1 /**************************************************************************
3 * Copyright 2009 Marek Olšák <maraeo@gmail.com>
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 **************************************************************************/
29 * Blitter utility to facilitate acceleration of the clear, clear_render_target, clear_depth_stencil
30 * resource_copy_region functions.
35 #include "pipe/p_context.h"
36 #include "pipe/p_defines.h"
37 #include "util/u_inlines.h"
38 #include "pipe/p_shader_tokens.h"
39 #include "pipe/p_state.h"
41 #include "util/u_format.h"
42 #include "util/u_memory.h"
43 #include "util/u_math.h"
44 #include "util/u_blitter.h"
45 #include "util/u_draw_quad.h"
46 #include "util/u_sampler.h"
47 #include "util/u_simple_shaders.h"
48 #include "util/u_surface.h"
49 #include "util/u_texture.h"
51 #define INVALID_PTR ((void*)~0)
53 struct blitter_context_priv
55 struct blitter_context base
;
57 struct pipe_resource
*vbuf
; /**< quad */
59 float vertices
[4][2][4]; /**< {pos, color} or {pos, texcoord} */
61 /* Templates for various state objects. */
62 struct pipe_sampler_state template_sampler_state
;
64 /* Constant state objects. */
66 void *vs_col
; /**< Vertex shader which passes {pos, color} to the output */
67 void *vs_tex
; /**< Vertex shader which passes {pos, texcoord} to the output.*/
69 /* Fragment shaders. */
70 /* The shader at index i outputs color to color buffers 0,1,...,i-1. */
71 void *fs_col
[PIPE_MAX_COLOR_BUFS
+1];
73 /* FS which outputs a color from a texture,
74 where the index is PIPE_TEXTURE_* to be sampled. */
75 void *fs_texfetch_col
[PIPE_MAX_TEXTURE_TYPES
];
77 /* FS which outputs a depth from a texture,
78 where the index is PIPE_TEXTURE_* to be sampled. */
79 void *fs_texfetch_depth
[PIPE_MAX_TEXTURE_TYPES
];
82 void *blend_write_color
; /**< blend state with writemask of RGBA */
83 void *blend_keep_color
; /**< blend state with writemask of 0 */
85 /* Depth stencil alpha state. */
86 void *dsa_write_depth_stencil
;
87 void *dsa_write_depth_keep_stencil
;
88 void *dsa_keep_depth_stencil
;
89 void *dsa_keep_depth_write_stencil
;
93 /* Sampler state for clamping to a miplevel. */
94 void *sampler_state
[PIPE_MAX_TEXTURE_LEVELS
];
96 /* Rasterizer state. */
100 struct pipe_viewport_state viewport
;
103 struct pipe_clip_state clip
;
105 /* Destination surface dimensions. */
110 static void blitter_draw_rectangle(struct blitter_context
*blitter
,
111 unsigned x
, unsigned y
,
112 unsigned width
, unsigned height
,
114 enum blitter_attrib_type type
,
115 const float attrib
[4]);
118 struct blitter_context
*util_blitter_create(struct pipe_context
*pipe
)
120 struct blitter_context_priv
*ctx
;
121 struct pipe_blend_state blend
;
122 struct pipe_depth_stencil_alpha_state dsa
;
123 struct pipe_rasterizer_state rs_state
;
124 struct pipe_sampler_state
*sampler_state
;
125 struct pipe_vertex_element velem
[2];
128 ctx
= CALLOC_STRUCT(blitter_context_priv
);
132 ctx
->base
.pipe
= pipe
;
133 ctx
->base
.draw_rectangle
= blitter_draw_rectangle
;
135 /* init state objects for them to be considered invalid */
136 ctx
->base
.saved_blend_state
= INVALID_PTR
;
137 ctx
->base
.saved_dsa_state
= INVALID_PTR
;
138 ctx
->base
.saved_rs_state
= INVALID_PTR
;
139 ctx
->base
.saved_fs
= INVALID_PTR
;
140 ctx
->base
.saved_vs
= INVALID_PTR
;
141 ctx
->base
.saved_velem_state
= INVALID_PTR
;
142 ctx
->base
.saved_fb_state
.nr_cbufs
= ~0;
143 ctx
->base
.saved_num_sampler_views
= ~0;
144 ctx
->base
.saved_num_sampler_states
= ~0;
145 ctx
->base
.saved_num_vertex_buffers
