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#include <mbgl/platform/platform.hpp>
#include <mbgl/gl/gl.hpp>
#include <mbgl/platform/log.hpp>
#include <mbgl/util/raster.hpp>
#include <cassert>
#include <cstring>
using namespace mbgl;
Raster::Raster(gl::TexturePool& texturePool_)
: texturePool(texturePool_)
{}
Raster::~Raster() {
if (textured) {
texturePool.releaseTextureID(textureID);
textureID = 0;
}
}
bool Raster::isLoaded() const {
std::lock_guard<std::mutex> lock(mtx);
return loaded;
}
void Raster::load(PremultipliedImage image) {
assert(image.data.get());
img = std::move(image);
width = GLsizei(img.width);
height = GLsizei(img.height);
std::lock_guard<std::mutex> lock(mtx);
loaded = true;
}
void Raster::bind(bool linear, gl::GLObjectStore& glObjectStore) {
if (!width || !height) {
Log::Error(Event::OpenGL, "trying to bind texture without dimension");
return;
}
if (img.data && !textured) {
upload(glObjectStore);
} else if (textured) {
MBGL_CHECK_ERROR(glBindTexture(GL_TEXTURE_2D, textureID));
}
GLint new_filter = linear ? GL_LINEAR : GL_NEAREST;
if (new_filter != this->filter) {
MBGL_CHECK_ERROR(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, new_filter));
MBGL_CHECK_ERROR(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, new_filter));
filter = new_filter;
}
}
void Raster::upload(gl::GLObjectStore& glObjectStore) {
if (img.data && !textured) {
textureID = texturePool.getTextureID(glObjectStore);
MBGL_CHECK_ERROR(glBindTexture(GL_TEXTURE_2D, textureID));
#ifndef GL_ES_VERSION_2_0
MBGL_CHECK_ERROR(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0));
#endif
MBGL_CHECK_ERROR(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
MBGL_CHECK_ERROR(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
MBGL_CHECK_ERROR(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, img.data.get()));
img.data.reset();
textured = true;
}
}
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