1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
2
3 /*
4 * Copyright (C) 2012 Rob Clark <robclark@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@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
resource_read(struct fd_batch * batch,struct pipe_resource * prsc)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
resource_written(struct fd_batch * batch,struct pipe_resource * prsc)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
fd_draw_vbo(struct pipe_context * pctx,const struct pipe_draw_info * info)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
fd_blitter_clear(struct pipe_context * pctx,unsigned buffers,const union pipe_color_union * color,double depth,unsigned stencil)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
fd_clear(struct pipe_context * pctx,unsigned buffers,const union pipe_color_union * color,double depth,unsigned stencil)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
fd_clear_render_target(struct pipe_context * pctx,struct pipe_surface * ps,const union pipe_color_union * color,unsigned x,unsigned y,unsigned w,unsigned h,bool render_condition_enabled)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
fd_clear_depth_stencil(struct pipe_context * pctx,struct pipe_surface * ps,unsigned buffers,double depth,unsigned stencil,unsigned x,unsigned y,unsigned w,unsigned h,bool render_condition_enabled)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
fd_draw_init(struct pipe_context * pctx)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