diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/r128/r128_tris.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/r128/r128_tris.c | 769 |
1 files changed, 769 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/r128/r128_tris.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/r128/r128_tris.c new file mode 100644 index 000000000..c12ad0ccb --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/r128/r128_tris.c @@ -0,0 +1,769 @@ +/* $XFree86: xc/lib/GL/mesa/src/drv/r128/r128_tris.c,v 1.8 2002/10/30 12:51:43 alanh Exp $ */ /* -*- c-basic-offset: 3 -*- */ +/************************************************************************** + +Copyright 2000, 2001 ATI Technologies Inc., Ontario, Canada, and + 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 "colormac.h" +#include "macros.h" + +#include "swrast/swrast.h" +#include "swrast_setup/swrast_setup.h" +#include "tnl/tnl.h" +#include "tnl/t_context.h" +#include "tnl/t_pipeline.h" + +#include "r128_tris.h" +#include "r128_state.h" +#include "r128_tex.h" +#include "r128_ioctl.h" + +static const GLuint hw_prim[GL_POLYGON+1] = { + R128_CCE_VC_CNTL_PRIM_TYPE_POINT, + R128_CCE_VC_CNTL_PRIM_TYPE_LINE, + R128_CCE_VC_CNTL_PRIM_TYPE_LINE, + R128_CCE_VC_CNTL_PRIM_TYPE_LINE, + R128_CCE_VC_CNTL_PRIM_TYPE_TRI_LIST, + R128_CCE_VC_CNTL_PRIM_TYPE_TRI_LIST, + R128_CCE_VC_CNTL_PRIM_TYPE_TRI_LIST, + R128_CCE_VC_CNTL_PRIM_TYPE_TRI_LIST, + R128_CCE_VC_CNTL_PRIM_TYPE_TRI_LIST, + R128_CCE_VC_CNTL_PRIM_TYPE_TRI_LIST, +}; + +static void r128RasterPrimitive( GLcontext *ctx, GLuint hwprim ); +static void r128RenderPrimitive( GLcontext *ctx, GLenum prim ); + + +/*********************************************************************** + * Emit primitives as inline vertices * + ***********************************************************************/ + +#define HAVE_QUADS 0 +#define HAVE_LINES 1 +#define HAVE_POINTS 1 +#define HAVE_LE32_VERTS 1 +#define CTX_ARG r128ContextPtr rmesa +#define GET_VERTEX_DWORDS() rmesa->vertex_size +#define ALLOC_VERTS( n, size ) r128AllocDmaLow( rmesa, (n), (size) * 4 ) +#undef LOCAL_VARS +#define LOCAL_VARS \ + r128ContextPtr rmesa = R128_CONTEXT(ctx); \ + const char *vertptr = rmesa->verts; +#define VERT(x) (r128Vertex *)(vertptr + ((x) * vertsize * 4)) +#define VERTEX r128Vertex +#undef TAG +#define TAG(x) r128_##x +#include "tnl_dd/t_dd_triemit.h" +#undef TAG +#undef LOCAL_VARS + + +/*********************************************************************** + * Macros for t_dd_tritmp.h to draw basic primitives * + ***********************************************************************/ + +#define TRI( a, b, c ) \ +do { \ + if (DO_FALLBACK) \ + rmesa->draw_tri( rmesa, a, b, c ); \ + else \ + r128_triangle( rmesa, a, b, c ); \ +} while (0) + +#define QUAD( a, b, c, d ) \ +do { \ + if (DO_FALLBACK) { \ + rmesa->draw_tri( rmesa, a, b, d ); \ + rmesa->draw_tri( rmesa, b, c, d ); \ + } else \ + r128_quad( rmesa, a, b, c, d ); \ +} while (0) + +#define LINE( v0, v1 ) \ +do { \ + if (DO_FALLBACK) \ + rmesa->draw_line( rmesa, v0, v1 ); \ + else \ + r128_line( rmesa, v0, v1 ); \ +} while (0) + +#define POINT( v0 ) \ +do { \ + if (DO_FALLBACK) \ + rmesa->draw_point( rmesa, v0 ); \ + else \ + r128_point( rmesa, v0 ); \ +} while (0) + + +/*********************************************************************** + * Build render functions from dd templates * + ***********************************************************************/ + +#define R128_OFFSET_BIT 0x01 +#define R128_TWOSIDE_BIT 0x02 +#define R128_UNFILLED_BIT 0x04 +#define R128_FALLBACK_BIT 0x08 +#define R128_MAX_TRIFUNC 0x10 + + +static struct { + tnl_points_func points; + tnl_line_func line; + tnl_triangle_func triangle; + tnl_quad_func quad; +} rast_tab[R128_MAX_TRIFUNC]; + + +#define DO_FALLBACK (IND & R128_FALLBACK_BIT) +#define DO_OFFSET (IND & R128_OFFSET_BIT) +#define DO_UNFILLED (IND & R128_UNFILLED_BIT) +#define DO_TWOSIDE (IND & R128_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 r128Vertex +#define TAB rast_tab + +#define DEPTH_SCALE rmesa->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) (rmesa->verts + (e * rmesa->vertex_size * sizeof(int))) + +#define VERT_SET_RGBA( v, c ) \ +do { \ + r128_color_t *color = (r128_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) { \ + r128_color_t *spec = (r128_color_t *)&((v0)->ui[specoffset]); \ + UNCLAMPED_FLOAT_TO_UBYTE(spec->red, (c)[0]); \ + UNCLAMPED_FLOAT_TO_UBYTE(spec->green, (c)[1]); \ + UNCLAMPED_FLOAT_TO_UBYTE(spec->blue, (c)[2]); \ + } \ +} while (0) +#define VERT_COPY_SPEC( v0, v1 ) \ +do { \ + if (havespec) { \ + r128_color_t *spec0 = (r128_color_t *)&((v0)->ui[specoffset]); \ + r128_color_t *spec1 = (r128_color_t *)&((v1)->ui[specoffset]); \ + spec0->red = spec1->red; \ + spec0->green = spec1->green; \ + spec0->blue = spec1->blue; \ + } \ +} while (0) + +/* These don't need LE32_TO_CPU() as they are used to save and restore + * colors which are already in the correct format. + */ +#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[specoffset] +#define VERT_RESTORE_SPEC( idx ) if (havespec) v[idx]->ui[specoffset] = spec[idx] + + +#define LOCAL_VARS(n) \ + r128ContextPtr rmesa = R128_CONTEXT(ctx); \ + GLuint color[n], spec[n]; \ + GLuint coloroffset = rmesa->coloroffset; \ + GLuint specoffset = rmesa->specoffset; \ + GLboolean havespec = (rmesa->specoffset != 0); \ + (void) color; (void) spec; (void) specoffset; \ + (void) coloroffset; (void) havespec; + +/*********************************************************************** + * Helpers for rendering unfilled primitives * + ***********************************************************************/ + +#define RASTERIZE(x) if (rmesa->hw_primitive != hw_prim[x]) \ + r128RasterPrimitive( ctx, hw_prim[x] ) +#define RENDER_PRIMITIVE rmesa->render_primitive +#define IND R128_FALLBACK_BIT +#define TAG(x) x +#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 (R128_OFFSET_BIT) +#define TAG(x) x##_offset +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (R128_TWOSIDE_BIT) +#define TAG(x) x##_twoside +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (R128_TWOSIDE_BIT|R128_OFFSET_BIT) +#define TAG(x) x##_twoside_offset +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (R128_UNFILLED_BIT) +#define TAG(x) x##_unfilled +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (R128_OFFSET_BIT|R128_UNFILLED_BIT) +#define TAG(x) x##_offset_unfilled +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (R128_TWOSIDE_BIT|R128_UNFILLED_BIT) +#define TAG(x) x##_twoside_unfilled +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (R128_TWOSIDE_BIT|R128_OFFSET_BIT|R128_UNFILLED_BIT) +#define TAG(x) x##_twoside_offset_unfilled +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (R128_FALLBACK_BIT) +#define TAG(x) x##_fallback +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (R128_OFFSET_BIT|R128_FALLBACK_BIT) +#define TAG(x) x##_offset_fallback +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (R128_TWOSIDE_BIT|R128_FALLBACK_BIT) +#define TAG(x) x##_twoside_fallback +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (R128_TWOSIDE_BIT|R128_OFFSET_BIT|R128_FALLBACK_BIT) +#define TAG(x) x##_twoside_offset_fallback +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (R128_UNFILLED_BIT|R128_FALLBACK_BIT) +#define TAG(x) x##_unfilled_fallback +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (R128_OFFSET_BIT|R128_UNFILLED_BIT|R128_FALLBACK_BIT) +#define TAG(x) x##_offset_unfilled_fallback +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (R128_TWOSIDE_BIT|R128_UNFILLED_BIT|R128_FALLBACK_BIT) +#define TAG(x) x##_twoside_unfilled_fallback +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (R128_TWOSIDE_BIT|R128_OFFSET_BIT|R128_UNFILLED_BIT| \ + R128_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 +r128_fallback_tri( r128ContextPtr rmesa, + r128Vertex *v0, + r128Vertex *v1, + r128Vertex *v2 ) +{ + GLcontext *ctx = rmesa->glCtx; + SWvertex v[3]; + _swsetup_Translate( ctx, v0, &v[0] ); + _swsetup_Translate( ctx, v1, &v[1] ); + _swsetup_Translate( ctx, v2, &v[2] ); + _swrast_Triangle( ctx, &v[0], &v[1], &v[2] ); +} + + +static void +r128_fallback_line( r128ContextPtr rmesa, + r128Vertex *v0, + r128Vertex *v1 ) +{ + GLcontext *ctx = rmesa->glCtx; + SWvertex v[2]; + _swsetup_Translate( ctx, v0, &v[0] ); + _swsetup_Translate( ctx, v1, &v[1] ); + _swrast_Line( ctx, &v[0], &v[1] ); +} + + +static void +r128_fallback_point( r128ContextPtr rmesa, + r128Vertex *v0 ) +{ + GLcontext *ctx = rmesa->glCtx; + SWvertex v[1]; + _swsetup_Translate( ctx, v0, &v[0] ); + _swrast_Point( ctx, &v[0] ); +} + + + +/**********************************************************************/ +/* Render unclipped begin/end objects */ +/**********************************************************************/ + +#define RENDER_POINTS( start, count ) \ + for ( ; start < count ; start++) \ + r128_point( rmesa, VERT(start) ) +#define RENDER_LINE( v0, v1 ) \ + r128_line( rmesa, VERT(v0), VERT(v1) ) +#define RENDER_TRI( v0, v1, v2 ) \ + r128_triangle( rmesa, VERT(v0), VERT(v1), VERT(v2) ) +#define RENDER_QUAD( v0, v1, v2, v3 ) \ + r128_quad( rmesa, VERT(v0), VERT(v1), VERT(v2), VERT(v3) ) +#define INIT(x) do { \ + if (0) fprintf(stderr, "%s\n", __FUNCTION__); \ + r128RenderPrimitive( ctx, x ); \ +} while (0) +#undef LOCAL_VARS +#define LOCAL_VARS \ + r128ContextPtr rmesa = R128_CONTEXT(ctx); \ + const GLuint vertsize = rmesa->vertex_size; \ + const char *vertptr = (char *)rmesa->verts; \ + 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) r128_##x##_verts +#include "tnl/t_vb_rendertmp.h" +#undef ELT +#undef TAG +#define TAG(x) r128_##x##_elts +#define ELT(x) elt[x] +#include "tnl/t_vb_rendertmp.h" + + +/**********************************************************************/ +/* Choose render functions */ +/**********************************************************************/ + +#define POINT_FALLBACK (DD_POINT_SMOOTH) +#define LINE_FALLBACK (DD_LINE_STIPPLE|DD_LINE_SMOOTH) +#define TRI_FALLBACK (DD_TRI_SMOOTH) +#define ANY_FALLBACK_FLAGS (POINT_FALLBACK|LINE_FALLBACK|TRI_FALLBACK) +#define ANY_RASTER_FLAGS (DD_TRI_LIGHT_TWOSIDE|DD_TRI_OFFSET|DD_TRI_UNFILLED) +#define _R128_NEW_RENDER_STATE (ANY_FALLBACK_FLAGS | ANY_RASTER_FLAGS) + +static void r128ChooseRenderState(GLcontext *ctx) +{ + r128ContextPtr rmesa = R128_CONTEXT(ctx); + GLuint flags = ctx->_TriangleCaps; + GLuint index = 0; + + if (flags & (ANY_RASTER_FLAGS|ANY_FALLBACK_FLAGS)) { + rmesa->draw_point = r128_point; + rmesa->draw_line = r128_line; + rmesa->draw_tri = r128_triangle; + + if (flags & ANY_RASTER_FLAGS) { + if (flags & DD_TRI_LIGHT_TWOSIDE) index |= R128_TWOSIDE_BIT; + if (flags & DD_TRI_OFFSET) index |= R128_OFFSET_BIT; + if (flags & DD_TRI_UNFILLED) index |= R128_UNFILLED_BIT; + } + + /* Hook in fallbacks for specific primitives. + */ + if (flags & (POINT_FALLBACK|LINE_FALLBACK|TRI_FALLBACK)) { + if (flags & POINT_FALLBACK) rmesa->draw_point = r128_fallback_point; + if (flags & LINE_FALLBACK) rmesa->draw_line = r128_fallback_line; + if (flags & TRI_FALLBACK) rmesa->draw_tri = r128_fallback_tri; + index |= R128_FALLBACK_BIT; + } + } + + if (index != rmesa->RenderIndex) { + TNLcontext *tnl = TNL_CONTEXT(ctx); + tnl->Driver.Render.Points = rast_tab[index].points; + tnl->Driver.Render.Line = rast_tab[index].line; + tnl->Driver.Render.ClippedLine = 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 = r128_render_tab_verts; + tnl->Driver.Render.PrimTabElts = r128_render_tab_elts; + tnl->Driver.Render.ClippedPolygon = r128_fast_clipped_poly; + } else { + tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts; + tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts; + tnl->Driver.Render.ClippedPolygon = _tnl_RenderClippedPolygon; + } + + rmesa->RenderIndex = index; + } +} + +/**********************************************************************/ +/* Validate state at pipeline start */ +/**********************************************************************/ + +static void r128RunPipeline( GLcontext *ctx ) +{ + r128ContextPtr rmesa = R128_CONTEXT(ctx); + + if (rmesa->new_state || rmesa->NewGLState & _NEW_TEXTURE) + r128DDUpdateHWState( ctx ); + + if (!rmesa->Fallback && rmesa->NewGLState) { + if (rmesa->NewGLState & _R128_NEW_RENDER_STATE) + r128ChooseRenderState( ctx ); + + rmesa->NewGLState = 0; + } + + _tnl_run_pipeline( ctx ); +} + +/**********************************************************************/ +/* High level hooks for t_vb_render.c */ +/**********************************************************************/ + +/* This is called when Mesa switches between rendering triangle + * primitives (such as GL_POLYGON, GL_QUADS, GL_TRIANGLE_STRIP, etc), + * and lines, points and bitmaps. + * + * As the r128 uses triangles to render lines and points, it is + * necessary to turn off hardware culling when rendering these + * primitives. + */ + +static void r128RasterPrimitive( GLcontext *ctx, GLuint hwprim ) +{ + r128ContextPtr rmesa = R128_CONTEXT(ctx); + + rmesa->setup.dp_gui_master_cntl_c &= ~R128_GMC_BRUSH_NONE; + + if ( ctx->Polygon.StippleFlag && hwprim == GL_TRIANGLES ) { + rmesa->setup.dp_gui_master_cntl_c |= R128_GMC_BRUSH_32x32_MONO_FG_LA; + } + else { + rmesa->setup.dp_gui_master_cntl_c |= R128_GMC_BRUSH_SOLID_COLOR; + } + + rmesa->new_state |= R128_NEW_CONTEXT; + rmesa->dirty |= R128_UPLOAD_CONTEXT; + + if (rmesa->hw_primitive != hwprim) { + FLUSH_BATCH( rmesa ); + rmesa->hw_primitive = hwprim; + } +} + +static void r128RenderPrimitive( GLcontext *ctx, GLenum prim ) +{ + r128ContextPtr rmesa = R128_CONTEXT(ctx); + GLuint hw = hw_prim[prim]; + rmesa->render_primitive = prim; + if (prim >= GL_TRIANGLES && (ctx->_TriangleCaps & DD_TRI_UNFILLED)) + return; + r128RasterPrimitive( ctx, hw ); +} + +#define EMIT_ATTR( ATTR, STYLE, VF, SIZE ) \ +do { \ + rmesa->vertex_attrs[rmesa->vertex_attr_count].attrib = (ATTR); \ + rmesa->vertex_attrs[rmesa->vertex_attr_count].format = (STYLE); \ + rmesa->vertex_attr_count++; \ + vc_frmt |= (VF); \ + offset += (SIZE); \ +} while (0) + +#define EMIT_PAD( SIZE ) \ +do { \ + rmesa->vertex_attrs[rmesa->vertex_attr_count].attrib = 0; \ + rmesa->vertex_attrs[rmesa->vertex_attr_count].format = EMIT_PAD; \ + rmesa->vertex_attrs[rmesa->vertex_attr_count].offset = (SIZE); \ + rmesa->vertex_attr_count++; \ + offset += (SIZE); \ +} while (0) + +static void r128RenderStart( GLcontext *ctx ) +{ + r128ContextPtr rmesa = R128_CONTEXT(ctx); + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + GLuint index = tnl->render_inputs; + GLuint vc_frmt = 0; + GLboolean fallback_projtex = GL_FALSE; + GLuint offset = 0; + + /* Important: */ + VB->AttribPtr[VERT_ATTRIB_POS] = VB->NdcPtr; + rmesa->vertex_attr_count = 0; + rmesa->specoffset = 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, R128_CCE_VC_FRMT_RHW, 16 ); + else + EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_3F_VIEWPORT, 0, 12 ); + + rmesa->coloroffset = offset; +#if MESA_LITTLE_ENDIAN + EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4UB_4F_BGRA, + R128_CCE_VC_FRMT_DIFFUSE_ARGB, 4 ); +#else + EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4UB_4F_ARGB, + R128_CCE_VC_FRMT_DIFFUSE_ARGB, 4 ); +#endif + + if ( index & (_TNL_BIT_COLOR1|_TNL_BIT_FOG) ) { +#if MESA_LITTLE_ENDIAN + if ( index & _TNL_BIT_COLOR1) { + rmesa->specoffset = offset; + EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_3UB_3F_RGB, + R128_CCE_VC_FRMT_SPEC_FRGB, 3 ); + } else + EMIT_PAD( 3 ); + + if (index & _TNL_BIT_FOG) + EMIT_ATTR( _TNL_ATTRIB_FOG, EMIT_1UB_1F, R128_CCE_VC_FRMT_SPEC_FRGB, + 1 ); + else + EMIT_PAD( 1 ); +#else + if (index & _TNL_BIT_FOG) + EMIT_ATTR( _TNL_ATTRIB_FOG, EMIT_1UB_1F, R128_CCE_VC_FRMT_SPEC_FRGB, + 1 ); + else + EMIT_PAD( 1 ); + + if ( index & _TNL_BIT_COLOR1) { + rmesa->specoffset = offset; + EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_3UB_3F_RGB, + R128_CCE_VC_FRMT_SPEC_FRGB, 3 ); + } else + EMIT_PAD( 3 ); +#endif + } + + if ( index & _TNL_BIT_TEX(rmesa->tmu_source[0]) ) { + if ( VB->TexCoordPtr[rmesa->tmu_source[0]]->size > 2 ) + fallback_projtex = GL_TRUE; + EMIT_ATTR( _TNL_ATTRIB_TEX0, EMIT_2F, R128_CCE_VC_FRMT_S_T, 8 ); + } + if ( index & _TNL_BIT_TEX(rmesa->tmu_source[1]) ) { + if ( VB->TexCoordPtr[rmesa->tmu_source[1]]->size > 2 ) + fallback_projtex = GL_TRUE; + EMIT_ATTR( _TNL_ATTRIB_TEX1, EMIT_2F, R128_CCE_VC_FRMT_S2_T2, 8 ); + } + + /* projective textures are not supported