diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/i830/i830_tris.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/i830/i830_tris.c | 1056 |
1 files changed, 0 insertions, 1056 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/i830/i830_tris.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/i830/i830_tris.c deleted file mode 100644 index e0907202d..000000000 --- a/nx-X11/extras/Mesa/src/mesa/drivers/dri/i830/i830_tris.c +++ /dev/null @@ -1,1056 +0,0 @@ -/* $XFree86: xc/lib/GL/mesa/src/drv/i830/i830_tris.c,v 1.4 2002/12/10 01:26:54 dawes Exp $ */ -/************************************************************************** - -Copyright 2001 VA Linux Systems Inc., Fremont, California. - -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 -ATI, VA LINUX SYSTEMS AND/OR THEIR 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. - -**************************************************************************/ - -/* - * Original Authors: - * Keith Whitwell <keith@tungstengraphics.com> - * Adapted for use on the I830M: - * Jeff Hartmann <jhartmann@2d3d.com> - */ - -#include "glheader.h" -#include "context.h" -#include "macros.h" -#include "enums.h" -#include "dd.h" - -#include "swrast/swrast.h" -#include "swrast_setup/swrast_setup.h" -#include "tnl/t_context.h" -#include "tnl/t_pipeline.h" - -#include "i830_screen.h" -#include "i830_dri.h" - -#include "i830_tris.h" -#include "i830_state.h" -#include "i830_ioctl.h" -#include "i830_span.h" - -static void i830RenderPrimitive( GLcontext *ctx, GLenum prim ); - -/*********************************************************************** - * Emit primitives as inline vertices * - ***********************************************************************/ - -#if defined(USE_X86_ASM) -#define COPY_DWORDS( j, vb, vertsize, v ) \ -do { \ - int __tmp; \ - __asm__ __volatile__( "rep ; movsl" \ - : "=%c" (j), "=D" (vb), "=S" (__tmp) \ - : "0" (vertsize), \ - "D" ((long)vb), \ - "S" ((long)v) ); \ -} while (0) -#else -#define COPY_DWORDS( j, vb, vertsize, v ) \ -do { \ - for ( j = 0 ; j < vertsize ; j++ ) \ - vb[j] = ((GLuint *)v)[j]; \ - vb += vertsize; \ -} while (0) -#endif - -static void __inline__ i830_draw_triangle( i830ContextPtr imesa, - i830VertexPtr v0, - i830VertexPtr v1, - i830VertexPtr v2 ) -{ - GLuint vertsize = imesa->vertex_size; - GLuint *vb = i830AllocDmaLow( imesa, 3 * 4 * vertsize ); - int j; - - COPY_DWORDS( j, vb, vertsize, v0 ); - COPY_DWORDS( j, vb, vertsize, v1 ); - COPY_DWORDS( j, vb, vertsize, v2 ); -} - - -static void __inline__ i830_draw_quad( i830ContextPtr imesa, - i830VertexPtr v0, - i830VertexPtr v1, - i830VertexPtr v2, - i830VertexPtr v3 ) -{ - GLuint vertsize = imesa->vertex_size; - GLuint *vb = i830AllocDmaLow( imesa, 6 * 4 * vertsize ); - int j; - - COPY_DWORDS( j, vb, vertsize, v0 ); - COPY_DWORDS( j, vb, vertsize, v1 ); - COPY_DWORDS( j, vb, vertsize, v3 ); - COPY_DWORDS( j, vb, vertsize, v1 ); - COPY_DWORDS( j, vb, vertsize, v2 ); - COPY_DWORDS( j, vb, vertsize, v3 ); -} - - -static __inline__ void i830_draw_point( i830ContextPtr imesa, - i830VertexPtr tmp ) -{ - GLuint vertsize = imesa->vertex_size; - GLuint *vb = i830AllocDmaLow( imesa, 4 * vertsize ); - int j; - - /* Adjust for sub pixel position */ - *(float *)&vb[0] = tmp->v.x - 0.125; - *(float *)&vb[1] = tmp->v.y - 0.125; - for (j = 2 ; j < vertsize ; j++) - vb[j] = tmp->ui[j]; -} - - -static __inline__ void i830_draw_line( i830ContextPtr imesa, - i830VertexPtr v0, - i830VertexPtr