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_simple_shaders.h"
49 #include "util/u_texture.h"
51 #define INVALID_PTR ((void*)~0)
53 struct blitter_context_priv
55 struct blitter_context blitter
;
57 struct pipe_context
*pipe
; /**< pipe context */
58 struct pipe_buffer
*vbuf
; /**< quad */
60 float vertices
[4][2][4]; /**< {pos, color} or {pos, texcoord} */
62 /* Templates for various state objects. */
63 struct pipe_depth_stencil_alpha_state template_dsa
;
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
[0xff]; /**< indices are stencil clear values */
89 void *dsa_write_depth_keep_stencil
;
90 void *dsa_keep_depth_stencil
;
92 /* Sampler state for clamping to a miplevel. */
93 void *sampler_state
[PIPE_MAX_TEXTURE_LEVELS
];
95 /* Rasterizer state. */
99 struct blitter_context
*util_blitter_create(struct pipe_context
*pipe
)
101 struct blitter_context_priv
*ctx
;
102 struct pipe_blend_state blend
;
103 struct pipe_depth_stencil_alpha_state
*dsa
;
104 struct pipe_rasterizer_state rs_state
;
105 struct pipe_sampler_state
*sampler_state
;
108 ctx
= CALLOC_STRUCT(blitter_context_priv
);
114 /* init state objects for them to be considered invalid */
115 ctx
->blitter
.saved_blend_state
= INVALID_PTR
;
116 ctx
->blitter
.saved_dsa_state
= INVALID_PTR
;
117 ctx
->blitter
.saved_rs_state
= INVALID_PTR
;
118 ctx
->blitter
.saved_fs
= INVALID_PTR
;
119 ctx
->blitter
.saved_vs
= INVALID_PTR
;
120 ctx
->blitter
.saved_fb_state
.nr_cbufs
= ~0;
121 ctx
->blitter
.saved_num_textures
= ~0;
122 ctx
->blitter
.saved_num_sampler_states
= ~0;
124 /* blend state objects */
125 memset(&blend
, 0, sizeof(blend
));
126 ctx
->blend_keep_color
= pipe
->create_blend_state(pipe
, &blend
);
128 blend
.rt
[0].colormask
= PIPE_MASK_RGBA
;
129 ctx
->blend_write_color
= pipe
->create_blend_state(pipe
, &blend
);
131 /* depth stencil alpha state objects */
132 dsa
= &ctx
->template_dsa
;
133 ctx
->dsa_keep_depth_stencil
=
134 pipe
->create_depth_stencil_alpha_state(pipe
, dsa
);
136 dsa
->depth
.enabled
= 1;
137 dsa
->depth
.writemask
= 1;
138 dsa
->depth
.func
= PIPE_FUNC_ALWAYS
;
139 ctx
->dsa_write_depth_keep_stencil
=
140 pipe
->create_depth_stencil_alpha_state(pipe
, dsa
);
142 dsa
->stencil
[0].enabled
= 1;
143 dsa
->stencil
[0].func
= PIPE_FUNC_ALWAYS
;
144 dsa
->stencil
[0].fail_op
= PIPE_STENCIL_OP_REPLACE
;
145 dsa
->stencil
[0].zpass_op
= PIPE_STENCIL_OP_REPLACE
;
146 dsa
->stencil
[0].zfail_op
= PIPE_STENCIL_OP_REPLACE
;
147 dsa
->stencil
[0].valuemask
= 0xff;
148 dsa
->stencil
[0].writemask
= 0xff;
149 /* The DSA state objects which write depth and stencil are created
153 sampler_state
= &ctx
->template_sampler_state
;
154 sampler_state
->wrap_s
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
155 sampler_state
->wrap_t
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
156 sampler_state
->wrap_r
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
157 /* The sampler state objects which sample from a specified mipmap level
158 * are created on-demand. */
160 /* rasterizer state */
161 memset(&rs_state
, 0, sizeof(rs_state
));
162 rs_state
.front_winding
= PIPE_WINDING_CW
;
163 rs_state
.cull_mode
