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, surface_copy,
30 * and surface_fill 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_pack_color.h"
47 #include "util/u_rect.h"
48 #include "util/u_sampler.h"
49 #include "util/u_simple_shaders.h"
50 #include "util/u_texture.h"
52 #define INVALID_PTR ((void*)~0)
54 struct blitter_context_priv
56 struct blitter_context blitter
;
58 struct pipe_context
*pipe
; /**< pipe context */
59 struct pipe_resource
*vbuf
; /**< quad */
61 float vertices
[4][2][4]; /**< {pos, color} or {pos, texcoord} */
63 /* Templates for various state objects. */
64 struct pipe_sampler_state template_sampler_state
;
66 /* Constant state objects. */
68 void *vs_col
; /**< Vertex shader which passes {pos, color} to the output */
69 void *vs_tex
; /**< Vertex shader which passes {pos, texcoord} to the output.*/
71 /* Fragment shaders. */
72 /* FS which outputs a color to multiple color buffers. */
73 void *fs_col
[PIPE_MAX_COLOR_BUFS
];
75 /* FS which outputs a color from a texture,
76 where the index is PIPE_TEXTURE_* to be sampled. */
77 void *fs_texfetch_col
[PIPE_MAX_TEXTURE_TYPES
];
79 /* FS which outputs a depth from a texture,
80 where the index is PIPE_TEXTURE_* to be sampled. */
81 void *fs_texfetch_depth
[PIPE_MAX_TEXTURE_TYPES
];
84 void *blend_write_color
; /**< blend state with writemask of RGBA */
85 void *blend_keep_color
; /**< blend state with writemask of 0 */
87 /* Depth stencil alpha state. */
88 void *dsa_write_depth_stencil
;
89 void *dsa_write_depth_keep_stencil
;
90 void *dsa_keep_depth_stencil
;
94 /* Sampler state for clamping to a miplevel. */
95 void *sampler_state
[PIPE_MAX_TEXTURE_LEVELS
];
97 /* Rasterizer state. */
100 struct pipe_sampler_view
*sampler_view
;
102 /* Viewport state. */
103 struct pipe_viewport_state viewport
;
106 struct pipe_clip_state clip
;
109 struct blitter_context
*util_blitter_create(struct pipe_context
*pipe
)
111 struct blitter_context_priv
*ctx
;
112 struct pipe_blend_state blend
;
113 struct pipe_depth_stencil_alpha_state dsa
;
114 struct pipe_rasterizer_state rs_state
;
115 struct pipe_sampler_state
*sampler_state
;
116 struct pipe_vertex_element velem
[2];
119 ctx
= CALLOC_STRUCT(blitter_context_priv
);
125 /* init state objects for them to be considered invalid */
126 ctx
->blitter
.saved_blend_state
= INVALID_PTR
;
127 ctx
->blitter
.saved_dsa_state
= INVALID_PTR
;
128 ctx
->blitter
.saved_rs_state
= INVALID_PTR
;
129 ctx
->blitter
.saved_fs
= INVALID_PTR
;
130 ctx
->blitter
.saved_vs
= INVALID_PTR
;
131 ctx
->blitter
.saved_velem_state
= INVALID_PTR
;
132 ctx
->blitter
.saved_fb_state
.nr_cbufs
= ~0;
133 ctx
->blitter
.saved_num_sampler_views
= ~0;
134 ctx
->blitter
.saved_num_sampler_states
= ~0;
135 ctx
->blitter
.saved_num_vertex_buffers
= ~0;
137 /* blend state objects */
138 memset(&blend
, 0, sizeof(blend
));
139 ctx
->blend_keep_color
= pipe
->create_blend_state(pipe
, &blend
);
141 blend
.rt
[0].colormask
= PIPE_MASK_RGBA
;
142 ctx
->blend_write_color
= pipe
->create_blend_state(pipe
, &blend
);
144 /* depth stencil alpha state objects */
145 memset(&dsa
, 0, sizeof(dsa
));
146 ctx
->dsa_keep_depth_stencil
=
147 pipe