= ~0;
147 /* blend state objects */
148 memset(&blend
, 0, sizeof(blend
));
149 ctx
->blend_keep_color
= pipe
->create_blend_state(pipe
, &blend
);
151 blend
.rt
[0].colormask
= PIPE_MASK_RGBA
;
152 ctx
->blend_write_color
= pipe
->create_blend_state(pipe
, &blend
);
154 /* depth stencil alpha state objects */
155 memset(&dsa
, 0, sizeof(dsa
));
156 ctx
->dsa_keep_depth_stencil
=
157 pipe
->create_depth_stencil_alpha_state(pipe
, &dsa
);
159 dsa
.depth
.enabled
= 1;
160 dsa
.depth
.writemask
= 1;
161 dsa
.depth
.func
= PIPE_FUNC_ALWAYS
;
162 ctx
->dsa_write_depth_keep_stencil
=
163 pipe
->create_depth_stencil_alpha_state(pipe
, &dsa
);
165 dsa
.stencil
[0].enabled
= 1;
166 dsa
.stencil
[0].func
= PIPE_FUNC_ALWAYS
;
167 dsa
.stencil
[0].fail_op
= PIPE_STENCIL_OP_REPLACE
;
168 dsa
.stencil
[0].zpass_op
= PIPE_STENCIL_OP_REPLACE
;
169 dsa
.stencil
[0].zfail_op
= PIPE_STENCIL_OP_REPLACE
;
170 dsa
.stencil
[0].valuemask
= 0xff;
171 dsa
.stencil
[0].writemask
= 0xff;
172 ctx
->dsa_write_depth_stencil
=
173 pipe
->create_depth_stencil_alpha_state(pipe
, &dsa
);
176 dsa
.depth
.enabled
= 0;
177 dsa
.depth
.writemask
= 0;
178 ctx
->dsa_keep_depth_write_stencil
=
179 pipe
->create_depth_stencil_alpha_state(pipe
, &dsa
);
182 sampler_state
= &ctx
->template_sampler_state
;
183 sampler_state
->wrap_s
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
184 sampler_state
->wrap_t
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
185 sampler_state
->wrap_r
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
186 sampler_state
->normalized_coords
= TRUE
;
187 /* The sampler state objects which sample from a specified mipmap level
188 * are created on-demand. */
190 /* rasterizer state */
191 memset(&rs_state
, 0, sizeof(rs_state
));
192 rs_state
.cull_face
= PIPE_FACE_NONE
;
193 rs_state
.gl_rasterization_rules
= 1;
194 rs_state
.flatshade
= 1;
195 ctx
->rs_state
= pipe
->create_rasterizer_state(pipe
, &rs_state
);
197 /* vertex elements state */
198 memset(&velem
[0], 0, sizeof(velem
[0]) * 2);
199 for (i
= 0; i
< 2; i
++) {
200 velem
[i
].src_offset
= i
* 4 * sizeof(float);
201 velem
[i
].instance_divisor
= 0;
202 velem
[i
].vertex_buffer_index
= 0;
203 velem
[i
].src_format
= PIPE_FORMAT_R32G32B32A32_FLOAT
;
205 ctx
->velem_state
= pipe
->create_vertex_elements_state(pipe
, 2, &velem
[0]);
207 /* fragment shaders are created on-demand */
211 const uint semantic_names
[] = { TGSI_SEMANTIC_POSITION
,
212 TGSI_SEMANTIC_COLOR
};
213 const uint semantic_indices
[] = { 0, 0 };
215 util_make_vertex_passthrough_shader(pipe
, 2, semantic_names
,
219 const uint semantic_names
[] = { TGSI_SEMANTIC_POSITION
,
220 TGSI_SEMANTIC_GENERIC
};
221 const uint semantic_indices
[] = { 0, 0 };
223 util_make_vertex_passthrough_shader(pipe
, 2, semantic_names
,
227 /* set invariant vertex coordinates */
228 for (i
= 0; i
< 4; i
++)
229 ctx
->vertices
[i
][0][3] = 1; /*v.w*/
231 /* create the vertex buffer */
232 ctx
->vbuf
= pipe_buffer_create(ctx
->base
.pipe
->screen
,
233 PIPE_BIND_VERTEX_BUFFER
,
234 sizeof(ctx
->vertices
));
239 void util_blitter_destroy(struct blitter_context
*blitter
)
241 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
242 struct pipe_context
*pipe
= blitter
->pipe
;
245 pipe
->delete_blend_state(pipe
, ctx
->blend_write_color
);
246 pipe
->delete_blend_state(pipe
, ctx
->blend_keep_color
);
247 pipe
->delete_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
248 pipe
->delete_depth_stencil_alpha_state(pipe
,
249 ctx
->dsa_write_depth_keep_stencil
);
250 pipe
->delete_depth_stencil_alpha_state(pipe
, ctx
