// Perf impact (test was only done on a gs dump):
// Normal (fast): Message:Buffer detailed info: Buffer object 9 (bound to
// GL_PIXEL_UNPACK_BUFFER_ARB, usage hint is GL_STREAM_COPY) will use VIDEO
// memory as the source for buffer object operations.
//
// Persistent (slower): Message:Buffer detailed info: Buffer object 8
// (bound to GL_PIXEL_UNPACK_BUFFER_ARB, usage hint is GL_DYNAMIC_DRAW)
// will use DMA CACHED memory as the source for buffer object operations
void Init() {
glGenBuffers(countof(m_pool), m_pool);
for (size_t i = 0; i < countof(m_pool); i++) {
BindPbo();
glBufferStorage(GL_PIXEL_UNPACK_BUFFER, m_pbo_size, NULL, create_flags);
m_map[m_current_pbo] = (char*)glMapBufferRange(GL_PIXEL_UNPACK_BUFFER, 0, m_pbo_size, map_flags);
m_fence[m_current_pbo] = 0;
NextPbo();
}
UnbindPbo();
}
void Init() {
glGenBuffers(1, &m_buffer);
BindPbo();
glObjectLabel(GL_BUFFER, m_buffer, -1, "PBO");
glBufferStorage(GL_PIXEL_UNPACK_BUFFER, m_pbo_size, NULL, create_flags);
m_map = (char*)glMapBufferRange(GL_PIXEL_UNPACK_BUFFER, 0, m_pbo_size, map_flags);
m_offset = 0;
for (size_t i = 0; i < countof(m_fence); i++) {
m_fence[i] = 0;
}
UnbindPbo();
}
// Perf impact (test was only done on a gs dump):
// Normal (fast): Message:Buffer detailed info: Buffer object 9 (bound to
// GL_PIXEL_UNPACK_BUFFER_ARB, usage hint is GL_STREAM_COPY) will use VIDEO
// memory as the source for buffer object operations.
//
// Persistent (slower): Message:Buffer detailed info: Buffer object 8
// (bound to GL_PIXEL_UNPACK_BUFFER_ARB, usage hint is GL_DYNAMIC_DRAW)
// will use DMA CACHED memory as the source for buffer object operations
void Init() {
glGenBuffers(countof(m_pool), m_pool);
m_texture_storage = GLLoader::found_GL_ARB_buffer_storage;
for (size_t i = 0; i < countof(m_pool); i++) {
BindPbo();
if (m_texture_storage) {
glBufferStorage(GL_PIXEL_UNPACK_BUFFER, m_pbo_size, NULL, create_flags);
m_map[m_current_pbo] = (char*)glMapBufferRange(GL_PIXEL_UNPACK_BUFFER, 0, m_pbo_size, map_flags);
m_fence[m_current_pbo] = 0;
} else {
glBufferData(GL_PIXEL_UNPACK_BUFFER, m_pbo_size, NULL, GL_STREAM_COPY);
m_map[m_current_pbo] = NULL;
}
NextPbo();
}
UnbindPbo();
}
// Perf impact (test was only done on a gs dump):
// Normal (fast): Message:Buffer detailed info: Buffer object 9 (bound to
// GL_PIXEL_UNPACK_BUFFER_ARB, usage hint is GL_STREAM_COPY) will use VIDEO
// memory as the source for buffer object operations.
//
// Persistent (slower): Message:Buffer detailed info: Buffer object 8
// (bound to GL_PIXEL_UNPACK_BUFFER_ARB, usage hint is GL_DYNAMIC_DRAW)
// will use DMA CACHED memory as the source for buffer object operations
void Init() {
glGenBuffers(countof(m_pool), m_pool);
m_texture_storage = GLLoader::found_GL_ARB_buffer_storage;
// Code is really faster on MT driver. So far only nvidia support it
if (!GLLoader::nvidia_buggy_driver)
m_texture_storage &= (theApp.GetConfig("ogl_texture_storage", 0) == 1);
for (size_t i = 0; i < countof(m_pool); i++) {
BindPbo();
if (m_texture_storage) {
glBufferStorage(GL_PIXEL_UNPACK_BUFFER, m_pbo_size, NULL, create_flags);
m_map[m_current_pbo] = (char*)glMapBufferRange(GL_PIXEL_UNPACK_BUFFER, 0, m_pbo_size, map_flags);
m_fence[m_current_pbo] = 0;
} else {
glBufferData(GL_PIXEL_UNPACK_BUFFER, m_pbo_size, NULL, GL_STREAM_COPY);
m_map[m_current_pbo] = NULL;
}
NextPbo();
}
UnbindPbo();
}