->create_depth_stencil_alpha_state(pipe
, &dsa
);
149 dsa
.depth
.enabled
= 1;
150 dsa
.depth
.writemask
= 1;
151 dsa
.depth
.func
= PIPE_FUNC_ALWAYS
;
152 ctx
->dsa_write_depth_keep_stencil
=
153 pipe
->create_depth_stencil_alpha_state(pipe
, &dsa
);
155 dsa
.stencil
[0].enabled
= 1;
156 dsa
.stencil
[0].func
= PIPE_FUNC_ALWAYS
;
157 dsa
.stencil
[0].fail_op
= PIPE_STENCIL_OP_REPLACE
;
158 dsa
.stencil
[0].zpass_op
= PIPE_STENCIL_OP_REPLACE
;
159 dsa
.stencil
[0].zfail_op
= PIPE_STENCIL_OP_REPLACE
;
160 dsa
.stencil
[0].valuemask
= 0xff;
161 dsa
.stencil
[0].writemask
= 0xff;
162 ctx
->dsa_write_depth_stencil
=
163 pipe
->create_depth_stencil_alpha_state(pipe
, &dsa
);
164 /* The DSA state objects which write depth and stencil are created
168 sampler_state
= &ctx
->template_sampler_state
;
169 sampler_state
->wrap_s
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
170 sampler_state
->wrap_t
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
171 sampler_state
->wrap_r
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
172 sampler_state
->normalized_coords
= TRUE
;
173 /* The sampler state objects which sample from a specified mipmap level
174 * are created on-demand. */
176 /* rasterizer state */
177 memset(&rs_state
, 0, sizeof(rs_state
));
178 rs_state
.front_winding
= PIPE_WINDING_CW
;
179 rs_state
.cull_mode
= PIPE_WINDING_NONE
;
180 rs_state
.gl_rasterization_rules
= 1;
181 rs_state
.flatshade
= 1;
182 ctx
->rs_state
= pipe
->create_rasterizer_state(pipe
, &rs_state
);
184 /* vertex elements state */
185 memset(&velem
[0], 0, sizeof(velem
[0]) * 2);
186 for (i
= 0; i
< 2; i
++) {
187 velem
[i
].src_offset
= i
* 4 * sizeof(float);
188 velem
[i
].instance_divisor
= 0;
189 velem
[i
].vertex_buffer_index
= 0;
190 velem
[i
].src_format
= PIPE_FORMAT_R32G32B32A32_FLOAT
;
192 ctx
->velem_state
= pipe
->create_vertex_elements_state(pipe
, 2, &velem
[0]);
194 /* fragment shaders are created on-demand */
198 const uint semantic_names
[] = { TGSI_SEMANTIC_POSITION
,
199 TGSI_SEMANTIC_COLOR
};
200 const uint semantic_indices
[] = { 0, 0 };
202 util_make_vertex_passthrough_shader(pipe
, 2, semantic_names
,
206 const uint semantic_names
[] = { TGSI_SEMANTIC_POSITION
,
207 TGSI_SEMANTIC_GENERIC
};
208 const uint semantic_indices
[] = { 0, 0 };
210 util_make_vertex_passthrough_shader(pipe
, 2, semantic_names
,
214 /* set invariant vertex coordinates */
215 for (i
= 0; i
< 4; i
++)
216 ctx
->vertices
[i
][0][3] = 1; /*v.w*/
218 /* create the vertex buffer */
219 ctx
->vbuf
= pipe_buffer_create(ctx
->pipe
->screen
,
220 PIPE_BIND_VERTEX_BUFFER
,
221 sizeof(ctx
->vertices
));
223 return &ctx
->blitter
;
226 void util_blitter_destroy(struct blitter_context
*blitter
)
228 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
229 struct pipe_context
*pipe
= ctx
->pipe
;
232 pipe
->delete_blend_state(pipe
, ctx
->blend_write_color
);
233 pipe
->delete_blend_state(pipe
, ctx
->blend_keep_color
);
234 pipe
->delete_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
235 pipe
->delete_depth_stencil_alpha_state(pipe
,
236 ctx
->dsa_write_depth_keep_stencil
);
237 pipe
->delete_depth_stencil_alpha_state(pipe
, ctx
->dsa_write_depth_stencil
