1 /**************************************************************************
2 *
3 * Copyright 2003 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #include "i915_surface.h"
29 #include "i915_resource.h"
30 #include "i915_state.h"
31 #include "i915_blit.h"
32 #include "i915_reg.h"
33 #include "i915_screen.h"
34 #include "pipe/p_defines.h"
35 #include "util/u_inlines.h"
36 #include "util/u_math.h"
37 #include "util/u_format.h"
38 #include "util/u_memory.h"
39 #include "util/u_pack_color.h"
40 #include "util/u_surface.h"
41
42 static struct pipe_surface *
43 i915_create_surface_custom(struct pipe_context *ctx,
44 struct pipe_resource *pt,
45 const struct pipe_surface *surf_tmpl,
46 unsigned width0,
47 unsigned height0);
48 /*
49 * surface functions using the render engine
50 */
51
52 static void
i915_util_blitter_save_states(struct i915_context * i915)53 i915_util_blitter_save_states(struct i915_context *i915)
54 {
55 util_blitter_save_blend(i915->blitter, (void *)i915->blend);
56 util_blitter_save_depth_stencil_alpha(i915->blitter, (void *)i915->depth_stencil);
57 util_blitter_save_stencil_ref(i915->blitter, &i915->stencil_ref);
58 util_blitter_save_rasterizer(i915->blitter, (void *)i915->rasterizer);
59 util_blitter_save_fragment_shader(i915->blitter, i915->fs);
60 util_blitter_save_vertex_shader(i915->blitter, i915->vs);
61 util_blitter_save_viewport(i915->blitter, &i915->viewport);
62 util_blitter_save_scissor(i915->blitter, &i915->scissor);
63 util_blitter_save_vertex_elements(i915->blitter, i915->velems);
64 util_blitter_save_vertex_buffer_slot(i915->blitter,
65 i915->vertex_buffers);
66
67 util_blitter_save_framebuffer(i915->blitter, &i915->framebuffer);
68
69 util_blitter_save_fragment_sampler_states(i915->blitter,
70 i915->num_samplers,
71 (void**)i915->fragment_sampler);
72 util_blitter_save_fragment_sampler_views(i915->blitter,
73 i915->num_fragment_sampler_views,
74 i915->fragment_sampler_views);
75 }
76
77 static void
i915_surface_copy_render(struct pipe_context * pipe,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)78 i915_surface_copy_render(struct pipe_context *pipe,
79 struct pipe_resource *dst, unsigned dst_level,
80 unsigned dstx, unsigned dsty, unsigned dstz,
81 struct pipe_resource *src, unsigned src_level,
82 const struct pipe_box *src_box)
83 {
84 struct i915_context *i915 = i915_context(pipe);
85 unsigned src_width0 = src->width0;
86 unsigned src_height0 = src->height0;
87 unsigned dst_width0 = dst->width0;
88 unsigned dst_height0 = dst->height0;
89 struct pipe_box dstbox;
90 struct pipe_sampler_view src_templ, *src_view;
91 struct pipe_surface dst_templ, *dst_view;
92 const struct util_format_description *desc;
93
94 /* Fallback for buffers. */
95 if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER)
96 goto fallback;
97
98 /* Fallback for depth&stencil. XXX: see if we can use a proxy format */
99 desc = util_format_description(src->format);
100 if (desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
101 goto fallback;
102
103 desc = util_format_description(dst->format);
104 if (desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
105 goto fallback;
106
107 util_blitter_default_dst_texture(&dst_templ, dst, dst_level, dstz);
108 util_blitter_default_src_texture(&src_templ, src, src_level);
109
110 if (!util_blitter_is_copy_supported(i915->blitter, dst, src))
