| /* $XFree86: xc/lib/GL/mesa/src/drv/i810/i810tris.c,v 1.7 2002/10/30 12:51:33 alanh 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. |
| |
| **************************************************************************/ |
| |
| /* |
| * Authors: |
| * Keith Whitwell <keith@tungstengraphics.com> |
| */ |
| |
| #include "glheader.h" |
| #include "mtypes.h" |
| #include "macros.h" |
| #include "enums.h" |
| #include "colormac.h" |
| |
| #include "swrast/swrast.h" |
| #include "swrast_setup/swrast_setup.h" |
| #include "tnl/t_context.h" |
| #include "tnl/t_pipeline.h" |
| |
| #include "i810screen.h" |
| #include "i810_dri.h" |
| |
| #include "i810tris.h" |
| #include "i810state.h" |
| #include "i810vb.h" |
| #include "i810ioctl.h" |
| |
| static void i810RenderPrimitive( 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 INLINE void i810_draw_triangle( i810ContextPtr imesa, |
| i810VertexPtr v0, |
| i810VertexPtr v1, |
| i810VertexPtr v2 ) |
| { |
| GLuint vertsize = imesa->vertex_size; |
| GLuint *vb = i810AllocDmaLow( 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 INLINE void i810_draw_quad( i810ContextPtr imesa, |
| i810VertexPtr v0, |
| i810VertexPtr v1, |
| i810VertexPtr v2, |
| i810VertexPtr v3 ) |
| { |
| GLuint vertsize = imesa->vertex_size; |
| GLuint *vb = i810AllocDmaLow( 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 i810_draw_point( i810ContextPtr imesa, |
| i810VertexPtr tmp ) |
| { |
| GLfloat sz = 0.5 * CLAMP(imesa->glCtx->Point.Size, |
| imesa->glCtx->Const.MinPointSize, |
| imesa->glCtx->Const.MaxPointSize); |
| int vertsize = imesa->vertex_size; |
| GLuint *vb = i810AllocDmaLow( imesa, 2 * 4 * vertsize ); |
| int j; |
| |
| /* Draw a point as a horizontal line. |
| */ |
| *(float *)&vb[0] = tmp->v.x - sz + 0.125; |
| for (j = 1 ; j < vertsize ; j++) |
| vb[j] = tmp->ui[j]; |
| vb += vertsize; |
| |
| *(float *)&vb[0] = tmp->v.x + sz + 0.125; |
| for (j = 1 ; j < vertsize ; j++) |
| vb[j] = tmp->ui[j]; |
| vb += vertsize; |
| } |
| |
| |
| static INLINE void i810_draw_line( i810ContextPtr imesa, |
| i810VertexPtr v0, |
| i810VertexPtr v1 ) |
| { |
| GLuint vertsize = imesa->vertex_size; |
| GLuint *vb = i810AllocDmaLow( 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 (0) fprintf(stderr, "hw TRI\n"); \ |
| if (DO_FALLBACK) \ |
| imesa->draw_tri( imesa, a, b, c ); \ |
| else \ |
| i810_draw_triangle( imesa, a, b, c ); \ |
| } while (0) |
| |
| #define QUAD( a, b, c, d ) \ |
| do { \ |
| if (0) fprintf(stderr, "hw QUAD\n"); \ |
| if (DO_FALLBACK) { \ |
| imesa->draw_tri( imesa, a, b, d ); \ |
| imesa->draw_tri( imesa, b, c, d ); \ |
| } else \ |
| i810_draw_quad( imesa, a, b, c, d ); \ |
| } while (0) |
| |
| #define LINE( v0, v1 ) \ |
| do { \ |
| if (0) fprintf(stderr, "hw LINE\n"); \ |
| if (DO_FALLBACK) \ |
| imesa->draw_line( imesa, v0, v1 ); \ |
| else \ |
| i810_draw_line( imesa, v0, v1 ); \ |
| } while (0) |
| |
| #define POINT( v0 ) \ |
| do { \ |
| if (0) fprintf(stderr, "hw POINT\n"); \ |
| if (DO_FALLBACK) \ |
| imesa->draw_point( imesa, v0 ); \ |
| else \ |
| i810_draw_point( imesa, v0 ); \ |
| } while (0) |
| |
| |