);
239 pipe
->delete_rasterizer_state(pipe
, ctx
->rs_state
);
240 pipe
->delete_vs_state(pipe
, ctx
->vs_col
);
241 pipe
->delete_vs_state(pipe
, ctx
->vs_tex
);
242 pipe
->delete_vertex_elements_state(pipe
, ctx
->velem_state
);
244 for (i
= 0; i
< PIPE_MAX_TEXTURE_TYPES
; i
++) {
245 if (ctx
->fs_texfetch_col
[i
])
246 pipe
->delete_fs_state(pipe
, ctx
->fs_texfetch_col
[i
]);
247 if (ctx
->fs_texfetch_depth
[i
])
248 pipe
->delete_fs_state(pipe
, ctx
->fs_texfetch_depth
[i
]);
251 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
&& ctx
->fs_col
[i
]; i
++)
253 pipe
->delete_fs_state(pipe
, ctx
->fs_col
[i
]);
255 for (i
= 0; i
< PIPE_MAX_TEXTURE_LEVELS
; i
++)
256 if (ctx
->sampler_state
[i
])
257 pipe
->delete_sampler_state(pipe
, ctx
->sampler_state
[i
]);
259 if (ctx
->sampler_view
) {
260 pipe_sampler_view_reference(&ctx
->sampler_view
, NULL
);
263 pipe_resource_reference(&ctx
->vbuf
, NULL
);
267 static void blitter_check_saved_CSOs(struct blitter_context_priv
*ctx
)
269 /* make sure these CSOs have been saved */
270 assert(ctx
->blitter
.saved_blend_state
!= INVALID_PTR
&&
271 ctx
->blitter
.saved_dsa_state
!= INVALID_PTR
&&
272 ctx
->blitter
.saved_rs_state
!= INVALID_PTR
&&
273 ctx
->blitter
.saved_fs
!= INVALID_PTR
&&
274 ctx
->blitter
.saved_vs
!= INVALID_PTR
&&
275 ctx
->blitter
.saved_velem_state
!= INVALID_PTR
);
278 static void blitter_restore_CSOs(struct blitter_context_priv
*ctx
)
280 struct pipe_context
*pipe
= ctx
->pipe
;
282 /* restore the state objects which are always required to be saved */
283 pipe
->bind_blend_state(pipe
, ctx
->blitter
.saved_blend_state
);
284 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->blitter
.saved_dsa_state
);
285 pipe
->bind_rasterizer_state(pipe
, ctx
->blitter
.saved_rs_state
);
286 pipe
->bind_fs_state(pipe
, ctx
->blitter
.saved_fs
);
287 pipe
->bind_vs_state(pipe
, ctx
->blitter
.saved_vs
);
288 pipe
->bind_vertex_elements_state(pipe
, ctx
->blitter
.saved_velem_state
);
290 ctx
->blitter
.saved_blend_state
= INVALID_PTR
;
291 ctx
->blitter
.saved_dsa_state
= INVALID_PTR
;
292 ctx
->blitter
.saved_rs_state
= INVALID_PTR
;
293 ctx
->blitter
.saved_fs
= INVALID_PTR
;
294 ctx
->blitter
.saved_vs
= INVALID_PTR
;
295 ctx
->blitter
.saved_velem_state
= INVALID_PTR
;
297 pipe
->set_stencil_ref(pipe
, &ctx
->blitter
.saved_stencil_ref
);
299 pipe
->set_viewport_state(pipe
, &ctx
->blitter
.saved_viewport
);
300 pipe
->set_clip_state(pipe
, &ctx
->blitter
.saved_clip
);
302 /* restore the state objects which are required to be saved before copy/fill
304 if (ctx
->blitter
.saved_fb_state
.nr_cbufs
!= ~0) {
305 pipe
->set_framebuffer_state(pipe
, &ctx
->blitter
.saved_fb_state
);
306 ctx
->blitter
.saved_fb_state
.nr_cbufs
= ~0;
309 if (ctx
->blitter
.saved_num_sampler_states
!= ~0) {
310 pipe
->bind_fragment_sampler_states(pipe
,
311 ctx
->blitter
.saved_num_sampler_states
,
312 ctx
->blitter
.saved_sampler_states
);
313 ctx
->blitter
.saved_num_sampler_states
= ~0;
316 if (ctx
->blitter
.saved_num_sampler_views
!= ~0) {
317 pipe
->set_fragment_sampler_views(pipe
,
318 ctx
->blitter
.saved_num_sampler_views
,
319 ctx
->blitter
.saved_sampler_views
);
320 ctx
