src/mesa/drivers/dri/r300/radeon_context.h

   1 /*
   2 Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
   3
   4 The Weather Channel (TM) funded Tungsten Graphics to develop the
   5 initial release of the Radeon 8500 driver under the XFree86 license.
   6 This notice must be preserved.
   7
   8 Permission is hereby granted, free of charge, to any person obtaining
   9 a copy of this software and associated documentation files (the
  10 "Software"), to deal in the Software without restriction, including
  11 without limitation the rights to use, copy, modify, merge, publish,
  12 distribute, sublicense, and/or sell copies of the Software, and to
  13 permit persons to whom the Software is furnished to do so, subject to
  14 the following conditions:
  15
  16 The above copyright notice and this permission notice (including the
  17 next paragraph) shall be included in all copies or substantial
  18 portions of the Software.
  19
  20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  23 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  24 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27
  28 **************************************************************************/
  29
  30 /*
  31  * Authors:
  32  *   Keith Whitwell <keith@tungstengraphics.com>
  33  *   Nicolai Haehnle <prefect_@gmx.net>
  34  */
  35
  36 #ifndef __RADEON_CONTEXT_H__
  37 #define __RADEON_CONTEXT_H__
  38
  39 #include "mtypes.h"
  40 #include "radeon_screen.h"
  41 #include "drm.h"
  42 #include "dri_util.h"
  43
  44 struct radeon_context;
  45 typedef struct radeon_context radeonContextRec;
  46 typedef struct radeon_context* radeonContextPtr;
  47
  48 static __inline GLuint radeonPackColor(GLuint cpp,
  49                                      GLubyte r, GLubyte g, GLubyte b, GLubyte a)
  50 {
  51         switch (cpp) {
  52         case 2:
  53                 return PACK_COLOR_565(r, g, b);
  54         case 4:
  55                 return PACK_COLOR_8888(a, r, g, b);
  56         default:
  57                 return 0;
  58         }
  59 }
  60
  61
  62 /* Rasterizing fallbacks */
  63 /* See correponding strings in r200_swtcl.c */
  64 #define RADEON_FALLBACK_TEXTURE         0x01
  65 #define RADEON_FALLBACK_DRAW_BUFFER     0x02
  66 #define RADEON_FALLBACK_STENCIL         0x04
  67 #define RADEON_FALLBACK_RENDER_MODE     0x08
  68 #define RADEON_FALLBACK_BLEND_EQ        0x10
  69 #define RADEON_FALLBACK_BLEND_FUNC      0x20
  70 #define RADEON_FALLBACK_DISABLE         0x40
  71 #define RADEON_FALLBACK_BORDER_MODE     0x80
  72
  73 extern void radeonFallback(GLcontext * ctx, GLuint bit, GLboolean mode);
  74
  75 #define FALLBACK( radeon, bit, mode ) do {                      \
  76    if ( 0 ) fprintf( stderr, "FALLBACK in %s: #%d=%d\n",        \
  77                      __FUNCTION__, bit, mode );                 \
  78    radeonFallback( (radeon)->glCtx, bit, mode );                \
  79 } while (0)
  80
  81
  82 /* TCL fallbacks */
  83 extern void radeonTclFallback(GLcontext * ctx, GLuint bit, GLboolean mode);
  84
  85 #define RADEON_TCL_FALLBACK_RASTER              0x0001  /* rasterization */
  86 #define RADEON_TCL_FALLBACK_UNFILLED            0x0002  /* unfilled tris */
  87 #define RADEON_TCL_FALLBACK_LIGHT_TWOSIDE       0x0004  /* twoside tris */
  88 #define RADEON_TCL_FALLBACK_MATERIAL            0x0008  /* material in vb */
  89 #define RADEON_TCL_FALLBACK_TEXGEN_0            0x0010  /* texgen, unit 0 */
  90 #define RADEON_TCL_FALLBACK_TEXGEN_1            0x0020  /* texgen, unit 1 */
  91 #define RADEON_TCL_FALLBACK_TEXGEN_2            0x0040  /* texgen, unit 2 */
  92 #define RADEON_TCL_FALLBACK_TEXGEN_3            0x0080  /* texgen, unit 3 */
  93 #define RADEON_TCL_FALLBACK_TEXGEN_4            0x0100  /* texgen, unit 4 */
  94 #define RADEON_TCL_FALLBACK_TEXGEN_5            0x0200  /* texgen, unit 5 */
  95 #define RADEON_TCL_FALLBACK_TCL_DISABLE         0x0400  /* user disable */
  96 #define RADEON_TCL_FALLBACK_BITMAP              0x0800  /* draw bitmap with points */
  97 #define RADEON_TCL_FALLBACK_VERTEX_PROGRAM      0x1000  /* vertex program active */
  98
  99 #define TCL_FALLBACK( ctx, bit, mode )  radeonTclFallback( ctx, bit, mode )
 100
 101
 102 struct radeon_dri_mirror {
 103         __DRIcontextPrivate *context;   /* DRI context */
 104         __DRIscreenPrivate *screen;     /* DRI screen */
 105         __DRIdrawablePrivate *drawable; /* DRI drawable bound to this ctx */
 106
 107         drm_context_t hwContext;
 108         drm_hw_lock_t *hwLock;
 109         int fd;
 110         int drmMinor;
 111 };
 112
 113 /**
 114  * Derived state for internal purposes.
