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/*
* Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
*
* 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 (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 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:
* Rob Clark <robclark@freedesktop.org>
*/
#include "pipe/p_state.h"
#include "util/u_string.h"
#include "util/u_memory.h"
#include "util/u_prim.h"
#include "util/format/u_format.h"
#include "freedreno_state.h"
#include "freedreno_resource.h"
#include "fd3_draw.h"
#include "fd3_context.h"
#include "fd3_emit.h"
#include "fd3_program.h"
#include "fd3_format.h"
#include "fd3_zsa.h"
static inline uint32_t
add_sat(uint32_t a, int32_t b)
{
int64_t ret = (uint64_t)a + (int64_t)b;
if (ret > ~0U)
return ~0U;
if (ret < 0)
return 0;
return (uint32_t)ret;
}
static void
draw_impl(struct fd_context *ctx, struct fd_ringbuffer *ring,
struct fd3_emit *emit, unsigned index_offset)
{
const struct pipe_draw_info *info = emit->info;
enum pc_di_primtype primtype = ctx->primtypes[info->mode];
fd3_emit_state(ctx, ring, emit);
if (emit->dirty & (FD_DIRTY_VTXBUF | FD_DIRTY_VTXSTATE))
fd3_emit_vertex_bufs(ring, emit);
OUT_PKT0(ring, REG_A3XX_PC_VERTEX_REUSE_BLOCK_CNTL, 1);
OUT_RING(ring, 0x0000000b); /* PC_VERTEX_REUSE_BLOCK_CNTL */
OUT_PKT0(ring, REG_A3XX_VFD_INDEX_MIN, 4);
OUT_RING(ring, info->index_bounds_valid ? add_sat(info->min_index, info->index_size ? info->index_bias : 0) : 0); /* VFD_INDEX_MIN */
OUT_RING(ring, info->index_bounds_valid ? add_sat(info->max_index, info->index_size ? info->index_bias : 0) : ~0); /* VFD_INDEX_MAX */
OUT_RING(ring, info->start_instance); /* VFD_INSTANCEID_OFFSET */
OUT_RING(ring, info->index_size ? info->index_bias : emit->draw->start); /* VFD_INDEX_OFFSET */
OUT_PKT0(ring, REG_A3XX_PC_RESTART_INDEX, 1);
OUT_RING(ring, info->primitive_restart ? /* PC_RESTART_INDEX */
info->restart_index : 0xffffffff);
/* points + psize -> spritelist: */
if (ctx->rasterizer->point_size_per_vertex &&
fd3_emit_get_vp(emit)->writes_psize &&
(info->mode == PIPE_PRIM_POINTS))
primtype = DI_PT_POINTLIST_PSIZE;
fd_draw_emit(ctx->batch, ring, primtype,
emit->binning_pass ? IGNORE_VISIBILITY : USE_VISIBILITY,
info, emit->draw, index_offset);
}
/* fixup dirty shader state in case some "unrelated" (from the state-
* tracker's perspective) state change causes us to switch to a
* different variant.
*/
static void
fixup_shader_state(struct fd_context *ctx, struct ir3_shader_key *key)
{
struct fd3_context *fd3_ctx = fd3_context(ctx);
struct ir3_shader_key *last_key = &fd3_ctx->last_key;
if (!ir3_shader_key_equal(last_key, key)) {
if (ir3_shader_key_changes_fs(last_key, key)) {
ctx->dirty_shader[PIPE_SHADER_FRAGMENT] |= FD_DIRTY_SHADER_PROG;
ctx->dirty |= FD_DIRTY_PROG;
}
if (ir3_shader_key_changes_vs(last_key, key)) {
ctx->dirty_shader[PIPE_SHADER_VERTEX] |= FD_DIRTY_SHADER_PROG;
ctx->dirty |= FD_DIRTY_PROG;
}
fd3_ctx->last_key = *key;
}
}
static bool
fd3_draw_vbo(struct fd_context *ctx, const struct pipe_draw_info *info,
const struct pipe_draw_indirect_info *indirect,
const struct pipe_draw_start_count *draw,
unsigned index_offset)
{
struct fd3_context *fd3_ctx = fd3_context(ctx);
struct fd3_emit emit = {
.debug = &ctx->debug,
.vtx = &ctx->vtx,
.prog = &ctx->prog,
.info = info,
.indirect = indirect,
.draw = draw,
.key = {
.color_two_side = ctx->rasterizer->light_twoside,
.vclamp_color = ctx->rasterizer->clamp_vertex_color,
.fclamp_color = ctx->rasterizer->clamp_fragment_color,
.has_per_samp = (fd3_ctx->fsaturate || fd3_ctx->vsaturate),
.vsaturate_s = fd3_ctx->vsaturate_s,
.vsaturate_t = fd3_ctx->vsaturate_t,
.vsaturate_r = fd3_ctx->vsaturate_r,
.fsaturate_s = fd3_ctx->fsaturate_s,
.fsaturate_t = fd3_ctx->fsaturate_t,
.fsaturate_r = fd3_ctx->fsaturate_r,
},
.rasterflat = ctx->rasterizer->flatshade,
.sprite_coord_enable = ctx->rasterizer->sprite_coord_enable,
.sprite_coord_mode = ctx->rasterizer->sprite_coord_mode,
};
if (fd3_needs_manual_clipping(ir3_get_shader(ctx->prog.vs), ctx->rasterizer))
emit.key.ucp_enables = ctx->rasterizer->clip_plane_enable;
fixup_shader_state(ctx, &emit.key);
unsigned dirty = ctx->dirty;
const struct ir3_shader_variant *vp = fd3_emit_get_vp(&emit);
const struct ir3_shader_variant *fp = fd3_emit_get_fp(&emit);
/* do regular pass first, since that is more likely to fail compiling: */
if (!vp || !fp)
return false;
ctx->stats.vs_regs += ir3_shader_halfregs(vp);
ctx->stats.fs_regs += ir3_shader_halfregs(fp);
emit.binning_pass = false;
emit.dirty = dirty;
draw_impl(ctx, ctx->batch->draw, &emit, index_offset);
/* and now binning pass: */
emit.binning_pass = true;
emit.dirty = dirty & ~(FD_DIRTY_BLEND);
emit.vs = NULL; /* we changed key so need to refetch vs */
emit.fs = NULL;
draw_impl(ctx, ctx->batch->binning, &emit, index_offset);
fd_context_all_clean(ctx);
return true;
}
void
fd3_draw_init(struct pipe_context *pctx)
{
struct fd_context *ctx = fd_context(pctx);
ctx->draw_vbo = fd3_draw_vbo;
}
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