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      1 /*
      2  * Copyright 2010 Jerome Glisse <glisse (at) freedesktop.org>
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * on the rights to use, copy, modify, merge, publish, distribute, sub
      8  * license, and/or sell copies of the Software, and to permit persons to whom
      9  * the Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
     19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
     20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
     21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
     22  */
     23 #include "util/u_surface.h"
     24 #include "util/u_blitter.h"
     25 #include "util/u_format.h"
     26 #include "radeonsi_pipe.h"
     27 #include "si_state.h"
     28 
     29 enum r600_blitter_op /* bitmask */
     30 {
     31 	R600_SAVE_TEXTURES      = 1,
     32 	R600_SAVE_FRAMEBUFFER   = 2,
     33 	R600_DISABLE_RENDER_COND = 4,
     34 
     35 	R600_CLEAR         = 0,
     36 
     37 	R600_CLEAR_SURFACE = R600_SAVE_FRAMEBUFFER,
     38 
     39 	R600_COPY          = R600_SAVE_FRAMEBUFFER | R600_SAVE_TEXTURES |
     40 			     R600_DISABLE_RENDER_COND,
     41 
     42 	R600_DECOMPRESS    = R600_SAVE_FRAMEBUFFER | R600_DISABLE_RENDER_COND,
     43 };
     44 
     45 static void r600_blitter_begin(struct pipe_context *ctx, enum r600_blitter_op op)
     46 {
     47 	struct r600_context *rctx = (struct r600_context *)ctx;
     48 
     49 	r600_context_queries_suspend(rctx);
     50 
     51 	util_blitter_save_blend(rctx->blitter, rctx->queued.named.blend);
     52 	util_blitter_save_depth_stencil_alpha(rctx->blitter, rctx->queued.named.dsa);
     53 	util_blitter_save_stencil_ref(rctx->blitter, &rctx->stencil_ref);
     54 	util_blitter_save_rasterizer(rctx->blitter, rctx->queued.named.rasterizer);
     55 	util_blitter_save_fragment_shader(rctx->blitter, rctx->ps_shader);
     56 	util_blitter_save_vertex_shader(rctx->blitter, rctx->vs_shader);
     57 	util_blitter_save_vertex_elements(rctx->blitter, rctx->vertex_elements);
     58 	if (rctx->queued.named.viewport) {
     59 		util_blitter_save_viewport(rctx->blitter, &rctx->queued.named.viewport->viewport);
     60 	}
     61 	util_blitter_save_vertex_buffers(rctx->blitter,
     62 					 rctx->nr_vertex_buffers,
     63 					 rctx->vertex_buffer);
     64 	util_blitter_save_so_targets(rctx->blitter, rctx->num_so_targets,
     65 				     (struct pipe_stream_output_target**)rctx->so_targets);
     66 
     67 	if (op & R600_SAVE_FRAMEBUFFER)
     68 		util_blitter_save_framebuffer(rctx->blitter, &rctx->framebuffer);
     69 
     70 	if (op & R600_SAVE_TEXTURES) {
     71 		util_blitter_save_fragment_sampler_states(
     72 			rctx->blitter, rctx->ps_samplers.n_samplers,
     73 			(void**)rctx->ps_samplers.samplers);
     74 
     75 		util_blitter_save_fragment_sampler_views(
     76 			rctx->blitter, rctx->ps_samplers.n_views,
     77 			(struct pipe_sampler_view**)rctx->ps_samplers.views);
     78 	}
     79 
     80 	if ((op & R600_DISABLE_RENDER_COND) && rctx->current_render_cond) {
     81 		rctx->saved_render_cond = rctx->current_render_cond;
     82 		rctx->saved_render_cond_mode = rctx->current_render_cond_mode;
     83 		rctx->context.render_condition(&rctx->context, NULL, 0);
     84 	}
     85 
     86 }
     87 
     88 static void r600_blitter_end(struct pipe_context *ctx)
     89 {
     90 	struct r600_context *rctx = (struct r600_context *)ctx;
     91 	if (rctx->saved_render_cond) {
     92 		rctx->context.render_condition(&rctx->context,
     93 					       rctx->saved_render_cond,
     94 					       rctx->saved_render_cond_mode);
     95 		rctx->saved_render_cond = NULL;
     96 	}
     97 	r600_context_queries_resume(rctx);
     98 }
     99 
    100 static unsigned u_num_layers(struct pipe_resource *r, unsigned level)
    101 {
