diff options
Diffstat (limited to 'xc/lib/GL/mesa/src/drv/ffb/ffb_tris.c')
| -rw-r--r-- | xc/lib/GL/mesa/src/drv/ffb/ffb_tris.c | 946 |
1 files changed, 0 insertions, 946 deletions
diff --git a/xc/lib/GL/mesa/src/drv/ffb/ffb_tris.c b/xc/lib/GL/mesa/src/drv/ffb/ffb_tris.c deleted file mode 100644 index 63113f09c..000000000 --- a/xc/lib/GL/mesa/src/drv/ffb/ffb_tris.c +++ /dev/null @@ -1,946 +0,0 @@ -/* $XFree86: xc/lib/GL/mesa/src/drv/ffb/ffb_tris.c,v 1.3 2002/10/30 12:51:28 alanh Exp $ - * - * GLX Hardware Device Driver for Sun Creator/Creator3D - * Copyright (C) 2000, 2001 David S. Miller - * - * 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 - * DAVID MILLER, 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. - * - * - * David S. Miller <davem@redhat.com> - */ - -#include "glheader.h" -#include "mtypes.h" -#include "macros.h" -#include "mmath.h" -#include "swrast/swrast.h" -#include "swrast_setup/swrast_setup.h" -#include "swrast/s_context.h" -#include "tnl/t_context.h" -#include "tnl/t_pipeline.h" - -#include "ffb_context.h" -#include "ffb_tris.h" -#include "ffb_lines.h" -#include "ffb_lock.h" -#include "ffb_points.h" -#include "ffb_state.h" -#include "ffb_vb.h" - -#undef TRI_DEBUG -#undef FFB_RENDER_TRACE -#undef STATE_TRACE - -#ifdef TRI_DEBUG -static void ffb_print_vertex(const ffb_vertex *v) -{ - fprintf(stderr, "Vertex @(%p): " - "X[%f] Y[%f] Z[%f]\n", - v, v->x, v->y, v->z); - fprintf(stderr, "Vertex @(%p): " - "A[%f] R[%f] G[%f] B[%f]\n", - v, - v->color[0].alpha, - v->color[0].red, - v->color[0].green, - v->color[0].blue); -} -#define FFB_DUMP_VERTEX(V) ffb_print_vertex(V) -#else -#define FFB_DUMP_VERTEX(V) do { } while(0) -#endif - -#define FFB_ALPHA_BIT 0x01 -#define FFB_FLAT_BIT 0x02 -#define FFB_TRI_CULL_BIT 0x04 -#define MAX_FFB_RENDER_FUNCS 0x08 - -/*********************************************************************** - * Build low-level triangle/quad rasterize functions * - ***********************************************************************/ - -#define FFB_TRI_FLAT_BIT 0x01 -#define FFB_TRI_ALPHA_BIT 0x02 -/*#define FFB_TRI_CULL_BIT 0x04*/ - -static ffb_tri_func ffb_tri_tab[0x8]; -static ffb_quad_func ffb_quad_tab[0x8]; - -#define IND (0) -#define TAG(x) x -#include "ffb_tritmp.h" - -#define IND (FFB_TRI_FLAT_BIT) -#define TAG(x) x##_flat -#include "ffb_tritmp.h" - -#define IND (FFB_TRI_CULL_BIT) -#define TAG(x) x##_cull -#include "ffb_tritmp.h" - -#define IND (FFB_TRI_CULL_BIT|FFB_TRI_FLAT_BIT) -#define TAG(x) x##_cull_flat -#include "ffb_tritmp.h" - -#define IND (FFB_TRI_ALPHA_BIT) -#define TAG(x) x##_alpha -#include "ffb_tritmp.h" - -#define IND (FFB_TRI_ALPHA_BIT|FFB_TRI_FLAT_BIT) -#define TAG(x) x##_alpha_flat -#include "ffb_tritmp.h" - -#define IND (FFB_TRI_ALPHA_BIT|FFB_TRI_CULL_BIT) -#define TAG(x) x##_alpha_cull -#include "ffb_tritmp.h" - -#define IND (FFB_TRI_ALPHA_BIT|FFB_TRI_CULL_BIT|FFB_TRI_FLAT_BIT) -#define TAG(x) x##_alpha_cull_flat -#include "ffb_tritmp.h" - -static void init_tri_tab(void) -{ - ffb_init(); - ffb_init_flat(); - ffb_init_cull(); - ffb_init_cull_flat(); - ffb_init_alpha(); - ffb_init_alpha_flat(); - ffb_init_alpha_cull(); - ffb_init_alpha_cull_flat(); -} - -/* Build a SWvertex from a hardware vertex. */ -static void ffb_translate_vertex(GLcontext *ctx, const ffb_vertex *src, - SWvertex *dst) -{ - ffbContextPtr fmesa = FFB_CONTEXT(ctx); - GLfloat *m = ctx->Viewport._WindowMap.m; - const GLfloat sx = m[0]; - const GLfloat sy = m[5]; - const GLfloat sz = m[10]; - const GLfloat tx = m[12]; - const GLfloat ty = m[13]; - const GLfloat tz = m[14]; - - dst->win[0] = sx * src->x + tx; - dst->win[1] = sy * src->y + ty; - dst->win[2] = sz * src->z + tz; - dst->win[3] = 1.0; - - dst->color[0] = FFB_UBYTE_FROM_COLOR(src->color[0].red); - dst->color[1] = FFB_UBYTE_FROM_COLOR(src->color[0].green); - dst->color[2] = FFB_UBYTE_FROM_COLOR(src->color[0].blue); - dst->color[3] = FFB_UBYTE_FROM_COLOR(src->color[0].alpha); -} - -/*********************************************************************** - * Build fallback triangle/quad rasterize functions * - ***********************************************************************/ - -static void ffb_fallback_triangle(GLcontext *ctx, ffb_vertex *v0, - ffb_vertex *v1, ffb_vertex *v2) -{ - SWvertex v[3]; - - ffb_translate_vertex(ctx, v0, &v[0]); - ffb_translate_vertex(ctx, v1, &v[1]); - ffb_translate_vertex(ctx, v2, &v[2]); - - _swrast_Triangle(ctx, &v[0], &v[1], &v[2]); -} - -static void ffb_fallback_quad(GLcontext *ctx, - ffb_vertex *v0, ffb_vertex *v1, - ffb_vertex *v2, ffb_vertex *v3) -{ - SWvertex v[4]; - - ffb_translate_vertex(ctx, v0, &v[0]); - ffb_translate_vertex(ctx, v1, &v[1]); - ffb_translate_vertex(ctx, v2, &v[2]); - ffb_translate_vertex(ctx, v3, &v[3]); - - _swrast_Quad(ctx, &v[0], &v[1], &v[2], &v[3]); -} - -void ffb_fallback_line(GLcontext *ctx, ffb_vertex *v0, ffb_vertex *v1) -{ - SWvertex v[2]; - - ffb_translate_vertex(ctx, v0, &v[0]); - ffb_translate_vertex(ctx, v1, &v[1]); - - _swrast_Line(ctx, &v[0], &v[1]); -} - -void ffb_fallback_point(GLcontext *ctx, ffb_vertex *v0) -{ - SWvertex v[1]; - - ffb_translate_vertex(ctx, v0, &v[0]); - - _swrast_Point(ctx, &v[0]); -} - -/*********************************************************************** - * Rasterization functions for culled tris/quads * - ***********************************************************************/ - -static void ffb_nodraw_triangle(GLcontext *ctx, ffb_vertex *v0, - ffb_vertex *v1, ffb_vertex *v2) -{ - (void) (ctx && v0 && v1 && v2); -} - -static void ffb_nodraw_quad(GLcontext *ctx, - ffb_vertex *v0, ffb_vertex *v1, - ffb_vertex *v2, ffb_vertex *v3) -{ - (void) (ctx && v0 && v1 && v2 && v3); -} - -static void ffb_update_cullsign(GLcontext *ctx) -{ - GLfloat backface_sign = 1; - - switch (ctx->Polygon.CullFaceMode) { - case GL_BACK: - if (ctx->Polygon.FrontFace==GL_CCW) - backface_sign = -1; - break; - - case GL_FRONT: - if (ctx->Polygon.FrontFace!