/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* Copyright (C) 2012 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/u_format.h"
#include "freedreno_draw.h"
#include "freedreno_context.h"
#include "freedreno_state.h"
#include "freedreno_resource.h"
#include "freedreno_query_hw.h"
#include "freedreno_util.h"
static void
resource_reading(struct fd_context *ctx, struct pipe_resource *prsc)
{
struct fd_resource *rsc;
if (!prsc)
return;
rsc = fd_resource(prsc);
rsc->reading = true;
list_delinit(&rsc->list);
list_addtail(&rsc->list, &ctx->used_resources);
}
static void
fd_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info)
{
struct fd_context *ctx = fd_context(pctx);
struct pipe_framebuffer_state *pfb = &ctx->framebuffer;
struct pipe_scissor_state *scissor = fd_context_get_scissor(ctx);
unsigned i, buffers = 0;
/* if we supported transform feedback, we'd have to disable this: */
if (((scissor->maxx - scissor->minx) *
(scissor->maxy - scissor->miny)) == 0) {
return;
}
/* emulate unsupported primitives: */
if (!fd_supported_prim(ctx, info->mode)) {
util_primconvert_save_index_buffer(ctx->primconvert, &ctx->indexbuf);
util_primconvert_save_rasterizer_state(ctx->primconvert, ctx->rasterizer);
util_primconvert_draw_vbo(ctx->primconvert, info);
return;
}
ctx->needs_flush = true;
/*
* Figure out the buffers/features we need:
*/
if (fd_depth_enabled(ctx)) {
buffers |= FD_BUFFER_DEPTH;
fd_resource(pfb->zsbuf->texture)->dirty = true;
ctx->gmem_reason |= FD_GMEM_DEPTH_ENABLED;
}
if (fd_stencil_enabled(ctx)) {
struct fd_resource *rsc = fd_resource(pfb->zsbuf->texture);
buffers |= FD_BUFFER_STENCIL;
if (rsc->stencil)
rsc->stencil->dirty = true;
else
rsc->dirty = true;
ctx->gmem_reason |= FD_GMEM_STENCIL_ENABLED;
}
if (fd_logicop_enabled(ctx))
ctx->gmem_reason |= FD_GMEM_LOGICOP_ENABLED;
for (i = 0; i < pfb->nr_cbufs; i++) {
struct pipe_resource *surf;
if (!pfb->cbufs[i])
continue;
surf = pfb->cbufs[i]->texture;
fd_resource(surf)->dirty = true;
buffers |= PIPE_CLEAR_COLOR0 << i;
if (surf->nr_samples > 1)
ctx->gmem_reason |= FD_GMEM_MSAA_ENABLED;
if (fd_blend_enabled(ctx, i))
ctx->gmem_reason |= FD_GMEM_BLEND_ENABLED;
}
/* Skip over buffer 0, that is sent along with the command stream */
for (i = 1; i < PIPE_MAX_CONSTANT_BUFFERS; i++) {
resource_reading(ctx, ctx->constbuf[PIPE_SHADER_VERTEX].cb[i].buffer);
resource_reading(ctx, ctx->constbuf[PIPE_SHADER_FRAGMENT].cb[i].buffer);
}
/* Mark VBOs as being read */
for (i = 0; i < ctx->vtx.vertexbuf.count; i++) {
assert(!ctx
->vtx.
vertexbuf.
vb[i
].
user_buffer); resource_reading(ctx, ctx->vtx.vertexbuf.vb[i].buffer);
}
/* Mark index buffer as being read */
resource_reading(ctx, ctx->indexbuf.buffer);
/* Mark textures as being read */
for (i = 0; i < ctx->verttex.num_textures; i++)
if (ctx->verttex.textures[i])
resource_reading(ctx, ctx->verttex.textures[i]->texture);
for (i = 0; i < ctx->fragtex.num_textures; i++)
if (ctx->fragtex.textures[i])
resource_reading(ctx, ctx->fragtex.textures[i]->texture);
ctx->num_draws++;
ctx->stats.draw_calls++;
ctx->stats.prims_emitted +=
u_reduced_prims_for_vertices(info->mode, info->count);
/* any buffers that haven't been cleared yet, we need to restore: */
ctx->restore |= buffers & (FD_BUFFER_ALL & ~ctx->cleared);
/* and any buffers used, need to be resolved: */
ctx->resolve |= buffers;
DBG("%x num_draws=%u (%s/%s)", buffers, ctx->num_draws,
util_format_short_name(pipe_surface_format(pfb->cbufs[0])),
util_format_short_name(pipe_surface_format(pfb->zsbuf)));
fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_DRAW);
ctx->draw_vbo(ctx, info);
/* if an app (or, well, piglit test) does many thousands of draws
* without flush (or anything which implicitly flushes, like
* changing render targets), we can exceed the ringbuffer size.