= PIPE_WINDING_NONE
;
164 rs_state
.bypass_vs_clip_and_viewport
= 1;
165 rs_state
.gl_rasterization_rules
= 1;
166 rs_state
.flatshade
= 1;
167 ctx
->rs_state
= pipe
->create_rasterizer_state(pipe
, &rs_state
);
169 /* fragment shaders are created on-demand */
173 const uint semantic_names
[] = { TGSI_SEMANTIC_POSITION
,
174 TGSI_SEMANTIC_COLOR
};
175 const uint semantic_indices
[] = { 0, 0 };
177 util_make_vertex_passthrough_shader(pipe
, 2, semantic_names
,
181 const uint semantic_names
[] = { TGSI_SEMANTIC_POSITION
,
182 TGSI_SEMANTIC_GENERIC
};
183 const uint semantic_indices
[] = { 0, 0 };
185 util_make_vertex_passthrough_shader(pipe
, 2, semantic_names
,
189 /* set invariant vertex coordinates */
190 for (i
= 0; i
< 4; i
++)
191 ctx
->vertices
[i
][0][3] = 1; /*v.w*/
193 /* create the vertex buffer */
194 ctx
->vbuf
= pipe_buffer_create(ctx
->pipe
->screen
,
196 PIPE_BUFFER_USAGE_VERTEX
,
197 sizeof(ctx
->vertices
));
199 return &ctx
->blitter
;
202 void util_blitter_destroy(struct blitter_context
*blitter
)
204 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
205 struct pipe_context
*pipe
= ctx
->pipe
;
208 pipe
->delete_blend_state(pipe
, ctx
->blend_write_color
);
209 pipe
->delete_blend_state(pipe
, ctx
->blend_keep_color
);
210 pipe
->delete_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
211 pipe
->delete_depth_stencil_alpha_state(pipe
,
212 ctx
->dsa_write_depth_keep_stencil
);
214 for (i
= 0; i
< 0xff; i
++)
215 if (ctx
->dsa_write_depth_stencil
[i
])
216 pipe
->delete_depth_stencil_alpha_state(pipe
,
217 ctx
->dsa_write_depth_stencil
[i
]);
219 pipe
->delete_rasterizer_state(pipe
, ctx
->rs_state
);
220 pipe
->delete_vs_state(pipe
, ctx
->vs_col
);
221 pipe
->delete_vs_state(pipe
, ctx
->vs_tex
);
223 for (i
= 0; i
< PIPE_MAX_TEXTURE_TYPES
; i
++) {
224 if (ctx
->fs_texfetch_col
[i
])
225 pipe
->delete_fs_state(pipe
, ctx
->fs_texfetch_col
[i
]);
226 if (ctx
->fs_texfetch_depth
[i
])
227 pipe
->delete_fs_state(pipe
, ctx
->fs_texfetch_depth
[i
]);
230 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
&& ctx
->fs_col
[i
]; i
++)
232 pipe
->delete_fs_state(pipe
, ctx
->fs_col
[i
]);
234 for (i
= 0; i
< PIPE_MAX_TEXTURE_LEVELS
; i
++)
235 if (ctx
->sampler_state
[i
])
236 pipe
->delete_sampler_state(pipe
, ctx
->sampler_state
[i
]);
238 pipe_buffer_reference(&ctx
->vbuf
, NULL
);
242 static void blitter_check_saved_CSOs(struct blitter_context_priv
*ctx
)
244 /* make sure these CSOs have been saved */
245 assert(ctx
->blitter
.saved_blend_state
!= INVALID_PTR
&&
246 ctx
->blitter
.saved_dsa_state
!= INVALID_PTR
&&
247 ctx
->blitter
.saved_rs_state
!= INVALID_PTR
&&
248 ctx
->blitter
.saved_fs
!= INVALID_PTR
&&
249 ctx
->blitter
.saved_vs
!= INVALID_PTR
);
252 static void blitter_restore_CSOs(struct blitter_context_priv
*ctx
)
254 struct pipe_context
*pipe
= ctx
->pipe
;
256 /* restore the state objects which are always required to be saved */
257 pipe
->bind_blend_state(pipe
, ctx
->blitter
.saved_blend_state
);
258 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->blitter
.saved_dsa_state
);
259 pipe
->bind_rasterizer_state(pipe
, ctx
->blitter
.saved_rs_state
);
260 pipe
