diff options
Diffstat (limited to 'mesalib/src/mesa/main/image.c')
| -rw-r--r-- | mesalib/src/mesa/main/image.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/mesalib/src/mesa/main/image.c b/mesalib/src/mesa/main/image.c index ca31e53a8..9b9e83802 100644 --- a/mesalib/src/mesa/main/image.c +++ b/mesalib/src/mesa/main/image.c @@ -243,12 +243,14 @@ _mesa_components_in_format( GLenum format ) case GL_RGB: case GL_BGR: case GL_RGB_INTEGER_EXT: + case GL_BGR_INTEGER_EXT: return 3; case GL_RGBA: case GL_BGRA: case GL_ABGR_EXT: case GL_RGBA_INTEGER_EXT: + case GL_BGRA_INTEGER_EXT: return 4; default: @@ -814,6 +816,7 @@ _mesa_is_color_format(GLenum format) case GL_INTENSITY16_SNORM: case GL_RGB9_E5: case GL_R11F_G11F_B10F: + case GL_RGB10_A2UI: return GL_TRUE; case GL_YCBCR_MESA: /* not considered to be RGB */ /* fall-through */ @@ -1000,6 +1003,7 @@ _mesa_is_integer_format(GLenum format) case GL_INTENSITY8I_EXT: case GL_LUMINANCE8I_EXT: case GL_LUMINANCE_ALPHA8I_EXT: + case GL_RGB10_A2UI: return GL_TRUE; default: return GL_FALSE; @@ -1067,6 +1071,93 @@ _mesa_is_compressed_format(struct gl_context *ctx, GLenum format) /** + * Does the given base texture/renderbuffer format have the channel + * named by 'pname'? + */ +GLboolean +_mesa_base_format_has_channel(GLenum base_format, GLenum pname) +{ + switch (pname) { + case GL_TEXTURE_RED_SIZE: + case GL_TEXTURE_RED_TYPE: + case GL_RENDERBUFFER_RED_SIZE_EXT: + case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE: + if (base_format == GL_RED || + base_format == GL_RG || + base_format == GL_RGB || + base_format == GL_RGBA) { + return GL_TRUE; + } + return GL_FALSE; + case GL_TEXTURE_GREEN_SIZE: + case GL_TEXTURE_GREEN_TYPE: + case GL_RENDERBUFFER_GREEN_SIZE_EXT: + case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE: + if (base_format == GL_RG || + base_format == GL_RGB || + base_format == GL_RGBA) { + return GL_TRUE; + } + return GL_FALSE; + case GL_TEXTURE_BLUE_SIZE: + case GL_TEXTURE_BLUE_TYPE: + case GL_RENDERBUFFER_BLUE_SIZE_EXT: + case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE: + if (base_format == GL_RGB || + base_format == GL_RGBA) { + return GL_TRUE; + } + return GL_FALSE; + case GL_TEXTURE_ALPHA_SIZE: + case GL_TEXTURE_ALPHA_TYPE: + case GL_RENDERBUFFER_ALPHA_SIZE_EXT: + case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE: + if (base_format == GL_RGBA || + base_format == GL_ALPHA || + base_format == GL_LUMINANCE_ALPHA) { + return GL_TRUE; + } + return GL_FALSE; + case GL_TEXTURE_LUMINANCE_SIZE: + case GL_TEXTURE_LUMINANCE_TYPE: + if (base_format == GL_LUMINANCE || + base_format == GL_LUMINANCE_ALPHA) { + return GL_TRUE; + } + return GL_FALSE; + case GL_TEXTURE_INTENSITY_SIZE: + case GL_TEXTURE_INTENSITY_TYPE: + if (base_format == GL_INTENSITY) { + return GL_TRUE; + } + return GL_FALSE; + case GL_TEXTURE_DEPTH_SIZE: + case GL_TEXTURE_DEPTH_TYPE: + case GL_RENDERBUFFER_DEPTH_SIZE_EXT: + case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE: + if (base_format == GL_DEPTH_STENCIL || + base_format == GL_DEPTH_COMPONENT) { + return GL_TRUE; + } + return GL_FALSE; + case GL_RENDERBUFFER_STENCIL_SIZE_EXT: + case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE: + if (base_format == GL_DEPTH_STENCIL || + base_format == GL_STENCIL_INDEX) { + return GL_TRUE; + } + return GL_FALSE; + default: + _mesa_warning(NULL, "%s: Unexpected channel token 0x%x\n", + __FUNCTION__, pname); + return GL_FALSE; + } + + return GL_FALSE; +} + + +/** * Return the address of a specific pixel in an image (1D, 2D or 3D). * * Pixel unpacking/packing parameters are observed according to \p packing. |