->blitter
.saved_num_sampler_views
= ~0;
323 if (ctx
->blitter
.saved_num_vertex_buffers
!= ~0) {
324 pipe
->set_vertex_buffers(pipe
,
325 ctx
->blitter
.saved_num_vertex_buffers
,
326 ctx
->blitter
.saved_vertex_buffers
);
327 ctx
->blitter
.saved_num_vertex_buffers
= ~0;
331 static void blitter_set_rectangle(struct blitter_context_priv
*ctx
,
332 unsigned x1
, unsigned y1
,
333 unsigned x2
, unsigned y2
,
334 unsigned width
, unsigned height
,
339 /* set vertex positions */
340 ctx
->vertices
[0][0][0] = (float)x1
/ width
* 2.0f
- 1.0f
; /*v0.x*/
341 ctx
->vertices
[0][0][1] = (float)y1
/ height
* 2.0f
- 1.0f
; /*v0.y*/
343 ctx
->vertices
[1][0][0] = (float)x2
/ width
* 2.0f
- 1.0f
; /*v1.x*/
344 ctx
->vertices
[1][0][1] = (float)y1
/ height
* 2.0f
- 1.0f
; /*v1.y*/
346 ctx
->vertices
[2][0][0] = (float)x2
/ width
* 2.0f
- 1.0f
; /*v2.x*/
347 ctx
->vertices
[2][0][1] = (float)y2
/ height
* 2.0f
- 1.0f
; /*v2.y*/
349 ctx
->vertices
[3][0][0] = (float)x1
/ width
* 2.0f
- 1.0f
; /*v3.x*/
350 ctx
->vertices
[3][0][1] = (float)y2
/ height
* 2.0f
- 1.0f
; /*v3.y*/
352 for (i
= 0; i
< 4; i
++)
353 ctx
->vertices
[i
][0][2] = depth
; /*z*/
356 ctx
->viewport
.scale
[0] = 0.5f
* width
;
357 ctx
->viewport
.scale
[1] = 0.5f
* height
;
358 ctx
->viewport
.scale
[2] = 1.0f
;
359 ctx
->viewport
.scale
[3] = 1.0f
;
360 ctx
->viewport
.translate
[0] = 0.5f
* width
;
361 ctx
->viewport
.translate
[1] = 0.5f
* height
;
362 ctx
->viewport
.translate
[2] = 0.0f
;
363 ctx
->viewport
.translate
[3] = 0.0f
;
364 ctx
->pipe
->set_viewport_state(ctx
->pipe
, &ctx
->viewport
);
367 ctx
->pipe
->set_clip_state(ctx
->pipe
, &ctx
->clip
);
370 static void blitter_set_clear_color(struct blitter_context_priv
*ctx
,
375 for (i
= 0; i
< 4; i
++) {
376 ctx
->vertices
[i
][1][0] = rgba
[0];
377 ctx
->vertices
[i
][1][1] = rgba
[1];
378 ctx
->vertices
[i
][1][2] = rgba
[2];
379 ctx
->vertices
[i
][1][3] = rgba
[3];
383 static void blitter_set_texcoords_2d(struct blitter_context_priv
*ctx
,
384 struct pipe_surface
*surf
,
385 unsigned x1
, unsigned y1
,
386 unsigned x2
, unsigned y2
)
389 float s1
= x1
/ (float)surf
->width
;
390 float t1
= y1
/ (float)surf
->height
;
391 float s2
= x2
/ (float)surf
->width
;
392 float t2
= y2
/ (float)surf
->height
;
394 ctx
->vertices
[0][1][0] = s1
; /*t0.s*/
395 ctx
->vertices
[0][1][1] = t1
; /*t0.t*/
397 ctx
->vertices
[1][1][0] = s2
; /*t1.s*/
398 ctx
->vertices
[1][1][1] = t1
; /*t1.t*/
400 ctx
->vertices
[2][1][0] = s2
; /*t2.s*/
401 ctx
->vertices
[2][1][1] = t2
; /*t2.t*/
403 ctx
->vertices
[3][1][0] = s1
; /*t3.s*/
404 ctx
->vertices
[3][1][1] = t2
; /*t3.t*/
406 for (i
= 0; i
< 4; i
++) {
407 ctx
->vertices
[i
][1][2] = 0; /*r*/
408 ctx
->vertices
[i
][1][3] = 1; /*q*/
412 static void blitter_set_texcoords_3d(struct blitter_context_priv
*ctx
,
413 struct pipe_surface
*surf
,
414 unsigned x1
, unsigned y1
,
415 unsigned x2
, unsigned y2
)
418 float depth
= u_minify(surf
->texture
->depth0
, surf
->level
);
419 float r
= surf
->zslice
/ depth
;
421 blitter_set_texcoords_2d(ctx
, surf
, x1
, y1
, x2
, y2
);
423 for (i
= 0; i
< 4; i
++)
424 ctx
->vertices
[i
][1][2] = r
; /*r*/
