1 files changed, 379 insertions, 0 deletions

diff --git a/src/gallium/drivers/radeonsi/r600_blit.c b/src/gallium/drivers/radeonsi/r600_blit.c
new file mode 100644
index 00000000000..65158089acb
--- /dev/null
+++ b/src/gallium/drivers/radeonsi/r600_blit.c
@@ -0,0 +1,379 @@
+/*
+ * Copyright 2010 Jerome Glisse <glisse@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
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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.
+ */
+#include "util/u_surface.h"
+#include "util/u_blitter.h"
+#include "util/u_format.h"
+#include "radeonsi_pipe.h"
+
+enum r600_blitter_op /* bitmask */
+{
+	R600_SAVE_TEXTURES      = 1,
+	R600_SAVE_FRAMEBUFFER   = 2,
+	R600_DISABLE_RENDER_COND = 4,
+
+	R600_CLEAR         = 0,
+
+	R600_CLEAR_SURFACE = R600_SAVE_FRAMEBUFFER,
+
+	R600_COPY          = R600_SAVE_FRAMEBUFFER | R600_SAVE_TEXTURES |
+			     R600_DISABLE_RENDER_COND,
+
+	R600_DECOMPRESS    = R600_SAVE_FRAMEBUFFER | R600_DISABLE_RENDER_COND,
+};
+
+static void r600_blitter_begin(struct pipe_context *ctx, enum r600_blitter_op op)
+{
+	struct r600_context *rctx = (struct r600_context *)ctx;
+
+	r600_context_queries_suspend(rctx);
+
+	util_blitter_save_blend(rctx->blitter, rctx->states[R600_PIPE_STATE_BLEND]);
+	util_blitter_save_depth_stencil_alpha(rctx->blitter, rctx->states[R600_PIPE_STATE_DSA]);
+	if (rctx->states[R600_PIPE_STATE_STENCIL_REF]) {
+		util_blitter_save_stencil_ref(rctx->blitter, &rctx->stencil_ref);
+	}
+	util_blitter_save_rasterizer(rctx->blitter, rctx->states[R600_PIPE_STATE_RASTERIZER]);
+	util_blitter_save_fragment_shader(rctx->blitter, rctx->ps_shader);
+	util_blitter_save_vertex_shader(rctx->blitter, rctx->vs_shader);
+	util_blitter_save_vertex_elements(rctx->blitter, rctx->vertex_elements);
+	if (rctx->states[R600_PIPE_STATE_VIEWPORT]) {
+		util_blitter_save_viewport(rctx->blitter, &rctx->viewport);
+	}
+	util_blitter_save_vertex_buffers(rctx->blitter,
+					 rctx->vbuf_mgr->nr_vertex_buffers,
+					 rctx->vbuf_mgr->vertex_buffer);
+	util_blitter_save_so_targets(rctx->blitter, rctx->num_so_targets,
+				     (struct pipe_stream_output_target**)rctx->so_targets);
+
+	if (op & R600_SAVE_FRAMEBUFFER)
+		util_blitter_save_framebuffer(rctx->blitter, &rctx->framebuffer);
+
+	if (op & R600_SAVE_TEXTURES) {
+		util_blitter_save_fragment_sampler_states(
+			rctx->blitter, rctx->ps_samplers.n_samplers,
+			(void**)rctx->ps_samplers.samplers);
+
+		util_blitter_save_fragment_sampler_views(
+			rctx->blitter, rctx->ps_samplers.n_views,
+			(struct pipe_sampler_view**)rctx->ps_samplers.views);
+	}
+
+	if ((op & R600_DISABLE_RENDER_COND) && rctx->current_render_cond) {
+		rctx->saved_render_cond = rctx->current_render_cond;
+		rctx->saved_render_cond_mode = rctx->current_render_cond_mode;
+		rctx->context.render_condition(&rctx->context, NULL, 0);
+	}
+
+}
+
+static void r600_blitter_end(struct pipe_context *ctx)
+{
+	struct r600_context *rctx = (struct r600_context *)ctx;
+	if (rctx->saved_render_cond) {
+		rctx->context.render_condition(&rctx->context,
+					       rctx->saved_render_cond,
+					       rctx->saved_render_cond_mode);
+		rctx->saved_render_cond = NULL;
+	}
+	r600_context_queries_resume(rctx);
+}
+
+static unsigned u_num_layers(struct pipe_resource *r, unsigned level)
+{
+	switch (r->target) {
+	case PIPE_TEXTURE_CUBE:
+		return 6;
+	case PIPE_TEXTURE_3D:
+		return u_minify(r->depth0, level);
+	case PIPE_TEXTURE_1D_ARRAY:
+		return r->array_size;
+	case PIPE_TEXTURE_2D_ARRAY:
+		return r->array_size;
+	default:
+		return 1;
+	}
+}
+
+void r600_blit_uncompress_depth(struct pipe_context *ctx, struct r600_resource_texture *texture)
+{
+	struct r600_context *rctx = (struct r600_context *)ctx;
+	unsigned layer, level;
+	float depth = 1.0f;
+
+	if (!texture->dirty_db)
+		return;
+
+	for (level = 0; level <= texture->resource.b.b.b.last_level; level++) {
+		unsigned num_layers = u_num_layers(&texture->resource.b.b.b, level);
