1 /**************************************************************************
3 * Copyright © 2010 Jakob Bornecrantz
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
24 **************************************************************************/
28 #include "i915_context.h"
29 #include "i915_state.h"
30 #include "i915_resource.h"
31 #include "i915_screen.h"
34 /***********************************************************************
35 * Update framebuffer state
37 static unsigned translate_format(enum pipe_format format
)
40 case PIPE_FORMAT_B8G8R8A8_UNORM
:
41 case PIPE_FORMAT_B8G8R8A8_SRGB
:
42 case PIPE_FORMAT_B8G8R8X8_UNORM
:
43 case PIPE_FORMAT_R8G8B8A8_UNORM
:
44 case PIPE_FORMAT_R8G8B8X8_UNORM
:
45 return COLOR_BUF_ARGB8888
;
46 case PIPE_FORMAT_B5G6R5_UNORM
:
47 return COLOR_BUF_RGB565
;
48 case PIPE_FORMAT_B5G5R5A1_UNORM
:
49 return COLOR_BUF_ARGB1555
;
50 case PIPE_FORMAT_B4G4R4A4_UNORM
:
51 return COLOR_BUF_ARGB4444
;
52 case PIPE_FORMAT_B10G10R10A2_UNORM
:
53 return COLOR_BUF_ARGB2101010
;
54 case PIPE_FORMAT_L8_UNORM
:
55 case PIPE_FORMAT_A8_UNORM
:
56 case PIPE_FORMAT_I8_UNORM
:
57 return COLOR_BUF_8BIT
;
64 static unsigned translate_depth_format(enum pipe_format zformat
)
67 case PIPE_FORMAT_Z24X8_UNORM
:
68 case PIPE_FORMAT_Z24_UNORM_S8_UINT
:
69 return DEPTH_FRMT_24_FIXED_8_OTHER
;
70 case PIPE_FORMAT_Z16_UNORM
:
71 return DEPTH_FRMT_16_FIXED
;
78 static inline uint32_t
79 buf_3d_tiling_bits(enum i915_winsys_buffer_tile tiling
)
81 uint32_t tiling_bits
= 0;
85 tiling_bits
|= BUF_3D_TILE_WALK_Y
;
87 tiling_bits
|= BUF_3D_TILED_SURFACE
;
95 static void update_framebuffer(struct i915_context
*i915
)
97 struct pipe_surface
*cbuf_surface
= i915
->framebuffer
.cbufs
[0];
98 struct pipe_surface
*depth_surface
= i915
->framebuffer
.zsbuf
;
101 uint32_t draw_offset
, draw_size
;
104 struct i915_texture
*tex
= i915_texture(cbuf_surface
->texture
);
107 i915
->current
.cbuf_bo
= tex
->buffer
;
108 i915
->current
.cbuf_flags
= BUF_3D_ID_COLOR_BACK
|
109 BUF_3D_PITCH(tex
->stride
) | /* pitch in bytes */
110 buf_3d_tiling_bits(tex
->tiling
);
112 layer
= cbuf_surface
->u
.tex
.first_layer
;
114 x
= tex
->image_offset
[cbuf_surface
->u
.tex
.level
][layer
].nblocksx
;
115 y
= tex
->image_offset
[cbuf_surface
->u
.tex
.level
][layer
].nblocksy
;
117 i915
->current
.cbuf_bo
= NULL
;
120 i915
->static_dirty
|= I915_DST_BUF_COLOR
;
122 /* What happens if no zbuf??
