[Mesa-dev] [PATCH] st/mesa: use enum types instead of int/unsigned (v2)

[Brian Paul]

Use the proper enum types for various variables.  Makes life in gdb
a little nicer.  Note that the size of enum bitfields must be one
larger so the high bit is always zero (for MSVC).

v2: also increase size of image_format bitfield, per Eric Engestrom.

Reviewed-by: Charmaine Lee <charmainel at vmware.com>
---
 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..3e51936 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;
    glsl_base_type tex_type:5;
    unsigned tex_shadow:1;
-   unsigned image_format:9;
+   enum pipe_format image_format:10;
    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