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/*
* Copyright 2012 Red Hat Inc.
*
* 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, sublicense,
* 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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: Ben Skeggs
*
*/
#include "draw/draw_context.h"
#include "tgsi/tgsi_parse.h"
#include "nv_object.xml.h"
#include "nv30/nv30-40_3d.xml.h"
#include "nv30/nv30_context.h"
#include "nv30/nvfx_shader.h"
static void
nv30_fragprog_upload(struct nv30_context *nv30)
{
struct nouveau_context *nv = &nv30->base;
struct nv30_fragprog *fp = nv30->fragprog.program;
struct pipe_context *pipe = &nv30->base.pipe;
if (unlikely(!fp->buffer))
fp->buffer = pipe_buffer_create(pipe->screen, 0, 0, fp->insn_len * 4);
#if !UTIL_ARCH_BIG_ENDIAN
pipe_buffer_write(pipe, fp->buffer, 0, fp->insn_len * 4, fp->insn);
#else
{
struct pipe_transfer *transfer;
uint32_t *map;
int i;
map = pipe_buffer_map(pipe, fp->buffer,
PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE,
&transfer);
for (i = 0; i < fp->insn_len; i++)
*map++ = (fp->insn[i] >> 16) | (fp->insn[i] << 16);
pipe_buffer_unmap(pipe, transfer);
}
#endif
if (nv04_resource(fp->buffer)->domain != NOUVEAU_BO_VRAM)
nouveau_buffer_migrate(nv, nv04_resource(fp->buffer), NOUVEAU_BO_VRAM);
}
void
nv30_fragprog_validate(struct nv30_context *nv30)
{
struct nouveau_pushbuf *push = nv30->base.pushbuf;
struct nouveau_object *eng3d = nv30->screen->eng3d;
struct nv30_fragprog *fp = nv30->fragprog.program;
bool upload = false;
int i;
if (!fp->translated) {
_nvfx_fragprog_translate(eng3d->oclass, fp);
if (!fp->translated)
return;
upload = true;
}
/* update constants, also needs to be done on every fp switch as we
* have no idea whether the constbuf changed in the meantime
*/
if (nv30->fragprog.constbuf) {
struct pipe_resource *constbuf = nv30->fragprog.constbuf;
uint32_t *cbuf = (uint32_t *)nv04_resource(constbuf)->data;
for (i = 0; i < fp->nr_consts; i++) {
unsigned off = fp->consts[i].offset;
unsigned idx = fp->consts[i].index * 4;
if (!memcmp(&fp->insn[off], &cbuf[idx], 4 * 4))
continue;
memcpy(&fp->insn[off], &cbuf[idx], 4 * 4);
upload = true;
}
}
if (upload)
nv30_fragprog_upload(nv30);
/* FP_ACTIVE_PROGRAM needs to be done again even if only the consts
* were updated. TEX_CACHE_CTL magic is not enough to convince the
* GPU that it should re-read the fragprog from VRAM... sigh.
*/
if (nv30->state.fragprog != fp || upload) {
struct nv04_resource *r = nv04_resource(fp->buffer);
if (!PUSH_SPACE(push, 8))
return;
PUSH_RESET(push, BUFCTX_FRAGPROG);
BEGIN_NV04(push, NV30_3D(FP_ACTIVE_PROGRAM), 1);
PUSH_RESRC(push, NV30_3D(FP_ACTIVE_PROGRAM), BUFCTX_FRAGPROG, r, 0,
NOUVEAU_BO_LOW | NOUVEAU_BO_RD | NOUVEAU_BO_OR,
NV30_3D_FP_ACTIVE_PROGRAM_DMA0,
NV30_3D_FP_ACTIVE_PROGRAM_DMA1);
BEGIN_NV04(push, NV30_3D(FP_CONTROL), 1);
PUSH_DATA (push, fp->fp_control);
if (eng3d->oclass < NV40_3D_CLASS) {
BEGIN_NV04(push, NV30_3D(FP_REG_CONTROL), 1);
PUSH_DATA (push, 0x00010004);
BEGIN_NV04(push, NV30_3D(TEX_UNITS_ENABLE), 1);
PUSH_DATA (push, fp->texcoords);
} else {
BEGIN_NV04(push, SUBC_3D(0x0b40), 1);
PUSH_DATA (push, 0x00000000);
}
nv30->state.fragprog = fp;
}
}
static void *
nv30_fp_state_create(struct pipe_context *pipe,
const struct pipe_shader_state *cso)
{
struct nv30_fragprog *fp = CALLOC_STRUCT(nv30_fragprog);
if (!fp)
return NULL;
fp->pipe.tokens = tgsi_dup_tokens(cso->tokens);
tgsi_scan_shader(fp->pipe.tokens, &fp->info);
return fp;
}
static void
nv30_fp_state_delete(struct pipe_context *pipe, void *hwcso)
{
struct nv30_fragprog *fp = hwcso;
pipe_resource_reference(&fp->buffer, NULL);
if (fp->draw)
draw_delete_fragment_shader(nv30_context(pipe)->draw, fp->draw);
FREE((void *)fp->pipe.tokens);
FREE(fp->insn);
FREE(fp->consts);
FREE(fp);
}
static void
nv30_fp_state_bind(struct pipe_context *pipe, void *hwcso)
{
struct nv30_context *nv30 = nv30_context(pipe);
struct nv30_fragprog *fp = hwcso;
/* reset the bucftx so that we don't keep a dangling reference to the fp
* code
*/
if (fp != nv30->state.fragprog)
nouveau_bufctx_reset(nv30->bufctx, BUFCTX_FRAGPROG);
nv30->fragprog.program = fp;
nv30->dirty |= NV30_NEW_FRAGPROG;
}
void
nv30_fragprog_init(struct pipe_context *pipe)
{
pipe->create_fs_state = nv30_fp_state_create;
pipe->bind_fs_state = nv30_fp_state_bind;
pipe->delete_fs_state = nv30_fp_state_delete;
}
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