v1 ) -{ - GLuint vertsize = imesa->vertex_size; - GLuint *vb = i830AllocDmaLow( imesa, 2 * 4 * vertsize ); - int j; - - COPY_DWORDS( j, vb, vertsize, v0 ); - COPY_DWORDS( j, vb, vertsize, v1 ); -} - - - -/*********************************************************************** - * Macros for t_dd_tritmp.h to draw basic primitives * - ***********************************************************************/ - -#define TRI( a, b, c ) \ -do { \ - if (DO_FALLBACK) \ - imesa->draw_tri( imesa, a, b, c ); \ - else \ - i830_draw_triangle( imesa, a, b, c ); \ -} while (0) - -#define QUAD( a, b, c, d ) \ -do { \ - if (DO_FALLBACK) { \ - imesa->draw_tri( imesa, a, b, d ); \ - imesa->draw_tri( imesa, b, c, d ); \ - } else \ - i830_draw_quad( imesa, a, b, c, d ); \ -} while (0) - -#define LINE( v0, v1 ) \ -do { \ - if (DO_FALLBACK) \ - imesa->draw_line( imesa, v0, v1 ); \ - else \ - i830_draw_line( imesa, v0, v1 ); \ -} while (0) - -#define POINT( v0 ) \ -do { \ - if (DO_FALLBACK) \ - imesa->draw_point( imesa, v0 ); \ - else \ - i830_draw_point( imesa, v0 ); \ -} while (0) - - -/*********************************************************************** - * Build render functions from dd templates * - ***********************************************************************/ - -#define I830_OFFSET_BIT 0x01 -#define I830_TWOSIDE_BIT 0x02 -#define I830_UNFILLED_BIT 0x04 -#define I830_FALLBACK_BIT 0x08 -#define I830_MAX_TRIFUNC 0x10 - - -static struct { - tnl_points_func points; - tnl_line_func line; - tnl_triangle_func triangle; - tnl_quad_func quad; -} rast_tab[I830_MAX_TRIFUNC]; - - -#define DO_FALLBACK (IND & I830_FALLBACK_BIT) -#define DO_OFFSET (IND & I830_OFFSET_BIT) -#define DO_UNFILLED (IND & I830_UNFILLED_BIT) -#define DO_TWOSIDE (IND & I830_TWOSIDE_BIT) -#define DO_FLAT 0 -#define DO_TRI 1 -#define DO_QUAD 1 -#define DO_LINE 1 -#define DO_POINTS 1 -#define DO_FULL_QUAD 1 - -#define HAVE_RGBA 1 -#define HAVE_SPEC 1 -#define HAVE_BACK_COLORS 0 -#define HAVE_HW_FLATSHADE 1 -#define VERTEX i830Vertex -#define TAB rast_tab - -#define DEPTH_SCALE (imesa->depth_scale) -#define UNFILLED_TRI unfilled_tri -#define UNFILLED_QUAD unfilled_quad -#define VERT_X(_v) _v->v.x -#define VERT_Y(_v) _v->v.y -#define VERT_Z(_v) _v->v.z -#define AREA_IS_CCW( a ) (a > 0) -#define GET_VERTEX(e) (imesa->verts + (e * imesa->vertex_size * sizeof(int))) - -#define VERT_SET_RGBA( v, c ) \ -do { \ - i830_color_t *color = (i830_color_t *)&((v)->ui[coloroffset]); \ - UNCLAMPED_FLOAT_TO_UBYTE(color->red, (c)[0]); \ - UNCLAMPED_FLOAT_TO_UBYTE(color->green, (c)[1]); \ - UNCLAMPED_FLOAT_TO_UBYTE(color->blue, (c)[2]); \ - UNCLAMPED_FLOAT_TO_UBYTE(color->alpha, (c)[3]); \ -} while (0) - -#define VERT_COPY_RGBA( v0, v1 ) v0->ui[coloroffset] = v1->ui[coloroffset] - -#define VERT_SET_SPEC( v0, c ) \ -do { \ - if (havespec) { \ - UNCLAMPED_FLOAT_TO_UBYTE(v0->v.specular.red, (c)[0]); \ - UNCLAMPED_FLOAT_TO_UBYTE(v0->v.specular.green, (c)[1]); \ - UNCLAMPED_FLOAT_TO_UBYTE(v0->v.specular.blue, (c)[2]); \ - } \ -} while (0) -#define VERT_COPY_SPEC( v0, v1 ) \ -do { \ - if (havespec) { \ - v0->v.specular.red = v1->v.specular.red; \ - v0->v.specular.green = v1->v.specular.green; \ - v0->v.specular.blue = v1->v.specular.blue; \ - } \ -} while (0) - -#define VERT_SAVE_RGBA( idx ) color[idx] = v[idx]->ui[coloroffset] -#define VERT_RESTORE_RGBA( idx ) v[idx]->ui[coloroffset] = color[idx] -#define VERT_SAVE_SPEC( idx ) if (havespec) spec[idx] = v[idx]->ui[5] -#define VERT_RESTORE_SPEC( idx ) if (havespec) v[idx]->ui[5] = spec[idx] - -#define LOCAL_VARS(n) \ - i830ContextPtr imesa = I830_CONTEXT(ctx); \ - GLuint color[n], spec[n]; \ - GLuint coloroffset = (imesa->vertex_size == 4 ? 