    102 	switch (r->target) {
    103 	case PIPE_TEXTURE_CUBE:
    104 		return 6;
    105 	case PIPE_TEXTURE_3D:
    106 		return u_minify(r->depth0, level);
    107 	case PIPE_TEXTURE_1D_ARRAY:
    108 		return r->array_size;
    109 	case PIPE_TEXTURE_2D_ARRAY:
    110 		return r->array_size;
    111 	default:
    112 		return 1;
    113 	}
    114 }
    115 
    116 void si_blit_uncompress_depth(struct pipe_context *ctx, struct r600_resource_texture *texture)
    117 {
    118 	struct r600_context *rctx = (struct r600_context *)ctx;
    119 	unsigned layer, level;
    120 	float depth = 1.0f;
    121 
    122 	if (!texture->dirty_db)
    123 		return;
    124 
    125 	for (level = 0; level <= texture->resource.b.b.last_level; level++) {
    126 		unsigned num_layers = u_num_layers(&texture->resource.b.b, level);
    127 
    128 		for (layer = 0; layer < num_layers; layer++) {
    129 			struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
    130 
    131 			surf_tmpl.format = texture->real_format;
    132 			surf_tmpl.u.tex.level = level;
    133 			surf_tmpl.u.tex.first_layer = layer;
    134 			surf_tmpl.u.tex.last_layer = layer;
    135 			surf_tmpl.usage = PIPE_BIND_DEPTH_STENCIL;
    136 
    137 			zsurf = ctx->create_surface(ctx, &texture->resource.b.b, &surf_tmpl);
    138 
    139 			surf_tmpl.format = texture->flushed_depth_texture->real_format;
    140 			surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
    141 			cbsurf = ctx->create_surface(ctx,
    142 					(struct pipe_resource*)texture->flushed_depth_texture, &surf_tmpl);
    143 
    144 			r600_blitter_begin(ctx, R600_DECOMPRESS);
    145 			util_blitter_custom_depth_stencil(rctx->blitter, zsurf, cbsurf, ~0, rctx->custom_dsa_flush, depth);
    146 			r600_blitter_end(ctx);
    147 
    148 			pipe_surface_reference(&zsurf, NULL);
    149 			pipe_surface_reference(&cbsurf, NULL);
    150 		}
    151 	}
    152 
    153 	texture->dirty_db = FALSE;
    154 }
    155 
    156 void si_flush_depth_textures(struct r600_context *rctx)
    157 {
    158 	unsigned int i;
    159 
    160 	/* FIXME: This handles fragment shader textures only. */
    161 
    162 	for (i = 0; i < rctx->ps_samplers.n_views; ++i) {
    163 		struct si_pipe_sampler_view *view;
    164 		struct r600_resource_texture *tex;
    165 
    166 		view = rctx->ps_samplers.views[i];
    167 		if (!view) continue;
    168 
    169 		tex = (struct r600_resource_texture *)view->base.texture;
    170 		if (!tex->depth)
    171 			continue;
    172 
    173 		if (tex->is_flushing_texture)
    174 			continue;
    175 
    176 		si_blit_uncompress_depth(&rctx->context, tex);
    177 	}
    178 
    179 	/* also check CB here */
    180 	for (i = 0; i < rctx->framebuffer.nr_cbufs; i++) {
    181 		struct r600_resource_texture *tex;
    182 		tex = (struct r600_resource_texture *)rctx->framebuffer.cbufs[i]->texture;
    183 
    184 		if (!tex->depth)
    185 			continue;
    186 
    187 		if (tex->is_flushing_texture)
    188 			continue;
    189 
    190 		si_blit_uncompress_depth(&rctx->context, tex);
    191 	}
    192 }
    193 
    194 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
    195 		       const union pipe_color_union *color,
    196 		       double depth, unsigned stencil)
    197 {
    198 	struct r600_context *rctx = (struct r600_context *)ctx;
    199 	struct pipe_framebuffer_state *fb = &rctx->framebuffer;
    200 
    201 	r600_blitter_begin(ctx, R600_CLEAR);
    202 	util_blitter_clear(rctx->blitter, fb->width, fb->height,
    203 			   fb->nr_cbufs, buffers, fb->nr_cbufs ? fb->cbufs[0]->format : PIPE_FORMAT_NONE,
    204 			   color, depth, stencil);
    205 	r600_blitter_end(ctx);
    206 }
    207 
    208 static void r600_clear_render_target(struct pipe_context *ctx,
    209 				     struct pipe_surface *dst,
    210 				     const union pipe_color_union *color,
