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/* -*- 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_util.h"
static enum pc_di_primtype
mode2primtype(unsigned mode)
{
switch (mode) {
case PIPE_PRIM_POINTS: return DI_PT_POINTLIST;
case PIPE_PRIM_LINES: return DI_PT_LINELIST;
case PIPE_PRIM_LINE_STRIP: return DI_PT_LINESTRIP;
case PIPE_PRIM_TRIANGLES: return DI_PT_TRILIST;
case PIPE_PRIM_TRIANGLE_STRIP: return DI_PT_TRISTRIP;
case PIPE_PRIM_TRIANGLE_FAN: return DI_PT_TRIFAN;
case PIPE_PRIM_QUADS: return DI_PT_QUADLIST;
case PIPE_PRIM_QUAD_STRIP: return DI_PT_QUADSTRIP;
case PIPE_PRIM_POLYGON: return DI_PT_POLYGON;
}
DBG("unsupported mode: (%s) %d", u_prim_name(mode), mode);
assert(0);
return DI_PT_NONE;
}
static enum pc_di_index_size
size2indextype(unsigned index_size)
{
switch (index_size) {
case 1: return INDEX_SIZE_8_BIT;
case 2: return INDEX_SIZE_16_BIT;
case 4: return INDEX_SIZE_32_BIT;
}
DBG("unsupported index size: %d", index_size);
assert(0);
return INDEX_SIZE_IGN;
}
/* this is same for a2xx/a3xx, so split into helper: */
void
fd_draw_emit(struct fd_context *ctx, const struct pipe_draw_info *info)
{
struct fd_ringbuffer *ring = ctx->ring;
struct pipe_index_buffer *idx = &ctx->indexbuf;
struct fd_bo *idx_bo = NULL;
enum pc_di_index_size idx_type = INDEX_SIZE_IGN;
enum pc_di_src_sel src_sel;
uint32_t idx_size, idx_offset;
if (info->indexed) {
assert(!idx->user_buffer);
idx_bo = fd_resource(idx->buffer)->bo;
idx_type = size2indextype(idx->index_size);
idx_size = idx->index_size * info->count;
idx_offset = idx->offset;
src_sel = DI_SRC_SEL_DMA;
} else {
idx_bo = NULL;
idx_type = INDEX_SIZE_IGN;
idx_size = 0;
idx_offset = 0;
src_sel = DI_SRC_SEL_AUTO_INDEX;
}
OUT_PKT3(ring, CP_DRAW_INDX, info->indexed ? 5 : 3);
OUT_RING(ring, 0x00000000); /* viz query info. */
OUT_RING(ring, DRAW(mode2primtype(info->mode),
src_sel, idx_type, IGNORE_VISIBILITY));
OUT_RING(ring, info->count); /* NumIndices */
if (info->indexed) {
OUT_RELOC(ring, idx_bo, idx_offset, 0);
OUT_RING (ring, idx_size);
}
}
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;
}
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)) {
buffers |= FD_BUFFER_STENCIL;
fd_resource(pfb->zsbuf->texture)->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 = pfb->cbufs[i]->texture;
fd_resource(surf)->dirty = true;
buffers |= FD_BUFFER_COLOR;
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;
}
ctx->num_draws++;
/* any buffers that haven't been cleared, we need to restore: */
ctx->restore |= buffers & (FD_BUFFER_ALL & ~ctx->cleared);
/* and any buffers used, need to be resolved: */
ctx->resolve |= buffers;
ctx->draw(ctx, info);
}
/* 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;
ctx->cleared |= buffers;
ctx->resolve |= buffers;
ctx->needs_flush = true;
if (buffers & PIPE_CLEAR_COLOR)
fd_resource(pfb->cbufs[0]->texture)->dirty = true;
if (buffers & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL)) {
fd_resource(pfb->zsbuf->texture)->dirty = true;
ctx->gmem_reason |= FD_GMEM_CLEARS_DEPTH_STENCIL;
}
DBG("%x depth=%f, stencil=%u (%s/%s)", buffers, depth, stencil,
util_format_name(pfb->cbufs[0]->format),
pfb->zsbuf ? util_format_name(pfb->zsbuf->format) : "none");
ctx->clear(ctx, buffers, color, depth, stencil);
ctx->dirty |= FD_DIRTY_ZSA |
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)
{
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;
}
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