3 : 4); \ - GLboolean havespec = (imesa->vertex_size > 4); \ - (void) color; (void) spec; (void) coloroffset; (void) havespec; - - -/*********************************************************************** - * Helpers for rendering unfilled primitives * - ***********************************************************************/ - -static const GLuint hw_prim[GL_POLYGON+1] = { - PRIM3D_POINTLIST, - PRIM3D_LINELIST, - PRIM3D_LINELIST, - PRIM3D_LINELIST, - PRIM3D_TRILIST, - PRIM3D_TRILIST, - PRIM3D_TRILIST, - PRIM3D_TRILIST, - PRIM3D_TRILIST, - PRIM3D_TRILIST -}; - -#define RASTERIZE(x) if (imesa->hw_primitive != hw_prim[x]) \ - i830RasterPrimitive( ctx, x, hw_prim[x] ) -#define RENDER_PRIMITIVE imesa->render_primitive -#define TAG(x) x -#define IND I830_FALLBACK_BIT -#include "tnl_dd/t_dd_unfilled.h" -#undef IND - -/*********************************************************************** - * Generate GL render functions * - ***********************************************************************/ - -#define IND (0) -#define TAG(x) x -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (I830_OFFSET_BIT) -#define TAG(x) x##_offset -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (I830_TWOSIDE_BIT) -#define TAG(x) x##_twoside -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (I830_TWOSIDE_BIT|I830_OFFSET_BIT) -#define TAG(x) x##_twoside_offset -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (I830_UNFILLED_BIT) -#define TAG(x) x##_unfilled -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (I830_OFFSET_BIT|I830_UNFILLED_BIT) -#define TAG(x) x##_offset_unfilled -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (I830_TWOSIDE_BIT|I830_UNFILLED_BIT) -#define TAG(x) x##_twoside_unfilled -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (I830_TWOSIDE_BIT|I830_OFFSET_BIT|I830_UNFILLED_BIT) -#define TAG(x) x##_twoside_offset_unfilled -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (I830_FALLBACK_BIT) -#define TAG(x) x##_fallback -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (I830_OFFSET_BIT|I830_FALLBACK_BIT) -#define TAG(x) x##_offset_fallback -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (I830_TWOSIDE_BIT|I830_FALLBACK_BIT) -#define TAG(x) x##_twoside_fallback -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (I830_TWOSIDE_BIT|I830_OFFSET_BIT|I830_FALLBACK_BIT) -#define TAG(x) x##_twoside_offset_fallback -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (I830_UNFILLED_BIT|I830_FALLBACK_BIT) -#define TAG(x) x##_unfilled_fallback -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (I830_OFFSET_BIT|I830_UNFILLED_BIT|I830_FALLBACK_BIT) -#define TAG(x) x##_offset_unfilled_fallback -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (I830_TWOSIDE_BIT|I830_UNFILLED_BIT|I830_FALLBACK_BIT) -#define TAG(x) x##_twoside_unfilled_fallback -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (I830_TWOSIDE_BIT|I830_OFFSET_BIT|I830_UNFILLED_BIT| \ - I830_FALLBACK_BIT) -#define TAG(x) x##_twoside_offset_unfilled_fallback -#include "tnl_dd/t_dd_tritmp.h" - - -static void init_rast_tab( void ) -{ - init(); - init_offset(); - init_twoside(); - init_twoside_offset(); - init_unfilled(); - init_offset_unfilled(); - init_twoside_unfilled(); - init_twoside_offset_unfilled(); - init_fallback(); - init_offset_fallback(); - init_twoside_fallback(); - init_twoside_offset_fallback(); - init_unfilled_fallback(); - init_offset_unfilled_fallback(); - init_twoside_unfilled_fallback(); - init_twoside_offset_unfilled_fallback(); -} - - -/*********************************************************************** - * Rasterization fallback helpers * - ***********************************************************************/ - - -/* This code is hit only when a mix of accelerated and unaccelerated - * primitives are being drawn, and only for the unaccelerated - * primitives. - */ -static void -i830_fallback_tri( i830ContextPtr imesa, - i830Vertex *v0, - i830Vertex *v1, - i830Vertex *v2 ) -{ - GLcontext *ctx = imesa->glCtx; - SWvertex v[3]; - - if (0) - fprintf(stderr, "\n%s\n", __FUNCTION__); - - _swsetup_Translate( ctx, v0, &v[0] ); - _swsetup_Translate( ctx, v1, &v[1] ); - _swsetup_Translate( ctx, v2, &v[2] ); - i830SpanRenderStart( ctx ); - _swrast_Triangle( ctx, &v[0], &v[1], &v[2] ); - i830SpanRenderFinish( ctx ); -} - - -static void -i830_fallback_line( i830ContextPtr imesa, - i830Vertex *v0, - i830Vertex *v1 ) -{ - GLcontext *ctx = imesa->glCtx; - SWvertex v[2]; - - if (0) - fprintf(stderr, "\n%s\n", __FUNCTION__); - - _swsetup_Translate( ctx, v0, &v[0] ); - _swsetup_Translate( ctx, v1, &v[1] ); - i830SpanRenderStart( ctx ); - _swrast_Line( ctx, &v[0], &v[1] ); - i830SpanRenderFinish( ctx ); -} - - -static void -i830_fallback_point( i830ContextPtr imesa, - i830Vertex *v0 ) -{ - GLcontext *ctx = imesa->glCtx; - SWvertex v[1]; - - if (0) - fprintf(stderr, "\n%s\n", __FUNCTION__); - - _swsetup_Translate( ctx, v0, &v[0] ); - i830SpanRenderStart( ctx ); - _swrast_Point( ctx, &v[0] ); - i830SpanRenderFinish( ctx ); -} - - - -/**********************************************************************/ -/* Render unclipped begin/end objects */ -/**********************************************************************/ - -#define IND 0 -#define V(x) (i830Vertex *)(vertptr + ((x) * vertsize * sizeof(int))) -#define RENDER_POINTS( start, count ) \ - for ( ; start < count ; start++) POINT( V(ELT(start)) ); -#define RENDER_LINE( v0, v1 ) LINE( V(v0), V(v1) ) -#define RENDER_TRI( v0, v1, v2 ) TRI( V(v0), V(v1), V(v2) ) -#define RENDER_QUAD( v0, v1, v2, v3 ) QUAD( V(v0), V(v1), V(v2), V(v3) ) -#define INIT(x) i830RenderPrimitive( ctx, x ) -#undef LOCAL_VARS -#define LOCAL_VARS \ - i830ContextPtr imesa = I830_CONTEXT(ctx); \ - GLubyte *vertptr = (GLubyte *)imesa->verts; \ - const GLuint vertsize = imesa->vertex_size; \ - const GLuint * const elt = TNL_CONTEXT(ctx)->vb.Elts; \ - (void) elt; -#define RESET_STIPPLE -#define RESET_OCCLUSION -#define PRESERVE_VB_DEFS -#define ELT(x) x -#define TAG(x) i830_##x##_verts -#include "tnl/t_vb_rendertmp.h" -#undef ELT -#undef TAG -#define TAG(x) i830_##x##_elts -#define ELT(x) elt[x] -#include "tnl/t_vb_rendertmp.h" - -/**********************************************************************/ -/* Render clipped primitives */ -/**********************************************************************/ - - - -static void i830RenderClippedPoly( GLcontext *ctx, const GLuint *elts, - GLuint n ) -{ - i830ContextPtr imesa = I830_CONTEXT(ctx); - TNLcontext *tnl = TNL_CONTEXT(ctx); - struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; - GLuint prim = imesa->render_primitive; - - /* Render the new vertices as an unclipped polygon. - */ - { - GLuint *tmp = VB->Elts; - VB->Elts = (GLuint *)elts; - tnl->Driver.Render.PrimTabElts[GL_POLYGON]( ctx, 0, n, - PRIM_BEGIN|PRIM_END ); - VB->Elts = tmp; - } - - /* Restore the render primitive - */ - if (prim != GL_POLYGON) - tnl->Driver.Render.PrimitiveNotify( ctx, prim ); -} - -static void i830RenderClippedLine( GLcontext *ctx, GLuint ii, GLuint jj ) -{ - TNLcontext *tnl = TNL_CONTEXT(ctx); - - tnl->Driver.Render.Line( ctx, ii, jj ); -} - -static void i830FastRenderClippedPoly( GLcontext *ctx, const GLuint *elts, - GLuint n ) -{ - i830ContextPtr imesa = I830_CONTEXT( ctx ); - GLuint vertsize = imesa->vertex_size; - GLuint *vb = i830AllocDmaLow( imesa, (n-2) * 3 * 4 * vertsize ); - GLubyte *vertptr = (GLubyte *)imesa->verts; - const GLuint *start = (const GLuint *)V(elts[0]); - int i,j; - - for (i = 2 ; i < n ; i++) { - COPY_DWORDS( j, vb, vertsize, V(elts[i-1]) ); - COPY_DWORDS( j, vb, vertsize, V(elts[i]) ); - COPY_DWORDS( j, vb, vertsize, start ); - } -} - -/**********************************************************************/ -/* Choose render functions */ -/**********************************************************************/ - - - -#define _I830_NEW_RENDERSTATE (_DD_NEW_LINE_STIPPLE | \ - _DD_NEW_TRI_UNFILLED | \ - _DD_NEW_TRI_LIGHT_TWOSIDE | \ - _DD_NEW_TRI_OFFSET | \ - _DD_NEW_TRI_STIPPLE | \ - _NEW_POLYGONSTIPPLE) - -#define POINT_FALLBACK (0) -#define LINE_FALLBACK (DD_LINE_STIPPLE) -#define TRI_FALLBACK (0) -#define ANY_FALLBACK_FLAGS (POINT_FALLBACK|LINE_FALLBACK|TRI_FALLBACK|\ - DD_TRI_STIPPLE) -#define ANY_RASTER_FLAGS (DD_TRI_LIGHT_TWOSIDE|DD_TRI_OFFSET|DD_TRI_UNFILLED) - -static void i830ChooseRenderState(GLcontext *ctx) -{ - TNLcontext *tnl = TNL_CONTEXT(ctx); - i830ContextPtr imesa = I830_CONTEXT(ctx); - GLuint flags = ctx->_TriangleCaps; - GLuint index = 0; - - if (I830_DEBUG & DEBUG_STATE) - fprintf(stderr,"\n%s\n",__FUNCTION__); - - if (flags & (ANY_FALLBACK_FLAGS|ANY_RASTER_FLAGS)) { - if (flags & ANY_RASTER_FLAGS) { - if (flags & DD_TRI_LIGHT_TWOSIDE) index |= I830_TWOSIDE_BIT; - if (flags & DD_TRI_OFFSET) index |= I830_OFFSET_BIT; - if (flags & DD_TRI_UNFILLED) index |= I830_UNFILLED_BIT; - } - - imesa->draw_point = i830_draw_point; - imesa->draw_line = i830_draw_line; - imesa->draw_tri = i830_draw_triangle; - - /* Hook in fallbacks for specific primitives. - */ - if (flags & ANY_FALLBACK_FLAGS) - { - if (flags & POINT_FALLBACK) - imesa->draw_point = i830_fallback_point; - - if (flags & LINE_FALLBACK) - imesa->draw_line = i830_fallback_line; - - if (flags & TRI_FALLBACK) - imesa->draw_tri = i830_fallback_tri; - - if ((flags & DD_TRI_STIPPLE) && !imesa->hw_stipple) { - imesa->draw_tri = i830_fallback_tri; - } - - index |= I830_FALLBACK_BIT; - } - } - - if (imesa->RenderIndex != index) { - imesa->RenderIndex = index; - - tnl->Driver.Render.Points = rast_tab[index].points; - tnl->Driver.Render.Line = rast_tab[index].line; - tnl->Driver.Render.Triangle = rast_tab[index].triangle; - tnl->Driver.Render.Quad = rast_tab[index].quad; - - if (index == 0) { - tnl->Driver.Render.PrimTabVerts = i830_render_tab_verts; - tnl->Driver.Render.PrimTabElts = i830_render_tab_elts; - tnl->Driver.Render.ClippedLine = line; /* from tritmp.h */ - tnl->Driver.Render.ClippedPolygon = i830FastRenderClippedPoly; - } else { - tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts; - tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts; - tnl->Driver.Render.ClippedLine = i830RenderClippedLine; - tnl->Driver.Render.ClippedPolygon = i830RenderClippedPoly; - } - } -} - -static