111 goto fallback;
112
113 i915_util_blitter_save_states(i915);
114
115 dst_view = i915_create_surface_custom(pipe, dst, &dst_templ, dst_width0, dst_height0);
116 src_view = i915_create_sampler_view_custom(pipe, src, &src_templ, src_width0, src_height0);
117
118 u_box_3d(dstx, dsty, dstz, abs(src_box->width), abs(src_box->height),
119 abs(src_box->depth), &dstbox);
120
121 util_blitter_blit_generic(i915->blitter, dst_view, &dstbox,
122 src_view, src_box, src_width0, src_height0,
123 PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL,
124 FALSE);
125 return;
126
127 fallback:
128 util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
129 src, src_level, src_box);
130 }
131
132 static void
i915_clear_render_target_render(struct pipe_context * pipe,struct pipe_surface * dst,const union pipe_color_union * color,unsigned dstx,unsigned dsty,unsigned width,unsigned height,bool render_condition_enabled)133 i915_clear_render_target_render(struct pipe_context *pipe,
134 struct pipe_surface *dst,
135 const union pipe_color_union *color,
136 unsigned dstx, unsigned dsty,
137 unsigned width, unsigned height,
138 bool render_condition_enabled)
139 {
140 struct i915_context *i915 = i915_context(pipe);
141 struct pipe_framebuffer_state fb_state;
142
143 util_blitter_save_framebuffer(i915->blitter, &i915->framebuffer);
144
145 fb_state.width = dst->width;
146 fb_state.height = dst->height;
147 fb_state.nr_cbufs = 1;
148 fb_state.cbufs[0] = dst;
149 fb_state.zsbuf = NULL;
150 pipe->set_framebuffer_state(pipe, &fb_state);
151
152 if (i915->dirty)
153 i915_update_derived(i915);
154
155 i915_clear_emit(pipe, PIPE_CLEAR_COLOR, color, 0.0, 0x0,
156 dstx, dsty, width, height);
157
158 pipe->set_framebuffer_state(pipe, &i915->blitter->saved_fb_state);
159 util_unreference_framebuffer_state(&i915->blitter->saved_fb_state);
160 i915->blitter->saved_fb_state.nr_cbufs = ~0;
161 }
162
163 static void
i915_clear_depth_stencil_render(struct pipe_context * pipe,struct pipe_surface * dst,unsigned clear_flags,double depth,unsigned stencil,unsigned dstx,unsigned dsty,unsigned width,unsigned height,bool render_condition_enabled)164 i915_clear_depth_stencil_render(struct pipe_context *pipe,
165 struct pipe_surface *dst,
166 unsigned clear_flags,
167 double depth,
168 unsigned stencil,
169 unsigned dstx, unsigned dsty,
170 unsigned width, unsigned height,
171 bool render_condition_enabled)
172 {
173 struct i915_context *i915 = i915_context(pipe);
174 struct pipe_framebuffer_state fb_state;
175
176 util_blitter_save_framebuffer(i915->blitter, &i915->framebuffer);
177
178 fb_state.width = dst->width;
179 fb_state.height = dst->height;
180 fb_state.nr_cbufs = 0;
181 fb_state.zsbuf = dst;
182 pipe->set_framebuffer_state(pipe, &fb_state);
183
184 if (i915->dirty)
185 i915_update_derived(i915);
186
187 i915_clear_emit(pipe, clear_flags & PIPE_CLEAR_DEPTHSTENCIL,
188 NULL, depth, stencil,
189 dstx, dsty, width, height);
190
191 pipe->set_framebuffer_state(pipe, &i915->blitter->saved_fb_state);
192 util_unreference_framebuffer_state(&i915->blitter->saved_fb_state);
193 i915->blitter->saved_fb_state.nr_cbufs = ~0;
194 }
195
196 /*
197 * surface functions using the blitter
198 */
199
200 /* Assumes all values are within bounds -- no checking at this level -
201 * do it higher up if required.
