diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/mga/mgacontext.h')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/mga/mgacontext.h | 372 |
1 files changed, 372 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/mga/mgacontext.h b/nx-X11/extras/Mesa/src/mesa/drivers/dri/mga/mgacontext.h new file mode 100644 index 000000000..81348b6c7 --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/mga/mgacontext.h @@ -0,0 +1,372 @@ +/* $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 <stdint.h> +#include "drm.h" +#include "mga_drm.h" +#include "dri_util.h" +#include "mtypes.h" +#include "xf86drm.h" +#include "mm.h" +#include "colormac.h" +#include "texmem.h" +#include "macros.h" +#include "xmlconfig.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_BLEND 0x8 +#define MGA_FALLBACK_RENDERMODE 0x10 +#define MGA_FALLBACK_STENCIL 0x20 +#define MGA_FALLBACK_DEPTH 0x40 +#define MGA_FALLBACK_BORDER_MODE 0x80 +#define MGA_FALLBACK_DISABLE 0x100 + + +/* 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 * ); + + + +/* Texture environment color + */ +#define RGB_ZERO(c) (((c) & 0xffffff) == 0x000000) +#define RGB_ONE(c) (((c) & 0xffffff) == 0xffffff) +#define ALPHA_ZERO(c) (((c) >> 24) == 0x00) +#define ALPHA_ONE(c) (((c) >> 24) == 0xff) +#define RGBA_EQUAL(c) ((c) == PACK_COLOR_8888( (c) & 0xff, (c) & 0xff, \ + (c) & 0xff, (c) & 0xff )) + +struct mga_texture_object_s; +struct mga_screen_private_s; + +#define G200_TEX_MAXLEVELS 5 +#define G400_TEX_MAXLEVELS 11 + +typedef struct mga_texture_object_s +{ + driTextureObject base; + + /* The G200 only has the ability to use 5 mipmap levels (including the + * base level). The G400 does not have this restriction, but it still + * only has 5 offset pointers in the hardware. The trick on the G400 is + * upto the first 4 offset pointers point to mipmap levels. The last + * offset pointer tells how large the preceeding mipmap is. This value is + * then used to determine where the remaining mipmaps are. + * + * For example, if the first offsets[0] through offsets[2] are used as + * pointers, then offset[3] will be the size of the mipmap pointed to by + * offsets[2]. So mipmap level 3 will be at (offsets[2]+offsets[3]). For + * each successive mipmap level, offsets[3] is divided by 4 and added to + * the previous address. So mipmap level 4 will be at + * (offsets[2]+offsets[3]+(offsets[3] / 4)). + * + * The last pointer is selected by setting TO_texorgoffsetsel in its + * pointer. In the previous example, offset[2] would have + * TO_texorgoffsetsel or'ed in before writing it to the hardware. + * + * In the current driver all of the mipmaps are packed together linearly + * with mipmap level 0. Therefore offsets[0] points to the base of the + * texture (and has TO_texorgoffsetsel or'ed in), and offsets[1] is the + * size of the base texture. + * + * There is a possible optimization available here. At times the driver + * may not be able to allocate a single block of memory for the complete + * texture without ejecting some other textures from memory. It may be + * possible to put some of the lower mipmap levels (i.e., the larger + * mipmaps) in memory separate from the higher levels. + * + * The implementation should be fairly obvious, but getting "right" would + * likely be non-trivial. A first allocation for the entire texture would + * be attempted with a flag that says "don't eject other textures." If + * that failed, an additional allocation would be attmpted for just the + * base map. The process would repeat with the block of lower maps. The + * tricky parts would be in detecting when some of the levels had been + * ejected from texture memory by other textures and preventing the + * 4th allocation (for all the smallest mipmap levels) from kicking out + * any of the first