3DPrinting/PrusaSlicer-NonPlainar
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
0f683a6a1e
PrusaSlicer-NonPlainar/src/slic3r/GUI/GLTexture.cpp

466 lines
13 KiB
C++
Raw Blame History

#include "libslic3r/libslic3r.h"
#include "GLTexture.hpp"
#include <GL/glew.h>
#include <wx/image.h>
#include <boost/filesystem.hpp>
#if ENABLE_TEXTURES_FROM_SVG
#include <boost/algorithm/string/predicate.hpp>
#endif // ENABLE_TEXTURES_FROM_SVG
#include <vector>
#include <algorithm>
#if ENABLE_TEXTURES_FROM_SVG
#define NANOSVG_IMPLEMENTATION
#include "nanosvg/nanosvg.h"
#define NANOSVGRAST_IMPLEMENTATION
#include "nanosvg/nanosvgrast.h"
#endif // ENABLE_TEXTURES_FROM_SVG
namespace Slic3r {
namespace GUI {
GLTexture::Quad_UVs GLTexture::FullTextureUVs = { { 0.0f, 1.0f }, { 1.0f, 1.0f }, { 1.0f, 0.0f }, { 0.0f, 0.0f } };
GLTexture::GLTexture()
: m_id(0)
, m_width(0)
, m_height(0)
, m_source("")
{
}
GLTexture::~GLTexture()
{
reset();
}
#if ENABLE_TEXTURES_FROM_SVG
bool GLTexture::load_from_file(const std::string& filename, bool use_mipmaps)
{
reset();
if (!boost::filesystem::exists(filename))
return false;
if (boost::algorithm::iends_with(filename, ".png"))
return load_from_png(filename, use_mipmaps);
else
return false;
}
bool GLTexture::load_from_svg_file(const std::string& filename, bool use_mipmaps, unsigned int max_size_px)
{
reset();
if (!boost::filesystem::exists(filename))
return false;
if (boost::algorithm::iends_with(filename, ".svg"))
return load_from_svg(filename, use_mipmaps, max_size_px);
else
return false;
}
#else
bool GLTexture::load_from_file(const std::string& filename, bool use_mipmaps)
{
reset();
if (!boost::filesystem::exists(filename))
return false;
// Load a PNG with an alpha channel.
wxImage image;
if (!image.LoadFile(wxString::FromUTF8(filename.c_str()), wxBITMAP_TYPE_PNG))
{
reset();
return false;
}
m_width = image.GetWidth();
m_height = image.GetHeight();
int n_pixels = m_width * m_height;
if (n_pixels <= 0)
{
reset();
return false;
}
// Get RGB & alpha raw data from wxImage, pack them into an array.
unsigned char* img_rgb = image.GetData();
if (img_rgb == nullptr)
{
reset();
return false;
}
unsigned char* img_alpha = image.GetAlpha();
std::vector<unsigned char> data(n_pixels * 4, 0);
for (int i = 0; i < n_pixels; ++i)
{
int data_id = i * 4;
int img_id = i * 3;
data[data_id + 0] = img_rgb[img_id + 0];
data[data_id + 1] = img_rgb[img_id + 1];
data[data_id + 2] = img_rgb[img_id + 2];
data[data_id + 3] = (img_alpha != nullptr) ? img_alpha[i] : 255;
}
// sends data to gpu
::glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
::glGenTextures(1, &m_id);
::glBindTexture(GL_TEXTURE_2D, m_id);
::glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)m_width, (GLsizei)m_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, (const void*)data.data());
if (use_mipmaps)
{
// we manually generate mipmaps because glGenerateMipmap() function is not reliable on all graphics cards
unsigned int levels_count = generate_mipmaps(image);
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, levels_count);
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
}
else
{
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
}
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
::glBindTexture(GL_TEXTURE_2D, 0);
m_source = filename;
return true;
}
#endif // ENABLE_TEXTURES_FROM_SVG
#if ENABLE_SVG_ICONS
bool GLTexture::load_from_svg_files_as_sprites_array(const std::vector<std::string>& filenames, unsigned int num_states, unsigned int sprite_size_px)
{
static int pass = 0;
++pass;
reset();
if (filenames.empty() || (num_states == 0) || (sprite_size_px == 0))
return false;
m_width = (int)sprite_size_px * std::max((int)(num_states), (int)(filenames.size()));
m_height = m_width;
int n_pixels = m_width * m_height;
if (n_pixels <= 0)
{
reset();
return false;
}
std::vector<unsigned char> data(n_pixels * 4, 0);
std::vector<unsigned char> sprite_data(sprite_size_px * sprite_size_px * 4, 0);
NSVGrasterizer* rast = nsvgCreateRasterizer();