427 static void blitter_set_texcoords_cube(struct blitter_context_priv
*ctx
,
428 struct pipe_surface
*surf
,
429 unsigned x1
, unsigned y1
,
430 unsigned x2
, unsigned y2
)
433 float s1
= x1
/ (float)surf
->width
;
434 float t1
= y1
/ (float)surf
->height
;
435 float s2
= x2
/ (float)surf
->width
;
436 float t2
= y2
/ (float)surf
->height
;
448 util_map_texcoords2d_onto_cubemap(surf
->face
,
449 /* pointer, stride in floats */
451 &ctx
->vertices
[0][1][0], 8);
453 for (i
= 0; i
< 4; i
++)
454 ctx
->vertices
[i
][1][3] = 1; /*q*/
457 static void blitter_draw_quad(struct blitter_context_priv
*ctx
)
459 struct pipe_context
*pipe
= ctx
->pipe
;
461 /* write vertices and draw them */
462 pipe_buffer_write(pipe
, ctx
->vbuf
,
463 0, sizeof(ctx
->vertices
), ctx
->vertices
);
465 util_draw_vertex_buffer(pipe
, ctx
->vbuf
, 0, PIPE_PRIM_TRIANGLE_FAN
,
467 2); /* attribs/vert */
471 void **blitter_get_sampler_state(struct blitter_context_priv
*ctx
,
474 struct pipe_context
*pipe
= ctx
->pipe
;
475 struct pipe_sampler_state
*sampler_state
= &ctx
->template_sampler_state
;
477 assert(miplevel
< PIPE_MAX_TEXTURE_LEVELS
);
479 /* Create the sampler state on-demand. */
480 if (!ctx
->sampler_state
[miplevel
]) {
481 sampler_state
->lod_bias
= miplevel
;
482 sampler_state
->min_lod
= miplevel
;
483 sampler_state
->max_lod
= miplevel
;
485 ctx
->sampler_state
[miplevel
] = pipe
->create_sampler_state(pipe
,
489 /* Return void** so that it can be passed to bind_fragment_sampler_states
491 return &ctx
->sampler_state
[miplevel
];
495 void *blitter_get_fs_col(struct blitter_context_priv
*ctx
, unsigned num_cbufs
)
497 struct pipe_context
*pipe
= ctx
->pipe
;
498 unsigned index
= num_cbufs
? num_cbufs
- 1 : 0;
500 assert(num_cbufs
<= PIPE_MAX_COLOR_BUFS
);
502 if (!ctx
->fs_col
[index
])
504 util_make_fragment_clonecolor_shader(pipe
, num_cbufs
);
506 return ctx
->fs_col
[index
];
510 void *blitter_get_fs_texfetch_col(struct blitter_context_priv
*ctx
,
513 struct pipe_context
*pipe
= ctx
->pipe
;
515 assert(tex_target
< PIPE_MAX_TEXTURE_TYPES
);
517 /* Create the fragment shader on-demand. */
518 if (!ctx
->fs_texfetch_col
[tex_target
]) {
519 switch (tex_target
) {
520 case PIPE_TEXTURE_1D
:
521 ctx
->fs_texfetch_col
[PIPE_TEXTURE_1D
] =
522 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_1D
);
524 case PIPE_TEXTURE_2D
:
525 ctx
->fs_texfetch_col
[PIPE_TEXTURE_2D
] =
526 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_2D
);
528 case PIPE_TEXTURE_3D
:
529 ctx
->fs_texfetch_col
[PIPE_TEXTURE_3D
] =
530 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_3D
);
532 case PIPE_TEXTURE_CUBE
:
533 ctx
->fs_texfetch_col
[PIPE_TEXTURE_CUBE
] =
534 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_CUBE
);
540 return ctx
->fs_texfetch_col
[tex_target
];
544 void *blitter_get_fs_texfetch_depth(struct blitter_context_priv
*ctx
,
547 struct pipe_context
*pipe
= ctx
->pipe
;
549 assert(tex_target
< PIPE_MAX_TEXTURE_TYPES
);
551 /* Create the fragment shader on-demand. */
552 if (!ctx
->fs_texfetch_depth
[tex_target
]) {
553 switch (tex_target
) {
554 case PIPE_TEXTURE_1D
:
555 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_1D
] =
556 util_make_fragment_tex_shader_writedepth(pipe
