This won't help much except for applications that use a ton
of resident handles. Though, this will reduce the winsys
overhead a little bit.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Resident buffers have to be added to every new command stream.
Though, this could be slightly improved when current shaders
don't use any bindless textures/images but usually applications
tend to use bindless for almost every draw call, and the winsys
thread might help when buffers are added early.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This implements the Gallium interface. Decompression of resident
textures/images will follow in the next patches.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
For each texture/image handles, we need to allocate a new
buffer for the bindless descriptor. But when the number of
buffers added to the current CS becomes high, the overhead
in the winsys (and in the kernel) is important.
To reduce this bottleneck, the idea is to suballocate the
bindless descriptors using a slab similar to the one used
in the winsys.
Currently, a buffer can hold 1024 bindless descriptors but
this limit is arbitrary and could be changed in the future
for some reasons. Once a slab is allocated the "base" buffer
is added to a per-context list.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
To share some common code between bound and bindless images.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
To share some common code between bound and bindless textures.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This will be used in order to initialize resident descriptors
for bindless textures/images.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
The ARB_bindless_texture spec say:
"If ARB_seamless_cubemap (or OpenGL 4.0, which includes it) is
supported, the per-context seamless cubemap enable is ignored
and treated as disabled when using texture handles."
"If AMD_seamless_cubemap_per_texture is supported, the seamless
cube map texture parameter of the underlying texture does apply
when texture handles are used."
The per-context seamless cubemap flag should only be enabled for
bound textures/samplers.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
When a texture (or an image) instruction uses a bindless sampler
(respectively a bindless image), make sure the DCE pass won't
remove code when the resource is a temporary variable.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
For example, TGSI_OPCODE_STORE for bindless images might use
a constant buffer or a shader input.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Whether bindless texture operations are supported by the
underlying driver.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This fixes a 64-bit vs 32-bit mismatch when setting an array
of bindless samplers. Also, we need to unconditionally set
size_mul to 2 when the underlying uniform is bindless.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
When a bindless sampler/image is bound to a texture/image unit,
we have to overwrite the constant value by the resident handle
directly in the constant buffer before the next draw.
One solution is to keep track of a pointer to the data.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This is analogous to the existing SamplerUnits and SamplerTargets,
but it loops over bindless samplers bound to texture units.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This will also be used for looping over bindless samplers bound
to texture units.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This will also be used for looping over bindless samplers bound
to texture units.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
In order to set the explicit binding value for bindless
samplers/images.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Yes, ARB_bindless_texture allows to do this. In other words, in
a situation like:
layout (bindless_sampler) uniform sampler2D tex;
The 'tex' sampler uniform can be either set with glUniform1()
(old-style bound samplers) or with glUniformHandleui() (resident
handles).
When glUniform1() is used, we have to somehow make the texture
resident "under the hood". This is done by requesting a texture
handle to the driver, making the handle resident in the current
context and overwriting the value directly in the constant buffer.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Old-style samplers (ie. bound samplers) are stored as
PROGRAM_SAMPLER, while bindless ones are PROGRAM_UNIFORM.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Bindless samplers are considered PROGRAM_UNIFORM but
add_uniform_to_shader::visit_field() is based on glsl_type.
Because only ir_variable knows if the uniform variable is
bindless via ir_variable::bindless, store it instead of
adding a new parameter to visit_field().
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
The ARB_bindless_texture spec says:
"The error INVALID_OPERATION is generated by BufferData if it is
called to modify a buffer object bound to a buffer texture while
that texture object is referenced by one or more texture handles."
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
The ARB_bindless_texture spec says:
"The error INVALID_OPERATION is generated by TexImage*, CopyTexImage*,
CompressedTexImage*, TexBuffer*, TexParameter*, as well as other
functions defined in terms of these, if the texture object to be
modified is referenced by one or more texture or image handles."
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
The ARB_bindless_texture spec says:
"The ARB_bindless_texture spec says: "The error INVALID_OPERATION
is generated by TexImage*, CopyTexImage*, CompressedTexImage*,
TexBuffer*, TexParameter*, as well as other functions defined in
terms of these, if the texture object to be modified is referenced
by one or more texture or image handles."
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
The ARB_bindless_texture spec says:
"The error INVALID_OPERATION is generated by SamplerParameter* if
<sampler> identifies a sampler object referenced by one or more
texture handles."
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Bindless sampler/image handles are represented using 64-bit
unsigned integers.
The ARB_bindless_texture spec says:
"The error INVALID_OPERATION is generated by UniformHandleui64{v}ARB
if the sampler or image uniform being updated has the "bound_sampler"
or "bound_image" layout qualifier"."
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This adds support in the VBO and array code to handle unsigned
64-bit vertex attributes as specified by ARB_bindless_texture.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