    211 				     unsigned dstx, unsigned dsty,
    212 				     unsigned width, unsigned height)
    213 {
    214 	struct r600_context *rctx = (struct r600_context *)ctx;
    215 
    216 	r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
    217 	util_blitter_clear_render_target(rctx->blitter, dst, color,
    218 					 dstx, dsty, width, height);
    219 	r600_blitter_end(ctx);
    220 }
    221 
    222 static void r600_clear_depth_stencil(struct pipe_context *ctx,
    223 				     struct pipe_surface *dst,
    224 				     unsigned clear_flags,
    225 				     double depth,
    226 				     unsigned stencil,
    227 				     unsigned dstx, unsigned dsty,
    228 				     unsigned width, unsigned height)
    229 {
    230 	struct r600_context *rctx = (struct r600_context *)ctx;
    231 
    232 	r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
    233 	util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
    234 					 dstx, dsty, width, height);
    235 	r600_blitter_end(ctx);
    236 }
    237 
    238 
    239 
    240 /* Copy a block of pixels from one surface to another using HW. */
    241 static void r600_hw_copy_region(struct pipe_context *ctx,
    242 				struct pipe_resource *dst,
    243 				unsigned dst_level,
    244 				unsigned dstx, unsigned dsty, unsigned dstz,
    245 				struct pipe_resource *src,
    246 				unsigned src_level,
    247 				const struct pipe_box *src_box)
    248 {
    249 	struct r600_context *rctx = (struct r600_context *)ctx;
    250 
    251 	r600_blitter_begin(ctx, R600_COPY);
    252 	util_blitter_copy_texture(rctx->blitter, dst, dst_level, ~0, dstx, dsty, dstz,
    253 				  src, src_level, 0, src_box);
    254 	r600_blitter_end(ctx);
    255 }
    256 
    257 struct texture_orig_info {
    258 	unsigned format;
    259 	unsigned width0;
    260 	unsigned height0;
    261 	unsigned npix_x;
    262 	unsigned npix_y;
    263 	unsigned npix0_x;
    264 	unsigned npix0_y;
    265 };
    266 
    267 static void r600_compressed_to_blittable(struct pipe_resource *tex,
    268 				   unsigned level,
    269 				   struct texture_orig_info *orig)
    270 {
    271 	struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
    272 	struct r600_screen *rscreen = (struct r600_screen *)tex->screen;
    273 	unsigned pixsize = util_format_get_blocksize(rtex->real_format);
    274 	int new_format;
    275 	int new_height, new_width;
    276 
    277 	orig->format = tex->format;
    278 	orig->width0 = tex->width0;
    279 	orig->height0 = tex->height0;
    280 	orig->npix0_x = rtex->surface.level[0].npix_x;
    281 	orig->npix0_y = rtex->surface.level[0].npix_y;
    282 	orig->npix_x = rtex->surface.level[level].npix_x;
    283 	orig->npix_y = rtex->surface.level[level].npix_y;
    284 
    285 	if (pixsize == 8)
    286 		new_format = PIPE_FORMAT_R16G16B16A16_UINT; /* 64-bit block */
    287 	else
    288 		new_format = PIPE_FORMAT_R32G32B32A32_UINT; /* 128-bit block */
    289 
    290 	new_width = util_format_get_nblocksx(tex->format, orig->width0);
    291 	new_height = util_format_get_nblocksy(tex->format, orig->height0);
    292 
    293 	tex->width0 = new_width;
    294 	tex->height0 = new_height;
    295 	tex->format = new_format;
    296 	rtex->surface.level[0].npix_x = util_format_get_nblocksx(orig->format, orig->npix0_x);
    297 	rtex->surface.level[0].npix_y = util_format_get_nblocksy(orig->format, orig->npix0_y);
    298 	rtex->surface.level[level].npix_x = util_format_get_nblocksx(orig->format, orig->npix_x);
    299 	rtex->surface.level[level].npix_y = util_format_get_nblocksy(orig->format, orig->npix_y);
    300 }
    301 
    302 static void r600_reset_blittable_to_compressed(struct pipe_resource *tex,
    303 					       unsigned level,
    304 					       struct texture_orig_info *orig)
    305 {