if (rast == nullptr)
{
reset();
return false;
}
int sprite_id = -1;
for (const std::string& filename : filenames)
{
++sprite_id;
if (!boost::filesystem::exists(filename))
continue;
if (!boost::algorithm::iends_with(filename, ".svg"))
continue;
NSVGimage* image = nsvgParseFromFile(filename.c_str(), "px", 96.0f);
if (image == nullptr)
continue;
float scale = (float)sprite_size_px / std::max(image->width, image->height);
nsvgRasterize(rast, image, 0, 0, scale, sprite_data.data(), sprite_size_px, sprite_size_px, sprite_size_px * 4);
int sprite_offset_px = sprite_id * sprite_size_px * m_width;
for (unsigned int i = 0; i < num_states; ++i)
{
int state_offset_px = sprite_offset_px + i * sprite_size_px;
for (int j = 0; j < sprite_size_px; ++j)
{
int data_offset = (state_offset_px + j * m_width) * 4;
::memcpy((void*)&data.data()[data_offset], (const void*)&sprite_data.data()[j * sprite_size_px * 4], sprite_size_px * 4);
}
}
nsvgDelete(image);
}
nsvgDeleteRasterizer(rast);
// sends data to gpu
::glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
::glGenTextures(1, &m_id);
::glBindTexture(GL_TEXTURE_2D, m_id);
::glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)m_width, (GLsizei)m_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, (const void*)data.data());
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
::glBindTexture(GL_TEXTURE_2D, 0);
m_source = filenames.front();
wxImage output(m_width, m_height);
output.InitAlpha();
for (int h = 0; h < m_height; ++h)
{
for (int w = 0; w < m_width; ++w)
{
int px = h * m_width + w;
int px_byte = px * 4;
output.SetRGB(w, h, data.data()[px_byte + 0], data.data()[px_byte + 1], data.data()[px_byte + 2]);
output.SetAlpha(w, h, data.data()[px_byte + 3]);
}
}
output.SaveFile("C:/prusa/slic3r/svg_icons/temp/test_" + std::to_string(pass) + ".png", wxBITMAP_TYPE_PNG);
return true;
}
#endif // ENABLE_SVG_ICONS
void GLTexture::reset()
{
if (m_id != 0)
::glDeleteTextures(1, &m_id);
m_id = 0;
m_width = 0;
m_height = 0;
m_source = "";
}
void GLTexture::render_texture(unsigned int tex_id, float left, float right, float bottom, float top)
{
render_sub_texture(tex_id, left, right, bottom, top, FullTextureUVs);
}
void GLTexture::render_sub_texture(unsigned int tex_id, float left, float right, float bottom, float top, const GLTexture::Quad_UVs& uvs)
{
::glEnable(GL_BLEND);
::glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
::glEnable(GL_TEXTURE_2D);
::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
::glBindTexture(GL_TEXTURE_2D, (GLuint)tex_id);
::glBegin(GL_QUADS);
::glTexCoord2f(uvs.left_bottom.u, uvs.left_bottom.v); ::glVertex2f(left, bottom);
::glTexCoord2f(uvs.right_bottom.u, uvs.right_bottom.v); ::glVertex2f(right, bottom);
::glTexCoord2f(uvs.right_top.u, uvs.right_top.v); ::glVertex2f(right, top);
::glTexCoord2f(uvs.left_top.u, uvs.left_top.v); ::glVertex2f(left, top);
::glEnd();
::glBindTexture(GL_TEXTURE_2D, 0);
::glDisable(GL_TEXTURE_2D);
::glDisable(GL_BLEND);
}
unsigned int GLTexture::generate_mipmaps(wxImage& image)
{
int w = image.GetWidth();
int h = image.GetHeight();
GLint level = 0;
std::vector<unsigned char> data(w * h * 4, 0);
while ((w > 1) || (h > 1))
{
++level;
w = std::max(w / 2, 1);
h = std::max(h / 2, 1);
int n_pixels = w * h;
image = image.ResampleBicubic(w, h);
unsigned char* img_rgb = image.GetData();
unsigned char* img_alpha = image.GetAlpha();
data.resize(n_pixels * 4);
for (int i = 0; i < n_pixels; ++i)
{
int data_id = i * 4;
int img_id = i * 3;
data[data_id + 0] = img_rgb[img_id + 0];
data[data_id + 1] = img_rgb[img_id + 1];
data[data_id + 2] = img_rgb[img_id + 2];
data[data_id + 3] = (img_alpha != nullptr) ? img_alpha[i] : 255;
}
::glTexImage2D(GL_TEXTURE_2D, level, GL_RGBA, (GLsizei)w, (GLsizei)h, 0, GL_RGBA, GL_UNSIGNED_BYTE, (const void*)data.data());
}
return (unsigned int)level;
}
#if ENABLE_TEXTURES_FROM_SVG
bool GLTexture::load_from_png(const std::string& filename, bool use_mipmaps)
{
// Load a PNG with an alpha channel.
