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/*
* GLX Hardware Device Driver for Matrox Millenium G200
* Copyright (C) 1999 Wittawat Yamwong
*
* 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
* WITTAWAT YAMWONG, 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.
*
*
* Wittawat Yamwong <Wittawat.Yamwong@stud.uni-hannover.de>
*/
#ifndef MGALIB_INC
#define MGALIB_INC
#include <X11/Xlibint.h>
#include "dri_tmm.h"
#include "dri_mesaint.h"
#include "dri_mesa.h"
#include "xmesaP.h"
#include "types.h"
#include "mgacommon.h"
#include "mm.h"
#include "mgalog.h"
#include "mgaioctl.h"
#include "mgatex.h"
#include "mgavb.h"
#include "mga_drm_public.h"
#include "mga_xmesa.h"
#define MGA_SET_FIELD(reg,mask,val) reg = ((reg) & (mask)) | ((val) & ~(mask))
#define MGA_FIELD(field,val) (((val) << (field ## _SHIFT)) & ~(field ## _MASK))
#define MGA_GET_FIELD(field, val) ((val & ~(field ## _MASK)) >> (field ## _SHIFT))
#define MGA_CHIP_MGAG200 0
#define MGA_CHIP_MGAG400 1
#define MGA_IS_G200(mmesa) (mmesa->mgaScreen->chipset == MGA_CHIP_MGAG200)
#define MGA_IS_G400(mmesa) (mmesa->mgaScreen->chipset == MGA_CHIP_MGAG400)
/* SoftwareFallback
* - texture env GL_BLEND -- can be fixed
* - 1D and 3D textures
* - incomplete textures
*/
#define MGA_FALLBACK_TEXTURE 0x1
#define MGA_FALLBACK_BUFFER 0x2
/* For mgaCtx->new_state.
*/
#define MGA_NEW_DEPTH 0x1
#define MGA_NEW_ALPHA 0x2
#define MGA_NEW_FOG 0x4
#define MGA_NEW_CLIP 0x8
#define MGA_NEW_MASK 0x10
#define MGA_NEW_TEXTURE 0x20
#define MGA_NEW_CULL 0x40
#define MGA_NEW_WARP 0x80
#define MGA_NEW_CONTEXT 0x100
typedef void (*mga_interp_func)( GLfloat t,
GLfloat *result,
const GLfloat *in,
const GLfloat *out );
/* if type == MGA_COLORBUFFER */
#define MGA_PF_MASK 0xf0
#define MGA_PF_INDEX 0
#define MGA_PF_565 (1 << 4)
#define MGA_PF_555 (9 << 4)
#define MGA_PF_888 (3 << 4)
#define MGA_PF_8888 (10 << 4)
#define MGA_PF_HASALPHA (8 << 4)
struct mga_context_t {
GLcontext *glCtx;
/* Hardware state - moved from mgabuf.h
*/
mgaUI32 Setup[MGA_CTX_SETUP_SIZE];
/* Variable sized vertices
*/
mgaUI32 vertsize;
/* Map GL texture units onto hardware.
*/
mgaUI32 multitex;
mgaUI32 tmu_source[2];
mgaUI32 tex_dest[2];
/* bookkeeping for textureing */
struct mga_texture_object_s TexObjList;
struct mga_texture_object_s SwappedOut;
struct mga_texture_object_s *CurrentTexObj[2];
/* shared texture palette */
mgaUI16 GlobalPalette[256];
int Fallback; /* or'ed values of FALLBACK_* */
/* Support for CVA and the fast paths */
unsigned int setupdone;
unsigned int setupindex;
unsigned int renderindex;
unsigned int using_fast_path;
unsigned int using_immediate_fast_path;
mga_interp_func interp;
/* Shortcircuit some state changes */
points_func PointsFunc;
line_func LineFunc;
triangle_func TriangleFunc;
quad_func QuadFunc;
/* Manage our own state */
GLuint new_state;
GLuint dirty;
GLubyte clearcolor[4];
GLushort MonoColor;
GLushort ClearColor;
/* DRI stuff
*/
drmBufPtr dma_buffer;
GLframebuffer *glBuffer;
memHeap_t *texHeap;
GLuint needClip;
GLuint warp_pipe;
/* These refer to the current draw (front vs. back) buffer:
*/
int drawOffset; /* draw buffer address in agp space */
int drawX; /* origin of drawable in draw buffer */
int drawY;
GLuint numClipRects; /* cliprects for that buffer */
XF86DRIClipRectPtr pClipRects;
int texAge;
XF86DRIClipRectRec draw_rect;
drmContext hHWContext;
drmLock *driHwLock;
int driFd;
Display *display;
__DRIdrawablePrivate *driDrawable;
__DRIscreenPrivate *driScreen;
mgaScreenPrivate *mgaScreen;
drm_mga_sarea_t *sarea;
};
typedef struct {
/* dma stuff */
mgaUI32 systemTexture;
mgaUI32 noSetupDma;
mgaUI32 default32BitTextures;
mgaUI32 swapBuffersCount;
/* options */
mgaUI32 nullprims; /* skip all primitive generation */
mgaUI32 noFallback; /* don't fall back to software, do
best-effort rendering */
mgaUI32 skipDma; /* don't send anything to the hardware */
/* performance counters */
mgaUI32 c_textureUtilization;
mgaUI32 c_textureSwaps;
mgaUI32 c_setupPointers;
mgaUI32 c_triangles;
mgaUI32 c_points;
mgaUI32 c_lines;
mgaUI32 c_drawWaits;
mgaUI32 c_dmaFlush;
mgaUI32 c_overflows;
} mgaGlx_t;
extern mgaGlx_t mgaglx;
#define MGAPACKCOLOR555(r,g,b,a) \
((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) | \
((a) ? 0x8000 : 0))
#define MGAPACKCOLOR565(r,g,b) \
((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))
#define MGAPACKCOLOR888(r,g,b) \
(((r) << 16) | ((g) << 8) | (b))
#define MGAPACKCOLOR8888(r,g,b,a) \
(((a) << 24) | ((r) << 16) | ((g) << 8) | (b))
#define MGAPACKCOLOR4444(r,g,b,a) \
((((a) & 0xf0) << 8) | (((r) & 0xf0) << 4) | ((g) & 0xf0) | ((b) >> 4))
#define MGA_DEBUG 0
#ifndef MGA_DEBUG
extern int MGA_DEBUG;
#endif
#define MGA_DEBUG_ALWAYS_SYNC 0x1
#define MGA_DEBUG_VERBOSE_MSG 0x2
#define MGA_DEBUG_VERBOSE_LRU 0x4
#define MGA_DEBUG_VERBOSE_DRI 0x8
static __inline__ mgaUI32 mgaPackColor(mgaUI32 format,
mgaUI8 r, mgaUI8 g,
mgaUI8 b, mgaUI8 a)
{
switch (format & MGA_PF_MASK) {
case MGA_PF_555:
return MGAPACKCOLOR555(r,g,b,a);
case MGA_PF_565:
return MGAPACKCOLOR565(r,g,b);
case MGA_PF_888:
return MGAPACKCOLOR888(r,g,b);
case MGA_PF_8888:
return MGAPACKCOLOR8888(r,g,b,a);
default:
return 0;
}
}
#endif
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