->bind_fs_state(pipe
, ctx
->blitter
.saved_fs
);
261 pipe
->bind_vs_state(pipe
, ctx
->blitter
.saved_vs
);
263 ctx
->blitter
.saved_blend_state
= INVALID_PTR
;
264 ctx
->blitter
.saved_dsa_state
= INVALID_PTR
;
265 ctx
->blitter
.saved_rs_state
= INVALID_PTR
;
266 ctx
->blitter
.saved_fs
= INVALID_PTR
;
267 ctx
->blitter
.saved_vs
= INVALID_PTR
;
269 /* restore the state objects which are required to be saved before copy/fill
271 if (ctx
->blitter
.saved_fb_state
.nr_cbufs
!= ~0) {
272 pipe
->set_framebuffer_state(pipe
, &ctx
->blitter
.saved_fb_state
);
273 ctx
->blitter
.saved_fb_state
.nr_cbufs
= ~0;
276 if (ctx
->blitter
.saved_num_sampler_states
!= ~0) {
277 pipe
->bind_fragment_sampler_states(pipe
,
278 ctx
->blitter
.saved_num_sampler_states
,
279 ctx
->blitter
.saved_sampler_states
);
280 ctx
->blitter
.saved_num_sampler_states
= ~0;
283 if (ctx
->blitter
.saved_num_textures
!= ~0) {
284 pipe
->set_fragment_sampler_textures(pipe
,
285 ctx
->blitter
.saved_num_textures
,
286 ctx
->blitter
.saved_textures
);
287 ctx
->blitter
.saved_num_textures
= ~0;
291 static void blitter_set_rectangle(struct blitter_context_priv
*ctx
,
292 unsigned x1
, unsigned y1
,
293 unsigned x2
, unsigned y2
,
298 /* set vertex positions */
299 ctx
->vertices
[0][0][0] = x1
; /*v0.x*/
300 ctx
->vertices
[0][0][1] = y1
; /*v0.y*/
302 ctx
->vertices
[1][0][0] = x2
; /*v1.x*/
303 ctx
->vertices
[1][0][1] = y1
; /*v1.y*/
305 ctx
->vertices
[2][0][0] = x2
; /*v2.x*/
306 ctx
->vertices
[2][0][1] = y2
; /*v2.y*/
308 ctx
->vertices
[3][0][0] = x1
; /*v3.x*/
309 ctx
->vertices
[3][0][1] = y2
; /*v3.y*/
311 for (i
= 0; i
< 4; i
++)
312 ctx
->vertices
[i
][0][2] = depth
; /*z*/
315 static void blitter_set_clear_color(struct blitter_context_priv
*ctx
,
320 for (i
= 0; i
< 4; i
++) {
321 ctx
->vertices
[i
][1][0] = rgba
[0];
322 ctx
->vertices
[i
][1][1] = rgba
[1];
323 ctx
->vertices
[i
][1][2] = rgba
[2];
324 ctx
->vertices
[i
][1][3] = rgba
[3];
328 static void blitter_set_texcoords_2d(struct blitter_context_priv
*ctx
,
329 struct pipe_surface
*surf
,
330 unsigned x1
, unsigned y1
,
331 unsigned x2
, unsigned y2
)
334 float s1
= x1
/ (float)surf
->width
;
335 float t1
= y1
/ (float)surf
->height
;
336 float s2
= x2
/ (float)surf
->width
;
337 float t2
= y2
/ (float)surf
->height
;
339 ctx
->vertices
[0][1][0] = s1
; /*t0.s*/
340 ctx
->vertices
[0][1][1] = t1
; /*t0.t*/
342 ctx
->vertices
[1][1][0] = s2
; /*t1.s*/
343 ctx
->vertices
[1][1][1] = t1
; /*t1.t*/
345 ctx
->vertices
[2][1][0] = s2
; /*t2.s*/
346 ctx
->vertices
[2][1][1] = t2
; /*t2.t*/
348 ctx
->vertices
[3][1][0] = s1
; /*t3.s*/
349 ctx
->vertices
[3][1][1] = t2
; /*t3.t*/
351 for (i
= 0; i
< 4; i
++) {
352 ctx
->vertices
[i
][1][2] = 0; /*r*/
353 ctx
->vertices
[i
][1][3] = 1; /*q*/
357 static void blitter_set_texcoords_3d(struct blitter_context_priv
*ctx
,
358 struct pipe_surface
*surf
,
359 unsigned x1
, unsigned y1
,
360 unsigned x2
, unsigned y2
)
363 float depth
= u_minify(surf
->texture
->depth0
, surf
->level
);
364 float r
= surf
->zslice
/ depth
;
366 blitter_set_texcoords_2d(ctx
, surf
, x1
, y1
, x2
, y2
);
368 for (i
= 0; i
< 4; i
++)
369 ctx
->vertices
[i