| /*********************************************************************** |
| * Build render functions from dd templates * |
| ***********************************************************************/ |
| |
| #define I810_OFFSET_BIT 0x01 |
| #define I810_TWOSIDE_BIT 0x02 |
| #define I810_UNFILLED_BIT 0x04 |
| #define I810_FALLBACK_BIT 0x08 |
| #define I810_MAX_TRIFUNC 0x10 |
| |
| |
| static struct { |
| tnl_points_func points; |
| tnl_line_func line; |
| tnl_triangle_func triangle; |
| tnl_quad_func quad; |
| } rast_tab[I810_MAX_TRIFUNC]; |
| |
| |
| #define DO_FALLBACK (IND & I810_FALLBACK_BIT) |
| #define DO_OFFSET (IND & I810_OFFSET_BIT) |
| #define DO_UNFILLED (IND & I810_UNFILLED_BIT) |
| #define DO_TWOSIDE (IND & I810_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 i810Vertex |
| #define TAB rast_tab |
| |
| |
| #define DEPTH_SCALE (1.0/0xffff) |
| #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 { \ |
| i810_color_t *color = (i810_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) \ |
| i810ContextPtr imesa = I810_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] = { |
| PR_LINES, |
| PR_LINES, |
| PR_LINES, |
| PR_LINES, |
| PR_TRIANGLES, |
| PR_TRIANGLES, |
| PR_TRIANGLES, |
| PR_TRIANGLES, |
| PR_TRIANGLES, |
| PR_TRIANGLES |
| }; |
| |
| #define RASTERIZE(x) if (imesa->hw_primitive != hw_prim[x]) \ |
| i810RasterPrimitive( ctx, x, hw_prim[x] ) |
| #define RENDER_PRIMITIVE imesa->render_primitive |
| #define TAG(x) x |
| #define IND I810_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 (I810_OFFSET_BIT) |
| #define TAG(x) x##_offset |
| #include "tnl_dd/t_dd_tritmp.h" |
| |
| #define IND (I810_TWOSIDE_BIT) |
| #define TAG(x) x##_twoside |
| #include "tnl_dd/t_dd_tritmp.h" |
| |
| #define IND (I810_TWOSIDE_BIT|I810_OFFSET_BIT) |
| #define TAG(x) x##_twoside_offset |
| #include "tnl_dd/t_dd_tritmp.h" |
| |
| #define IND (I810_UNFILLED_BIT) |
| #define TAG(x) x##_unfilled |
| #include "tnl_dd/t_dd_tritmp.h" |
| |
| #define IND (I810_OFFSET_BIT|I810_UNFILLED_BIT) |
| #define TAG(x) x##_offset_unfilled |
| #include "tnl_dd/t_dd_tritmp.h" |
| |
| #define IND (I810_TWOSIDE_BIT|I810_UNFILLED_BIT) |
| #define TAG(x) x##_twoside_unfilled |
| #include "tnl_dd/t_dd_tritmp.h" |
| |
| #define IND (I810_TWOSIDE_BIT|I810_OFFSET_BIT|I810_UNFILLED_BIT) |
| #define TAG(x) x##_twoside_offset_unfilled |
| #include "tnl_dd/t_dd_tritmp.h" |
| |
| #define IND (I810_FALLBACK_BIT) |
| #define TAG(x) x##_fallback |
| #include "tnl_dd/t_dd_tritmp.h" |
| |
| #define IND (I810_OFFSET_BIT|I810_FALLBACK_BIT) |
| #define TAG(x) x##_offset_fallback |
| #include "tnl_dd/t_dd_tritmp.h" |
| |
| #define IND (I810_TWOSIDE_BIT|I810_FALLBACK_BIT) |
| #define TAG(x) x##_twoside_fallback |
| #include "tnl_dd/t_dd_tritmp.h" |
| |
| #define IND (I810_TWOSIDE_BIT|I810_OFFSET_BIT|I810_FALLBACK_BIT) |
| #define TAG(x) x##_twoside_offset_fallback |
| #include "tnl_dd/t_dd_tritmp.h" |
| |
| #define IND (I810_UNFILLED_BIT|I810_FALLBACK_BIT) |
| #define TAG(x) x##_unfilled_fallback |
| #include "tnl_dd/t_dd_tritmp.h" |
| |
| #define IND (I810_OFFSET_BIT|I810_UNFILLED_BIT|I810_FALLBACK_BIT) |
| #define TAG(x) x##_offset_unfilled_fallback |