=GL_CCW) - backface_sign = -1; - break; - - default: - break; - }; - - FFB_CONTEXT(ctx)->backface_sign = backface_sign; -} - -/*********************************************************************** - * Choose triangle/quad rasterize functions * - ***********************************************************************/ - -void ffbChooseTriangleState(GLcontext *ctx) -{ - ffbContextPtr fmesa = FFB_CONTEXT(ctx); - GLuint flags = ctx->_TriangleCaps; - GLuint ind = 0; - - if (flags & DD_TRI_SMOOTH) { - fmesa->draw_tri = ffb_fallback_triangle; - fmesa->draw_quad = ffb_fallback_quad; - return; - } - - if (flags & DD_FLATSHADE) - ind |= FFB_TRI_FLAT_BIT; - - if (ctx->Polygon.CullFlag) { - if (ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK) { - fmesa->draw_tri = ffb_nodraw_triangle; - fmesa->draw_quad = ffb_nodraw_quad; - return; - } - - ind |= FFB_TRI_CULL_BIT; - ffb_update_cullsign(ctx); - } else - FFB_CONTEXT(ctx)->backface_sign = 0; - - /* If blending or the alpha test is enabled we need to - * provide alpha components to the chip, else we can - * do without it and thus feed vertex data to the chip - * more efficiently. - */ - if (ctx->Color.BlendEnabled || ctx->Color.AlphaEnabled) - ind |= FFB_TRI_ALPHA_BIT; - - fmesa->draw_tri = ffb_tri_tab[ind]; - fmesa->draw_quad = ffb_quad_tab[ind]; -} - -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 -}; - -static void ffbRenderPrimitive(GLcontext *ctx, GLenum prim); -static void ffbRasterPrimitive(GLcontext *ctx, GLenum rprim); - -/*********************************************************************** - * Build render functions from dd templates * - ***********************************************************************/ - -#define FFB_OFFSET_BIT 0x01 -#define FFB_TWOSIDE_BIT 0x02 -#define FFB_UNFILLED_BIT 0x04 -#define FFB_MAX_TRIFUNC 0x08 - -static struct { - triangle_func triangle; - quad_func quad; -} rast_tab[FFB_MAX_TRIFUNC]; - -#define DO_OFFSET (IND & FFB_OFFSET_BIT) -#define DO_UNFILLED (IND & FFB_UNFILLED_BIT) -#define DO_TWOSIDE (IND & FFB_TWOSIDE_BIT) -#define DO_FLAT 0 -#define DO_QUAD 1 -#define DO_FULL_QUAD 1 -#define DO_TRI 1 -#define DO_LINE 0 -#define DO_POINTS 0 - -#define QUAD( a, b, c, d ) fmesa->draw_quad( ctx, a, b, c, d ) -#define TRI( a, b, c ) fmesa->draw_tri( ctx, a, b, c ) -#define LINE( a, b ) fmesa->draw_line( ctx, a, b ) -#define POINT( a ) fmesa->draw_point( ctx, a ) - -#define HAVE_BACK_COLORS 1 -#define HAVE_RGBA 1 -#define HAVE_SPEC 0 -#define HAVE_HW_FLATSHADE 1 -#define VERTEX ffb_vertex -#define TAB rast_tab - -#define UNFILLED_TRI unfilled_tri -#define UNFILLED_QUAD unfilled_quad -#define DEPTH_SCALE (fmesa->depth_scale) -#define VERT_X(_v) (_v->x) -#define VERT_Y(_v) (_v->y) -#define VERT_Z(_v) (_v->z) -#define AREA_IS_CCW( a ) (a < fmesa->ffb_zero) -#define GET_VERTEX(e) (&fmesa->verts[e]) -#define INSANE_VERTICES -#define VERT_SET_Z(v,val) ((v)->z = (val)) -#define VERT_Z_ADD(v,val) ((v)->z += (val)) - -#define VERT_COPY_RGBA1( _v ) _v->color[0] = _v->color[1] -#define VERT_COPY_RGBA( v0, v1 ) v0->color[0] = v1->color[0] -#define VERT_SAVE_RGBA( idx ) color[idx] = v[idx]->color[0] -#define VERT_RESTORE_RGBA( idx ) v[idx]->color[0] = color[idx] - -#define LOCAL_VARS(n) \ - ffbContextPtr fmesa = FFB_CONTEXT(ctx); \ - __DRIdrawablePrivate *dPriv = fmesa->driDrawable; \ - ffb_color color[n]; \ - (void) color; (void) dPriv; - -/*********************************************************************** - * Helpers for rendering unfilled primitives * - ***********************************************************************/ - -#define RASTERIZE(x) if (fmesa->raster_primitive != reduced_prim[x]) \ - ffbRasterPrimitive( ctx, reduced_prim[x] ) -#define RENDER_PRIMITIVE fmesa->render_primitive -#define TAG(x) x -#include "tnl_dd/t_dd_unfilled.h" - -/*********************************************************************** - * Generate GL render functions * - ***********************************************************************/ - -#define IND (0) -#define TAG(x) x -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (FFB_OFFSET_BIT) -#define TAG(x) x##_offset -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (FFB_TWOSIDE_BIT) -#define TAG(x) x##_twoside -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (FFB_TWOSIDE_BIT|FFB_OFFSET_BIT) -#define TAG(x) x##_twoside_offset -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (FFB_UNFILLED_BIT) -#define TAG(x) x##_unfilled -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (FFB_OFFSET_BIT|FFB_UNFILLED_BIT) -#define TAG(x) x##_offset_unfilled -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (FFB_TWOSIDE_BIT|FFB_UNFILLED_BIT) -#define TAG(x) x##_twoside_unfilled -#include "tnl_dd/t_dd_tritmp.h" - -#define IND (FFB_TWOSIDE_BIT|FFB_OFFSET_BIT|FFB_UNFILLED_BIT) -#define TAG(x) x##_twoside_offset_unfilled -#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(); -} - -/**********************************************************************/ -/* Render clipped primitives */ -/**********************************************************************/ - -static void ffbRenderClippedPolygon(GLcontext *ctx, const GLuint *elts, GLuint n) -{ - ffbContextPtr fmesa = FFB_CONTEXT(ctx); - TNLcontext *tnl = TNL_CONTEXT(ctx); - struct vertex_buffer *VB = &tnl->vb; - GLuint prim = fmesa->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 ffbRenderClippedLine(GLcontext *ctx, GLuint ii, GLuint jj) -{ - TNLcontext *tnl = TNL_CONTEXT(ctx); - tnl->Driver.Render.Line(ctx, ii, jj); -} - -/**********************************************************************/ -/* Render unclipped begin/end objects */ -/**********************************************************************/ - -static void ffb_vb_noop(GLcontext *ctx, GLuint start, GLuint count, GLuint flags) -{ - (void)(ctx && start && count && flags); -} - -#define ELT(x) x - -#define IND 0 -#define TAG(x) x -#include "ffb_rendertmp.h" - -#define IND (FFB_FLAT_BIT) -#define TAG(x) x##_flat -#include "ffb_rendertmp.h" - -#define IND (FFB_ALPHA_BIT) -#define TAG(x) x##_alpha -#include "ffb_rendertmp.h" - -#define IND (FFB_FLAT_BIT | FFB_ALPHA_BIT) -#define TAG(x) x##_flat_alpha -#include "ffb_rendertmp.h" - -#define IND (FFB_TRI_CULL_BIT) -#define TAG(x) x##_tricull -#include "ffb_rendertmp.h" - -#define IND (FFB_FLAT_BIT | FFB_TRI_CULL_BIT) -#define TAG(x) x##_flat_tricull -#include "ffb_rendertmp.h" - -#define IND (FFB_ALPHA_BIT | FFB_TRI_CULL_BIT) -#define TAG(x) x##_alpha_tricull -#include "ffb_rendertmp.h" - -#define IND (FFB_FLAT_BIT | FFB_ALPHA_BIT | FFB_TRI_CULL_BIT) -#define TAG(x) x##_flat_alpha_tricull -#include "ffb_rendertmp.h" - -#undef ELT -#define ELT(x) elt[x] - -#define IND 0 -#define TAG(x) x##_elt -#include "ffb_rendertmp.h" - -#define IND (FFB_FLAT_BIT) -#define TAG(x) x##_flat_elt -#include "ffb_rendertmp.h" - -#define IND (FFB_ALPHA_BIT) -#define TAG(x) x##_alpha_elt -#include "ffb_rendertmp.h" - -#define IND (FFB_FLAT_BIT | FFB_ALPHA_BIT) -#define TAG(x) x##_flat_alpha_elt -#include "ffb_rendertmp.h" - -#define IND (FFB_TRI_CULL_BIT) -#define TAG(x) x##_tricull_elt -#include "ffb_rendertmp.h" - -#define IND (FFB_FLAT_BIT | FFB_TRI_CULL_BIT) -#define TAG(x) x##_flat_tricull_elt -#include "ffb_rendertmp.h" - -#define IND (FFB_ALPHA_BIT | FFB_TRI_CULL_BIT) -#define TAG(x) x##_alpha_tricull_elt -#include "ffb_rendertmp.h" - -#define IND (FFB_FLAT_BIT | FFB_ALPHA_BIT | FFB_TRI_CULL_BIT) -#define TAG(x) x##_flat_alpha_tricull_elt -#include "ffb_rendertmp.h" - -static void *render_tabs[MAX_FFB_RENDER_FUNCS]; -static void *render_tabs_elt[MAX_FFB_RENDER_FUNCS]; - -static void init_render_tab(void) -{ - int i; - - render_tabs[0] = render_tab; - render_tabs[FFB_FLAT_BIT] = render_tab_flat; - render_tabs[FFB_ALPHA_BIT] = render_tab_alpha; - render_tabs[FFB_FLAT_BIT|FFB_ALPHA_BIT] = render_tab_flat_alpha; - render_tabs[FFB_TRI_CULL_BIT] = render_tab_tricull; - render_tabs[FFB_FLAT_BIT|FFB_TRI_CULL_BIT] = render_tab_flat_tricull; - render_tabs[FFB_ALPHA_BIT|FFB_TRI_CULL_BIT] = render_tab_alpha_tricull; - render_tabs[FFB_FLAT_BIT|FFB_ALPHA_BIT|FFB_TRI_CULL_BIT] = - render_tab_flat_alpha_tricull; - - render_tabs_elt[0] = render_tab_elt; - render_tabs_elt[FFB_FLAT_BIT] = render_tab_flat_elt; - render_tabs_elt[FFB_ALPHA_BIT] = render_tab_alpha_elt; - render_tabs_elt[FFB_FLAT_BIT|FFB_ALPHA_BIT] = render_tab_flat_alpha_elt; - render_tabs_elt[FFB_TRI_CULL_BIT] = render_tab_tricull_elt; - render_tabs_elt[FFB_FLAT_BIT|FFB_TRI_CULL_BIT] = render_tab_flat_tricull_elt; - render_tabs_elt[FFB_ALPHA_BIT|FFB_TRI_CULL_BIT] = render_tab_alpha_tricull_elt; - render_tabs_elt[FFB_FLAT_BIT|FFB_ALPHA_BIT|FFB_TRI_CULL_BIT] = - render_tab_flat_alpha_tricull_elt; - - for (i = 0; i < MAX_FFB_RENDER_FUNCS; i++) { - render_func *rf = render_tabs[i]; - render_func *rfe = render_tabs_elt[i]; - - if (i & FFB_TRI_CULL_BIT) { - int from_idx = (i & ~FFB_TRI_CULL_BIT); - render_func *rf_from = render_tabs[from_idx]; - render_func *rfe_from = render_tabs_elt[from_idx]; - int j; - - for (j = GL_POINTS; j < GL_TRIANGLES; j++) { - rf[j] = rf_from[j]; - rfe[j] = rfe_from[j]; - } - } - } -} - -/**********************************************************************/ -/* Choose render functions */ -/**********************************************************************/ - -#ifdef FFB_RENDER_TRACE -static void ffbPrintRenderFlags(GLuint index, GLuint render_index) -{ - fprintf(stderr, - "ffbChooseRenderState: " - "index(%s%s%s) " - "render_index(%s%s%s)\n", - ((index & FFB_TWOSIDE_BIT) ? "twoside " : ""), - ((index & FFB_OFFSET_BIT) ? "offset " : ""), - ((index & FFB_UNFILLED_BIT) ? "unfilled " : ""), - ((render_index & FFB_FLAT_BIT) ? "flat " : ""), - ((render_index & FFB_ALPHA_BIT) ? "alpha " : ""), - ((render_index & FFB_TRI_CULL_BIT) ? "tricull " : "")); -} -#endif - -void ffbChooseRenderState(GLcontext *ctx) -{ - GLuint flags = ctx->_TriangleCaps; - TNLcontext *tnl = TNL_CONTEXT(ctx); - GLuint index = 0; - - /* Per-primitive fallbacks and the selection of fmesa->draw_* are - * handled elsewhere. - */ - if (flags & DD_TRI_LIGHT_TWOSIDE) - index |= FFB_TWOSIDE_BIT; - - if (flags & DD_TRI_OFFSET) - index |= FFB_OFFSET_BIT; - - if (flags & DD_TRI_UNFILLED) - index |= FFB_UNFILLED_BIT; - - tnl->Driver.Render.Triangle = rast_tab[index].triangle; - tnl->Driver.Render.Quad = rast_tab[index].quad; - - if (index == 0) { - GLuint render_index = 0; - - if (flags & DD_FLATSHADE) - render_index |= FFB_FLAT_BIT; - - if (ctx->Color.BlendEnabled || ctx->Color.AlphaEnabled) - render_index |= FFB_ALPHA_BIT; - - if (ctx->Polygon.CullFlag) - render_index |= FFB_TRI_CULL_BIT; - -#ifdef FFB_RENDER_TRACE - ffbPrintRenderFlags(index, render_index); -#endif - tnl->Driver.Render.PrimTabVerts = render_tabs[render_index]; - tnl->Driver.Render.PrimTabElts = render_tabs_elt[render_index]; - } else { -#ifdef FFB_RENDER_TRACE - ffbPrintRenderFlags(index, 0); -#endif - tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts; - tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts; - } - - tnl->Driver.Render.ClippedPolygon = ffbRenderClippedPolygon; - tnl->Driver.Render.ClippedLine = ffbRenderClippedLine; -} - -static void ffbRunPipeline(GLcontext *ctx) -{ - ffbContextPtr fmesa = FFB_CONTEXT(ctx); - - if (fmesa->bad_fragment_attrs == 0 && - fmesa->new_gl_state) { - if (fmesa->new_gl_state & _FFB_NEW_TRIANGLE) - ffbChooseTriangleState(ctx); - if (fmesa->new_gl_state & _FFB_NEW_LINE) - ffbChooseLineState(ctx); - if (fmesa->new_gl_state & _FFB_NEW_POINT) - ffbChoosePointState(ctx); - if (fmesa->new_gl_state & _FFB_NEW_RENDER) - ffbChooseRenderState(ctx); - if (fmesa->new_gl_state & _FFB_NEW_VERTEX) - ffbChooseVertexState(ctx); - - fmesa->new_gl_state = 0; - } - - _tnl_run_pipeline(ctx); -} - -static void ffbRenderStart(GLcontext *ctx) -{ - ffbContextPtr fmesa = FFB_CONTEXT(ctx); - - LOCK_HARDWARE(fmesa); - fmesa->hw_locked = 1; - - if (fmesa->state_dirty != 0) - ffbSyncHardware(fmesa); -} - -static void ffbRenderFinish(GLcontext *ctx) -{ - ffbContextPtr fmesa = FFB_CONTEXT(ctx); - - UNLOCK_HARDWARE(fmesa); - fmesa->hw_locked = 0; -} - -/* Even when doing full software rendering we need to - * wrap render{start,finish} so that the hardware is kept - * in sync (because multipass rendering changes the write - * buffer etc.) - */ -static void ffbSWRenderStart(GLcontext *ctx) -{ - ffbContextPtr fmesa = FFB_CONTEXT(ctx); - - LOCK_HARDWARE(fmesa); - fmesa->hw_locked = 1; - - if (fmesa->state_dirty != 0) - ffbSyncHardware(fmesa); -} - -static void ffbSWRenderFinish(GLcontext *ctx) -{ - ffbContextPtr fmesa = FFB_CONTEXT(ctx); - - UNLOCK_HARDWARE(fmesa); - fmesa->hw_locked = 0; -} - -static void ffbRasterPrimitive(GLcontext *ctx, GLenum rprim) -{ - ffbContextPtr fmesa = FFB_CONTEXT(ctx); - GLuint drawop, fbc, ppc; - int do_sw = 0; - - fmesa->raster_primitive = rprim; - - drawop = fmesa->drawop; - fbc = fmesa->fbc; - ppc = fmesa->ppc & ~(FFB_PPC_ZS_MASK | FFB_PPC_CS_MASK); - -#ifdef STATE_TRACE - fprintf(stderr, - "ffbReducedPrimitiveChange: rprim(%d) ", rprim); -#endif - switch(rprim) { - case GL_POINTS: -#ifdef STATE_TRACE - fprintf(stderr, "GL_POINTS "); -#endif - if (fmesa->draw_point == ffb_fallback_point) { - do_sw = 1; - break; - } - - if (ctx->Point.SmoothFlag) { - ppc |= (FFB_PPC_ZS_VAR | FFB_PPC_CS_CONST); - drawop = FFB_DRAWOP_AADOT; - } else { - ppc |= (FFB_PPC_ZS_CONST | FFB_PPC_CS_CONST); - drawop = FFB_DRAWOP_DOT; - } - break; - - case GL_LINES: -#ifdef STATE_TRACE - fprintf(stderr, "GL_LINES "); -#endif - if (fmesa->draw_line == ffb_fallback_line) { - do_sw = 1; - break; - } - - if (ctx->_TriangleCaps & DD_FLATSHADE) { - ppc |= FFB_PPC_ZS_VAR | FFB_PPC_CS_CONST; - } else { - ppc |= FFB_PPC_ZS_VAR | FFB_PPC_CS_VAR; - } - if (ctx->Line.SmoothFlag) - drawop = FFB_DRAWOP_AALINE; - else - drawop = FFB_DRAWOP_DDLINE; - break; - - case GL_TRIANGLES: -#ifdef STATE_TRACE - fprintf(stderr, "GL_POLYGON "); -#endif - if (fmesa->draw_tri == ffb_fallback_triangle) { - do_sw = 1; - break; - } - - ppc &= ~FFB_PPC_APE_MASK; - if (ctx->Polygon.StippleFlag) - ppc |= FFB_PPC_APE_ENABLE; - else - ppc |= FFB_PPC_APE_DISABLE; - - if (ctx->_TriangleCaps & DD_FLATSHADE) { - ppc |= FFB_PPC_ZS_VAR | FFB_PPC_CS_CONST; - } else { - ppc |= FFB_PPC_ZS_VAR | FFB_PPC_CS_VAR; - } - drawop = FFB_DRAWOP_TRIANGLE; - break; - - default: -#ifdef STATE_TRACE - fprintf(stderr, "unknown %d!\n", rprim); -#endif - return; - }; - -#ifdef STATE_TRACE - fprintf(stderr, "do_sw(%d) ", do_sw); -#endif - if (do_sw != 0) { - fbc &= ~(FFB_FBC_WB_C); - fbc &= ~(FFB_FBC_ZE_MASK | FFB_FBC_RGBE_MASK); - fbc |= FFB_FBC_ZE_OFF | FFB_FBC_RGBE_MASK; - ppc &= ~(FFB_PPC_XS_MASK | FFB_PPC_ABE_MASK | - FFB_PPC_DCE_MASK | FFB_PPC_APE_MASK); - ppc |= (FFB_PPC_ZS_VAR | FFB_PPC_CS_VAR | FFB_PPC_XS_WID | - FFB_PPC_ABE_DISABLE | FFB_PPC_DCE_DISABLE | - FFB_PPC_APE_DISABLE); - } else { - fbc |= FFB_FBC_WB_C; - fbc &= ~(FFB_FBC_RGBE_MASK); - fbc |= FFB_FBC_RGBE_MASK; - ppc &= ~(FFB_PPC_ABE_MASK | FFB_PPC_XS_MASK); - if (ctx->Color.BlendEnabled) { - if ((rprim == GL_POINTS && !ctx->Point.SmoothFlag) || - (rprim != GL_POINTS && ctx->_TriangleCaps & DD_FLATSHADE)) - ppc |= FFB_PPC_ABE_ENABLE | FFB_PPC_XS_CONST; - else - ppc |= FFB_PPC_ABE_ENABLE | FFB_PPC_XS_VAR; - } else { - ppc |= FFB_PPC_ABE_DISABLE | FFB_PPC_XS_WID; - } - } -#ifdef STATE_TRACE - fprintf(stderr, "fbc(%08x) ppc(%08x)\n", fbc, ppc); -#endif - - FFBFifo(fmesa, 4); - if (fmesa->drawop != drawop) - fmesa->regs->drawop = fmesa->drawop = drawop; - if (fmesa->fbc != fbc) - fmesa->regs->fbc = fmesa->fbc = fbc; - if (fmesa->ppc != ppc) - fmesa->regs->ppc = fmesa->ppc = ppc; - if (do_sw != 0) { - fmesa->regs->cmp = - (fmesa->cmp & ~(0xff<<16)) | (0x80 << 16); - } else - fmesa->regs->cmp = fmesa->cmp; -} - -static void ffbRenderPrimitive(GLcontext *ctx, GLenum prim) -{ - ffbContextPtr fmesa = FFB_CONTEXT(ctx); - GLuint rprim = reduced_prim[prim]; - - fmesa->render_primitive = prim; - - if (rprim == GL_TRIANGLES && (ctx->_TriangleCaps & DD_TRI_UNFILLED)) - return; - - if (fmesa->raster_primitive != rprim) { - ffbRasterPrimitive( ctx, rprim ); - } -} - - - - -/**********************************************************************/ -/* Transition to/from hardware rasterization. */ -/**********************************************************************/ - -static char *fallbackStrings[] = { - "Fog enabled", - "Blend function", - "Blend ROP", - "Blend equation", - "Stencil", - "Texture", - "LIBGL_SOFTWARE_RENDERING" -}; - -static char *getFallbackString(GLuint bit) -{ - int i = 0; - - while (bit > 1) { - i++; - bit >>= 1; - } - return fallbackStrings[i]; -} - -void ffbFallback( GLcontext *ctx, GLuint bit, GLboolean mode ) -{ - ffbContextPtr fmesa = FFB_CONTEXT(ctx); - TNLcontext *tnl = TNL_CONTEXT(ctx); - GLuint oldfallback = fmesa->bad_fragment_attrs; - - if (mode) { - fmesa->bad_fragment_attrs |= bit; - if (oldfallback == 0) { -/* FFB_FIREVERTICES(fmesa); */ - _swsetup_Wakeup( ctx ); - if (fmesa->debugFallbacks) - fprintf(stderr, "FFB begin software fallback: 0x%x %s\n", - bit, getFallbackString(bit)); - } - } else { - fmesa->bad_fragment_attrs &= ~bit; - if (oldfallback == bit) { - _swrast_flush( ctx ); - - tnl->Driver.Render.Start = ffbRenderStart; - tnl->Driver.Render.PrimitiveNotify = ffbRenderPrimitive; - tnl->Driver.Render.Finish = ffbRenderFinish; - fmesa->new_gl_state = ~0; - - /* Just re-choose everything: - */ - ffbChooseVertexState(ctx); - ffbChooseRenderState(ctx); - ffbChooseTriangleState(ctx); - ffbChooseLineState(ctx); - ffbChoosePointState(ctx); - - if (fmesa->debugFallbacks) - fprintf(stderr, "FFB end software fallback: 0x%x %s\n", - bit, getFallbackString(bit)); - } - } -} - -/**********************************************************************/ -/* Initialization. */ -/**********************************************************************/ - -void ffbDDInitRenderFuncs( GLcontext *ctx ) -{ - TNLcontext *tnl = TNL_CONTEXT(ctx); - SWcontext *swrast = SWRAST_CONTEXT(ctx); - static int firsttime = 1; - - if (firsttime) { - init_rast_tab(); - init_tri_tab(); - init_render_tab(); - firsttime = 0; - } - - tnl->Driver.RunPipeline = ffbRunPipeline; - tnl->Driver.Render.Start = ffbRenderStart; - tnl->Driver.Render.Finish = ffbRenderFinish; - tnl->Driver.Render.PrimitiveNotify = ffbRenderPrimitive; - tnl->Driver.Render.ResetLineStipple = _swrast_ResetLineStipple; - tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts; - tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts; - - swrast->Driver.SpanRenderStart = ffbSWRenderStart; - swrast->Driver.SpanRenderFinish = ffbSWRenderFinish; -} |