There's no indication in the spec that the image unit state other than the
bound texture object shouldn't be updated when glBindImageTexture() is called
passing the zero texture as argument. It's very unlikely that any application
would ever have relied on this, but it's easy to get right, and it fixes the
"state" ARB_shader_image_load_store piglit test.
Reviewed-by: Matt Turner <mattst88@gmail.com>
This is the required initial image unit state according to "Table 23.45. Image
State (state per image unit)" of the OpenGL 4.3 specification.
Reviewed-by: Matt Turner <mattst88@gmail.com>
This matches what _mesa_BindImageTextures() does. The derived image format
(gl_texture_image::TexFormat) isn't necessarily equivalent to the internal
format of the texture image. If a forbidden internal format has been
specified we need to mark the image unit as invalid as required by the spec,
regardless of the derived format. Fixes the "invalid"
ARB_shader_image_load_store piglit test.
Reviewed-by: Matt Turner <mattst88@gmail.com>
gl_texture_object::_MaxLevel doesn't have any meaningful value until
_mesa_test_texobj_completeness() has been run. Fixes the "level"
ARB_shader_image_load_store piglit test.
Reviewed-by: Matt Turner <mattst88@gmail.com>
This function will be useful for back-ends to translate an image internal
format as specified in GLSL code into a mesa format.
Reviewed-by: Matt Turner <mattst88@gmail.com>
When we implemented the format conversion rewrite we forgot to handle
GL_COLOR_INDEX here, which needs special handling.
Fixes the following piglit test:
bin/gl-1.0-drawpixels-color-index -auto -fbo
Buzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90213
Tested-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
This is consistent with the untyped surface read opcode. From now on
all typed and untyped surface access opcodes will follow the same
pattern: src[0] will be the message payload, src[1] will be the
surface index and src[2] will be a control immediate (atomic operation
for atomic opcodes and number of vector components for surface read
and write opcodes).
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
The generate_untyped_*() methods do nothing useful other than calling
the corresponding function from brw_eu_emit.c. The calls to
brw_mark_surface_used() will go away too in a future commit.
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Change brw_untyped_atomic() and brw_untyped_surface_read() to take the
surface index as a register instead of a constant and to use
brw_send_indirect_message() to emit the indirect variant of send with
a dynamically calculated message descriptor. This will be required to
support variable indexing of image arrays for
ARB_shader_image_load_store.
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Tested on Ivybridge, Haswell and Broadwell.
v2:
* Use SET_FIELD. (Ken)
* Use simd_size / 16 to support SIMD8/16/32. Ken suggested
that we might be able to do it arithmetically rather than just
supporting SIMD8 and SIMD16 with a conditional.
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
brw_emit_gpgpu_walker will be implemented in a subsequent patch.
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
