forked from KolibriOS/kolibrios
edb28b33f3
git-svn-id: svn://kolibrios.org@3770 a494cfbc-eb01-0410-851d-a64ba20cac60
562 lines
17 KiB
C
562 lines
17 KiB
C
/**************************************************************************
|
|
*
|
|
* Copyright 2007 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.
|
|
*
|
|
**************************************************************************/
|
|
|
|
/*
|
|
* Authors:
|
|
* Keith Whitwell <keith@tungstengraphics.com>
|
|
*/
|
|
|
|
#include "draw/draw_context.h"
|
|
#include "draw/draw_gs.h"
|
|
#include "draw/draw_private.h"
|
|
#include "draw/draw_pt.h"
|
|
#include "draw/draw_vbuf.h"
|
|
#include "draw/draw_vs.h"
|
|
#include "tgsi/tgsi_dump.h"
|
|
#include "util/u_math.h"
|
|
#include "util/u_prim.h"
|
|
#include "util/u_format.h"
|
|
#include "util/u_draw.h"
|
|
|
|
|
|
DEBUG_GET_ONCE_BOOL_OPTION(draw_fse, "DRAW_FSE", FALSE)
|
|
DEBUG_GET_ONCE_BOOL_OPTION(draw_no_fse, "DRAW_NO_FSE", FALSE)
|
|
|
|
/* Overall we split things into:
|
|
* - frontend -- prepare fetch_elts, draw_elts - eg vsplit
|
|
* - middle -- fetch, shade, cliptest, viewport
|
|
* - pipeline -- the prim pipeline: clipping, wide lines, etc
|
|
* - backend -- the vbuf_render provided by the driver.
|
|
*/
|
|
static boolean
|
|
draw_pt_arrays(struct draw_context *draw,
|
|
unsigned prim,
|
|
unsigned start,
|
|
unsigned count)
|
|
{
|
|
struct draw_pt_front_end *frontend = NULL;
|
|
struct draw_pt_middle_end *middle = NULL;
|
|
unsigned opt = 0;
|
|
|
|
/* Sanitize primitive length:
|
|
*/
|
|
{
|
|
unsigned first, incr;
|
|
draw_pt_split_prim(prim, &first, &incr);
|
|
count = draw_pt_trim_count(count, first, incr);
|
|
if (count < first)
|
|
return TRUE;
|
|
}
|
|
|
|
if (!draw->force_passthrough) {
|
|
unsigned gs_out_prim = (draw->gs.geometry_shader ?
|
|
draw->gs.geometry_shader->output_primitive :
|
|
prim);
|
|
|
|
if (!draw->render) {
|
|
opt |= PT_PIPELINE;
|
|
}
|
|
|
|
if (draw_need_pipeline(draw,
|
|
draw->rasterizer,
|
|
gs_out_prim)) {
|
|
opt |= PT_PIPELINE;
|
|
}
|
|
|
|
if ((draw->clip_xy ||
|
|
draw->clip_z ||
|
|
draw->clip_user) && !draw->pt.test_fse) {
|
|
opt |= PT_CLIPTEST;
|
|
}
|
|
|
|
opt |= PT_SHADE;
|
|
}
|
|
|
|
if (draw->pt.middle.llvm) {
|
|
middle = draw->pt.middle.llvm;
|
|
} else {
|
|
if (opt == 0)
|
|
middle = draw->pt.middle.fetch_emit;
|
|
else if (opt == PT_SHADE && !draw->pt.no_fse)
|
|
middle = draw->pt.middle.fetch_shade_emit;
|
|
else
|
|
middle = draw->pt.middle.general;
|
|
}
|
|
|
|
frontend = draw->pt.frontend;
|
|
|
|
if (frontend ) {
|
|
if (draw->pt.prim != prim || draw->pt.opt != opt) {
|
|
/* In certain conditions switching primitives requires us to flush
|
|
* and validate the different stages. One example is when smooth
|
|
* lines are active but first drawn with triangles and then with
|
|
* lines.
|
|
*/
|
|
draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
|
|
frontend = NULL;
|
|
} else if (draw->pt.eltSize != draw->pt.user.eltSize) {
|
|
/* Flush draw state if eltSize changed.