* Since we don't currently have a sane way to wrapparound, and
* we use the same buffer for both draw and tiling commands, for
* now we need to do this hack and trigger flush if we are running
* low on remaining space for cmds:
*/
if (((ctx->ring->cur - ctx->ring->start) >
(ctx->ring->size/4 - FD_TILING_COMMANDS_DWORDS)) ||
(fd_mesa_debug & FD_DBG_FLUSH))
fd_context_render(pctx);
}
/* TODO figure out how to make better use of existing state mechanism
* for clear (and possibly gmem->mem / mem->gmem) so we can (a) keep
* track of what state really actually changes, and (b) reduce the code
* in the a2xx/a3xx parts.
*/
static void
fd_clear(struct pipe_context *pctx, unsigned buffers,
const union pipe_color_union *color, double depth, unsigned stencil)
{
struct fd_context *ctx = fd_context(pctx);
struct pipe_framebuffer_state *pfb = &ctx->framebuffer;
struct pipe_scissor_state *scissor = fd_context_get_scissor(ctx);
unsigned cleared_buffers;
int i;
/* for bookkeeping about which buffers have been cleared (and thus
* can fully or partially skip mem2gmem) we need to ignore buffers
* that have already had a draw, in case apps do silly things like
* clear after draw (ie. if you only clear the color buffer, but
* something like alpha-test causes side effects from the draw in
* the depth buffer, etc)
*/
cleared_buffers = buffers & (FD_BUFFER_ALL & ~ctx->restore);
/* do we have full-screen scissor? */
if (!memcmp(scissor
, &ctx
->disabled_scissor
, sizeof(*scissor
))) { ctx->cleared |= cleared_buffers;
} else {
ctx->partial_cleared |= cleared_buffers;
if (cleared_buffers & PIPE_CLEAR_COLOR)
ctx->cleared_scissor.color = *scissor;
if (cleared_buffers & PIPE_CLEAR_DEPTH)
ctx->cleared_scissor.depth = *scissor;
if (cleared_buffers & PIPE_CLEAR_STENCIL)
ctx->cleared_scissor.stencil = *scissor;
}
ctx->resolve |= buffers;
ctx->needs_flush = true;
if (buffers & PIPE_CLEAR_COLOR)
for (i = 0; i < pfb->nr_cbufs; i++)
if (buffers & (PIPE_CLEAR_COLOR0 << i))
fd_resource(pfb->cbufs[i]->texture)->dirty = true;
if (buffers & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL)) {
struct fd_resource *rsc = fd_resource(pfb->zsbuf->texture);
if (rsc->stencil && buffers & PIPE_CLEAR_STENCIL)
rsc->stencil->dirty = true;
if (!rsc->stencil || buffers & PIPE_CLEAR_DEPTH)
rsc->dirty = true;
ctx->gmem_reason |= FD_GMEM_CLEARS_DEPTH_STENCIL;
}
DBG("%x depth=%f, stencil=%u (%s/%s)", buffers, depth, stencil,
util_format_short_name(pipe_surface_format(pfb->cbufs[0])),
util_format_short_name(pipe_surface_format(pfb->zsbuf)));
fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_CLEAR);
ctx->clear(ctx, buffers, color, depth, stencil);
ctx->dirty |= FD_DIRTY_ZSA |
FD_DIRTY_VIEWPORT |
FD_DIRTY_RASTERIZER |
FD_DIRTY_SAMPLE_MASK |
FD_DIRTY_PROG |
FD_DIRTY_CONSTBUF |
FD_DIRTY_BLEND;
if (fd_mesa_debug & FD_DBG_DCLEAR)
ctx->dirty = 0xffffffff;
}
static void
fd_clear_render_target(struct pipe_context *pctx, struct pipe_surface *ps,
const union pipe_color_union *color,
unsigned x, unsigned y, unsigned w, unsigned h)
{
DBG("TODO: x=%u, y=%u, w=%u, h=%u", x, y, w, h);
}
static void
fd_clear_depth_stencil(struct pipe_context *pctx, struct pipe_surface *ps,
unsigned buffers, double depth, unsigned stencil,
unsigned x, unsigned y, unsigned w, unsigned h)
{
DBG("TODO: buffers=%u, depth=%f, stencil=%u, x=%u, y=%u, w=%u, h=%u",
buffers, depth, stencil, x, y, w, h);
}
void
fd_draw_init(struct pipe_context *pctx)
{
list_inithead(&fd_context(pctx)->used_resources);
pctx->draw_vbo = fd_draw_vbo;
pctx->clear = fd_clear;
pctx->clear_render_target = fd_clear_render_target;
pctx->clear_depth_stencil = fd_clear_depth_stencil;
}