1 /**************************************************************************
3 * Copyright 2010 Christian König
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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 TUNGSTEN GRAPHICS 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.
26 **************************************************************************/
29 #include "vl_vertex_buffers.h"
30 #include "util/u_draw.h"
32 #include <pipe/p_context.h>
33 #include <pipe/p_screen.h>
34 #include <util/u_inlines.h>
35 #include <util/u_sampler.h>
36 #include <util/u_format.h>
37 #include <tgsi/tgsi_ureg.h>
41 #define BLOCK_HEIGHT 8
43 #define SCALE_FACTOR_16_TO_9 (32768.0f / 256.0f)
45 #define NR_RENDER_TARGETS 4
64 static const float const_matrix
[8][8] = {
65 { 0.3535530f
, 0.3535530f
, 0.3535530f
, 0.3535530f
, 0.3535530f
, 0.3535530f
, 0.353553f
, 0.3535530f
},
66 { 0.4903930f
, 0.4157350f
, 0.2777850f
, 0.0975451f
, -0.0975452f
, -0.2777850f
, -0.415735f
, -0.4903930f
},
67 { 0.4619400f
, 0.1913420f
, -0.1913420f
, -0.4619400f
, -0.4619400f
, -0.1913420f
, 0.191342f
, 0.4619400f
},
68 { 0.4157350f
, -0.0975452f
, -0.4903930f
, -0.2777850f
, 0.2777850f
, 0.4903930f
, 0.097545f
, -0.4157350f
},
69 { 0.3535530f
, -0.3535530f
, -0.3535530f
, 0.3535540f
, 0.3535530f
, -0.3535540f
, -0.353553f
, 0.3535530f
},
70 { 0.2777850f
, -0.4903930f
, 0.0975452f
, 0.4157350f
, -0.4157350f
, -0.0975451f
, 0.490393f
, -0.2777850f
},
71 { 0.1913420f
, -0.4619400f
, 0.4619400f
, -0.1913420f
, -0.1913410f
, 0.4619400f
, -0.461940f
, 0.1913420f
},
72 { 0.0975451f
, -0.2777850f
, 0.4157350f
, -0.4903930f
, 0.4903930f
, -0.4157350f
, 0.277786f
, -0.0975458f
}
76 calc_addr(struct ureg_program
*shader
, struct ureg_dst addr
[2],
77 struct ureg_src tc
, struct ureg_src start
, bool right_side
,
78 bool transposed
, float size
)
80 unsigned wm_start
= (right_side
== transposed
) ? TGSI_WRITEMASK_X
: TGSI_WRITEMASK_Y
;
81 unsigned sw_start
= right_side
? TGSI_SWIZZLE_Y
: TGSI_SWIZZLE_X
;
83 unsigned wm_tc
= (right_side
== transposed
) ? TGSI_WRITEMASK_Y
: TGSI_WRITEMASK_X
;
84 unsigned sw_tc
= right_side
? TGSI_SWIZZLE_X
: TGSI_SWIZZLE_Y
;
87 * addr[0..1].(start) = right_side ? start.x : tc.x
88 * addr[0..1].(tc) = right_side ? tc.y : start.y
90 * addr[1].(start) += 1.0f / scale
92 ureg_MOV(shader
, ureg_writemask(addr
[0], wm_start
), ureg_scalar(start
, sw_start
));
93 ureg_MOV(shader
, ureg_writemask(addr
[0], wm_tc
), ureg_scalar(tc
, sw_tc
));
94 ureg_MOV(shader
, ureg_writemask(addr
[0], TGSI_WRITEMASK_Z
), tc
);
96 ureg_ADD(shader
, ureg_writemask(addr
[1], wm_start
), ureg_scalar(start
, sw_start
), ureg_imm1f(shader
, 1.0f
/ size
));
97 ureg_MOV(shader
, ureg_writemask(addr
[1], wm_tc
), ureg_scalar(tc
, sw_tc
));
98 ureg_MOV(shader
, ureg_writemask(addr
[1], TGSI_WRITEMASK_Z
), tc
);
102 create_vert_shader(struct vl_idct
*idct
, bool matrix_stage