202 */
203 static void
i915_surface_copy_blitter(struct pipe_context * pipe,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)204 i915_surface_copy_blitter(struct pipe_context *pipe,
205 struct pipe_resource *dst, unsigned dst_level,
206 unsigned dstx, unsigned dsty, unsigned dstz,
207 struct pipe_resource *src, unsigned src_level,
208 const struct pipe_box *src_box)
209 {
210 struct i915_texture *dst_tex = i915_texture(dst);
211 struct i915_texture *src_tex = i915_texture(src);
212 struct pipe_resource *dpt = &dst_tex->b.b;
213 struct pipe_resource *spt = &src_tex->b.b;
214 unsigned dst_offset, src_offset; /* in bytes */
215
216 /* Fallback for buffers. */
217 if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
218 util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
219 src, src_level, src_box);
220 return;
221 }
222
223 /* XXX cannot copy 3d regions at this time */
224 assert(src_box->depth == 1);
225 if (dst->target != PIPE_TEXTURE_CUBE &&
226 dst->target != PIPE_TEXTURE_3D)
227 assert(dstz == 0);
228 dst_offset = i915_texture_offset(dst_tex, dst_level, dstz);
229
230 if (src->target != PIPE_TEXTURE_CUBE &&
231 src->target != PIPE_TEXTURE_3D)
232 assert(src_box->z == 0);
233 src_offset = i915_texture_offset(src_tex, src_level, src_box->z);
234
235 assert( util_format_get_blocksize(dpt->format) == util_format_get_blocksize(spt->format) );
236 assert( util_format_get_blockwidth(dpt->format) == util_format_get_blockwidth(spt->format) );
237 assert( util_format_get_blockheight(dpt->format) == util_format_get_blockheight(spt->format) );
238 assert( util_format_get_blockwidth(dpt->format) == 1 );
239 assert( util_format_get_blockheight(dpt->format) == 1 );
240
241 i915_copy_blit( i915_context(pipe),
242 util_format_get_blocksize(dpt->format),
243 (unsigned short) src_tex->stride, src_tex->buffer, src_offset,
244 (unsigned short) dst_tex->stride, dst_tex->buffer, dst_offset,
245 (short) src_box->x, (short) src_box->y, (short) dstx, (short) dsty,
246 (short) src_box->width, (short) src_box->height );
247 }
248
249 static void
i915_blit(struct pipe_context * pipe,const struct pipe_blit_info * blit_info)250 i915_blit(struct pipe_context *pipe, const struct pipe_blit_info *blit_info)
251 {
252 struct i915_context *i915 = i915_context(pipe);
253 struct pipe_blit_info info = *blit_info;
254
255 if (util_try_blit_via_copy_region(pipe, &info)) {
256 return; /* done */
257 }
258
259 if (info.mask & PIPE_MASK_S) {
260 debug_printf("i915: cannot blit stencil, skipping\n");
261 info.mask &= ~PIPE_MASK_S;
262 }
263
264 if (!util_blitter_is_blit_supported(i915->blitter, &info)) {
265 debug_printf("i915: blit unsupported %s -> %s\n",
266 util_format_short_name(info.src.resource->format),
267 util_format_short_name(info.dst.resource->format));
268 return;
269 }
270
271 i915_util_blitter_save_states(i915);
272
273 util_blitter_blit(i915->blitter, &info);
274 }
275
276 static void
i915_flush_resource(struct pipe_context * ctx,struct pipe_resource * resource)277 i915_flush_resource(struct pipe_context *ctx, struct pipe_resource *resource)
278 {
279 }
280
281 static void
i915_clear_render_target_blitter(struct pipe_context * pipe,struct pipe_surface * dst,const union pipe_color_union * color,unsigned dstx,unsigned dsty,unsigned width,unsigned height,bool render_condition_enabled)282 i915_clear_render_target_blitter(struct pipe_context *pipe,
283 struct pipe_surface *dst,
284 const union pipe_color_union *color,
285 unsigned dstx, unsigned dsty,
286 unsigned width, unsigned height,
287 bool render_condition_enabled)
288 {
289 struct i915_texture *tex = i915_texture(dst->texture);
290 struct pipe_resource *pt = &tex->b.b;
291 union util_color uc;
292 unsigned offset = i915_texture_offset(tex, dst->u.tex.level, dst->u.tex.first_layer);
293
294 assert(util_format_get_blockwidth(pt->format) == 1);
295 assert(util_format_get_blockheight(pt->format) == 1);
296
297 util_pack_color(color->f, dst->format, &uc);
298 i915_fill_blit( i915_context(pipe),
299 util_format_get_blocksize(pt->format),
300 XY_COLOR_BLT_WRITE_ALPHA | XY_COLOR_BLT_WRITE_RGB,
301 (unsigned short) tex->stride,
302 tex->buffer, offset,
303 (short) dstx, (short) dsty,
304 (short) width, (short) height,
305 uc.ui[0] );
306 }
307