->dsa_write_depth_stencil
);
251 pipe
->delete_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_write_stencil
);
253 pipe
->delete_rasterizer_state(pipe
, ctx
->rs_state
);
254 pipe
->delete_vs_state(pipe
, ctx
->vs_col
);
255 pipe
->delete_vs_state(pipe
, ctx
->vs_tex
);
256 pipe
->delete_vertex_elements_state(pipe
, ctx
->velem_state
);
258 for (i
= 0; i
< PIPE_MAX_TEXTURE_TYPES
; i
++) {
259 if (ctx
->fs_texfetch_col
[i
])
260 pipe
->delete_fs_state(pipe
, ctx
->fs_texfetch_col
[i
]);
261 if (ctx
->fs_texfetch_depth
[i
])
262 pipe
->delete_fs_state(pipe
, ctx
->fs_texfetch_depth
[i
]);
265 for (i
= 0; i
<= PIPE_MAX_COLOR_BUFS
&& ctx
->fs_col
[i
]; i
++)
267 pipe
->delete_fs_state(pipe
, ctx
->fs_col
[i
]);
269 for (i
= 0; i
< PIPE_MAX_TEXTURE_LEVELS
; i
++)
270 if (ctx
->sampler_state
[i
])
271 pipe
->delete_sampler_state(pipe
, ctx
->sampler_state
[i
]);
273 pipe_resource_reference(&ctx
->vbuf
, NULL
);
277 static void blitter_check_saved_CSOs(struct blitter_context_priv
*ctx
)
279 /* make sure these CSOs have been saved */
280 assert(ctx
->base
.saved_blend_state
!= INVALID_PTR
&&
281 ctx
->base
.saved_dsa_state
!= INVALID_PTR
&&
282 ctx
->base
.saved_rs_state
!= INVALID_PTR
&&
283 ctx
->base
.saved_fs
!= INVALID_PTR
&&
284 ctx
->base
.saved_vs
!= INVALID_PTR
&&
285 ctx
->base
.saved_velem_state
!= INVALID_PTR
);
288 static void blitter_restore_CSOs(struct blitter_context_priv
*ctx
)
290 struct pipe_context
*pipe
= ctx
->base
.pipe
;
293 /* restore the state objects which are always required to be saved */
294 pipe
->bind_blend_state(pipe
, ctx
->base
.saved_blend_state
);
295 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->base
.saved_dsa_state
);
296 pipe
->bind_rasterizer_state(pipe
, ctx
->base
.saved_rs_state
);
297 pipe
->bind_fs_state(pipe
, ctx
->base
.saved_fs
);
298 pipe
->bind_vs_state(pipe
, ctx
->base
.saved_vs
);
299 pipe
->bind_vertex_elements_state(pipe
, ctx
->base
.saved_velem_state
);
301 ctx
->base
.saved_blend_state
= INVALID_PTR
;
302 ctx
->base
.saved_dsa_state
= INVALID_PTR
;
303 ctx
->base
.saved_rs_state
= INVALID_PTR
;
304 ctx
->base
.saved_fs
= INVALID_PTR
;
305 ctx
->base
.saved_vs
= INVALID_PTR
;
306 ctx
->base
.saved_velem_state
= INVALID_PTR
;
308 pipe
->set_stencil_ref(pipe
, &ctx
->base
.saved_stencil_ref
);
310 pipe
->set_viewport_state(pipe
, &ctx
->base
.saved_viewport
);
311 pipe
->set_clip_state(pipe
, &ctx
->base
.saved_clip
);
313 /* restore the state objects which are required to be saved before copy/fill
315 if (ctx
->base
.saved_fb_state
.nr_cbufs
!= ~0) {
316 pipe
->set_framebuffer_state(pipe
, &ctx
->base
.saved_fb_state
);
317 util_assign_framebuffer_state(&ctx
->base
.saved_fb_state
, NULL
);
318 ctx
->base
.saved_fb_state
.nr_cbufs
= ~0;
321 if (ctx
->base
.saved_num_sampler_states
!= ~0) {
322 pipe
->bind_fragment_sampler_states(pipe
,
323 ctx
->base
.saved_num_sampler_states
,
324 ctx
->base
.saved_sampler_states
);
325 ctx
->base
.saved_num_sampler_states
= ~0;
328 if (ctx
->base
.saved_num_sampler_views
!= ~0) {
329 pipe
->set_fragment_sampler_views(pipe
,
330 ctx
->base
.saved_num_sampler_views
,
331 ctx
->base
.saved_sampler_views
);
333 for (i
= 0; i
< ctx
->base
.saved_num_sampler_views
; i
++)
334 pipe_sampler_view_reference(&ctx
->base
.saved_sampler_views
[i
],
337 ctx
->base
.saved_num_sampler_views
= ~0;
340 if (ctx
->base
.saved_num_vertex_buffers
!= ~0) {
341 pipe
->set_vertex_buffers(pipe
,
342 ctx
->base
.saved_num_vertex_buffers
,
343 ctx
->base
.saved_vertex_buffers
);
345 for (i
= 0; i
< ctx
->base
.saved_num_vertex_buffers
