https://bugs.freedesktop.org/show_bug.cgi?id=42313
Bug #: 42313
Summary: software rasterizer: ignore glTexCoordPointer if
GL_TEXTURE_2D is disabled
Classification: Unclassified
Product: Mesa
Version: 7.11
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: trivial
Priority: medium
Component: Other
AssignedTo: mesa-dev@lists.freedesktop.org
ReportedBy: roman.va...@gmail.com
Hello, fellows.
I've noticed behavior of software rasterizer is slightly differs form most of
hardware rendered implementations. At the moment I've tried it on several
platforms (mesa/i945GM, fglrx and win32/nvidia) and software rasterizer of
mesa. I'm focused to reduce excess OpenGL calls in my program due to
eliminating unnecessary state changes. This also critical due to usage of
python language.
As a result I've found that I can use glDrawArrays to draw non-textured
primitives even if glTexCoordPointer is binded to buffer (but
glDisable(GL_TEXTURE_2D) and glBindTexture(GL_TEXTURE_2D, 0) was called
before). It works fine on listed hardware platforms. But draws nothing with
mesa software rasterizer.
Is it possible to adjust behavior of mesa software rasterizer to closely match
hardware renderers in this aspect?
Thank you in advance, Roman.
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