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/*
* GLX Hardware Device Driver for Intel i830
* Copyright (C) 1999 Keith Whitwell
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
/* Adapted for use in the I830M driver:
* Jeff Hartmann <jhartmann@2d3d.com>
*/
/* $XFree86: xc/lib/GL/mesa/src/drv/i830/i830_context.h,v 1.7 2003/02/06 04:18:01 dawes Exp $ */
#ifndef I830CONTEXT_INC
#define I830CONTEXT_INC
typedef struct i830_context_t i830Context;
typedef struct i830_context_t *i830ContextPtr;
typedef struct i830_texture_object_t *i830TextureObjectPtr;
#include "mtypes.h"
#include "drm.h"
#include "mm.h"
#include "tnl/t_vertex.h"
#include "i830_screen.h"
#include "i830_tex.h"
#define TAG(x) i830##x
#include "tnl_dd/t_dd_vertex.h"
#undef TAG
#define DV_PF_555 (1<<8)
#define DV_PF_565 (2<<8)
#define DV_PF_8888 (3<<8)
#define I830_TEX_MAXLEVELS 10
#define I830_CONTEXT(ctx) ((i830ContextPtr)(ctx->DriverCtx))
#define GET_DISPATCH_AGE(imesa) imesa->sarea->last_dispatch
#define GET_ENQUEUE_AGE(imesa) imesa->sarea->last_enqueue
typedef void (*i830_tri_func)(i830ContextPtr, i830Vertex *, i830Vertex *,
i830Vertex *);
typedef void (*i830_line_func)(i830ContextPtr, i830Vertex *, i830Vertex *);
typedef void (*i830_point_func)(i830ContextPtr, i830Vertex *);
#define I830_FALLBACK_TEXTURE 0x1
#define I830_FALLBACK_DRAW_BUFFER 0x2
#define I830_FALLBACK_READ_BUFFER 0x4
#define I830_FALLBACK_COLORMASK 0x8
#define I830_FALLBACK_RENDERMODE 0x10
#define I830_FALLBACK_STENCIL 0x20
#define I830_FALLBACK_STIPPLE 0x40
#define I830_FALLBACK_USER 0x80
struct i830_context_t
{
GLint refcount;
GLcontext *glCtx;
/*From I830 stuff*/
int TextureMode;
GLuint renderindex;
GLuint TexBlendWordsUsed[I830_TEXBLEND_COUNT];
GLuint TexBlend[I830_TEXBLEND_COUNT][I830_TEXBLEND_SIZE];
GLuint Init_TexBlend[I830_TEXBLEND_COUNT][I830_TEXBLEND_SIZE];
GLuint Init_TexBlendWordsUsed[I830_TEXBLEND_COUNT];
GLuint Init_TexBlendColorPipeNum[I830_TEXBLEND_COUNT];
GLuint TexBlendColorPipeNum[I830_TEXBLEND_COUNT];
GLuint Init_BufferSetup[I830_DEST_SETUP_SIZE];
GLuint LodBias[2];
GLenum palette_format;
GLuint palette[256];
GLuint Init_Setup[I830_CTX_SETUP_SIZE];
GLuint vertex_prim;
drmBufPtr vertex_dma_buffer;
GLboolean mask_red;
GLboolean mask_green;
GLboolean mask_blue;
GLboolean mask_alpha;
GLubyte clear_red;
GLubyte clear_green;
GLubyte clear_blue;
GLubyte clear_alpha;
GLfloat depth_scale;
int depth_clear_mask;
int stencil_clear_mask;
int ClearDepth;
int hw_stencil;
GLuint MonoColor;
GLuint LastTexEnabled;
GLuint TexEnabledMask;
/* Texture object bookkeeping
*/
unsigned nr_heaps;
driTexHeap * texture_heaps[1];
driTextureObject swapped;
struct i830_texture_object_t *CurrentTexObj[2];
/* Rasterization and vertex state:
*/
GLuint Fallback;
GLuint NewGLState;
/* Vertex state
*/
GLuint vertex_size;
struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
GLuint vertex_attr_count;
char *verts; /* points to tnl->clipspace.vertex_buf */
/* State for i830tris.c.
