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Use the new ResourcePool Movit functionality.
[mlt] / src / modules / opengl / mlt_movit_input.cpp
1 /*
2  * mlt_movit_input.cpp
3  * Copyright (C) 2013 Dan Dennedy <dan@dennedy.org>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software Foundation,
17  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18  */
19
20 #include "mlt_movit_input.h"
21
22 MltInput::MltInput(unsigned width, unsigned height)
23         : m_width(width)
24         , m_height(height)
25         , output_linear_gamma(false)
26         , needs_mipmaps(false)
27         , input(0)
28         , isRGB(true)
29         , m_chain(NULL)
30 {
31         register_int("output_linear_gamma", &output_linear_gamma);
32         register_int("needs_mipmaps", &needs_mipmaps);
33 }
34
35 MltInput::~MltInput()
36 {
37         // XXX: this is crashing when a producer is closed
38         // on Windows when using melt with qglsl.
39 //      delete input;
40 }
41
42 std::string MltInput::output_fragment_shader()
43 {
44         assert(input);
45         return input->output_fragment_shader();
46 }
47
48 void MltInput::set_gl_state(GLuint glsl_program_num, const std::string& prefix, unsigned *sampler_num)
49 {
50         assert(input);
51         input->set_gl_state(glsl_program_num, prefix, sampler_num);
52 }
53
54 Effect::AlphaHandling MltInput::alpha_handling() const
55 {
56         assert(input);
57         return input->alpha_handling();
58 }
59
60 void MltInput::finalize()
61 {
62         assert(input);
63         bool ok = input->set_int("output_linear_gamma", output_linear_gamma);
64         ok |= input->set_int("needs_mipmaps", needs_mipmaps);
65         assert(ok);
66         input->inform_added(m_chain);
67         input->finalize();
68 }
69
70 bool MltInput::can_output_linear_gamma() const
71 {
72         assert(input);
73         return input->can_output_linear_gamma();
74 }
75
76 Colorspace MltInput::get_color_space() const
77 {
78         assert(input);
79         return input->get_color_space();
80 }
81 GammaCurve MltInput::get_gamma_curve() const
82 {
83         assert(input);
84         return input->get_gamma_curve();
85 }
86
87 void MltInput::useFlatInput(MovitPixelFormat pix_fmt, unsigned width, unsigned height)
88 {
89         if (!input) {
90                 m_width = width;
91                 m_height = height;
92                 ImageFormat image_format;
93                 image_format.color_space = COLORSPACE_sRGB;
94                 image_format.gamma_curve = GAMMA_sRGB;
95                 input = new FlatInput(image_format, pix_fmt, GL_UNSIGNED_BYTE, width, height);
96         }
97 }
98
99 void MltInput::useYCbCrInput(const ImageFormat& image_format, const YCbCrFormat& ycbcr_format, unsigned width, unsigned height)
100 {
101         if (!input) {
102                 m_width = width;
103                 m_height = height;
104                 input = new YCbCrInput(image_format, ycbcr_format, width, height);
105                 isRGB = false;
106                 m_ycbcr_format = ycbcr_format;
107         }
108 }
109
110 void MltInput::set_pixel_data(const unsigned char* data)
111 {
112         assert(input);
113         if (isRGB) {
114                 FlatInput* flat = (FlatInput*) input;
115                 flat->set_pixel_data(data);
116         } else {
117                 YCbCrInput* ycbcr = (YCbCrInput*) input;
118                 ycbcr->set_pixel_data(0, data);
119                 ycbcr->set_pixel_data(1, &data[m_width * m_height]);
120                 ycbcr->set_pixel_data(2, &data[m_width * m_height + (m_width / m_ycbcr_format.chroma_subsampling_x * m_height / m_ycbcr_format.chroma_subsampling_y)]);
121         }
122 }