; i
++) {
346 if (ctx
->base
.saved_vertex_buffers
[i
].buffer
) {
347 pipe_resource_reference(&ctx
->base
.saved_vertex_buffers
[i
].buffer
,
351 ctx
->base
.saved_num_vertex_buffers
= ~0;
355 static void blitter_set_rectangle(struct blitter_context_priv
*ctx
,
356 unsigned x1
, unsigned y1
,
357 unsigned x2
, unsigned y2
,
362 /* set vertex positions */
363 ctx
->vertices
[0][0][0] = (float)x1
/ ctx
->dst_width
* 2.0f
- 1.0f
; /*v0.x*/
364 ctx
->vertices
[0][0][1] = (float)y1
/ ctx
->dst_height
* 2.0f
- 1.0f
; /*v0.y*/
366 ctx
->vertices
[1][0][0] = (float)x2
/ ctx
->dst_width
* 2.0f
- 1.0f
; /*v1.x*/
367 ctx
->vertices
[1][0][1] = (float)y1
/ ctx
->dst_height
* 2.0f
- 1.0f
; /*v1.y*/
369 ctx
->vertices
[2][0][0] = (float)x2
/ ctx
->dst_width
* 2.0f
- 1.0f
; /*v2.x*/
370 ctx
->vertices
[2][0][1] = (float)y2
/ ctx
->dst_height
* 2.0f
- 1.0f
; /*v2.y*/
372 ctx
->vertices
[3][0][0] = (float)x1
/ ctx
->dst_width
* 2.0f
- 1.0f
; /*v3.x*/
373 ctx
->vertices
[3][0][1] = (float)y2
/ ctx
->dst_height
* 2.0f
- 1.0f
; /*v3.y*/
375 for (i
= 0; i
< 4; i
++)
376 ctx
->vertices
[i
][0][2] = depth
; /*z*/
379 ctx
->viewport
.scale
[0] = 0.5f
* ctx
->dst_width
;
380 ctx
->viewport
.scale
[1] = 0.5f
* ctx
->dst_height
;
381 ctx
->viewport
.scale
[2] = 1.0f
;
382 ctx
->viewport
.scale
[3] = 1.0f
;
383 ctx
->viewport
.translate
[0] = 0.5f
* ctx
->dst_width
;
384 ctx
->viewport
.translate
[1] = 0.5f
* ctx
->dst_height
;
385 ctx
->viewport
.translate
[2] = 0.0f
;
386 ctx
->viewport
.translate
[3] = 0.0f
;
387 ctx
->base
.pipe
->set_viewport_state(ctx
->base
.pipe
, &ctx
->viewport
);
390 ctx
->base
.pipe
->set_clip_state(ctx
->base
.pipe
, &ctx
->clip
);
393 static void blitter_set_clear_color(struct blitter_context_priv
*ctx
,
399 for (i
= 0; i
< 4; i
++) {
400 ctx
->vertices
[i
][1][0] = rgba
[0];
401 ctx
->vertices
[i
][1][1] = rgba
[1];
402 ctx
->vertices
[i
][1][2] = rgba
[2];
403 ctx
->vertices
[i
][1][3] = rgba
[3];
406 for (i
= 0; i
< 4; i
++) {
407 ctx
->vertices
[i
][1][0] = 0;
408 ctx
->vertices
[i
][1][1] = 0;
409 ctx
->vertices
[i
][1][2] = 0;
410 ctx
->vertices
[i
][1][3] = 0;
415 static void get_normalized_texcoords(struct pipe_resource
*src
,
416 struct pipe_subresource subsrc
,
417 unsigned x1
, unsigned y1
,
418 unsigned x2
, unsigned y2
,
421 out
[0] = x1
/ (float)u_minify(src
->width0
, subsrc
.level
);
422 out
[1] = y1
/ (float)u_minify(src
->height0
, subsrc
.level
);
423 out
[2] = x2
/ (float)u_minify(src
->width0
, subsrc
.level
);
424 out
[3] = y2
/ (float)u_minify(src
->height0
, subsrc
.level
);
427 static void set_texcoords_in_vertices(const float coord
[4],
428 float *out
, unsigned stride
)
430 out
[0] = coord
[0]; /*t0.s*/
431 out
[1] = coord
[1]; /*t0.t*/
433 out
[0] = coord
[2]; /*t1.s*/
434 out
[1] = coord
[1]; /*t1.t*/
436 out
[0] = coord
[2]; /*t2.s*/
437 out
[1] = coord
[3]; /*t2.t*/
439 out
[0] = coord
[0]; /*t3.s*/
440 out
[1] = coord
[3]; /*t3.t*/
443 static void blitter_set_texcoords_2d(struct blitter_context_priv
*ctx
,
444 struct pipe_resource
*src
,
445 struct pipe_subresource subsrc
,
446 unsigned x1
, unsigned y1
,
447 unsigned x2
, unsigned y2
)
452 get_normalized_texcoords(src
, subsrc
, x1
, y1
, x2
, y2
, coord
);
453 set_texcoords_in_vertices(coord
, &ctx
->vertices
[0][1][0], 8);
455 for (i
= 0; i
< 4; i
++) {
456 ctx
->vertices
[i
][1][2] = 0; /*r*/
457 ctx
->vertices
[i
][1][3] = 1; /*q*/
461 static void blitter_set_texcoords_3d(struct blitter_context_priv
*ctx
,
462 struct pipe_resource
*src
,
463 struct pipe_subresource subsrc
,
465 unsigned x1
, unsigned y1
,
466 unsigned x2
