diff options
Diffstat (limited to 'src/mesa/drivers/dri/mga/mgacontext.h')
| -rw-r--r-- | src/mesa/drivers/dri/mga/mgacontext.h | 309 |
1 files changed, 309 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/mga/mgacontext.h b/src/mesa/drivers/dri/mga/mgacontext.h new file mode 100644 index 0000000000..3065ea9fd1 --- /dev/null +++ b/src/mesa/drivers/dri/mga/mgacontext.h @@ -0,0 +1,309 @@ +/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgacontext.h,v 1.7 2002/12/16 16:18:52 dawes Exp $*/ +/* + * Copyright 2000-2001 VA Linux Systems, Inc. + * All Rights Reserved. + * + * 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 + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, 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 (including the next + * paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#ifndef MGALIB_INC +#define MGALIB_INC + +/*#include <X11/Xlibint.h>*/ +#include "dri_util.h" +#include "mtypes.h" +#include "xf86drm.h" +#include "mm.h" +/*#include "mem.h"*/ +#include "mga_sarea.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_IS_G200(mmesa) (mmesa->mgaScreen->chipset == MGA_CARD_TYPE_G200) +#define MGA_IS_G400(mmesa) (mmesa->mgaScreen->chipset == MGA_CARD_TYPE_G400) + + +/* SoftwareFallback + * - texture env GL_BLEND -- can be fixed + * - 1D and 3D textures + * - incomplete textures + * - GL_DEPTH_FUNC == GL_NEVER not in h/w + */ +#define MGA_FALLBACK_TEXTURE 0x1 +#define MGA_FALLBACK_DRAW_BUFFER 0x2 +#define MGA_FALLBACK_READ_BUFFER 0x4 +#define MGA_FALLBACK_LOGICOP 0x8 +#define MGA_FALLBACK_RENDERMODE 0x10 +#define MGA_FALLBACK_STENCIL 0x20 +#define MGA_FALLBACK_DEPTH 0x40 + + +/* For mgaCtx->new_state. + */ +#define MGA_NEW_DEPTH 0x1 +#define MGA_NEW_ALPHA 0x2 +#define MGA_NEW_CLIP 0x8 +#define MGA_NEW_TEXTURE 0x20 +#define MGA_NEW_CULL 0x40 +#define MGA_NEW_WARP 0x80 +#define MGA_NEW_STENCIL 0x100 +#define MGA_NEW_CONTEXT 0x200 + +/* Use the templated vertex formats: + */ +#define TAG(x) mga##x +#include "tnl_dd/t_dd_vertex.h" +#undef TAG + +typedef struct mga_context_t mgaContext; +typedef struct mga_context_t *mgaContextPtr; + +typedef void (*mga_tri_func)( mgaContextPtr, mgaVertex *, mgaVertex *, + mgaVertex * ); +typedef void (*mga_line_func)( mgaContextPtr, mgaVertex *, mgaVertex * ); +typedef void (*mga_point_func)( mgaContextPtr, mgaVertex * ); + + + +/* Reasons why the GL_BLEND fallback mightn't work: + */ +#define MGA_BLEND_ENV_COLOR 0x1 +#define MGA_BLEND_MULTITEX 0x2 + +struct mga_texture_object_s; +struct mga_screen_private_s; + +#define MGA_TEX_MAXLEVELS 5 + +typedef struct mga_texture_object_s +{ + struct mga_texture_object_s *next; + struct mga_texture_object_s *prev; + struct gl_texture_object *tObj; + struct mga_context_t *ctx; + PMemBlock MemBlock; + GLuint offsets[MGA_TEX_MAXLEVELS]; + int lastLevel; + GLuint dirty_images; + GLuint totalSize; + int texelBytes; + GLuint age; + int bound; + int heap; /* agp or card */ + + mga_texture_regs_t setup; +} mgaTextureObject_t; + +struct mga_context_t { + + GLcontext *glCtx; + unsigned int lastStamp; /* fullscreen breaks dpriv->laststamp, + * need to shadow it here. */ + + /* Bookkeeping for texturing + */ + int lastTexHeap; + struct mga_texture_object_s TexObjList[MGA_NR_TEX_HEAPS]; + struct mga_texture_object_s SwappedOut; + struct mga_texture_object_s *CurrentTexObj[2]; + memHeap_t *texHeap[MGA_NR_TEX_HEAPS]; + int c_texupload; + int