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Add buffer orphan / stream options

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Allows users to override default API usage, in order to get best performance on different platforms.

Also changes the default legacy flags to use STREAM rather than DYNAMIC.
This commit is contained in:
lawnjelly
2021-04-13 17:34:27 +01:00
parent c406f569aa
commit 2ffdfdfd1a
7 changed files with 108 additions and 15 deletions
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17
drivers/gles2/rasterizer_canvas_base_gles2.cpp
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@@ -947,11 +947,18 @@ void RasterizerCanvasBaseGLES2::draw_lens_distortion_rect(const Rect2 &p_rect, f
void RasterizerCanvasBaseGLES2::initialize() {
bool flag_stream = false;
if (flag_stream)
_buffer_upload_usage_flag = GL_STREAM_DRAW;
else
_buffer_upload_usage_flag = GL_DYNAMIC_DRAW;
int flag_stream_mode = GLOBAL_GET("rendering/2d/opengl/legacy_stream");
switch (flag_stream_mode) {
default: {
_buffer_upload_usage_flag = GL_STREAM_DRAW;
} break;
case 1: {
_buffer_upload_usage_flag = GL_DYNAMIC_DRAW;
} break;
case 2: {
_buffer_upload_usage_flag = GL_STREAM_DRAW;
} break;
}
// quad buffer
{