by the hardware */ + FALLBACK( rmesa, R128_FALLBACK_PROJTEX, fallback_projtex ); + + /* Only need to change the vertex emit code if there has been a + * statechange to a TNL index. + */ + if ( index != rmesa->tnl_state ) { + FLUSH_BATCH( rmesa ); + rmesa->dirty |= R128_UPLOAD_CONTEXT; + + rmesa->vertex_size = + _tnl_install_attrs( ctx, + rmesa->vertex_attrs, + rmesa->vertex_attr_count, + rmesa->hw_viewport, 0 ); + rmesa->vertex_size >>= 2; + + rmesa->vertex_format = vc_frmt; + } +} + +static void r128RenderFinish( GLcontext *ctx ) +{ + if (R128_CONTEXT(ctx)->RenderIndex & R128_FALLBACK_BIT) + _swrast_flush( ctx ); +} + + +/**********************************************************************/ +/* Transition to/from hardware rasterization. */ +/**********************************************************************/ + +static const char * const fallbackStrings[] = { + "Texture mode", + "glDrawBuffer(GL_FRONT_AND_BACK)", + "glReadBuffer", + "glEnable(GL_STENCIL) without hw stencil buffer", + "glRenderMode(selection or feedback)", + "glLogicOp (mode != GL_COPY)", + "GL_SEPARATE_SPECULAR_COLOR", + "glBlendEquation(mode != ADD)", + "glBlendFunc", + "Projective texture", + "Rasterization disable", +}; + + +static const char *getFallbackString(GLuint bit) +{ + int i = 0; + while (bit > 1) { + i++; + bit >>= 1; + } + return fallbackStrings[i]; +} + +void r128Fallback( GLcontext *ctx, GLuint bit, GLboolean mode ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + r128ContextPtr rmesa = R128_CONTEXT(ctx); + GLuint oldfallback = rmesa->Fallback; + + if (mode) { + rmesa->Fallback |= bit; + if (oldfallback == 0) { + FLUSH_BATCH( rmesa ); + _swsetup_Wakeup( ctx ); + rmesa->RenderIndex = ~0; + if ( R128_DEBUG & DEBUG_VERBOSE_FALL ) { + fprintf(stderr, "R128 begin rasterization fallback: 0x%x %s\n", + bit, getFallbackString(bit)); + } + } + } + else { + rmesa->Fallback &= ~bit; + if (oldfallback == bit) { + _swrast_flush( ctx ); + tnl->Driver.Render.Start = r128RenderStart; + tnl->Driver.Render.PrimitiveNotify = r128RenderPrimitive; + tnl->Driver.Render.Finish = r128RenderFinish; + + 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, + rmesa->vertex_attrs, + rmesa->vertex_attr_count, + rmesa->hw_viewport, 0 ); + + rmesa->NewGLState |= _R128_NEW_RENDER_STATE; + if ( R128_DEBUG & DEBUG_VERBOSE_FALL ) { + fprintf(stderr, "R128 end rasterization fallback: 0x%x %s\n", + bit, getFallbackString(bit)); + } + } + } +} + + +/**********************************************************************/ +/* Initialization. */ +/**********************************************************************/ + +void r128InitTriFuncs( GLcontext *ctx ) +{ + r128ContextPtr rmesa = R128_CONTEXT(ctx); + TNLcontext *tnl = TNL_CONTEXT(ctx); + static int firsttime = 1; + + if (firsttime) { + init_rast_tab(); + firsttime = 0; + } + + tnl->Driver.RunPipeline = r128RunPipeline; + tnl->Driver.Render.Start = r128RenderStart; + tnl->Driver.Render.Finish = r128RenderFinish; + tnl->Driver.Render.PrimitiveNotify = r128RenderPrimitive; + 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, + (6 + 2 * ctx->Const.MaxTextureUnits) * sizeof(GLfloat) ); + rmesa->verts = (char *)tnl->clipspace.vertex_buf; + rmesa->tnl_state = -1; + + rmesa->NewGLState |= _R128_NEW_RENDER_STATE; +} |