, TGSI_TEXTURE_1D
);
558 case PIPE_TEXTURE_2D
:
559 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_2D
] =
560 util_make_fragment_tex_shader_writedepth(pipe
, TGSI_TEXTURE_2D
);
562 case PIPE_TEXTURE_3D
:
563 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_3D
] =
564 util_make_fragment_tex_shader_writedepth(pipe
, TGSI_TEXTURE_3D
);
566 case PIPE_TEXTURE_CUBE
:
567 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_CUBE
] =
568 util_make_fragment_tex_shader_writedepth(pipe
,TGSI_TEXTURE_CUBE
);
574 return ctx
->fs_texfetch_depth
[tex_target
];
577 void util_blitter_clear(struct blitter_context
*blitter
,
578 unsigned width
, unsigned height
,
580 unsigned clear_buffers
,
582 double depth
, unsigned stencil
)
584 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
585 struct pipe_context
*pipe
= ctx
->pipe
;
586 struct pipe_stencil_ref sr
= { { 0 } };
588 assert(num_cbufs
<= PIPE_MAX_COLOR_BUFS
);
590 blitter_check_saved_CSOs(ctx
);
593 if (clear_buffers
& PIPE_CLEAR_COLOR
)
594 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
596 pipe
->bind_blend_state(pipe
, ctx
->blend_keep_color
);
598 if (clear_buffers
& PIPE_CLEAR_DEPTHSTENCIL
) {
599 sr
.ref_value
[0] = stencil
& 0xff;
600 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_write_depth_stencil
);
601 pipe
->set_stencil_ref(pipe
, &sr
);
604 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
606 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
607 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
608 pipe
->bind_fs_state(pipe
, blitter_get_fs_col(ctx
, num_cbufs
));
609 pipe
->bind_vs_state(pipe
, ctx
->vs_col
);
611 blitter_set_clear_color(ctx
, rgba
);
612 blitter_set_rectangle(ctx
, 0, 0, width
, height
, width
, height
, depth
);
613 blitter_draw_quad(ctx
);
614 blitter_restore_CSOs(ctx
);
618 is_overlap(unsigned sx1
, unsigned sx2
, unsigned sy1
, unsigned sy2
,
619 unsigned dx1
, unsigned dx2
, unsigned dy1
, unsigned dy2
)
621 if (sx1
>= dx2
|| sx2
<= dx1
|| sy1
>= dy2
|| sy2
<= dy1
) {
628 static void util_blitter_do_copy(struct blitter_context
*blitter
,
629 struct pipe_surface
*dst
,
630 unsigned dstx
, unsigned dsty
,
631 struct pipe_surface
*src
,
632 unsigned srcx
, unsigned srcy
,
633 unsigned width
, unsigned height
,
636 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
637 struct pipe_context
*pipe
= ctx
->pipe
;
638 struct pipe_framebuffer_state fb_state
;
639 struct pipe_sampler_view viewTempl
, *view
;
641 assert(blitter
->saved_fb_state
.nr_cbufs
!= ~0);
642 assert(blitter
->saved_num_sampler_views
!= ~0);
643 assert(blitter
->saved_num_sampler_states
!= ~0);
644 assert(src
->texture
->target
< PIPE_MAX_TEXTURE_TYPES
);
647 fb_state
.width
= dst
->width
;
648 fb_state
.height
= dst
->height
;
651 pipe
->bind_blend_state(pipe
, ctx
->blend_keep_color
);
652 pipe
->bind_depth_stencil_alpha_state(pipe
,
653 ctx
->dsa_write_depth_keep_stencil
);
654 pipe
->bind_fs_state(pipe
,
655 blitter_get_fs_texfetch_depth(ctx
, src
->texture
->target
));
657 fb_state
.nr_cbufs
= 0;
658 fb_state
.zsbuf
= dst
;
660 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
661 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