| #include "tnl_dd/t_dd_tritmp.h" |
| |
| #define IND (I810_TWOSIDE_BIT|I810_UNFILLED_BIT|I810_FALLBACK_BIT) |
| #define TAG(x) x##_twoside_unfilled_fallback |
| #include "tnl_dd/t_dd_tritmp.h" |
| |
| #define IND (I810_TWOSIDE_BIT|I810_OFFSET_BIT|I810_UNFILLED_BIT| \ |
| I810_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 |
| i810_fallback_tri( i810ContextPtr imesa, |
| i810Vertex *v0, |
| i810Vertex *v1, |
| i810Vertex *v2 ) |
| { |
| GLcontext *ctx = imesa->glCtx; |
| SWvertex v[3]; |
| i810_translate_vertex( ctx, v0, &v[0] ); |
| i810_translate_vertex( ctx, v1, &v[1] ); |
| i810_translate_vertex( ctx, v2, &v[2] ); |
| _swrast_Triangle( ctx, &v[0], &v[1], &v[2] ); |
| } |
| |
| |
| static void |
| i810_fallback_line( i810ContextPtr imesa, |
| i810Vertex *v0, |
| i810Vertex *v1 ) |
| { |
| GLcontext *ctx = imesa->glCtx; |
| SWvertex v[2]; |
| i810_translate_vertex( ctx, v0, &v[0] ); |
| i810_translate_vertex( ctx, v1, &v[1] ); |
| _swrast_Line( ctx, &v[0], &v[1] ); |
| } |
| |
| |
| static void |
| i810_fallback_point( i810ContextPtr imesa, |
| i810Vertex *v0 ) |
| { |
| GLcontext *ctx = imesa->glCtx; |
| SWvertex v[1]; |
| i810_translate_vertex( ctx, v0, &v[0] ); |
| _swrast_Point( ctx, &v[0] ); |
| } |
| |
| |
| |
| /**********************************************************************/ |
| /* Render unclipped begin/end objects */ |
| /**********************************************************************/ |
| |
| #define IND 0 |
| #define V(x) (i810Vertex *)(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) i810RenderPrimitive( ctx, x ) |
| #undef LOCAL_VARS |
| #define LOCAL_VARS \ |
| i810ContextPtr imesa = I810_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) i810_##x##_verts |
| #include "tnl/t_vb_rendertmp.h" |
| #undef ELT |
| #undef TAG |
| #define TAG(x) i810_##x##_elts |
| #define ELT(x) elt[x] |
| #include "tnl/t_vb_rendertmp.h" |
| |
| /**********************************************************************/ |
| /* Render clipped primitives */ |
| /**********************************************************************/ |
| |
| |
| |
| static void i810RenderClippedPoly( GLcontext *ctx, const GLuint *elts, |
| GLuint n ) |
| { |
| i810ContextPtr imesa = I810_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 i810RenderClippedLine( GLcontext *ctx, GLuint ii, GLuint jj ) |
| { |
| TNLcontext *tnl = TNL_CONTEXT(ctx); |
| tnl->Driver.Render.Line( ctx, ii, jj ); |
| } |
| |
| static void i810FastRenderClippedPoly( GLcontext *ctx, const GLuint *elts, |
| GLuint n ) |
| { |
| i810ContextPtr imesa = I810_CONTEXT( ctx ); |
| GLuint vertsize = imesa->vertex_size; |
| GLuint *vb = i810AllocDmaLow( 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 */ |
| /**********************************************************************/ |
| |
| /*********************************************************************** |
| * Rasterization fallback helpers * |
| ***********************************************************************/ |
| |
| |
| |
| #define _I810_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 i810ChooseRenderState(GLcontext *ctx) |
| { |