][1][2] = r
; /*r*/
372 static void blitter_set_texcoords_cube(struct blitter_context_priv
*ctx
,
373 struct pipe_surface
*surf
,
374 unsigned x1
, unsigned y1
,
375 unsigned x2
, unsigned y2
)
378 float s1
= x1
/ (float)surf
->width
;
379 float t1
= y1
/ (float)surf
->height
;
380 float s2
= x2
/ (float)surf
->width
;
381 float t2
= y2
/ (float)surf
->height
;
393 util_map_texcoords2d_onto_cubemap(surf
->face
,
394 /* pointer, stride in floats */
396 &ctx
->vertices
[0][1][0], 8);
398 for (i
= 0; i
< 4; i
++)
399 ctx
->vertices
[i
][1][3] = 1; /*q*/
402 static void blitter_draw_quad(struct blitter_context_priv
*ctx
)
404 struct pipe_context
*pipe
= ctx
->pipe
;
406 /* write vertices and draw them */
407 pipe_buffer_write(pipe
->screen
, ctx
->vbuf
,
408 0, sizeof(ctx
->vertices
), ctx
->vertices
);
410 util_draw_vertex_buffer(pipe
, ctx
->vbuf
, 0, PIPE_PRIM_TRIANGLE_FAN
,
412 2); /* attribs/vert */
416 void *blitter_get_state_write_depth_stencil(
417 struct blitter_context_priv
*ctx
,
420 struct pipe_context
*pipe
= ctx
->pipe
;
424 /* Create the DSA state on-demand. */
425 if (!ctx
->dsa_write_depth_stencil
[stencil
]) {
426 ctx
->template_dsa
.stencil
[0].ref_value
= stencil
;
428 ctx
->dsa_write_depth_stencil
[stencil
] =
429 pipe
->create_depth_stencil_alpha_state(pipe
, &ctx
->template_dsa
);
432 return ctx
->dsa_write_depth_stencil
[stencil
];
436 void **blitter_get_sampler_state(struct blitter_context_priv
*ctx
,
439 struct pipe_context
*pipe
= ctx
->pipe
;
440 struct pipe_sampler_state
*sampler_state
= &ctx
->template_sampler_state
;
442 assert(miplevel
< PIPE_MAX_TEXTURE_LEVELS
);
444 /* Create the sampler state on-demand. */
445 if (!ctx
->sampler_state
[miplevel
]) {
446 sampler_state
->lod_bias
= miplevel
;
447 sampler_state
->min_lod
= miplevel
;
448 sampler_state
->max_lod
= miplevel
;
450 ctx
->sampler_state
[miplevel
] = pipe
->create_sampler_state(pipe
,
454 /* Return void** so that it can be passed to bind_fragment_sampler_states
456 return &ctx
->sampler_state
[miplevel
];
460 void *blitter_get_fs_col(struct blitter_context_priv
*ctx
, unsigned num_cbufs
)
462 struct pipe_context
*pipe
= ctx
->pipe
;
463 unsigned index
= num_cbufs
? num_cbufs
- 1 : 0;
465 assert(num_cbufs
<= PIPE_MAX_COLOR_BUFS
);
467 if (!ctx
->fs_col
[index
])
469 util_make_fragment_clonecolor_shader(pipe
, num_cbufs
);
471 return ctx
->fs_col
[index
];
475 void *blitter_get_fs_texfetch_col(struct blitter_context_priv
*ctx
,
478 struct pipe_context
*pipe
= ctx
->pipe
;
480 assert(tex_target
< PIPE_MAX_TEXTURE_TYPES
);
482 /* Create the fragment shader on-demand. */
483 if (!ctx
->fs_texfetch_col
[tex_target
]) {
484 switch (tex_target
) {
485 case PIPE_TEXTURE_1D
:
486 ctx
->fs_texfetch_col
[PIPE_TEXTURE_1D
] =
487 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_1D
);
489 case PIPE_TEXTURE_2D
:
490 ctx
->fs_texfetch_col
[PIPE_TEXTURE_2D
] =
491 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_2D
);
493 case PIPE_TEXTURE_3D
:
494 ctx
->fs_texfetch_col
[PIPE_TEXTURE_3D
] =
495 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_3D
);
497 case PIPE_TEXTURE_CUBE
:
498 ctx
->fs_texfetch_col
[PIPE_TEXTURE_CUBE
