ea532f0e72
Now that draw depends on llvm it is very difficult to correctly handle broken llvm installations. Either the user requests LLVM and it needs to supply a working installation. Or it doesn't, and it gets no LLVM accelerate pipe drivers.
335 lines
9.5 KiB
C
335 lines
9.5 KiB
C
/**************************************************************************
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*
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* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/*
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* Authors:
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* Keith Whitwell <keith@tungstengraphics.com>
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*/
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#include "draw/draw_context.h"
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#include "draw/draw_private.h"
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#include "draw/draw_pt.h"
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#include "tgsi/tgsi_dump.h"
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#include "util/u_math.h"
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#include "util/u_prim.h"
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static unsigned trim( unsigned count, unsigned first, unsigned incr )
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{
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if (count < first)
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return 0;
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return count - (count - first) % incr;
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}
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/* Overall we split things into:
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* - frontend -- prepare fetch_elts, draw_elts - eg vcache
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* - middle -- fetch, shade, cliptest, viewport
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* - pipeline -- the prim pipeline: clipping, wide lines, etc
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* - backend -- the vbuf_render provided by the driver.
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*/
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static boolean
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draw_pt_arrays(struct draw_context *draw,
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unsigned prim,
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unsigned start,
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unsigned count)
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{
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struct draw_pt_front_end *frontend = NULL;
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struct draw_pt_middle_end *middle = NULL;
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unsigned opt = 0;
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/* Sanitize primitive length:
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*/
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{
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unsigned first, incr;
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draw_pt_split_prim(prim, &first, &incr);
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count = trim(count, first, incr);
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if (count < first)
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return TRUE;
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}
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if (!draw->force_passthrough) {
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if (!draw->render) {
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opt |= PT_PIPELINE;
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}
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if (draw_need_pipeline(draw,
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draw->rasterizer,
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prim)) {
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opt |= PT_PIPELINE;
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}
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if (!draw->bypass_clipping && !draw->pt.test_fse) {
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opt |= PT_CLIPTEST;
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}
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opt |= PT_SHADE;
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}
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if (opt == 0)
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middle = draw->pt.middle.fetch_emit;
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else if (opt == PT_SHADE && !draw->pt.no_fse)
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middle = draw->pt.middle.fetch_shade_emit;
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else
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middle = draw->pt.middle.general;
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/* Pick the right frontend
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*/
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if (draw->pt.user.elts || (opt & PT_PIPELINE)) {
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frontend = draw->pt.front.vcache;
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} else {
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frontend = draw->pt.front.varray;
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}
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frontend->prepare( frontend, prim, middle, opt );
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frontend->run(frontend,
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draw_pt_elt_func(draw),
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draw_pt_elt_ptr(draw, start),
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count);
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frontend->finish( frontend );
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return TRUE;
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}
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boolean draw_pt_init( struct draw_context *draw )
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{
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draw->pt.test_fse = debug_get_bool_option("DRAW_FSE", FALSE);
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draw->pt.no_fse = debug_get_bool_option("DRAW_NO_FSE", FALSE);
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draw->pt.front.vcache = draw_pt_vcache( draw );
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if (!draw->pt.front.vcache)
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return FALSE;
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draw->pt.front.varray = draw_pt_varray(draw);
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if (!draw->pt.front.varray)
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return FALSE;
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draw->pt.middle.fetch_emit = draw_pt_fetch_emit( draw );
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if (!draw->pt.middle.fetch_emit)
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return FALSE;
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draw->pt.middle.fetch_shade_emit = draw_pt_middle_fse( draw );
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if (!draw->pt.middle.fetch_shade_emit)
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return FALSE;
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#if HAVE_LLVM
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draw->pt.middle.general = draw_pt_fetch_pipeline_or_emit_llvm( draw );
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#else
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draw->pt.middle.general = NULL;
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#endif
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if (!draw->pt.middle.general)
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draw->pt.middle.general = draw_pt_fetch_pipeline_or_emit( draw );
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if (!draw->pt.middle.general)
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return FALSE;
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return TRUE;
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}
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void draw_pt_destroy( struct draw_context *draw )
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{
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if (draw->pt.middle.general) {
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draw->pt.middle.general->destroy( draw->pt.middle.general );
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draw->pt.middle.general = NULL;
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}
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if (draw->pt.middle.fetch_emit) {
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draw->pt.middle.fetch_emit->destroy( draw->pt.middle.fetch_emit );
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draw->pt.middle.fetch_emit = NULL;
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}
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if (draw->pt.middle.fetch_shade_emit) {
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draw->pt.middle.fetch_shade_emit->destroy( draw->pt.middle.fetch_shade_emit );
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draw->pt.middle.fetch_shade_emit = NULL;
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}
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if (draw->pt.front.vcache) {
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draw->pt.front.vcache->destroy( draw->pt.front.vcache );
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draw->pt.front.vcache = NULL;
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}
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if (draw->pt.front.varray) {
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draw->pt.front.varray->destroy( draw->pt.front.varray );
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draw->pt.front.varray = NULL;
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}
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}
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/**
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* Debug- print the first 'count' vertices.
