1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */ 2 3 /* 4 * Copyright (C) 2012 Rob Clark <robclark (at) freedesktop.org> 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the next 14 * paragraph) shall be included in all copies or substantial portions of the 15 * Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 23 * SOFTWARE. 24 * 25 * Authors: 26 * Rob Clark <robclark (at) freedesktop.org> 27 */ 28 29 #include "pipe/p_state.h" 30 #include "util/u_string.h" 31 #include "util/u_memory.h" 32 #include "util/u_prim.h" 33 #include "util/u_format.h" 34 35 #include "freedreno_draw.h" 36 #include "freedreno_context.h" 37 #include "freedreno_state.h" 38 #include "freedreno_resource.h" 39 #include "freedreno_query_hw.h" 40 #include "freedreno_util.h" 41 42 static void 43 resource_read(struct fd_batch *batch, struct pipe_resource *prsc) 44 { 45 if (!prsc) 46 return; 47 fd_batch_resource_used(batch, fd_resource(prsc), false); 48 } 49 50 static void 51 resource_written(struct fd_batch *batch, struct pipe_resource *prsc) 52 { 53 if (!prsc) 54 return; 55 fd_batch_resource_used(batch, fd_resource(prsc), true); 56 } 57 58 static void 59 fd_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info) 60 { 61 struct fd_context *ctx = fd_context(pctx); 62 struct fd_batch *batch = ctx->batch; 63 struct pipe_framebuffer_state *pfb = &batch->framebuffer; 64 struct pipe_scissor_state *scissor = fd_context_get_scissor(ctx); 65 unsigned i, prims, buffers = 0; 66 67 /* if we supported transform feedback, we'd have to disable this: */ 68 if (((scissor->maxx - scissor->minx) * 69 (scissor->maxy - scissor->miny)) == 0) { 70 return; 71 } 72 73 /* TODO: push down the region versions into the tiles */ 74 if (!fd_render_condition_check(pctx)) 75 return; 76 77 /* emulate unsupported primitives: */ 78 if (!fd_supported_prim(ctx, info->mode)) { 79 if (ctx->streamout.num_targets > 0) 80 debug_error("stream-out with emulated prims"); 81 util_primconvert_save_index_buffer(ctx->primconvert, &ctx->indexbuf); 82 util_primconvert_save_rasterizer_state(ctx->primconvert, ctx->rasterizer); 83 util_primconvert_draw_vbo(ctx->primconvert, info); 84 return; 85 } 86 87 if (ctx->in_blit) { 88 fd_batch_reset(batch); 89 ctx->dirty = ~0; 90 } 91 92 batch->blit = ctx->in_blit; 93 batch->back_blit = ctx->in_shadow; 94 95 /* NOTE: needs to be before resource_written(batch->query_buf), otherwise 96 * query_buf may not be created yet. 97 */ 98 fd_hw_query_set_stage(batch, batch->draw, FD_STAGE_DRAW); 99 100 /* 101 * Figure out the buffers/features we need: 102 */ 103 104 pipe_mutex_lock(ctx->screen->lock); 105 106 if (fd_depth_enabled(ctx)) { 107 buffers |= FD_BUFFER_DEPTH; 108 resource_written(batch, pfb->zsbuf->texture); 109 batch->gmem_reason |= FD_GMEM_DEPTH_ENABLED; 110 } 111 112 if (fd_stencil_enabled(ctx)) { 113 buffers |= FD_BUFFER_STENCIL; 114 resource_written(batch, pfb->zsbuf->texture); 115 batch->gmem_reason |= FD_GMEM_STENCIL_ENABLED; 116 } 117 118 if (fd_logicop_enabled(ctx)) 119 batch->gmem_reason |= FD_GMEM_LOGICOP_ENABLED; 120 121 for (i = 0; i < pfb->nr_cbufs; i++) { 