)
104 struct ureg_program
*shader
;
105 struct ureg_src scale
;
106 struct ureg_src vrect
, vpos
;
107 struct ureg_dst t_tex
, t_start
;
108 struct ureg_dst o_vpos
, o_l_addr
[2], o_r_addr
[2];
110 shader
= ureg_create(TGSI_PROCESSOR_VERTEX
);
114 t_tex
= ureg_DECL_temporary(shader
);
115 t_start
= ureg_DECL_temporary(shader
);
117 vrect
= ureg_DECL_vs_input(shader
, VS_I_RECT
);
118 vpos
= ureg_DECL_vs_input(shader
, VS_I_VPOS
);
120 o_vpos
= ureg_DECL_output(shader
, TGSI_SEMANTIC_POSITION
, VS_O_VPOS
);
122 o_l_addr
[0] = ureg_DECL_output(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_L_ADDR0
);
123 o_l_addr
[1] = ureg_DECL_output(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_L_ADDR1
);
125 o_r_addr
[0] = ureg_DECL_output(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_R_ADDR0
);
126 o_r_addr
[1] = ureg_DECL_output(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_R_ADDR1
);
129 * scale = (BLOCK_WIDTH, BLOCK_HEIGHT) / (dst.width, dst.height)
131 * t_vpos = vpos + vrect
132 * o_vpos.xy = t_vpos * scale
135 * o_l_addr = calc_addr(...)
136 * o_r_addr = calc_addr(...)
139 scale
= ureg_imm2f(shader
,
140 (float)BLOCK_WIDTH
/ idct
->buffer_width
,
141 (float)BLOCK_HEIGHT
/ idct
->buffer_height
);
143 ureg_ADD(shader
, ureg_writemask(t_tex
, TGSI_WRITEMASK_XY
), vpos
, vrect
);
144 ureg_MUL(shader
, ureg_writemask(t_tex
, TGSI_WRITEMASK_XY
), ureg_src(t_tex
), scale
);
145 ureg_MUL(shader
, ureg_writemask(t_tex
, TGSI_WRITEMASK_Z
),
146 ureg_scalar(vrect
, TGSI_SWIZZLE_X
),
147 ureg_imm1f(shader
, BLOCK_WIDTH
/ NR_RENDER_TARGETS
));
149 ureg_MOV(shader
, ureg_writemask(o_vpos
, TGSI_WRITEMASK_XY
), ureg_src(t_tex
));
150 ureg_MOV(shader
, ureg_writemask(o_vpos
, TGSI_WRITEMASK_ZW
), vpos
);
152 ureg_MUL(shader
, ureg_writemask(t_start
, TGSI_WRITEMASK_XY
), vpos
, scale
);
155 calc_addr(shader
, o_l_addr
, ureg_src(t_tex
), ureg_src(t_start
), false, false, idct
->buffer_width
/ 4);
156 calc_addr(shader
, o_r_addr
, vrect
, ureg_imm1f(shader
, 0.0f
), true, true, BLOCK_WIDTH
/ 4);
158 calc_addr(shader
, o_l_addr
, vrect
, ureg_imm1f(shader
, 0.0f
), false, false, BLOCK_WIDTH
/ 4);
159 calc_addr(shader
, o_r_addr
, ureg_src(t_tex
), ureg_src(t_start
), true, false, idct
->buffer_height
/ 4);
162 ureg_release_temporary(shader
, t_tex
);
163 ureg_release_temporary(shader
, t_start
);
167 return ureg_create_shader_and_destroy(shader
, idct
->pipe
);
171 increment_addr(struct ureg_program
*shader
, struct ureg_dst daddr
[2],
172 struct ureg_src saddr
[2], bool right_side
, bool transposed
,
175 unsigned wm_start
= (right_side
== transposed
) ? TGSI_WRITEMASK_X
: TGSI_WRITEMASK_Y
;
176 unsigned wm_tc
= (right_side
== transposed
) ? TGSI_WRITEMASK_Y
: TGSI_WRITEMASK_X
;
179 * daddr[0..1].(start) = saddr[0..1].(start)
180 * daddr[0..1].(tc) = saddr[0..1].(tc)
183 ureg_MOV(shader
, ureg_writemask(daddr
[0], wm_start
