diff options
Diffstat (limited to 'src/mesa/drivers/dri/i915/intel_tris.c')
| -rw-r--r-- | src/mesa/drivers/dri/i915/intel_tris.c | 1152 |
1 files changed, 1152 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i915/intel_tris.c b/src/mesa/drivers/dri/i915/intel_tris.c new file mode 100644 index 0000000000..5fe3d4561f --- /dev/null +++ b/src/mesa/drivers/dri/i915/intel_tris.c @@ -0,0 +1,1152 @@ +/************************************************************************** + * + * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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 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 TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "glheader.h" +#include "context.h" +#include "macros.h" +#include "enums.h" +#include "texobj.h" +#include "state.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 "tnl/t_vertex.h" + +#include "intel_screen.h" +#include "intel_context.h" +#include "intel_tris.h" +#include "intel_batchbuffer.h" +#include "intel_buffers.h" +#include "intel_reg.h" +#include "intel_span.h" +#include "intel_tex.h" + +static void intelRenderPrimitive(GLcontext * ctx, GLenum prim); +static void intelRasterPrimitive(GLcontext * ctx, GLenum rprim, + GLuint hwprim); + +/* + */ +static void +intel_flush_inline_primitive(struct intel_context *intel) +{ + GLuint used = intel->batch->ptr - intel->prim.start_ptr; + + assert(intel->prim.primitive != ~0); + +/* _mesa_printf("/\n"); */ + + if (used < 8) + goto do_discard; + + *(int *) intel->prim.start_ptr = (_3DPRIMITIVE | + intel->prim.primitive | (used / 4 - 2)); + + goto finished; + + do_discard: + intel->batch->ptr -= used; + + finished: + intel->prim.primitive = ~0; + intel->prim.start_ptr = 0; + intel->prim.flush = 0; +} + + +/* Emit a primitive referencing vertices in a vertex buffer. + */ +void +intelStartInlinePrimitive(struct intel_context *intel, + GLuint prim, GLuint batch_flags) +{ + BATCH_LOCALS; + + intel->vtbl.emit_state(intel); + + /* Need to make sure at the very least that we don't wrap + * batchbuffers in BEGIN_BATCH below, otherwise the primitive will + * be emitted to a batchbuffer missing the required full-state + * preamble. + */ + if (intel_batchbuffer_space(intel->batch) < 100) { + intel_batchbuffer_flush(intel->batch); + intel->vtbl.emit_state(intel); + } + +/* _mesa_printf("%s *", __progname); */ + + intel_wait_flips(intel, batch_flags); + + /* Emit a slot which will be filled with the inline primitive + * command later. + */ + BEGIN_BATCH(2, batch_flags); + OUT_BATCH(0); + + intel->prim.start_ptr = intel->batch->ptr; + intel->prim.primitive = prim; + intel->prim.flush = intel_flush_inline_primitive; + + OUT_BATCH(0); + ADVANCE_BATCH(); + +/* _mesa_printf(">"); */ +} + + +void +intelWrapInlinePrimitive(struct intel_context *intel) +{ + GLuint prim = intel->prim.primitive; + GLuint batchflags = intel->batch->flags; + + intel_flush_inline_primitive(intel); + intel_batchbuffer_flush(intel->batch); + intelStartInlinePrimitive(intel, prim, batchflags); /* ??? */ +} + +GLuint * +intelExtendInlinePrimitive(struct intel_context *intel, GLuint dwords) +{ + GLuint sz = dwords * sizeof(GLuint); + GLuint *ptr; + + assert(intel->prim.flush == intel_flush_inline_primitive); + + if (intel_batchbuffer_space(intel->batch) < sz) + intelWrapInlinePrimitive(intel); + +/* _mesa_printf("."); */ + + intel->vtbl.assert_not_dirty(intel); + + ptr = (GLuint *) intel->batch->ptr; + intel->batch->ptr += sz; + + return ptr; +} + + + +/*********************************************************************** + * Emit primitives as inline vertices * + ***********************************************************************/ + +#ifdef __i386__ +#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 +intel_draw_quad(struct intel_context *intel, + intelVertexPtr v0, + intelVertexPtr v1, intelVertexPtr v2, intelVertexPtr v3) +{ + GLuint vertsize = intel->vertex_size; + GLuint *vb = intelExtendInlinePrimitive(intel, 6 * vertsize); + int j; + + COPY_DWORDS(j, vb, vertsize, v0); + COPY_DWORDS(j, vb, vertsize, v1); + + /* If smooth shading, draw like a trifan which gives better + * rasterization. Otherwise draw as two triangles with provoking + * vertex in third position as required for flat shading. + */ + if (intel->ctx.Light.ShadeModel == GL_FLAT) { + COPY_DWORDS(j, vb, vertsize, v3); + COPY_DWORDS(j, vb, vertsize, v1); + } + else { + COPY_DWORDS(j, vb, vertsize, v2); + COPY_DWORDS(j, vb, vertsize, v0); + } + + COPY_DWORDS(j, vb, vertsize, v2); + COPY_DWORDS(j, vb, vertsize, v3); +} + +static void +intel_draw_triangle(struct intel_context *intel, + intelVertexPtr v0, intelVertexPtr v1, intelVertexPtr v2) +{ + GLuint vertsize = intel->vertex_size; + GLuint *vb = intelExtendInlinePrimitive(intel, 3 * vertsize); + int j; + + COPY_DWORDS(j, vb, vertsize, v0); + COPY_DWORDS(j, vb, vertsize, v1); + COPY_DWORDS(j, vb, vertsize, v2); +} + + +static void +intel_draw_line(struct intel_context *intel, + intelVertexPtr v0, intelVertexPtr v1) +{ + GLuint vertsize = intel->vertex_size; + GLuint *vb = intelExtendInlinePrimitive(intel, 2 * vertsize); + int j; + + COPY_DWORDS(j, vb, vertsize, v0); + COPY_DWORDS(j, vb, vertsize, v1); +} + + +static void +intel_draw_point(struct intel_context *intel, intelVertexPtr v0) +{ + GLuint vertsize = intel->vertex_size; + GLuint *vb = intelExtendInlinePrimitive(intel, vertsize); + int j; + + /* Adjust for sub pixel position -- still required for conform. */ + *(float *) &vb[0] = v0->v.x - 0.125; + *(float *) &vb[1] = v0->v.y - 0.125; + for (j = 2; j < vertsize; j++) + vb[j] = v0->ui[j]; +} + + + +/*********************************************************************** + * Fixup for ARB_point_parameters * + ***********************************************************************/ + +/* Currently not working - VERT_ATTRIB_POINTSIZE isn't correctly + * represented in the fragment program InputsRead field. + */ +static void +intel_atten_point(struct intel_context *intel, intelVertexPtr v0) +{ + GLcontext *ctx = &intel->ctx; + GLfloat psz[4], col[4], restore_psz, restore_alpha; + + _tnl_get_attr(ctx, v0, _TNL_ATTRIB_POINTSIZE, psz); + _tnl_get_attr(ctx, v0, _TNL_ATTRIB_COLOR0, col); + + restore_psz = psz[0]; + restore_alpha = col[3]; + + if (psz[0] >= ctx->Point.Threshold) { + psz[0] = MIN2(psz[0], ctx->Point.MaxSize); + } + else { + GLfloat dsize = psz[0] / ctx->Point.Threshold; + psz[0] = MAX2(ctx->Point.Threshold, ctx->Point.MinSize); + col[3] *= dsize * dsize; + } + + if (psz[0] < 1.0) + psz[0] = 1.0; + + if (restore_psz != psz[0] || restore_alpha != col[3]) { + _tnl_set_attr(ctx, v0, _TNL_ATTRIB_POINTSIZE, psz); + _tnl_set_attr(ctx, v0, _TNL_ATTRIB_COLOR0, col); + + intel_draw_point(intel, v0); + + psz[0] = restore_psz; + col[3] = restore_alpha; + + _tnl_set_attr(ctx, v0, _TNL_ATTRIB_POINTSIZE, psz); + _tnl_set_attr(ctx, v0, _TNL_ATTRIB_COLOR0, col); + } + else + intel_draw_point(intel, v0); +} + + + + + +/*********************************************************************** + * Fixup for I915 WPOS texture coordinate * + ***********************************************************************/ + + + +static void +intel_wpos_triangle(struct intel_context *intel, + intelVertexPtr