On 10/23/18 8:56 AM, Eduardo Lima Mitev wrote:
There exists _mesa_components_in_format() which already includes
all cases handled in _mesa_base_format_component_count().

I guess the idea here was that one function only covers 'base formats' and other one all formats. But I guess none of the users verify if 'base format' is sane this way? If this is the case and there are no regressions;

Reviewed-by: Tapani Pälli <tapani.pa...@intel.com>


---
  src/mesa/drivers/dri/i965/brw_blorp.c |  2 +-
  src/mesa/main/glformats.c             | 27 ---------------------------
  src/mesa/main/glformats.h             |  3 ---
  src/mesa/main/teximage.c              |  4 ++--
  4 files changed, 3 insertions(+), 33 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_blorp.c 
b/src/mesa/drivers/dri/i965/brw_blorp.c
index ad3a47ef035..b286b231537 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp.c
+++ b/src/mesa/drivers/dri/i965/brw_blorp.c
@@ -1195,7 +1195,7 @@ set_write_disables(const struct intel_renderbuffer *irb,
      * RGB we can treat alpha as not used and write whatever we like into it.
      */
     const GLenum base_format = irb->Base.Base._BaseFormat;
-   const int components = _mesa_base_format_component_count(base_format);
+   const int components = _mesa_components_in_format(base_format);
     bool disables = false;
assert(components > 0);
diff --git a/src/mesa/main/glformats.c b/src/mesa/main/glformats.c
index bbeb6034dd7..6cb3435dea2 100644
--- a/src/mesa/main/glformats.c
+++ b/src/mesa/main/glformats.c
@@ -1630,33 +1630,6 @@ _mesa_base_format_has_channel(GLenum base_format, GLenum 
pname)
  }
-/**
- * Returns the number of channels/components for a base format.
- */
-GLint
-_mesa_base_format_component_count(GLenum base_format)
-{
-   switch (base_format) {
-   case GL_LUMINANCE:
-   case GL_RED:
-   case GL_ALPHA:
-   case GL_INTENSITY:
-   case GL_DEPTH_COMPONENT:
-      return 1;
-   case GL_RG:
-   case GL_LUMINANCE_ALPHA:
-   case GL_DEPTH_STENCIL:
-      return 2;
-   case GL_RGB:
-      return 3;
-   case GL_RGBA:
-      return 4;
-   default:
-      return -1;
-   }
-}
-
-
  /**
   * If format is a generic compressed format, return the corresponding
   * non-compressed format.  For other formats, return the format as-is.
diff --git a/src/mesa/main/glformats.h b/src/mesa/main/glformats.h
index 5a21317159d..0aefdf50fef 100644
--- a/src/mesa/main/glformats.h
+++ b/src/mesa/main/glformats.h
@@ -119,9 +119,6 @@ _mesa_unpack_format_to_base_format(GLenum format);
  extern GLboolean
  _mesa_base_format_has_channel(GLenum base_format, GLenum pname);
-extern GLint
-_mesa_base_format_component_count(GLenum base_format);
-
  extern GLenum
  _mesa_generic_compressed_format_to_uncompressed_format(GLenum format);
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index d45854bd17f..6805b47c728 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -2407,8 +2407,8 @@ copytexture_error_check( struct gl_context *ctx, GLuint 
dimensions,
if (_mesa_is_gles(ctx)) {
        bool valid = true;
-      if (_mesa_base_format_component_count(baseFormat) >
-          _mesa_base_format_component_count(rb_base_format)) {
+      if (_mesa_components_in_format(baseFormat) >
+          _mesa_components_in_format(rb_base_format)) {
           valid = false;
        }
        if (baseFormat == GL_DEPTH_COMPONENT ||

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