+
+		for (layer = 0; layer < num_layers; layer++) {
+			struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
+
+			surf_tmpl.format = texture->real_format;
+			surf_tmpl.u.tex.level = level;
+			surf_tmpl.u.tex.first_layer = layer;
+			surf_tmpl.u.tex.last_layer = layer;
+			surf_tmpl.usage = PIPE_BIND_DEPTH_STENCIL;
+
+			zsurf = ctx->create_surface(ctx, &texture->resource.b.b.b, &surf_tmpl);
+
+			surf_tmpl.format = texture->flushed_depth_texture->real_format;
+			surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
+			cbsurf = ctx->create_surface(ctx,
+					(struct pipe_resource*)texture->flushed_depth_texture, &surf_tmpl);
+
+			r600_blitter_begin(ctx, R600_DECOMPRESS);
+			util_blitter_custom_depth_stencil(rctx->blitter, zsurf, cbsurf, rctx->custom_dsa_flush, depth);
+			r600_blitter_end(ctx);
+
+			pipe_surface_reference(&zsurf, NULL);
+			pipe_surface_reference(&cbsurf, NULL);
+		}
+	}
+
+	texture->dirty_db = FALSE;
+}
+
+void r600_flush_depth_textures(struct r600_context *rctx)
+{
+	unsigned int i;
+
+	/* FIXME: This handles fragment shader textures only. */
+
+	for (i = 0; i < rctx->ps_samplers.n_views; ++i) {
+		struct si_pipe_sampler_view *view;
+		struct r600_resource_texture *tex;
+
+		view = rctx->ps_samplers.views[i];
+		if (!view) continue;
+
+		tex = (struct r600_resource_texture *)view->base.texture;
+		if (!tex->depth)
+			continue;
+
+		if (tex->is_flushing_texture)
+			continue;
+
+		r600_blit_uncompress_depth(&rctx->context, tex);
+	}
+
+	/* also check CB here */
+	for (i = 0; i < rctx->framebuffer.nr_cbufs; i++) {
+		struct r600_resource_texture *tex;
+		tex = (struct r600_resource_texture *)rctx->framebuffer.cbufs[i]->texture;
+
+		if (!tex->depth)
+			continue;
+
+		if (tex->is_flushing_texture)
+			continue;
+
+		r600_blit_uncompress_depth(&rctx->context, tex);
+	}
+}
+
+static void r600_clear(struct pipe_context *ctx, unsigned buffers,
+		       const union pipe_color_union *color,
+		       double depth, unsigned stencil)
+{
+	struct r600_context *rctx = (struct r600_context *)ctx;
+	struct pipe_framebuffer_state *fb = &rctx->framebuffer;
+	
+	r600_blitter_begin(ctx, R600_CLEAR);
+	util_blitter_clear(rctx->blitter, fb->width, fb->height,
+			   fb->nr_cbufs, buffers, fb->nr_cbufs ? fb->cbufs[0]->format : PIPE_FORMAT_NONE,
+			   color, depth, stencil);
+	r600_blitter_end(ctx);
+}
+
+static void r600_clear_render_target(struct pipe_context *ctx,
+				     struct pipe_surface *dst,
+				     const union pipe_color_union *color,
+				     unsigned dstx, unsigned dsty,
+				     unsigned width, unsigned height)
+{
+	struct r600_context *rctx = (struct r600_context *)ctx;
+
+	r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
+	util_blitter_clear_render_target(rctx->blitter, dst, color,
+					 dstx, dsty, width, height);
+	r600_blitter_end(ctx);
+}
+
+static void r600_clear_depth_stencil(struct pipe_context *ctx,
+				     struct pipe_surface *dst,
+				     unsigned clear_flags,
+				     double depth,
+				     unsigned stencil,
+				     unsigned dstx, unsigned dsty,
+				     unsigned width, unsigned height)
+{
+	struct r600_context *rctx = (struct r600_context *)ctx;
+
+	r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
+	util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
+					 dstx, dsty, width, height);
+	r600_blitter_end(ctx);
+}
+
+
+
+/* Copy a block of pixels from one surface to another using HW. */
+static void r600_hw_copy_region(struct pipe_context *ctx,
+				struct pipe_resource *dst,
+				unsigned dst_level,
+				unsigned dstx, unsigned dsty, unsigned dstz,
+				struct pipe_resource *src,
+				unsigned src_level,
+				const struct pipe_box *src_box)
+{
+	struct r600_context *rctx = (struct r600_context *)ctx;
+
+	r600_blitter_begin(ctx, R600_COPY);
+	util_blitter_copy_texture(rctx->blitter, dst, dst_level, dstx, dsty, dstz,
+				  src, src_level, src_box, TRUE);
+	r600_blitter_end(ctx);
