diff options
| author | Mike Erwin <significant.bit@gmail.com> | 2016-08-10 00:17:34 +0300 |
|---|---|---|
| committer | Mike Erwin <significant.bit@gmail.com> | 2016-08-10 00:17:34 +0300 |
| commit | e4e1b0c7d353d1c37ef88cd1670001974e717841 (patch) | |
| tree | 998177caae945b5955309a7ff2b60d9308a3ee2f /source/blender/gpu/intern/gpu_immediate.c | |
| parent | f3d65ad23c7b12f608ad8ee8cfe3976b782b0155 (diff) | |
OpenGL: invalidate buffers the modern way
There are older ways to give OpenGL hints about buffer invalidation, but
glInvalidateBufferData does exactly what we want. Use this function when
OpenGL 4.3 is available (Windows and proprietary Linux drivers).
Part of Gawain immediate mode.
Diffstat (limited to 'source/blender/gpu/intern/gpu_immediate.c')
| -rw-r--r-- | source/blender/gpu/intern/gpu_immediate.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/source/blender/gpu/intern/gpu_immediate.c b/source/blender/gpu/intern/gpu_immediate.c index 5e85c9a5374..b08484ea134 100644 --- a/source/blender/gpu/intern/gpu_immediate.c +++ b/source/blender/gpu/intern/gpu_immediate.c @@ -318,8 +318,10 @@ void immBegin(GLenum primitive, unsigned vertex_ct) #if APPLE_LEGACY glBufferData(GL_ARRAY_BUFFER, IMM_BUFFER_SIZE, NULL, GL_DYNAMIC_DRAW); #else - glMapBufferRange(GL_ARRAY_BUFFER, 0, IMM_BUFFER_SIZE, GL_MAP_INVALIDATE_BUFFER_BIT); - // glInvalidateBufferData(imm.vbo_id); // VERSION >= 4.3 || ARB_invalidate_subdata + if (GLEW_VERSION_4_3 || GLEW_ARB_invalidate_subdata) + glInvalidateBufferData(imm.vbo_id); + else + glMapBufferRange(GL_ARRAY_BUFFER, 0, IMM_BUFFER_SIZE, GL_MAP_INVALIDATE_BUFFER_BIT); #endif imm.buffer_offset = 0; |