_NEW_SCISSOR 0x20
298 #define FX_NEW_COLOR_MASK 0x40
299 #define FX_NEW_CULL 0x80
301 /* FX struct stored in VB->driver_data.
303 struct tfxMesaVertexBuffer
{
304 GLvector1ui clipped_elements
;
313 #define FX_DRIVER_DATA(vb) ((struct tfxMesaVertexBuffer *)((vb)->driver_data))
314 #define FX_CONTEXT(ctx) ((fxMesaContext)((ctx)->DriverCtx))
315 #define FX_TEXTURE_DATA(t) fxTMGetTexInfo((t)->_Current)
317 #define BEGIN_BOARD_LOCK()
318 #define END_BOARD_LOCK()
319 #define BEGIN_CLIP_LOOP()
320 #define END_CLIP_LOOP()
325 /* Covers the state referenced by IsInHardware:
327 #define _FX_NEW_IS_IN_HARDWARE (_NEW_TEXTURE| \
334 /* Covers the state referenced by fxDDChooseRenderState
336 #define _FX_NEW_RENDERSTATE (_FX_NEW_IS_IN_HARDWARE | \
337 _DD_NEW_FLATSHADE | \
338 _DD_NEW_TRI_LIGHT_TWOSIDE| \
339 _DD_NEW_TRI_OFFSET | \
340 _DD_NEW_TRI_UNFILLED | \
341 _DD_NEW_TRI_SMOOTH | \
342 _DD_NEW_TRI_STIPPLE | \
343 _DD_NEW_LINE_SMOOTH | \
344 _DD_NEW_LINE_STIPPLE | \
345 _DD_NEW_LINE_WIDTH | \
346 _DD_NEW_POINT_SMOOTH | \
347 _DD_NEW_POINT_SIZE | \
350 /* Covers the state referenced by fxDDChooseSetupFunction.
352 #define _FX_NEW_SETUP_FUNCTION (_NEW_LIGHT| \
358 /* These lookup table are used to extract RGB values in [0,255] from
359 * 16-bit pixel values.
361 extern GLubyte FX_PixelToR
[0x10000];
362 extern GLubyte FX_PixelToG
[0x10000];
363 extern GLubyte FX_PixelToB
[0x10000];
366 typedef void (*fx_tri_func
)( GLcontext
*, const fxVertex
*, const fxVertex
*, const fxVertex
* );
367 typedef void (*fx_line_func
)( GLcontext
*, const fxVertex
*, const fxVertex
* );
368 typedef void (*fx_point_func
)( GLcontext
*, const fxVertex
* );
369 typedef void (*fxRenderEltsFunc
)( struct vertex_buffer
* );
371 struct tfxMesaContext
{
372 GuTexPalette glbPalette
;
374 GLcontext
*glCtx
; /* the core Mesa context */
375 GLvisual
*glVis
; /* describes the color buffer */
376 GLframebuffer
*glBuffer
; /* the ancillary buffers */
378 GLint board
; /* the board used for this context */
379 GLint width
, height
; /* size of color buffer */
381 GrBuffer_t currentFB
;
388 GrCullMode_t cullMode
;
390 tfxUnitsState unitsState
;
391 tfxUnitsState restoreUnitsState
; /* saved during multipass */
393 GLuint tmu_source
[FX_NUM_TMU
];
394 GLuint tex_dest
[MAX_TEXTURE_UNITS
];
398 GLuint stw_hint_state
; /* for grHints */
399 GLuint is_in_hardware
;
401 GLuint using_fast_path
, passes
, multipass
;
403 /* Texture Memory Manager Data */
405 GLuint texBindNumber
;
407 GLuint lastUnitsMode
;
408 GLuint freeTexMem
[FX_NUM_TMU
];
410 MemRange
*tmFree
[FX_NUM_TMU
];
414 GLfloat fogStart
, fogEnd
;
420 fx_point_func draw_point
;
421 fx_line_func draw_line
;
422 fx_tri_func draw_tri
;
424 fxRenderEltsFunc RenderElementsRaw
;
426 /* System to turn culling on/off for tris/lines/points.