122 struct pipe_resource *surf; 123 124 if (!pfb->cbufs[i]) 125 continue; 126 127 surf = pfb->cbufs[i]->texture; 128 129 resource_written(batch, surf); 130 buffers |= PIPE_CLEAR_COLOR0 << i; 131 132 if (surf->nr_samples > 1) 133 batch->gmem_reason |= FD_GMEM_MSAA_ENABLED; 134 135 if (fd_blend_enabled(ctx, i)) 136 batch->gmem_reason |= FD_GMEM_BLEND_ENABLED; 137 } 138 139 foreach_bit(i, ctx->constbuf[PIPE_SHADER_VERTEX].enabled_mask) 140 resource_read(batch, ctx->constbuf[PIPE_SHADER_VERTEX].cb[i].buffer); 141 foreach_bit(i, ctx->constbuf[PIPE_SHADER_FRAGMENT].enabled_mask) 142 resource_read(batch, ctx->constbuf[PIPE_SHADER_FRAGMENT].cb[i].buffer); 143 144 /* Mark VBOs as being read */ 145 foreach_bit(i, ctx->vtx.vertexbuf.enabled_mask) { 146 assert(!ctx->vtx.vertexbuf.vb[i].user_buffer); 147 resource_read(batch, ctx->vtx.vertexbuf.vb[i].buffer); 148 } 149 150 /* Mark index buffer as being read */ 151 resource_read(batch, ctx->indexbuf.buffer); 152 153 /* Mark textures as being read */ 154 foreach_bit(i, ctx->verttex.valid_textures) 155 resource_read(batch, ctx->verttex.textures[i]->texture); 156 foreach_bit(i, ctx->fragtex.valid_textures) 157 resource_read(batch, ctx->fragtex.textures[i]->texture); 158 159 /* Mark streamout buffers as being written.. */ 160 for (i = 0; i < ctx->streamout.num_targets; i++) 161 if (ctx->streamout.targets[i]) 162 resource_written(batch, ctx->streamout.targets[i]->buffer); 163 164 resource_written(batch, batch->query_buf); 165 166 pipe_mutex_unlock(ctx->screen->lock); 167 168 batch->num_draws++; 169 170 prims = u_reduced_prims_for_vertices(info->mode, info->count); 171 172 ctx->stats.draw_calls++; 173 174 /* TODO prims_emitted should be clipped when the stream-out buffer is 175 * not large enough. See max_tf_vtx().. probably need to move that 176 * into common code. Although a bit more annoying since a2xx doesn't 177 * use ir3 so no common way to get at the pipe_stream_output_info 178 * which is needed for this calculation. 179 */ 180 if (ctx->streamout.num_targets > 0) 181 ctx->stats.prims_emitted += prims; 182 ctx->stats.prims_generated += prims; 183 184 /* any buffers that haven't been cleared yet, we need to restore: */ 185 batch->restore |= buffers & (FD_BUFFER_ALL & ~batch->cleared); 186 /* and any buffers used, need to be resolved: */ 187 batch->resolve |= buffers; 188 189 DBG("%p: %x %ux%u num_draws=%u (%s/%s)", batch, buffers, 190 pfb->width, pfb->height, batch->num_draws, 191 util_format_short_name(pipe_surface_format(pfb->cbufs[0])), 192 util_format_short_name(pipe_surface_format(pfb->zsbuf))); 193 194 if (ctx->draw_vbo(ctx, info)) 195 batch->needs_flush = true; 196 197 for (i = 0; i < ctx->streamout.num_targets; i++) 198 ctx->streamout.offsets[i] += info->count; 199 200 if (fd_mesa_debug & FD_DBG_DDRAW) 201 ctx->dirty = 0xffffffff; 202 203 fd_batch_check_size(batch); 204 } 205 206 /* Generic clear implementation (partially) using u_blitter: */ 207 static void 208 fd_blitter_clear(struct pipe_context *pctx, unsigned buffers, 209 const union pipe_color_union *color, double depth, unsigned stencil) 