, unsigned y2
)
469 float r
= zslice
/ (float)u_minify(src
->depth0
, subsrc
.level
);
471 blitter_set_texcoords_2d(ctx
, src
, subsrc
, x1
, y1
, x2
, y2
);
473 for (i
= 0; i
< 4; i
++)
474 ctx
->vertices
[i
][1][2] = r
; /*r*/
477 static void blitter_set_texcoords_cube(struct blitter_context_priv
*ctx
,
478 struct pipe_resource
*src
,
479 struct pipe_subresource subsrc
,
480 unsigned x1
, unsigned y1
,
481 unsigned x2
, unsigned y2
)
487 get_normalized_texcoords(src
, subsrc
, x1
, y1
, x2
, y2
, coord
);
488 set_texcoords_in_vertices(coord
, &st
[0][0], 2);
490 util_map_texcoords2d_onto_cubemap(subsrc
.face
,
491 /* pointer, stride in floats */
493 &ctx
->vertices
[0][1][0], 8);
495 for (i
= 0; i
< 4; i
++)
496 ctx
->vertices
[i
][1][3] = 1; /*q*/
499 static void blitter_set_dst_dimensions(struct blitter_context_priv
*ctx
,
500 unsigned width
, unsigned height
)
502 ctx
->dst_width
= width
;
503 ctx
->dst_height
= height
;
506 static void blitter_draw_quad(struct blitter_context_priv
*ctx
)
508 struct pipe_context
*pipe
= ctx
->base
.pipe
;
510 /* write vertices and draw them */
511 pipe_buffer_write(pipe
, ctx
->vbuf
,
512 0, sizeof(ctx
->vertices
), ctx
->vertices
);
514 util_draw_vertex_buffer(pipe
, ctx
->vbuf
, 0, PIPE_PRIM_TRIANGLE_FAN
,
516 2); /* attribs/vert */
520 void **blitter_get_sampler_state(struct blitter_context_priv
*ctx
,
523 struct pipe_context
*pipe
= ctx
->base
.pipe
;
524 struct pipe_sampler_state
*sampler_state
= &ctx
->template_sampler_state
;
526 assert(miplevel
< PIPE_MAX_TEXTURE_LEVELS
);
528 /* Create the sampler state on-demand. */
529 if (!ctx
->sampler_state
[miplevel
]) {
530 sampler_state
->lod_bias
= miplevel
;
531 sampler_state
->min_lod
= miplevel
;
532 sampler_state
->max_lod
= miplevel
;
534 ctx
->sampler_state
[miplevel
] = pipe
->create_sampler_state(pipe
,
538 /* Return void** so that it can be passed to bind_fragment_sampler_states
540 return &ctx
->sampler_state
[miplevel
];
544 void *blitter_get_fs_col(struct blitter_context_priv
*ctx
, unsigned num_cbufs
)
546 struct pipe_context
*pipe
= ctx
->base
.pipe
;
548 assert(num_cbufs
<= PIPE_MAX_COLOR_BUFS
);
550 if (!ctx
->fs_col
[num_cbufs
])
551 ctx
->fs_col
[num_cbufs
] =
552 util_make_fragment_clonecolor_shader(pipe
, num_cbufs
);
554 return ctx
->fs_col
[num_cbufs
];
557 /** Convert PIPE_TEXTURE_x to TGSI_TEXTURE_x */
559 pipe_tex_to_tgsi_tex(enum pipe_texture_target pipe_tex_target
)
561 switch (pipe_tex_target
) {
562 case PIPE_TEXTURE_1D
:
563 return TGSI_TEXTURE_1D
;
564 case PIPE_TEXTURE_2D
:
565 return TGSI_TEXTURE_2D
;
566 case PIPE_TEXTURE_3D
:
567 return TGSI_TEXTURE_3D
;
568 case PIPE_TEXTURE_CUBE
:
569 return TGSI_TEXTURE_CUBE
;
571 assert(0 && "unexpected texture target");
572 return TGSI_TEXTURE_UNKNOWN
;
578 void *blitter_get_fs_texfetch_col(struct blitter_context_priv
*ctx
,
581 struct pipe_context
*pipe
= ctx
->base
.pipe
;
583 assert(tex_target
< PIPE_MAX_TEXTURE_TYPES
);
585 /* Create the fragment shader on-demand. */
586 if (!ctx
->fs_texfetch_col
[tex_target
]) {
587 unsigned tgsi_tex
= pipe_tex_to_tgsi_tex(tex_target
);
589 ctx
->fs_texfetch_col
[tex_target
] =
590 util_make_fragment_tex_shader(pipe
, tgsi_tex
, TGSI_INTERPOLATE_LINEAR
);
593 return ctx
->fs_texfetch_col
[tex_target
];
597 void *blitter_get_fs_texfetch_depth(struct blitter_context_priv
*ctx
,
600 struct pipe_context
*pipe
= ctx
->base
.pipe
;
602 assert(tex_target
< PIPE_MAX_TEXTURE_TYPES
);
604 /* Create the fragment shader on-demand. */
605 if (!ctx
->fs_texfetch_depth
[tex_target
]) {
606 unsigned tgsi_tex