    306 	struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
    307 	struct r600_screen *rscreen = (struct r600_screen *)tex->screen;
    308 
    309 	tex->format = orig->format;
    310 	tex->width0 = orig->width0;
    311 	tex->height0 = orig->height0;
    312 	rtex->surface.level[0].npix_x = orig->npix0_x;
    313 	rtex->surface.level[0].npix_y = orig->npix0_y;
    314 	rtex->surface.level[level].npix_x = orig->npix_x;
    315 	rtex->surface.level[level].npix_y = orig->npix_y;
    316 }
    317 
    318 static void r600_resource_copy_region(struct pipe_context *ctx,
    319 				      struct pipe_resource *dst,
    320 				      unsigned dst_level,
    321 				      unsigned dstx, unsigned dsty, unsigned dstz,
    322 				      struct pipe_resource *src,
    323 				      unsigned src_level,
    324 				      const struct pipe_box *src_box)
    325 {
    326 	struct r600_resource_texture *rsrc = (struct r600_resource_texture*)src;
    327 	struct texture_orig_info orig_info[2];
    328 	struct pipe_box sbox;
    329 	const struct pipe_box *psbox;
    330 	boolean restore_orig[2];
    331 
    332 	memset(orig_info, 0, sizeof(orig_info));
    333 
    334 	/* Fallback for buffers. */
    335 	if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
    336 		util_resource_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
    337                                           src, src_level, src_box);
    338 		return;
    339 	}
    340 
    341 	if (rsrc->depth && !rsrc->is_flushing_texture)
    342 		r600_texture_depth_flush(ctx, src, FALSE);
    343 
    344 	restore_orig[0] = restore_orig[1] = FALSE;
    345 
    346 	if (util_format_is_compressed(src->format)) {
    347 		r600_compressed_to_blittable(src, src_level, &orig_info[0]);
    348 		restore_orig[0] = TRUE;
    349 		sbox.x = util_format_get_nblocksx(orig_info[0].format, src_box->x);
    350 		sbox.y = util_format_get_nblocksy(orig_info[0].format, src_box->y);
    351 		sbox.z = src_box->z;
    352 		sbox.width = util_format_get_nblocksx(orig_info[0].format, src_box->width);
    353 		sbox.height = util_format_get_nblocksy(orig_info[0].format, src_box->height);
    354 		sbox.depth = src_box->depth;
    355 		psbox=&sbox;
    356 	} else
    357 		psbox=src_box;
    358 
    359 	if (util_format_is_compressed(dst->format)) {
    360 		r600_compressed_to_blittable(dst, dst_level, &orig_info[1]);
    361 		restore_orig[1] = TRUE;
    362 		/* translate the dst box as well */
    363 		dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
    364 		dsty = util_format_get_nblocksy(orig_info[1].format, dsty);
    365 	}
    366 
    367 	r600_hw_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
    368 			    src, src_level, psbox);
    369 
    370 	if (restore_orig[0])
    371 		r600_reset_blittable_to_compressed(src, src_level, &orig_info[0]);
    372 
    373 	if (restore_orig[1])
    374 		r600_reset_blittable_to_compressed(dst, dst_level, &orig_info[1]);
    375 }
    376 
    377 void si_init_blit_functions(struct r600_context *rctx)
    378 {
    379 	rctx->context.clear = r600_clear;
    380 	rctx->context.clear_render_target = r600_clear_render_target;
    381 	rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
    382 	rctx->context.resource_copy_region = r600_resource_copy_region;
    383 }
    384 
    385 void r600_blit_push_depth(struct pipe_context *ctx, struct r600_resource_texture *texture)
    386 {
    387 	struct pipe_box sbox;
    388 
    389 	sbox.x = sbox.y = sbox.z = 0;
    390 	sbox.width = texture->resource.b.b.width0;
    391 	sbox.height = texture->resource.b.b.height0;
    392 	/* XXX that might be wrong */
    393 	sbox.depth = 1;
    394 
    395 	r600_hw_copy_region(ctx, (struct pipe_resource *)texture, 0,
    396 			    0, 0, 0,
    397 			    (struct pipe_resource *)texture->flushed_depth_texture, 0,
    398 			    &sbox);
    399 }
    400