three. + * + * This array holds G400_TEX_MAXLEVELS pointers to remove an if-statement + * in a loop in mgaSetTexImages. Values past G200_TEX_MAXLEVELS are not + * used. + */ + GLuint offsets[G400_TEX_MAXLEVELS]; + + int texelBytes; + GLuint age; + + drm_mga_texture_regs_t setup; + + /* If one texture dimension wraps with GL_CLAMP and the other with + * GL_CLAMP_TO_EDGE, we have to fallback to software. We would also have + * to fallback for GL_CLAMP_TO_BORDER. + */ + GLboolean border_fallback; + /* Depending on multitxturing and environment color + * GL_BLEND may have to be a software fallback. + */ + GLboolean texenv_fallback; +} mgaTextureObject_t; + +struct mga_hw_state { + GLuint specen; + GLuint cull; + GLuint cull_dualtex; + GLuint stencil; + GLuint stencilctl; + GLuint stencil_enable; + GLuint zmode; + GLuint rop; + GLuint alpha_func; + GLuint alpha_func_enable; + GLuint blend_func; + GLuint blend_func_enable; + GLuint alpha_sel; +}; + +struct mga_context_t { + + GLcontext *glCtx; + unsigned int lastStamp; /* fullscreen breaks dpriv->laststamp, + * need to shadow it here. */ + + /* Hardware state management + */ + struct mga_hw_state hw; + + /* Bookkeeping for texturing + */ + unsigned nr_heaps; + driTexHeap * texture_heaps[ MGA_NR_TEX_HEAPS ]; + driTextureObject swapped; + + struct mga_texture_object_s *CurrentTexObj[2]; + + + /* Map GL texture units onto hardware. + */ + GLuint tmu_source[2]; + + int texture_depth; + + /* Manage fallbacks + */ + GLuint Fallback; + + /* Texture environment color. + */ + unsigned int envcolor[2]; + GLboolean fcol_used; + GLboolean force_dualtex; + + /* Rasterization state + */ + GLuint SetupNewInputs; + GLuint SetupIndex; + GLuint RenderIndex; + + GLuint hw_primitive; + GLenum raster_primitive; + GLenum render_primitive; + + GLubyte *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 NewGLState; + GLuint dirty; + + drm_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; + GLuint vblank_flags; + + int64_t swap_ust; + int64_t swap_missed_ust; + + GLuint swap_count; + GLuint swap_missed_count; + + uint32_t last_frame_fence; + + /* 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 readOffset; + int drawX, drawY; /* origin of drawable in draw buffer */ + int lastX, lastY; /* detect DSTORG bug */ + GLuint numClipRects; /* cliprects for the draw buffer */ + drm_clip_rect_t *pClipRects; + drm_clip_rect_t draw_rect; + drm_clip_rect_t scissor_rect; + int scissor; + + drm_clip_rect_t 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. + */ + drm_context_t hHWContext; + drm_hw_lock_t *driHwLock; + int driFd; + __DRIdrawablePrivate *driDrawable; + __DRIdrawablePrivate *driReadable; + + /** + * Drawable used by Mesa for software fallbacks for reading and + * writing. It is set by Mesa's \c SetBuffer callback, and will always be + * either \c mga_context_t::driDrawable or \c mga_context_t::driReadable. + */ + __DRIdrawablePrivate *mesa_drawable; + + __DRIscreenPrivate *driScreen; + struct mga_screen_private_s *mgaScreen; + drm_mga_sarea_t *sarea; + + /* Configuration cache + */ + driOptionCache optionCache; +}; + +#define MGA_CONTEXT(ctx) ((mgaContextPtr)(ctx->DriverCtx)) + + + + +/* ================================================================ + * Debugging: + */ +#define DO_DEBUG 1 + +#if DO_DEBUG +extern int MGA_DEBUG; +#else +#define MGA_DEBUG 0 +#endif + +#define DEBUG_VERBOSE_MSG 0x01 +#define DEBUG_VERBOSE_DRI 0x02 +#define DEBUG_VERBOSE_IOCTL 0x04 +#define DEBUG_VERBOSE_TEXTURE 0x08 +#define DEBUG_VERBOSE_FALLBACK 0x10 + +static __inline__ GLuint mgaPackColor(GLuint cpp, + GLubyte r, GLubyte g, + GLubyte b, GLubyte a) +{ + switch (cpp) { + case 2: + return PACK_COLOR_565( r, g, b ); + case 4: + return PACK_COLOR_8888( a, r, g, b ); + 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 |