+}
+
+struct texture_orig_info {
+	unsigned format;
+	unsigned width0;
+	unsigned height0;
+};
+
+static void r600_compressed_to_blittable(struct pipe_resource *tex,
+				   unsigned level,
+				   struct texture_orig_info *orig)
+{
+	struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
+	unsigned pixsize = util_format_get_blocksize(rtex->real_format);
+	int new_format;
+	int new_height, new_width;
+
+	orig->format = tex->format;
+	orig->width0 = tex->width0;
+	orig->height0 = tex->height0;
+
+	if (pixsize == 8)
+		new_format = PIPE_FORMAT_R16G16B16A16_UINT; /* 64-bit block */
+	else
+		new_format = PIPE_FORMAT_R32G32B32A32_UINT; /* 128-bit block */
+
+	new_width = util_format_get_nblocksx(tex->format, orig->width0);
+	new_height = util_format_get_nblocksy(tex->format, orig->height0);
+
+	tex->width0 = new_width;
+	tex->height0 = new_height;
+	tex->format = new_format;
+}
+
+static void r600_reset_blittable_to_compressed(struct pipe_resource *tex,
+					       struct texture_orig_info *orig)
+{
+	tex->format = orig->format;
+	tex->width0 = orig->width0;
+	tex->height0 = orig->height0;
+}
+
+static void r600_resource_copy_region(struct pipe_context *ctx,
+				      struct pipe_resource *dst,
+				      unsigned dst_level,
+				      unsigned dstx, unsigned dsty, unsigned dstz,
+				      struct pipe_resource *src,
+				      unsigned src_level,
+				      const struct pipe_box *src_box)
+{
+	struct r600_resource_texture *rsrc = (struct r600_resource_texture*)src;
+	struct texture_orig_info orig_info[2];
+	struct pipe_box sbox;
+	const struct pipe_box *psbox;
+	boolean restore_orig[2];
+
+	memset(orig_info, 0, sizeof(orig_info));
+
+	/* Fallback for buffers. */
+	if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
+		util_resource_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
+                                          src, src_level, src_box);
+		return;
+	}
+
+	if (rsrc->depth && !rsrc->is_flushing_texture)
+		r600_texture_depth_flush(ctx, src, FALSE);
+
+	restore_orig[0] = restore_orig[1] = FALSE;
+
+	if (util_format_is_compressed(src->format)) {
+		r600_compressed_to_blittable(src, src_level, &orig_info[0]);
+		restore_orig[0] = TRUE;
+		sbox.x = util_format_get_nblocksx(orig_info[0].format, src_box->x);
+		sbox.y = util_format_get_nblocksy(orig_info[0].format, src_box->y);
+		sbox.z = src_box->z;
+		sbox.width = util_format_get_nblocksx(orig_info[0].format, src_box->width);
+		sbox.height = util_format_get_nblocksy(orig_info[0].format, src_box->height);
+		sbox.depth = src_box->depth;
+		psbox=&sbox;
+	} else
+		psbox=src_box;
+
+	if (util_format_is_compressed(dst->format)) {
+		r600_compressed_to_blittable(dst, dst_level, &orig_info[1]);
+		restore_orig[1] = TRUE;
+		/* translate the dst box as well */
+		dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
+		dsty = util_format_get_nblocksy(orig_info[1].format, dsty);
+	}
+
+	r600_hw_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
+			    src, src_level, psbox);
+
+	if (restore_orig[0])
+		r600_reset_blittable_to_compressed(src, &orig_info[0]);
+
+	if (restore_orig[1])
+		r600_reset_blittable_to_compressed(dst, &orig_info[1]);
+}
+
+void r600_init_blit_functions(struct r600_context *rctx)
+{
+	rctx->context.clear = r600_clear;
+	rctx->context.clear_render_target = r600_clear_render_target;
+	rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
+	rctx->context.resource_copy_region = r600_resource_copy_region;
+}
+
+void r600_blit_push_depth(struct pipe_context *ctx, struct r600_resource_texture *texture)
+{
+	struct pipe_box sbox;
+
+	sbox.x = sbox.y = sbox.z = 0;
+	sbox.width = texture->resource.b.b.b.width0;
+	sbox.height = texture->resource.b.b.b.height0;
+	/* XXX that might be wrong */
+	sbox.depth = 1;
+
+	r600_hw_copy_region(ctx, (struct pipe_resource *)texture, 0,
+			    0, 0, 0,
+			    (struct pipe_resource *)texture->flushed_depth_texture, 0,
+			    &sbox);
+}