|
|
* This could be improved so only the frontend is flushed since it
|
|
* converts all indices to ushorts and the fetch part of the middle
|
|
* always prepares both linear and indexed.
|
|
*/
|
|
frontend->flush( frontend, DRAW_FLUSH_STATE_CHANGE );
|
|
frontend = NULL;
|
|
}
|
|
}
|
|
|
|
if (!frontend) {
|
|
frontend = draw->pt.front.vsplit;
|
|
|
|
frontend->prepare( frontend, prim, middle, opt );
|
|
|
|
draw->pt.frontend = frontend;
|
|
draw->pt.eltSize = draw->pt.user.eltSize;
|
|
draw->pt.prim = prim;
|
|
draw->pt.opt = opt;
|
|
}
|
|
|
|
if (draw->pt.rebind_parameters) {
|
|
/* update constants, viewport dims, clip planes, etc */
|
|
middle->bind_parameters(middle);
|
|
draw->pt.rebind_parameters = FALSE;
|
|
}
|
|
|
|
frontend->run( frontend, start, count );
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void draw_pt_flush( struct draw_context *draw, unsigned flags )
|
|
{
|
|
assert(flags);
|
|
|
|
if (draw->pt.frontend) {
|
|
draw->pt.frontend->flush( draw->pt.frontend, flags );
|
|
|
|
/* don't prepare if we only are flushing the backend */
|
|
if (flags & DRAW_FLUSH_STATE_CHANGE)
|
|
draw->pt.frontend = NULL;
|
|
}
|
|
|
|
if (flags & DRAW_FLUSH_PARAMETER_CHANGE) {
|
|
draw->pt.rebind_parameters = TRUE;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
boolean draw_pt_init( struct draw_context *draw )
|
|
{
|
|
draw->pt.test_fse = debug_get_option_draw_fse();
|
|
draw->pt.no_fse = debug_get_option_draw_no_fse();
|
|
|
|
draw->pt.front.vsplit = draw_pt_vsplit(draw);
|
|
if (!draw->pt.front.vsplit)
|
|
return FALSE;
|
|
|
|
draw->pt.middle.fetch_emit = draw_pt_fetch_emit( draw );
|
|
if (!draw->pt.middle.fetch_emit)
|
|
return FALSE;
|
|
|
|
draw->pt.middle.fetch_shade_emit = draw_pt_middle_fse( draw );
|
|
if (!draw->pt.middle.fetch_shade_emit)
|
|
return FALSE;
|
|
|
|
draw->pt.middle.general = draw_pt_fetch_pipeline_or_emit( draw );
|
|
if (!draw->pt.middle.general)
|
|
return FALSE;
|
|
|
|
#if HAVE_LLVM
|
|
if (draw->llvm)
|
|
draw->pt.middle.llvm = draw_pt_fetch_pipeline_or_emit_llvm( draw );
|
|
#endif
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
void draw_pt_destroy( struct draw_context *draw )
|
|
{
|
|
if (draw->pt.middle.llvm) {
|
|
draw->pt.middle.llvm->destroy( draw->pt.middle.llvm );
|
|
draw->pt.middle.llvm = NULL;
|
|
}
|
|
|
|
if (draw->pt.middle.general) {
|
|
draw->pt.middle.general->destroy( draw->pt.middle.general );
|
|
draw->pt.middle.general = NULL;
|
|
}
|
|
|
|
if (draw->pt.middle.fetch_emit) {
|
|
draw->pt.middle.fetch_emit->destroy( draw->pt.middle.fetch_emit );
|
|
draw->pt.middle.fetch_emit = NULL;
|
|
}
|
|
|
|
if (draw->pt.middle.fetch_shade_emit) {
|
|
draw->pt.middle.fetch_shade_emit->destroy( draw->pt.middle.fetch_shade_emit );
|
|
draw->pt.middle.fetch_shade_emit = NULL;
|
|
}
|
|
|
|
if (draw->pt.front.vsplit) {
|
|
draw->pt.front.vsplit->destroy( draw->pt.front.vsplit );
|
|
draw->pt.front.vsplit = NULL;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Debug- print the first 'count' vertices.
