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
|
/*
* Copyright (C) 2005-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#include "RenderBufferOpenGL.h"
#include "cores/RetroPlayer/rendering/RenderContext.h"
using namespace KODI;
using namespace RETRO;
CRenderBufferOpenGL::CRenderBufferOpenGL(GLuint pixeltype,
GLuint internalformat,
GLuint pixelformat,
GLuint bpp)
: m_pixeltype(pixeltype), m_internalformat(internalformat), m_pixelformat(pixelformat), m_bpp(bpp)
{
}
CRenderBufferOpenGL::~CRenderBufferOpenGL()
{
DeleteTexture();
}
void CRenderBufferOpenGL::CreateTexture()
{
glGenTextures(1, &m_textureId);
glBindTexture(m_textureTarget, m_textureId);
glTexImage2D(m_textureTarget, 0, m_internalformat, m_width, m_height, 0, m_pixelformat,
m_pixeltype, NULL);
glTexParameteri(m_textureTarget, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(m_textureTarget, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(m_textureTarget, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(m_textureTarget, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(m_textureTarget, 0);
}
bool CRenderBufferOpenGL::UploadTexture()
{
if (!glIsTexture(m_textureId))
CreateTexture();
glBindTexture(m_textureTarget, m_textureId);
const int stride = GetFrameSize() / m_height;
glPixelStorei(GL_UNPACK_ALIGNMENT, m_bpp);
glPixelStorei(GL_UNPACK_ROW_LENGTH, stride / m_bpp);
//! @todo This is subject to change:
//! We want to use PBO's instead of glTexSubImage2D!
//! This code has been borrowed from OpenGL ES in order
//! to remove GL dependencies on GLES.
glTexSubImage2D(m_textureTarget, 0, 0, 0, m_width, m_height, m_pixelformat, m_pixeltype,
m_data.data());
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
return true;
}
void CRenderBufferOpenGL::DeleteTexture()
{
if (glIsTexture(m_textureId))
glDeleteTextures(1, &m_textureId);
m_textureId = 0;
}
|
