1 /* -*- mode: c; c-basic-offset: 3 -*- */
3 * Copyright 2000 Gareth Hughes
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * GARETH HUGHES BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
21 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 * Gareth Hughes <gareth@valinux.com>
28 * Leif Delgass <ldelgass@retinalburn.net>
29 * Jos�Fonseca <j_r_fonseca@yahoo.co.uk>
32 #ifndef __MACH64_CONTEXT_H__
33 #define __MACH64_CONTEXT_H__
37 #include "mach64_drm.h"
41 #include "mach64_reg.h"
45 struct mach64_context
;
46 typedef struct mach64_context mach64ContextRec
;
47 typedef struct mach64_context
*mach64ContextPtr
;
49 #include "mach64_lock.h"
50 #include "mach64_screen.h"
52 /* Experimental driver options */
53 #define MACH64_CLIENT_STATE_EMITS 0
55 /* Performace monitoring */
56 #define ENABLE_PERF_BOXES 1
58 /* Native vertex format */
59 #define MACH64_NATIVE_VTXFMT 1
61 /* Flags for what context state needs to be updated:
63 #define MACH64_NEW_ALPHA 0x0001
64 #define MACH64_NEW_DEPTH 0x0002
65 #define MACH64_NEW_FOG 0x0004
66 #define MACH64_NEW_CLIP 0x0008
67 #define MACH64_NEW_CULL 0x0010
68 #define MACH64_NEW_MASKS 0x0020
69 #define MACH64_NEW_RENDER_UNUSED 0x0040
70 #define MACH64_NEW_WINDOW 0x0080
71 #define MACH64_NEW_TEXTURE 0x0100
72 #define MACH64_NEW_CONTEXT 0x0200
73 #define MACH64_NEW_ALL 0x03ff
75 /* Flags for software fallback cases:
77 #define MACH64_FALLBACK_TEXTURE 0x0001
78 #define MACH64_FALLBACK_DRAW_BUFFER 0x0002
79 #define MACH64_FALLBACK_READ_BUFFER 0x0004
80 #define MACH64_FALLBACK_STENCIL 0x0008
81 #define MACH64_FALLBACK_RENDER_MODE 0x0010
82 #define MACH64_FALLBACK_LOGICOP 0x0020
83 #define MACH64_FALLBACK_SEP_SPECULAR 0x0040
84 #define MACH64_FALLBACK_BLEND_EQ 0x0080
85 #define MACH64_FALLBACK_BLEND_FUNC 0x0100
86 #define MACH64_FALLBACK_DISABLE 0x0200
88 #define CARD32 GLuint /* KW: For building in mesa tree */
90 #if MACH64_NATIVE_VTXFMT
92 /* The vertex structures.
95 /* The size of this union is not of relevence:
97 union mach64_vertex_t
{
104 typedef union mach64_vertex_t mach64Vertex
, *mach64VertexPtr
;
108 /* Use the templated vertex format:
110 #define TAG(x) mach64##x
111 #include "tnl_dd/t_dd_vertex.h"
114 #endif /* MACH64_NATIVE_VTXFMT */
116 /* Subpixel offsets for window coordinates:
117 * These are enough to fix most glean tests except polygonOffset.
118 * There are also still some gaps that show in e.g. the tunnel Mesa demo
119 * or the lament xscreensaver hack.
121 #define SUBPIXEL_X (0.0125F)
122 #define SUBPIXEL_Y (0.15F)
125 typedef void (*mach64_tri_func
)( mach64ContextPtr
,
130 typedef void (*mach64_line_func
)( mach64ContextPtr
,
134 typedef void (*mach64_point_func
)( mach64ContextPtr
,
137 struct mach64_texture_object
{
138 driTextureObject base
;
142 GLint heap
; /* same as base.heap->heapId */
144 /* For communicating values from mach64AllocTexObj(), mach64SetTexImages()
145 * to mach64UpdateTextureUnit(). Alternately, we can use the tObj values or
146 * set the context registers directly.
