1 /**************************************************************************
2  *
3  * Copyright 2003 VMware, Inc.
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 VMWARE 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 #include "i915_blit.h"
29 #include "i915_batch.h"
30 #include "i915_debug.h"
31 #include "i915_reg.h"
32 
33 void
i915_fill_blit(struct i915_context * i915,unsigned cpp,unsigned rgba_mask,unsigned short dst_pitch,struct i915_winsys_buffer * dst_buffer,unsigned dst_offset,short x,short y,short w,short h,unsigned color)34 i915_fill_blit(struct i915_context *i915, unsigned cpp, unsigned rgba_mask,
35                unsigned short dst_pitch, struct i915_winsys_buffer *dst_buffer,
36                unsigned dst_offset, short x, short y, short w, short h,
37                unsigned color)
38 {
39    unsigned BR13, CMD;
40 
41    I915_DBG(DBG_BLIT, "%s dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n", __FUNCTION__,
42             dst_buffer, dst_pitch, dst_offset, x, y, w, h);
43 
44    if (!i915_winsys_validate_buffers(i915->batch, &dst_buffer, 1)) {
45       FLUSH_BATCH(NULL, I915_FLUSH_ASYNC);
46       assert(i915_winsys_validate_buffers(i915->batch, &dst_buffer, 1));
47    }
48 
49    switch (cpp) {
50    case 1:
51    case 2:
52    case 3:
53       BR13 = (((int)dst_pitch) & 0xffff) | (0xF0 << 16) | (1 << 24);
54       CMD = XY_COLOR_BLT_CMD;
55       break;
56    case 4:
57       BR13 = (((int)dst_pitch) & 0xffff) | (0xF0 << 16) | (1 << 24) | (1 << 25);
58       CMD = (XY_COLOR_BLT_CMD | rgba_mask);
59       break;
60    default:
61       return;
62    }
63 
64    if (!BEGIN_BATCH(6)) {
65       FLUSH_BATCH(NULL, I915_FLUSH_ASYNC);
66       assert(BEGIN_BATCH(6));
67    }
68    OUT_BATCH(CMD);
69    OUT_BATCH(BR13);
70    OUT_BATCH((y << 16) | x);
71    OUT_BATCH(((y + h) << 16) | (x + w));
72    OUT_RELOC_FENCED(dst_buffer, I915_USAGE_2D_TARGET, dst_offset);
73    OUT_BATCH(color);
74 
75    i915_set_flush_dirty(i915, I915_FLUSH_CACHE);
76 }
77 
78 void
i915_copy_blit(struct i915_context * i915,unsigned cpp,unsigned short src_pitch,struct i915_winsys_buffer * src_buffer,unsigned src_offset,unsigned short dst_pitch,struct i915_winsys_buffer * dst_buffer,unsigned dst_offset,short src_x,short src_y,short dst_x,short dst_y,short w,short h)79 i915_copy_blit(struct i915_context *i915, unsigned cpp,
80                unsigned short src_pitch, struct i915_winsys_buffer *src_buffer,
81                unsigned src_offset, unsigned short dst_pitch,
82                struct i915_winsys_buffer *dst_buffer, unsigned dst_offset,
83                short src_x, short src_y, short dst_x, short dst_y, short w,
84                short h)
85 {
86    unsigned CMD, BR13;
87    int dst_y2 = dst_y + h;
88    int dst_x2 = dst_x + w;
89    struct i915_winsys_buffer *buffers[2] = {src_buffer, dst_buffer};
90 
91    I915_DBG(DBG_BLIT,
92             "%s src:buf(%p)/%d+%d %d,%d dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
93             __FUNCTION__, src_buffer, src_pitch, src_offset, src_x, src_y,
94             dst_buffer, dst_pitch, dst_offset, dst_x, dst_y, w, h);
95 
96    if (!i915_winsys_validate_buffers(i915->batch, buffers, 2)) {
97       FLUSH_BATCH(NULL, I915_FLUSH_ASYNC);
98       assert(i915_winsys_validate_buffers(i915->batch, buffers, 2));
99    }
100 
101    switch (cpp) {
102    case 1:
103    case 2:
104    case 3:
105       BR13 = (((int)dst_pitch) & 0xffff) | (0xCC << 16) | (1 << 24);
106       CMD = XY_SRC_COPY_BLT_CMD;
107       break;
108    case 4:
109       BR13 = (((int)dst_pitch) & 0xffff) | (0xCC << 16) | (1 << 24) | (1 << 25);
110       CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
111              XY_SRC_COPY_BLT_WRITE_RGB);
112       break;
113    default:
114       return;
115    }
116 
117    if (dst_y2 < dst_y || dst_x2 < dst_x) {
118       return;
119    }
120 
121    /* Hardware can handle negative pitches but loses the ability to do
122     * proper overlapping blits in that case.  We don't really have a
123     * need for either at this stage.
124     */
125    assert(dst_pitch > 0 && src_pitch > 0);
126 
127    if (!BEGIN_BATCH(8)) {
128       FLUSH_BATCH(NULL, I915_FLUSH_ASYNC);
129       assert(BEGIN_BATCH(8));
130    }
131    OUT_BATCH(CMD);
132    OUT_BATCH(BR13);
133    OUT_BATCH((dst_y << 16) | dst_x);
134    OUT_BATCH((dst_y2 << 16) | dst_x2);
135    OUT_RELOC_FENCED(dst_buffer, I915_USAGE_2D_TARGET, dst_offset);
136    OUT_BATCH((src_y << 16) | src_x);
137    OUT_BATCH(((int)src_pitch & 0xffff));
138    OUT_RELOC_FENCED(src_buffer, I915_USAGE_2D_SOURCE, src_offset);
139 
140    i915_set_flush_dirty(i915, I915_FLUSH_CACHE);
141 }
142