v0, intelVertexPtr v1, intelVertexPtr v2) +{ + GLuint offset = intel->wpos_offset; + GLuint size = intel->wpos_size; + + __memcpy(((char *) v0) + offset, v0, size); + __memcpy(((char *) v1) + offset, v1, size); + __memcpy(((char *) v2) + offset, v2, size); + + intel_draw_triangle(intel, v0, v1, v2); +} + + +static void +intel_wpos_line(struct intel_context *intel, + intelVertexPtr v0, intelVertexPtr v1) +{ + GLuint offset = intel->wpos_offset; + GLuint size = intel->wpos_size; + + __memcpy(((char *) v0) + offset, v0, size); + __memcpy(((char *) v1) + offset, v1, size); + + intel_draw_line(intel, v0, v1); +} + + +static void +intel_wpos_point(struct intel_context *intel, intelVertexPtr v0) +{ + GLuint offset = intel->wpos_offset; + GLuint size = intel->wpos_size; + + __memcpy(((char *) v0) + offset, v0, size); + + intel_draw_point(intel, v0); +} + + + + + + +/*********************************************************************** + * Macros for t_dd_tritmp.h to draw basic primitives * + ***********************************************************************/ + +#define TRI( a, b, c ) \ +do { \ + if (DO_FALLBACK) \ + intel->draw_tri( intel, a, b, c ); \ + else \ + intel_draw_triangle( intel, a, b, c ); \ +} while (0) + +#define QUAD( a, b, c, d ) \ +do { \ + if (DO_FALLBACK) { \ + intel->draw_tri( intel, a, b, d ); \ + intel->draw_tri( intel, b, c, d ); \ + } else \ + intel_draw_quad( intel, a, b, c, d ); \ +} while (0) + +#define LINE( v0, v1 ) \ +do { \ + if (DO_FALLBACK) \ + intel->draw_line( intel, v0, v1 ); \ + else \ + intel_draw_line( intel, v0, v1 ); \ +} while (0) + +#define POINT( v0 ) \ +do { \ + if (DO_FALLBACK) \ + intel->draw_point( intel, v0 ); \ + else \ + intel_draw_point( intel, v0 ); \ +} while (0) + + +/*********************************************************************** + * Build render functions from dd templates * + ***********************************************************************/ + +#define INTEL_OFFSET_BIT 0x01 +#define INTEL_TWOSIDE_BIT 0x02 +#define INTEL_UNFILLED_BIT 0x04 +#define INTEL_FALLBACK_BIT 0x08 +#define INTEL_MAX_TRIFUNC 0x10 + + +static struct +{ + tnl_points_func points; + tnl_line_func line; + tnl_triangle_func triangle; + tnl_quad_func quad; +} rast_tab[INTEL_MAX_TRIFUNC]; + + +#define DO_FALLBACK (IND & INTEL_FALLBACK_BIT) +#define DO_OFFSET (IND & INTEL_OFFSET_BIT) +#define DO_UNFILLED (IND & INTEL_UNFILLED_BIT) +#define DO_TWOSIDE (IND & INTEL_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 intelVertex +#define TAB rast_tab + +/* Only used to pull back colors into vertices (ie, we know color is + * floating point). + */ +#define INTEL_COLOR( dst, src ) \ +do { \ + UNCLAMPED_FLOAT_TO_UBYTE((dst)[0], (src)[2]); \ + UNCLAMPED_FLOAT_TO_UBYTE((dst)[1], (src)[1]); \ + UNCLAMPED_FLOAT_TO_UBYTE((dst)[2], (src)[0]); \ + UNCLAMPED_FLOAT_TO_UBYTE((dst)[3], (src)[3]); \ +} while (0) + +#define INTEL_SPEC( dst, src ) \ +do { \ + UNCLAMPED_FLOAT_TO_UBYTE((dst)[0], (src)[2]); \ + UNCLAMPED_FLOAT_TO_UBYTE((dst)[1], (src)[1]); \ + UNCLAMPED_FLOAT_TO_UBYTE((dst)[2], (src)[0]); \ +} while (0) + + +#define DEPTH_SCALE intel->polygon_offset_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) (intel->verts + (e * intel->vertex_size * sizeof(GLuint))) + +#define VERT_SET_RGBA( v, c ) if (coloroffset) INTEL_COLOR( v->ub4[coloroffset], c ) +#define VERT_COPY_RGBA( v0, v1 ) if (coloroffset) v0->ui[coloroffset] = v1->ui[coloroffset] +#define VERT_SAVE_RGBA( idx ) if (coloroffset) color[idx] = v[idx]->ui[coloroffset] +#define VERT_RESTORE_RGBA( idx ) if (coloroffset) v[idx]->ui[coloroffset] = color[idx] + +#define