forked from KolibriOS/kolibrios
371 lines
12 KiB
C
371 lines
12 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 "util/u_memory.h"
|
|
#include "util/u_math.h"
|
|
#include "draw/draw_context.h"
|
|
#include "draw/draw_private.h"
|
|
#include "draw/draw_vbuf.h"
|
|
#include "draw/draw_vertex.h"
|
|
#include "draw/draw_vs.h"
|
|
#include "translate/translate.h"
|
|
|
|
/* A first pass at incorporating vertex fetch/emit functionality into
|
|
*/
|
|
struct draw_vs_variant_generic {
|
|
struct draw_vs_variant base;
|
|
|
|
struct draw_vertex_shader *shader;
|
|
struct draw_context *draw;
|
|
|
|
/* Basic plan is to run these two translate functions before/after
|
|
* the vertex shader's existing run_linear() routine to simulate
|
|
* the inclusion of this functionality into the shader...
|
|
*
|
|
* Next will look at actually including it.
|
|
*/
|
|
struct translate *fetch;
|
|
struct translate *emit;
|
|
|
|
unsigned temp_vertex_stride;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static void vsvg_set_buffer( struct draw_vs_variant *variant,
|
|
unsigned buffer,
|
|
const void *ptr,
|
|
unsigned stride,
|
|
unsigned max_index )
|
|
{
|
|
struct draw_vs_variant_generic *vsvg = (struct draw_vs_variant_generic *)variant;
|
|
|
|
vsvg->fetch->set_buffer(vsvg->fetch,
|
|
buffer,
|
|
ptr,
|
|
stride,
|
|
max_index );
|
|
}
|
|
|
|
static const struct pipe_viewport_state *
|
|
find_viewport(struct draw_context *draw,
|
|
char *buffer,
|
|
unsigned vertex_idx,
|
|
unsigned stride)
|
|
{
|
|
int viewport_index_output =
|
|
draw_current_shader_viewport_index_output(draw);
|
|
char *ptr = buffer + vertex_idx * stride;
|
|
unsigned *data = (unsigned *)ptr;
|
|
int viewport_index =
|
|
draw_current_shader_uses_viewport_index(draw) ?
|
|
data[viewport_index_output * 4] : 0;
|
|
|
|
viewport_index = draw_clamp_viewport_idx(viewport_index);
|
|
|
|
return &draw->viewports[viewport_index];
|
|
}
|
|
|
|
|
|
/* Mainly for debug at this stage:
|
|
*/
|
|
static void do_rhw_viewport( struct draw_vs_variant_generic *vsvg,
|
|
unsigned count,
|
|
void *output_buffer )
|
|
{
|
|
char *ptr = (char *)output_buffer;
|
|
unsigned stride = vsvg->temp_vertex_stride;
|
|
unsigned j;
|
|
|
|
ptr += vsvg->base.vs->position_output * 4 * sizeof(float);
|
|
|
|
for (j = 0; j < count; j++, ptr += stride) {
|
|
const struct pipe_viewport_state *viewport =
|
|
find_viewport(vsvg->base.vs->draw, (char*)output_buffer,
|
|
j, stride);
|
|
const float *scale = viewport->scale;
|
|
const float *trans = viewport->translate;
|
|
float *data = (float *)ptr;
|
|
float w = 1.0f / data[3];
|
|
|
|
data[0] = data[0] * w * scale[0] + trans[0];
|
|
data[1] = data[1] * w * scale[1] + trans[1];
|
|
data[2] = data[2] * w * scale[2] + trans[2];
|
|
data[3] = w;
|
|
}
|
|
}
|
|
|
|
static void do_viewport( struct draw_vs_variant_generic *vsvg,
|
|
unsigned count,
|
|
void *output_buffer )
|
|
{
|
|
char *ptr = (char *)output_buffer;
|
|
unsigned stride = vsvg->temp_vertex_stride;
|
|
unsigned j;
|
|
|
|
ptr += vsvg->base.vs->position_output * 4 * sizeof(float);
|
|
|
|
for (j = 0; j < count; j++, ptr += stride) {
|
|
const struct pipe_viewport_state *viewport =
|
|
find_viewport(vsvg->base.vs->draw, (char*)output_buffer,
|
|
j, stride);
|
|
const float *scale = viewport->scale;
|
|
const float *trans = viewport->translate;
|
|
float *data = (float *)ptr;
|
|
|
|
data[0] = data[0] * scale[0] + trans[0];
|
|
data[1] = data[1] * scale[1] + trans[1];
|
|
data[2] = data[2] * scale[2] + trans[2];
|
|
}
|
|
}
|
|
|
|
|
|
static void PIPE_CDECL vsvg_run_elts( struct draw_vs_variant *variant,
|
|
const unsigned *elts,
|
|
unsigned count,
|
|
void *output_buffer)
|
|
{
|
|
struct draw_vs_variant_generic *vsvg = (struct draw_vs_variant_generic *)variant;
|
|
unsigned temp_vertex_stride = vsvg->temp_vertex_stride;
|
|
void *temp_buffer = MALLOC( align(count,4) * temp_vertex_stride );
|
|
|
|
if (0) debug_printf("%s %d \n", __FUNCTION__, count);
|
|
|
|
/* Want to do this in small batches for cache locality?
