With 1D textures, GL_TEXTURE_WRAP_T should be ignored (only
GL_TEXTURE_WRAP_S should be respected). But the i965 hardware
seems to follow the value of GL_TEXTURE_WRAP_T even when sampling
1D textures.
This fix forces GL_TEXTURE_WRAP_T to be GL_REPEAT whenever 1D
textures are used; this allows the texture to be sampled
correctly, avoiding "imaginary" border elements in the T direction.
This bug was demonstrated in the Piglit tex1d-2dborder test.
With this fix, that test passes.
One warning message:
drm_i915_getparam: -22
was still being sent to fprintf(). This causes all Piglit tests to fail,
even with MESA_DEBUG=0.
Using _mesa_warning() to emit the message allows the general Mesa controls
for messages like this to be applied.
In r*00SetTexBuffer2(), if the passed in text glx_texture_format
is GLX_TEXTURE_FORMAT_RGB_EXT, then we should use an RGB-only
texture format, even if the DRI buffer has four channels.
https://bugs.freedesktop.org/show_bug.cgi?id=21609
When a NULL value of pixels is passed to TexImage2D and
SGIS_generate_mipmap is enabled, don't try to generate the
mipmap tree: we don't have data yet for the texture and will
crash.
https://bugs.freedesktop.org/show_bug.cgi?id=21648
In r300SetTexBuffer2(), if the passed in text glx_texture_format
is GLX_TEXTURE_FORMAT_RGB_EXT, then we should use an RGB-only
texture format, even if the DRI buffer has four channels.
https://bugs.freedesktop.org/show_bug.cgi?id=21609
ctx->Stencil._Enabled is derived state and not immediately updated
when the stencil parameters are changed; we need to make sure that
it is up-to-date before accessing it.
https://bugs.freedesktop.org/show_bug.cgi?id=21608
Remove an eigth-pixel offset of the viewport inherited from
R100 code. This seems not to be necessary and causes blurring
when sampling textures 1:1.
https://bugs.freedesktop.org/show_bug.cgi?id=20340
gl_array_object encapsulates a set of vertex arrays (see the
GL_APPLE_vertex_array_object extension).
Create a private gl_array_object for drawing the quad for intel_clear_tris()
so we don't have to worry about the user's vertex array state.
This fixes the no-op glClear bug #21638 and removes the need to call
_mesa_PushClientAttrib() and _mesa_PopClientAttrib().
Don't really delete vertex array objects until the refcount hits zero.
At that time, unbind any pointers to VBOs.
(cherry picked from commit 32b851c807)
For non-stereo visuals, which is all we support, we treat
GL_FRONT_LEFT as GL_FRONT. However, they are technically different,
and they have different enum values. Test for either one to determine
if we're in front-buffer rendering mode.
This fix was suggested by Pierre Willenbrock.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 2085cf2462)
The current texture for any particular texture unit is given an additional
reference in update_texture_state(); but if the context is closed before
that texture can be released (which is quite frequent in normal use, unless
a program unbinds and deletes the texture and renders without it to force
a call to update_texture_state(), the memory is lost.
This affects general Mesa; but the i965 is particularly affected because
it allocates a considerable amount of additional memory for each allocated
texture.
(cherry picked from master, commit c230767d69)