|
|
*/
|
|
static void
|
|
draw_print_arrays(struct draw_context *draw, uint prim, int start, uint count)
|
|
{
|
|
uint i;
|
|
|
|
debug_printf("Draw arrays(prim = %u, start = %u, count = %u)\n",
|
|
prim, start, count);
|
|
|
|
for (i = 0; i < count; i++) {
|
|
uint ii = 0;
|
|
uint j;
|
|
|
|
if (draw->pt.user.eltSize) {
|
|
/* indexed arrays */
|
|
|
|
switch (draw->pt.user.eltSize) {
|
|
case 1:
|
|
{
|
|
const ubyte *elem = (const ubyte *) draw->pt.user.elts;
|
|
ii = elem[start + i];
|
|
}
|
|
break;
|
|
case 2:
|
|
{
|
|
const ushort *elem = (const ushort *) draw->pt.user.elts;
|
|
ii = elem[start + i];
|
|
}
|
|
break;
|
|
case 4:
|
|
{
|
|
const uint *elem = (const uint *) draw->pt.user.elts;
|
|
ii = elem[start + i];
|
|
}
|
|
break;
|
|
default:
|
|
assert(0);
|
|
return;
|
|
}
|
|
ii += draw->pt.user.eltBias;
|
|
debug_printf("Element[%u + %u] + %i -> Vertex %u:\n", start, i,
|
|
draw->pt.user.eltBias, ii);
|
|
}
|
|
else {
|
|
/* non-indexed arrays */
|
|
ii = start + i;
|
|
debug_printf("Vertex %u:\n", ii);
|
|
}
|
|
|
|
for (j = 0; j < draw->pt.nr_vertex_elements; j++) {
|
|
uint buf = draw->pt.vertex_element[j].vertex_buffer_index;
|
|
ubyte *ptr = (ubyte *) draw->pt.user.vbuffer[buf].map;
|
|
|
|
if (draw->pt.vertex_element[j].instance_divisor) {
|
|
ii = draw->instance_id / draw->pt.vertex_element[j].instance_divisor;
|
|
}
|
|
|
|
ptr += draw->pt.vertex_buffer[buf].buffer_offset;
|
|
ptr += draw->pt.vertex_buffer[buf].stride * ii;
|
|
ptr += draw->pt.vertex_element[j].src_offset;
|
|
|
|
debug_printf(" Attr %u: ", j);
|
|
switch (draw->pt.vertex_element[j].src_format) {
|
|
case PIPE_FORMAT_R32_FLOAT:
|
|
{
|
|
float *v = (float *) ptr;
|
|
debug_printf("R %f @ %p\n", v[0], (void *) v);
|
|
}
|
|
break;
|
|
case PIPE_FORMAT_R32G32_FLOAT:
|
|
{
|
|
float *v = (float *) ptr;
|
|
debug_printf("RG %f %f @ %p\n", v[0], v[1], (void *) v);
|
|
}
|
|
break;
|
|
case PIPE_FORMAT_R32G32B32_FLOAT:
|
|
{
|
|
float *v = (float *) ptr;
|
|
debug_printf("RGB %f %f %f @ %p\n", v[0], v[1], v[2], (void *) v);
|
|
}
|
|
break;
|
|
case PIPE_FORMAT_R32G32B32A32_FLOAT:
|
|
{
|
|
float *v = (float *) ptr;
|
|
debug_printf("RGBA %f %f %f %f @ %p\n", v[0], v[1], v[2], v[3],
|
|
(void *) v);
|
|
}
|
|
break;
|
|
case PIPE_FORMAT_B8G8R8A8_UNORM:
|
|
{
|
|
ubyte *u = (ubyte *) ptr;
|
|
debug_printf("BGRA %d %d %d %d @ %p\n", u[0], u[1], u[2], u[3],
|
|
(void *) u);
|
|
}
|
|
break;
|
|
case PIPE_FORMAT_A8R8G8B8_UNORM:
|
|
{
|
|
ubyte *u = (ubyte *) ptr;
|
|
debug_printf("ARGB %d %d %d %d @ %p\n", u[0], u[1], u[2], u[3],
|
|
(void *) u);
|
|
}
|
|
break;
|
|
default:
|
|
debug_printf("other format %s (fix me)\n",
|
|
util_format_name(draw->pt.vertex_element[j].src_format));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/** Helper code for below */
|
|
#define PRIM_RESTART_LOOP(elements) \
|
|
do { \
|
|
for (j = 0; j < count; j++) { \
|
|
i = draw_overflow_uadd(start, j, MAX_LOOP_IDX); \
|
|
if (i < elt_max && elements[i] == info->restart_index) { \
|
|
if (cur_count > 0) { \
|
|
/* draw elts up to prev pos */ \
|
|
draw_pt_arrays(draw, prim, cur_start, cur_count); \
|
|
} \
|
|
/* begin new prim at next elt */ \
|
|
cur_start = i + 1; \
|
|
cur_count = 0; \
|
|
} \
|
|
else { \
|
|
cur_count++; \
|
|
} \
|
|
} \
|
|
if (cur_count > 0) { \
|
|
draw_pt_arrays(draw, prim, cur_start, cur_count); \
|
|
} \
|
|
} while (0)
|
|
|
|
|
|
/**
|
|
* For drawing prims with primitive restart enabled.