428 fx_point_func initial_point
;
429 fx_line_func initial_line
;
430 fx_tri_func initial_tri
;
432 fx_point_func subsequent_point
;
433 fx_line_func subsequent_line
;
434 fx_tri_func subsequent_tri
;
449 GLboolean haveTwoTMUs
; /* True if we really have 2 tmu's */
450 GLboolean emulateTwoTMUs
; /* True if we present 2 tmu's to mesa. */
451 GLboolean haveAlphaBuffer
;
452 GLboolean haveZBuffer
;
453 GLboolean haveDoubleBuffer
;
454 GLboolean haveGlobalPaletteTexture
;
456 GLint maxPendingSwapBuffers
;
458 FX_GrContext_t glideContext
;
469 typedef void (*tfxSetupFunc
)(struct vertex_buffer
*, GLuint
, GLuint
);
471 extern GrHwConfiguration glbHWConfig
;
472 extern int glbCurrentBoard
;
474 extern void fxPrintSetupFlags( const char *msg
, GLuint flags
);
475 extern void fxSetupFXUnits(GLcontext
*);
476 extern void fxSetupDDPointers(GLcontext
*);
478 extern void fxDDSetupInit(void);
479 extern void fxDDCvaInit(void);
480 extern void fxDDTrifuncInit(void);
481 extern void fxDDFastPathInit(void);
483 extern void fxDDChooseRenderState( GLcontext
*ctx
);
486 extern tfxSetupFunc
fxDDChooseSetupFunction(GLcontext
*);
488 extern void fxDDRenderInit(GLcontext
*);
490 extern void fxUpdateDDSpanPointers(GLcontext
*);
491 extern void fxSetupDDSpanPointers(GLcontext
*);
493 extern void fxPrintTextureData(tfxTexInfo
*ti
);
494 extern GLboolean
fxDDTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
495 GLenum format
, GLenum type
, const GLvoid
*pixels
,
496 const struct gl_pixelstore_attrib
*packing
,
497 struct gl_texture_object
*texObj
,
498 struct gl_texture_image
*texImage
,
499 GLboolean
*retainInternalCopy
);
500 extern GLboolean
fxDDTexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
501 GLint xoffset
, GLint yoffset
,
502 GLsizei width
, GLsizei height
,
503 GLenum format
, GLenum type
, const GLvoid
*pixels
,
504 const struct gl_pixelstore_attrib
*packing
,
505 struct gl_texture_object
*texObj
,
506 struct gl_texture_image
*texImage
);
507 extern GLvoid
*fxDDGetTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
508 const struct gl_texture_object
*texObj
,
509 GLenum
*formatOut
, GLenum
*typeOut
,
510 GLboolean
*freeImageOut
);
511 extern void fxDDTexEnv(GLcontext
*, GLenum
, GLenum
, const GLfloat
*);
512 extern void fxDDTexParam(GLcontext
*, GLenum
, struct gl_texture_object
*,
513 GLenum
, const GLfloat
*);
514 extern void fxDDTexBind(GLcontext
*, GLenum
, struct gl_texture_object
*);
515 extern void fxDDTexDel(GLcontext
*, struct gl_texture_object
*);
516 extern void fxDDTexPalette(GLcontext
*, struct gl_texture_object
*);
517 extern void fxDDTexUseGlbPalette(GLcontext
*, GLboolean
);
519 extern void fxDDEnable(GLcontext
*, GLenum
, GLboolean
);
520 extern void fxDDAlphaFunc(GLcontext
*, GLenum
, GLclampf
);
521 extern void fxDDBlendFunc(GLcontext
*, GLenum
, GLenum
);
522 extern void fxDDDepthMask(GLcontext
*, GLboolean
);
523 extern void fxDDDepthFunc(GLcontext
