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split timelapse frame generation into multiple tasks

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omigamedev
2019-11-09 12:40:30 +01:00
parent 21d0ff23c7
commit faff1dd979
3 changed files with 39 additions and 65 deletions
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16
src/rtt.cpp
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@@ -464,7 +464,7 @@ bool PBO::create(RTT& rtt) noexcept
rtt.bindFramebuffer();
glGenBuffers(1, &buffer_id);
glBindBuffer(GL_PIXEL_PACK_BUFFER, buffer_id);
glBufferData(GL_PIXEL_PACK_BUFFER, width * height * 4, 0, GL_STREAM_DRAW);
glBufferData(GL_PIXEL_PACK_BUFFER, width * height * 4, 0, GL_STREAM_READ);
glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, 0);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
rtt.unbindFramebuffer();
@@ -507,10 +507,10 @@ void PBO::unbind() noexcept
glm::uint8_t* PBO::map() noexcept
{
App::I->render_task([this] {
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, buffer_id);
mapped_ptr = (GLubyte*)glMapBufferRange(GL_PIXEL_UNPACK_BUFFER, 0,
width * height * 4, GL_MAP_READ_BIT | GL_MAP_UNSYNCHRONIZED_BIT | GL_MAP_FLUSH_EXPLICIT_BIT);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
glBindBuffer(GL_PIXEL_PACK_BUFFER, buffer_id);
mapped_ptr = (GLubyte*)glMapBufferRange(GL_PIXEL_PACK_BUFFER, 0,
width * height * 4, GL_MAP_READ_BIT);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
});
return mapped_ptr;
}
@@ -518,8 +518,8 @@ glm::uint8_t* PBO::map() noexcept
void PBO::unmap() noexcept
{
App::I->render_task([this] {
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, buffer_id);
glUnmapBuffer(GL_PIXEL_UNPACK_BUFFER);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
glBindBuffer(GL_PIXEL_PACK_BUFFER, buffer_id);
glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
});
}