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*/
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static void
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draw_print_arrays(struct draw_context *draw, uint prim, int start, uint count)
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{
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uint i;
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debug_printf("Draw arrays(prim = %u, start = %u, count = %u)\n",
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prim, start, count);
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for (i = 0; i < count; i++) {
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uint ii = 0;
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uint j;
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if (draw->pt.user.elts) {
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/* indexed arrays */
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switch (draw->pt.user.eltSize) {
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case 1:
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{
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const ubyte *elem = (const ubyte *) draw->pt.user.elts;
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ii = elem[start + i];
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}
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break;
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case 2:
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{
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const ushort *elem = (const ushort *) draw->pt.user.elts;
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ii = elem[start + i];
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}
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break;
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case 4:
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{
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const uint *elem = (const uint *) draw->pt.user.elts;
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ii = elem[start + i];
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}
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break;
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default:
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assert(0);
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}
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debug_printf("Element[%u + %u] -> Vertex %u:\n", start, i, ii);
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}
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else {
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/* non-indexed arrays */
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ii = start + i;
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debug_printf("Vertex %u:\n", ii);
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}
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for (j = 0; j < draw->pt.nr_vertex_elements; j++) {
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uint buf = draw->pt.vertex_element[j].vertex_buffer_index;
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ubyte *ptr = (ubyte *) draw->pt.user.vbuffer[buf];
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ptr += draw->pt.vertex_buffer[buf].stride * ii;
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ptr += draw->pt.vertex_element[j].src_offset;
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debug_printf(" Attr %u: ", j);
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switch (draw->pt.vertex_element[j].src_format) {
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case PIPE_FORMAT_R32_FLOAT:
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{
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float *v = (float *) ptr;
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debug_printf("%f @ %p\n", v[0], (void *) v);
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}
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break;
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case PIPE_FORMAT_R32G32_FLOAT:
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{
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float *v = (float *) ptr;
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debug_printf("%f %f @ %p\n", v[0], v[1], (void *) v);
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}
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break;
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case PIPE_FORMAT_R32G32B32_FLOAT:
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{
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float *v = (float *) ptr;
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debug_printf("%f %f %f @ %p\n", v[0], v[1], v[2], (void *) v);
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}
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break;
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case PIPE_FORMAT_R32G32B32A32_FLOAT:
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{
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float *v = (float *) ptr;
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debug_printf("%f %f %f %f @ %p\n", v[0], v[1], v[2], v[3],
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(void *) v);
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}
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break;
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default:
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debug_printf("other format (fix me)\n");
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;
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}
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}
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}
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}
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/**
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* Draw vertex arrays
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* This is the main entrypoint into the drawing module.
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* \param prim one of PIPE_PRIM_x
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* \param start index of first vertex to draw
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* \param count number of vertices to draw
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*/
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void
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draw_arrays(struct draw_context *draw, unsigned prim,
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unsigned start, unsigned count)
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{
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draw_arrays_instanced(draw, prim, start, count, 0, 1);
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}
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void
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draw_arrays_instanced(struct draw_context *draw,
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unsigned mode,
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unsigned start,
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unsigned count,
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unsigned startInstance,
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unsigned instanceCount)
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{
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unsigned reduced_prim = u_reduced_prim(mode);
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unsigned instance;
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if (reduced_prim != draw->reduced_prim) {
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draw_do_flush(draw, DRAW_FLUSH_STATE_CHANGE);
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draw->reduced_prim = reduced_prim;
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}
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if (0)
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draw_print_arrays(draw, mode, start, MIN2(count, 20));
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#if 0
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{
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int i;
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debug_printf("draw_arrays(mode=%u start=%u count=%u):\n",
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mode, start, count);
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tgsi_dump(draw->vs.vertex_shader->state.tokens, 0);
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debug_printf("Elements:\n");
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for (i = 0; i < draw->pt.nr_vertex_elements; i++) {
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debug_printf(" format=%s\n",
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util_format_name(draw->pt.vertex_element[i].src_format));
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}
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debug_printf("Buffers:\n");
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for (i = 0; i < draw->pt.nr_vertex_buffers; i++) {
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debug_printf(" stride=%u offset=%u ptr=%p\n",
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draw->pt.vertex_buffer[i].stride,
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draw->pt.vertex_buffer[i].buffer_offset,
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draw->pt.user.vbuffer[i]);
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}
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}
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#endif
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for (instance = 0; instance < instanceCount; instance++) {
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draw->instance_id = instance + startInstance;
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draw_pt_arrays(draw, mode, start, count);
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}
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}
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