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
35void
36i915_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   if(!i915_winsys_validate_buffers(i915->batch, &dst_buffer, 1)) {
53      FLUSH_BATCH(NULL);
54      assert(i915_winsys_validate_buffers(i915->batch, &dst_buffer, 1));
55   }
56
57   switch (cpp) {
58   case 1:
59   case 2:
60   case 3:
61      BR13 = (((int) dst_pitch) & 0xffff) |
62         (0xF0 << 16) | (1 << 24);
63      CMD = XY_COLOR_BLT_CMD;
64      break;
65   case 4:
66      BR13 = (((int) dst_pitch) & 0xffff) |
67         (0xF0 << 16) | (1 << 24) | (1 << 25);
68      CMD = (XY_COLOR_BLT_CMD | rgba_mask);
69      break;
70   default:
71      return;
72   }
73
74   if (!BEGIN_BATCH(6)) {
75      FLUSH_BATCH(NULL);
76      assert(BEGIN_BATCH(6));
77   }
78   OUT_BATCH(CMD);
79   OUT_BATCH(BR13);
80   OUT_BATCH((y << 16) | x);
81   OUT_BATCH(((y + h) << 16) | (x + w));
82   OUT_RELOC_FENCED(dst_buffer, I915_USAGE_2D_TARGET, dst_offset);
83   OUT_BATCH(color);
84
85   i915_set_flush_dirty(i915, I915_FLUSH_CACHE);
86}
87
88void
89i915_copy_blit(struct i915_context *i915,
90               unsigned cpp,
91               unsigned short src_pitch,
92               struct i915_winsys_buffer *src_buffer,
93               unsigned src_offset,
94               unsigned short dst_pitch,
95               struct i915_winsys_buffer *dst_buffer,
96               unsigned dst_offset,
97               short src_x, short src_y,
98               short dst_x, short dst_y,
99               short w, short h)
100{
101   unsigned CMD, BR13;
102   int dst_y2 = dst_y + h;
103   int dst_x2 = dst_x + w;
104   struct i915_winsys_buffer *buffers[2] = {src_buffer, dst_buffer};
105
106
107   I915_DBG(DBG_BLIT,
108            "%s src:buf(%p)/%d+%d %d,%d dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
109            __FUNCTION__,
110            src_buffer, src_pitch, src_offset, src_x, src_y,
111            dst_buffer, dst_pitch, dst_offset, dst_x, dst_y, w, h);
112
113   if(!i915_winsys_validate_buffers(i915->batch, buffers, 2)) {
114      FLUSH_BATCH(NULL);
115      assert(i915_winsys_validate_buffers(i915->batch, buffers, 2));
116   }
117
118   switch (cpp) {
119   case 1:
120   case 2:
121   case 3:
122      BR13 = (((int) dst_pitch) & 0xffff) |
123         (0xCC << 16) | (1 << 24);
124      CMD = XY_SRC_COPY_BLT_CMD;
125      break;
126   case 4:
127      BR13 = (((int) dst_pitch) & 0xffff) |
128             (0xCC << 16) | (1 << 24) | (1 << 25);
129      CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
130            XY_SRC_COPY_BLT_WRITE_RGB);
131      break;
132   default:
133      return;
134   }
135
136   if (dst_y2 < dst_y || dst_x2 < dst_x) {
137      return;
138   }
139
140   /* Hardware can handle negative pitches but loses the ability to do
141    * proper overlapping blits in that case.  We don't really have a
142    * need for either at this stage.
143    */
144   assert (dst_pitch > 0 && src_pitch > 0);
145
146   if (!BEGIN_BATCH(8)) {
147      FLUSH_BATCH(NULL);
148      assert(BEGIN_BATCH(8));
149   }
150   OUT_BATCH(CMD);
151   OUT_BATCH(BR13);
152   OUT_BATCH((dst_y << 16) | dst_x);
153   OUT_BATCH((dst_y2 << 16) | dst_x2);
154   OUT_RELOC_FENCED(dst_buffer, I915_USAGE_2D_TARGET, dst_offset);
155   OUT_BATCH((src_y << 16) | src_x);
156   OUT_BATCH(((int) src_pitch & 0xffff));
157   OUT_RELOC_FENCED(src_buffer, I915_USAGE_2D_SOURCE, src_offset);
158
159   i915_set_flush_dirty(i915, I915_FLUSH_CACHE);
160}
161