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move python timestamp check (avoid needless gl context switch)

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This commit is contained in:
milek7
2019-03-19 21:58:51 +01:00
parent f1c2d68587
commit 88f64183b7
1 changed files with 27 additions and 26 deletions
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53
pythonscreenviewer.cpp
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@@ -79,6 +79,32 @@ void python_screen_viewer::threadfunc()
auto start_time = std::chrono::high_resolution_clock::now();
for (auto &window : m_windows) {
unsigned char *image = nullptr;
int format, components, width, height;
if (!Global.python_sharectx) {
std::lock_guard<std::mutex> guard(m_rt->mutex);
if (window->timestamp == m_rt->timestamp)
continue;
window->timestamp = m_rt->timestamp;
if (!m_rt->image)
continue;
format = m_rt->format;
components = m_rt->components;
width = m_rt->width;
height = m_rt->height;
size_t size = width * height * (components == GL_RGB ? 3 : 4);
image = new unsigned char[size];
memcpy(image, m_rt->image, size);
}
glfwMakeContextCurrent(window->window);
gl::program::unbind();
gl::buffer::unbind();
@@ -89,32 +115,7 @@ void python_screen_viewer::threadfunc()
m_ubs.projection = glm::mat4(glm::mat3(glm::translate(glm::scale(glm::mat3(), 1.0f / window->scale), window->offset)));
window->ubo->update(m_ubs);
if (!Global.python_sharectx) {
unsigned char *image;
int format, components, width, height;
{
std::lock_guard<std::mutex> guard(m_rt->mutex);
if (window->timestamp == m_rt->timestamp)
continue;
if (!m_rt->image)
continue;
format = m_rt->format;
components = m_rt->components;
width = m_rt->width;
height = m_rt->height;
size_t size = width * height * (components == GL_RGB ? 3 : 4);
image = new unsigned char[size];
memcpy(image, m_rt->image, size);
window->timestamp = m_rt->timestamp;
}
if (image) {
glTexImage2D(
GL_TEXTURE_2D, 0,
format,