c_texusage; + int tex_thrash; + + + /* Map GL texture units onto hardware. + */ + GLuint tmu_source[2]; + + GLboolean default32BitTextures; + + /* Manage fallbacks + */ + GLuint Fallback; + + + /* Temporaries for translating away float colors: + */ + struct gl_client_array UbyteColor; + struct gl_client_array UbyteSecondaryColor; + + /* Support for limited GL_BLEND fallback + */ + unsigned int blend_flags; + unsigned int envcolor; + + /* Rasterization state + */ + GLuint SetupNewInputs; + GLuint SetupIndex; + GLuint RenderIndex; + + GLuint hw_primitive; + GLenum raster_primitive; + GLenum render_primitive; + + char *verts; + GLint vertex_stride_shift; + GLuint vertex_format; + GLuint vertex_size; + + /* Fallback rasterization functions + */ + mga_point_func draw_point; + mga_line_func draw_line; + mga_tri_func draw_tri; + + + /* Manage driver and hardware state + */ + GLuint new_gl_state; + GLuint new_state; + GLuint dirty; + + mga_context_regs_t setup; + + GLuint ClearColor; + GLuint ClearDepth; + GLuint poly_stipple; + GLfloat depth_scale; + + GLuint depth_clear_mask; + GLuint stencil_clear_mask; + GLuint hw_stencil; + GLuint haveHwStipple; + GLfloat hw_viewport[16]; + + /* Dma buffers + */ + drmBufPtr vertex_dma_buffer; + drmBufPtr iload_buffer; + + /* VBI + */ + GLuint vbl_seq; + + /* Drawable, cliprect and scissor information + */ + int dirty_cliprects; /* which sets of cliprects are uptodate? */ + int draw_buffer; /* which buffer are we rendering to */ + unsigned int drawOffset; /* draw buffer address in space */ + int read_buffer; + int readOffset; + int drawX, drawY; /* origin of drawable in draw buffer */ + int lastX, lastY; /* detect DSTORG bug */ + GLuint numClipRects; /* cliprects for the draw buffer */ + XF86DRIClipRectPtr pClipRects; + XF86DRIClipRectRec draw_rect; + XF86DRIClipRectRec scissor_rect; + int scissor; + + XF86DRIClipRectRec tmp_boxes[2][MGA_NR_SAREA_CLIPRECTS]; + + + /* Texture aging and DMA based aging. + */ + unsigned int texAge[MGA_NR_TEX_HEAPS];/* texture LRU age */ + unsigned int dirtyAge; /* buffer age for synchronization */ + + GLuint primary_offset; + + /* Mirrors of some DRI state. + */ + GLframebuffer *glBuffer; + drmContext hHWContext; + drmLock *driHwLock; + int driFd; + __DRIdrawablePrivate *driDrawable; + __DRIscreenPrivate *driScreen; + struct mga_screen_private_s *mgaScreen; + MGASAREAPrivPtr sarea; +}; + +#define MGA_CONTEXT(ctx) ((mgaContextPtr)(ctx->DriverCtx)) + +#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 MGAPACKCOLOR88(l, a) \ + (((l) << 8) | (a)) + +#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 DEBUG_ALWAYS_SYNC 0x1 +#define DEBUG_VERBOSE_MSG 0x2 +#define DEBUG_VERBOSE_LRU 0x4 +#define DEBUG_VERBOSE_DRI 0x8 +#define DEBUG_VERBOSE_IOCTL 0x10 +#define DEBUG_VERBOSE_2D 0x20 +#define DEBUG_VERBOSE_FALLBACK 0x40 + +static __inline__ GLuint mgaPackColor(GLuint cpp, + GLubyte r, GLubyte g, + GLubyte b, GLubyte a) +{ + switch (cpp) { + case 2: + return MGAPACKCOLOR565(r,g,b); + case 4: + return MGAPACKCOLOR8888(r,g,b,a); + default: + return 0; + } +} + + +/* + * Subpixel offsets for window coordinates: + */ +#define SUBPIXEL_X (-0.5F) +#define SUBPIXEL_Y (-0.5F + 0.125) + + +#define MGA_WA_TRIANGLES 0x18000000 +#define MGA_WA_TRISTRIP_T0 0x02010200 +#define MGA_WA_TRIFAN_T0 0x01000408 +#define MGA_WA_TRISTRIP_T0T1 0x02010400 +#define MGA_WA_TRIFAN_T0T1 0x01000810 + +#endif |