] =
499 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_CUBE
);
505 return ctx
->fs_texfetch_col
[tex_target
];
509 void *blitter_get_fs_texfetch_depth(struct blitter_context_priv
*ctx
,
512 struct pipe_context
*pipe
= ctx
->pipe
;
514 assert(tex_target
< PIPE_MAX_TEXTURE_TYPES
);
516 /* Create the fragment shader on-demand. */
517 if (!ctx
->fs_texfetch_depth
[tex_target
]) {
518 switch (tex_target
) {
519 case PIPE_TEXTURE_1D
:
520 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_1D
] =
521 util_make_fragment_tex_shader_writedepth(pipe
, TGSI_TEXTURE_1D
);
523 case PIPE_TEXTURE_2D
:
524 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_2D
] =
525 util_make_fragment_tex_shader_writedepth(pipe
, TGSI_TEXTURE_2D
);
527 case PIPE_TEXTURE_3D
:
528 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_3D
] =
529 util_make_fragment_tex_shader_writedepth(pipe
, TGSI_TEXTURE_3D
);
531 case PIPE_TEXTURE_CUBE
:
532 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_CUBE
] =
533 util_make_fragment_tex_shader_writedepth(pipe
,TGSI_TEXTURE_CUBE
);
539 return ctx
->fs_texfetch_depth
[tex_target
];
542 void util_blitter_clear(struct blitter_context
*blitter
,
543 unsigned width
, unsigned height
,
545 unsigned clear_buffers
,
547 double depth
, unsigned stencil
)
549 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
550 struct pipe_context
*pipe
= ctx
->pipe
;
552 assert(num_cbufs
<= PIPE_MAX_COLOR_BUFS
);
554 blitter_check_saved_CSOs(ctx
);
557 if (clear_buffers
& PIPE_CLEAR_COLOR
)
558 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
560 pipe
->bind_blend_state(pipe
, ctx
->blend_keep_color
);
562 if (clear_buffers
& PIPE_CLEAR_DEPTHSTENCIL
)
563 pipe
->bind_depth_stencil_alpha_state(pipe
,
564 blitter_get_state_write_depth_stencil(ctx
, stencil
));
566 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
568 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
569 pipe
->bind_fs_state(pipe
, blitter_get_fs_col(ctx
, num_cbufs
));
570 pipe
->bind_vs_state(pipe
, ctx
->vs_col
);
572 blitter_set_clear_color(ctx
, rgba
);
573 blitter_set_rectangle(ctx
, 0, 0, width
, height
, depth
);
574 blitter_draw_quad(ctx
);
575 blitter_restore_CSOs(ctx
);
579 is_overlap(unsigned sx1
, unsigned sx2
, unsigned sy1
, unsigned sy2
,
580 unsigned dx1
, unsigned dx2
, unsigned dy1
, unsigned dy2
)
582 if (sx1
>= dx2
|| sx2
<= dx1
|| sy1
>= dy2
|| sy2
<= dy1
) {
589 static void util_blitter_do_copy(struct blitter_context
*blitter
,
590 struct pipe_surface
*dst
,
591 unsigned dstx
, unsigned dsty
,
592 struct pipe_surface
*src
,
593 unsigned srcx
, unsigned srcy
,
594 unsigned width
, unsigned height
,
597 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
598 struct pipe_context
*pipe
= ctx
->pipe
;
599 struct pipe_framebuffer_state fb_state
;
601 assert(blitter
->saved_fb_state
.nr_cbufs
!= ~0);
602 assert(blitter
->saved_num_textures
!= ~0);
603 assert(blitter
->saved_num_sampler_states
!= ~0);
604 assert(src
->texture
->target
< PIPE_MAX_TEXTURE_TYPES
);
607 fb_state
.width
= dst
->width
;
608 fb_state
.height
= dst
->height
;
611 pipe
->bind_blend_state(pipe
, ctx
->blend_keep_color
);
612 pipe
