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mesa: add missing SNORM formats in _mesa_base_fbo_format()

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We weren't handling the LUMINANCE_SNORM, LUMINANCE_ALPHA_SNORM and
INTENSITY_SNORM cases.  Note that adding these cases here does not
require a driver to support rendering to these surface types.  If
the driver can't do it we'll report an incomplete framebuffer.

NVIDIA doesn't support GL_EXT_texture_snorm but their driver
accepts these formats in glRenderBufferStorage().

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
This commit is contained in:
Brian Paul
2014-01-08 09:05:29 -07:00
parent 689ec8dfb2
commit 513a324b88
1 changed files with 16 additions and 0 deletions
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16
src/mesa/main/fbobject.c
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@@ -1504,6 +1504,22 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
return ctx->API == API_OPENGL_COMPAT &&
ctx->Extensions.EXT_texture_snorm &&
ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
case GL_LUMINANCE_SNORM:
case GL_LUMINANCE8_SNORM:
case GL_LUMINANCE16_SNORM:
return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
? GL_LUMINANCE : 0;
case GL_LUMINANCE_ALPHA_SNORM:
case GL_LUMINANCE8_ALPHA8_SNORM:
case GL_LUMINANCE16_ALPHA16_SNORM:
return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
? GL_LUMINANCE_ALPHA : 0;
case GL_INTENSITY_SNORM:
case GL_INTENSITY8_SNORM:
case GL_INTENSITY16_SNORM:
return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
? GL_INTENSITY : 0;
case GL_R16F:
case GL_R32F:
return ((_mesa_is_desktop_gl(ctx) &&