125 struct i915_texture
*tex
= i915_texture(depth_surface
->texture
);
126 unsigned offset
= i915_texture_offset(tex
, depth_surface
->u
.tex
.level
,
127 depth_surface
->u
.tex
.first_layer
);
130 debug_printf("Depth offset is %d\n",offset
);
132 i915
->current
.depth_bo
= tex
->buffer
;
133 i915
->current
.depth_flags
= BUF_3D_ID_DEPTH
|
134 BUF_3D_PITCH(tex
->stride
) | /* pitch in bytes */
135 buf_3d_tiling_bits(tex
->tiling
);
137 i915
->current
.depth_bo
= NULL
;
138 i915
->static_dirty
|= I915_DST_BUF_DEPTH
;
140 /* drawing rect calculations */
141 draw_offset
= x
| (y
<< 16);
142 draw_size
= (i915
->framebuffer
.width
- 1 + x
) |
143 ((i915
->framebuffer
.height
- 1 + y
) << 16);
144 if (i915
->current
.draw_offset
!= draw_offset
) {
145 i915
->current
.draw_offset
= draw_offset
;
146 i915_set_flush_dirty(i915
, I915_PIPELINE_FLUSH
);
147 i915
->static_dirty
|= I915_DST_RECT
;
149 if (i915
->current
.draw_size
!= draw_size
) {
150 i915
->current
.draw_size
= draw_size
;
151 i915
->static_dirty
|= I915_DST_RECT
;
154 i915
->hardware_dirty
|= I915_HW_STATIC
;
156 /* flush the cache in case we sample from the old renderbuffers */
157 i915_set_flush_dirty(i915
, I915_FLUSH_CACHE
);
160 struct i915_tracked_state i915_hw_framebuffer
= {
166 static uint32_t need_target_fixup(struct pipe_surface
* p
, uint32_t *fixup
)
170 enum pipe_format format
;
172 } fixup_formats
[] = {
173 { PIPE_FORMAT_R8G8B8A8_UNORM
, 0x21030000 /* BGRA */},
174 { PIPE_FORMAT_R8G8B8X8_UNORM
, 0x21030000 /* BGRX */},
175 { PIPE_FORMAT_L8_UNORM
, 0x00030000 /* RRRA */},
176 { PIPE_FORMAT_I8_UNORM
, 0x00030000 /* RRRA */},
177 { PIPE_FORMAT_A8_UNORM
, 0x33330000 /* AAAA */},
178 { PIPE_FORMAT_NONE
, 0x00000000},
182 /* if we don't have a surface bound yet, we don't need to fixup the shader */
187 for(int i
= 0; fixup_formats
[i
].format
!= PIPE_FORMAT_NONE
; i
++)
188 if (fixup_formats
[i
].format
== f
) {
189 *fixup
= fixup_formats
[i
].hw_swizzle
;
197 static void update_dst_buf_vars(struct i915_context
*i915
)
199 struct pipe_surface
*cbuf_surface
= i915
->framebuffer
.cbufs
[0];
200 struct pipe_surface
*depth_surface
= i915
->framebuffer
.zsbuf
;
201 uint32_t dst_buf_vars
, cformat
, zformat
;
202 uint32_t early_z
= 0;
207 cformat
= cbuf_surface
->format
;
209 cformat
= PIPE_FORMAT_B8G8R8A8_UNORM
; /* arbitrary */
210 cformat
= translate_format(cformat
);
213 struct i915_texture
*tex
= i915_texture(depth_surface
->texture
);
214 struct i915_screen
*is
= i915_screen(i915
->base
.screen
);
216 zformat
= translate_depth_format(depth_surface
->format
);
218 if (is
->is_i945
&& tex
->tiling
!= I915_TILE_NONE
219 && !i915
->fs
->info
.writes_z
)
220 early_z
= CLASSIC_EARLY_DEPTH
;
224 dst_buf_vars
= DSTORG_HORT_BIAS(0x8) | /* .5 */
225 DSTORG_VERT_BIAS(0x8) | /* .5 */
227 TEX_DEFAULT_COLOR_OGL
|
232 if (i915
->current
.dst_buf_vars
!= dst_buf_vars
) {
233 if (early_z
!= (i915
->current
.dst_buf_vars
& CLASSIC_EARLY_DEPTH
))
234 i915_set_flush_dirty(i915
, I915_PIPELINE_FLUSH
);
236 i915
->current
.dst_buf_vars
= dst_buf_vars
;
237 i915
->static_dirty
|= I915_DST_VARS
;
238 i915
->hardware_dirty
|= I915_HW_STATIC
;
241 need_fixup
= need_target_fixup(cbuf_surface
, &fixup
);
242 if (i915
->current
.target_fixup_format
!= need_fixup
||
243 i915
->current
.fixup_swizzle
!= fixup
) {
244 i915
->current
.target_fixup_format
= need_fixup
;
245 i915
->current
.fixup_swizzle
= fixup
;
246 /* we also send a new program to make sure the fixup for RGBA surfaces happens */
247 i915
->hardware_dirty
|= I915_HW_PROGRAM
;
251 struct i915_tracked_state i915_hw_dst_buf_vars
= {
254 I915_NEW_FRAMEBUFFER
| I915_NEW_FS