308 static void
i915_clear_depth_stencil_blitter(struct pipe_context * pipe,struct pipe_surface * dst,unsigned clear_flags,double depth,unsigned stencil,unsigned dstx,unsigned dsty,unsigned width,unsigned height,bool render_condition_enabled)309 i915_clear_depth_stencil_blitter(struct pipe_context *pipe,
310 struct pipe_surface *dst,
311 unsigned clear_flags,
312 double depth,
313 unsigned stencil,
314 unsigned dstx, unsigned dsty,
315 unsigned width, unsigned height,
316 bool render_condition_enabled)
317 {
318 struct i915_texture *tex = i915_texture(dst->texture);
319 struct pipe_resource *pt = &tex->b.b;
320 unsigned packedds;
321 unsigned mask = 0;
322 unsigned offset = i915_texture_offset(tex, dst->u.tex.level, dst->u.tex.first_layer);
323
324 assert(util_format_get_blockwidth(pt->format) == 1);
325 assert(util_format_get_blockheight(pt->format) == 1);
326
327 packedds = util_pack_z_stencil(dst->format, depth, stencil);
328
329 if (clear_flags & PIPE_CLEAR_DEPTH)
330 mask |= XY_COLOR_BLT_WRITE_RGB;
331 /* XXX presumably this does read-modify-write
332 (otherwise this won't work anyway). Hence will only want to
333 do it if really have stencil and it isn't cleared */
334 if ((clear_flags & PIPE_CLEAR_STENCIL) ||
335 (dst->format != PIPE_FORMAT_Z24_UNORM_S8_UINT))
336 mask |= XY_COLOR_BLT_WRITE_ALPHA;
337
338 i915_fill_blit( i915_context(pipe),
339 util_format_get_blocksize(pt->format),
340 mask,
341 (unsigned short) tex->stride,
342 tex->buffer, offset,
343 (short) dstx, (short) dsty,
344 (short) width, (short) height,
345 packedds );
346 }
347
348 /*
349 * Screen surface functions
350 */
351
352
353 static struct pipe_surface *
i915_create_surface_custom(struct pipe_context * ctx,struct pipe_resource * pt,const struct pipe_surface * surf_tmpl,unsigned width0,unsigned height0)354 i915_create_surface_custom(struct pipe_context *ctx,
355 struct pipe_resource *pt,
356 const struct pipe_surface *surf_tmpl,
357 unsigned width0,
358 unsigned height0)
359 {
360 struct pipe_surface *ps;
361
362 assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
363 if (pt->target != PIPE_TEXTURE_CUBE &&
364 pt->target != PIPE_TEXTURE_3D)
365 assert(surf_tmpl->u.tex.first_layer == 0);
366
367 ps = CALLOC_STRUCT(pipe_surface);
368 if (ps) {
369 /* could subclass pipe_surface and store offset as it used to do */
370 pipe_reference_init(&ps->reference, 1);
371 pipe_resource_reference(&ps->texture, pt);
372 ps->format = surf_tmpl->format;
373 ps->width = u_minify(width0, surf_tmpl->u.tex.level);
374 ps->height = u_minify(height0, surf_tmpl->u.tex.level);
375 ps->u.tex.level = surf_tmpl->u.tex.level;
376 ps->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
377 ps->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
378 ps->context = ctx;
379 }
380 return ps;
381 }
382
383 static struct pipe_surface *
i915_create_surface(struct pipe_context * ctx,struct pipe_resource * pt,const struct pipe_surface * surf_tmpl)384 i915_create_surface(struct pipe_context *ctx,
385 struct pipe_resource *pt,
386 const struct pipe_surface *surf_tmpl)
387 {
388 return i915_create_surface_custom(ctx, pt, surf_tmpl,
389 pt->width0, pt->height0);
390 }
391
392 static void
i915_surface_destroy(struct pipe_context * ctx,struct pipe_surface * surf)393 i915_surface_destroy(struct pipe_context *ctx,
394 struct pipe_surface *surf)
395 {
396 pipe_resource_reference(&surf->texture, NULL);
397 FREE(surf);
398 }
399
400
401 void
i915_init_surface_functions(struct i915_context * i915)402 i915_init_surface_functions(struct i915_context *i915)
403 {
404 if (i915_screen(i915->base.screen)->debug.use_blitter) {
405 i915->base.resource_copy_region = i915_surface_copy_blitter;
406 i915->base.clear_render_target = i915_clear_render_target_blitter;
407 i915->base.clear_depth_stencil = i915_clear_depth_stencil_blitter;
408 } else {
409 i915->base.resource_copy_region = i915_surface_copy_render;
410 i915->base.clear_render_target = i915_clear_render_target_render;
411 i915->base.clear_depth_stencil = i915_clear_depth_stencil_render;
412 }
413 i915->base.blit = i915_blit;
414 i915->base.flush_resource = i915_flush_resource;
415 i915->base.create_surface = i915_create_surface;
416 i915->base.surface_destroy = i915_surface_destroy;
417 }
418