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authorEric Anholt <eric@anholt.net>2015-04-06 15:12:58 -0700
committerEric Anholt <eric@anholt.net>2015-04-13 23:20:46 -0700
commit1be329e64cd035e3ee088cff3a50d39e1ad66868 (patch)
tree5dc50073b69a5aa27ab9e083fec86feac6827392 /src/gallium/drivers/vc4/vc4_blit.c
parent76d56752ccff5bca3a0808705d5da76f186afb33 (diff)
vc4: Add a blitter path using just the render thread.
This accelerates the path for generating the shadow tiled texture when asked to sample from a raster texture (typical in glamor).
Diffstat (limited to 'src/gallium/drivers/vc4/vc4_blit.c')
-rw-r--r--src/gallium/drivers/vc4/vc4_blit.c127
1 files changed, 127 insertions, 0 deletions
diff --git a/src/gallium/drivers/vc4/vc4_blit.c b/src/gallium/drivers/vc4/vc4_blit.c
index 5c98fb612e0..4f87189fd2e 100644
--- a/src/gallium/drivers/vc4/vc4_blit.c
+++ b/src/gallium/drivers/vc4/vc4_blit.c
@@ -26,6 +26,130 @@
#include "util/u_blitter.h"
#include "vc4_context.h"
+static void
+vc4_tile_blit_color_rcl(struct vc4_context *vc4,
+ struct vc4_surface *dst_surf,
+ struct vc4_surface *src_surf)
+{
+ struct vc4_resource *src = vc4_resource(src_surf->base.texture);
+ struct vc4_resource *dst = vc4_resource(dst_surf->base.texture);
+
+ uint32_t min_x_tile = 0;
+ uint32_t min_y_tile = 0;
+ uint32_t max_x_tile = (dst_surf->base.width - 1) / 64;
+ uint32_t max_y_tile = (dst_surf->base.height - 1) / 64;
+ uint32_t xtiles = max_x_tile - min_x_tile + 1;
+ uint32_t ytiles = max_y_tile - min_y_tile + 1;
+ uint32_t reloc_size = 9;
+ uint32_t config_size = 11 + reloc_size;
+ uint32_t loadstore_size = 7 + reloc_size;
+ uint32_t tilecoords_size = 3;
+ cl_ensure_space(&vc4->rcl,
+ config_size +
+ xtiles * ytiles * (loadstore_size * 2 +
+ tilecoords_size * 1));
+ cl_ensure_space(&vc4->bo_handles, 2 * sizeof(uint32_t));
+ cl_ensure_space(&vc4->bo_pointers, 2 * sizeof(struct vc4_bo *));
+
+ cl_start_reloc(&vc4->rcl, 1);
+ cl_u8(&vc4->rcl, VC4_PACKET_TILE_RENDERING_MODE_CONFIG);
+ cl_reloc(vc4, &vc4->rcl, dst->bo, dst_surf->offset);
+ cl_u16(&vc4->rcl, dst_surf->base.width);
+ cl_u16(&vc4->rcl, dst_surf->base.height);
+ cl_u16(&vc4->rcl, ((dst_surf->tiling <<
+ VC4_RENDER_CONFIG_MEMORY_FORMAT_SHIFT) |
+ (vc4_rt_format_is_565(dst_surf->base.format) ?
+ VC4_RENDER_CONFIG_FORMAT_BGR565 :
+ VC4_RENDER_CONFIG_FORMAT_RGBA8888)));
+
+ uint32_t src_hindex = vc4_gem_hindex(vc4, src->bo);
+
+ for (int y = min_y_tile; y <= max_y_tile; y++) {
+ for (int x = min_x_tile; x <= max_x_tile; x++) {
+ bool end_of_frame = (x == max_x_tile &&
+ y == max_y_tile);
+
+ cl_start_reloc(&vc4->rcl, 1);
+ cl_u8(&vc4->rcl, VC4_PACKET_LOAD_TILE_BUFFER_GENERAL);
+ cl_u8(&vc4->rcl,
+ VC4_LOADSTORE_TILE_BUFFER_COLOR |
+ (src_surf->tiling <<
+ VC4_LOADSTORE_TILE_BUFFER_FORMAT_SHIFT));
+ cl_u8(&vc4->rcl,
+ vc4_rt_format_is_565(src_surf->base.format) ?
+ VC4_LOADSTORE_TILE_BUFFER_BGR565 :
+ VC4_LOADSTORE_TILE_BUFFER_RGBA8888);
+ cl_reloc_hindex(&vc4->rcl, src_hindex,
+ src_surf->offset);
+
+ cl_u8(&vc4->rcl, VC4_PACKET_TILE_COORDINATES);
+ cl_u8(&vc4->rcl, x);
+ cl_u8(&vc4->rcl, y);
+
+ if (end_of_frame) {
+ cl_u8(&vc4->rcl,
+ VC4_PACKET_STORE_MS_TILE_BUFFER_AND_EOF);
+ } else {
+ cl_u8(&vc4->rcl,
+ VC4_PACKET_STORE_MS_TILE_BUFFER);
+ }
+ }
+ }
+
+ vc4->draw_min_x = 0;
+ vc4->draw_min_y = 0;
+ vc4->draw_max_x = dst_surf->base.width;
+ vc4->draw_max_y = dst_surf->base.height;
+
+ dst->writes++;
+ vc4->needs_flush = true;
+}
+
+static struct vc4_surface *
+vc4_get_blit_surface(struct pipe_context *pctx,
+ struct pipe_resource *prsc, unsigned level)
+{
+ struct pipe_surface tmpl;
+
+ memset(&tmpl, 0, sizeof(tmpl));
+ tmpl.format = prsc->format;
+ tmpl.u.tex.level = level;
+ tmpl.u.tex.first_layer = 0;
+ tmpl.u.tex.last_layer = 0;
+
+ return vc4_surface(pctx->create_surface(pctx, prsc, &tmpl));
+}
+
+static bool
+vc4_tile_blit(struct pipe_context *pctx, const struct pipe_blit_info *info)
+{
+ struct vc4_context *vc4 = vc4_context(pctx);
+
+ if ((info->mask & PIPE_MASK_RGBA) == 0)
+ return false;
+
+ if (info->dst.box.x != 0 || info->dst.box.y != 0 ||
+ info->src.box.x != 0 || info->src.box.y != 0 ||
+ info->dst.box.width != info->src.box.width ||
+ info->dst.box.height != info->src.box.height) {
+ return false;
+ }
+
+ struct vc4_surface *dst_surf =
+ vc4_get_blit_surface(pctx, info->dst.resource, info->dst.level);
+ struct vc4_surface *src_surf =
+ vc4_get_blit_surface(pctx, info->src.resource, info->src.level);
+
+ vc4_flush(pctx);
+ vc4_tile_blit_color_rcl(vc4, dst_surf, src_surf);
+ vc4_job_submit(vc4);
+
+ pctx->surface_destroy(pctx, &dst_surf->base);
+ pctx->surface_destroy(pctx, &src_surf->base);
+
+ return true;
+}
+
static bool
vc4_render_blit(struct pipe_context *ctx, struct pipe_blit_info *info)
{
@@ -77,6 +201,9 @@ vc4_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
return;
}
+ if (vc4_tile_blit(pctx, blit_info))
+ return;
+
if (util_try_blit_via_copy_region(pctx, &info)) {
return; /* done */
}