), saddr
[0]);
184 ureg_ADD(shader
, ureg_writemask(daddr
[0], wm_tc
), saddr
[0], ureg_imm1f(shader
, pos
/ size
));
185 ureg_MOV(shader
, ureg_writemask(daddr
[1], wm_start
), saddr
[1]);
186 ureg_ADD(shader
, ureg_writemask(daddr
[1], wm_tc
), saddr
[1], ureg_imm1f(shader
, pos
/ size
));
190 fetch_four(struct ureg_program
*shader
, struct ureg_dst m
[2], struct ureg_src addr
[2], struct ureg_src sampler
)
192 ureg_TEX(shader
, m
[0], TGSI_TEXTURE_3D
, addr
[0], sampler
);
193 ureg_TEX(shader
, m
[1], TGSI_TEXTURE_3D
, addr
[1], sampler
);
197 matrix_mul(struct ureg_program
*shader
, struct ureg_dst dst
, struct ureg_dst l
[2], struct ureg_dst r
[2])
201 tmp
= ureg_DECL_temporary(shader
);
204 * tmp.xy = dot4(m[0][0..1], m[1][0..1])
205 * dst = tmp.x + tmp.y
207 ureg_DP4(shader
, ureg_writemask(tmp
, TGSI_WRITEMASK_X
), ureg_src(l
[0]), ureg_src(r
[0]));
208 ureg_DP4(shader
, ureg_writemask(tmp
, TGSI_WRITEMASK_Y
), ureg_src(l
[1]), ureg_src(r
[1]));
209 ureg_ADD(shader
, dst
,
210 ureg_scalar(ureg_src(tmp
), TGSI_SWIZZLE_X
),
211 ureg_scalar(ureg_src(tmp
), TGSI_SWIZZLE_Y
));
213 ureg_release_temporary(shader
, tmp
);
217 create_matrix_frag_shader(struct vl_idct
*idct
)
219 struct ureg_program
*shader
;
221 struct ureg_src l_addr
[2], r_addr
[2];
223 struct ureg_dst l
[4][2], r
[2];
224 struct ureg_dst fragment
[NR_RENDER_TARGETS
];
228 shader
= ureg_create(TGSI_PROCESSOR_FRAGMENT
);
232 l_addr
[0] = ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_L_ADDR0
, TGSI_INTERPOLATE_LINEAR
);
233 l_addr
[1] = ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_L_ADDR1
, TGSI_INTERPOLATE_LINEAR
);
235 r_addr
[0] = ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_R_ADDR0
, TGSI_INTERPOLATE_LINEAR
);
236 r_addr
[1] = ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_R_ADDR1
, TGSI_INTERPOLATE_LINEAR
);
238 for (i
= 0; i
< NR_RENDER_TARGETS
; ++i
)
239 fragment
[i
] = ureg_DECL_output(shader
, TGSI_SEMANTIC_COLOR
, i
);
241 for (i
= 0; i
< 4; ++i
) {
242 l
[i
][0] = ureg_DECL_temporary(shader
);
243 l
[i
][1] = ureg_DECL_temporary(shader
);
246 r
[0] = ureg_DECL_temporary(shader
);
247 r
[1] = ureg_DECL_temporary(shader
);
249 for (i
= 1; i
< 4; ++i
) {
250 increment_addr(shader
, l
[i
], l_addr
, false, false, i
, idct
->buffer_height
);
253 for (i
= 0; i
< 4; ++i
) {
254 struct ureg_src s_addr
[2];
255 s_addr
[0] = i
== 0 ? l_addr
[0] : ureg_src(l
[i
][0]);
256 s_addr
[1] = i
== 0 ? l_addr
[1] : ureg_src(l
[i
][1]);
257 fetch_four(shader
, l
[i
], s_addr
, ureg_DECL_sampler(shader
, 1));
260 for (i
= 0; i
< NR_RENDER_TARGETS
; ++i
) {
262 increment_addr(shader
, r
, r_addr
, true, true, i
, BLOCK_HEIGHT
);
264 struct ureg_src s_addr
[2] = { ureg_src(r
[0]), ureg_src(r
[1]) };
265 s_addr
[0] = i
== 0 ? r_addr
[0] : ureg_src(r
[0]);
266 s_addr
[1] = i
== 0 ? r_addr
[1] : ureg_src(r
[1]);
267 fetch_four(shader
, r
, s_addr