|
|
*/
|
|
|
|
vsvg->fetch->run_elts( vsvg->fetch,
|
|
elts,
|
|
count,
|
|
vsvg->draw->start_instance,
|
|
vsvg->draw->instance_id,
|
|
temp_buffer );
|
|
|
|
vsvg->base.vs->run_linear( vsvg->base.vs,
|
|
temp_buffer,
|
|
temp_buffer,
|
|
vsvg->base.vs->draw->pt.user.vs_constants,
|
|
vsvg->base.vs->draw->pt.user.vs_constants_size,
|
|
count,
|
|
temp_vertex_stride,
|
|
temp_vertex_stride);
|
|
|
|
/* FIXME: geometry shading? */
|
|
|
|
if (vsvg->base.key.clip) {
|
|
/* not really handling clipping, just do the rhw so we can
|
|
* see the results...
|
|
*/
|
|
do_rhw_viewport( vsvg,
|
|
count,
|
|
temp_buffer );
|
|
}
|
|
else if (vsvg->base.key.viewport) {
|
|
do_viewport( vsvg,
|
|
count,
|
|
temp_buffer );
|
|
}
|
|
|
|
|
|
vsvg->emit->set_buffer( vsvg->emit,
|
|
0,
|
|
temp_buffer,
|
|
temp_vertex_stride,
|
|
~0 );
|
|
|
|
vsvg->emit->set_buffer( vsvg->emit,
|
|
1,
|
|
&vsvg->draw->rasterizer->point_size,
|
|
0,
|
|
~0 );
|
|
|
|
vsvg->emit->run( vsvg->emit,
|
|
0, count,
|
|
vsvg->draw->start_instance,
|
|
vsvg->draw->instance_id,
|
|
output_buffer );
|
|
|
|
FREE(temp_buffer);
|
|
}
|
|
|
|
|
|
static void PIPE_CDECL vsvg_run_linear( struct draw_vs_variant *variant,
|
|
unsigned start,
|
|
unsigned count,
|
|
void *output_buffer )
|
|
{
|
|
struct draw_vs_variant_generic *vsvg = (struct draw_vs_variant_generic *)variant;
|
|
unsigned temp_vertex_stride = vsvg->temp_vertex_stride;
|
|
void *temp_buffer = MALLOC( align(count,4) * temp_vertex_stride );
|
|
|
|
if (0) debug_printf("%s %d %d (sz %d, %d)\n", __FUNCTION__, start, count,
|
|
vsvg->base.key.output_stride,
|
|
temp_vertex_stride);
|
|
|
|
vsvg->fetch->run( vsvg->fetch,
|
|
start,
|
|
count,
|
|
vsvg->draw->start_instance,
|
|
vsvg->draw->instance_id,
|
|
temp_buffer );
|
|
|
|
vsvg->base.vs->run_linear( vsvg->base.vs,
|
|
temp_buffer,
|
|
temp_buffer,
|
|
vsvg->base.vs->draw->pt.user.vs_constants,
|
|
vsvg->base.vs->draw->pt.user.vs_constants_size,
|
|
count,
|
|
temp_vertex_stride,
|
|
temp_vertex_stride);
|
|
|
|
if (vsvg->base.key.clip) {
|
|
/* not really handling clipping, just do the rhw so we can
|
|
* see the results...