155 GLboolean BilinearMin
;
156 GLboolean BilinearMag
;
161 typedef struct mach64_texture_object mach64TexObj
, *mach64TexObjPtr
;
163 struct mach64_context
{
166 /* Driver and hardware state management
169 GLuint dirty
; /* Hardware state to be updated */
170 drm_mach64_context_regs_t setup
;
175 GLuint SetupNewInputs
;
177 GLfloat hw_viewport
[16];
180 GLuint vertex_stride_shift
;
181 GLuint vertex_format
;
185 CARD32 Color
; /* Current draw color */
186 CARD32 ClearColor
; /* Color used to clear color buffer */
187 CARD32 ClearDepth
; /* Value used to clear depth buffer */
189 /* Map GL texture units onto hardware
195 /* Texture object bookkeeping
197 mach64TexObjPtr CurrentTexObj
[2];
199 GLint firstTexHeap
, lastTexHeap
;
200 driTexHeap
*texture_heaps
[MACH64_NR_TEX_HEAPS
];
201 driTextureObject swapped
;
203 /* Fallback rasterization functions
205 mach64_point_func draw_point
;
206 mach64_line_func draw_line
;
207 mach64_tri_func draw_tri
;
210 GLfloat backface_sign
;
219 GLenum render_primitive
;
221 /* Visual, drawable, cliprect and scissor information
223 GLint drawOffset
, drawPitch
;
224 GLint drawX
, drawY
; /* origin of drawable in draw buffer */
225 GLint readOffset
, readPitch
;
227 GLuint numClipRects
; /* Cliprects for the draw buffer */
228 drm_clip_rect_t
*pClipRects
;
231 drm_clip_rect_t ScissorRect
; /* Current software scissor */
233 /* Mirrors of some DRI state
235 __DRIcontextPrivate
*driContext
; /* DRI context */
236 __DRIscreenPrivate
*driScreen
; /* DRI screen */
237 __DRIdrawablePrivate
*driDrawable
; /* DRI drawable bound to this ctx */
239 unsigned int lastStamp
; /* mirror driDrawable->lastStamp */
241 drm_context_t hHWContext
;
242 drm_hw_lock_t
*driHwLock
;
245 mach64ScreenPtr mach64Screen
; /* Screen private DRI data */
246 drm_mach64_sarea_t
*sarea
; /* Private SAREA data */
248 GLuint hardwareWentIdle
;
250 #if ENABLE_PERF_BOXES
251 /* Performance counters
253 GLuint boxes
; /* Draw performance boxes */
256 GLuint c_textureSwaps
;
257 GLuint c_textureBytes
;
258 GLuint c_agpTextureBytes
;
260 GLuint c_texsrc_card
;
261 GLuint c_vertexBuffers
;
270 /* Configuration cache
272 driOptionCache optionCache
;
275 #define MACH64_CONTEXT(ctx) ((mach64ContextPtr)(ctx->DriverCtx))
278 extern GLboolean
mach64CreateContext( const __GLcontextModes
*glVisual
,
279 __DRIcontextPrivate
*driContextPriv
,
280 void *sharedContextPrivate
);
282 extern void mach64DestroyContext( __DRIcontextPrivate
* );
284 extern GLboolean
mach64MakeCurrent( __DRIcontextPrivate
*driContextPriv
,
285 __DRIdrawablePrivate
*driDrawPriv
,
286 __DRIdrawablePrivate
*driReadPriv
);
288 extern GLboolean
mach64UnbindContext( __DRIcontextPrivate
*driContextPriv
);
290 /* ================================================================
293 #if MESA_LITTLE_ENDIAN == 1
294 #define LE32_IN( x ) ( *(GLuint *)(x) )
295 #define LE32_IN_FLOAT( x ) ( *(GLfloat *)(x) )
296 #define LE32_OUT( x, y ) do { *(GLuint *)(x) = (y); } while (0)
297 #define LE32_OUT_FLOAT( x, y ) do { *(GLfloat *)(x) = (y); } while (0)
299 #include <byteswap.h>
300 #define LE32_IN( x ) bswap_32( *(GLuint *)(x) )
301 #define LE32_IN_FLOAT( x ) \
303 GLuint __tmp = bswap_32( *(GLuint *)(x) ); \
304 *(GLfloat *)&__tmp; \
306 #define LE32_OUT( x, y ) do { *(GLuint *)(x) = bswap_32( y ); } while (0)
307 #define LE32_OUT_FLOAT( x, y ) \
310 *(GLfloat *)&__tmp = (y); \
311 *(GLuint *)(x) = bswap_32( __tmp ); \
315 /* ================================================================
319 #define DMALOCALS CARD32 *buf=NULL; int requested=0; int outcount=0
321 /* called while locked for interleaved client-side state emits */
322 #define DMAGETPTR( dwords ) \
324 requested = (dwords); \
325 buf = (CARD32 *)mach64AllocDmaLocked( mmesa, ((dwords)*4) ); \
329 #define DMAOUTREG( reg, val ) \
331 LE32_OUT( &buf[outcount++], ADRINDEX( reg ) ); \
332 LE32_OUT( &buf[outcount++], ( val ) ); \
335 #define DMAADVANCE() \
337 if (outcount < requested) { \
338 mmesa->vert_used -= (requested - outcount) * 4; \
342 /* ================================================================
349 extern int MACH64_DEBUG
;
351 #define MACH64_DEBUG 0
354 #define DEBUG_ALWAYS_SYNC 0x001
355 #define DEBUG_VERBOSE_API 0x002
356 #define DEBUG_VERBOSE_MSG 0x004
357 #define DEBUG_VERBOSE_LRU 0x008
358 #define DEBUG_VERBOSE_DRI 0x010
359 #define DEBUG_VERBOSE_IOCTL 0x020
360 #define DEBUG_VERBOSE_PRIMS 0x040
361 #define DEBUG_VERBOSE_COUNT 0x080
362 #define DEBUG_NOWAIT 0x100
363 #define DEBUG_VERBOSE_FALLBACK 0x200
364 #endif /* __MACH64_CONTEXT_H__ */