, ureg_DECL_sampler(shader
, 0));
269 for (j
= 0; j
< 4; ++j
) {
270 matrix_mul(shader
, ureg_writemask(fragment
[i
], TGSI_WRITEMASK_X
<< j
), l
[j
], r
);
274 for (i
= 0; i
< 4; ++i
) {
275 ureg_release_temporary(shader
, l
[i
][0]);
276 ureg_release_temporary(shader
, l
[i
][1]);
278 ureg_release_temporary(shader
, r
[0]);
279 ureg_release_temporary(shader
, r
[1]);
283 return ureg_create_shader_and_destroy(shader
, idct
->pipe
);
287 create_transpose_frag_shader(struct vl_idct
*idct
)
289 struct ureg_program
*shader
;
291 struct ureg_src l_addr
[2], r_addr
[2];
293 struct ureg_dst l
[2], r
[2];
294 struct ureg_dst fragment
;
296 shader
= ureg_create(TGSI_PROCESSOR_FRAGMENT
);
300 l_addr
[0] = ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_L_ADDR0
, TGSI_INTERPOLATE_LINEAR
);
301 l_addr
[1] = ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_L_ADDR1
, TGSI_INTERPOLATE_LINEAR
);
303 r_addr
[0] = ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_R_ADDR0
, TGSI_INTERPOLATE_LINEAR
);
304 r_addr
[1] = ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_R_ADDR1
, TGSI_INTERPOLATE_LINEAR
);
306 l
[0] = ureg_DECL_temporary(shader
);
307 l
[1] = ureg_DECL_temporary(shader
);
308 r
[0] = ureg_DECL_temporary(shader
);
309 r
[1] = ureg_DECL_temporary(shader
);
311 fetch_four(shader
, l
, l_addr
, ureg_DECL_sampler(shader
, 0));
312 fetch_four(shader
, r
, r_addr
, ureg_DECL_sampler(shader
, 1));
314 fragment
= ureg_DECL_output(shader
, TGSI_SEMANTIC_COLOR
, 0);
316 matrix_mul(shader
, ureg_writemask(fragment
, TGSI_WRITEMASK_X
), l
, r
);
318 ureg_release_temporary(shader
, l
[0]);
319 ureg_release_temporary(shader
, l
[1]);
320 ureg_release_temporary(shader
, r
[0]);
321 ureg_release_temporary(shader
, r
[1]);
325 return ureg_create_shader_and_destroy(shader
, idct
->pipe
);
329 init_shaders(struct vl_idct
*idct
)
331 idct
->matrix_vs
= create_vert_shader(idct
, true);
332 idct
->matrix_fs
= create_matrix_frag_shader(idct
);
334 idct
->transpose_vs
= create_vert_shader(idct
, false);
335 idct
->transpose_fs
= create_transpose_frag_shader(idct
);
338 idct
->matrix_vs
!= NULL
&&
339 idct
->matrix_fs
!= NULL
&&
340 idct
->transpose_vs
!= NULL
&&
341 idct
->transpose_fs
!= NULL
;
345 cleanup_shaders(struct vl_idct
*idct
)
347 idct
->pipe
->delete_vs_state(idct
->pipe
, idct
->matrix_vs
);
348 idct
->pipe
->delete_fs_state(idct
->pipe
, idct
->matrix_fs
);
349 idct
->pipe
->delete_vs_state(idct
->pipe
, idct
->transpose_vs
);
350 idct
->pipe
->delete_fs_state(idct
->pipe
, idct
->transpose_fs
);
354 init_state(struct vl_idct
*idct
)
356 struct pipe_vertex_element vertex_elems
[NUM_VS_INPUTS
];
357 struct pipe_sampler_state sampler
;
358 struct pipe_rasterizer_state rs_state
;
363 idct
->quad
= vl_vb_upload_quads(idct
->pipe
, idct
->max_blocks
);
365 if(idct
->quad
.buffer
== NULL
)
368 for (i
= 0; i
< 4; ++i
) {
369 memset(&sampler