210 { 211 struct fd_context *ctx = fd_context(pctx); 212 struct pipe_framebuffer_state *pfb = &ctx->batch->framebuffer; 213 struct blitter_context *blitter = ctx->blitter; 214 215 fd_blitter_pipe_begin(ctx, false, true, FD_STAGE_CLEAR); 216 217 util_blitter_common_clear_setup(blitter, pfb->width, pfb->height, 218 buffers, NULL, NULL); 219 220 struct pipe_stencil_ref sr = { 221 .ref_value = { stencil & 0xff } 222 }; 223 pctx->set_stencil_ref(pctx, &sr); 224 225 struct pipe_constant_buffer cb = { 226 .buffer_size = 16, 227 .user_buffer = &color->ui, 228 }; 229 pctx->set_constant_buffer(pctx, PIPE_SHADER_FRAGMENT, 0, &cb); 230 231 if (!ctx->clear_rs_state) { 232 const struct pipe_rasterizer_state tmpl = { 233 .cull_face = PIPE_FACE_NONE, 234 .half_pixel_center = 1, 235 .bottom_edge_rule = 1, 236 .flatshade = 1, 237 .depth_clip = 1, 238 }; 239 ctx->clear_rs_state = pctx->create_rasterizer_state(pctx, &tmpl); 240 } 241 pctx->bind_rasterizer_state(pctx, ctx->clear_rs_state); 242 243 struct pipe_viewport_state vp = { 244 .scale = { 0.5f * pfb->width, -0.5f * pfb->height, depth }, 245 .translate = { 0.5f * pfb->width, 0.5f * pfb->height, 0.0f }, 246 }; 247 pctx->set_viewport_states(pctx, 0, 1, &vp); 248 249 pctx->bind_vertex_elements_state(pctx, ctx->solid_vbuf_state.vtx); 250 pctx->set_vertex_buffers(pctx, blitter->vb_slot, 1, 251 &ctx->solid_vbuf_state.vertexbuf.vb[0]); 252 pctx->set_stream_output_targets(pctx, 0, NULL, NULL); 253 pctx->bind_vs_state(pctx, ctx->solid_prog.vp); 254 pctx->bind_fs_state(pctx, ctx->solid_prog.fp); 255 256 struct pipe_draw_info info = { 257 .mode = PIPE_PRIM_MAX, /* maps to DI_PT_RECTLIST */ 258 .count = 2, 259 .max_index = 1, 260 .instance_count = 1, 261 }; 262 ctx->draw_vbo(ctx, &info); 263 264 util_blitter_restore_constant_buffer_state(blitter); 265 util_blitter_restore_vertex_states(blitter); 266 util_blitter_restore_fragment_states(blitter); 267 util_blitter_restore_render_cond(blitter); 268 util_blitter_unset_running_flag(blitter); 269 270 fd_blitter_pipe_end(ctx); 271 } 272 273 /* TODO figure out how to make better use of existing state mechanism 274 * for clear (and possibly gmem->mem / mem->gmem) so we can (a) keep 275 * track of what state really actually changes, and (b) reduce the code 276 * in the a2xx/a3xx parts. 277 */ 278 279 static void 280 fd_clear(struct pipe_context *pctx, unsigned buffers, 281 const union pipe_color_union *color, double depth, unsigned stencil) 282 { 283 struct fd_context *ctx = fd_context(pctx); 284 struct fd_batch *batch = ctx->batch; 285 struct pipe_framebuffer_state *pfb = &batch->framebuffer; 286 struct pipe_scissor_state *scissor = fd_context_get_scissor(ctx); 287 unsigned cleared_buffers; 288 int i; 289 290 /* TODO: push down the region versions into the tiles */ 291 if (!fd_render_condition_check(pctx)) 292 return; 293 294 if (ctx->in_blit) { 295 fd_batch_reset(batch); 296 ctx->dirty = ~0; 297 } 298 299 /* for bookkeeping about which buffers have been cleared (and thus 300 * can fully or partially skip mem2gmem) we need to ignore buffers 301 * that have already had a draw, in