| TNLcontext *tnl = TNL_CONTEXT(ctx); |
| i810ContextPtr imesa = I810_CONTEXT(ctx); |
| GLuint flags = ctx->_TriangleCaps; |
| GLuint index = 0; |
| |
| if (I810_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 |= I810_TWOSIDE_BIT; |
| if (flags & DD_TRI_OFFSET) index |= I810_OFFSET_BIT; |
| if (flags & DD_TRI_UNFILLED) index |= I810_UNFILLED_BIT; |
| } |
| |
| imesa->draw_point = i810_draw_point; |
| imesa->draw_line = i810_draw_line; |
| imesa->draw_tri = i810_draw_triangle; |
| |
| /* Hook in fallbacks for specific primitives. |
| */ |
| if (flags & ANY_FALLBACK_FLAGS) |
| { |
| if (flags & POINT_FALLBACK) |
| imesa->draw_point = i810_fallback_point; |
| |
| if (flags & LINE_FALLBACK) |
| imesa->draw_line = i810_fallback_line; |
| |
| if (flags & TRI_FALLBACK) |
| imesa->draw_tri = i810_fallback_tri; |
| |
| if ((flags & DD_TRI_STIPPLE) && !imesa->stipple_in_hw) |
| imesa->draw_tri = i810_fallback_tri; |
| |
| index |= I810_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 = i810_render_tab_verts; |
| tnl->Driver.Render.PrimTabElts = i810_render_tab_elts; |
| tnl->Driver.Render.ClippedLine = line; /* from tritmp.h */ |
| tnl->Driver.Render.ClippedPolygon = i810FastRenderClippedPoly; |
| } else { |
| tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts; |
| tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts; |
| tnl->Driver.Render.ClippedLine = i810RenderClippedLine; |
| tnl->Driver.Render.ClippedPolygon = i810RenderClippedPoly; |
| } |
| } |
| } |
| |
| 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 i810RenderPrimitive( GLcontext *ctx, GLenum prim ) |
| { |
| i810ContextPtr imesa = I810_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) { |
| i810RasterPrimitive( ctx, rprim, hw_prim[prim] ); |
| } |
| } |
| |
| static void i810RunPipeline( GLcontext *ctx ) |
| { |
| i810ContextPtr imesa = I810_CONTEXT(ctx); |
| |
| if (imesa->new_state) { |
| if (imesa->new_state & _NEW_TEXTURE) |
| i810UpdateTextureState( ctx ); /* may modify imesa->new_state */ |
| |
| if (!imesa->Fallback) { |
| if (imesa->new_state & _I810_NEW_VERTEX) |
| i810ChooseVertexState( ctx ); |
| |
| if (imesa->new_state & _I810_NEW_RENDERSTATE) |
| i810ChooseRenderState( ctx ); |
| } |
| |
| imesa->new_state = 0; |
| } |
| |
| _tnl_run_pipeline( ctx ); |
| } |
| |
| static void i810RenderStart( GLcontext *ctx ) |
| { |
| /* Check for projective textureing. Make sure all texcoord |
| * pointers point to something. (fix in mesa?) |
| */ |
| i810CheckTexSizes( ctx ); |
| } |
| |
| static void i810RenderFinish( GLcontext *ctx ) |
| { |
| if (I810_CONTEXT(ctx)->RenderIndex & I810_FALLBACK_BIT) |
| _swrast_flush( ctx ); |
| } |
| |
| |
| |
| |
| /* System to flush dma and emit state changes based on the rasterized |
| * primitive. |
| */ |
| void i810RasterPrimitive( GLcontext *ctx, |
| GLenum rprim, |
| GLuint hwprim ) |
| { |
| i810ContextPtr imesa = I810_CONTEXT(ctx); |
| GLuint st1 = imesa->Setup[I810_CTXREG_ST1]; |
| GLuint aa = imesa->Setup[I810_CTXREG_AA]; |
| GLuint lcs = imesa->Setup[I810_CTXREG_LCS]; |
| |
| st1 &= ~ST1_ENABLE; |
| aa &= ~AA_ENABLE; |
| |
| if (I810_DEBUG & DEBUG_PRIMS) { |
