I don't know of any applications that actually use it. Now that Mesa
supports GL_ARB_separate_shader_objects in all drivers, this extension
is just cruft.
The entrypoints for the extension remain in the XML. This is done so
that a new libGL will continue to provide dispatch support for old
drivers that try to expose this extension.
Future patches will add OpenGL ES GL_EXT_separate_shader_objects, but
that's a different thing.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
This reduces confusion since gl_shader::Type is sometimes
GL_SHADER_PROGRAM_MESA but is more frequently
GL_SHADER_{VERTEX,GEOMETRY,FRAGMENT}. It also has the advantage that
when switching on gl_shader::Stage, the compiler will alert if one of
the possible enum types is unhandled. Finally, many functions in
src/glsl (especially those dealing with linking) already use
gl_shader_stage to represent pipeline stages; using gl_shader::Stage
in those functions avoids the need for a conversion.
Note: in the process I changed _mesa_write_shader_to_file() so that if
it encounters an unexpected shader stage, it will use a file suffix of
"????" rather than "geom".
Reviewed-by: Brian Paul <brianp@vmware.com>
v2: Split from patch "mesa: Store gl_shader_stage enum in gl_shader objects."
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This patch moves following bitfields and variables to the data
structure:
explicit_location, explicit_index, explicit_binding, has_initializer,
is_unmatched_generic_inout, location_frac, from_named_ifc_block_nonarray,
from_named_ifc_block_array, depth_layout, location, index, binding,
max_array_access, atomic
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
This patch moves following bitfields in to the data structure:
used, assigned, how_declared, mode, interpolation,
origin_upper_left, pixel_center_integer
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
This avoids a defect in lower_output_reads.
The problem is lower_output_reads treats the gl_FragData array as a single
variable. It first redirects all output writes to a temporary variable (array)
and then writes the whole temporary variable to the output, generating
assignments to all elements of gl_FragData.
BTW this pass can be modified to lower all arrays, not just inputs and outputs.
The question is whether it is worth it.
Reviewed-by: Paul Berry <stereotype441@gmail.com>
v2: addressed Paul Berry's comments
This gives the compiler the chance to inline and not export class symbols
even in the absence of LTO. Saves about 60kb on disk.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@.intel.com>
This eliminates built-in varyings such as gl_Color, gl_SecondaryColor,
gl_TexCoord, and gl_FogFragCoord if they are unused by the next stage or
not written at all (e.g. gl_TexCoord elements). The gl_TexCoord array is
broken down into separate vec4s if needed.
v2: - use a switch statement in varying_info_visitor::visit(ir_variable*)
- use snprintf
- disable the optimization for GLES2
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