662 pipe
->bind_fs_state(pipe
,
663 blitter_get_fs_texfetch_col(ctx
, src
->texture
->target
));
665 fb_state
.nr_cbufs
= 1;
666 fb_state
.cbufs
[0] = dst
;
670 u_sampler_view_default_template(&viewTempl
,
672 src
->texture
->format
);
673 view
= pipe
->create_sampler_view(pipe
,
677 if (ctx
->sampler_view
) {
678 pipe_sampler_view_reference(&ctx
->sampler_view
, NULL
);
680 ctx
->sampler_view
= view
;
682 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
683 pipe
->bind_vs_state(pipe
, ctx
->vs_tex
);
684 pipe
->bind_fragment_sampler_states(pipe
, 1,
685 blitter_get_sampler_state(ctx
, src
->level
));
686 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
687 pipe
->set_fragment_sampler_views(pipe
, 1, &view
);
688 pipe
->set_framebuffer_state(pipe
, &fb_state
);
690 /* set texture coordinates */
691 switch (src
->texture
->target
) {
692 case PIPE_TEXTURE_1D
:
693 case PIPE_TEXTURE_2D
:
694 blitter_set_texcoords_2d(ctx
, src
, srcx
, srcy
,
695 srcx
+width
, srcy
+height
);
697 case PIPE_TEXTURE_3D
:
698 blitter_set_texcoords_3d(ctx
, src
, srcx
, srcy
,
699 srcx
+width
, srcy
+height
);
701 case PIPE_TEXTURE_CUBE
:
702 blitter_set_texcoords_cube(ctx
, src
, srcx
, srcy
,
703 srcx
+width
, srcy
+height
);
709 blitter_set_rectangle(ctx
, dstx
, dsty
, dstx
+width
, dsty
+height
, dst
->width
, dst
->height
, 0);
710 blitter_draw_quad(ctx
);
714 static void util_blitter_overlap_copy(struct blitter_context
*blitter
,
715 struct pipe_surface
*dst
,
716 unsigned dstx
, unsigned dsty
,
717 struct pipe_surface
*src
,
718 unsigned srcx
, unsigned srcy
,
719 unsigned width
, unsigned height
)
721 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
722 struct pipe_context
*pipe
= ctx
->pipe
;
723 struct pipe_screen
*screen
= pipe
->screen
;
725 struct pipe_resource texTemp
;
726 struct pipe_resource
*texture
;
727 struct pipe_surface
*tex_surf
;
729 /* check whether the states are properly saved */
730 blitter_check_saved_CSOs(ctx
);
732 memset(&texTemp
, 0, sizeof(texTemp
));
733 texTemp
.target
= PIPE_TEXTURE_2D
;
734 texTemp
.format
= dst
->texture
->format
; /* XXX verify supported by driver! */
735 texTemp
.last_level
= 0;
736 texTemp
.width0
= width
;
737 texTemp
.height0
= height
;
740 texture
= screen
->resource_create(screen
, &texTemp
);
744 tex_surf
= screen
->get_tex_surface(screen
, texture
, 0, 0, 0,
745 PIPE_BIND_BLIT_SOURCE
|
746 PIPE_BIND_BLIT_DESTINATION
);
748 /* blit from the src to the temp */
749 util_blitter_do_copy(blitter
, tex_surf
, 0, 0,
753 util_blitter_do_copy(blitter
, dst
, dstx
, dsty
,
757 pipe_surface_reference(&tex_surf
, NULL
);
758 pipe_resource_reference(&texture
, NULL
);
759 blitter_restore_CSOs(ctx
);
762 void util_blitter_copy(struct blitter_context
*blitter
,
763 struct pipe_surface
*dst
,
764 unsigned dstx
, unsigned dsty
,
765 struct pipe_surface
*src
,
766 unsigned srcx
, unsigned srcy
,
767 unsigned width
, unsigned height
,
768 boolean ignore_stencil
)
770 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
771 struct pipe_context
*pipe
= ctx
->pipe
;
772 struct pipe_screen
*screen
= pipe
->screen
;
773 boolean is_stencil
, is_depth
;
774 unsigned dst_tex_usage
