113    struct gl_renderbuffer *readRb, *drawRb;  in blit_nearest()  local
149       readRb = ctx->ReadBuffer->_ColorReadBuffer;  in blit_nearest()
152       if (readRb->Format == drawRb->Format) {  in blit_nearest()
154 	 pixelSize = _mesa_get_format_bytes(readRb->Format);  in blit_nearest()
162       readRb = ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;  in blit_nearest()
169       if (readRb->Format == MESA_FORMAT_Z32_FLOAT ||  in blit_nearest()
170 	  readRb->Format == MESA_FORMAT_Z32_FLOAT_X24S8) {  in blit_nearest()
178       readRb = ctx->ReadBuffer->Attachment[BUFFER_STENCIL].Renderbuffer;  in blit_nearest()
211    if (readRb == drawRb) {  in blit_nearest()
218       GLint formatSize = _mesa_get_format_bytes(readRb->Format);  in blit_nearest()
220       ctx->Driver.MapRenderbuffer(ctx, readRb, 0, 0,  in blit_nearest()
221                                   readRb->Width, readRb->Height,  in blit_nearest()
235          srcMap += rowStride * (readRb->Height - 1);  in blit_nearest()
236          dstMap += rowStride * (readRb->Height - 1);  in blit_nearest()
248       ctx->Driver.MapRenderbuffer(ctx, readRb,  in blit_nearest()
261          ctx->Driver.UnmapRenderbuffer(ctx, readRb);  in blit_nearest()
300 	    _mesa_unpack_rgba_row(readRb->Format, srcWidth, srcRowStart,  in blit_nearest()
304 	    _mesa_unpack_float_z_row(readRb->Format, srcWidth, srcRowStart,  in blit_nearest()
308 	    _mesa_unpack_uint_z_row(readRb->Format, srcWidth, srcRowStart,  in blit_nearest()
312 	    _mesa_unpack_ubyte_stencil_row(readRb->Format, srcWidth,  in blit_nearest()
348    ctx->Driver.UnmapRenderbuffer(ctx, readRb);  in blit_nearest()
349    if (drawRb != readRb) {  in blit_nearest()
492    struct gl_renderbuffer *readRb = ctx->ReadBuffer->_ColorReadBuffer;  in blit_linear()  local
516    gl_format readFormat = _mesa_get_srgb_format_linear(readRb->Format);  in blit_linear()
562    if (readRb == drawRb) {  in blit_linear()
564       ctx->Driver.MapRenderbuffer(ctx, readRb,  in blit_linear()
565                                   0, 0, readRb->Width, readRb->Height,  in blit_linear()
584       ctx->Driver.MapRenderbuffer(ctx, readRb,  in blit_linear()
585 				  0, 0, readRb->Width, readRb->Height,  in blit_linear()
598          ctx->Driver.UnmapRenderbuffer(ctx, readRb);  in blit_linear()
700    ctx->Driver.UnmapRenderbuffer(ctx, readRb);  in blit_linear()
701    if (drawRb != readRb) {  in blit_linear()