/**
* Optimal hardware path for blitting pixels.
* Scaling, format conversion, up- and downsampling (resolve) are allowed.
*/
static void
fd_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
{
struct fd_context *ctx = fd_context(pctx);
struct pipe_blit_info info = *blit_info;
if (info.src.resource->nr_samples > 1 &&
info.dst.resource->nr_samples <= 1 &&
!util_format_is_depth_or_stencil(info.src.resource->format) &&
!util_format_is_pure_integer(info.src.resource->format)) {
DBG("color resolve unimplemented");
return;
}
if (info.render_condition_enable && !fd_render_condition_check(pctx))
return;
if (util_try_blit_via_copy_region(pctx, &info)) {
return; /* done */
}
if (info.mask & PIPE_MASK_S) {
DBG("cannot blit stencil, skipping");
info.mask &= ~PIPE_MASK_S;
}
if (!util_blitter_is_blit_supported(ctx->blitter, &info)) {
DBG("blit unsupported %s -> %s",
util_format_short_name(info.src.resource->format),
util_format_short_name(info.dst.resource->format));
return;
}
fd_blitter_pipe_begin(ctx, info.render_condition_enable);
util_blitter_blit(ctx->blitter, &info);
fd_blitter_pipe_end(ctx);
}
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, prims, buffers = 0;
/* if we supported transform feedback, we'd have to disable this: */
if (((scissor->maxx - scissor->minx) *
(scissor->maxy - scissor->miny)) == 0) {
return;
}
/* TODO: push down the region versions into the tiles */
if (!fd_render_condition_check(pctx))
return;
/* emulate unsupported primitives: */
if (!fd_supported_prim(ctx, info->mode)) {
if (ctx->streamout.num_targets > 0)
debug_error("stream-out with emulated prims");
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;
resource_written(ctx, pfb->zsbuf->texture);
ctx->gmem_reason |= FD_GMEM_DEPTH_ENABLED;
}
if (fd_stencil_enabled(ctx)) {
buffers |= FD_BUFFER_STENCIL;
resource_written(ctx, pfb->zsbuf->texture);
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;
resource_written(ctx, surf);
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_read(ctx, ctx->constbuf[PIPE_SHADER_VERTEX].cb[i].buffer);
resource_read(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_read(ctx, ctx->vtx.vertexbuf.vb[i].buffer);
}
/* Mark index buffer as being read */
resource_read(ctx, ctx->indexbuf.buffer);
/* Mark textures as being read */
for (i = 0; i < ctx->verttex.num_textures; i++)
if (ctx->verttex.textures[i])
resource_read(ctx, ctx->verttex.textures[i]->texture);
for (i = 0; i < ctx->fragtex.num_textures; i++)
if (ctx->fragtex.textures[i])
resource_read(ctx, ctx->fragtex.textures[i]->texture);
/* Mark streamout buffers as being written.. */
for (i = 0; i < ctx->streamout.num_targets; i++)
if (ctx->streamout.targets[i])
resource_written(ctx, ctx->streamout.targets[i]->buffer);
ctx->num_draws++;
prims = u_reduced_prims_for_vertices(info->mode, info->count);
ctx->stats.draw_calls++;
/* TODO prims_emitted should be clipped when the stream-out buffer is
* not large enough. See max_tf_vtx().. probably need to move that
* into common code. Although a bit more annoying since a2xx doesn't
* use ir3 so no common way to get at the pipe_stream_output_info
* which is needed for this calculation.
*/
if (ctx->streamout.num_targets > 0)
ctx->stats.prims_emitted += prims;
ctx->stats.prims_generated += prims;
/* 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);
for (i = 0; i < ctx->streamout.num_targets; i++)
ctx->streamout.offsets[i] += info->count;
if (fd_mesa_debug & FD_DBG_DDRAW)
ctx->dirty = 0xffffffff;
/* 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);
}
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;
/* TODO: push down the region versions into the tiles */
if (!fd_render_condition_check(pctx))
return;
/* 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))
resource_written(ctx, pfb->cbufs[i]->texture);
if (buffers & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL)) {
resource_written(ctx, pfb->zsbuf->texture);
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 |
FD_DIRTY_FRAMEBUFFER;
if (fd_mesa_debug & FD_DBG_DCLEAR)
ctx->dirty = 0xffffffff;
}