fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-09 02:28:10 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

glsl: Keep track of the set of fragment outputs read by a GL program.

Browse source 
This is the set of shader outputs whose initial value is provided to
the shader by some external means when the shader is executed, rather
than computed by the shader itself.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Francisco Jerez 2016-07-19 20:30:24 -07:00
parent 711213fb72
commit 2018371692
2 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
src/compiler/glsl/ir_set_program_inouts.cpp
View file

@ -139,6 +139,8 @@ mark(struct gl_program *prog, ir_variable *var, int offset, int len,
prog->PatchOutputsWritten |= bitfield;
else if (!var->data.read_only)
prog->OutputsWritten |= bitfield;
if (var->data.fb_fetch_output)
prog->OutputsRead |= bitfield;
}
}
}
@ -444,6 +446,7 @@ do_set_program_inouts(exec_list *instructions, struct gl_program *prog,
prog->InputsRead = 0;
prog->OutputsWritten = 0;
prog->OutputsRead = 0;
prog->PatchInputsRead = 0;
prog->PatchOutputsWritten = 0;
prog->SystemValuesRead = 0;

1
src/mesa/main/mtypes.h
View file

@ -1907,6 +1907,7 @@ struct gl_program
GLbitfield64 InputsRead; /**< Bitmask of which input regs are read */
GLbitfield64 DoubleInputsRead; /**< Bitmask of which input regs are read and are doubles */
GLbitfield64 OutputsWritten; /**< Bitmask of which output regs are written */
GLbitfield64 OutputsRead; /**< Bitmask of which output regs are read */
GLbitfield PatchInputsRead; /**< VAR[0..31] usage for patch inputs (user-defined only) */
GLbitfield PatchOutputsWritten; /**< VAR[0..31] usage for patch outputs (user-defined only) */
GLbitfield SystemValuesRead; /**< Bitmask of SYSTEM_VALUE_x inputs used */