<div class="gmail_quote">On Mon, Apr 18, 2011 at 1:06 PM, Nicolas Kaiser <<a href="mailto:nikai@nikai.net" target="_blank">nikai@nikai.net</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> - GL_ARB_half_float_pixel: I'm having problems with this one. (1a) According to the spec this extension, quote "will work with the OpenGL 1.5 Specification." However, glxinfo says it is at 1.3: OpenGL vendor string: Tungsten Graphics, Inc. OpenGL renderer string: Mesa DRI R200 (R200 514D) TCL DRI2 OpenGL version string: 1.3 Mesa 7.11-devel (git-699ecec) </blockquote><div> The spec vaguely says: This extension is written against the OpenGL 2.0 Specification but will work with the OpenGL 1.5 Specification. but it doesn't say: OpenGL 1.5 is required. The extension is driver-independent, it's implemented in the Mesa core, and doesn't need any driver or hardware parts. It's not much useful without ARB_texture_float though, which the hardware cannot do. </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> (1b) ./piglit-run.py -t draw-vertices-half-float tests/all.tests results/half-float.results skips the test: @test: general/draw-vertices-half-float info: @@@Returncode: 0\n\nErrors:\n\n\nOutput:\nRequires OpenGL 1.5\n </blockquote><div> </div></div>draw-vertices-half-float tests ARB_half_float_vertex only. ARB_half_float_pixel can be tested by glean/pixelFormats. There are more extensions r200 could support, but they would need a lot more work than just enabling them, some of them are: - GL_ARB_framebuffer_object - GL_EXT_framebuffer_blit (subset of ARB_fbo) - GL_EXT_framebuffer_multisample (subset of ARB_fbo, dummy implementation like in the other drivers) - GL_ARB_map_buffer_range - GL_ARB_pixel_buffer_object Marek