summaryrefslogtreecommitdiff
path: root/helpers/d3dcommonsize.hpp
blob: a1d2a3439bf6284e7eb122e1c39adc3430d4f104 (plain)
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
193
194
195
196
197
198
199
/**************************************************************************
 *
 * Copyright 2012 Jose Fonseca
 * All Rights Reserved.
 * 
 * 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
 * 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
 * AUTHORS,
 * 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.
 *
 **************************************************************************/


/*
 * Auxiliary functions to compute the size of array/blob arguments.
 */

#pragma once


/* We purposedly don't include any D3D header, so that this header can be used
 * with all D3D versions. */

#include <assert.h>

#include <algorithm>

#include "os.hpp"


static inline size_t
_vertexCount(D3DPRIMITIVETYPE PrimitiveType, UINT PrimitiveCount)
{
    switch (PrimitiveType) {
    case D3DPT_POINTLIST:
        return PrimitiveCount;
    case D3DPT_LINELIST:
        return PrimitiveCount*2;
    case D3DPT_LINESTRIP:
        return PrimitiveCount + 1;
    case D3DPT_TRIANGLELIST:
        return PrimitiveCount * 3;
    case D3DPT_TRIANGLESTRIP:
        return PrimitiveCount + 2;
    case D3DPT_TRIANGLEFAN:
        return PrimitiveCount + 2;
    default:
        os::log("apitrace: warning: %s: unknown D3DPRIMITIVETYPE %u\n", __FUNCTION__, PrimitiveType);
        return 0;
    }
}


static inline size_t
_vertexDataSize(D3DPRIMITIVETYPE PrimitiveType, UINT PrimitiveCount, UINT VertexStride) {
    return _vertexCount(PrimitiveType, PrimitiveCount) * VertexStride;
}


static inline size_t
_indexDataSize(D3DPRIMITIVETYPE PrimitiveType, UINT PrimitiveCount, D3DFORMAT IndexDataFormat) {
    UINT IndexStride;
    switch (IndexDataFormat) {
    case D3DFMT_INDEX16:
        IndexStride = 2;
        break;
    case D3DFMT_INDEX32:
        IndexStride = 4;
        break;
    default:
        os::log("apitrace: warning: %s: unexpected index D3DFORMAT %u\n", __FUNCTION__, IndexDataFormat);
        return 0;
    }
    return _vertexCount(PrimitiveType, PrimitiveCount) * IndexStride;
}


/*
 * Return the number of tokens for a given shader.
 */
static inline size_t
_shaderSize(const DWORD *pFunction)
{
    DWORD dwLength = 0;

    while (true) {
        DWORD dwToken = pFunction[dwLength++];

        switch (dwToken & D3DSI_OPCODE_MASK) {
        case D3DSIO_COMMENT:
            dwLength += (dwToken & D3DSI_COMMENTSIZE_MASK) >> D3DSI_COMMENTSIZE_SHIFT;
            break;

        case D3DSIO_END:
            if (dwToken == D3DSIO_END) {
                return dwLength * sizeof *pFunction;
            }
            break;
        }
    }
}


static inline void
_getFormatSize(D3DFORMAT Format, size_t & BlockSize, UINT & BlockWidth, UINT & BlockHeight);

#define PACKED_PITCH 0x7ffffff

static inline size_t
_getLockSize(D3DFORMAT Format, bool Partial, UINT Width, UINT Height, INT RowPitch = PACKED_PITCH, UINT Depth = 1, INT SlicePitch = 0) {
    if (Width == 0 || Height == 0 || Depth == 0) {
        return 0;
    }

    if (RowPitch < 0) {
        os::log("apitrace: warning: %s: negative row pitch %i\n", __FUNCTION__, RowPitch);
        return 0;
    }

    size_t size;
    if (Format == MAKEFOURCC('N','V','1','2') ||
        Format == MAKEFOURCC('Y','V','1','2')) {
        // Planar YUV

        if (RowPitch == PACKED_PITCH) {
            RowPitch = Width;
        }

        size = (Height + (Height + 1)/2) * RowPitch;
    } else if (Format == MAKEFOURCC('A','T','I','1')) {
        // 64 bits per 4x4 block, but limited to height*pitch

        if (RowPitch == PACKED_PITCH) {
            RowPitch = Width;
        }

        size = std::min(Height * RowPitch,  ((Height + 3)/4) * ((Width + 3)/4) * (64 / 8));
    } else if (Format == MAKEFOURCC('A','T','I','2')) {
        // 128 bits per 4x4 block, but limited to height*pitch

        if (RowPitch == PACKED_PITCH) {
            RowPitch = Width;
        }

        size = std::min(Height * RowPitch,  ((Height + 3)/4) * ((Width + 3)/4) * (128 / 8));
    } else {
        size_t BlockSize;
        UINT BlockWidth;
        UINT BlockHeight;
        _getFormatSize(Format, BlockSize, BlockWidth, BlockHeight);
        assert(BlockHeight);
        Height = (Height + BlockHeight - 1) / BlockHeight;

        if (RowPitch == PACKED_PITCH) {
            RowPitch = ((Width + BlockWidth  - 1) / BlockWidth * BlockSize + 7) / 8;
        }

        size = Height * RowPitch;

        if (Partial || Height == 1) {
            // Must take pixel size in consideration
            if (BlockWidth) {
                Width = (Width + BlockWidth  - 1) / BlockWidth;
                size = (Width * BlockSize + 7) / 8;
                if (Height > 1) {
                    size += (Height - 1) * RowPitch;
                }
            }
        }
    }

    if (Depth > 1) {
        if (SlicePitch < 0) {
            os::log("apitrace: warning: %s: negative slice pitch %i\n", __FUNCTION__, SlicePitch);
            return 0;
        }

        size += (Depth - 1) * SlicePitch;
    }

    return size;
}