VERT_SET_SPEC( v, c ) if (specoffset) INTEL_SPEC( v->ub4[specoffset], c ) +#define VERT_COPY_SPEC( v0, v1 ) if (specoffset) COPY_3V(v0->ub4[specoffset], v1->ub4[specoffset]) +#define VERT_SAVE_SPEC( idx ) if (specoffset) spec[idx] = v[idx]->ui[specoffset] +#define VERT_RESTORE_SPEC( idx ) if (specoffset) v[idx]->ui[specoffset] = spec[idx] + +#define LOCAL_VARS(n) \ + struct intel_context *intel = intel_context(ctx); \ + GLuint color[n], spec[n]; \ + GLuint coloroffset = intel->coloroffset; \ + GLboolean specoffset = intel->specoffset; \ + (void) color; (void) spec; (void) coloroffset; (void) specoffset; + + +/*********************************************************************** + * 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) intelRasterPrimitive( ctx, x, hw_prim[x] ) +#define RENDER_PRIMITIVE intel->render_primitive +#define TAG(x) x +#define IND INTEL_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 (INTEL_OFFSET_BIT) +#define TAG(x) x##_offset +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (INTEL_TWOSIDE_BIT) +#define TAG(x) x##_twoside +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT) +#define TAG(x) x##_twoside_offset +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (INTEL_UNFILLED_BIT) +#define TAG(x) x##_unfilled +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT) +#define TAG(x) x##_offset_unfilled +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (INTEL_TWOSIDE_BIT|INTEL_UNFILLED_BIT) +#define TAG(x) x##_twoside_unfilled +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT) +#define TAG(x) x##_twoside_offset_unfilled +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (INTEL_FALLBACK_BIT) +#define TAG(x) x##_fallback +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (INTEL_OFFSET_BIT|INTEL_FALLBACK_BIT) +#define TAG(x) x##_offset_fallback +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (INTEL_TWOSIDE_BIT|INTEL_FALLBACK_BIT) +#define TAG(x) x##_twoside_fallback +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT|INTEL_FALLBACK_BIT) +#define TAG(x) x##_twoside_offset_fallback +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (INTEL_UNFILLED_BIT|INTEL_FALLBACK_BIT) +#define TAG(x) x##_unfilled_fallback +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT|INTEL_FALLBACK_BIT) +#define TAG(x) x##_offset_unfilled_fallback +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (INTEL_TWOSIDE_BIT|INTEL_UNFILLED_BIT|INTEL_FALLBACK_BIT) +#define TAG(x) x##_twoside_unfilled_fallback +#include "tnl_dd/t_dd_tritmp.h" + +#define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT| \ + INTEL_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 +intel_fallback_tri(struct intel_context *intel, + intelVertex * v0, intelVertex * v1, intelVertex * v2) +{ + GLcontext *ctx = &intel->ctx; + SWvertex v[3]; + + if (0) + fprintf(stderr, "\n%s\n", __FUNCTION__); + + INTEL_FIREVERTICES(intel); + + _swsetup_Translate(ctx, v0, &v[0]); + _swsetup_Translate(ctx, v1, &v[1]); + _swsetup_Translate(ctx, v2, &v[2]); + intelSpanRenderStart(ctx); + _swrast_Triangle(ctx, &v[0], &v[1], &v[2]); + intelSpanRenderFinish(ctx); +} + + +static void +intel_fallback_line(struct intel_context *intel, + intelVertex * v0, intelVertex * v1) +{ + GLcontext *ctx = &intel->ctx; + SWvertex v[2]; + + if (0) + fprintf(stderr, "\n%s\n", __FUNCTION__); + + INTEL_FIREVERTICES(intel); + + _swsetup_Translate(ctx, v0, &v[0]); + _swsetup_Translate(ctx, v1, &v[1]); + intelSpanRenderStart(ctx); + _swrast_Line(ctx, &v[0], &v[1]); + intelSpanRenderFinish(ctx); +} + +static void +intel_fallback_point(struct intel_context *intel, + intelVertex * v0) +{ + GLcontext *ctx = &intel->ctx; + SWvertex v[1]; + + if (0) + fprintf(stderr, "\n%s\n", __FUNCTION__); + + INTEL_FIREVERTICES(intel); + + _swsetup_Translate(ctx, v0, &v[0]); + intelSpanRenderStart(ctx); + _swrast_Point(ctx, &v[0]); + intelSpanRenderFinish(ctx); +} + + +/**********************************************************************/ +/* Render unclipped begin/end objects */ +/**********************************************************************/ + +#define IND 0 +#define V(x) (intelVertex *)(vertptr + ((x)*vertsize*sizeof(GLuint))) +#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) intelRenderPrimitive( ctx, x ) +#undef LOCAL_VARS +#define LOCAL_VARS \ + struct intel_context *intel = intel_context(ctx); \ + GLubyte *vertptr = (GLubyte *)intel->verts; \ + const GLuint vertsize = intel->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) intel_##x##_verts +#include "tnl/t_vb_rendertmp.h" +#undef ELT +#undef TAG +#define TAG(x) intel_##x##_elts +#define ELT(x) elt[x] +#include "tnl/t_vb_rendertmp.h" + +/**********************************************************************/ +/* Render clipped primitives */ +/**********************************************************************/ + + + +static void +intelRenderClippedPoly(GLcontext * ctx, const GLuint * elts, GLuint n) +{ + struct intel_context *intel = intel_context(ctx); + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + GLuint prim = intel->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 +intelRenderClippedLine(GLcontext * ctx, GLuint ii, GLuint jj) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + + tnl->Driver.Render.Line(ctx, ii, jj); +} + +static void +intelFastRenderClippedPoly(GLcontext * ctx, const GLuint * elts, GLuint n) +{ + struct intel_context *intel = intel_context(ctx); + const GLuint vertsize = intel->vertex_size; + GLuint *vb = intelExtendInlinePrimitive(intel, (n - 2) * 3 * vertsize); + GLubyte *vertptr = (GLubyte *) intel->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 ANY_FALLBACK_FLAGS (DD_LINE_STIPPLE | DD_TRI_STIPPLE | DD_POINT_ATTEN | DD_POINT_SMOOTH | DD_TRI_SMOOTH) +#define ANY_RASTER_FLAGS (DD_TRI_LIGHT_TWOSIDE | DD_TRI_OFFSET | DD_TRI_UNFILLED) + +void +intelChooseRenderState(GLcontext * ctx) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct intel_context *intel = intel_context(ctx); + GLuint flags = ctx->_TriangleCaps; + const struct gl_fragment_program *fprog = ctx->FragmentProgram._Current; + GLboolean have_wpos = (fprog && (fprog->Base.InputsRead & FRAG_BIT_WPOS)); + GLuint index = 0; + + if (INTEL_DEBUG & DEBUG_STATE) + fprintf(stderr, "\n%s\n", __FUNCTION__); + + if ((flags & (ANY_FALLBACK_FLAGS | ANY_RASTER_FLAGS)) || have_wpos) { + + if (flags & ANY_RASTER_FLAGS) { + if (flags & DD_TRI_LIGHT_TWOSIDE) + index |= INTEL_TWOSIDE_BIT; + if (flags & DD_TRI_OFFSET) + index |= INTEL_OFFSET_BIT; + if (flags & DD_TRI_UNFILLED) + index |= INTEL_UNFILLED_BIT; + } + + if (have_wpos) { + intel->draw_point = intel_wpos_point; + intel->draw_line = intel_wpos_line; + intel->draw_tri = intel_wpos_triangle; + + /* Make sure these get called: + */ + index |= INTEL_FALLBACK_BIT; + } + else { + intel->draw_point = intel_draw_point; + intel->draw_line = intel_draw_line; + intel->draw_tri = intel_draw_triangle; + } + + /* Hook in fallbacks for specific primitives. + */ + if (flags & ANY_FALLBACK_FLAGS) { + if (flags & DD_LINE_STIPPLE) + intel->draw_line = intel_fallback_line; + + if ((flags & DD_TRI_STIPPLE) && !intel->hw_stipple) + intel->draw_tri = intel_fallback_tri; + + if (flags & DD_TRI_SMOOTH) { + if (intel->strict_conformance) + intel->draw_tri = intel_fallback_tri; + } + + if (flags & DD_POINT_ATTEN) { + if (0) + intel->draw_point = intel_atten_point; + else + intel->draw_point = intel_fallback_point; + } + + if (flags & DD_POINT_SMOOTH) { + if (intel->strict_conformance) + intel->draw_point = intel_fallback_point; + } + + index |= INTEL_FALLBACK_BIT; + } + } + + if (intel->RenderIndex != index) { + intel->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 = intel_render_tab_verts; + tnl->Driver.Render.PrimTabElts = intel_render_tab_elts; + tnl->Driver.Render.ClippedLine = line; /* from tritmp.h */ + tnl->Driver.Render.ClippedPolygon = intelFastRenderClippedPoly; + } + else { + tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts; + tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts; + tnl->Driver.Render.ClippedLine = intelRenderClippedLine; + tnl->Driver.Render.ClippedPolygon = intelRenderClippedPoly; + } + } +} + +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 */ +/**********************************************************************/ + + + + +static void +intelRunPipeline(GLcontext * ctx) +{ + struct intel_context *intel = intel_context(ctx); + + _mesa_lock_context_textures(ctx); + + if (ctx->NewState) + _mesa_update_state_locked(ctx); + + if (intel->NewGLState) { + if (intel->NewGLState & _NEW_TEXTURE) { + intel->vtbl.update_texture_state(intel); + } + + if (!intel->Fallback) { + if (intel->NewGLState & _INTEL_NEW_RENDERSTATE) + intelChooseRenderState(ctx); + } + + intel->NewGLState = 0; + } + + _tnl_run_pipeline(ctx); + + _mesa_unlock_context_textures(ctx); +} + +static void +intelRenderStart(GLcontext * ctx) +{ + struct intel_context *intel = intel_context(ctx); + + intel->vtbl.render_start(intel_context(ctx)); + intel->vtbl.emit_state(intel); +} + +static void +intelRenderFinish(GLcontext * ctx) +{ + struct intel_context *intel = intel_context(ctx); + + if (intel->RenderIndex & INTEL_FALLBACK_BIT) + _swrast_flush(ctx); + + INTEL_FIREVERTICES(intel); +} + + + + + /* System to flush dma and emit state changes based on the rasterized + * primitive. + */ +static void +intelRasterPrimitive(GLcontext * ctx, GLenum rprim, GLuint hwprim) +{ + struct intel_context *intel = intel_context(ctx); + + if (0) + fprintf(stderr, "%s %s %x\n", __FUNCTION__, + _mesa_lookup_enum_by_nr(rprim), hwprim); + + intel->vtbl.reduced_primitive_state(intel, rprim); + + /* Start a new primitive. Arrange to have it flushed later on. + */ + if (hwprim != intel->prim.primitive) { + INTEL_FIREVERTICES(intel); + + intelStartInlinePrimitive(intel, hwprim, INTEL_BATCH_CLIPRECTS); + } +} + + + /* + */ +static void +intelRenderPrimitive(GLcontext * ctx, GLenum prim) +{ + struct intel_context *intel = intel_context(ctx); + + if (0) + fprintf(stderr, "%s %s\n", __FUNCTION__, _mesa_lookup_enum_by_nr(prim)); + + /* Let some clipping routines know which primitive they're dealing + * with. + */ + intel->render_primitive = prim; + + /* Shortcircuit this when called from t_dd_rendertmp.h for unfilled + * triangles. The rasterized primitive will always be reset by + * lower level functions in that case, potentially pingponging the + * state: + */ + if (reduced_prim[prim] == GL_TRIANGLES && + (ctx->_TriangleCaps & DD_TRI_UNFILLED)) + return; + + /* Set some primitive-dependent state and Start? a new primitive. + */ + intelRasterPrimitive(ctx, reduced_prim[prim], hw_prim[prim]); +} + + + /**********************************************************************/ + /* Transition to/from hardware rasterization. */ + /**********************************************************************/ + +static char *fallbackStrings[] = { + [0] = "Draw buffer", + [1] = "Read buffer", + [2] = "Depth buffer", + [3] = "Stencil buffer", + [4] = "User disable", + [5] = "Render mode", + + [12] = "Texture", + [13] = "Color mask", + [14] = "Stencil", + [15] = "Stipple", + [16] = "Program", + [17] = "Logic op", + [18] = "Smooth polygon", + [19] = "Smooth point", +}; + + +static char * +getFallbackString(GLuint bit) +{ + int i = 0; + while (bit > 1) { + i++; + bit >>= 1; + } + return fallbackStrings[i]; +} + + + +void +intelFallback(struct intel_context *intel, GLuint bit, GLboolean mode) +{ + GLcontext *ctx = &intel->ctx; + TNLcontext *tnl = TNL_CONTEXT(ctx); + GLuint oldfallback = intel->Fallback; + + if (mode) { + intel->Fallback |= bit; + if (oldfallback == 0) { + intelFlush(ctx); + if (INTEL_DEBUG & DEBUG_FALLBACKS) + fprintf(stderr, "ENTER FALLBACK %x: %s\n", + bit, getFallbackString(bit)); + _swsetup_Wakeup(ctx); + intel->RenderIndex = ~0; + } + } + else { + intel->Fallback &= ~bit; + if (oldfallback == bit) { + _swrast_flush(ctx); + if (INTEL_DEBUG & DEBUG_FALLBACKS) + fprintf(stderr, "LEAVE FALLBACK %s\n", getFallbackString(bit)); + tnl->Driver.Render.Start = intelRenderStart; + tnl->Driver.Render.PrimitiveNotify = intelRenderPrimitive; + tnl->Driver.Render.Finish = intelRenderFinish; + 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, + intel->vertex_attrs, + intel->vertex_attr_count, + intel->ViewportMatrix.m, 0); + + intel->NewGLState |= _INTEL_NEW_RENDERSTATE; + } + } +} + +union fi +{ + GLfloat f; + GLint i; +}; + + +/**********************************************************************/ +/* Used only with the metaops callbacks. */ +/**********************************************************************/ +void +intel_meta_draw_poly(struct intel_context *intel, + GLuint n, + GLfloat xy[][2], + GLfloat z, GLuint color, GLfloat tex[][2]) +{ + union fi *vb; + GLint i; + + /* All 3d primitives should be emitted with INTEL_BATCH_CLIPRECTS, + * otherwise the drawing origin (DR4) might not be set correctly. + */ + intelStartInlinePrimitive(intel, PRIM3D_TRIFAN, INTEL_BATCH_CLIPRECTS); + vb = (union fi *) intelExtendInlinePrimitive(intel, n * 6); + + for (i = 0; i < n; i++) { + vb[0].f = xy[i][0]; + vb[1].f = xy[i][1]; + vb[2].f = z; + vb[3].i = color; + vb[4].f = tex[i][0]; + vb[5].f = tex[i][1]; + vb += 6; + } + + INTEL_FIREVERTICES(intel); +} + +void +intel_meta_draw_quad(struct intel_context *intel, + GLfloat x0, GLfloat x1, + GLfloat y0, GLfloat y1, + GLfloat z, + GLuint color, + GLfloat s0, GLfloat s1, GLfloat t0, GLfloat t1) +{ + GLfloat xy[4][2]; + GLfloat tex[4][2]; + + xy[0][0] = x0; + xy[0][1] = y0; + xy[1][0] = x1; + xy[1][1] = y0; + xy[2][0] = x1; + xy[2][1] = y1; + xy[3][0] = x0; + xy[3][1] = y1; + + tex[0][0] = s0; + tex[0][1] = t0; + tex[1][0] = s1; + tex[1][1] = t0; + tex[2][0] = s1; + tex[2][1] = t1; + tex[3][0] = s0; + tex[3][1] = t1; + + intel_meta_draw_poly(intel, 4, xy, z, color, tex); +} + + + +/**********************************************************************/ +/* Initialization. */ +/**********************************************************************/ + + +void +intelInitTriFuncs(GLcontext * ctx) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + static int firsttime = 1; + + if (firsttime) { + init_rast_tab(); + firsttime = 0; + } + + tnl->Driver.RunPipeline = intelRunPipeline; + tnl->Driver.Render.Start = intelRenderStart; + tnl->Driver.Render.Finish = intelRenderFinish; + tnl->Driver.Render.PrimitiveNotify = intelRenderPrimitive; + 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; +} |