fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-02 12:18:09 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

mesa/formatquery: Added queries related to image textures

Browse source 
From the ARB_internalformat_query2 specification:

   "- IMAGE_TEXEL_SIZE: The size of a texel when the resource when used as
      an image texture is returned in <params>.  This is the value from the
      /Size/ column in Table 3.22. If the resource is not supported for image
      textures, or if image textures are not supported, zero is returned.

    - IMAGE_COMPATIBILITY_CLASS: The compatibility class of the resource when
      used as an image texture is returned in <params>.  This corresponds to
      the value from the /Class/ column in Table 3.22. The possible values
      returned are IMAGE_CLASS_4_X_32, IMAGE_CLASS_2_X_32, IMAGE_CLASS_1_X_32,
      IMAGE_CLASS_4_X_16, IMAGE_CLASS_2_X_16, IMAGE_CLASS_1_X_16,
      IMAGE_CLASS_4_X_8, IMAGE_CLASS_2_X_8, IMAGE_CLASS_1_X_8,
      IMAGE_CLASS_11_11_10, and IMAGE_CLASS_10_10_10_2, which correspond to
      the 4x32, 2x32, 1x32, 4x16, 2x16, 1x16, 4x8, 2x8, 1x8, the class
      (a) 11/11/10 packed floating-point format, and the class (b)
      10/10/10/2 packed formats, respectively.
      If the resource is not supported for image textures, or if image
      textures are not supported, NONE is returned.

    - IMAGE_PIXEL_FORMAT: The pixel format of the resource when used as an
      image texture is returned in <params>.  This is the value
      from the /Pixel format/ column in Table 3.22. If the resource is not
      supported for image textures, or if image textures are not supported,
      NONE is returned.

    - IMAGE_PIXEL_TYPE: The pixel type of the resource when used as an
      image texture is returned in <params>.  This is the value from
      the /Pixel type/ column in Table 3.22. If the resource is not supported
      for image textures, or if image textures are not supported, NONE is
      returned."

Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Antia Puentes 2015-12-19 19:50:25 +01:00 • committed by Eduardo Lima Mitev
parent 990a7200e0
commit bd45fb3de4
1 changed files with 57 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

65
src/mesa/main/formatquery.c
View file

@ -1220,21 +1220,70 @@ _mesa_GetInternalformativ(GLenum target, GLenum internalformat, GLenum pname,
buffer);
break;
case GL_IMAGE_TEXEL_SIZE:
/* @TODO */
case GL_IMAGE_TEXEL_SIZE: {
mesa_format image_format;
if (!_mesa_has_ARB_shader_image_load_store(ctx) ||
target == GL_RENDERBUFFER)
goto end;
image_format = _mesa_get_shader_image_format(internalformat);
if (image_format == MESA_FORMAT_NONE)
goto end;
/* We return bits */
buffer[0] = (_mesa_get_format_bytes(image_format) * 8);
break;
}
case GL_IMAGE_COMPATIBILITY_CLASS:
/* @TODO */
if (!_mesa_has_ARB_shader_image_load_store(ctx) ||
target == GL_RENDERBUFFER)
goto end;
buffer[0] = _mesa_get_image_format_class(internalformat);
break;
case GL_IMAGE_PIXEL_FORMAT:
/* @TODO */
break;
case GL_IMAGE_PIXEL_FORMAT: {
GLint base_format;
case GL_IMAGE_PIXEL_TYPE:
/* @TODO */
if (!_mesa_has_ARB_shader_image_load_store(ctx) ||
target == GL_RENDERBUFFER ||
!_mesa_is_shader_image_format_supported(ctx, internalformat))
goto end;
base_format = _mesa_base_tex_format(ctx, internalformat);
if (base_format == -1)
goto end;
if (_mesa_is_enum_format_integer(internalformat))
buffer[0] = _mesa_base_format_to_integer_format(base_format);
else
buffer[0] = base_format;
break;
}
case GL_IMAGE_PIXEL_TYPE: {
mesa_format image_format;
GLenum datatype;
GLuint comps;
if (!_mesa_has_ARB_shader_image_load_store(ctx) ||
target == GL_RENDERBUFFER)
goto end;
image_format = _mesa_get_shader_image_format(internalformat);
if (image_format == MESA_FORMAT_NONE)
goto end;
_mesa_uncompressed_format_to_type_and_comps(image_format, &datatype,
&comps);
if (!datatype)
goto end;
buffer[0] = datatype;
break;
}
case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE: {
if (!_mesa_has_ARB_shader_image_load_store(ctx))