|
|
* Scan for restart indexes and draw the runs of elements/vertices between
|
|
* the restarts.
|
|
*/
|
|
static void
|
|
draw_pt_arrays_restart(struct draw_context *draw,
|
|
const struct pipe_draw_info *info)
|
|
{
|
|
const unsigned prim = info->mode;
|
|
const unsigned start = info->start;
|
|
const unsigned count = info->count;
|
|
const unsigned elt_max = draw->pt.user.eltMax;
|
|
unsigned i, j, cur_start, cur_count;
|
|
/* The largest index within a loop using the i variable as the index.
|
|
* Used for overflow detection */
|
|
const unsigned MAX_LOOP_IDX = 0xffffffff;
|
|
|
|
assert(info->primitive_restart);
|
|
|
|
if (draw->pt.user.eltSize) {
|
|
/* indexed prims (draw_elements) */
|
|
cur_start = start;
|
|
cur_count = 0;
|
|
|
|
switch (draw->pt.user.eltSize) {
|
|
case 1:
|
|
{
|
|
const ubyte *elt_ub = (const ubyte *) draw->pt.user.elts;
|
|
PRIM_RESTART_LOOP(elt_ub);
|
|
}
|
|
break;
|
|
case 2:
|
|
{
|
|
const ushort *elt_us = (const ushort *) draw->pt.user.elts;
|
|
PRIM_RESTART_LOOP(elt_us);
|
|
}
|
|
break;
|
|
case 4:
|
|
{
|
|
const uint *elt_ui = (const uint *) draw->pt.user.elts;
|
|
PRIM_RESTART_LOOP(elt_ui);
|
|
}
|
|
break;
|
|
default:
|
|
assert(0 && "bad eltSize in draw_arrays()");
|
|
}
|
|
}
|
|
else {
|
|
/* Non-indexed prims (draw_arrays).
|
|
* Primitive restart should have been handled in the state tracker.
|
|
*/
|
|
draw_pt_arrays(draw, prim, start, count);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Resolve true values within pipe_draw_info.
|
|
* If we're rendering from transform feedback/stream output
|
|
* buffers both the count and max_index need to be computed
|
|
* from the attached stream output target.
|
|
*/
|
|
static void
|
|
resolve_draw_info(const struct pipe_draw_info *raw_info,
|
|
struct pipe_draw_info *info)
|
|
{
|
|
memcpy(info, raw_info, sizeof(struct pipe_draw_info));
|
|
|
|
if (raw_info->count_from_stream_output) {
|
|
struct draw_so_target *target =
|
|
(struct draw_so_target *)info->count_from_stream_output;
|
|
info->count = target->emitted_vertices;
|
|
|
|
/* Stream output draw can not be indexed */
|
|
debug_assert(!info->indexed);
|
|
info->max_index = info->count - 1;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Draw vertex arrays.
|
|
* This is the main entrypoint into the drawing module. If drawing an indexed
|
|
* primitive, the draw_set_indexes() function should have already been called
|
|
* to specify the element/index buffer information.
