1 #ifndef _TCUSURFACE_HPP
2 #define _TCUSURFACE_HPP
3 /*-------------------------------------------------------------------------
4 * drawElements Quality Program Tester Core
5 * ----------------------------------------
6 *
7 * Copyright 2014 The Android Open Source Project
8 *
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
12 *
13 * http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 *
21 *//*!
22 * \file
23 * \brief RGBA8888 surface class.
24 *//*--------------------------------------------------------------------*/
25
26 #include "tcuDefs.hpp"
27 #include "tcuRGBA.hpp"
28 #include "tcuTexture.hpp"
29
30 #include "deArrayBuffer.hpp"
31
32 namespace tcu
33 {
34
35 /*--------------------------------------------------------------------*//*!
36 * \brief RGBA8888 surface
37 *
38 * Surface provides basic pixel storage functionality. Only single format
39 * (RGBA8888) is supported.
40 *
41 * PixelBufferAccess (see tcuTexture.h) provides much more flexible API
42 * for handling various pixel formats. This is mainly a convinience class.
43 *//*--------------------------------------------------------------------*/
44 class Surface
45 {
46 public:
47 Surface (void);
48 Surface (int width, int height);
49 ~Surface (void);
50
51 void setSize (int width, int height);
52
getWidth(void) const53 int getWidth (void) const { return m_width; }
getHeight(void) const54 int getHeight (void) const { return m_height; }
55
56 void setPixel (int x, int y, RGBA col);
57 RGBA getPixel (int x, int y) const;
58
59 ConstPixelBufferAccess getAccess (void) const;
60 PixelBufferAccess getAccess (void);
61
62 private:
63 // \note Copy constructor and assignment operators are public and auto-generated
64
65 int m_width;
66 int m_height;
67 de::ArrayBuffer<deUint32> m_pixels;
68 } DE_WARN_UNUSED_TYPE;
69
setPixel(int x,int y,RGBA col)70 inline void Surface::setPixel (int x, int y, RGBA col)
71 {
72 DE_ASSERT(de::inBounds(x, 0, m_width) && de::inBounds(y, 0, m_height));
73
74 const int pixOffset = y*m_width + x;
75 deUint32* pixAddr = m_pixels.getElementPtr(pixOffset);
76
77 #if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
78 *pixAddr = col.getPacked();
79 #else
80 *((deUint8*)pixAddr + 0) = (deUint8)col.getRed();
81 *((deUint8*)pixAddr + 1) = (deUint8)col.getGreen();
82 *((deUint8*)pixAddr + 2) = (deUint8)col.getBlue();
83 *((deUint8*)pixAddr + 3) = (deUint8)col.getAlpha();
84 #endif
85 }
86
getPixel(int x,int y) const87 inline RGBA Surface::getPixel (int x, int y) const
88 {
89 DE_ASSERT(de::inBounds(x, 0, m_width) && de::inBounds(y, 0, m_height));
90
91 const int pixOffset = y*m_width + x;
92 const deUint32* pixAddr = m_pixels.getElementPtr(pixOffset);
93
94 DE_STATIC_ASSERT(RGBA::RED_SHIFT == 0 && RGBA::GREEN_SHIFT == 8 && RGBA::BLUE_SHIFT == 16 && RGBA::ALPHA_SHIFT == 24);
95
96 #if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
97 return RGBA(*pixAddr);
98 #else
99 const deUint8* byteAddr = (const deUint8*)pixAddr;
100 return RGBA(byteAddr[0], byteAddr[1], byteAddr[2], byteAddr[3]);
101 #endif
102 }
103
104 /** Get pixel buffer access from surface. */
getAccess(void) const105 inline ConstPixelBufferAccess Surface::getAccess (void) const
106 {
107 return ConstPixelBufferAccess(TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT8), m_width, m_height, 1, m_pixels.empty() ? DE_NULL : m_pixels.getPtr());
108 }
109
110 /** Get pixel buffer access from surface. */
getAccess(void)111 inline PixelBufferAccess Surface::getAccess (void)
112 {
113 return PixelBufferAccess(TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT8), m_width, m_height, 1, m_pixels.empty() ? DE_NULL : m_pixels.getPtr());
114 }
115
116 } // tcu
117
118 #endif // _TCUSURFACE_HPP
119