|
|
*/
|
|
do_rhw_viewport( vsvg,
|
|
count,
|
|
temp_buffer );
|
|
}
|
|
else if (vsvg->base.key.viewport) {
|
|
do_viewport( vsvg,
|
|
count,
|
|
temp_buffer );
|
|
}
|
|
|
|
vsvg->emit->set_buffer( vsvg->emit,
|
|
0,
|
|
temp_buffer,
|
|
temp_vertex_stride,
|
|
~0 );
|
|
|
|
vsvg->emit->set_buffer( vsvg->emit,
|
|
1,
|
|
&vsvg->draw->rasterizer->point_size,
|
|
0,
|
|
~0 );
|
|
|
|
vsvg->emit->run( vsvg->emit,
|
|
0, count,
|
|
vsvg->draw->start_instance,
|
|
vsvg->draw->instance_id,
|
|
output_buffer );
|
|
|
|
FREE(temp_buffer);
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void vsvg_destroy( struct draw_vs_variant *variant )
|
|
{
|
|
FREE(variant);
|
|
}
|
|
|
|
|
|
struct draw_vs_variant *
|
|
draw_vs_create_variant_generic( struct draw_vertex_shader *vs,
|
|
const struct draw_vs_variant_key *key )
|
|
{
|
|
unsigned i;
|
|
struct translate_key fetch, emit;
|
|
|
|
struct draw_vs_variant_generic *vsvg = CALLOC_STRUCT( draw_vs_variant_generic );
|
|
if (vsvg == NULL)
|
|
return NULL;
|
|
|
|
vsvg->base.key = *key;
|
|
vsvg->base.vs = vs;
|
|
vsvg->base.set_buffer = vsvg_set_buffer;
|
|
vsvg->base.run_elts = vsvg_run_elts;
|
|
vsvg->base.run_linear = vsvg_run_linear;
|
|
vsvg->base.destroy = vsvg_destroy;
|
|
|
|
vsvg->draw = vs->draw;
|
|
|
|
vsvg->temp_vertex_stride = MAX2(key->nr_inputs,
|
|
vsvg->base.vs->info.num_outputs) * 4 * sizeof(float);
|
|
|
|
/* Build free-standing fetch and emit functions:
|
|
*/
|
|
fetch.nr_elements = key->nr_inputs;
|
|
fetch.output_stride = vsvg->temp_vertex_stride;
|
|
for (i = 0; i < key->nr_inputs; i++) {
|
|
fetch.element[i].type = TRANSLATE_ELEMENT_NORMAL;
|
|
fetch.element[i].input_format = key->element[i].in.format;
|
|
fetch.element[i].input_buffer = key->element[i].in.buffer;
|
|
fetch.element[i].input_offset = key->element[i].in.offset;
|
|
fetch.element[i].instance_divisor = 0;
|
|
fetch.element[i].output_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
|
|
fetch.element[i].output_offset = i * 4 * sizeof(float);
|
|
assert(fetch.element[i].output_offset < fetch.output_stride);
|
|
}
|
|
|
|
|
|
emit.nr_elements = key->nr_outputs;
|
|
emit.output_stride = key->output_stride;
|
|
for (i = 0; i < key->nr_outputs; i++) {
|
|
if (key->element[i].out.format != EMIT_1F_PSIZE)
|
|
{
|
|
emit.element[i].type = TRANSLATE_ELEMENT_NORMAL;
|
|
emit.element[i].input_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
|
|
emit.element[i].input_buffer = 0;
|
|
emit.element[i].input_offset = key->element[i].out.vs_output * 4 * sizeof(float);
|
|
emit.element[i].instance_divisor = 0;
|
|
emit.element[i].output_format = draw_translate_vinfo_format(key->element[i].out.format);
|
|
emit.element[i].output_offset = key->element[i].out.offset;
|
|
assert(emit.element[i].input_offset <= fetch.output_stride);
|
|
}
|
|
else {
|
|
emit.element[i].type = TRANSLATE_ELEMENT_NORMAL;
|
|
emit.element[i].input_format = PIPE_FORMAT_R32_FLOAT;
|
|
emit.element[i].input_buffer = 1;
|
|
emit.element[i].input_offset = 0;
|
|
emit.element[i].instance_divisor = 0;
|
|
emit.element[i].output_format = PIPE_FORMAT_R32_FLOAT;
|
|
emit.element[i].output_offset = key->element[i].out.offset;
|
|
}
|
|
}
|
|
|
|
vsvg->fetch = draw_vs_get_fetch( vs->draw, &fetch );
|
|
vsvg->emit = draw_vs_get_emit( vs->draw, &emit );
|
|
|
|
return &vsvg->base;
|
|
}
|
|
|
|
|
|
|
|
|
|
|