| /* Prints reduced prim, and hw prim */ |
| char *prim_name = "Unknown"; |
| |
| switch(hwprim) { |
| case PR_LINES: |
| prim_name = "Lines"; |
| break; |
| case PR_LINESTRIP: |
| prim_name = "LineStrip"; |
| break; |
| case PR_TRIANGLES: |
| prim_name = "Triangles"; |
| break; |
| case PR_TRISTRIP_0: |
| prim_name = "TriStrip_0"; |
| break; |
| case PR_TRIFAN: |
| prim_name = "TriFan"; |
| break; |
| case PR_POLYGON: |
| 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: |
| if (ctx->Polygon.StippleFlag) |
| st1 |= ST1_ENABLE; |
| if (ctx->Polygon.SmoothFlag) |
| aa |= AA_ENABLE; |
| break; |
| case GL_LINES: |
| lcs &= ~(LCS_LINEWIDTH_3_0|LCS_LINEWIDTH_0_5); |
| lcs |= imesa->LcsLineWidth; |
| if (ctx->Line.SmoothFlag) { |
| aa |= AA_ENABLE; |
| lcs |= LCS_LINEWIDTH_0_5; |
| } |
| break; |
| case GL_POINTS: |
| lcs &= ~(LCS_LINEWIDTH_3_0|LCS_LINEWIDTH_0_5); |
| lcs |= imesa->LcsPointSize; |
| if (ctx->Point.SmoothFlag) { |
| aa |= AA_ENABLE; |
| lcs |= LCS_LINEWIDTH_0_5; |
| } |
| break; |
| default: |
| return; |
| } |
| |
| imesa->reduced_primitive = rprim; |
| |
| if (st1 != imesa->Setup[I810_CTXREG_ST1] || |
| aa != imesa->Setup[I810_CTXREG_AA] || |
| lcs != imesa->Setup[I810_CTXREG_LCS]) |
| { |
| I810_STATECHANGE(imesa, I810_UPLOAD_CTX); |
| imesa->hw_primitive = hwprim; |
| imesa->Setup[I810_CTXREG_LCS] = lcs; |
| imesa->Setup[I810_CTXREG_ST1] = st1; |
| imesa->Setup[I810_CTXREG_AA] = aa; |
| } |
| else if (hwprim != imesa->hw_primitive) { |
| I810_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 i810Fallback( i810ContextPtr imesa, GLuint bit, GLboolean mode ) |
| { |
| GLcontext *ctx = imesa->glCtx; |
| TNLcontext *tnl = TNL_CONTEXT(ctx); |
| GLuint oldfallback = imesa->Fallback; |
| |
| if (0) fprintf(stderr, "%s old %x bit %x mode %d\n", __FUNCTION__, |
| imesa->Fallback, bit, mode ); |
| |
| if (mode) { |
| imesa->Fallback |= bit; |
| if (oldfallback == 0) { |
| I810_FIREVERTICES(imesa); |
| if (I810_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 (I810_DEBUG & DEBUG_FALLBACKS) |
| fprintf(stderr, "LEAVE FALLBACK %s\n", getFallbackString( bit )); |
| tnl->Driver.Render.Start = i810RenderStart; |
| tnl->Driver.Render.PrimitiveNotify = i810RenderPrimitive; |
| tnl->Driver.Render.Finish = i810RenderFinish; |
| tnl->Driver.Render.BuildVertices = i810BuildVertices; |
| imesa->new_state |= (_I810_NEW_RENDERSTATE|_I810_NEW_VERTEX); |
| } |
| } |
| } |
| |
| |
| /**********************************************************************/ |
| /* Initialization. */ |
| /**********************************************************************/ |
| |
| |
| void i810InitTriFuncs( GLcontext *ctx ) |
| { |
| TNLcontext *tnl = TNL_CONTEXT(ctx); |
| static int firsttime = 1; |
| |
| if (firsttime) { |
| init_rast_tab(); |
| firsttime = 0; |
| } |
| |
| tnl->Driver.RunPipeline = i810RunPipeline; |
| tnl->Driver.Render.Start = i810RenderStart; |
| tnl->Driver.Render.Finish = i810RenderFinish; |
| tnl->Driver.Render.PrimitiveNotify = i810RenderPrimitive; |
| tnl->Driver.Render.ResetLineStipple = _swrast_ResetLineStipple; |
| tnl->Driver.Render.BuildVertices = i810BuildVertices; |
| } |