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wined3d: Give GL_ARB_map_buffer_range another try. 

Nvidia's 270.xx.yy driver series fix the glMapBuffer alignment issues that caused major
performance problems. If the user is using an older driver we now drop the VBO instead of using
doublebuffered loading, which means that we fall back to the current behavior(no dynamic VBO) as
needed. Dynamic VBOs are needed on Nvidia drivers for GL_ARB_instanced_arrays.
This commit is contained in:
Stefan Dösinger 2011-04-19 21:24:26 +02:00 committed by Alexandre Julliard
parent 12140b5158
commit 68b15bc5ff
1 changed files with 1 additions and 2 deletions
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3
dlls/wined3d/buffer.c
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@ -1212,8 +1212,7 @@ static HRESULT buffer_init(struct wined3d_buffer *buffer, struct wined3d_device
TRACE("size %#x, usage %#x, format %s, memory @ %p, iface @ %p.\n", buffer->resource.size, buffer->resource.usage,
debug_d3dformat(buffer->resource.format->id), buffer->resource.allocatedMemory, buffer);
/* GL_ARB_map_buffer_range is disabled for now due to numerous bugs and no gains */
dynamic_buffer_ok = gl_info->supported[APPLE_FLUSH_BUFFER_RANGE];
dynamic_buffer_ok = gl_info->supported[APPLE_FLUSH_BUFFER_RANGE] || gl_info->supported[ARB_MAP_BUFFER_RANGE];
/* Observations show that drawStridedSlow is faster on dynamic VBs than converting +
* drawStridedFast (half-life 2 and others).