, 0, sizeof(sampler
));
370 sampler
.wrap_s
= PIPE_TEX_WRAP_REPEAT
;
371 sampler
.wrap_t
= PIPE_TEX_WRAP_REPEAT
;
372 sampler
.wrap_r
= PIPE_TEX_WRAP_REPEAT
;
373 sampler
.min_img_filter
= PIPE_TEX_FILTER_NEAREST
;
374 sampler
.min_mip_filter
= PIPE_TEX_MIPFILTER_NONE
;
375 sampler
.mag_img_filter
= PIPE_TEX_FILTER_NEAREST
;
376 sampler
.compare_mode
= PIPE_TEX_COMPARE_NONE
;
377 sampler
.compare_func
= PIPE_FUNC_ALWAYS
;
378 sampler
.normalized_coords
= 1;
379 /*sampler.shadow_ambient = ; */
380 /*sampler.lod_bias = ; */
382 /*sampler.max_lod = ; */
383 /*sampler.border_color[0] = ; */
384 /*sampler.max_anisotropy = ; */
385 idct
->samplers
.all
[i
] = idct
->pipe
->create_sampler_state(idct
->pipe
, &sampler
);
388 memset(&rs_state
, 0, sizeof(rs_state
));
389 /*rs_state.sprite_coord_enable */
390 rs_state
.sprite_coord_mode
= PIPE_SPRITE_COORD_UPPER_LEFT
;
391 rs_state
.point_quad_rasterization
= true;
392 rs_state
.point_size
= BLOCK_WIDTH
;
393 rs_state
.gl_rasterization_rules
= false;
394 idct
->rs_state
= idct
->pipe
->create_rasterizer_state(idct
->pipe
, &rs_state
);
396 vertex_elems
[VS_I_RECT
] = vl_vb_get_quad_vertex_element();
399 vertex_elems
[VS_I_VPOS
].src_format
= PIPE_FORMAT_R32G32_FLOAT
;
401 idct
->vertex_buffer_stride
= vl_vb_element_helper(&vertex_elems
[VS_I_VPOS
], 1, 1);
402 idct
->vertex_elems_state
= idct
->pipe
->create_vertex_elements_state(idct
->pipe
, 2, vertex_elems
);
408 cleanup_state(struct vl_idct
*idct
)
412 for (i
= 0; i
< 4; ++i
)
413 idct
->pipe
->delete_sampler_state(idct
->pipe
, idct
->samplers
.all
[i
]);
415 idct
->pipe
->delete_rasterizer_state(idct
->pipe
, idct
->rs_state
);
416 idct
->pipe
->delete_vertex_elements_state(idct
->pipe
, idct
->vertex_elems_state
);
420 init_textures(struct vl_idct
*idct
, struct vl_idct_buffer
*buffer
)
422 struct pipe_resource
template;
423 struct pipe_sampler_view sampler_view
;
426 assert(idct
&& buffer
);
428 /* create textures */
429 memset(&template, 0, sizeof(struct pipe_resource
));
430 template.last_level
= 0;
432 template.bind
= PIPE_BIND_SAMPLER_VIEW
;
435 template.target
= PIPE_TEXTURE_2D
;
436 template.format
= PIPE_FORMAT_R16G16B16A16_SNORM
;
437 template.width0
= idct
->buffer_width
/ 4;
438 template.height0
= idct
->buffer_height
;
440 template.usage
= PIPE_USAGE_STREAM
;
441 buffer
->textures
.individual
.source
= idct
->pipe
->screen
->resource_create(idct
->pipe
->screen
, &template);
443 template.target
= PIPE_TEXTURE_3D
;
444 template.format
= PIPE_FORMAT_R16G16B16A16_SNORM
;
445 template.width0
= idct
->buffer_width
/ NR_RENDER_TARGETS
;
446 template.height0
= idct
->buffer_height
/ 4;
447 template.depth0
= NR_RENDER_TARGETS
;
448 template.usage
= PIPE_USAGE_STATIC
;
449 buffer
->textures
.individual
.intermediate
= idct
->pipe
->screen
->resource_create(idct
->pipe
->screen
, &template);
451 for (i
= 0; i
< 4; ++i
) {
452 if(buffer