= pipe_tex_to_tgsi_tex(tex_target
);
608 ctx
->fs_texfetch_depth
[tex_target
] =
609 util_make_fragment_tex_shader_writedepth(pipe
, tgsi_tex
,
610 TGSI_INTERPOLATE_LINEAR
);
613 return ctx
->fs_texfetch_depth
[tex_target
];
616 static void blitter_draw_rectangle(struct blitter_context
*blitter
,
617 unsigned x1
, unsigned y1
,
618 unsigned x2
, unsigned y2
,
620 enum blitter_attrib_type type
,
621 const float attrib
[4])
623 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
626 case UTIL_BLITTER_ATTRIB_COLOR
:
627 blitter_set_clear_color(ctx
, attrib
);
630 case UTIL_BLITTER_ATTRIB_TEXCOORD
:
631 set_texcoords_in_vertices(attrib
, &ctx
->vertices
[0][1][0], 8);
637 blitter_set_rectangle(ctx
, x1
, y1
, x2
, y2
, depth
);
638 blitter_draw_quad(ctx
);
641 void util_blitter_clear(struct blitter_context
*blitter
,
642 unsigned width
, unsigned height
,
644 unsigned clear_buffers
,
646 double depth
, unsigned stencil
)
648 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
649 struct pipe_context
*pipe
= ctx
->base
.pipe
;
650 struct pipe_stencil_ref sr
= { { 0 } };
652 assert(num_cbufs
<= PIPE_MAX_COLOR_BUFS
);
654 blitter_check_saved_CSOs(ctx
);
657 if (clear_buffers
& PIPE_CLEAR_COLOR
)
658 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
660 pipe
->bind_blend_state(pipe
, ctx
->blend_keep_color
);
662 if ((clear_buffers
& PIPE_CLEAR_DEPTHSTENCIL
) == PIPE_CLEAR_DEPTHSTENCIL
) {
663 sr
.ref_value
[0] = stencil
& 0xff;
664 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_write_depth_stencil
);
665 pipe
->set_stencil_ref(pipe
, &sr
);
667 else if (clear_buffers
& PIPE_CLEAR_DEPTH
) {
668 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_write_depth_keep_stencil
);
670 else if (clear_buffers
& PIPE_CLEAR_STENCIL
) {
671 sr
.ref_value
[0] = stencil
& 0xff;
672 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_write_stencil
);
673 pipe
->set_stencil_ref(pipe
, &sr
);
676 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
678 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
679 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
680 pipe
->bind_fs_state(pipe
, blitter_get_fs_col(ctx
, num_cbufs
));
681 pipe
->bind_vs_state(pipe
, ctx
->vs_col
);
683 blitter_set_dst_dimensions(ctx
, width
, height
);
684 blitter
->draw_rectangle(blitter
, 0, 0, width
, height
, depth
,
685 UTIL_BLITTER_ATTRIB_COLOR
, rgba
);
686 blitter_restore_CSOs(ctx
);
690 boolean
is_overlap(unsigned sx1
, unsigned sx2
, unsigned sy1
, unsigned sy2
,
691 unsigned dx1
, unsigned dx2
, unsigned dy1
, unsigned dy2
)
693 return sx1
< dx2
&& sx2
> dx1
&& sy1
< dy2
&& sy2
> dy1
;
696 void util_blitter_copy_region(struct blitter_context
*blitter
,
697 struct pipe_resource
*dst
,
698 struct pipe_subresource subdst
,
699 unsigned dstx
, unsigned dsty
, unsigned dstz
,
700 struct pipe_resource
*src
,
701 struct pipe_subresource subsrc
,
702 unsigned srcx
, unsigned srcy
, unsigned srcz
,
703 unsigned width
, unsigned height
,
704 boolean ignore_stencil
)
706 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
707 struct pipe_context
*pipe
= ctx
->base
.pipe
;
708 struct pipe_screen
*screen
= pipe
->screen
;
709 struct pipe_surface
*dstsurf
;
710 struct pipe_framebuffer_state fb_state
;
711 struct pipe_sampler_view viewTempl
, *view
;
713 boolean is_stencil
, is_depth
;
715 /* Give up if textures are not set. */
722 assert(!is_overlap(srcx
, srcx
+ width
, srcy
, srcy
+ height
,
723 dstx
, dstx
+ width
, dsty
, dsty
+ height
));
725 assert(dst
->format
== src
->format
);
727 assert(src
->target
< PIPE_MAX_TEXTURE_TYPES
);