->bind_depth_stencil_alpha_state(pipe
,
613 ctx
->dsa_write_depth_keep_stencil
);
614 pipe
->bind_fs_state(pipe
,
615 blitter_get_fs_texfetch_depth(ctx
, src
->texture
->target
));
617 fb_state
.nr_cbufs
= 0;
618 fb_state
.zsbuf
= dst
;
620 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
621 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
622 pipe
->bind_fs_state(pipe
,
623 blitter_get_fs_texfetch_col(ctx
, src
->texture
->target
));
625 fb_state
.nr_cbufs
= 1;
626 fb_state
.cbufs
[0] = dst
;
630 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
631 pipe
->bind_vs_state(pipe
, ctx
->vs_tex
);
632 pipe
->bind_fragment_sampler_states(pipe
, 1,
633 blitter_get_sampler_state(ctx
, src
->level
));
634 pipe
->set_fragment_sampler_textures(pipe
, 1, &src
->texture
);
635 pipe
->set_framebuffer_state(pipe
, &fb_state
);
637 /* set texture coordinates */
638 switch (src
->texture
->target
) {
639 case PIPE_TEXTURE_1D
:
640 case PIPE_TEXTURE_2D
:
641 blitter_set_texcoords_2d(ctx
, src
, srcx
, srcy
,
642 srcx
+width
, srcy
+height
);
644 case PIPE_TEXTURE_3D
:
645 blitter_set_texcoords_3d(ctx
, src
, srcx
, srcy
,
646 srcx
+width
, srcy
+height
);
648 case PIPE_TEXTURE_CUBE
:
649 blitter_set_texcoords_cube(ctx
, src
, srcx
, srcy
,
650 srcx
+width
, srcy
+height
);
656 blitter_set_rectangle(ctx
, dstx
, dsty
, dstx
+width
, dsty
+height
, 0);
657 blitter_draw_quad(ctx
);
661 static void util_blitter_overlap_copy(struct blitter_context
*blitter
,
662 struct pipe_surface
*dst
,
663 unsigned dstx
, unsigned dsty
,
664 struct pipe_surface
*src
,
665 unsigned srcx
, unsigned srcy
,
666 unsigned width
, unsigned height
)
668 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
669 struct pipe_context
*pipe
= ctx
->pipe
;
670 struct pipe_screen
*screen
= pipe
->screen
;
672 struct pipe_texture texTemp
;
673 struct pipe_texture
*texture
;
674 struct pipe_surface
*tex_surf
;
676 /* check whether the states are properly saved */
677 blitter_check_saved_CSOs(ctx
);
679 memset(&texTemp
, 0, sizeof(texTemp
));
680 texTemp
.target
= PIPE_TEXTURE_2D
;
681 texTemp
.format
= dst
->texture
->format
; /* XXX verify supported by driver! */
682 texTemp
.last_level
= 0;
683 texTemp
.width0
= width
;
684 texTemp
.height0
= height
;
687 texture
= screen
->texture_create(screen
, &texTemp
);
691 tex_surf
= screen
->get_tex_surface(screen
, texture
, 0, 0, 0,
692 PIPE_BUFFER_USAGE_GPU_READ
|
693 PIPE_BUFFER_USAGE_GPU_WRITE
);
695 /* blit from the src to the temp */
696 util_blitter_do_copy(blitter
, tex_surf
, 0, 0,
700 util_blitter_do_copy(blitter
, dst
, dstx
, dsty
,
704 pipe_surface_reference(&tex_surf
, NULL
);
705 pipe_texture_reference(&texture
, NULL
);
706 blitter_restore_CSOs(ctx
);
709 void util_blitter_copy(struct blitter_context
*blitter
,
710 struct pipe_surface
*dst
,
711 unsigned dstx
, unsigned dsty
,
712 struct pipe_surface
*src
,
713 unsigned srcx
, unsigned srcy
,
714 unsigned width
, unsigned height
,
715 boolean ignore_stencil
)
717 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
718 struct pipe_context
*pipe
= ctx
->pipe
;
719 struct pipe_screen
*screen
= pipe
->screen
;
720 boolean is_stencil
, is_depth