case apps do silly things like 302 * clear after draw (ie. if you only clear the color buffer, but 303 * something like alpha-test causes side effects from the draw in 304 * the depth buffer, etc) 305 */ 306 cleared_buffers = buffers & (FD_BUFFER_ALL & ~batch->restore); 307 308 /* do we have full-screen scissor? */ 309 if (!memcmp(scissor, &ctx->disabled_scissor, sizeof(*scissor))) { 310 batch->cleared |= cleared_buffers; 311 } else { 312 batch->partial_cleared |= cleared_buffers; 313 if (cleared_buffers & PIPE_CLEAR_COLOR) 314 batch->cleared_scissor.color = *scissor; 315 if (cleared_buffers & PIPE_CLEAR_DEPTH) 316 batch->cleared_scissor.depth = *scissor; 317 if (cleared_buffers & PIPE_CLEAR_STENCIL) 318 batch->cleared_scissor.stencil = *scissor; 319 } 320 batch->resolve |= buffers; 321 batch->needs_flush = true; 322 323 pipe_mutex_lock(ctx->screen->lock); 324 325 if (buffers & PIPE_CLEAR_COLOR) 326 for (i = 0; i < pfb->nr_cbufs; i++) 327 if (buffers & (PIPE_CLEAR_COLOR0 << i)) 328 resource_written(batch, pfb->cbufs[i]->texture); 329 330 if (buffers & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL)) { 331 resource_written(batch, pfb->zsbuf->texture); 332 batch->gmem_reason |= FD_GMEM_CLEARS_DEPTH_STENCIL; 333 } 334 335 resource_written(batch, batch->query_buf); 336 337 pipe_mutex_unlock(ctx->screen->lock); 338 339 DBG("%p: %x %ux%u depth=%f, stencil=%u (%s/%s)", batch, buffers, 340 pfb->width, pfb->height, depth, stencil, 341 util_format_short_name(pipe_surface_format(pfb->cbufs[0])), 342 util_format_short_name(pipe_surface_format(pfb->zsbuf))); 343 344 /* if per-gen backend doesn't implement ctx->clear() generic 345 * blitter clear: 346 */ 347 if (!ctx->clear) { 348 fd_blitter_clear(pctx, buffers, color, depth, stencil); 349 return; 350 } 351 352 fd_hw_query_set_stage(batch, batch->draw, FD_STAGE_CLEAR); 353 354 ctx->clear(ctx, buffers, color, depth, stencil); 355 356 ctx->dirty |= FD_DIRTY_ZSA | 357 FD_DIRTY_VIEWPORT | 358 FD_DIRTY_RASTERIZER | 359 FD_DIRTY_SAMPLE_MASK | 360 FD_DIRTY_PROG | 361 FD_DIRTY_CONSTBUF | 362 FD_DIRTY_BLEND | 363 FD_DIRTY_FRAMEBUFFER; 364 365 if (fd_mesa_debug & FD_DBG_DCLEAR) 366 ctx->dirty = 0xffffffff; 367 } 368 369 static void 370 fd_clear_render_target(struct pipe_context *pctx, struct pipe_surface *ps, 371 const union pipe_color_union *color, 372 unsigned x, unsigned y, unsigned w, unsigned h, 373 bool render_condition_enabled) 374 { 375 DBG("TODO: x=%u, y=%u, w=%u, h=%u", x, y, w, h); 376 } 377 378 static void 379 fd_clear_depth_stencil(struct pipe_context *pctx, struct pipe_surface *ps, 380 unsigned buffers, double depth, unsigned stencil, 381 unsigned x, unsigned y, unsigned w, unsigned h, 382 bool render_condition_enabled) 383 { 384 DBG("TODO: buffers=%u, depth=%f, stencil=%u, x=%u, y=%u, w=%u, h=%u", 385 buffers, depth, stencil, x, y, w, h); 386 } 387 388 void 389 fd_draw_init(struct pipe_context *pctx) 390 { 391 pctx->draw_vbo = fd_draw_vbo; 392 pctx->clear = fd_clear; 393 pctx->clear_render_target = fd_clear_render_target; 394 pctx->clear_depth_stencil = fd_clear_depth_stencil; 395 } 396