729 /* Is this a ZS format? */
730 is_depth
= util_format_get_component_bits(src
->format
, UTIL_FORMAT_COLORSPACE_ZS
, 0) != 0;
731 is_stencil
= util_format_get_component_bits(src
->format
, UTIL_FORMAT_COLORSPACE_ZS
, 1) != 0;
733 if (is_depth
|| is_stencil
)
734 bind
= PIPE_BIND_DEPTH_STENCIL
;
736 bind
= PIPE_BIND_RENDER_TARGET
;
738 /* Check if we can sample from and render to the surfaces. */
739 /* (assuming copying a stencil buffer is not possible) */
740 if ((!ignore_stencil
&& is_stencil
) ||
741 !screen
->is_format_supported(screen
, dst
->format
, dst
->target
,
742 dst
->nr_samples
, bind
, 0) ||
743 !screen
->is_format_supported(screen
, src
->format
, src
->target
,
744 src
->nr_samples
, PIPE_BIND_SAMPLER_VIEW
, 0)) {
745 util_resource_copy_region(pipe
, dst
, subdst
, dstx
, dsty
, dstz
,
746 src
, subsrc
, srcx
, srcy
, srcz
, width
, height
);
751 dstsurf
= screen
->get_tex_surface(screen
, dst
,
752 subdst
.face
, subdst
.level
, dstz
,
755 /* Check whether the states are properly saved. */
756 blitter_check_saved_CSOs(ctx
);
757 assert(blitter
->saved_fb_state
.nr_cbufs
!= ~0);
758 assert(blitter
->saved_num_sampler_views
!= ~0);
759 assert(blitter
->saved_num_sampler_states
!= ~0);
761 /* Initialize framebuffer state. */
762 fb_state
.width
= dstsurf
->width
;
763 fb_state
.height
= dstsurf
->height
;
766 pipe
->bind_blend_state(pipe
, ctx
->blend_keep_color
);
767 pipe
->bind_depth_stencil_alpha_state(pipe
,
768 ctx
->dsa_write_depth_keep_stencil
);
769 pipe
->bind_fs_state(pipe
,
770 blitter_get_fs_texfetch_depth(ctx
, src
->target
));
772 fb_state
.nr_cbufs
= 0;
773 fb_state
.zsbuf
= dstsurf
;
775 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
776 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
777 pipe
->bind_fs_state(pipe
,
778 blitter_get_fs_texfetch_col(ctx
, src
->target
));
780 fb_state
.nr_cbufs
= 1;
781 fb_state
.cbufs
[0] = dstsurf
;
785 /* Initialize sampler view. */
786 u_sampler_view_default_template(&viewTempl
, src
, src
->format
);
787 view
= pipe
->create_sampler_view(pipe
, src
, &viewTempl
);
789 /* Set rasterizer state, shaders, and textures. */
790 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
791 pipe
->bind_vs_state(pipe
, ctx
->vs_tex
);
792 pipe
->bind_fragment_sampler_states(pipe
, 1,
793 blitter_get_sampler_state(ctx
, subsrc
.level
));
794 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
795 pipe
->set_fragment_sampler_views(pipe
, 1, &view
);
796 pipe
->set_framebuffer_state(pipe
, &fb_state
);
798 blitter_set_dst_dimensions(ctx
, dstsurf
->width
, dstsurf
->height
);
800 switch (src
->target
) {
801 /* Draw the quad with the draw_rectangle callback. */
802 case PIPE_TEXTURE_1D
:
803 case PIPE_TEXTURE_2D
:
805 /* Set texture coordinates. */
807 get_normalized_texcoords(src
, subsrc
, srcx
, srcy
,
808 srcx
+width
, srcy
+height
, coord
);
811 blitter
->draw_rectangle(blitter
, dstx
, dsty
, dstx
+width
, dsty
+height
, 0,
812 UTIL_BLITTER_ATTRIB_TEXCOORD
, coord
);
816 /* Draw the quad with the generic codepath. */
817 case PIPE_TEXTURE_3D
:
818 case PIPE_TEXTURE_CUBE
:
819 /* Set texture coordinates. */
820 if (src
->target
== PIPE_TEXTURE_3D
)
821 blitter_set_texcoords_3d(ctx
, src
, subsrc
, srcz
,
822 srcx
, srcy
, srcx
+width
, srcy
+height
);
824 blitter_set_texcoords_cube(ctx
, src
, subsrc
,
825 srcx
, srcy
, srcx
+width
, srcy
+height
);
828 blitter_set_rectangle(ctx
, dstx
, dsty
, dstx
+width
, dsty
+height
, 0);
829 blitter_draw_quad(ctx
);
837 blitter_restore_CSOs(ctx
);
839 pipe_surface_reference(&dstsurf
, NULL
);