const GLenum reduced_prim[GL_POLYGON+1] = { - GL_POINTS, - GL_LINES, - GL_LINES, - GL_LINES, - GL_TRIANGLES, - GL_TRIANGLES, - GL_TRIANGLES, - GL_TRIANGLES, - GL_TRIANGLES, - GL_TRIANGLES -}; - - -/**********************************************************************/ -/* High level hooks for t_vb_render.c */ -/**********************************************************************/ - - - -/* Determine the rasterized primitive when not drawing unfilled - * polygons. - * - * Used only for the default render stage which always decomposes - * primitives to trianges/lines/points. For the accelerated stage, - * which renders strips as strips, the equivalent calculations are - * performed in i810render.c. - */ -static void i830RenderPrimitive( GLcontext *ctx, GLenum prim ) -{ - i830ContextPtr imesa = I830_CONTEXT(ctx); - GLuint rprim = reduced_prim[prim]; - - imesa->render_primitive = prim; - - if (rprim == GL_TRIANGLES && (ctx->_TriangleCaps & DD_TRI_UNFILLED)) - return; - - if (imesa->reduced_primitive != rprim || - hw_prim[prim] != imesa->hw_primitive) { - i830RasterPrimitive( ctx, rprim, hw_prim[prim] ); - } -} - -static void i830RunPipeline( GLcontext *ctx ) -{ - i830ContextPtr imesa = I830_CONTEXT(ctx); - - if (imesa->NewGLState) { - if (imesa->NewGLState & _NEW_TEXTURE) { - I830_FIREVERTICES( imesa ); - i830UpdateTextureState( ctx ); /* may modify imesa->NewGLState */ - } - - if (!imesa->Fallback) { - if (imesa->NewGLState & _I830_NEW_RENDERSTATE) - i830ChooseRenderState( ctx ); - } - - imesa->NewGLState = 0; - } - - _tnl_run_pipeline( ctx ); -} - - -#define TEXCOORDTYPE_MASK (3<<11) - - - -static void set_projective_texturing( i830ContextPtr imesa, - GLuint i, - GLuint mcs) -{ - mcs |= (imesa->CurrentTexObj[i]->Setup[I830_TEXREG_MCS] & - ~TEXCOORDTYPE_MASK); - - if (mcs != imesa->CurrentTexObj[i]->Setup[I830_TEXREG_MCS]) { - I830_STATECHANGE(imesa, I830_UPLOAD_TEX_N(i)); - imesa->CurrentTexObj[i]->Setup[I830_TEXREG_MCS] = mcs; - } -} - - -#define SZ_TO_HW(sz) ((sz-2)&0x3) -#define EMIT_SZ(sz) (EMIT_1F + (sz) - 1) -#define EMIT_ATTR( ATTR, STYLE, V0 ) \ -do { \ - imesa->vertex_attrs[imesa->vertex_attr_count].attrib = (ATTR); \ - imesa->vertex_attrs[imesa->vertex_attr_count].format = (STYLE); \ - imesa->vertex_attr_count++; \ - v0 |= V0; \ -} while (0) - -#define EMIT_PAD( N ) \ -do { \ - imesa->vertex_attrs[imesa->vertex_attr_count].attrib = 0; \ - imesa->vertex_attrs[imesa->vertex_attr_count].format = EMIT_PAD; \ - imesa->vertex_attrs[imesa->vertex_attr_count].offset = (N); \ - imesa->vertex_attr_count++; \ -} while (0) - -#define VRTX_TEX_SET_FMT(n, x) ((x)<<((n)*2)) - -/* Make sure hardware vertex format is appropriate for VB state. - */ -static void i830RenderStart( GLcontext *ctx ) -{ - i830ContextPtr imesa = I830_CONTEXT(ctx); - TNLcontext *tnl = TNL_CONTEXT(ctx); - struct vertex_buffer *VB = &tnl->vb; - GLuint index = tnl->render_inputs; - GLuint v0 = STATE3D_VERTEX_FORMAT_CMD; - GLuint v2 = STATE3D_VERTEX_FORMAT_2_CMD; - GLuint force_emit = 0; - - /* Important: - */ - VB->AttribPtr[VERT_ATTRIB_POS] = VB->NdcPtr; - imesa->vertex_attr_count = 0; - - /* EMIT_ATTR's must be in order as they tell t_vertex.c how to - * build up a hardware vertex. - */ - if (index & _TNL_BITS_TEX_ANY) { - EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, VRTX_HAS_XYZW ); - } - else { - EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_3F_VIEWPORT, VRTX_HAS_XYZ ); - } - - EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4UB_4F_BGRA, VRTX_HAS_DIFFUSE ); - - if (index & (_TNL_BIT_COLOR1|_TNL_BIT_FOG)) { - - if (index & _TNL_BIT_COLOR1) - { - if (imesa->vertex_attrs[imesa->vertex_attr_count].format != EMIT_3UB_3F_BGR) - force_emit=1; - EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_3UB_3F_BGR, VRTX_HAS_SPEC ); - } - else - { - if (imesa->vertex_attrs[imesa->vertex_attr_count].format != EMIT_PAD) - force_emit=1; - EMIT_PAD( 3 ); - } - if (index & _TNL_BIT_FOG) - { - if (imesa->vertex_attrs[imesa->vertex_attr_count].format != EMIT_1UB_1F) - force_emit=1; - EMIT_ATTR( _TNL_ATTRIB_FOG, EMIT_1UB_1F, VRTX_HAS_SPEC ); - } - else - { - if (imesa->vertex_attrs[imesa->vertex_attr_count].format != EMIT_PAD) - force_emit=1; - EMIT_PAD( 1 ); - } - } - - if (index & _TNL_BITS_TEX_ANY) { - int i, last_stage = 0; - - for (i = 0; i < ctx->Const.MaxTextureUnits ; i++) - if (index & _TNL_BIT_TEX(i)) - last_stage = i+1; - - - for (i = 0; i < last_stage; i++) { - GLuint sz = VB->TexCoordPtr[i]->size; - GLuint emit; - GLuint mcs; - - /* i830 doesn't like 1D or 4D texcoords: - */ - switch (sz) { - case 1: - case 2: - case 3: /* no attempt at cube texturing so far */ - emit = EMIT_2F; - sz = 2; - mcs = TEXCOORDTYPE_CARTESIAN; - break; - case 4: - emit = EMIT_3F_XYW; - sz = 3; - mcs = TEXCOORDTYPE_HOMOGENEOUS; - break; - default: - continue; - }; - - v2 |= VRTX_TEX_SET_FMT(i, SZ_TO_HW(sz)); - EMIT_ATTR( _TNL_ATTRIB_TEX0+i, EMIT_SZ(sz), 0 ); - - if (imesa->CurrentTexObj[i]) - set_projective_texturing( imesa, i, mcs ); - } - - v0 |= VRTX_TEX_COORD_COUNT(last_stage); - } - - /* Only need to change the vertex emit code if there has been a - * statechange to a new hardware vertex format: - */ - if (v0 != imesa->Setup[I830_CTXREG_VF] || - v2 != imesa->Setup[I830_CTXREG_VF2] || - force_emit == 1) { - - I830_STATECHANGE( imesa, I830_UPLOAD_CTX ); - - /* Must do this *after* statechange, so as not to affect - * buffered vertices reliant on the old state: - */ - imesa->vertex_size = - _tnl_install_attrs( ctx, - imesa->vertex_attrs, - imesa->vertex_attr_count, - imesa->ViewportMatrix.m, 0 ); - - imesa->vertex_size >>= 2; - - imesa->Setup[I830_CTXREG_VF] = v0; - imesa->Setup[I830_CTXREG_VF2] = v2; - } -} - - -static void i830RenderFinish( GLcontext *ctx ) -{ - if (I830_CONTEXT(ctx)->RenderIndex & I830_FALLBACK_BIT) - _swrast_flush( ctx ); -} - - - - -/* System to flush dma and emit state changes based on the rasterized - * primitive. - */ -void i830RasterPrimitive( GLcontext *ctx, - GLenum rprim, - GLuint hwprim ) -{ - i830ContextPtr imesa = I830_CONTEXT(ctx); - GLuint aa = imesa->Setup[I830_CTXREG_AA]; - GLuint st1 = imesa->StippleSetup[I830_STPREG_ST1]; - - aa &= ~AA_LINE_ENABLE; - - if (I830_DEBUG & DEBUG_PRIMS) { - /* Prints reduced prim, and hw prim */ - char *prim_name = "Unknown"; - - switch(hwprim) { - case PRIM3D_POINTLIST: - prim_name = "PointList"; - break; - case PRIM3D_LINELIST: - prim_name = "LineList"; - break; - case PRIM3D_LINESTRIP: - prim_name = "LineStrip"; - break; - case PRIM3D_TRILIST: - prim_name = "TriList"; - break; - case PRIM3D_TRISTRIP: - prim_name = "TriStrip"; - break; - case PRIM3D_TRIFAN: - prim_name = "TriFan"; - break; - case PRIM3D_POLY: - prim_name = "Polygons"; - break; - default: - break; - } - - fprintf(stderr, "%s : rprim(%s), hwprim(%s)\n", - __FUNCTION__, - _mesa_lookup_enum_by_nr(rprim), - prim_name); - } - - switch (rprim) { - case GL_TRIANGLES: - aa |= AA_LINE_DISABLE; - if (ctx->Polygon.StippleFlag) - st1 |= ST1_ENABLE; - else - st1 &= ~ST1_ENABLE; - break; - case GL_LINES: - st1 &= ~ST1_ENABLE; - if (ctx->Line.SmoothFlag) { - aa |= AA_LINE_ENABLE; - } else { - aa |= AA_LINE_DISABLE; - } - break; - case GL_POINTS: - st1 &= ~ST1_ENABLE; - aa |= AA_LINE_DISABLE; - break; - default: - return; - } - - imesa->reduced_primitive = rprim; - - if (aa != imesa->Setup[I830_CTXREG_AA]) { - I830_STATECHANGE(imesa, I830_UPLOAD_CTX); - imesa->Setup[I830_CTXREG_AA] = aa; - } - -#if 0 - if (st1 != imesa->StippleSetup[I830_STPREG_ST1]) { - I830_STATECHANGE(imesa, I830_UPLOAD_STIPPLE); - imesa->StippleSetup[I830_STPREG_ST1] = st1; - } -#endif - - if (hwprim != imesa->hw_primitive) { - I830_STATECHANGE(imesa, 0); - imesa->hw_primitive = hwprim; - } -} - -/**********************************************************************/ -/* Transition to/from hardware rasterization. */ -/**********************************************************************/ - -static char *fallbackStrings[] = { - "Texture", - "Draw buffer", - "Read buffer", - "Color mask", - "Render mode", - "Stencil", - "Stipple", - "User disable" -}; - - -static char *getFallbackString(GLuint bit) -{ - int i = 0; - while (bit > 1) { - i++; - bit >>= 1; - } - return fallbackStrings[i]; -} - - - -void i830Fallback( i830ContextPtr imesa, GLuint bit, GLboolean mode ) -{ - GLcontext *ctx = imesa->glCtx; - TNLcontext *tnl = TNL_CONTEXT(ctx); - GLuint oldfallback = imesa->Fallback; - - if (mode) { - imesa->Fallback |= bit; - if (oldfallback == 0) { - I830_FIREVERTICES(imesa); - if (I830_DEBUG & DEBUG_FALLBACKS) - fprintf(stderr, "ENTER FALLBACK %s\n", getFallbackString( bit )); - _swsetup_Wakeup( ctx ); - imesa->RenderIndex = ~0; - } - } - else { - imesa->Fallback &= ~bit; - if (oldfallback == bit) { - _swrast_flush( ctx ); - if (I830_DEBUG & DEBUG_FALLBACKS) - fprintf(stderr, "LEAVE FALLBACK %s\n", getFallbackString( bit )); - tnl->Driver.Render.Start = i830RenderStart; - tnl->Driver.Render.PrimitiveNotify = i830RenderPrimitive; - tnl->Driver.Render.Finish = i830RenderFinish; - - tnl->Driver.Render.BuildVertices = _tnl_build_vertices; - tnl->Driver.Render.CopyPV = _tnl_copy_pv; - tnl->Driver.Render.Interp = _tnl_interp; - - _tnl_invalidate_vertex_state( ctx, ~0 ); - _tnl_invalidate_vertices( ctx, ~0 ); - _tnl_install_attrs( ctx, - imesa->vertex_attrs, - imesa->vertex_attr_count, - imesa->ViewportMatrix.m, 0 ); - - imesa->NewGLState |= _I830_NEW_RENDERSTATE; - } - } -} - - - - -/**********************************************************************/ -/* Initialization. */ -/**********************************************************************/ - -/** - * \bug - * How are the magic numbers 12 and 26 in the call to \c _tnl_init_vertices - * derived? - */ -void i830InitTriFuncs( GLcontext *ctx ) -{ - TNLcontext *tnl = TNL_CONTEXT(ctx); - static int firsttime = 1; - - if (firsttime) { - init_rast_tab(); - firsttime = 0; - } - - tnl->Driver.RunPipeline = i830RunPipeline; - tnl->Driver.Render.Start = i830RenderStart; - tnl->Driver.Render.Finish = i830RenderFinish; - tnl->Driver.Render.PrimitiveNotify = i830RenderPrimitive; - tnl->Driver.Render.ResetLineStipple = _swrast_ResetLineStipple; - tnl->Driver.Render.BuildVertices = _tnl_build_vertices; - tnl->Driver.Render.CopyPV = _tnl_copy_pv; - tnl->Driver.Render.Interp = _tnl_interp; - - _tnl_init_vertices( ctx, ctx->Const.MaxArrayLockSize + 12, - 26 * sizeof(GLfloat) ); - - I830_CONTEXT(ctx)->verts = (char *)tnl->clipspace.vertex_buf; -} |