2 * GLX Hardware Device Driver for Intel i810
3 * Copyright (C) 1999 Keith Whitwell
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
21 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 #ifndef I810CONTEXT_INC
26 #define I810CONTEXT_INC
28 typedef struct i810_context_t i810Context;
29 typedef struct i810_context_t *i810ContextPtr;
30 typedef struct i810_texture_object_t *i810TextureObjectPtr;
33 #include "main/mtypes.h"
36 #include "i810screen.h"
40 /* Reasons to disable hardware rasterization.
42 #define I810_FALLBACK_TEXTURE 0x1
43 #define I810_FALLBACK_DRAW_BUFFER 0x2
44 #define I810_FALLBACK_READ_BUFFER 0x4
45 #define I810_FALLBACK_COLORMASK 0x8
46 #define I810_FALLBACK_SPECULAR 0x20
47 #define I810_FALLBACK_LOGICOP 0x40
48 #define I810_FALLBACK_RENDERMODE 0x80
49 #define I810_FALLBACK_STENCIL 0x100
50 #define I810_FALLBACK_BLEND_EQ 0x200
51 #define I810_FALLBACK_BLEND_FUNC 0x400
55 #define PCI_CHIP_I810 0x7121
56 #define PCI_CHIP_I810_DC100 0x7123
57 #define PCI_CHIP_I810_E 0x7125
58 #define PCI_CHIP_I815 0x1132
61 #define IS_I810(imesa) (imesa->i810Screen->deviceID == PCI_CHIP_I810 || \
62 imesa->i810Screen->deviceID == PCI_CHIP_I810_DC100 || \
63 imesa->i810Screen->deviceID == PCI_CHIP_I810_E)
64 #define IS_I815(imesa) (imesa->i810Screen->deviceID == PCI_CHIP_I815)
67 #define I810_UPLOAD_TEX(i) (I810_UPLOAD_TEX0<<(i))
69 /* Use the templated vertex formats:
71 #define TAG(x) i810##x
72 #include "tnl_dd/t_dd_vertex.h"
75 typedef void (*i810_tri_func)( i810ContextPtr, i810Vertex *, i810Vertex *,
77 typedef void (*i810_line_func)( i810ContextPtr, i810Vertex *, i810Vertex * );
78 typedef void (*i810_point_func)( i810ContextPtr, i810Vertex * );
80 struct i810_context_t {
82 struct gl_context *glCtx;
84 /* Texture object bookkeeping
87 driTexHeap * texture_heaps[1];
88 driTextureObject swapped;
90 struct i810_texture_object_t *CurrentTexObj[2];
93 /* Bit flag to keep track of fallbacks.
97 /* State for i810vb.c and i810tris.c.
99 GLuint new_state; /* _NEW_* flags */
100 GLuint SetupNewInputs;
103 GLmatrix ViewportMatrix;
104 GLenum render_primitive;
105 GLenum reduced_primitive;
109 drmBufPtr vertex_buffer;
113 GLuint vertex_last_prim;
115 GLboolean upload_cliprects;
118 /* Fallback rasterization functions
120 i810_point_func draw_point;
121 i810_line_func draw_line;
122 i810_tri_func draw_tri;
126 GLuint dirty; /* I810_UPLOAD_* */
127 GLuint Setup[I810_CTX_SETUP_SIZE];
128 GLuint BufferSetup[I810_DEST_SETUP_SIZE];
130 int vertex_stride_shift;
131 unsigned int lastStamp;
132 GLboolean stipple_in_hw;
134 GLenum TexEnvImageFmt[2];
136 /* State which can't be computed completely on the fly:
142 /* Funny mesa mirrors
149 struct gl_framebuffer *glBuffer;
150 GLboolean doPageFlip;
152 /* These refer to the current draw (front vs. back) buffer:
154 int drawX; /* origin of drawable in draw buffer */
156 GLuint numClipRects; /* cliprects for that buffer */
157 drm_clip_rect_t *pClipRects;
166 drm_clip_rect_t draw_rect;
167 drm_clip_rect_t scissor_rect;
169 drm_context_t hHWContext;
170 drm_hw_lock_t *driHwLock;
173 __DRIdrawable *driDrawable;
174 __DRIscreen *driScreen;
175 i810ScreenPrivate *i810Screen;
180 #define I810_CONTEXT(ctx) ((i810ContextPtr)(ctx->DriverCtx))
182 #define GET_DISPATCH_AGE( imesa ) imesa->sarea->last_dispatch
183 #define GET_ENQUEUE_AGE( imesa ) imesa->sarea->last_enqueue
186 /* Lock the hardware and validate our state.
188 #define LOCK_HARDWARE( imesa ) \
191 DRM_CAS(imesa->driHwLock, imesa->hHWContext, \
192 (DRM_LOCK_HELD|imesa->hHWContext), __ret); \
194 i810GetLock( imesa, 0 ); \
199 /* Release the kernel lock.
201 #define UNLOCK_HARDWARE(imesa) \
202 DRM_UNLOCK(imesa->driFd, imesa->driHwLock, imesa->hHWContext);
205 /* This is the wrong way to do it, I'm sure. Otherwise the drm
206 * bitches that I've already got the heavyweight lock. At worst,
207 * this is 3 ioctls. The best solution probably only gets me down
208 * to 2 ioctls in the worst case.
210 #define LOCK_HARDWARE_QUIESCENT( imesa ) do { \
211 LOCK_HARDWARE( imesa ); \
212 i810RegetLockQuiescent( imesa ); \
216 extern void i810GetLock( i810ContextPtr imesa, GLuint flags );
217 extern void i810EmitHwStateLocked( i810ContextPtr imesa );
218 extern void i810EmitScissorValues( i810ContextPtr imesa, int box_nr, int emit );
219 extern void i810EmitDrawingRectangle( i810ContextPtr imesa );
220 extern void i810XMesaSetBackClipRects( i810ContextPtr imesa );
221 extern void i810XMesaSetFrontClipRects( i810ContextPtr imesa );
223 #define SUBPIXEL_X -.5
224 #define SUBPIXEL_Y -.5
226 /* ================================================================
231 extern int I810_DEBUG;
236 #define DEBUG_TEXTURE 0x1
237 #define DEBUG_STATE 0x2
238 #define DEBUG_IOCTL 0x4
239 #define DEBUG_PRIMS 0x8
240 #define DEBUG_VERTS 0x10
241 #define DEBUG_FALLBACKS 0x20
242 #define DEBUG_VERBOSE 0x40
243 #define DEBUG_DRI 0x80
244 #define DEBUG_DMA 0x100
245 #define DEBUG_SANITY 0x200
246 #define DEBUG_SYNC 0x400
247 #define DEBUG_SLEEP 0x800