;
776 /* give up if textures are not set */
777 assert(dst
->texture
&& src
->texture
);
778 if (!dst
->texture
|| !src
->texture
)
781 if (dst
->texture
== src
->texture
) {
782 if (is_overlap(srcx
, srcx
+ width
, srcy
, srcy
+ height
,
783 dstx
, dstx
+ width
, dsty
, dsty
+ height
)) {
784 util_blitter_overlap_copy(blitter
, dst
, dstx
, dsty
, src
, srcx
, srcy
,
790 is_depth
= util_format_get_component_bits(src
->format
, UTIL_FORMAT_COLORSPACE_ZS
, 0) != 0;
791 is_stencil
= util_format_get_component_bits(src
->format
, UTIL_FORMAT_COLORSPACE_ZS
, 1) != 0;
792 dst_tex_usage
= is_depth
|| is_stencil
? PIPE_BIND_DEPTH_STENCIL
:
793 PIPE_BIND_RENDER_TARGET
;
795 /* check if we can sample from and render to the surfaces */
796 /* (assuming copying a stencil buffer is not possible) */
797 if ((!ignore_stencil
&& is_stencil
) ||
798 !screen
->is_format_supported(screen
, dst
->format
, dst
->texture
->target
,
800 !screen
->is_format_supported(screen
, src
->format
, src
->texture
->target
,
801 PIPE_BIND_SAMPLER_VIEW
, 0)) {
802 util_surface_copy(pipe
, FALSE
, dst
, dstx
, dsty
, src
, srcx
, srcy
,
807 /* check whether the states are properly saved */
808 blitter_check_saved_CSOs(ctx
);
809 util_blitter_do_copy(blitter
,
812 width
, height
, is_depth
);
813 blitter_restore_CSOs(ctx
);
816 void util_blitter_fill(struct blitter_context
*blitter
,
817 struct pipe_surface
*dst
,
818 unsigned dstx
, unsigned dsty
,
819 unsigned width
, unsigned height
,
822 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
823 struct pipe_context
*pipe
= ctx
->pipe
;
824 struct pipe_screen
*screen
= pipe
->screen
;
825 struct pipe_framebuffer_state fb_state
;
827 ubyte ub_rgba
[4] = {0};
828 union util_color color
;
831 assert(dst
->texture
);
835 /* check if we can render to the surface */
836 if (util_format_is_depth_or_stencil(dst
->format
) || /* unlikely, but you never know */
837 !screen
->is_format_supported(screen
, dst
->format
, dst
->texture
->target
,
838 PIPE_BIND_RENDER_TARGET
, 0)) {
839 util_surface_fill(pipe
, dst
, dstx
, dsty
, width
, height
, value
);
843 /* unpack the color */
845 util_unpack_color_ub(dst
->format
, &color
,
846 ub_rgba
, ub_rgba
+1, ub_rgba
+2, ub_rgba
+3);
847 for (i
= 0; i
< 4; i
++)
848 rgba
[i
] = ubyte_to_float(ub_rgba
[i
]);
850 /* check the saved state */
851 blitter_check_saved_CSOs(ctx
);
852 assert(blitter
->saved_fb_state
.nr_cbufs
!= ~0);
855 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
856 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
857 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
858 pipe
->bind_fs_state(pipe
, blitter_get_fs_col(ctx
, 1));
859 pipe
->bind_vs_state(pipe
, ctx
->vs_col
);
860 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
862 /* set a framebuffer state */
863 fb_state
.width
= dst
->width
;
864 fb_state
.height
= dst
->height
;
865 fb_state
.nr_cbufs
= 1;
866 fb_state
.cbufs
[0] = dst
;
868 pipe
->set_framebuffer_state(pipe
, &fb_state
);
870 blitter_set_clear_color(ctx
, rgba
);
871 blitter_set_rectangle(ctx
, 0, 0, width
, height
, dst
->width
, dst
->height
, 0);
872 blitter_draw_quad(ctx
);
873 blitter_restore_CSOs(ctx
);