wxImage image;
if (!image.LoadFile(wxString::FromUTF8(filename.c_str()), wxBITMAP_TYPE_PNG))
{
reset();
return false;
}
m_width = image.GetWidth();
m_height = image.GetHeight();
int n_pixels = m_width * m_height;
if (n_pixels <= 0)
{
reset();
return false;
}
// Get RGB & alpha raw data from wxImage, pack them into an array.
unsigned char* img_rgb = image.GetData();
if (img_rgb == nullptr)
{
reset();
return false;
}
unsigned char* img_alpha = image.GetAlpha();
std::vector<unsigned char> data(n_pixels * 4, 0);
for (int i = 0; i < n_pixels; ++i)
{
int data_id = i * 4;
int img_id = i * 3;
data[data_id + 0] = img_rgb[img_id + 0];
data[data_id + 1] = img_rgb[img_id + 1];
data[data_id + 2] = img_rgb[img_id + 2];
data[data_id + 3] = (img_alpha != nullptr) ? img_alpha[i] : 255;
}
// sends data to gpu
::glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
::glGenTextures(1, &m_id);
::glBindTexture(GL_TEXTURE_2D, m_id);
::glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)m_width, (GLsizei)m_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, (const void*)data.data());
if (use_mipmaps)
{
// we manually generate mipmaps because glGenerateMipmap() function is not reliable on all graphics cards
unsigned int levels_count = generate_mipmaps(image);
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, levels_count);
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
}
else
{
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
}
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
::glBindTexture(GL_TEXTURE_2D, 0);
m_source = filename;
return true;
}
bool GLTexture::load_from_svg(const std::string& filename, bool use_mipmaps, unsigned int max_size_px)
{
NSVGimage* image = nsvgParseFromFile(filename.c_str(), "px", 96.0f);
if (image == nullptr)
{
// printf("Could not open SVG image.\n");
reset();
return false;
}
float scale = (float)max_size_px / std::max(image->width, image->height);
m_width = (int)(scale * image->width);
m_height = (int)(scale * image->height);
int n_pixels = m_width * m_height;
if (n_pixels <= 0)
{
reset();
return false;
}
NSVGrasterizer* rast = nsvgCreateRasterizer();
if (rast == nullptr)
{
// printf("Could not init rasterizer.\n");
nsvgDelete(image);
reset();
return false;
}
// creates the temporary buffer only once, with max size, and reuse it for all the levels, if generating mipmaps
std::vector<unsigned char> data(n_pixels * 4, 0);
nsvgRasterize(rast, image, 0, 0, scale, data.data(), m_width, m_height, m_width * 4);
// sends data to gpu
::glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
::glGenTextures(1, &m_id);
::glBindTexture(GL_TEXTURE_2D, m_id);
::glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)m_width, (GLsizei)m_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, (const void*)data.data());
if (use_mipmaps)
{
// we manually generate mipmaps because glGenerateMipmap() function is not reliable on all graphics cards
int lod_w = m_width;
int lod_h = m_height;
GLint level = 0;
while ((lod_w > 1) || (lod_h > 1))
{
++level;
lod_w = std::max(lod_w / 2, 1);
lod_h = std::max(lod_h / 2, 1);
scale /= 2.0f;
nsvgRasterize(rast, image, 0, 0, scale, data.data(), lod_w, lod_h, lod_w * 4);
::glTexImage2D(GL_TEXTURE_2D, level, GL_RGBA, (GLsizei)lod_w, (GLsizei)lod_h, 0, GL_RGBA, GL_UNSIGNED_BYTE, (const void*)data.data());
}
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, level);
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
}
else
{
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
}
::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
::glBindTexture(GL_TEXTURE_2D, 0);
m_source = filename;
nsvgDeleteRasterizer(rast);
nsvgDelete(image);
return true;
}
#endif // ENABLE_TEXTURES_FROM_SVG
} // namespace GUI
} // namespace Slic3r
Reference in New Issue View Git Blame Copy Permalink