->textures
.all
[i
] == NULL
)
453 return false; /* a texture failed to allocate */
455 u_sampler_view_default_template(&sampler_view
, buffer
->textures
.all
[i
], buffer
->textures
.all
[i
]->format
);
456 buffer
->sampler_views
.all
[i
] = idct
->pipe
->create_sampler_view(idct
->pipe
, buffer
->textures
.all
[i
], &sampler_view
);
463 cleanup_textures(struct vl_idct
*idct
, struct vl_idct_buffer
*buffer
)
467 assert(idct
&& buffer
);
469 for (i
= 0; i
< 4; ++i
) {
470 pipe_sampler_view_reference(&buffer
->sampler_views
.all
[i
], NULL
);
471 pipe_resource_reference(&buffer
->textures
.all
[i
], NULL
);
476 init_vertex_buffers(struct vl_idct
*idct
, struct vl_idct_buffer
*buffer
)
478 assert(idct
&& buffer
);
480 buffer
->vertex_bufs
.individual
.quad
.stride
= idct
->quad
.stride
;
481 buffer
->vertex_bufs
.individual
.quad
.max_index
= idct
->quad
.max_index
;
482 buffer
->vertex_bufs
.individual
.quad
.buffer_offset
= idct
->quad
.buffer_offset
;
483 pipe_resource_reference(&buffer
->vertex_bufs
.individual
.quad
.buffer
, idct
->quad
.buffer
);
485 buffer
->vertex_bufs
.individual
.pos
= vl_vb_init(
486 &buffer
->blocks
, idct
->pipe
, idct
->max_blocks
, 2,
487 idct
->vertex_buffer_stride
);
489 if(buffer
->vertex_bufs
.individual
.pos
.buffer
== NULL
)
496 cleanup_vertex_buffers(struct vl_idct
*idct
, struct vl_idct_buffer
*buffer
)
498 assert(idct
&& buffer
);
500 pipe_resource_reference(&buffer
->vertex_bufs
.individual
.quad
.buffer
, NULL
);
501 pipe_resource_reference(&buffer
->vertex_bufs
.individual
.pos
.buffer
, NULL
);
503 vl_vb_cleanup(&buffer
->blocks
);
506 struct pipe_resource
*
507 vl_idct_upload_matrix(struct pipe_context
*pipe
)
509 struct pipe_resource
template, *matrix
;
510 struct pipe_transfer
*buf_transfer
;
511 unsigned i
, j
, pitch
;
514 struct pipe_box rect
=
522 memset(&template, 0, sizeof(struct pipe_resource
));
523 template.target
= PIPE_TEXTURE_2D
;
524 template.format
= PIPE_FORMAT_R32G32B32A32_FLOAT
;
525 template.last_level
= 0;
527 template.height0
= 8;
529 template.usage
= PIPE_USAGE_IMMUTABLE
;
530 template.bind
= PIPE_BIND_SAMPLER_VIEW
;
533 matrix
= pipe
->screen
->resource_create(pipe
->screen
, &template);
536 buf_transfer
= pipe
->get_transfer
539 0, PIPE_TRANSFER_WRITE
| PIPE_TRANSFER_DISCARD
,
542 pitch
= buf_transfer
->stride
/ sizeof(float);
544 f
= pipe
->transfer_map(pipe
, buf_transfer
);
545 for(i
= 0; i
< BLOCK_HEIGHT
; ++i
)
546 for(j
= 0; j
< BLOCK_WIDTH
; ++j
)
547 // transpose and scale
548 f
[i
* pitch
+ j
] = const_matrix
[j
][i
] * sqrtf(SCALE_FACTOR_16_TO_9
);
550 pipe
->transfer_unmap(pipe
, buf_transfer
);
551 pipe
->transfer_destroy(pipe
, buf_transfer
);
556 bool vl_idct_init(struct vl_idct
*idct
, struct pipe_context
*pipe
,
557 unsigned buffer_width
, unsigned buffer_height
,
558 struct pipe_resource
*matrix
)
560 assert(idct
&& pipe
&& matrix
);
563 idct
