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/*
* DISTRHO Plugin Framework (DPF)
* Copyright (C) 2012-2019 Filipe Coelho <falktx@falktx.com>
*
* Permission to use, copy, modify, and/or distribute this software for any purpose with
* or without fee is hereby granted, provided that the above copyright notice and this
* permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "../Image.hpp"
START_NAMESPACE_DGL
// -----------------------------------------------------------------------
Image::Image()
: ImageBase(),
fFormat(0),
fType(0),
fTextureId(0),
fIsReady(false)
{
glGenTextures(1, &fTextureId);
}
Image::Image(const Image& image)
: ImageBase(image),
fFormat(image.fFormat),
fType(image.fType),
fTextureId(0),
fIsReady(false)
{
glGenTextures(1, &fTextureId);
}
Image::Image(const char* const rawData, const uint width, const uint height, const GLenum format, const GLenum type)
: ImageBase(rawData, width, height),
fFormat(format),
fType(type),
fTextureId(0),
fIsReady(false)
{
glGenTextures(1, &fTextureId);
}
Image::Image(const char* const rawData, const Size<uint>& size, const GLenum format, const GLenum type)
: ImageBase(rawData, size),
fFormat(format),
fType(type),
fTextureId(0),
fIsReady(false)
{
glGenTextures(1, &fTextureId);
}
Image::~Image()
{
if (fTextureId != 0)
{
#ifndef DISTRHO_OS_MAC // FIXME
glDeleteTextures(1, &fTextureId);
#endif
fTextureId = 0;
}
}
void Image::loadFromMemory(const char* const rawData,
const uint width,
const uint height,
const GLenum format,
const GLenum type) noexcept
{
loadFromMemory(rawData, Size<uint>(width, height), format, type);
}
void Image::loadFromMemory(const char* const rawData,
const Size<uint>& size,
const GLenum format,
const GLenum type) noexcept
{
fRawData = rawData;
fSize = size;
fFormat = format;
fType = type;
fIsReady = false;
}
GLenum Image::getFormat() const noexcept
{
return fFormat;
}
GLenum Image::getType() const noexcept
{
return fType;
}
Image& Image::operator=(const Image& image) noexcept
{
fRawData = image.fRawData;
fSize = image.fSize;
fFormat = image.fFormat;
fType = image.fType;
fIsReady = false;
return *this;
}
void Image::_drawAt(const Point<int>& pos)
{
if (fTextureId == 0 || ! isValid())
return;
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, fTextureId);
if (! fIsReady)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
static const float trans[] = { 0.0f, 0.0f, 0.0f, 0.0f };
glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, trans);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
static_cast<GLsizei>(fSize.getWidth()), static_cast<GLsizei>(fSize.getHeight()), 0,
fFormat, fType, fRawData);
fIsReady = true;
}
Rectangle<int>(pos, static_cast<int>(fSize.getWidth()), static_cast<int>(fSize.getHeight())).draw();
glBindTexture(GL_TEXTURE_2D, 0);
glDisable(GL_TEXTURE_2D);
}
// -----------------------------------------------------------------------
END_NAMESPACE_DGL
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