*, GLenum
);
525 extern void fxDDRegisterVB( struct vertex_buffer
*VB
);
526 extern void fxDDUnregisterVB( struct vertex_buffer
*VB
);
527 extern void fxDDResizeVB( struct vertex_buffer
*VB
, GLuint size
);
529 extern void fxDDPartialRasterSetup( struct vertex_buffer
*VB
);
531 extern void fxDDDoRasterSetup( struct vertex_buffer
*VB
);
533 extern void fxDDRegisterPipelineStages( GLcontext
*ctx
);
535 extern GLboolean
fxDDBuildPrecalcPipeline( GLcontext
*ctx
);
537 extern void fxDDInitExtensions( GLcontext
*ctx
);
539 #define fxTMGetTexInfo(o) ((tfxTexInfo*)((o)->DriverData))
540 extern void fxTMInit(fxMesaContext ctx
);
541 extern void fxTMClose(fxMesaContext ctx
);
542 extern void fxTMRestoreTextures_NoLock(fxMesaContext ctx
);
543 extern void fxTMMoveInTM(fxMesaContext
, struct gl_texture_object
*, GLint
);
544 extern void fxTMMoveOutTM(fxMesaContext
, struct gl_texture_object
*);
545 #define fxTMMoveOutTM_NoLock fxTMMoveOutTM
546 extern void fxTMFreeTexture(fxMesaContext
, struct gl_texture_object
*);
547 extern void fxTMReloadMipMapLevel(fxMesaContext
, struct gl_texture_object
*, GLint
);
548 extern void fxTMReloadSubMipMapLevel(fxMesaContext
, struct gl_texture_object
*,
549 GLint
, GLint
, GLint
);
551 extern void fxTexGetFormat(GLenum
, GrTextureFormat_t
*, GLint
*);
552 extern int fxTexGetInfo(int, int, GrLOD_t
*, GrAspectRatio_t
*,
553 float *, float *, int *, int *, int *, int *);
555 extern void fxDDScissor( GLcontext
*ctx
,
556 GLint x
, GLint y
, GLsizei w
, GLsizei h
);
557 extern void fxDDFogfv( GLcontext
*ctx
, GLenum pname
, const GLfloat
*params
);
558 extern void fxDDColorMask(GLcontext
*ctx
,
559 GLboolean r
, GLboolean g
,
560 GLboolean b
, GLboolean a
);
562 extern void fxDDWriteDepthSpan(GLcontext
*ctx
, GLuint n
, GLint x
, GLint y
,
563 const GLdepth depth
[], const GLubyte mask
[]);
565 extern void fxDDReadDepthSpan(GLcontext
*ctx
, GLuint n
, GLint x
, GLint y
,
568 extern void fxDDWriteDepthPixels(GLcontext
*ctx
, GLuint n
,
569 const GLint x
[], const GLint y
[],
570 const GLdepth depth
[], const GLubyte mask
[]);
572 extern void fxDDReadDepthPixels(GLcontext
*ctx
, GLuint n
,
573 const GLint x
[], const GLint y
[],
576 extern void fxDDFastPath( struct vertex_buffer
*VB
);
578 extern void fxDDShadeModel(GLcontext
*ctx
, GLenum mode
);
580 extern void fxDDCullFace(GLcontext
*ctx
, GLenum mode
);
581 extern void fxDDFrontFace(GLcontext
*ctx
, GLenum mode
);
583 extern void fxPrintRenderState( const char *msg
, GLuint state
);
584 extern void fxPrintHintState( const char *msg
, GLuint state
);
586 extern void fxDDDoRenderVB( struct vertex_buffer
*VB
);
588 extern int fxDDInitFxMesaContext( fxMesaContext fxMesa
);
591 extern void fxSetScissorValues(GLcontext
*ctx
);
592 extern void fxTMMoveInTM_NoLock(fxMesaContext fxMesa
,
593 struct gl_texture_object
*tObj
,
595 extern void fxInitPixelTables(fxMesaContext fxMesa
, GLboolean bgrOrder
);