 115  */
 116 struct radeon_scissor_state {
 117         drm_clip_rect_t rect;
 118         GLboolean enabled;
 119
 120         GLuint numClipRects;    /* Cliprects active */
 121         GLuint numAllocedClipRects;     /* Cliprects available */
 122         drm_clip_rect_t *pClipRects;
 123 };
 124
 125 struct radeon_colorbuffer_state {
 126         GLuint clear;
 127         GLint drawOffset, drawPitch;
 128 };
 129
 130 struct radeon_pixel_state {
 131         GLint readOffset, readPitch;
 132 };
 133
 134 struct radeon_state {
 135         struct radeon_colorbuffer_state color;
 136         struct radeon_pixel_state pixel;
 137         struct radeon_scissor_state scissor;
 138 };
 139
 140 /**
 141  * Common per-context variables shared by R200 and R300.
 142  * R200- and R300-specific code "derive" their own context from this
 143  * structure.
 144  */
 145 struct radeon_context {
 146         GLcontext *glCtx;               /* Mesa context */
 147         radeonScreenPtr radeonScreen;   /* Screen private DRI data */
 148
 149         /* Fallback state */
 150         GLuint Fallback;
 151         GLuint TclFallback;
 152
 153         /* Page flipping */
 154         GLuint doPageFlip;
 155
 156         /* Drawable, cliprect and scissor information */
 157         GLuint numClipRects;    /* Cliprects for the draw buffer */
 158         drm_clip_rect_t *pClipRects;
 159         unsigned int lastStamp;
 160         GLboolean lost_context;
 161         drm_radeon_sarea_t *sarea;      /* Private SAREA data */
 162
 163         /* Mirrors of some DRI state */
 164         struct radeon_dri_mirror dri;
 165
 166         /* Busy waiting */
 167         GLuint do_usleeps;
 168         GLuint do_irqs;
 169         GLuint irqsEmitted;
 170         drm_radeon_irq_wait_t iw;
 171
 172         /* VBI / buffer swap */
 173         GLuint vbl_seq;
 174         GLuint vblank_flags;
 175
 176         int64_t swap_ust;
 177         int64_t swap_missed_ust;
 178
 179         GLuint swap_count;
 180         GLuint swap_missed_count;
 181
 182         PFNGLXGETUSTPROC get_ust;
 183
 184         /* Derived state */
 185         struct radeon_state state;
 186
 187         /* Configuration cache
 188          */
 189         driOptionCache optionCache;
 190 };
 191
 192 #define RADEON_CONTEXT(glctx) ((radeonContextPtr)(ctx->DriverCtx))
 193
 194 extern void radeonSwapBuffers(__DRIdrawablePrivate * dPriv);
 195 extern GLboolean radeonInitContext(radeonContextPtr radeon,
 196                                    struct dd_function_table* functions,
 197                                    const __GLcontextModes * glVisual,
 198                                    __DRIcontextPrivate * driContextPriv,
 199                                    void *sharedContextPrivate);
 200 extern void radeonCleanupContext(radeonContextPtr radeon);
 201 extern GLboolean radeonMakeCurrent(__DRIcontextPrivate * driContextPriv,
 202                                    __DRIdrawablePrivate * driDrawPriv,
 203                                    __DRIdrawablePrivate * driReadPriv);
 204 extern GLboolean radeonUnbindContext(__DRIcontextPrivate * driContextPriv);
 205
 206 /* ================================================================
 207  * Debugging:
 208  */
 209 #define DO_DEBUG                1
 210
 211 #if DO_DEBUG
 212 extern int RADEON_DEBUG;
 213 #else
 214 #define RADEON_DEBUG            0
 215 #endif
 216
 217 #define DEBUG_TEXTURE   0x0001
 218 #define DEBUG_STATE     0x0002
 219 #define DEBUG_IOCTL     0x0004
 220 #define DEBUG_PRIMS     0x0008
 221 #define DEBUG_VERTS     0x0010
 222 #define DEBUG_FALLBACKS 0x0020
 223 #define DEBUG_VFMT      0x0040
 224 #define DEBUG_CODEGEN   0x0080
 225 #define DEBUG_VERBOSE   0x0100
 226 #define DEBUG_DRI       0x0200
 227 #define DEBUG_DMA       0x0400
 228 #define DEBUG_SANITY    0x0800
 229 #define DEBUG_SYNC      0x1000
 230 #define DEBUG_PIXEL     0x2000
 231 #define DEBUG_MEMORY    0x4000
 232
 233 #endif /* __RADEON_CONTEXT_H__ */