1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/*
* Copyright 2009 Marek Olšák <maraeo@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "r300_blit.h"
#include "r300_context.h"
#include "r300_texture.h"
#include "util/u_format.h"
static void r300_blitter_save_states(struct r300_context* r300)
{
util_blitter_save_blend(r300->blitter, r300->blend_state.state);
util_blitter_save_depth_stencil_alpha(r300->blitter, r300->dsa_state.state);
util_blitter_save_stencil_ref(r300->blitter, &(r300->stencil_ref));
util_blitter_save_rasterizer(r300->blitter, r300->rs_state.state);
util_blitter_save_fragment_shader(r300->blitter, r300->fs);
util_blitter_save_vertex_shader(r300->blitter, r300->vs);
util_blitter_save_vertex_elements(r300->blitter, r300->vs);
}
/* Clear currently bound buffers. */
void r300_clear(struct pipe_context* pipe,
unsigned buffers,
const float* rgba,
double depth,
unsigned stencil)
{
/* XXX Implement fastfill.
*
* If fastfill is enabled, a few facts should be considered:
*
* 1) Zbuffer must be micro-tiled and whole microtiles must be
* written.
*
* 2) ZB_DEPTHCLEARVALUE is used to clear a zbuffer and Z Mask must be
* equal to 0.
*
* 3) RB3D_COLOR_CLEAR_VALUE is used to clear a colorbuffer and
* RB3D_COLOR_CHANNEL_MASK must be equal to 0.
*
* 4) ZB_CB_CLEAR can be used to make the ZB units help in clearing
* the colorbuffer. The color clear value is supplied through both
* RB3D_COLOR_CLEAR_VALUE and ZB_DEPTHCLEARVALUE, and the colorbuffer
* must be set in ZB_DEPTHOFFSET and ZB_DEPTHPITCH in addition to
* RB3D_COLOROFFSET and RB3D_COLORPITCH. It's obvious that the zbuffer
* will not be cleared and multiple render targets cannot be cleared
* this way either.
*
* 5) For 16-bit integer buffering, compression causes a hung with one or
* two samples and should not be used.
*
* 6) Fastfill must not be used if reading of compressed Z data is disabled
* and writing of compressed Z data is enabled (RD/WR_COMP_ENABLE),
* i.e. it cannot be used to compress the zbuffer.
* (what the hell does that mean and how does it fit in clearing
* the buffers?)
*
* - Marek
*/
struct r300_context* r300 = r300_context(pipe);
struct pipe_framebuffer_state* fb =
(struct pipe_framebuffer_state*)r300->fb_state.state;
r300_blitter_save_states(r300);
util_blitter_clear(r300->blitter,
fb->width,
fb->height,
fb->nr_cbufs,
buffers, rgba, depth, stencil);
}
/* Copy a block of pixels from one surface to another using HW. */
static void r300_hw_copy(struct pipe_context* pipe,
struct pipe_surface* dst,
unsigned dstx, unsigned dsty,
struct pipe_surface* src,
unsigned srcx, unsigned srcy,
unsigned width, unsigned height)
{
struct r300_context* r300 = r300_context(pipe);
/* Yeah we have to save all those states to ensure this blitter operation
* is really transparent. The states will be restored by the blitter once
* copying is done. */
r300_blitter_save_states(r300);
util_blitter_save_framebuffer(r300->blitter, r300->fb_state.state);
util_blitter_save_fragment_sampler_states(
r300->blitter, r300->sampler_count, (void**)r300->sampler_states);
util_blitter_save_fragment_sampler_textures(
r300->blitter, r300->texture_count,
(struct pipe_texture**)r300->textures);
/* Do a copy */
util_blitter_copy(r300->blitter,
dst, dstx, dsty, src, srcx, srcy, width, height, TRUE);
}
/* Copy a block of pixels from one surface to another. */
void r300_surface_copy(struct pipe_context* pipe,
struct pipe_surface* dst,
unsigned dstx, unsigned dsty,
struct pipe_surface* src,
unsigned srcx, unsigned srcy,
unsigned width, unsigned height)
{
enum pipe_format old_format = dst->texture->format;
enum pipe_format new_format = old_format;
assert(dst->texture->format == src->texture->format);
if (!pipe->screen->is_format_supported(pipe->screen,
old_format, src->texture->target,
PIPE_TEXTURE_USAGE_RENDER_TARGET |
PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
switch (util_format_get_blocksize(old_format)) {
case 1:
new_format = PIPE_FORMAT_I8_UNORM;
break;
case 2:
new_format = PIPE_FORMAT_A4R4G4B4_UNORM;
break;
case 4:
new_format = PIPE_FORMAT_A8R8G8B8_UNORM;
break;
default:
debug_printf("r300: surface_copy: Unhandled format: %s. Falling back to software.\n"
"r300: surface_copy: Software fallback doesn't work for tiled textures.\n",
util_format_name(old_format));
}
}
if (old_format != new_format) {
dst->format = new_format;
src->format = new_format;
r300_texture_reinterpret_format(pipe->screen,
dst->texture, new_format);
r300_texture_reinterpret_format(pipe->screen,
src->texture, new_format);
}
r300_hw_copy(pipe, dst, dstx, dsty, src, srcx, srcy, width, height);
if (old_format != new_format) {
dst->format = old_format;
src->format = old_format;
r300_texture_reinterpret_format(pipe->screen,
dst->texture, old_format);
r300_texture_reinterpret_format(pipe->screen,
src->texture, old_format);
}
}
/* Fill a region of a surface with a constant value. */
void r300_surface_fill(struct pipe_context* pipe,
struct pipe_surface* dst,
unsigned dstx, unsigned dsty,
unsigned width, unsigned height,
unsigned value)
{
struct r300_context* r300 = r300_context(pipe);
r300_blitter_save_states(r300);
util_blitter_save_framebuffer(r300->blitter, r300->fb_state.state);
util_blitter_fill(r300->blitter,
dst, dstx, dsty, width, height, value);
}
|