|
|
*/
|
|
void
|
|
draw_vbo(struct draw_context *draw,
|
|
const struct pipe_draw_info *info)
|
|
{
|
|
unsigned instance;
|
|
unsigned index_limit;
|
|
unsigned count;
|
|
struct pipe_draw_info resolved_info;
|
|
|
|
resolve_draw_info(info, &resolved_info);
|
|
info = &resolved_info;
|
|
|
|
assert(info->instance_count > 0);
|
|
if (info->indexed)
|
|
assert(draw->pt.user.elts);
|
|
|
|
count = info->count;
|
|
|
|
draw->pt.user.eltBias = info->index_bias;
|
|
draw->pt.user.min_index = info->min_index;
|
|
draw->pt.user.max_index = info->max_index;
|
|
draw->pt.user.eltSize = info->indexed ? draw->pt.user.eltSizeIB : 0;
|
|
|
|
if (0)
|
|
debug_printf("draw_vbo(mode=%u start=%u count=%u):\n",
|
|
info->mode, info->start, count);
|
|
|
|
if (0)
|
|
tgsi_dump(draw->vs.vertex_shader->state.tokens, 0);
|
|
|
|
if (0) {
|
|
unsigned int i;
|
|
debug_printf("Elements:\n");
|
|
for (i = 0; i < draw->pt.nr_vertex_elements; i++) {
|
|
debug_printf(" %u: src_offset=%u inst_div=%u vbuf=%u format=%s\n",
|
|
i,
|
|
draw->pt.vertex_element[i].src_offset,
|
|
draw->pt.vertex_element[i].instance_divisor,
|
|
draw->pt.vertex_element[i].vertex_buffer_index,
|
|
util_format_name(draw->pt.vertex_element[i].src_format));
|
|
}
|
|
debug_printf("Buffers:\n");
|
|
for (i = 0; i < draw->pt.nr_vertex_buffers; i++) {
|
|
debug_printf(" %u: stride=%u offset=%u size=%d ptr=%p\n",
|
|
i,
|
|
draw->pt.vertex_buffer[i].stride,
|
|
draw->pt.vertex_buffer[i].buffer_offset,
|
|
(int) draw->pt.user.vbuffer[i].size,
|
|
draw->pt.user.vbuffer[i].map);
|
|
}
|
|
}
|
|
|
|
if (0)
|
|
draw_print_arrays(draw, info->mode, info->start, MIN2(count, 20));
|
|
|
|
index_limit = util_draw_max_index(draw->pt.vertex_buffer,
|
|
draw->pt.vertex_element,
|
|
draw->pt.nr_vertex_elements,
|
|
info);
|
|
#if HAVE_LLVM
|
|
if (!draw->llvm)
|
|
#endif
|
|
{
|
|
if (index_limit == 0) {
|
|
/* one of the buffers is too small to do any valid drawing */
|
|
debug_warning("draw: VBO too small to draw anything\n");
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* If we're collecting stats then make sure we start from scratch */
|
|
if (draw->collect_statistics) {
|
|
memset(&draw->statistics, 0, sizeof(draw->statistics));
|
|
}
|
|
|
|
draw->pt.max_index = index_limit - 1;
|
|
|
|
/*
|
|
* TODO: We could use draw->pt.max_index to further narrow
|
|
* the min_index/max_index hints given by the state tracker.
|
|
*/
|
|
|
|
for (instance = 0; instance < info->instance_count; instance++) {
|
|
draw->instance_id = instance + info->start_instance;
|
|
draw->start_instance = info->start_instance;
|
|
/* check for overflow */
|
|
if (draw->instance_id < instance ||
|
|
draw->instance_id < info->start_instance) {
|
|
/* if we overflown just set the instance id to the max */
|
|
draw->instance_id = 0xffffffff;
|
|
}
|
|
|
|
draw_new_instance(draw);
|
|
|
|
if (info->primitive_restart) {
|
|
draw_pt_arrays_restart(draw, info);
|
|
}
|
|
else {
|
|
draw_pt_arrays(draw, info->mode, info->start, count);
|
|
}
|
|
}
|
|
|
|
/* If requested emit the pipeline statistics for this run */
|
|
if (draw->collect_statistics) {
|
|
draw->render->pipeline_statistics(draw->render, &draw->statistics);
|
|
}
|
|
}
|