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Adjust GL3 ReadFrame() for GL ES 2.1 compatibility.

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Currently on Win32 this errors out and renders a black rectangle.
This commit is contained in:
whitequark 2019-05-20 19:05:58 +00:00
parent c18deb2d81
commit 11c5cdc7b0
1 changed files with 3 additions and 2 deletions
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5
src/render/rendergl3.cpp
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@ -680,9 +680,10 @@ void OpenGl3Renderer::Clear() {
std::shared_ptr<Pixmap> OpenGl3Renderer::ReadFrame() { std::shared_ptr<Pixmap> OpenGl3Renderer::ReadFrame() {
std::shared_ptr<Pixmap> pixmap = std::shared_ptr<Pixmap> pixmap =
Pixmap::Create(Pixmap::Format::RGB, (size_t)camera.width, (size_t)camera.height); Pixmap::Create(Pixmap::Format::RGBA, (size_t)camera.width, (size_t)camera.height);
glReadPixels(0, 0, (int)camera.width, (int)camera.height, glReadPixels(0, 0, (int)camera.width, (int)camera.height,
GL_RGB, GL_UNSIGNED_BYTE, &pixmap->data[0]); GL_RGBA, GL_UNSIGNED_BYTE, &pixmap->data[0]);
ssassert(glGetError() == GL_NO_ERROR, "Unexpected glReadPixels error");
return pixmap; return pixmap;
} }