diff options
Diffstat (limited to 'src/mesa/main')
| -rw-r--r-- | src/mesa/main/readpix.c | 28 | ||||
| -rw-r--r-- | src/mesa/main/readpix.h | 3 |
2 files changed, 17 insertions, 14 deletions
diff --git a/src/mesa/main/readpix.c b/src/mesa/main/readpix.c index ac46f7e47de..9d72c1c31b0 100644 --- a/src/mesa/main/readpix.c +++ b/src/mesa/main/readpix.c @@ -47,17 +47,14 @@ * Return true if the conversion L=R+G+B is needed. */ GLboolean -_mesa_need_rgb_to_luminance_conversion(mesa_format texFormat, GLenum format) +_mesa_need_rgb_to_luminance_conversion(GLenum srcBaseFormat, + GLenum dstBaseFormat) { - GLenum baseTexFormat = _mesa_get_format_base_format(texFormat); - - return (baseTexFormat == GL_RG || - baseTexFormat == GL_RGB || - baseTexFormat == GL_RGBA) && - (format == GL_LUMINANCE || - format == GL_LUMINANCE_ALPHA || - format == GL_LUMINANCE_INTEGER_EXT || - format == GL_LUMINANCE_ALPHA_INTEGER_EXT); + return (srcBaseFormat == GL_RG || + srcBaseFormat == GL_RGB || + srcBaseFormat == GL_RGBA) && + (dstBaseFormat == GL_LUMINANCE || + dstBaseFormat == GL_LUMINANCE_ALPHA); } /** @@ -89,6 +86,8 @@ _mesa_get_readpixels_transfer_ops(const struct gl_context *ctx, GLboolean uses_blit) { GLbitfield transferOps = ctx->_ImageTransferState; + GLenum srcBaseFormat = _mesa_get_format_base_format(texFormat); + GLenum dstBaseFormat = _mesa_unpack_format_to_base_format(format); if (format == GL_DEPTH_COMPONENT || format == GL_DEPTH_STENCIL || @@ -125,7 +124,7 @@ _mesa_get_readpixels_transfer_ops(const struct gl_context *ctx, * have any effect anyway. */ if (_mesa_get_format_datatype(texFormat) == GL_UNSIGNED_NORMALIZED && - !_mesa_need_rgb_to_luminance_conversion(texFormat, format)) { + !_mesa_need_rgb_to_luminance_conversion(srcBaseFormat, dstBaseFormat)) { transferOps &= ~IMAGE_CLAMP_BIT; } @@ -148,6 +147,7 @@ _mesa_readpixels_needs_slow_path(const struct gl_context *ctx, GLenum format, { struct gl_renderbuffer *rb = _mesa_get_read_renderbuffer_for_format(ctx, format); + GLenum dstBaseFormat = _mesa_unpack_format_to_base_format(format); assert(rb); @@ -168,7 +168,8 @@ _mesa_readpixels_needs_slow_path(const struct gl_context *ctx, GLenum format, default: /* Color formats. */ - if (_mesa_need_rgb_to_luminance_conversion(rb->Format, format)) { + if (_mesa_need_rgb_to_luminance_conversion(rb->_BaseFormat, + dstBaseFormat)) { return GL_TRUE; } @@ -436,6 +437,7 @@ read_rgba_pixels( struct gl_context *ctx, uint8_t rebase_swizzle[4]; struct gl_framebuffer *fb = ctx->ReadBuffer; struct gl_renderbuffer *rb = fb->_ColorReadBuffer; + GLenum dstBaseFormat = _mesa_unpack_format_to_base_format(format); if (!rb) return; @@ -447,7 +449,7 @@ read_rgba_pixels( struct gl_context *ctx, dst_stride = _mesa_image_row_stride(packing, width, format, type); dst_format = _mesa_format_from_format_and_type(format, type); convert_rgb_to_lum = - _mesa_need_rgb_to_luminance_conversion(rb->Format, format); + _mesa_need_rgb_to_luminance_conversion(rb->_BaseFormat, dstBaseFormat); dst = (GLubyte *) _mesa_image_address2d(packing, pixels, width, height, format, type, 0, 0); diff --git a/src/mesa/main/readpix.h b/src/mesa/main/readpix.h index 41116e430ec..481ad9d9c37 100644 --- a/src/mesa/main/readpix.h +++ b/src/mesa/main/readpix.h @@ -38,7 +38,8 @@ _mesa_readpixels_needs_slow_path(const struct gl_context *ctx, GLenum format, GLenum type, GLboolean uses_blit); extern GLboolean -_mesa_need_rgb_to_luminance_conversion(mesa_format texFormat, GLenum format); +_mesa_need_rgb_to_luminance_conversion(GLenum srcBaseFormat, + GLenum dstBaseFormat); extern GLboolean _mesa_need_luminance_to_rgb_conversion(GLenum srcBaseFormat, |