->buffer_width
= buffer_width
;
564 idct
->buffer_height
= buffer_height
;
565 pipe_resource_reference(&idct
->matrix
, matrix
);
568 align(buffer_width
, BLOCK_WIDTH
) / BLOCK_WIDTH
*
569 align(buffer_height
, BLOCK_HEIGHT
) / BLOCK_HEIGHT
;
571 if(!init_shaders(idct
))
574 if(!init_state(idct
)) {
575 cleanup_shaders(idct
);
583 vl_idct_cleanup(struct vl_idct
*idct
)
585 cleanup_shaders(idct
);
588 pipe_resource_reference(&idct
->matrix
, NULL
);
592 vl_idct_init_buffer(struct vl_idct
*idct
, struct vl_idct_buffer
*buffer
, struct pipe_resource
*dst
)
594 struct pipe_surface
template;
602 pipe_resource_reference(&buffer
->textures
.individual
.matrix
, idct
->matrix
);
603 pipe_resource_reference(&buffer
->textures
.individual
.transpose
, idct
->matrix
);
604 pipe_resource_reference(&buffer
->destination
, dst
);
606 if (!init_textures(idct
, buffer
))
609 if (!init_vertex_buffers(idct
, buffer
))
613 buffer
->viewport
[0].scale
[0] = buffer
->textures
.individual
.intermediate
->width0
;
614 buffer
->viewport
[0].scale
[1] = buffer
->textures
.individual
.intermediate
->height0
;
616 buffer
->viewport
[1].scale
[0] = buffer
->destination
->width0
;
617 buffer
->viewport
[1].scale
[1] = buffer
->destination
->height0
;
619 buffer
->fb_state
[0].width
= buffer
->textures
.individual
.intermediate
->width0
;
620 buffer
->fb_state
[0].height
= buffer
->textures
.individual
.intermediate
->height0
;
622 buffer
->fb_state
[0].nr_cbufs
= NR_RENDER_TARGETS
;
623 for(i
= 0; i
< NR_RENDER_TARGETS
; ++i
) {
624 memset(&template, 0, sizeof(template));
625 template.format
= buffer
->textures
.individual
.intermediate
->format
;
626 template.u
.tex
.first_layer
= i
;
627 template.u
.tex
.last_layer
= i
;
628 template.usage
= PIPE_BIND_RENDER_TARGET
;
629 buffer
->fb_state
[0].cbufs
[i
] = idct
->pipe
->create_surface(
630 idct
->pipe
, buffer
->textures
.individual
.intermediate
,
634 buffer
->fb_state
[1].width
= buffer
->destination
->width0
;
635 buffer
->fb_state
[1].height
= buffer
->destination
->height0
;
637 buffer
->fb_state
[1].nr_cbufs
= 1;
639 memset(&template, 0, sizeof(template));
640 template.format
= buffer
->destination
->format
;
641 template.usage
= PIPE_BIND_RENDER_TARGET
;
642 buffer
->fb_state
[1].cbufs
[0] = idct
->pipe
->create_surface(
643 idct
->pipe
, buffer
->destination
, &template);
645 for(i
= 0; i
< 2; ++i
) {
646 buffer
->viewport
[i
].scale
[2] = 1;
647 buffer
->viewport
[i
].scale
[3] = 1;
648 buffer
->viewport
[i
].translate
[0] = 0;
649 buffer
->viewport
[i
].translate
[1] = 0;
650 buffer
->viewport
[i
].translate
[2] = 0;
651 buffer
->viewport
[i
].translate
[3] = 0;
653 buffer
->fb_state
[i
].zsbuf
= NULL
;
660 vl_idct_cleanup_buffer(struct vl_idct
*idct
, struct vl_idct_buffer
*buffer
)
666 for(i
= 0; i
< NR_RENDER_TARGETS
; ++i
) {
667 idct
->pipe
->surface_destroy(idct
->pipe
, buffer
->fb_state
[0].cbufs