;
721 unsigned dst_tex_usage
;
723 /* give up if textures are not set */
724 assert(dst
->texture
&& src
->texture
);
725 if (!dst
->texture
|| !src
->texture
)
728 if (dst
->texture
== src
->texture
) {
729 if (is_overlap(srcx
, srcx
+ width
, srcy
, srcy
+ height
,
730 dstx
, dstx
+ width
, dsty
, dsty
+ height
)) {
731 util_blitter_overlap_copy(blitter
, dst
, dstx
, dsty
, src
, srcx
, srcy
,
737 is_depth
= util_format_get_component_bits(src
->format
, UTIL_FORMAT_COLORSPACE_ZS
, 0) != 0;
738 is_stencil
= util_format_get_component_bits(src
->format
, UTIL_FORMAT_COLORSPACE_ZS
, 1) != 0;
739 dst_tex_usage
= is_depth
|| is_stencil
? PIPE_TEXTURE_USAGE_DEPTH_STENCIL
:
740 PIPE_TEXTURE_USAGE_RENDER_TARGET
;
742 /* check if we can sample from and render to the surfaces */
743 /* (assuming copying a stencil buffer is not possible) */
744 if ((!ignore_stencil
&& is_stencil
) ||
745 !screen
->is_format_supported(screen
, dst
->format
, dst
->texture
->target
,
747 !screen
->is_format_supported(screen
, src
->format
, src
->texture
->target
,
748 PIPE_TEXTURE_USAGE_SAMPLER
, 0)) {
749 util_surface_copy(pipe
, FALSE
, dst
, dstx
, dsty
, src
, srcx
, srcy
,
754 /* check whether the states are properly saved */
755 blitter_check_saved_CSOs(ctx
);
756 util_blitter_do_copy(blitter
,
759 width
, height
, is_depth
);
760 blitter_restore_CSOs(ctx
);
763 void util_blitter_fill(struct blitter_context
*blitter
,
764 struct pipe_surface
*dst
,
765 unsigned dstx
, unsigned dsty
,
766 unsigned width
, unsigned height
,
769 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
770 struct pipe_context
*pipe
= ctx
->pipe
;
771 struct pipe_screen
*screen
= pipe
->screen
;
772 struct pipe_framebuffer_state fb_state
;
774 ubyte ub_rgba
[4] = {0};
775 union util_color color
;
778 assert(dst
->texture
);
782 /* check if we can render to the surface */
783 if (util_format_is_depth_or_stencil(dst
->format
) || /* unlikely, but you never know */
784 !screen
->is_format_supported(screen
, dst
->format
, dst
->texture
->target
,
785 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
786 util_surface_fill(pipe
, dst
, dstx
, dsty
, width
, height
, value
);
790 /* unpack the color */
792 util_unpack_color_ub(dst
->format
, &color
,
793 ub_rgba
, ub_rgba
+1, ub_rgba
+2, ub_rgba
+3);
794 for (i
= 0; i
< 4; i
++)
795 rgba
[i
] = ubyte_to_float(ub_rgba
[i
]);
797 /* check the saved state */
798 blitter_check_saved_CSOs(ctx
);
799 assert(blitter
->saved_fb_state
.nr_cbufs
!= ~0);
802 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
803 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
804 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
805 pipe
->bind_fs_state(pipe
, blitter_get_fs_col(ctx
, 1));
806 pipe
->bind_vs_state(pipe
, ctx
->vs_col
);
808 /* set a framebuffer state */
809 fb_state
.width
= dst
->width
;
810 fb_state
.height
= dst
->height
;
811 fb_state
.nr_cbufs
= 1;
812 fb_state
.cbufs
[0] = dst
;
814 pipe
->set_framebuffer_state(pipe
, &fb_state
);
816 blitter_set_clear_color(ctx
, rgba
);
817 blitter_set_rectangle(ctx
, 0, 0, width
, height
, 0);
818 blitter_draw_quad(ctx
);
819 blitter_restore_CSOs(ctx
);