On Tuesday, 2017-11-07 07:07:55 -0700, Brian Paul wrote:
> On 11/07/2017 03:36 AM, Eric Engestrom wrote:
> > On Monday, 2017-11-06 14:00:30 -0700, Brian Paul wrote:
> > > Use the proper enum types for various variables. Makes life in gdb
> > > a little nicer.
> > > ---
> > > src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 7 ++++---
> > > src/mesa/state_tracker/st_glsl_to_tgsi_private.h | 6 +++---
> > > src/mesa/state_tracker/st_mesa_to_tgsi.c | 6 +++---
> > > src/mesa/state_tracker/st_mesa_to_tgsi.h | 7 ++++---
> > > 4 files changed, 14 insertions(+), 12 deletions(-)
> > >
> > > diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
> > > b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
> > > index 54e1961..2048b59 100644
> > > --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
> > > +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
> > > @@ -179,10 +179,10 @@ public:
> > > int num_address_regs;
> > > uint32_t samplers_used;
> > > glsl_base_type sampler_types[PIPE_MAX_SAMPLERS];
> > > - int sampler_targets[PIPE_MAX_SAMPLERS]; /**< One of TGSI_TEXTURE_*
> > > */
> > > + enum tgsi_texture_type sampler_targets[PIPE_MAX_SAMPLERS];
> > > int images_used;
> > > int image_targets[PIPE_MAX_SHADER_IMAGES];
> > > - unsigned image_formats[PIPE_MAX_SHADER_IMAGES];
> > > + enum pipe_format image_formats[PIPE_MAX_SHADER_IMAGES];
> > > bool indirect_addr_consts;
> > > int wpos_transform_const;
> > >
> > > @@ -6489,7 +6489,8 @@ st_translate_program(
> > > /* texture samplers */
> > > for (i = 0; i < frag_const->MaxTextureImageUnits; i++) {
> > > if (program->samplers_used & (1u << i)) {
> > > - unsigned type =
> > > st_translate_texture_type(program->sampler_types[i]);
> > > + enum tgsi_return_type type =
> > > + st_translate_texture_type(program->sampler_types[i]);
> > >
> > > t->samplers[i] = ureg_DECL_sampler(ureg, i);
> > >
> > > diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi_private.h
> > > b/src/mesa/state_tracker/st_glsl_to_tgsi_private.h
> > > index d57525d..bdc7448 100644
> > > --- a/src/mesa/state_tracker/st_glsl_to_tgsi_private.h
> > > +++ b/src/mesa/state_tracker/st_glsl_to_tgsi_private.h
> > > @@ -127,13 +127,13 @@ public:
> > > unsigned is_64bit_expanded:1;
> > > unsigned sampler_base:5;
> > > unsigned sampler_array_size:6; /**< 1-based size of sampler array, 1
> > > if not array */
> > > - unsigned tex_target:4; /**< One of TEXTURE_*_INDEX */
> > > + gl_texture_index tex_target:5;
> >
> > This bump is an unrelated bug fix, which should be in its own commit
> > (before this patch) with:
>
> Mmm, it's not really a bug fix. The 4-bit unsigned field is fine as it is.
> But when we change an unsigned bitfield into a enum bitfield we have add one
> extra bit for MSVC to ensure the high bit is always zero. See
> eedecb4ecae36c5b019 for more info.
I was thinking of the fact there are 12 values in the enum, but my maths
was off, 4 bits are enough for that.
Worth adding the MSVC comment to the commit message?
>
> There should be no change in the struct size.
>
> -Brian
>
> >
> > Cc: Marek Olšák <marek.ol...@amd.com>
> > Fixes: dbf64ea28bb20bafe5a7d "glsl_to_tgsi: reduce the size of
> > glsl_to_tgsi_instruction using bitfields"
> > Reviewed-by: Eric Engestrom <eric.engest...@imgtec.com>
> >
> > > glsl_base_type tex_type:5;
> > > unsigned tex_shadow:1;
> > > - unsigned image_format:9;
> > > + enum pipe_format image_format:9;
Values up to 310 => 9 bits, so this should be changed to 10 to account for
the MSVC "peculiarity", right?
> > > unsigned tex_offset_num_offset:3;
> > > unsigned dead_mask:4; /**< Used in dead code elimination */
> > > - unsigned buffer_access:3; /**< buffer access type */
> > > + unsigned buffer_access:3; /**< bitmask of TGSI_MEMORY_x bits */
> > >
> > > const struct tgsi_opcode_info *info;
> > > };
> > > diff --git a/src/mesa/state_tracker/st_mesa_to_tgsi.c
> > > b/src/mesa/state_tracker/st_mesa_to_tgsi.c
> > > index fa9fa44..8a61776 100644
> > > --- a/src/mesa/state_tracker/st_mesa_to_tgsi.c
> > > +++ b/src/mesa/state_tracker/st_mesa_to_tgsi.c
> > > @@ -166,8 +166,8 @@ src_register( struct st_translate *t,
> > > /**
> > > * Map mesa texture target to TGSI texture target.
> > > */
> > > -unsigned
> > > -st_translate_texture_target(GLuint textarget, GLboolean shadow)
> > > +enum tgsi_texture_type
> > > +st_translate_texture_target(gl_texture_index textarget, GLboolean shadow)
> > > {
> > > if (shadow) {
> > > switch (textarget) {
> > > @@ -225,7 +225,7 @@ st_translate_texture_target(GLuint textarget,
> > > GLboolean shadow)
> > > /**
> > > * Map GLSL base type to TGSI return type.
> > > */
> > > -unsigned
> > > +enum tgsi_return_type
> > > st_translate_texture_type(enum glsl_base_type type)
> > > {
> > > switch (type) {
> > > diff --git a/src/mesa/state_tracker/st_mesa_to_tgsi.h
> > > b/src/mesa/state_tracker/st_mesa_to_tgsi.h
> > > index 106cf85..06e8b70 100644
> > > --- a/src/mesa/state_tracker/st_mesa_to_tgsi.h
> > > +++ b/src/mesa/state_tracker/st_mesa_to_tgsi.h
> > > @@ -30,6 +30,7 @@
> > > #define ST_MESA_TO_TGSI_H
> > >
> > > #include "main/glheader.h"
> > > +#include "main/mtypes.h"
> > >
> > > #include "pipe/p_compiler.h"
> > > #include "pipe/p_defines.h"
> > > @@ -62,10 +63,10 @@ st_translate_mesa_program(
> > > const ubyte outputSemanticName[],
> > > const ubyte outputSemanticIndex[]);
> > >
> > > -unsigned
> > > -st_translate_texture_target(GLuint textarget, GLboolean shadow);
> > > +enum tgsi_texture_type
> > > +st_translate_texture_target(gl_texture_index textarget, GLboolean
> > > shadow);
> > >
> > > -unsigned
> > > +enum tgsi_return_type
> > > st_translate_texture_type(enum glsl_base_type type);
> > >
> > > #if defined __cplusplus
> > > --
> > > 1.9.1
> > >
>
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