Merge remote branch 'vdpau/pipe-video' into pipe-video
[mesa.git] / src / gallium / drivers / i915 / i915_blit.c
1 /**************************************************************************
2 *
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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.
25 *
26 **************************************************************************/
27
28
29 #include "i915_blit.h"
30 #include "i915_reg.h"
31 #include "i915_batch.h"
32 #include "i915_debug.h"
33
34
35 void
36 i915_fill_blit(struct i915_context *i915,
37 unsigned cpp,
38 unsigned rgba_mask,
39 unsigned short dst_pitch,
40 struct i915_winsys_buffer *dst_buffer,
41 unsigned dst_offset,
42 short x, short y,
43 short w, short h,
44 unsigned color)
45 {
46 unsigned BR13, CMD;
47
48
49 I915_DBG(DBG_BLIT, "%s dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
50 __FUNCTION__, dst_buffer, dst_pitch, dst_offset, x, y, w, h);
51
52 switch (cpp) {
53 case 1:
54 case 2:
55 case 3:
56 BR13 = (((int) dst_pitch) & 0xffff) |
57 (0xF0 << 16) | (1 << 24);
58 CMD = XY_COLOR_BLT_CMD;
59 break;
60 case 4:
61 BR13 = (((int) dst_pitch) & 0xffff) |
62 (0xF0 << 16) | (1 << 24) | (1 << 25);
63 CMD = (XY_COLOR_BLT_CMD | rgba_mask);
64 break;
65 default:
66 return;
67 }
68
69 if (!BEGIN_BATCH(6, 1)) {
70 FLUSH_BATCH(NULL);
71 assert(BEGIN_BATCH(6, 1));
72 }
73 OUT_BATCH(CMD);
74 OUT_BATCH(BR13);
75 OUT_BATCH((y << 16) | x);
76 OUT_BATCH(((y + h) << 16) | (x + w));
77 OUT_RELOC_FENCED(dst_buffer, I915_USAGE_2D_TARGET, dst_offset);
78 OUT_BATCH(color);
79 }
80
81 void
82 i915_copy_blit(struct i915_context *i915,
83 unsigned cpp,
84 unsigned short src_pitch,
85 struct i915_winsys_buffer *src_buffer,
86 unsigned src_offset,
87 unsigned short dst_pitch,
88 struct i915_winsys_buffer *dst_buffer,
89 unsigned dst_offset,
90 short src_x, short src_y,
91 short dst_x, short dst_y,
92 short w, short h)
93 {
94 unsigned CMD, BR13;
95 int dst_y2 = dst_y + h;
96 int dst_x2 = dst_x + w;
97
98
99 I915_DBG(DBG_BLIT,
100 "%s src:buf(%p)/%d+%d %d,%d dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
101 __FUNCTION__,
102 src_buffer, src_pitch, src_offset, src_x, src_y,
103 dst_buffer, dst_pitch, dst_offset, dst_x, dst_y, w, h);
104
105 switch (cpp) {
106 case 1:
107 case 2:
108 case 3:
109 BR13 = (((int) dst_pitch) & 0xffff) |
110 (0xCC << 16) | (1 << 24);
111 CMD = XY_SRC_COPY_BLT_CMD;
112 break;
113 case 4:
114 BR13 = (((int) dst_pitch) & 0xffff) |
115 (0xCC << 16) | (1 << 24) | (1 << 25);
116 CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
117 XY_SRC_COPY_BLT_WRITE_RGB);
118 break;
119 default:
120 return;
121 }
122
123 if (dst_y2 < dst_y || dst_x2 < dst_x) {
124 return;
125 }
126
127 /* Hardware can handle negative pitches but loses the ability to do
128 * proper overlapping blits in that case. We don't really have a
129 * need for either at this stage.
130 */
131 assert (dst_pitch > 0 && src_pitch > 0);
132
133 if (!BEGIN_BATCH(8, 2)) {
134 FLUSH_BATCH(NULL);
135 assert(BEGIN_BATCH(8, 2));
136 }
137 OUT_BATCH(CMD);
138 OUT_BATCH(BR13);
139 OUT_BATCH((dst_y << 16) | dst_x);
140 OUT_BATCH((dst_y2 << 16) | dst_x2);
141 OUT_RELOC_FENCED(dst_buffer, I915_USAGE_2D_TARGET, dst_offset);
142 OUT_BATCH((src_y << 16) | src_x);
143 OUT_BATCH(((int) src_pitch & 0xffff));
144 OUT_RELOC_FENCED(src_buffer, I915_USAGE_2D_SOURCE, src_offset);
145 }