840 pipe_sampler_view_reference(&view
, NULL
);
843 /* Clear a region of a color surface to a constant value. */
844 void util_blitter_clear_render_target(struct blitter_context
*blitter
,
845 struct pipe_surface
*dstsurf
,
847 unsigned dstx
, unsigned dsty
,
848 unsigned width
, unsigned height
)
850 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
851 struct pipe_context
*pipe
= ctx
->base
.pipe
;
852 struct pipe_framebuffer_state fb_state
;
854 assert(dstsurf
->texture
);
855 if (!dstsurf
->texture
)
858 /* check the saved state */
859 blitter_check_saved_CSOs(ctx
);
860 assert(blitter
->saved_fb_state
.nr_cbufs
!= ~0);
863 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
864 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
865 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
866 pipe
->bind_fs_state(pipe
, blitter_get_fs_col(ctx
, 1));
867 pipe
->bind_vs_state(pipe
, ctx
->vs_col
);
868 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
870 /* set a framebuffer state */
871 fb_state
.width
= dstsurf
->width
;
872 fb_state
.height
= dstsurf
->height
;
873 fb_state
.nr_cbufs
= 1;
874 fb_state
.cbufs
[0] = dstsurf
;
876 pipe
->set_framebuffer_state(pipe
, &fb_state
);
878 blitter_set_dst_dimensions(ctx
, dstsurf
->width
, dstsurf
->height
);
879 blitter
->draw_rectangle(blitter
, dstx
, dsty
, dstx
+width
, dsty
+height
, 0,
880 UTIL_BLITTER_ATTRIB_COLOR
, rgba
);
881 blitter_restore_CSOs(ctx
);
884 /* Clear a region of a depth stencil surface. */
885 void util_blitter_clear_depth_stencil(struct blitter_context
*blitter
,
886 struct pipe_surface
*dstsurf
,
887 unsigned clear_flags
,
890 unsigned dstx
, unsigned dsty
,
891 unsigned width
, unsigned height
)
893 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
894 struct pipe_context
*pipe
= ctx
->base
.pipe
;
895 struct pipe_framebuffer_state fb_state
;
896 struct pipe_stencil_ref sr
= { { 0 } };
898 assert(dstsurf
->texture
);
899 if (!dstsurf
->texture
)
902 /* check the saved state */
903 blitter_check_saved_CSOs(ctx
);
904 assert(blitter
->saved_fb_state
.nr_cbufs
!= ~0);
907 pipe
->bind_blend_state(pipe
, ctx
->blend_keep_color
);
908 if ((clear_flags
& PIPE_CLEAR_DEPTHSTENCIL
) == PIPE_CLEAR_DEPTHSTENCIL
) {
909 sr
.ref_value
[0] = stencil
& 0xff;
910 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_write_depth_stencil
);
911 pipe
->set_stencil_ref(pipe
, &sr
);
913 else if (clear_flags
& PIPE_CLEAR_DEPTH
) {
914 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_write_depth_keep_stencil
);
916 else if (clear_flags
& PIPE_CLEAR_STENCIL
) {
917 sr
.ref_value
[0] = stencil
& 0xff;
918 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_write_stencil
);
919 pipe
->set_stencil_ref(pipe
, &sr
);
922 /* hmm that should be illegal probably, or make it a no-op somewhere */
923 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
925 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
926 pipe
->bind_fs_state(pipe
, blitter_get_fs_col(ctx
, 0));
927 pipe
->bind_vs_state(pipe
, ctx
->vs_col
);
928 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
930 /* set a framebuffer state */
931 fb_state
.width
= dstsurf
->width
;
932 fb_state
.height
= dstsurf
->height
;
933 fb_state
.nr_cbufs
= 0;
934 fb_state
.cbufs
[0] = 0;
935 fb_state
.zsbuf
= dstsurf
;
936 pipe
->set_framebuffer_state(pipe
, &fb_state
);
938 blitter_set_dst_dimensions(ctx
, dstsurf
->width
, dstsurf
->height
);
939 blitter
->draw_rectangle(blitter
, dstx
, dsty
, dstx
+width
, dsty
+height
, depth
,
940 UTIL_BLITTER_ATTRIB_NONE
, NULL
);
941 blitter_restore_CSOs(ctx
);