[i
]);
670 idct
->pipe
->surface_destroy(idct
->pipe
, buffer
->fb_state
[1].cbufs
[0]);
672 cleanup_textures(idct
, buffer
);
673 cleanup_vertex_buffers(idct
, buffer
);
677 vl_idct_map_buffers(struct vl_idct
*idct
, struct vl_idct_buffer
*buffer
)
681 struct pipe_box rect
=
684 buffer
->textures
.individual
.source
->width0
,
685 buffer
->textures
.individual
.source
->height0
,
689 buffer
->tex_transfer
= idct
->pipe
->get_transfer
691 idct
->pipe
, buffer
->textures
.individual
.source
,
692 0, PIPE_TRANSFER_WRITE
| PIPE_TRANSFER_DISCARD
,
696 buffer
->texels
= idct
->pipe
->transfer_map(idct
->pipe
, buffer
->tex_transfer
);
698 vl_vb_map(&buffer
->blocks
, idct
->pipe
);
702 vl_idct_add_block(struct vl_idct_buffer
*buffer
, unsigned x
, unsigned y
, short *block
)
712 tex_pitch
= buffer
->tex_transfer
->stride
/ sizeof(short);
713 texels
= buffer
->texels
+ y
* tex_pitch
* BLOCK_HEIGHT
+ x
* BLOCK_WIDTH
;
715 for (i
= 0; i
< BLOCK_HEIGHT
; ++i
)
716 memcpy(texels
+ i
* tex_pitch
, block
+ i
* BLOCK_WIDTH
, BLOCK_WIDTH
* sizeof(short));
720 vl_vb_add_block(&buffer
->blocks
, (float*)&v
);
724 vl_idct_unmap_buffers(struct vl_idct
*idct
, struct vl_idct_buffer
*buffer
)
726 assert(idct
&& buffer
);
728 idct
->pipe
->transfer_unmap(idct
->pipe
, buffer
->tex_transfer
);
729 idct
->pipe
->transfer_destroy(idct
->pipe
, buffer
->tex_transfer
);
730 vl_vb_unmap(&buffer
->blocks
, idct
->pipe
);
734 vl_idct_flush(struct vl_idct
*idct
, struct vl_idct_buffer
*buffer
)
740 num_verts
= vl_vb_restart(&buffer
->blocks
);
744 idct
->pipe
->bind_rasterizer_state(idct
->pipe
, idct
->rs_state
);
745 idct
->pipe
->set_vertex_buffers(idct
->pipe
, 2, buffer
->vertex_bufs
.all
);
746 idct
->pipe
->bind_vertex_elements_state(idct
->pipe
, idct
->vertex_elems_state
);
749 idct
->pipe
->set_framebuffer_state(idct
->pipe
, &buffer
->fb_state
[0]);
750 idct
->pipe
->set_viewport_state(idct
->pipe
, &buffer
->viewport
[0]);
751 idct
->pipe
->set_fragment_sampler_views(idct
->pipe
, 2, buffer
->sampler_views
.stage
[0]);
752 idct
->pipe
->bind_fragment_sampler_states(idct
->pipe
, 2, idct
->samplers
.stage
[0]);
753 idct
->pipe
->bind_vs_state(idct
->pipe
, idct
->matrix_vs
);
754 idct
->pipe
->bind_fs_state(idct
->pipe
, idct
->matrix_fs
);
755 util_draw_arrays(idct
->pipe
, PIPE_PRIM_QUADS
, 0, num_verts
);
758 idct
->pipe
->set_framebuffer_state(idct
->pipe
, &buffer
->fb_state
[1]);
759 idct
->pipe
->set_viewport_state(idct
->pipe
, &buffer
->viewport
[1]);
760 idct
->pipe
->set_fragment_sampler_views(idct
->pipe
, 2, buffer
->sampler_views
.stage
[1]);
761 idct
->pipe
->bind_fragment_sampler_states(idct
->pipe
, 2, idct
->samplers
.stage
[1]);
762 idct
->pipe
->bind_vs_state(idct
->pipe
, idct
->transpose_vs
);
763 idct
->pipe
->bind_fs_state(idct
->pipe
, idct
->transpose_fs
);
764 util_draw_arrays(idct
->pipe
, PIPE_PRIM_QUADS
, 0, num_verts
);