*/
GLuint RenderIndex;
GLmatrix ViewportMatrix;
GLenum render_primitive;
GLenum reduced_primitive;
GLuint hw_primitive;
drmBufPtr vertex_buffer;
char *vertex_addr;
GLuint vertex_low;
GLuint vertex_high;
GLuint vertex_last_prim;
GLboolean upload_cliprects;
/* Fallback rasterization functions
*/
i830_point_func draw_point;
i830_line_func draw_line;
i830_tri_func draw_tri;
/* Hardware state
*/
GLuint dirty; /* I810_UPLOAD_* */
GLuint Setup[I830_CTX_SETUP_SIZE];
GLuint BufferSetup[I830_DEST_SETUP_SIZE];
GLuint StippleSetup[I830_STP_SETUP_SIZE];
unsigned int lastStamp;
GLboolean hw_stipple;
GLenum TexEnvImageFmt[2];
/* State which can't be computed completely on the fly:
*/
GLuint LcsCullMode;
GLuint LcsLineWidth;
GLuint LcsPointSize;
/* Funny mesa mirrors
*/
GLuint ClearColor;
/* DRI stuff
*/
GLuint needClip;
GLframebuffer *glBuffer;
/* These refer to the current draw (front vs. back) buffer:
*/
char *drawMap; /* draw buffer address in virtual mem */
char *readMap;
int drawX; /* origin of drawable in draw buffer */
int drawY;
GLuint numClipRects; /* cliprects for that buffer */
drm_clip_rect_t *pClipRects;
int lastSwap;
int texAge;
int ctxAge;
int dirtyAge;
int perf_boxes;
int do_irqs;
GLboolean scissor;
drm_clip_rect_t draw_rect;
drm_clip_rect_t scissor_rect;
drmContext hHWContext;
drm_hw_lock_t *driHwLock;
int driFd;
__DRIdrawablePrivate *driDrawable;
__DRIscreenPrivate *driScreen;
i830ScreenPrivate *i830Screen;
I830SAREAPtr sarea;
};
#define I830_TEX_UNIT_ENABLED(unit) (1<<unit)
#define VALID_I830_TEXTURE_OBJECT(tobj) (tobj)
#define I830_CONTEXT(ctx) ((i830ContextPtr)(ctx->DriverCtx))
#define I830_DRIVER_DATA(vb) ((i830VertexBufferPtr)((vb)->driver_data))
#define GET_DISPATCH_AGE(imesa) imesa->sarea->last_dispatch
#define GET_ENQUEUE_AGE(imesa) imesa->sarea->last_enqueue
/* Lock the hardware and validate our state.
*/
#define LOCK_HARDWARE( imesa ) \
do { \
char __ret=0; \
DRM_CAS(imesa->driHwLock, imesa->hHWContext, \
(DRM_LOCK_HELD|imesa->hHWContext), __ret); \
if (__ret) \
i830GetLock( imesa, 0 ); \
}while (0)
/* Unlock the hardware using the global current context
*/
#define UNLOCK_HARDWARE(imesa) \
do { \
imesa->perf_boxes |= imesa->sarea->perf_boxes; \
DRM_UNLOCK(imesa->driFd, imesa->driHwLock, imesa->hHWContext); \
} while (0)
/* This is the wrong way to do it, I'm sure. Otherwise the drm
* bitches that I've already got the heavyweight lock. At worst,
* this is 3 ioctls. The best solution probably only gets me down
* to 2 ioctls in the worst case.
*/
#define LOCK_HARDWARE_QUIESCENT( imesa ) do { \
LOCK_HARDWARE( imesa ); \
i830RegetLockQuiescent( imesa ); \
} while(0)
extern void i830GetLock(i830ContextPtr imesa, GLuint flags);
extern void i830EmitHwStateLocked(i830ContextPtr imesa);
extern void i830EmitDrawingRectangle(i830ContextPtr imesa);
extern void i830XMesaSetBackClipRects(i830ContextPtr imesa);
extern void i830XMesaSetFrontClipRects(i830ContextPtr imesa);
extern void i830DDExtensionsInit(GLcontext *ctx);
extern void i830DDInitDriverFuncs(GLcontext *ctx);
extern void i830DDUpdateHwState(GLcontext *ctx);
#define SUBPIXEL_X 0.125
#define SUBPIXEL_Y 0.125
/* ================================================================
* Debugging:
*/
#define DO_DEBUG 1
#if DO_DEBUG
extern int I830_DEBUG;
#else
#define I830_DEBUG 0
#endif
#define DEBUG_TEXTURE 0x1
#define DEBUG_STATE 0x2
#define DEBUG_IOCTL 0x4
#define DEBUG_PRIMS 0x8
#define DEBUG_VERTS 0x10
#define DEBUG_FALLBACKS 0x20
#define DEBUG_VERBOSE 0x40
#define DEBUG_DRI 0x80
#define DEBUG_DMA 0x100
#define DEBUG_SANITY 0x200
#define DEBUG_SYNC 0x400
#define DEBUG_SLEEP 0x800
#define PCI_CHIP_845_G 0x2562
#define PCI_CHIP_I830_M 0x3577
#define PCI_CHIP_I855_GM 0x3582
#define PCI_CHIP_I865_G 0x2572
#endif
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